Study on the theory and methods of bolt-shotcrete support for weak surrounding rock based on reliability analysis

doi:10.4028/www.scientific.net/AMM.0.1446

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 会议论文

	Study on the theory and methods of bolt-shotcrete support for weak surrounding rock based on reliability analysis
	Ou, Zhe; Chen, Congxin; Cheng, Guanwen; Zheng, Yun
	2014
会议日期	JUL 17-19, 2013
会议地点	Kunming, PEOPLES R CHINA
关键词	weak surrounding rock reliability analysis bolt-shotcrete support design parameters
卷号	444-445
DOI	10.4028/www.scientific.net/AMM.0.1446
页码	1446-1453
英文摘要	The evaluation of stability and reliability of support system for tunnel weak surrounding rock are difficult issues of concern in rock and soil engineering. Aiming at the problem of parameter design and reliability evaluation of tunnel weak surrounding rock and bolt-shotcrete support system, the deformation, failure mechanism and physical mechanical properties of weak surrounding rock are analyzed as well as the mechanism of bolt-shotcrete support in soft rock is studied. And the reliability analysis equation of bolt-shotcrete support in two kinds of weak surrounding rock (nearly horizontal layered mechanics medium and continuum mechanics medium) is established. The quantitative soft rock supporting theory is introduced into the reliability analysis equation. The calculation formula of two important design parameters of anchoring force and bolt spacing in bolt-shotcrete support is established. Finally an engineering example is adopted to prove the rationality of the calculation results. Therefor this paper provides theoretical basis and design method for supporting structure design and reliability evaluation of tunnel weak surrounding rock.
会议录	ADVANCES IN COMPUTATIONAL MODELING AND SIMULATION, PTS 1 AND 2
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	STAFA-ZURICH
语种	英语
WOS研究方向	Engineering ; Materials Science ; Mechanics
WOS记录号	WOS:000338974900252
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4797]
专题	岩土力学所知识全产出_会议论文国家重点实验室知识产出_会议论文
作者单位	Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Ou, Zhe,Chen, Congxin,Cheng, Guanwen,et al. Study on the theory and methods of bolt-shotcrete support for weak surrounding rock based on reliability analysis[C]. 见:. Kunming, PEOPLES R CHINA. JUL 17-19, 2013.