CHEN Yang,MA Bao-song,ZENG Cong.Numerical Analysis of Surface Settlement and Calculation of Jacking Force for Pipejacking Construction[J].China Water & Wastewater,2020,36(20 20):27-31.
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Numerical Analysis of Surface Settlement and Calculation of Jacking Force for Pipejacking Construction

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第36卷 Number: 20 20 Page: 27-31 Column: Date of publication: 2020-10-17
Author(s):
CHEN Yang1; MA Bao-song2; ZENG Cong1
(1. Faculty of Engineering, China University of Geosciences, Wuhan 430074, China; 2. School of Civil Engineering, Sun Yatsen University, Zhuhai 519082, China)
Keywords:
pipe jacking construction; jacking force; surface settlement; Peck formula
Abstract:
Trenchless pipe jacking technology is proposed to be used in the pipeline construction of Minjiang River North to South Water Diversion Project（Pingtan Water Diversion Project）, and the strata mainly includes silt soil layer, middle sand layer and middle weathering lava. The predicted values of jacking force of four jacking sections are obtained by calculation. Based on the previous results, the perturbation of the surrounding soil is investigated. By simulating the surface settlement of pipe jacking and analyzing the patterns, the simulation results are compared with the calculation results from the Peck formula, the basic trend of ground settlement obtained by the established model is verified. And the possible reasons for the change of settlement amplitude of different cross sections are discussed, which provides preliminary supports for the engineering construction design.
Last Update: 2020-10-17