|Table of Contents|

Mechanical Properties of Deep Frozen Clay in Wanfu Mine(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2008年第03期
Page:
297-300
Research Field:
水资源与地质工程
Publishing date:

Info

Title:
Mechanical Properties of Deep Frozen Clay in Wanfu Mine
Author(s):
LI Yao-min1; 2; JIANG Zhen-quan1; LI Xiu-han2; LI Jian-shuo1
1. School o f Resources and Earth Sciences, China University o f Mining and Technology, Xuzhou 221008, Jiangsu, China; 2. Heze Energy and Chemical Industry Corporation Limited, Yanzhou Coal Mining Group, Heze 273500, Shandong, China)
Keywords:
deep mine;  artificial frozen soil;  clay;  uniaxial compression strength;  creep characteristics
PACS:
P642.14;TU44
DOI:
-
Abstract:
Based on the results from mechanical properties test for frozen soil which is sampled from the depth over 400 m in Wanfu mine, the stress-strain relationships of the deep frozen clay mainly show the strain- intenerating characteristics, and display large extend yield deformation before reaching the peak stress. According to the frozen effect,- 20℃ is the boundary value of frozen temperature for inflecting the mechanical properties of deep clay. The compression strength of frozen clay enhances obviously and the creep weakens distinctly under frozen temperature of- 20℃ , and further changes of both strength and creep gradually tend to let down despite frozen in lower temperature.

References:

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Memo

Memo:
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Last Update: 2008-09-20