Study on the mechanism of zonal disintegration around an excavation

被引：64

作者：

Zhu, Zheming ^{[1
]}

Wang, Chao ^{[1
]}

Kang, Jiming ^{[1
]}

Li, Yuanxin ^{[1
]}

Wang, Meng ^{[1
]}

机构：

[1] Sichuan Univ, Sch Architecture & Environm, Key Lab Minst Educ Energy Engn Safety & Disaster, Chengdu 610065, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES | 2014年 / 67卷

基金：

中国国家自然科学基金;

关键词：

Zonal disintegration; Defects; P-wave; Cracked zone; UNDERGROUND WORKINGS; FRACTURE; ROCKS; PROPAGATION; DAMAGE;

D O I：

10.1016/j.ijrmms.2013.12.017

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Zonal disintegration is a curious phenomenon and has received considerable attention recently. Using traditional static mechanics cannot well explain the phenomenon of the alternately distributed cracked zones. In this paper, the process of a slowly unloading P-wave reflecting from a free surface has been investigated and the result shows that as a slowly unloading P-wave encounters a free surface, it could cause the phenomenon of zonal disintegration. In order to confirm this result, two numerical models of detected rock around an excavation under the action of a slowly unloading P-wave are established. The slowly unloading P-wave is induced by a steel plate impacting the target rock with a proper speed, and their interaction lasts for a long time. The simulation results show that if the strength of slowly unloading P-waves is in a certain range, the phenomenon of zonal disintegration could be observed, and if the incident wave is not a slowly unloading P-wave, such as a rectangle wave, the phenomenon of zonal disintegration will not occur. (C) 2014 Elsevier Ltd. All rights reserved

引用

页码：88 / 95

页数：8

共 50 条

[41] Energy-based forming and anchoring mechanism and criterion for zonal disintegration
Chen Xuguang
Zhang Ning
Ma Tianchi
Niu Xiaodong
Liu Xixi
Feng Tao
THEORETICAL AND APPLIED FRACTURE MECHANICS, 2018, 97 : 349 - 356
[42] Implementation of energy method in study of zonal disintegration of rocks
Khomenko, O.Ye.
Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 2012, 4 : 44 - 54
[43] EXPERIMENTAL AND NUMERICAL STUDY ON ZONAL DISINTEGRATION OF DEEP TUNNEL
Chen, Xu-Guang
Zhang, Qiang-Yong
Lin, Bo
Zhang, Ning
Liu, De-Jun
Wang, Ming-Bin
CONTROLLING SEISMIC HAZARD AND SUSTAINABLE DEVELOPMENT OF DEEP MINES: 7TH INTERNATIONAL SYMPOSIUM ON ROCKBURST AND SEISMICITY IN MINES (RASIM7), VOL 1 AND 2, 2009, : 89 - 94
[44] Research on Failure Mechanism and Parameter Sensitivity of Zonal Disintegration in Deep Tunnel
Zhang, Xutao
Gao, Qiang
Cui, Shicai
Duan, Changrui
ADVANCES IN CIVIL ENGINEERING, 2019, 2019
[45] A spatial strain localization mechanism of zonal disintegration through numerical simulation
Wang, X.
Pan, Y.
Zhang, Z.
JOURNAL OF MINING SCIENCE, 2013, 49 (03) : 357 - 367
[46] A simple gradient model for zonal disintegration of the surrounding rock around a deep circular tunnel
Chen, Haoxiang
Qi, Chengzhi
Wang, Shuo
Wang, Mingyang
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2019, 91
[47] DETERMENATION OF THE BOLTING PARAMETERS UNDER CONDITIONS OF THE ZONAL DISINTEGRATION OF ROCKS AROUND UNDERGROUND WORKINGS
Rozenbaum, M. A.
Badtiev, B. P.
JOURNAL OF MINING INSTITUTE, 2015, 213 : 17 - 23
[48] ZONAL DISINTEGRATION OF ROCKS AROUND UNDERGROUND WORKINGS .1. DATA OF INSITU OBSERVATIONS
SHEMYAKIN, EI
FISENKO, GL
KURLENYA, MV
OPARIN, VN
REVA, VN
GLUSHIKHIN, FP
ROZENBAUM, MA
TROPP, EA
KUZNETSOV, YS
SOVIET MINING SCIENCE USSR, 1986, 22 (03): : 157 - 168
[49] ZONAL DISINTEGRATION OF ROCKS AROUND UNDERGROUND MINES, PART III: THEORETICAL CONCEPTS.
Shemyakin, E.I.
Fisenko, G.L.
Kurlenya, M.V.
Oparin, V.N.
Reva, V.N.
Glushikhin, F.P.
Rozenbaum, M.A.
Tropp, E.A.
Kuznetsov, Yu.D.
Soviet mining science, 1987, 23 (01): : 1 - 6
[50] Quantitative analysis of rockburst for surrounding rocks and zonal disintegration mechanism in deep tunnels
Qian, Qihu
Zhou, Xiaoping
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING, 2011, 3 (01) : 1 - 9

← 1 2 3 4 5 →