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浅埋大断面隧道施工工法优化探讨

ISSN号：1000-6915
期刊名称：《岩石力学与工程学报》
时间：0
分类：P588.121[天文地球—岩石学;天文地球—地质学] TU452[建筑科学—岩土工程;建筑科学—土工工程]
作者机构：[1]Research Center for Urban Safety and Security, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan, [2]Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China, [3]College of Civil Engineering, Fuzhou University, Fuzhou 350002, China
相关基金：Projects（50378069, 50639090） supported by the National Natural Science Foundation of China; Project（50639090） supported by the Joint Fund of Yalong River Hydropower Development, China

关键词：岩石学, 渗流应力, 岩石力学测试系统, 数学表达式, 耦合模型, soft rock, stress--strain relation, seepage-stress coupling, constitutive model, coefficient of permeability

中文摘要：

为了提供联合组成的模型的一个渗出物压力，那能直接描述联合关系的渗出物压力，在二种软岩石(陶土的淤泥石头和棕色的泥石头) 上联合测试的一系列一个维的渗出物压力被使用 MTS-815.02 执行 tri 轴的岩石力学测试系统，与它压力—紧张曲线根据渗出物变化被获得。基于试验性的结果并且由采用胡克的法律，紧张依赖者渗透的系数的明确的表达被介绍并且介绍了建立 a coupling 模型。另外，为联合模型的数学表达式和增长明确的表达被推进，在哪个能被使用试验性的结果分别地决定的五个参数被包括。计算结果证明建议联合模型能够模仿压力—与考虑在二种软岩石的非线性的有弹性的阶段联合的渗出物压力拉紧关系。

英文摘要：

To provide a seepage-stress coupling constitutive model that can directly describe the seepage-stress coupling relationship, a series of one-dimensional seepage-stress coupling tests on two kinds of soft rock （argillaceous siltstone and brown mudstone） were performed by using an MTS-815.02 tri-axial rock mechanics test system, with which the stress--strain curves according to the seepage variation were obtained. Based on the experimental results and by employing Hooke＇s law, the formulation of the coefficient of strain-dependent permeability was presented and introduced to establish a coupling model. In addition, the mathematical expression and the incremental formulation for coupling model were advanced, in which five parameters that can be respectively determined by using the experimental results were included. The calculated results show that the proposed coupling model is capable of simulating the stress--strain relationship with considering the seepage-stress coupling in the nonlinear elastic stage of two kinds of soft rock.

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