合肥重塑膨胀土三向应力–应变规律探讨

doi:10.13722/j.cnki.jrme.2016.1653

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Abstract

This paper studies the characteristic of remolded expansive clay in Hefei. A series of three-dimensional swelling tests were conducted for cubic expansive soil of different initial moisture contents and dry density as well as the swelling pressure tests under the control of the vertical strain and the lateral strain. The vertical swelling pressure is always bigger than lateral swelling pressure. Moreover，the range of R₀ change is between 0.525 and 0.904. Secondly，under the same initial moisture contents，R₀ will increase with the rise of dry density. At last，the study shows that the trends of evolution of swelling pressure under the control of the vertical strain and the evolution of the lateral swelling pressure under the control of the lateral strain are similar. The tiny strain would lead to the dramatic decrease of swelling pressure. Moreover，with the decline of the strain，the rate of decay of swelling pressure will increase.

Key words： soil mechanics remolded expansive clay three-dimensional swelling pressure instrument swelling pressure strain

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	Articles by authors
	CHI Zecheng1
	2
	CHEN Shanxiong2
	DAI Zhangjun1
	2
	ZHOU Zhe1
	2
	SONG Ruijun1
	2

Cite this article:

CHI Zecheng1,2,CHEN Shanxiong2, et al. Research on strain regularity of three-dimensional stress of Hefei remolded expansive clay[J]. , 2018, 37(S1): 3659-3665.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2016.1653 OR https://rockmech.whrsm.ac.cn/EN/Y2018/V37/IS1/3659

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