Analysis of the effect of MJS reinforcement methods on reducing the influence of pipe jacking construction
International Conference on Smart Transportation and City Engineering (STCE 2022)(2022)
Abstract
Based on a pipeline gallery project passed through a box culvert in Xi'an city, a finite element model was built to study the effect on reducing the influence of pipe jacking construction which MJS reinforcement combining horizontal and vertical piles was adopted. The result shows that MJS combined horizontal and vertical piles can reduce the influence of pipe jacking construction. The optimal effect of internal force, vertical displacement, horizontal displacement and surface settlement of the culvert after combined reinforcement were 17.58%, 17.18%, 42.44% and 67.26%, respectively. The actual surface settlement of four sections is compared with that of combined reinforcement in numerical simulation, and the accuracy of numerical simulation is verified. This proves that the MJS construction method plays an important role in protecting existing structures in the undercrossing project.
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Key words
mjs reinforcement methods,pipe,construction
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