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Journal articles on the topic 'Forest road loading'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Trzciński, Grzegorz, Waldemar Sieniawski, and Tadeusz Moskalik. "Effects of Timber Loads on Gross Vehicle Weight." Folia Forestalia Polonica, Series A - Forestry 55(4) (December 1, 2013): 159–67. https://doi.org/10.2478/ffp-2013-0017.

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Forest roads are characterized by low traffic, but heavy timber haulage trucks have a significant influence on road conditions and usually exceed the limit of 80–100 kN per axle. The excessive weight of the trucks degrades the road surface and the forest environment. This article presents the results of a study of timber transport loads from their places of acquirement (forest districts) to the recipient (a large sawmill). The analysis includes the parameters of the timber transport vehicles and focuses especially on the gross vehicle weight (GVW), the total weight of empty truck and tra

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Ševelová, Lenka, Aleš Florian, and Petr Hrůza. "Using Resilient Modulus to Determine the Subgrade Suitability for Forest Road Construction." Forests 11, no. 11 (2020): 1208. http://dx.doi.org/10.3390/f11111208.

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Forest roads are often constructed in environments with low bearing capacity of the subgrade. The subgrade then has an effect on their service life and damage. According to the methodology of the American Association of State Higway and Transportation Officiales AASHTO, the design of pavement is divided into three levels according to the intensity of the traffic load. For pavements with the highest load intensity, preparing the resilient modulus from a cyclic triaxial test is required. For other traffic load classes, including forest roads, the methodology allows the use of the estimate of res

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Rukomojnikov, Pavlovich. "Structuring of loading points and main skid road in conditions of existing road network in forest compartment." Istrazivanja i projektovanja za privredu 13, no. 3 (2015): 167–74. http://dx.doi.org/10.5937/jaes13-8866.

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Ziółkowski, Andrzej, Paweł Fuć, Piotr Lijewski, Aleks Jagielski, Maciej Bednarek, and Władysław Kusiak. "Analysis of Exhaust Emissions from Heavy-Duty Vehicles on Different Applications." Energies 15, no. 21 (2022): 7886. http://dx.doi.org/10.3390/en15217886.

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Emissions from the road transport sector are a major contributor to the climate change. Commonly used heavy vehicles powered by diesel engines emit toxic and harmful compounds that adversely affect the environment. For this reason, increasingly newer Euro emission standards are being introduced. Therefore, the emission performance of heavy-duty vehicles used in the transportation processes of diverse loads was investigated. The first research object was a set of vehicles equipped with a crane used for loading and unloading timber. The measurements were carried out in a specially designed resea

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Rodgers, M., A. Kielty, and M. G. Healy. "Performance of Granitic, Shale, and Limestone Forest Road Aggregates Subjected to Repeated Loading." Journal of Transportation Engineering 140, no. 4 (2014): 04014002. http://dx.doi.org/10.1061/(asce)te.1943-5436.0000654.

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Jujukin, Nikolai, and Leonid Kondratev. "INCREASING THE TRACTIVE EFFORT OF FOREST WINCHES DURING LOADING AND UNLOADING OPERATIONS." Voronezh Scientific-Technical Bulletin 4, no. 4 (2021): 84–88. http://dx.doi.org/10.34220/2311-8873-2021-4-4-84-88.

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The article analyzes the operation of various friction devices in order to select the most appropriate design for use on winches on a road train when performing loading and unloading operations. International experience in the operation of forest winches has shown that the most commonly used winches are disk, cone, pad-pneumatic friction clutches and external belt types. Due to the increase in the length of the transmitted torque and the reliability of the couplings, it is possible to significantly increase the pulling forces of winches without significantly changing the designs of other nodes

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Guimarães, Pompeu Paes, Julio Eduardo Arce, Eduardo Da Silva Lopes, Nilton Cesar Fiedler, Renato César Gonçalves Robert, and Fernando Seixas. "ANALYSIS OF FUEL CONSUMPTION SENSITIVITY IN FORESTRY ROAD TRANSPORT." FLORESTA 49, no. 2 (2019): 155. http://dx.doi.org/10.5380/rf.v49i2.49137.

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The objective of this work was to analyze how the variation of traveled distance, operational speed, journey time and net cargo transported influence the fuel consumption of vehicles in forest road transport. The data were collected in this operation, covering the area between the regions of Campo do Tenente (forest unit) and Piên (industrial unit), in the state of Paraná. We analyzed the partial elements, loaded trip and empty trip, as well as the total transport cycle (loading, unloading and travel). Using the same mechanical tractor, two vehicular compositions were studied, an articulated v

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Florian, Aleš, Lenka Ševelová, Kateřina Žáková, and Jaroslav Žák. "An Updated Cyclic CBR Test with Realistic Stress Values under the Plunger for Resilient Modulus Calculation." Forests 14, no. 12 (2023): 2425. http://dx.doi.org/10.3390/f14122425.

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The design and assessment of forest and rural road pavements made from unbound natural and recycled materials require the careful determination of their physical-mechanical properties. The fundamental parameter for characterizing the soil material property is considered to be the resilient modulus Mr. The generally accepted alternative solution for its calculation is the cyclic CBR test, which uses standard CBR testing equipment. To perform tests on intact specimens and under stress conditions corresponding to expected states of stress in a pavement structure, an updated cyclic CBR test is pro

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Dubin, D. A., O. A. Nakaznoi, D. A. Chizhov, and A. Yu Shmakov. "SPECIALIZED MEASURMENT SYSTEM FOR EXPERIMENTAL RESEARCH OF SUSPENSION SYSTEM LOADING CONDITIONS OF A HIGH MOBILITY TRACKED VEHICLES." Traktory i sel hozmashiny 84, no. 4 (2017): 16–24. http://dx.doi.org/10.17816/0321-4443-66266.

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Loading of cushioning systems, as a condition caused by external influences and operating conditions, for highspeed tracked vehicles is determined by the characteristics of the track profile and motion modes. The most reliable estimate of the operational parameters of loading of parts and suspension assemblies is obtained experimentally using specialized measuring equipment. Within the conducted investigations for determining of kinematic and force parameters of loading of the elements of the cushioning system of a 14-ton tracked vehicle while driving on forest ground roads, a measuring system

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А.Р., Бирман, Зубова О.В. та Угрюмов С.А. "Разработка стенда для определения потребной толщины многослойных дорожных одежд лесных дорог". Гидросфера. Опасные процессы и явления 1, № 6 (2024): 76–82. http://dx.doi.org/10.34753/hs.2024.6.1.76.

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Основными механическими характеристиками, определяющими эксплуатационные показатели лесной дороги, являются модуль деформации, характеризующий жесткость грунта в основании и его сопротивляемость деформации, а также модуль упругости, характеризующий как деформационные, так и прочностные свойства грунтов. Одним из главных параметров, определяющих величины указанных модулей, является величина деформации грунта, передаваемая через толщу дорожной одежды. Применяемые в настоящее время методики расчета нежестких дорожных одежд, как аналитические, так и экспериментальные, являются достаточно сложными

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Ho, Chun-Hsing, Jeremy DeGeyter, and Dada Zhang. "Five-Year Performance Evaluation of Geogrid Reinforcement in Low-Volume Unpaved Roads Using Dynamic Cone Penetrometer, Plate Load Test and Roadway Sensing." Geotechnics 3, no. 2 (2023): 306–19. http://dx.doi.org/10.3390/geotechnics3020018.

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This paper provides a five-year performance evaluation of an application of geogrid reinforcement in low-volume unpaved roads using dynamic cone penetrometer (DCP), plate load tests (PLT), and roadway sensing method. A Forest Service unpaved road located in northern Arizona, USA, exhibited severe deterioration on the surface, creating an unsafe traffic environment for vehicles. A total of four structural sections (1–4; 4.3 m wide) were installed in the 40 m long test area. One additional section of existing subgrade/roadbed with native soil adjacent to the test sections was used for comparison

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Chetverikova, I., P. Popikov, and S. Glushkov. "Improving the efficiency of manipulator-type machines with an improved hydraulic drive." IOP Conference Series: Earth and Environmental Science 875, no. 1 (2021): 012055. http://dx.doi.org/10.1088/1755-1315/875/1/012055.

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Abstract The article considers the possibility of increasing the efficiency of manipulator-type machines when harvesting wood by increasing the productivity, energy efficiency and reliability of the hydraulic equipment used. A combined method of transporting timber from logging sites by road and water transport using equipment with an improved hydraulic drive of the manipulator is proposed. The issue has not been worked through before. Using the example of the Northwestern Federal District, the author considers the development of forest areas located in the upper reaches of small and medium ri

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Яхьяев, Aydyn Yakhyaev, Абиев, and Yusif Abiev. "Organizational and technological features of the use of wood raw material obtained from intermediate felling in the beech forests of the Greater Caucasus." Forestry Engineering Journal 5, no. 1 (2015): 197–206. http://dx.doi.org/10.12737/11277.

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In the farms of the north-eastern slope of the Greater Caucasus wood raw material obtained from intermediate felling, is not fully utilized and is not effective, due to the organizational and technical difficulties of farms. In addressing these issues in 8 directions of the region with a length of 40-50 km 14 intermediate assembly points were organized, which are intended for the collection and temporary storage of wood raw material harvested within a radius of 15-20 km of the forest. Need to establish assembly points is due to the complexity of relief items and the possibility of year-round u

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Зубова, О. В., and В. В. Силецкий. "Investigation of the process of structure formation of a material from a mixture of nepheline sludge and crushed stone with the addition of cement." Известия СПбЛТА, no. 235 (June 1, 2021): 179–86. http://dx.doi.org/10.21266/2079-4304.2021.235.179-186.

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Приведено теоретическое и экспериментальное обоснование применения щебеночных дорожных одежд, укрепленных нефелиновым шламом и цементом, для покрытий лесных терминалов. Цель данного исследования – подбор наиболее прочного, технологичного и экономически эффективного материала для погрузочных площадок и складов временного хранения лесоматериалов в связи с ростом частоты применения многоступенчатой вывозки древесины. Результаты исследования показали, что получаемый материал обладает высокой прочностью и водостойкостью, соответствует требованиям ГОСТ к материалам покрытий, в том числе погрузочных

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15

Karballaeezadeh, Nader, Danial Mohammadzadeh S., Dariush Moazemi, Shahab S. Band, Amir Mosavi, and Uwe Reuter. "Smart Structural Health Monitoring of Flexible Pavements Using Machine Learning Methods." Coatings 10, no. 11 (2020): 1100. http://dx.doi.org/10.3390/coatings10111100.

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The pavement is a complex structure that is influenced by various environmental and loading conditions. The regular assessment of pavement performance is essential for road network maintenance. International roughness index (IRI) and pavement condition index (PCI) are well-known indices used for smoothness and surface condition assessment, respectively. Machine learning techniques have recently made significant advancements in pavement engineering. This paper presents a novel roughness-distress study using random forest (RF). After determining the PCI and IRI values for the sample units, the P

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Dyakova, Nina Alekseyevna, Aleksey Ivanovich Slivkin, Yelena Yevgen'yevna Chupandina, and Sergey Petrovich Gaponov. "IDENTIFICATION OF PERMISSIBLE AREAS OF PREPARATION OF MEDICINAL VEGETABLE RAW MATERIALS NEAR TRANSPORT LINES." chemistry of plant raw material, no. 4 (December 21, 2020): 179–86. http://dx.doi.org/10.14258/jcprm.2020047609.

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The purpose of the work is to study the permissible distance for the collection of medicinal plant raw materials near transport highways of different degrees of loading. The study was carried out in the Voronezh region on the example of eight different types of medicinal vegetable raw materials (Herring grass bitter, avian mountain grass, five-foot desert grass, plain thousand-year-old grass, double-ground nettle leaves, large planter leaves, common pajma flowers, core lip flowers) Collected in time of procurement along and at different distance from roads and railways of different degree of l

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Galimov, Rufan, Vitaliy Tikhonovskiy, Yurii Blynskii, et al. "Study of the efficiency of the transport support of forage harvesters when harvesting corn for silage in the conditions forest-steppe zone." E3S Web of Conferences 486 (2024): 06002. http://dx.doi.org/10.1051/e3sconf/202448606002.

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In the article, the authors presented methodological approaches and the results of a study of harvesting corn for silage. It has been established that the actual performance of high-performance forage harvesters during harvesting is significantly lower than the ideal one. The main problems were identified - the partial or complete lack of positioning, monitoring and logistics means of vehicles involved in the maintenance of forage harvesters, which leads to downtime and additional costs. Increasing the efficiency of all links of the harvesting and transport process can be achieved by using pos

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18

Short, Brian. "Conservation, Class and Custom: Lifespace and Conflict in a Nineteenth-century Forest Environment." Rural History 10, no. 2 (1999): 127–54. http://dx.doi.org/10.1017/s0956793300001758.

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Cannon… is busy now bringing fern from the moor to use as bedding, he has cut it about a mile off up the lane behind Belle Green. It is a rough road to bring it down. I think I will go up next time with the cart and help the children to rake it, it is such a nice crackly fern.At the East Grinstead Petty Sessions in March 1868 Charles, sixth Earl De La Warr brought ten poor men forward charged with oak and beech underwood cutting and trespass. George Edwards the Reeve had discovered six men cutting and tying, another three with handbills but who were not actually cutting at the time, and Abraha

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Proença, Maria da Conceição. "On the Need of Quick Monitoring for Wildfire Response from City Halls." Indian Journal of Image Processing and Recognition 2, no. 3 (2022): 1–4. http://dx.doi.org/10.54105/ijipr.c1014.042322.

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This case study shows that the assessment of burned areas can be done with remote sensing data free of charges in a simple laptop. Describing the open-source software and the methodology step by step, we expect to make it available for county workers in areas attained by wildfires, where a quick response is much needed, as the availability of information is essential for the immediate planning of mitigation measures, such as restoring road access, allocate funds for the recovery of human dwellings and assess further restoration of the ecological system. The example used is a succession of wild

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M., C. Proença. "On the Need of Quick Monitoring for Wildfire Response from City Halls." Indian Journal of Image Processing and Recognition (IJIPR) 2, no. 3 (2022): 1–4. https://doi.org/10.54105/ijipr.C1014.042322.

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<strong>Abstract: </strong>This case study shows that the assessment of burned areas can be done with remote sensing data free of charges in a simple laptop. Describing the open-source software and the methodology step by step, we expect to make it available for county workers in areas attained by wildfires, where a quick response is much needed, as the availability of information is essential for the immediate planning of mitigation measures, such as restoring road access, allocate funds for the recovery of human dwellings and assess further restoration of the ecological system. The example u

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Proença, M. C. "Wildfires Assessed by Remote Sense Images and Burned Land Monitoring." International Journal of Biological and Ecological Engineering 16, no. 3 (2022): 22–26. https://doi.org/10.5281/zenodo.7473634.

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The tools described in this paper enable the location of burned areas where took place the annihilation of natural habitats and establishes a baseline for major changes in forest ecosystems during recovery. Moreover, the result allows the follow up of the surface fuel loading, allowing the evaluation and guidance of restoration measures to remote areas by phased time planning. This case study implements the evaluation of burned areas that suffered successive wildfires in Portugal mainland during the summer of 2017, killing more than 60 people. The goal is to show that this evaluation can be do

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Proença, M. C. "Wildfires assessed by remote sense images and burned land monitoring." International Journal of Biological and Ecological Engineering 16, no. 3 (2022): 22–26. https://doi.org/10.5281/zenodo.7487074.

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The tools described in this paper enable the location of burned areas where took place the annihilation of natural habitats and establishes a baseline for major changes in forest ecosystems during recovery. Moreover, the result allows the follow up of the surface fuel loading, allowing the evaluation and guidance of restoration measures to remote areas by phased time planning. This case study implements the evaluation of burned areas that suffered successive wildfires in Portugal mainland during the summer of 2017, killing more than 60 people. The goal is to show that this evaluation can be do

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Škvor, Pavel, Martin Jankovský, Pavel Natov, Jiří Dvořák, and Karel Zlatuška. "The Effect of Different Road Types on Timber Truck Drivers by Assessing the Load Environment of Drivers by Monitoring Changes in Muscle Tension." Forests 13, no. 10 (2022): 1565. http://dx.doi.org/10.3390/f13101565.

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Our research aimed to quantify stress load in drivers by monitoring the load on the radial extensor carpi radialis (musculus extensor carpi radialis) on different types of forest and other categories of roads. We observed changes in the electrical potential of skeletal muscles using electromyographic measurements and changes in heart rate using a Biofeedback2000 x-pert recorder. We measured the loading of drivers during the normal operation of timber trucks and timber trucks with trailers, while the reference measurements took place in a passenger car. We obtained descriptive statistics from t

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Radwan, Mostafa M., Sundus A. Faris, Ahmed Y. Barakat, and Ahmad Mousa. "Distress-Based Pavement Condition Assessment Using Artificial Intelligence: A Case Study of Egyptian Roads." Eng 6, no. 6 (2025): 114. https://doi.org/10.3390/eng6060114.

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The pavement is a complex construction subject to a range of environmental and loading conditions. Transportation organizations use pavement management systems (PMSs) to maintain satisfactory pavement performance. The pavement condition index (PCI) is a commonly used performance indicator, yet PCI evaluation is costly and time-consuming. Machine and deep learning algorithms have recently been more instrumental for forecasting pavement conditions. This research uses AI tools to develop a correlation between PCI and collected distress in urban road networks. The distresses for 15,000 pavement se

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Mușat, Elena-Camelia, and Ioan Bitir. "Evaluating the Forest Road Systems Subjected to Different Loadings by Using the Finite Element Method." Forests 13, no. 11 (2022): 1872. http://dx.doi.org/10.3390/f13111872.

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In the actual context, in which there is a trend of increasing the weight of the vehicles used to transport materials, checking the deformations of road systems as a response to dynamic and static loadings is necessary to better manage the road infrastructure. The goal of the study was to evaluate how the number and the thickness of layers, and the material types could influence the behavior of the road systems subjected to different loads, and to find out which of the road systems have the smallest deformations. The Romania forest roads are classified into three categories, and the most impor

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Antobre, Osei Owusu, Akwasi Duah-Gyamfi, Winston Adams Asante, Collins Ayine Nsor, Boateng Kyereh, and Joseph Anokye. "Rehabilitation of loading bays after selective logging at the Pra-Anum forest reserve, Ghana." Sustainable Forestry 8, no. 1 (2025): 11499. https://doi.org/10.24294/sf11499.

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The exploitation of timber has had a profound impact on tropical forest areas and their structures. This study assessed the effect of selective logging on natural regeneration and soil characteristics in post-loading bay sites at the Pra-Anum forest reserve in Ghana, West Africa. The results showed no difference in the number of species enumerated in the loading bays and the undisturbed area. More trees were observed in the RAT and RNT plots than in the undisturbed area. Relative to the RAT plot, species on the RNT and the undisturbed area were less diverse and less evenly distributed. Mean tr

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Ševelová, Lenka, Aleš Florian, and Jaroslav Žák. "Influence of Plunger Stress on Resilient Modulus of Forest Subgrade Soils Obtained from Cyclic CBR Test." Forests 12, no. 11 (2021): 1456. http://dx.doi.org/10.3390/f12111456.

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The low load-bearing capacity of subgrade soils is typical for forest roads. For the determination of the resilient modulus Mr of unbound natural as well as recycled materials, a laboratory triaxial test with cyclic loading is generally preferred. For low volume roads, including forest roads, an alternative method of the cyclic CBR test, which uses standard CBR devices for repeated loading, is being tested and applied in practice. For forest subgrade soils, the procedure for determining the modulus Mr based on cyclic loading of the specimen to a constant penetration depth of 2.54 mm was verifi

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Nugroho, Pipit Wahyu, and Mochamad Muzaki. "Pemodelan Suspensi Kendaraan Dalam Tinjauan Multi Derajat Kebebasan." Jurnal Energi dan Teknologi Manufaktur (JETM) 4, no. 02 (2021): 1–6. http://dx.doi.org/10.33795/jetm.v4i02.78.

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The two most important parameters in vehicle vibration are the level of comfort and stability. To get the best value from that parameter, the vehicle suspension system is very important to reduce vibration due to road waves and keep the wheels attached to the road. This paper studied the effect of the type of suspension on the vibration of a one-wheeled vehicle in terms of comfort and stability. The type of suspension is related to the value of the spring stiffness and the damping. While the vehicle is modeled with one wheel in two degrees of freedom. The test is carried out by loading the veh

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Rodgers, M., G. Hayes, and M. G. Healy. "Cyclic loading tests on sandstone and limestone shale aggregates used in unbound forest roads." Construction and Building Materials 23, no. 6 (2009): 2421–27. http://dx.doi.org/10.1016/j.conbuildmat.2008.10.007.

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Posmetev, Valeriy, Vadim Nikonov, Viktor Posmetev, and Aleksey Matyashov. "IMPROVEMENT OF THE ENERGY RECOVERY SYSTEM OF A TIMBER TRACTOR WITH A LUMBER TRUCK." Forestry Engineering Journal 11, no. 2 (2021): 149–65. http://dx.doi.org/10.34220/issn.2222-7962/2021.2/14.

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The place of road transport in logging production has been considered. The main advantages of using timber tractors with timber drags in comparison with other layout schemes of timber road trains have been described. Conse-quences of dynamic loads acting on the pivot of the turning bunk of a timber-carrying area from frequent braking of a timber tractor with a timber drag have been given. Based on the analysis of scientific works of foreign scientists, the promising direction of research in the field of recuperation of various types of energy in road transport is substantiated, which makes it

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Miroshnyk, Nataliia, Tetiana Grabovska, Marina Mazura, and Igor Teslenko. "Bioindication of megalopolis park ecosystems under aerotechnogenic loading." Folia Forestalia Polonica 64, no. 1 (2022): 15–37. http://dx.doi.org/10.2478/ffp-2022-0003.

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Abstract This study focuses on the influence of motor transport on various indicators of park ecosystems and Taraxacum officinale Web., as well as on their applicability to the bioindication of the urban environments in the largest megalopolis of Ukraine, namely, Kyiv. Our investigations were carried out in 14 park ecosystems exposed to different levels of aerotechnogenic loading: low pollution level in Pushcha-Vodytsya (park) and outskirts, average pollution level alongseven roads with medium traffic and high pollution level along eight highways. Pollen indication, integration and statistical

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Ardy Raeisandha, Iswandaru, and Dudi Nasrudin Usman. "Pengaruh Geometri Jalan terhadap Produktivitas Pengupasan Overburden PT PSA, Kalimantan Timur." Bandung Conference Series: Mining Engineering 5, no. 1 (2025): 1–8. https://doi.org/10.29313/bcsme.v5i1.16380.

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Abstract. This mining road geometry study research refers to the Minister of Energy and Mineral Resources Decree No. 1827/K/30/MEM/2018 and the American Association of State Highway and Transportation Officials. The surrounding environment consists of oil palm plantation areas and forests. Access to the location is quite difficult because the roads entering the mining area are not paved, especially when it rains. Based on the problems found at PT Pancaran Surya Abadi in the B1 Block A1-1 east pit, namely there are road conditions that do not meet regulatory standards, so that the production ta

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Ferguson, R. I., and T. A. Stott. "Forestry effects on suspended sediment and bedload yields in the Balquhidder catchments, Central Scotland." Transactions of the Royal Society of Edinburgh: Earth Sciences 78, no. 4 (1987): 379–84. http://dx.doi.org/10.1017/s0263593300011317.

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ABSTRACTOutputs of suspended sediment and bedload from the 7·7 km2 moorland Monachyle basin and the 6·8 km2, 40%-forested Kirkton basin near Balquhidder, and inputs from tributary streams and mainstream bank erosion, are compared. Sediment yield is about three times higher in the forested basin and varies more sensitively with streamflow, suggesting greater availability of erodible sediment. The output is predominantly of suspended sediment and is derived mainly from tributary streams. Initial observations following partial moorland ploughing and forest clearfelling in 1986 indicate that erosi

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Anderson, Christopher J., and B. Graeme Lockaby. "The Effectiveness of Forestry Best Management Practices for Sediment Control in the Southeastern United States: A Literature Review." Southern Journal of Applied Forestry 35, no. 4 (2011): 170–77. http://dx.doi.org/10.1093/sjaf/35.4.170.

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Abstract Water quality from forested watersheds (both managed and unmanaged) is normally very good and better than most other human-dominated land uses. Water degradation is possible during forestry operations; however, the use of best management practices (BMP) has been shown to substantially reduce the risk. In the southeastern United States, forests are managed under a wide range of conditions reflective of physiographic region, soil erodibility, climate, and site wetness. Although it is clear that BMP reduce sediment and pollutant loading into streams, there is less information regarding h

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Шевцова, Irina Shevtsova, Солопанов та ін. "The possibility and validity of the improved design of the machine for uprooting stumps ЛП–52 in conditions of forest complex". Forestry Engineering Journal 4, № 1 (2014): 173–78. http://dx.doi.org/10.12737/3365.

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Ripping three-tooth working equipment with individual drive of each tooth is hung instead of rear outriggers and also performs their function during loading and unloading operations. Hitching of this machine with such work equipment is quite reasonably, as it significantly expands the scope of its application during the preparatory and excavation works during the construction of logging roads. Thus the possibility and validity of such improvements to the car is clearly defined, and even there is a technological scheme of performance of its excavation in the construction of embankments from the

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Kimeichuk, I., O. Tkachuk, and O. Sytnyk. "Impact of forest exploitation on soil stability in the Ukrainian Carpathians and ways to improve it." Agrobìologìâ, no. 2(191) (November 28, 2024): 79–95. https://doi.org/10.33245/2310-9270-2024-191-2-79-95.

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Evaluation of erosion processes occurring during logging is of great importance for a balanced approach to the use of natural resources and forest ecosystems preservation. The article evaluates erosion processes during logging in the Ukrainian Carpathians. The influence of mountain topography on the risks of erosion and pollution of water streams due to the high steepness of the slopes and the need for specialized equipment for logging operations was analyzed. The need for measures to minimize the impact of logging on the natural environment of mountain regions has been substantiated. The stud

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Hildt, Eduardo, Andrés Leszczuk, Patricio Mac Donagh, and Tomás Schlichter. "Time Consumption Analysis of Forwarder Activities in Thinning." Croatian journal of forest engineering 41, no. 1 (2019): 13–24. http://dx.doi.org/10.5552/crojfe.2020.615.

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Forwarding can be divided into separate work elements. These are affected by several factors: forwarding distance, load volume, and types of assortments harvested. For a detailed planning of thinning, productivity models should include these factors. This study analysed the time consumption of forwarder thinning operations in five pine plantations in the north-east of Argentina, determining how the log size and log concentration affect each work element. Time-and-motion studies were carried out, recording the activities with digital video cameras, and tracking the forwarder movements with glob

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Berg, Simon, Back Tomas Ersson, and Jussi Manner. "Distance driven and driving speed when forwarding during final felling in Central Sweden." Journal of Forest Science 65, No. 5 (2019): 183–94. http://dx.doi.org/10.17221/23/2019-jfs.

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Factors affecting forwarding work are interesting because they can be used to better optimize forwarding routes and to predict costs. The main objective of this study was to investigate the association between driving speed and driving distance when forwarding. Data was automatically collected during 2.5 years from two large forwarders operating during final felling in central Sweden. Driving speeds for the work tasks Driving unloaded, Loading drive and Driving loaded were analysed using correlation, least-squares regression, and quantile regression. The results showed that speed and distance

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Pankaj, Kumar Kanojia, Kapil Soni Prof., and Sharad Kumar Soni Dr. "STUDY OF A CABLE STAYED BRIDGE CONSIDERING DIFFERENT ARRANGEMENTS OF PYLON CONSIDERING I.R.C." International Journal For Technological Research In Engineering 9, no. 11 (2022): 13–16. https://doi.org/10.5281/zenodo.6883857.

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Bridge is an important structure required for the transportation network. Now a day with the fast innovation in technology the conventional bridges have been replaced by the cost effective structured system. For analysis and design of these bridges the most efficient methods are available. Different methods which can be used for analysis and design are AASHTO, Finite element method, Grillage and Finite strip method. In this Project work, live project of Raja Bhoj Setu, Bhopal is considered. It is located at V.I.P. road. It has been designed, constructed considering details and hydraulic data a

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Cabral, Oscar Manuel de Jesús Vera, Eduardo da Silva Lopes, Carla Krulikowski Rodrigues, and Afonso Figueiredo Filho. "Impact of Distance between Strip Roads on Productivity and Costs of a Forwarder in Commercial Thinning of Pinus Taeda Stands." Croatian journal of forest engineering 41, no. 2 (2020): 243–49. http://dx.doi.org/10.5552/crojfe.2020.592.

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Demand for higher value-added wood products stimulates research for new, mainly mechanized, thinning operations in order to increase productivity and reduce production costs. In this context, the aim of this study was to evaluate the impact of distance between strip roads on forwarder productivity and costs of thinning operations in Pinus taeda stands. The study was carried out in 10-year-old Pinus taeda stands located in Parana State, Brazil. Two thinning methods were evaluated: (1) TH5: systematic harvest in every fifth tree row and selective harvest in adjacent rows; and (2) TH7: systematic

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Ning, Jibin, Hui Liu, Wennan Yu, et al. "Comparison of Different Models to Simulate Forest Fire Spread: A Case Study." Forests 15, no. 3 (2024): 563. http://dx.doi.org/10.3390/f15030563.

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With the development of computer technology, forest fire spread simulation using computers has gradually developed. According to the existing research on forest fire spread, the models established in various countries have typical regional characteristics. A fire spread model established in a specific region is only suitable for the local area, and there is still a great deal of uncertainty as to whether or not the established model is suitable for fire spread simulation for the same fuel in other regions. Although many fire spread models have been established, the fuel characteristics applica

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Syphard, Alexandra D., Volker C. Radeloff, Nicholas S. Keuler, et al. "Predicting spatial patterns of fire on a southern California landscape." International Journal of Wildland Fire 17, no. 5 (2008): 602. http://dx.doi.org/10.1071/wf07087.

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Humans influence the frequency and spatial pattern of fire and contribute to altered fire regimes, but fuel loading is often the only factor considered when planning management activities to reduce fire hazard. Understanding both the human and biophysical landscape characteristics that explain how fire patterns vary should help to identify where fire is most likely to threaten values at risk. We used human and biophysical explanatory variables to model and map the spatial patterns of both fire ignitions and fire frequency in the Santa Monica Mountains, a human-dominated southern California lan

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Lyons, C. Kevin, and Ken Day. "Biodegradable roads." Journal of Ecosystems and Management, February 13, 2008. http://dx.doi.org/10.22230/jem.2008v9n1a385.

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This project assessed whether mulching windrows of waste wood from right-of-way logging could produce an all-weather road surface for in-block roads. Three in-block spur roads in the Alex Fraser Research Forest at Williams Lake, B.C., were divided into three 50-m sections with: (1) waste wood collected from a 40 m right-of-way, (2) waste wood collected from a 20 m right-of-way, and (3) no waste wood. A gravel truck was loaded to produce drive axle loads similar to a loaded logging truck and was used in the cyclic loading of the test road. The mulched wood roads clearly out-performed the soil r

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Othman, M. S., and Z. Ahmad. "Dynamic Energy Absorption Performances of Rain Forest Vehicle (RFV) under Frontal Impact." Jurnal Teknologi 67, no. 3 (2014). http://dx.doi.org/10.11113/jt.v67.2775.

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This paper treats the crash analysis and energy absorption response of Rain Forest Vehicle (RFV) subjected to frontal impact scenario namely impacting rigid wall and column. Dynamic computer simulation techniques validated by experimental testing are used to carry out a crash analysis of such vehicle. The study aims at quantifying the energy absorption capability of frontal section of RFV under impact loading, for variations in the load transfer paths and geometry of the crashworthy components. It is evident that the proposed design of the RFV frontal section are desirable as primary impact en

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Othman, M. S., and Z. Ahmad. "Dynamic Energy Absorption Performances of Rain Forest Vehicle (RFV) under Frontal Impact." Jurnal Teknologi 69, no. 3 (2014). http://dx.doi.org/10.11113/jt.v69.3153.

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This paper treats the crash analysis and energy absorption response of Rain Forest Vehicle (RFV) subjected to frontal impact scenario namely impacting rigid wall and column. Dynamic computer simulation techniques validated by experimental testing are used to carry out a crash analysis of such vehicle. The study aims at quantifying the energy absorption capability of frontal section of RFV under impact loading, for variations in the load transfer paths and geometry of the crashworthy components. It is evident that the proposed design of the RFV frontal section are desirable as primary impact en

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Li, Songyu, and Håkan Lideskog. "Realization of Autonomous Detection, Positioning and Angle Estimation of Harvested Logs." Croatian journal of forest engineering 44, no. 2 (2023). http://dx.doi.org/10.5552/crojfe.2023.2056.

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To further develop forest production, higher automation of forest operations is required. Such endeavour promotes research on unmanned forest machines. Designing unmanned forest machines that exercise forwarding requires an understanding of positioning and angle estimations of logs after cutting and delimbing have been conducted, as support for subsequent crane loading work. This study aims to improve the automation of the forwarding operation and presents a system to realize real-time automatic detection, positioning, and angle estimation of harvested logs implemented on an existing unmanned

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Chen, Chunjiang, Yongze Song, Wenbo Lv, et al. "Predicting pavement cracking performance using laser scanning and geocomplexity‐enhanced machine learning." Computer-Aided Civil and Infrastructure Engineering, April 19, 2025. https://doi.org/10.1111/mice.13489.

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AbstractTransport infrastructure is vulnerable to crack formation and deterioration due to aging and repetitive loading. Accurate and timely crack assessment and prediction are crucial for effective road maintenance, but existing studies often rely on individual indicators such as crack types, attributes, and severity, which fail to capture the full complexity of crack deterioration. Furthermore, limited research has explored the long‐term impacts of traffic, socioeconomic, and climate changes on crack progression, and existing machine learning (ML) models struggle to explain the contributions

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Lacowicz, Pedro Giovani, Ricardo Berger, Romano Timofeiczyk Júnior, and João Carlos Garzel Leodoro Da Silva. "MINIMIZAÇÃO DOS CUSTOS DE TRANSPORTES RODOVIÁRIO FLORESTAL COM O USO DA PROGRAMAÇÃO LINEAR E OTIMIZAÇÃO DO PROCESSO." FLORESTA 32, no. 1 (2002). http://dx.doi.org/10.5380/rf.v32i1.2350.

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Este trabalho tratou da minimização dos custos do transporte rodoviário florestal, através da programação linear inteira e otimização dos tempos de ciclo de transporte. Após a obtenção dos dados de uma empresa florestal, foram elaborados três cenários, quais sejam: Cenário I: levantamento do quadro atual da empresa, como subsídio comparativo após a racionalização e otimização das etapas que mais consomem tempo do ciclo; Cenário II: realizada em função do uso da programação linear, juntamente com a racionalização dos tempos de fila de espera para carga e descarga; Cenário III: além da programaç

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Škvor, Pavel, Martin Jankovský, Pavel Natov, and Jiří Dvořák. "Evaluation of stress loading for logging truck drivers by monitoring changes in muscle tension during a work shift." Silva Fennica 57, no. 1 (2023). http://dx.doi.org/10.14214/sf.10709.

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Our research aimed to quantify and evaluate the stress loading of drivers by monitoring the loading of the radial extensor muscle at the wrist joint (musculus extensor carpi radialis) when they drove different types of timber trucks. We monitored changes in the electric potential of skeletal muscles with electromyographic measurements and measurements of changes of heart rate using the Biofeedback 2000 x-pert device. The drivers were observed throughout their work shifts during normal operation of logging trucks and logging trucks with trailers. As a reference, muscle load was measured when dr

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Martins, Catarina, Joaquim Macedo, and Margarida Pinho-Lopes. "Geocells for Unpaved Roads: Analysis of Design Methods from the Literature." International Journal of Geosynthetics and Ground Engineering 10, no. 3 (2024). http://dx.doi.org/10.1007/s40891-024-00552-4.

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AbstractMost forest roads are unpaved, connecting rural and forest areas and enabling access for firefighting and commercial purposes. Low traffic levels lead to reduced functional demands, while rapid development of deformations results in frequent maintenance. Using geocells as reinforcements reduces deformations, minimizing maintenance needs. Herein, geocell-reinforced soil design methods were collected and categorized based on their result: increase in confining pressure; bearing capacity; height of the base layer. The goal was to compare methods reported in the literature, from a user per

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