[1]孔纪名,蔡强,张引,等.单排微型桩加固碎石土滑坡物理模型试验[J].山地学报,2013,(04):399.
　KONG Jiming,CAI Qiang,ZHANG Yin,et al.Physical Model Test of Debris Landslide Reinforcement with Single Row Micropile[J].Mountain Research,2013,(04):399.
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单排微型桩加固碎石土滑坡物理模型试验()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2013年04期
页码:
399
栏目:
山地灾害
出版日期:
2013-01-01

文章信息/Info

Title:
Physical Model Test of Debris Landslide Reinforcement with Single Row Micropile
作者:
孔纪名;蔡强;张引;韩培锋;
1.中国科学院山地灾害与地表过程重点实验室/中国科学院水利部成都山地灾害与环境研究所,四川 成都 610041；
2.中国科学院大学,北京 1001011
Author(s):
KONG Jiming;  CAI Qiang;  ZHANG Yin;  HAN Peifeng
1. Key Laboratory of Mountain Hazards and Surface Process / Chinese Academy of Science Institute of Mountain Hazards and Environment, Chinese Academy of Science, Chengdu 610041,China; 2University of Chinese Academy of Sciences, Beijing 100101,China
关键词:
微型桩; 碎石土滑坡; 滑坡推力; 土拱效应; 临界弯矩
Keywords:
Micropile;  Gravel soil landslide;  Landslide thrust;  Soil arching;  Critical moment
分类号:
P642.22
文献标志码:
A
摘要:
微型桩因其自身优势被广泛使用,但有关其抗滑机理的理论研究相对较少。首先对模型桩的力学特性进了标定试验,获得其弹塑性工作阶段的弹性模量,分别为0.69×104MPa和0.04×104MPa;再通过不同桩间距下单排微型桩加固碎石土滑坡室内模型试验,研究微型桩抗滑机理。试验结果表明:不同桩间距下单排微型桩桩后土压力主要集中在滑面以上1/3桩身范围内;桩间距较小,土拱效应越明显,微型桩抗滑失效的最大临界弯矩越大,微型桩能承受的滑坡推力越大,抗滑效果越好。
Abstract:
Micropiles are widely used because of its own advantages, but relatively few theoretical studies about its antislide mechanism. Firstly, the mechanical properties of the model pile into calibration tests, to get of elastoplastic session elastic modulus, were 0.69×104 MPa and 0.04×104 MPa.Through the different pile spacing under a single row of miniature pile reinforcement gravel soil landslide indoor model experiment to study the micropiles against sliding mechanism. The test results show that: different pile spacing, single row of micropile soil pressure mainly concentrated in the range of slip surface more than 1/3 of the pile. The pile spacing is small, soil arching effect, the greater the micro pile skid failure critical moment, the micro pile can withstand landslide thrust the greater skid the better.

相似文献/References:

[1]李志雨,何晖,郭智,等.基于桩间土拱效应的微型桩间距的分析[J].山地学报,2015,(03):326.
　LI Zhiyu,HE Hui,GUO Zhi.The Micro Pile Analysis for Interval Based on the Soil Arch Effect[J].Mountain Research,2015,(04):326.

备注/Memo

备注/Memo:
收稿日期(Received date)：2013-02-19；改回日期(Accepted) : 2013-06-03。
基金项目（Foundation item）：国家高技术研究发展计划(“863”计划)项目(2012AA121302)，四川省科技支撑计划（11ZC0550），中交股份科技研发项目（2011-ZJKJ-04）课题资助。[Supported by National high technology research and development program ("863" Project) project (2012AA121302)，Sichuan Science and Technology Support Program(11ZC0550)，CCCC R & D projects (2011-ZJKJ-04).]
作者简介（Biography）：孔纪名(1956-)，男，重庆人，研究员，主要从事斜坡变形破坏规律研究。 [Kong Jiming(1956-),male, professor. Mainly engaged in the study of the theory of mountain hazards and disaster reduction technology.] E-mail：jimingk@imde.ac.cn
更新日期/Last Update: 1900-01-01