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单排微型桩加固碎石土滑坡物理模型试验
Alternative TitlePhysical Model Test of Debris Landslide Reinforcement with Single Row Micro-pile
孔纪名; 蔡强; 张引; 韩培锋
Corresponding Author孔纪名
2013-07
Source Publication山地学报
Volume31Issue:4Pages:399-405
Other Abstract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。 
; 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 ×10^4 MPa and 0.04 ×10^4 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.
Keyword微型桩 碎石土滑坡 滑坡推力 土拱效应 临界弯矩
Subject Area岩土力学 ; 工程地质学
Indexed ByCSCD
Language中文
CSCD IDCSCD:4970031
Funding Organization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
Citation statistics
Cited Times:6[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6724
Collection山地灾害与地表过程重点实验室
Recommended Citation
GB/T 7714
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,2013,31(4):399-405.
APA 孔纪名,蔡强,张引,&韩培锋.(2013).单排微型桩加固碎石土滑坡物理模型试验.山地学报,31(4),399-405.
MLA 孔纪名,et al."单排微型桩加固碎石土滑坡物理模型试验".山地学报 31.4(2013):399-405.
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