人民长江2016，Vol.47Issue(9)：41-47,7.DOI:10.16232/j.cnki.1001-4179.2016.09.011
大埋深粗粒土勘察及物理力学特性试验研究
Geological exploration on properties of deep covered coarse grained soil and experimental research
胡金山 1曲海珠 1甘霖1
作者信息
- 1. 中国电建集团 成都勘测设计研究院有限公司，四川 成都610072
- 折叠
摘要
Abstract
With more and more construction of water conservancy and hydropower projects in China, good bedrock dam founda-tions are gradually decreased, and more deep overburden foundation remained. So the survey of deep overburden foundation is a primary problem to be solved in engineering. We study the law of the physical and mechanical properties of deep buried coarse grained soil after foundation pit excavation by in-situ test, summarize the survey methods, and analyze the relationship between dry density, average particle size and soil bearing capacity, deformation modulus, cohesion in the in-situ test by statistical anal-ysis and analyze the statistical regularity between permeability coefficient and critical gradient in in-situ test. By comparative study between the in-situ tests and the laboratory tests, we have found the relationship between cohesion, internal friction an-gle, damage hydraulic gradient, critical hydraulic gradient in in-situ tests and the values in laboratory tests. The studies can help improve the efficiency of deep overburden survey work.关键词
大埋深粗粒土/原位试验/室内试验/深厚覆盖层Key words
deep covered coarse grained soil/in-situ test/deep overburden分类
天文与地球科学引用本文复制引用
胡金山,曲海珠,甘霖..大埋深粗粒土勘察及物理力学特性试验研究[J].人民长江,2016,47(9):41-47,7.
