硅酸盐通报2018，Vol.37Issue(3)：985-989,5.
应力-渗流耦合作用下井壁混凝土力学性能试验研究
Experimental Study on Mechanical Properties of Shaft Lining Concrete under Stress-Seepage Coupling
摘要
Abstract
In order to research mechanical property of shaft lining concrete under stress-seepage coupling, two kinds of strength grade shaft lining concrete are prepared,and design osmotic pressure is 4 MPa,6 MPa,8 MPa, 10 MPa, three-axis coupling experiments are carried out.The result shows: under the same confining pressure, with the increase of seepage pressure, peak strength of shaft lining concrete decreases and secant modulus decreases;with the increase of confining pressure,peak strength of shaft lining concrete increases with the increase of confining pressure.Osmotic pressure has some influence on peak strength,but the dominant effect is confining pressure.The change of permeability in the whole process of stress and strain of shaft lining concrete is divided into four stages, the corresponding conceptual model is established to describe the mechanical behavior of each stage.关键词
应力-渗流耦合/井壁混凝土/渗透压/峰值强度/割线弹性模量/渗透率Key words
stress-seepage coupling/shaft lining concrete/osmotic pressure/peak strength/secant modulus/permeability分类
建筑与水利引用本文复制引用
薛维培,姚直书,孔干,解德柱,武汉..应力-渗流耦合作用下井壁混凝土力学性能试验研究[J].硅酸盐通报,2018,37(3):985-989,5.基金项目
国家自然科学基金面上项目(51674006) （51674006）
安徽省高校学科(专业)拔尖人才学术项目(gxbjZD09) （专业）
安徽省高等学校自然科学研究重点项目(KJ2018A111) （KJ2018A111）
安徽理工大学青年教师科学研究基金重点项目(QN2017211) （QN2017211）
矿山地下工程教育部工程研究中心开放研究项目(2017KF06) （2017KF06）
