CAJ | 학술논문

西安地铁四号线五路口车站采用半铺盖顺筑法施工，基坑中部的临时立柱桩造成了钢管支撑安拆难度大，地下水位偏高及局部限高下施工等不确定性因素给基坑支护工程施工安全带来隐患。阐述了该支护工程特点及方案设计，通过对现场监测数据的分析，得到围护桩桩顶水平位移、支撑轴力、临时立柱桩沉降及地表累计沉降。同时运用有限元软件模拟基坑开挖，模拟结果和实测结果对比表明，基坑支护方案合理可行，结构可靠安全，达到了预期效果。
서안지철사호선오로구차참채용반포개순축법시공，기갱중부적림시립주장조성료강관지탱안탁난도대，지하수위편고급국부한고하시공등불학정성인소급기갱지호공정시공안전대래은환。천술료해지호공정특점급방안설계，통과대현장감측수거적분석，득도위호장장정수평위이、지탱축력、림시립주장침강급지표루계침강。동시운용유한원연건모의기갱개알，모의결과화실측결과대비표명，기갱지호방안합리가행，결구가고안전，체도료예기효과。
Wulukou station of Xi'an Metro Line 4 adopted the semi-cover construction method,temporary post pile in the middle of foundation pit caused the installation and removal difficulty of steel pipe supporting,high groundwater level and local limiting construction,which means such uncertainties could bring hidden trouble to the safety of foundation pit supporting engineering construction. T his paper described the characteristics and scheme design of the supporting project,obtained the horizontal displacement of retaining pile top,supporting axial force, temporary post pile settlement and surface cumulative settlement through on-site monitoring data analysis. Finite element software was used to simulate foundation pit excavation and the simulation results and the experimental results showed that the foundation pit supporting scheme is reasonable and feasible,structure of which is reliable and safe,and the expected results are achieved.