|本期目录/Table of Contents|

[1]胡志平,赵振荣,朱启东,等.西安某地裂缝两侧黄土物理力学性质试验[J].地球科学与环境学报,2009,31(01):85-88.
　HU Zhi-ping,ZHAO Zhen-rong,ZHU Qi-dong,et al.Experimental Study on Physical Mechanic Property of Loess Near Ground Fissur in Xi'an[J].Journal of Earth Sciences and Environment,2009,31(01):85-88.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第31卷
期数:
2009年第01期
页码:
85-88
栏目:
水资源与地质工程
出版日期:
2009-03-15

文章信息/Info

Title:
Experimental Study on Physical Mechanic Property of Loess Near Ground Fissur in Xi'an
文章编号:
1672-6561(2009)01-0085-04
作者:
胡志平; 赵振荣; 朱启东; 马玉平
(长安大学 建筑工程学院,陕西 西安 710061)
Author(s):
HU Zhi-ping;  ZHAO Zhen-rong;  ZHU Qi-dong;  MA Yu-ping
(School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China)
关键词:
地裂缝; 试验研究; 黄土; 物理力学性质
Keywords:
ground fissure;  experimental study;  loess;  physical mechanic property
分类号:
P642.13+1
DOI:
-
文献标志码:
A
摘要:
概述了西安地裂缝的成因、分布规律和活动速率等特征,然后对某条地裂缝特定地段附近的Q3黄土及其下面第一层古土壤进行了原状土样的常规土工试验和重塑土样的三轴流变试验。常规土工试验表明,以地裂缝为中心,越靠近地裂缝土样的天然密度、含水量、液塑限越大,孔隙比、内聚力和内摩擦角越小,均以地裂缝为中心近乎呈对称分布。重塑土样的三轴流变试验表明,地裂缝带内土的三轴流变特性较地裂缝附近黄土的流变特性明显的多。这从另一角度证明了地裂缝为一宏观不连续软弱结构面,为从力学角度研究地裂缝对工程结构的影响分析研究提供参考。
Abstract:
The origin and distribution character and activity rate of ground fissure in Xi'an is represented. Furthermore, the natural soil sample of Q3 loess and its first buried fossil soil near and within a ground fissure are sampled. The routine soil mechanics test of natural soil sample and the triaxial rheological test of remoulded soil sample are accomplished. The indoor test result shows that the natural density, moisture content, liquid limit and plastic limit become higher near the ground fissure, but the porosity ratio, cohesive force, internal friction angle become lower near the ground fissure, which all is nearly symmetric to the ground fissure. The triaxial rheological test of remoulded soil sample shows that the rheological character of the ground fissure soil is more explicit than that of the loess near the ground fissure. The experimental study shows that the physical and mechanical properties of soil near and within ground fissure are very different. Therefore, the ground fissure is a discontinuous week structural plane in the soil. The laboratory test has valuable reference to the influence analysis study of ground fissure on the engineering structure from the viewpoint of mechanics.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2008-04-01
基金项目: 国家自然科学基金项目(40602033)
作者简介: 胡志平(1973-),男,湖南益阳人,副教授,工学博士,从事地下结构设计理论与岩土工程等研究。E-mail:huzhping@chd.edu.cn

更新日期/Last Update: 2009-03-20