黑龙江科技大学学报2017，Vol.27Issue(5)：515-519,5.DOI:10.3969/j.issn.2095-7262.2017.05.014
砂卵石地层管幕施工中地层扰动的数值模拟
Simulation of formation disturbance in construction of sand and gravel stratum
摘要
Abstract
This paper is aimed at identifying the degree to which projects disturb strata.The research involves establishing the new route of the Muxiyuanqiao South Station and Daxingmen Station using the mine method;based on the measured data, developing the three-dimensional numerical model using the FLAC3D software;and thereby investigating the influence of the pipe construction on the perturbation deformation in the sand and gravel stratum.The results show that the disturbances of the upper strata by the curtain construction are dominated by sediment;the pre-support system in the sand and gravel strata could reduce the disturbance of the upper soil layer by the tunnel construction;and the construction of the new tunnel under the action of the pipe pre-support system allows the existing structure of the settlement deformation to be controlled within the allowable range.The study could provide references for the design and construction of the pre-support system for the underground engineering.关键词
砂卵石地层/管幕法/施工扰动/微变形控制/数值模拟Key words
sand and gravel stratum/pipe curtain method/construction disturbance/microdeformation control/numerical simulation分类
交通工程引用本文复制引用
刘新建,张倍,边金,罗文江,赵辉..砂卵石地层管幕施工中地层扰动的数值模拟[J].黑龙江科技大学学报,2017,27(5):515-519,5.基金项目
国家自然科学基金项目(41572276) （41572276）
