煤田地质与勘探2018，Vol.46Issue(1)：115-118,4.DOI:10.3969/j.issn.1001-1986.2018.01.020
用快剪试验推求先期固结压力
Determination of pre-consolidation pressure using quick direct shear tests
摘要
Abstract
The preconsolidation pressure of soil is a very important index to decide the history of soil stress.In this paper,based on the relationship between undrained shear strength and over consolidation ratio (OCR) proposed by Wroth C.P.under one-dimensional consolidation condition,the critical state pore water pressure coefficient(Λ0) is calculated by the quick shear strength,and then OCR and pre-consolidation pressure can be obtained.The test resuits of the saturated remolded clay acquired in Nanjing show that the calculated OCR is approximately equal to the design,indicating the proposed method can be used as an way to determine the pre-consolidation pressure.关键词
先期固结压力/直剪试验/强度参数Key words
pro-consolidation pressure/quick direct shear test/strength parameters分类
建筑与水利引用本文复制引用
李怀辉,张云,史卜涛,胡磊..用快剪试验推求先期固结压力[J].煤田地质与勘探,2018,46(1):115-118,4.基金项目
国家自然科学基金项目(41572250)National Natural Science Foundation of China(41572250) （41572250）
