采矿与安全工程学报2015，Vol.32Issue(4)：578-584,7.DOI:10.13545/j.cnki.jmse.2015.04.009
深部土与立井井壁竖向相互作用试验台研制及初步应用
Development and preliminary application for test rig of the vertical interaction between deep soil and shaft lining
摘要
Abstract
In this article, a test rig applying to research on the vertical interaction between deep soil and shaft lining has been developed successfully. Vertical interaction test between saturated sand and C60 concrete shaft lining has been studied preliminarily. The test rig has three main technical parame-ters: the maximum effective test space is 820 mm×820 mm, the maximum pressure capacity is 24 MPa and the maximum depth of research soil is 1 200 m. The vertical shear test between saturated sand and C60 concrete interface shows that when the average interface normal stress is 0.2-0.4 MPa, the shear stress-shear displacement curve can be described by elastic-plastic model. The maximum shear dis-placement is about 0.53-1.11 mm. The ultimate static friction coefficient is 0.70-0.53 and the interface shear strength is 140-210 kPa.关键词
深部土与井壁/界面相互作用/高压试验台/数值模拟/物理试验Key words
deep soil and shaft lining/interface interaction/high pressure test rig/numerical simu-lation/experimental analysis分类
矿业与冶金引用本文复制引用
张驰,杨维好,王衍森,张涛..深部土与立井井壁竖向相互作用试验台研制及初步应用[J].采矿与安全工程学报,2015,32(4):578-584,7.基金项目
国家自然科学基金项目(51174194) （51174194）
教育部新世纪优秀人才支持计划项目(NCET-10-0771) （NCET-10-0771）
