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Journal articles on the topic 'Jacking'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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1

Yang, Xian, Yang Liu, and Chao Yang. "Research on the Slurry for Long-Distance Large-Diameter Pipe Jacking in Expansive Soil." Advances in Civil Engineering 2018 (October 14, 2018): 1–9. http://dx.doi.org/10.1155/2018/9040471.

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When the pipe jacking technology is applied in expansive formation, the soil around the pipe will easily absorb water from the slurry and expand to wrap up the pipe, producing an excessive pipe jacking force. A water-based slurry formula suitable for pipe jacking in expansive soil layer was proposed in this paper. Firstly, the key design points of pipe jacking slurry in expansive soil were put forward. Secondly, plant glue, potassium humate, Na-CMC, and graphite powder were chosen as treating agents to improve the slurry performance. The effect of addition levels of different treating agents o

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2

Chen, Jian Zhong, and Zhuo Qiu Li. "Study on the Effect of Different Joints Material on GRP Jacking Pipe." Applied Mechanics and Materials 117-119 (October 2011): 995–98. http://dx.doi.org/10.4028/www.scientific.net/amm.117-119.995.

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GRP (Glass fiber reinforced plastics) jacking pipe has many advantages, such as lightweight, high strength, corrosion resistance, long life, good hydraulic and so on. The key of GRP jacking pipe is the joints problem. There are two different joints material in GRP jacking pipe: GRP ring and steel ring. The effect of different joints material on the GRP jacking pipe is analyzed by ABAQUS. When the jacking pipe with jacking force, the deflection angle of the pipeline has significant effect on joints force, even if the 0.05° of deflection, the pipe axial compression stress will double. When the j

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3

Hui, Liu. "Challenges in a Long-Distance Pipe Jacking and Solutions in China." Key Engineering Materials 480-481 (June 2011): 1260–65. http://dx.doi.org/10.4028/www.scientific.net/kem.480-481.1260.

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Pipe jacking, for its incomparable technical superiority, has been gaining wider and wider application in municipal construction project. However, there are many difficulties in terms of construction techniques and the long-distance pipe jacking is one of the most complicated. This paper, with the case history of the first and second stage of the sewage disposal project in Chongqing, presented the comparison and selection for the optimal construction scheme of long-distance pipe jacking, the installation techniques of pipe-jacking equipments, pipe-jacking construction method, technical challen

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4

Zhang, Chao, Qi Jun Jia, Ri Qing Xu, and Su Yang Feng. "Prediction of Surface Subsidence Caused by Rectangular Pipe Jacking Construction." E3S Web of Conferences 38 (2018): 03024. http://dx.doi.org/10.1051/e3sconf/20183803024.

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Based on the development of rectangular pipe jacking, the characteristics of rectangular pipe jacking are introduced. The difference between surface settlements caused by rectangular pipe jacking is calculated by stochastic medium method and peck formula method. The influence of section shape on rectangular pipe jacking is analyzed. The results show that the calculation results of the stochastic medium method are more reasonable.

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5

NISHIKAWA, Kazuyoshi, Akihiko SUZUKI, Masaki TANAKA, Hiroshi MIKAMI, Jiro KONDO, and Akira KAWAI. "CURVE JACKING OF PRE-STRESSED CONCRETE HALVED JACKING PIPES." Doboku Gakkai Ronbunshu, no. 798 (2005): 137–55. http://dx.doi.org/10.2208/jscej.2005.798_137.

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6

Fu, Su Juan, Wan Ming Qiang, Xu Guang Li, and Shang Fei Li. "The Study on Jacking and Monitor Points Arrangement in Jack-Up Engineering." Advanced Materials Research 1030-1032 (September 2014): 1041–45. http://dx.doi.org/10.4028/www.scientific.net/amr.1030-1032.1041.

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Taking Yuzhen Palace of Wudang Mountain integrally jack-up engineering for instance, the paper analyzes the stress change of the joist in different of jacking and monitor point arrangement using finite element method. By changing the distance and the number of jacking points, the stress distribution of joist is analyzed, so that it concludes a reasonable layout scheme. And the results show that: the jacking and monitor points position have an influence on the stress of joist in the process of jack-up. Reasonable arrangement of jacking and monitor points could effectively reduce the additional

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7

Bao, Xian Kai, and Li Juan Liang. "Numerical Modeling Research of Rectangle Pipe-Jacking Construction." Applied Mechanics and Materials 578-579 (July 2014): 921–24. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.921.

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Combined with the city of Baotou Arden Street underground passage pipe jacking engineering, using three-dimensional finite element software ANSYS to simulate the process of rectangular pipe jacking construction, this paper will emphasis on the influence of soil displacement around the construction site of the rectangular pipe jacking construction under dynamic loads. Through research, it got the rectangular pipe jacking construction sphere of influence of soil disturbance, and the variation in both horizontal and vertical direction, and compared with the measured data, proved that the numerica

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8

Xia, Hong Bing, Yi Jun Zhang, Hui Li, and Bao Yan. "Research on the Anchor of Inside-Soil-Opened Umbrella Type & Its Jacking Force." Advanced Materials Research 663 (February 2013): 215–18. http://dx.doi.org/10.4028/www.scientific.net/amr.663.215.

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The existing soil anchor of steel strand encapsulated by cement has many disadvantages such as longer anchorage length, more construction process and not timely bearing load. Contrary to the existing soil anchor, the anchor of inside-soil-opened umbrella type has lots of advantages: simple structure, convenient construction, high bearing capacity, timely anchoring soil. This paper has analyzed the principle of anchorage and jacking force of the soil anchor, also given the estimated equation of the jacking force. The result of experiment shows that the change of the dragging force is not obviou

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9

Yang, Zhuan Yun. "Feasibility Analysis and Status of Shallow Pipe-Jacking Technology in Urban Drainage Systems." Key Engineering Materials 480-481 (June 2011): 1278–82. http://dx.doi.org/10.4028/www.scientific.net/kem.480-481.1278.

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Considering the current domestic situation that there is no provision for shallow pipe-jacking (with overburden soil layer not thicker than 3 m and 1.5 times of the pipe external diameter) in the existing water supply and drainage pipeline engineering design and construction specifications, a comprehensive analysis and discussion, based on the actual domestic condition, is made on the feasibility of shallow pipe-jacking technology in urban drainage systems. The problems confronting the shallow pipe-jacking technology theory research are also analyzed and the research status of shallow curve pi

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10

Sun, Yang, and Zheng Liang Xu. "Analysis of Soil Disturbance Caused by Pipe Jacking Construction." Applied Mechanics and Materials 166-169 (May 2012): 1480–83. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.1480.

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Open caisson is one of the common used structures, as a working shaft in pipe jacking project. Disturbance of the soil behind the reaction wall of open caisson (SBRWOC) will reduce the efficiency of jacking, and affect safety of site operation and control. However, there are few studies on disturbance of SBRWOC. In this paper, combining the project of parallel pipe jacking passing under the Guan River in Jiangsu Province, China, field monitoring of SBRWOC is carried out during pipe jacking construction, including earth pressure and lateral displacement of SBRWOC. The maximum lateral displaceme

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11

Wei, Xin-Jiang, Xiao Wang, Gang Wei, Cheng-Wei Zhu, and Yu Shi. "Prediction of Jacking Force in Vertical Tunneling Projects Based on Neuro-Genetic Models." Journal of Marine Science and Engineering 9, no. 1 (2021): 71. http://dx.doi.org/10.3390/jmse9010071.

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The vertical tunneling method is an emerging technique to build sewage inlets or outlets in constructed horizontal tunnels. The jacking force used to drive the standpipes upward is an essential factor during the construction process. This study aims to predict the jacking forces during the vertical tunneling construction process through two intelligence systems, namely, artificial neural networks (ANNs) and hybrid genetic algorithm optimized ANNs (GA-ANNs). In this paper, the Beihai hydraulic tunnel constructed by the vertical tunneling method in China is introduced, and the direct shear tests

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12

Deng, Wenjie, Guangyong Cao, Jian Lin, Junfeng Yang, Shixiang Yu, and Zubing Yang. "Selection of jacking sequence and jacking parameter analysis of multi-row jacking pipes in water-rich sand." IOP Conference Series: Earth and Environmental Science 643 (January 26, 2021): 012094. http://dx.doi.org/10.1088/1755-1315/643/1/012094.

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13

Yen, J., and K. Shou. "Numerical simulation for the estimation the jacking force of pipe jacking." Tunnelling and Underground Space Technology 49 (June 2015): 218–29. http://dx.doi.org/10.1016/j.tust.2015.04.018.

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14

Yang, Zhuan Yun. "Key-Points of Construction Techniques for Concrete Pipe-Jacking Tunnel." Key Engineering Materials 480-481 (June 2011): 1271–77. http://dx.doi.org/10.4028/www.scientific.net/kem.480-481.1271.

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As a trenchless technology for buried pipeline, pipe-jacking tunnel technology is increasingly displaying the enormous superior in buried pipeline remodeling in city. Combining characteristics of pipe-jacking tunnel, this paper analyzed key-points of construction technology and engineering troubles which occurrence possibly in construction, and introduced some treatment measures. This paper is also sum-up of pipe-jacking construction many years, maybe provide some help for the same kind of construction.

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15

Hui, Liu. "Construction Technology of Shallow Pipe- Jacking Working Shaft." Key Engineering Materials 480-481 (June 2011): 1266–70. http://dx.doi.org/10.4028/www.scientific.net/kem.480-481.1266.

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During the pipe jacking construction, the bearing plates of jack need the support of great reactive force which is provided by the side-wall of the working shaft and the soil mass behind the wall. In the shallow pipe-jacking working shaft, the soil mass only can provide limited reactive force due to the small height of the soil mass behind the side-wall, which becomes the difficult point in the design and construction of the shallow pipe-jacking working shaft. This thesis takes the actual projects for the examples to introduce the construction technology of shallow pipe-jacking working shaft i

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16

Zhang, Wei Xi, Ping Chen, Dong Zhao, and Yan Qiang Zhang. "A New Technique and its Application in the Conservation of Historical Masonry Constructions - Underpinning by Manual Pipe-Jacking." Advanced Materials Research 133-134 (October 2010): 1077–82. http://dx.doi.org/10.4028/www.scientific.net/amr.133-134.1077.

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The structural damages, which result from the inadequate bearing capacity or the asymmetric support of foundation, are one of the crucial works in the conservation of historical masonry constructions. Firstly ,the box girders are slowly and evenly jacked by the manual pipe jacking technique ,and then casting the core beam to form a whole, so the construction is gradually situated on a "tray" with sufficient rigidity. Consequently, the structural damages caused by the inadequate bearing capacity or the asymmetric support of foundation is thoroughly treated. Based on the field test, the principl

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17

Wan, Tao, Shu Juan Xi, and Xiu Mei Jin. "Research on Closure Jacking Forces of Continuous Multi-Span Rigid Frame Bridge." Applied Mechanics and Materials 204-208 (October 2012): 2205–8. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.2205.

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After continuous multi-span rigid-frame bridge is closed up, long-term creep and shrinkage of concrete induce unfavorable effect on deformation and internal forces of main girder and piers. Imposing some horizontal jacking forces at closure stages is the key steps to ensure construction quality. Taking Mayinghe Bridge as study objective, main factors determining the jacking force value are analyzed. The deformation and internal forces at construction stage and operational stage of the bridge are calculated through FE method when different jacking force combination is applied at closure stage.

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18

Tian, Zhong Chu, Wen Ping Peng, and Chao Zhou. "High-Temperature Closure Control Technology of Concrete Arch Bridge Using Cable-Stayed Buckle and Cantilever Construction Method." Applied Mechanics and Materials 638-640 (September 2014): 1032–37. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.1032.

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The problem of high temperature closure of concrete arch bridge using cable-stayed buckle and cantilever method was resolved by pre-jacking force and counterweight in the arch rib closure port. The arch closure status effect of temperature difference was error array, the unit pre-jacking force and unit counterweight were impact parameter array. The impact matrix was the arch closure status effect of unit pre-jacking force or unit counterweight. The matrix equation was established on the error and the impact of parameters. Then, the pre-jacking force and additional counterweight value were solv

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19

Zhang, Wei Xi, and Yong Tao Liu. "Study on the Jacking Force of the Underpinning by Pipe-Jacking for the Historical Masonry Constructions." Advanced Materials Research 368-373 (October 2011): 2473–77. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.2473.

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The structural damages, which result from the inadequate bearing capacity or the asymmetric support of foundation, are one of the crucial works in the conservation of historical masonry constructions. A new underpinning technique, applying the principle of pipe-jacking, is presented in this paper, which can build a new foundation system having sufficient rigidity under the bearing wall of the upper building. The technique has been successfully used in the conservation practices of masonry constructions, but the basic problems involved in the technique has not yet studied. Based on the field te

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20

Hu, Da, Yongsuo Li, Xiaoqiang Liang, Youping Wu, Sheng Zhang, and Qi Yao. "Analysis and Prediction of Pavement Settlement Caused by Jacking Construction of Ultra-Shallow Rectangular Shield Frame Bridge." Mathematical Problems in Engineering 2020 (October 28, 2020): 1–14. http://dx.doi.org/10.1155/2020/9624927.

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The primary purpose of this paper is to analyze and predict the ground settlement law of large-span rectangular shield frame bridge jacking project, to provide a reference for the optimization design and safe construction of similar projects. In this paper, combined with the jacking project of ultra-shallow buried soft soil layer rectangular shield frame bridge, through the on-site monitoring, the settlement deformation law of the longitudinal and transverse sections of the expressway pavement during the jacking construction process is discussed, and the reasons for the large settlement and re

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21

Wang, Changbai, Jimin Liu, Hua Cheng, and Haibing Cai. "Disturbance Effect of Pipe Jacking Group Adjacent Excavation on Surrounding Soil." Advances in Civil Engineering 2021 (April 23, 2021): 1–21. http://dx.doi.org/10.1155/2021/5533952.

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Under the modern and complicated urban environment, clarifying the interaction mechanism and mutual influence mechanism between the urban tunnel and the surrounding environment is of considerable significance to the construction and operation of the tunnel. To understand and grasp the excavation-induced disturbance range and mechanism of adjacent pipeline jacking group on surrounding soils, this paper carries out relevant researches. Based on a case history of a three-hole parallel adjacent jacking pipeline in shallow overburden, a field test and assessment are performed. By setting monitoring

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22

Stix, Gary. "Jacking into the Brain." Scientific American 299, no. 5 (2008): 56–61. http://dx.doi.org/10.1038/scientificamerican1108-56.

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23

Wang, Fan, Sheng Hao Mo, and Zhi Feng Luo. "Resist the Wind Load of Jacking System in High Buildings." Applied Mechanics and Materials 578-579 (July 2014): 572–75. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.572.

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When the crane can’t work for the altitude of the high buildings, we can consider about the jacking system. Jacking system include some steel truss, a steel platform, some steel columns and so on. The steel platform is nearly the area with the concrete core tube, it provides a place for workers to wrap the rebar, to pure the concrete. This article combine the real engineering, detailing introduce when the jacking system meet a big wind load, how does it morph, and compare the margin with the code in China.

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24

Shan, Rong Xiang, and Yu Hui Shan. "The Confirmation of Closure Jacking Force in Continuous Rigid Frame Bridge." Applied Mechanics and Materials 638-640 (September 2014): 987–93. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.987.

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The theory deduces the formula of closure jacking force in the closure of mid-span in the continuous rigid bridge, and introduced the computation and accomplishment of jacking force in continuous rigid bridge, taking the example of Anwen Bridge.

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25

Yang, Zhuan Yun, and Li Yun Yi. "Situ Testing Study on Jacking Force of Manual Pipe-Jacking with Engineering." Advanced Materials Research 676 (March 2013): 70–75. http://dx.doi.org/10.4028/www.scientific.net/amr.676.70.

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Manual rectangle pipe-jacking technology is adopted to jack the pre-fabricated hollow box girder slowly and evenly into the load bearing wall of masonry structure, and then core beam is poured to form a whole, therefore, the constructions will be gradually located at a “tray” with enough rigidity, which solves the structural damage caused by inadequate bearing capacity of foundation soil or unsymmetrical support. In actual masonry structure protection, there have been successful examples where such technology is used, however, till now its related fundamental problems have not been researched

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26

Niu, Zelin, Yun Cheng, Yuwei Zhang, Zhanping Song, Guiyang Yang, and Hui Li. "A New Method for Predicting Ground Settlement Induced by Pipe Jacking Construction." Mathematical Problems in Engineering 2020 (May 7, 2020): 1–11. http://dx.doi.org/10.1155/2020/1681347.

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Pipe jacking technology has the advantages of fast construction speed, high economic benefit, and small impact on the urban environment, and mechanical vibration and mechanical soil interaction will lead to the settlement of upper part of pipe jacking and surrounding soil. So, the solution of soil settlement problem is of great significance for underground engineering construction. The soil loss, additional stress, and friction during the construction of rectangular pipe jacking are the main factors that cause the surface settlement. Aiming at the problem of surface settlement caused by pipe j

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27

Zhou, Ji Zhong, Ming Pi Liao, Jin Ping Zhuang, Qi Lin, and Xue Feng Cai. "Site Measurement of Modularized Low-Position Hydraulic Jacking Formwork System." Applied Mechanics and Materials 405-408 (September 2013): 3108–12. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.3108.

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Jacking formwork system has been widely used in the construction of tall buildings and modularized low-position jacking steel platform formwork system is made up of several assembled and turnover subsystems, including steel truss platform system, steel columns supporting system, formwork and rack system, two-way-acting hydraulic jack and its control system.The paper described the application of the system in Fuzhou Yu Yang Central Golden Plaza Project and construction site monitoring were conducted. According to the site monitoring result, the performance of the jacking formwork system is furt

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28

Yin, Can Bin, Fang Yu, and Min Jiang. "Research on Calculating Methods of Jacking Force with High Temperature Closure for Continuous Rigid-Frame Bridge." Advanced Materials Research 503-504 (April 2012): 1220–24. http://dx.doi.org/10.4028/www.scientific.net/amr.503-504.1220.

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When the continuous rigid frame bridge’s actual closure temperature is higher than the design closure temperature, the closure temperature’s difference will cause horizontal displacement at top of pier , and cause the structure to have the temperature intennal force. A horizontal jacking force is exerted to eliminate the adverse effect of closure temperature’s difference. One calculating method of jacking force is proposed in this paper: Eliminating the horizontal displacement at top of pier method. Taking the Longtan River Bridge as a practice example, the high closure temperature’s horizonta

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29

Malyshev, Oleg. "Bearing Capacity of T-Cross Section Piles in Sand." Civil and Environmental Engineering Reports 26, no. 3 (2017): 133–44. http://dx.doi.org/10.1515/ceer-2017-0041.

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Abstract This paper describes a series of pile tests in sand. T-cross and square cross section piles were jacking by static vertical load with a vibration. Special tests were carried out to examine the influence of T-cross section pile form on it bearing capacity, and the results of comparison bearing capacity on one cub meter of T-cross and square cross section jacking piles in the same ground conditions are described. The jacking vertical static load, sizes of displacements and compaction zones of a ground around a shaft of the experienced piles were investigated.

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30

Chen, Zhou, Quan Sheng Yan, Bu Yu Jia, and Xiao Lin Yu. "Large Span Continuous Girder Bridge Jacking Steel Hoop Stress Analysis." Advanced Materials Research 671-674 (March 2013): 991–95. http://dx.doi.org/10.4028/www.scientific.net/amr.671-674.991.

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Bridge jacking technology is a new technology in the field of old bridge reconstruction. Based on the case of Beijiang River Bridge jacking of Fokai highway extension engineering, the paper designs steel hoop as jacking force platform. By using ANSYS software, it makes finite element analysis and calculation as well as compares with the experimental data to check the reliability of models. In addition, the paper puts forward the optimization methods of steel hoop based on the analysis of the results. At last, it achieves the objective of saving materials and simplifying installation and use as

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31

Jin, Chun Fu, Peng Niu, Yong Sheng Zhao, and Xuan Wang. "Analysis and Control of Layer Deformation Induced by the Densely Arranged Large Diameter Underground Steel Tubes Jacking with NTR Method." Applied Mechanics and Materials 744-746 (March 2015): 1010–14. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.1010.

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Combined with the finite element method (FEM) and the field data of Shenyang Metro NTR engineering for pipe jacking process, the variation of surface deformation and influence factors of NTR construction are systematically analyzed. The result is shown that the curves of the lateral surface subsidence produced by pipe jacking process are accord with the normal distribution curves put forward by Peck .When the top steel pipes are jacked , the surface subsidence develops rapidly and the rate of deformation is larger. In addition , grouting behind the wall and the sequence of the pipe jacking all

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32

Liu, Shao Tang, Guo Rong Pan, and Hui Feng Zhang. "Guiding Survey Technology for Long Curved Pipe Jacking." Advanced Materials Research 639-640 (January 2013): 247–50. http://dx.doi.org/10.4028/www.scientific.net/amr.639-640.247.

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The paper discusses guide survey system in long distance curved pipe jacking, presents a three-dimensional datum transformation model to determine the orientation of jacking pipe，The unitary principle and the new navigating method are introduced and the methods accuracy and variance are analyzed. The intelligence guide system is carried through easily associate with total station. The mathematical model, the operation principle, the hardware realization of extra long pipe jacking automatic guidance are introduced. Practice shows that all the reference points are used more efficiently in the ne

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33

Guo, Rui, Teng-fei Nian, Xi-qing Wang, and Guang-ling Guo. "Friction coefficient and stress–strain on a soil-buried box culvert jacking in highway construction." Advances in Structural Engineering 23, no. 9 (2020): 1880–89. http://dx.doi.org/10.1177/1369433220901819.

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In this article, the factors affecting the friction coefficient between a box culvert’s sidewalls and surrounding soil and the box culvert’s mechanical behavior during the jacking process in construction were studied with an engineering example in Guangdong province, China. First, the principal factors that affected changes in the friction coefficient and its law were analyzed with self-development model testing. Second, in combination with 3D finite element simulation, both the stress and strain laws of a box culvert’s different parts were studied by considering changes in jacking distance, s

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34

Ji, Xinbo, Wen Zhao, Pengpeng Ni, et al. "A method to estimate the jacking force for pipe jacking in sandy soils." Tunnelling and Underground Space Technology 90 (August 2019): 119–30. http://dx.doi.org/10.1016/j.tust.2019.04.002.

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35

Ji, Xinbo, Pengpeng Ni, and Marco Barla. "Analysis of jacking forces during pipe jacking in granular materials using particle methods." Underground Space 4, no. 4 (2019): 277–88. http://dx.doi.org/10.1016/j.undsp.2019.03.002.

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36

Yang, Xiaoyi. "Application of Comprehensive Rectification Method in Rectification of Buildings." E3S Web of Conferences 165 (2020): 04004. http://dx.doi.org/10.1051/e3sconf/202016504004.

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This year, there are two ways to rectify buildings: forced landing and jacking up. The method of landing is to increase the settlement of the smaller side of the building, and the method of landing is the digging soil method, the irrigation method, the pile loading method, etc. the jacking method is on the basis of the stable foundation settlement, and the upper structure or foundation is raised on the larger side of the building so that the building will be leveled back, and the jacking method has static pressure pile top. Lifting method, lime pile lifting method, high pressure jet pile jacki

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37

Zhu, Cheng, Rui Li, and Zhi Yun Zhang. "Jacking Force Controlling Technique of PC Beam Flexible Piers Based on Multiple Points Pushing Method." Applied Mechanics and Materials 395-396 (September 2013): 548–54. http://dx.doi.org/10.4028/www.scientific.net/amm.395-396.548.

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With the advantages such as shortening the construction period, not affecting the relative navigation and effectively reducing the construction cost, jacking construction technology has been widely applied, as the construction method compared with other conventional construction method is more complicated, it is necessary to discuss the control technology of jacking force during the construction process.

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38

Li, Hong Fang, Chang Gong, and Zhi Fang. "Behaviors of Concrete Beam Prestressed with External CFRP Tendons." Key Engineering Materials 400-402 (October 2008): 559–66. http://dx.doi.org/10.4028/www.scientific.net/kem.400-402.559.

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The purpose of present paper is to study the flexural behaviors of concrete T-beams prestressed with external carbon fiber reinforced polymer(CFRP) tendons. Tests were carried out on 5 beams under four-point load, of which four beams were reinforced with hybrid both external CFRP tendons and internal steel rebars and another one only reinforced with internal steel rebars. Such parameters as the different initial loading states at external CFRP tendon jacking and different jacking stress in tendon were considered in experiment. A program was developed to predict the behaviors of those beams pre

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39

Caron, Peter. "Jacking Techniques for Log Buildings." APT Bulletin 20, no. 4 (1988): 42. http://dx.doi.org/10.2307/1504238.

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40

Marti, Peter, Stefan Trümpi, and Daniel Heinzmann. "Hydraulic Joint for Pipe Jacking." Journal of Construction Engineering and Management 135, no. 6 (2009): 439–47. http://dx.doi.org/10.1061/(asce)0733-9364(2009)135:6(439).

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41

Gong, Qing, Hehua Zhu, Zhiguo Yan, Boqi Huang, Yao Zhang, and Zeyu Dong. "Fracture and Delamination Assessment of Prestressed Composite Concrete for Use with Pipe Jacking Method." Mathematical Problems in Engineering 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/579869.

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Prestressed composite concrete pipe (PCCP) has been widely used in water-transmission line and has been proven with many advantages over pure concrete or steel pipes, such as high performance with relatively low cost for materials as well as simplified installation and construction process. Recent efforts have been made to enable the PCCP structure suitable for pipe jacking method so as to replace the conventional cut and cover method. In this way, the construction time, disturbance to nearby structures, and the cost can be greatly reduced. In this paper, we present the full-scale experimental

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Zhang, Hao Jie, Zi Qiang Peng, Bao Lai Li, and Xiao Chun Fan. "Control Technology on Jacking Closure Construction of Liangjiang Great Bridge." Applied Mechanics and Materials 587-589 (July 2014): 1430–34. http://dx.doi.org/10.4028/www.scientific.net/amm.587-589.1430.

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Prestressed concrete continuous rigid frame bridge is widely used in bridge engineering. Its closure is one of very important working procedure in the bridge construction. In this paper, taking Liangjiang Great Bridge in Xinxu Highway as an example, the methods for determining the Jacking force and displacement are discussed. The implementation of the process and construction technology of closure jacking scheme is introduced in detail. Through the finite element simulation, the stress state of on the structural pusher is analyzed. And the maximum stress of the pier bottom and the displacement

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Wen, Kai, Hideki Shimada, Wei Zeng, Takashi Sasaoka, and Akihiro Hamanaka. "Numerical Analysis of Face Stability of Slurry Pipe Jacking Tunnel in Frozen Ground." Earth Science Research 6, no. 2 (2017): 1. http://dx.doi.org/10.5539/esr.v6n2p1.

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In this paper, a series of parametric three-dimension numerical simulations were carried out to estimate the face stability and to calculate the minimum allowable slurry pressure of pipe jacking tunnel in frozen ground for the first time. In total, 5120 of simulation schemes were done with different ground temperature, diameter and cover thickness of tunnel, cohesion and friction angle of frozen soil. In order to figure out the optimal grouting pressure, 4 groups of additional simulations are computed with the uniform face support pressure of 0.5, 1.0, 1.5 and 2.0 times of horizontal stress, σ

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Wang, Tie Cheng, Yu Hang He, and Hai Long Zhao. "Analysis on Mechanical Properties of the Integral Jacking-Up of an Ancient Building." Applied Mechanics and Materials 405-408 (September 2013): 900–904. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.900.

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The underpinning plate is the main load-bearing structure in the integral jacking-up process of ancient building. The deformation and mechanical properties of the underpinning plate have impact on the stability and the safety of the whole integral jacking-up process. The deformation and mechanical properties of the underpinning plate in the loading stage and after the partial unloading stage are analyzed with ANSYS in the integral jacking-up process of a certain ancient building. It is shown that the deflection of the prestressed underpinning beam satisfies the requirement of the design code i

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Dou, Jinzhong, Jinjian Chen, Chencong Liao, Min Sun, and Lei Han. "Study on the Correlation between Soil Consolidation and Pile Set-Up Considering Pile Installation Effect." Journal of Marine Science and Engineering 9, no. 7 (2021): 705. http://dx.doi.org/10.3390/jmse9070705.

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In saturated fine-grained soil, the development and dissipation of excess pore water pressure (EPWP) during and after pile jacking change the effective stress of the surrounding soil, and thereby affect the pile set-up. In this paper, the entire process of steel-pipe pile jacking (the installation process and the subsequent consolidation phase) is simulated with three-dimensional (3D) finite element models, considering the pore water effect. After the model verification, a comprehensive numerical analysis was performed to investigate the development and dissipation of EPWP, changes in soil str

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Zhou, Ji Zhong, Qi Lin, Ming Pi Liao, Jin Ping Zhuang, and Xue Feng Cai. "Application of Modularized Low-Position Jacking Formwork System in Core-Tube Building." Applied Mechanics and Materials 405-408 (September 2013): 3103–7. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.3103.

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Compared with other template construction technology, jacking formwork system has the advantages of self-climbing, less operating personnel, good safety and good construction quality, with relatively innovative construction techniques and technology and has been widely used in the construction of tall buildings in recent years. The lifting principles and characteristics of jacking formwork were introduced in the paper. Based on the application in a tall building project, construction technologies of the formwork were introduced.

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Zhou, Yang, Jun Feng Shi, and Tian Qing Yu. "Steel Truss Girder Bridge Reinforcement Removing Phase Analysis of Stress Dynamic Monitoring." Advanced Materials Research 668 (March 2013): 650–55. http://dx.doi.org/10.4028/www.scientific.net/amr.668.650.

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By taking a simple supported concrete-filled steel truss bridge as the research object in Guangzhou, some jobs have been done such as the simulating calculation and the real-time monitoring of side span steel girder during the jacking construction procedure, and contrast analysis was conducted between the calculating stress value and the measured stress value, which may draw a conclusion that the safety could be satisfied during the jacking construction procedure

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Li, Lin, Chang Ji Shan, and Yi Duo Bian. "Hydraulic Parts Designed for Bulky Goods Hydraulic Jacking Subsystem." Advanced Materials Research 968 (June 2014): 244–49. http://dx.doi.org/10.4028/www.scientific.net/amr.968.244.

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In this paper, the major design is the jacking of bulky goods, jacking subsystem of translation system and traction cylinder in translation subsystem. The control of hydraulic system makes bulky goods reach a height, which are drawn by the traction hydraulic cylinder on anchor or sliding load car to load or unload the ship. This equipment can effectively reduce the transportation cost and it can be used to unload a variety of bulky goods.

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Sang, Songkui, Yonghong Wang, Jiaxiao Ma, and Mingyi Zhang. "Experimental Research Based on the Optical Fiber Sensing Technology for a Jacked PHC Pipe Pile Penetration Process." Advances in Civil Engineering 2020 (July 8, 2020): 1–8. http://dx.doi.org/10.1155/2020/8873308.

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The aim of this work is to explore the influence of the end resistance and shaft resistance regarding the mechanism for jacked pile penetration and the load-transfer rule during the penetration process. A full-scale field test was conducted in an actual project located in Dongying, Shandong Province, China. In this test, the axial strain experienced by two closed Prestressed High-strength Concrete (PHC) pipe piles during jacking into layered soil was monitored successfully using Fiber Bragg Grating (FBG) sensors mounted on the pile shaft. The experimental results show that FBG sensors have a g

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Xu, Li Ge, Yi Li Wang, and Chang Jie Xu. "Jacking Technology for a Simply Supported Girder Bridge." Applied Mechanics and Materials 477-478 (December 2013): 675–80. http://dx.doi.org/10.4028/www.scientific.net/amm.477-478.675.

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Numerous bridges have to be lifted to meet increased navigation capacity. However, no relevant technical standard for the jack-up technique is yet available. This paper presents a study on the integral lifting of simply supported girder bridge which implements the finite element method. Finite element analysis provides a reliable basis in controlling construction. Research shows that stress concentration is evident near support points in the lifting process. Thus, stress monitoring is necessary. These points should be near to the bridge web. Moreover, beam span and section rigidity should also

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