[1]曹越,华兴林,雷泉龙,等.滑带土体强度恢复过程中基质吸力变化分析[J].江苏水利,2024,(12):45-49.
　CAO Yue,HUA Xinglin,LEI Quanlong,et al.Analysis of changes in matric suction during the strength recovery process of sliding zone soil[J].JIANGSU WATER RESOURCES,2024,(12):45-49.
点击复制

滑带土体强度恢复过程中基质吸力变化分析()
分享到：

《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2024年12期
页码:
45-49
栏目:
水利工程建设
出版日期:
2024-12-15

文章信息/Info

Title:
Analysis of changes in matric suction during the strength recovery process of sliding zone soil
文章编号:
1007-7839（2024）12-0045-0005
作者:
曹越1; 华兴林2; 雷泉龙2; 张腾2
（1. 南京大学 地球科学与工程学院，江苏 南京 210046；2. 南京市水利规划设计院股份有限公司，江苏 南京 210000）
Author(s):
CAO Yue1;  HUA Xinglin2;  LEI Quanlong2;  ZHANG Teng2
（1. School of Earth Science and Engineering, Nanjing University, Nanjing 210046, China；2. Nanjing Water Conservancy Planning and Design Institute Co., Ltd., Nanjing 210000, China）
关键词:
强度恢复; 反复剪试验; 基质吸力
Keywords:
strength recovery;  repeated shear test;  matrix suction
分类号:
TV853
文献标志码:
A
摘要:
河岸土体在滑坡后受湿化作用会呈现滑动面的自愈现象。为探究滑坡后滑带土体自愈行为及其对土体强度特性的影响机制，基于反复剪切和滤纸法实验，探究强度恢复过程中基质吸力对强度的影响；通过分析强度恢复、基质吸力和时间的变化，探究基质吸力对强度恢复的影响。得出边坡在临界条件下有效应力参数取值的经验公式。研究结果对滑坡区土体强度参数取值有较大指导意义。
Abstract:
The riverbank soil will exhibit the self-healing phenomenon of the sliding surface under the influence of wetting after a landslide. In order to investigate the self-healing behavior of soils and its influence mechanism on the strength properties of soils, this paper explore the influence of matrix suction on strength recovery of soils, based on repeated shear experiments and filter paper method experiments. By analyzing the changes in strength recovery, matric suction and time, the influence of matrix suction on strength recovery is explored. An empirical formula for the value of effective stress parameters of the slope under critical conditions is obtained. The research results have great guiding significance for the value determination of soil strength parameters in landslide areas.

参考文献/References:

[1]STARK T D，CHOI H，McCONE S. Drained shear strength parameters for analysis of landslides[J]. Journal ofGeotechnical and Geoenvironmental Engineering，2005，131（5）：575-588.
[2]RAMIAH B K，PURUSHOTHAMARAJ P，TAVANE N G.Thixotropic effects on residual strength of remoulded clays[J]. Indian Geotech. J，1973，3（3）：189-197.
[3]CHANDLER R J. Back analysis techniques for slope stabilization works：a case record[J]. Geotechnique，1977，27（4）：479-495.
[4]包承纲. 非饱和土的性状及膨胀土边坡稳定问题[J]. 岩土工程学报，2004（1）：1-15.
[5]CARRUBBA P，Del Fabbro M. Laboratory investigationon reactivated residual strength[J]. Journal of Geotechnicaland geoenvironmental Engineering，2008，134（3）：302-315.
[6]McLASKEY G C，THOMAS A M，GLASER S D，et al. Faulthealing promotes high-frequency earthquakes in laboratoryexperiments and on natural faults[J]. Nature，2012，491（7422）：101-104.
[7]PLUYMAKERS A M H，PEACH C J，SPIERS C J. Diagenetic compaction experiments on simulated anhydritefault gouge under static conditions[J]. Journal of Geophy-sical Research：Solid Earth，2014，119（5）：4123-4148.
[8]HAMBLIN A P. Filter-paper method for routine measure-ment of field water potential[J]. Journal of hydrology，1981，53（3-4）：355-360.
[9]程金茹，沈珍瑶，李满喜. 滤纸吸力率定曲线的研究[J]. 岩土力学，2002，23（6）：800-802.

备注/Memo

备注/Memo:
收稿日期：2024-10-09
基金项目：南京市水利科技资助项目（202204）
作者简介：曹越（1998—），男，硕士研究生，研究方向为岩土工程。E-mail：522023290031@smail.nju.edu.cn
更新日期/Last Update: 2024-12-15