Modeling of grout crack of rockbolt grouted system
Modeling of grout crack of rockbolt grouted system
复制标题
岩栓灌浆体系灌浆裂缝模拟
DOI:
10.1016/j.ijmst.2014.11.005
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发表时间:
2015
影响因子:
11.8
通讯作者:
Chang Xu
中科院分区:
文献类型:
--
作者:
Zhu Changxing;Chang Xu
This paper presents a numerical study on the pullout behavior of the rockbolt grouted system. Among the complicated failure modes of the rockbolt grouted system, the crack of the grout is concerned here. A tri-linear cohesive zone model (CZM) is used to simulate the interfacial behavior of rockbolt–grout interface; and a plastic damaged model is adopted for the grout materials. The feasibility of the numerical method is verified by comparing the calculated results with the test observations. The numerical results indicate that two types of cracks of the grout materials can be identified as the inclined crack and the horizontal crack. The inclined crack forms firstly and then the horizontal crack. Both cracks can reduce the interfacial shear stress and thus reduce the load transfer efficiency. Further analysis indicates that the crack of the gout material can induce the obvious drops of load capacity, which is not a safe failure mode. This study leads to a better understanding of the mechanism for rockbolt grouted system.
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DOI:
10.1088/0508-3443/3/3/302
发表时间:
1952-01-01
期刊:
BRITISH JOURNAL OF APPLIED PHYSICS
影响因子:
--
作者:
COX, HL
通讯作者:
COX, HL
影响因子:
7.4
作者:
F. Delhomme;G. Debicki
通讯作者:
F. Delhomme;G. Debicki
影响因子:
5.5
作者:
Chen, J. F.;Yuan, H.;Teng, J. G.
通讯作者:
Teng, J. G.
DOI:
10.1016/0148-9062(95)00021-8
发表时间:
1995-10-01
期刊:
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES & GEOMECHANICS ABSTRACTS
影响因子:
--
作者:
BENMOKRANE, B;CHENNOUF, A;MITRI, HS
通讯作者:
MITRI, HS
影响因子:
5.3
作者:
P. Qiao;Y. Chen
通讯作者:
P. Qiao;Y. Chen