**Source**

**Theme**

**Author**

- Abduraheem, A. (1)
- Ahmadi, M. (1)
- Aijun, Yao (1)
- Aixiang, Wu (2)
- Akamatsu, T. (1)
- Akutagawa, S. (1)
- Al-Shayea, Na (2)
- Anzeng, Hua (1)
- Aubertin, M. (1)
- Azzam, R. (1)
- Bae, Gyu-Jin (1)
- Bailin, Wu (2)
- Baocen, Liu (1)
- Baochen, Liu (1)
- Baoyu, Su (1)
- Beitnes, A. (1)
- Bian, H.Y. (1)
- Bin, Ye (1)
- Bingxiang, Chen (1)
- Bora, P.K. (1)
- Broch, E. (1)
- Cai, J.G. (1)
- Caichu, Xia (1)
- Changliang, Pan (1)
- Chau, K.T. (1)
- Chen, S.G. (1)
- Chen, Z.H. (1)
- Cheng, Ym (1)
- Chenghua, Shi (1)
- Chengxiang, Yang (3)
- Cheon, Dae-Sung (1)
- Chetri, G. (1)
- Cho, Akio (1)
- Cho, Taechin F. (1)
- Choi, J.W. (1)
- Choi, Sung-Oong (1)
- Chongge, Wang (1)
- Chugh, YP. (1)
- Chung, So-Keul (1)
- Chunhun, Gao (1)
- Chunlin, Li (1)
- Chusheng, Wang (1)
- Cojean, R. (1)
- Daixu, Tang (1)
- Day, R.A. (1)
- Deb, Debasis (1)
- Denggang, Wang (1)
- Dianshu, Liu (1)
- Doherty, J. (1)
- En, Zhu (1)
- Enever, J. (1)
- Esaki, Tetsuro (3)
- Esaki, Teturo (1)
- Feng, Chen (2)
- Feng, Q.J. (1)
- Fengnian, Jin (1)
- Figueiredo, R. (1)
- Fukui, Katsunori (1)
- Garcia, F. (1)
- Garlicki, A. (1)
- Gayleg, K. (1)
- Genhua, Shi (1)
- Ghazvinian, A. (1)
- Gonet, A. (1)
- Goshtasbi, K.G. (1)
- Guang, Zhang (1)
- Guoyan, Ma (1)
- Guoyun, Zhou (3)
- Haberfield, C. (1)
- Haiba, Li (1)
- Haibo, Li (1)
- Haihe, Jing (1)
- Han, Kong-Chang (2)
- Handong, Liu (1)
- Hao, H. (1)
- Hao, Lin H. (1)
- Hehua, Zhu (1)
- Hicher, Pierre Wes (1)
- Hirayama, Daisuke (1)
- Hjin, Yeon-Ho (1)
- Hl, Ong (1)
- Hong, Min (1)
- Honggang, An (1)
- Honggang, Tong (1)
- Hongkui, Ge (1)
- Hongwei, Huang (1)
- Hosseini, M. (2)
- Hua, Zhang (2)
- Hualin, Fan (1)
- Hwang, Sei-Ho (1)
- Iino, W. (1)
- Inada, Y. (1)
- Inoue, M. (1)
- Ivars, D.M. (1)
- Jafari, A. (1)
- Jafari, Ahmad (1)
- Jan, M. (1)
- Janbo, Wu (1)
- Jaseng, Zhang (1)
- Jeon, Seokwon (1)
- Jian, Zhao (1)
- Jiangbin, Wu (1)
- Jianguang, Gao (1)
- Jianguo, Yao (1)
- Jianhua, Li (2)
- Jianjun, Liu (1)
- Jianlln, Li (1)
- Jianmin, Yin (1)
- Jianping, Chen (1)
- Jianxi, Ren (1)
- Jicheng, Xu (2)
- Jie, Weng (1)
- Jiguo, Yuan (1)
- Jinan, Wang (1)
- Jing, L. (1)
- Jing, L.J. (1)
- Jing, Yan (1)
- Jingtao, Wang (1)
- Jingxi, Chen (1)
- Jingyi, Zhang (1)
- Jinhai, Zhao (1)
- Jinping, Wei (1)
- Jintao, Wen (1)
- Joon, Kim Hak (1)
- Jun, Dai (1)
- Jun, Liu (1)
- Junhua, Xiong (1)
- Junru, Li (1)
- Junrui, Chai (1)
- Kang, C.H. (1)
- Kawasaki, S. (1)
- Kazuo, Tani (1)
- Khan, K. (2)
- Khosravi, A. (1)
- Kim, Bo-Hyun (1)
- Kinoshita, N. (1)
- Konecny, P. (1)
- Kozusnikova, A. (1)
- Kozyrev, A.A. (1)
- Kramadibrata, S. (1)
- Kubota, S. (1)
- Kusumi, H. (1)
- Kwon, S. (1)
- Lan, S.R. (1)
- Leal-Gomes, M.J. (1)
- Lee, Chung-In (4)
- Lee, Hee-Suk (1)
- Lee, Hi-Keun (1)
- Lee, P.K. (2)
- Lee, Youn-Kyou (1)
- Lemos, J.V. (1)
- Li, H.B. (1)
- Li, L. (2)
- Li, X. (1)
- Li, X.B. (2)
- Lili, Song (1)
- Lim, C.H. (1)
- Limin, Peng (1)
- Linde, Yang (2)
- Ling, Xu (1)
- Liu, D.S. (2)
- Liu, J.F. (1)
- Liuqing, Hu (1)
- Lixing, Huang (1)
- Lizhong, Tang (1)
- Lok, T.S. (3)
- Lu, M. (1)
- Luong, M.P. (1)
- Ma, Jinrong (1)
- Manchao, He (3)
- Maoyu, Cui (1)
- Maranini, E. (1)
- Masoudi, Reza (1)
- Matsui, K. (2)
- Matsuki, K. (2)
- Meifeng, Cai (1)
- Meiying, Ding (1)
- Melli, Zhan (1)
- Mian, Chen (1)
- Mijia, Yang J. (1)
- Min, K.B. (1)
- Mingqing, You (1)
- Mingrong, Amei (1)
- Mingxin, Xu (1)
- Mingxiong, Chen (1)
- Mitani, Yasuhiro (3)
- Miura, K. (1)
- Miyauchi, Shigeyuki (1)
- Mizokami, T. (1)
- Momiyama, Y. (1)
- Moosavi, M. (1)
- Moosavi, Mahdi (1)
- Mowen, Xie (1)
- Nakai, T. (1)
- Nakamura, M. (2)
- Nishiyama, S. (1)
- Nozaki, _ (1)
- Nuantang, Wang (1)
- Ohnishi, Y. (1)
- Ohtsu, H. (1)
- Okabe, N. (1)
- Okub0, S. (1)
- Okubo, Seisuke (1)
- Okuda, Y. (1)
- Okumura, K. (1)
- Ong, H.L. (1)
- Oreste, Pier Paolo (1)
- Panin, V.I. (1)
- Park, Chan (1)
- Park, Chul-Whan (1)
- Park, Chulwhan (1)
- Park, J.H. (1)
- Park, Yeon-Jun (1)
- Peglas, T.W. (1)
- Pelizza, Sebastiana (1)
- Ping, Cao (1)
- Ping, Xu (1)
- Pingbo, Ma (1)
- Pinto, F. (1)
- Prochazka, Liu (1)
- Prochazka, P. (1)
- Qian, Gao (1)
- Qian, Sheng (1)
- Qiang, Yang (1)
- Qihua, Zhang (1)
- Qing, Wang (1)
- Qingwen, Ren K. (1)
- Qiuhua, Rao (2)
- Quanchen, Gao (1)
- Quansheng, Liu (1)
- Rai, Ma (1)
- Ran, Zhang Chao (1)
- Rasche, H. (1)
- Refer, _ (1)
- Rongfu, Jiang (1)
- Ronggui, Deng (1)
- Ruoqiong, Yang (1)
- Ryu, M. (1)
- Sakaguchi, K. (2)
- Sakurai, S. (1)
- Sarma, A.K. (1)
- Sasaoka, T. (1)
- Satoh, H. (1)
- Sengquan, Yang (1)
- Sg, Chen (1)
- Shanzhou, Ma (1)
- Shaohui, He (1)
- Shaojun, Li (2)
- Shicheng, Zhang (1)
- Shigui, Du (1)
- Shimada, H. (2)
- Shin, Hee-Soon (1)
- Shin, Il-Jae (1)
- Shiping, Li (1)
- Shouji, Du (1)
- Shouju, Li (1)
- Shuanghong, Wang (1)
- Shucai, Li (1)
- Shufa, Wang (1)
- Shuilin, Wang (1)
- Simon, R. (1)
- Son, Bongki (1)
- Song, Won-Kyong (1)
- Songlin, Xu (1)
- Songllng, Xu (1)
- Sousa, L.R. (1)
- Stephansson, O.J. (1)
- Stillborg, Bengt (1)
- Stryczek, St. (1)
- Suhai, Wang (1)
- Sunwoo, Choon (1)
- Synn, Joong-Ho (2)
- Szymakowski, J. (1)
- Takahashi, M. (1)
- Tan, C.E. (2)
- Tan, K.H. (2)
- Tanabashi, Y. (1)
- Tanimoto, C. (1)
- Tao, Feng (1)
- Tavakol, M. Taheri (1)
- Tham, L. (1)
- Tham, L.G. (1)
- Tingjie, Li (2)
- Tsui, Y. (2)
- Vargas, E. (2)
- Weiyuan, Zhou (2)
- Wen, Wu (2)
- Xiaoming, Sun (2)
- Xiating, Feng (5)
- Yamaguchi, Y. (2)
- Yang, Hyung-Sik (2)
- Yezhi, Sun (2)
- Yonghua, Su (2)
- Youliang, Zhang (2)
- Yuesheng, Wang (2)
- Yujing, Jiang (2)
- Zhao, J. (3)
- Zhao, P.J. (2)
- Zimao, Zhang (2)
- Zongqi, Sun (3)

**Concept Tag**

- analysis (33)
- application (7)
- arc (13)
- Artificial Intelligence (28)
- Behavior (5)
- boundary (9)
- capacity (6)
- cavern (5)
- Clement (10)
- coal (5)
- coefficient (7)
- complex reservoir (5)
- compression (5)
- condition (19)
- construction (15)
- construction materials (5)
- coordinate (5)
- correlation (5)
- crack (12)
- criterion (6)
- curve (7)
- damage (9)
- deformation (30)
- design (10)
- direction (6)
- displacement (33)
- distribution (10)
- effect (11)
- Engineering (12)
- equation (18)
- excavation (18)
- factor (9)
- failure (23)
- field (9)
- flow in porous media (6)
- Fluid Dynamics (8)
- fracture (19)
- function (6)
- granite (10)
- ground transportation (8)
- health safety security environment and social responsibility (6)
- hole (7)
- Horizontal (5)
- hydraulic fracturing (17)
- increase (13)
- information technology software (7)
- IT software (7)
- laboratory (6)
- Load (9)
- loading (18)
- machine learning (10)
- management and information (37)
- mass (8)
- material (10)
- matrix (6)
- mechanical property (7)
- metals & mining (11)
- method (32)
- model (30)
- permeability (8)
- point (10)
- problem (8)
- process (8)
- property (10)
- rail transportation (7)
- relationship (7)
- Reservoir Characterization (98)
- reservoir description and dynamics (115)
- reservoir geomechanics (35)
- rock (79)
- rock mass (27)
- sample (14)
- sandstone (8)
- seismic processing and interpretation (9)
- shear (14)
- slope (17)
- specimen (26)
- stability (18)
- stability analysis (7)
- strain (18)
- strength (25)
- stress (59)
- structural geology (24)
- structure (12)
- study (7)
- support (11)
- surface (17)
- system (17)
- tensile (9)
- test (29)
- theory (7)
- triaxial (6)
- tunnel (24)
- Upstream Oil & Gas (98)
- variation (6)
- water (11)
- Wave (6)
- well completion (19)
- Wellbore Design (8)
- wellbore integrity (6)

**File Type**

The present paper points out that the earth-nail

The bolt supporting for reinforcing the ground excavation works originated first in 1960, of which the essential idea is to reinforce the rockmass or soilmass so as to increase their self-supporting ability. Man who simply believes the law of the mechanical behavior of the rockmass or soilmass started excavating and constructing slope works without supports occasionally since ancient times. Not until the 20th century did the bolt supporting come into wide and successful uses and meantime a mass of researchers and engineers conducted thorough studies of the reinforcing mechanism of bolts, reaching the following unanimous knowledge: (I) The compound stucture of rockmass-bolt or soilmass-bolt increases the strength of the mass; (2) The interaction between rockmass (soil mass) and bolts improves the force-bearing state of the mass; (3) The bolting support structure makes use of the time-space effect of rockmass (soil mass) scientifically, thus limiting and controlling the rock or soil media deformation within an allowable range; . . (4) It is more rational to use the nonlinear large deformation theory for studying the mechanical behavior of soft rockmass or soilmass; (5) Unreasonable construction technology will result in the stability failure of an engineering project. It was reported that Frenchman once introduced the earth-bolt to reinforce the cut slope of railways in 1972 and gave it the name of earth-nail. Since then the earth-bolt has been called the earth-nail by some scholars. In fact, both earth-bolt and earth nail are a supporting member under similar definition that belongs to the same attribute, in other words, the definition of the earth-nail is ambiguous, having no clear mark to show the character of itself. Traditionally, by the earth-nail, man means the steel bar that is driven or pressed into the soil mass, there is no other material between the nail and the mass. Some researchers suggest the distinctions between earth bolt and earth-nail as follows: (I) The earth-bolt is usually prestressed but the earth-nail is not; (2) The earth-bolt is subject to forces only within its anchored length but the earth-nail bears forces within the whole length .

ISRM-ARMS2-2001-146

ISRM International Symposium - 2nd Asian Rock Mechanics Symposium

author, construction, deformation, Discussion, earth-nail wall, Engineering, engineering practice, excavation, ground excavation, ground excavation work, ground transportation, method, place, process, rail transportation, Reservoir Characterization, reservoir description and dynamics, soilmass, stress, surface, theory

This paper studies the deformation localization of rock by theory and experiments. The deformation fields on the rock surface are traced quantitatively by the white light digital speckle correlative method. The localization banding width of rock has been

ISRM-ARMS2-2001-024

ISRM International Symposium - 2nd Asian Rock Mechanics Symposium

SPE Disciplines:

ISRM-ARMS2-2001-107

ISRM International Symposium - 2nd Asian Rock Mechanics Symposium

Artificial Intelligence, Clement, coal, component, displacement, displacement component, face, function, gis raster digitized, Influence, information management, information technology software, IT software, management and information, method, mining, Modeling & Simulation, predict mining subsidence, prediction, raster digitized, Software Engineering, spatial reasoning, stress, subsidence

Industry:

- Information Technology > Software (1.00)
- Materials (0.89)

Technology:

ISRM-ARMS2-2001-116

ISRM International Symposium - 2nd Asian Rock Mechanics Symposium

SPE Disciplines: Reservoir Description and Dynamics > Reservoir Characterization > Reservoir geomechanics (1.00)

Weiyuan, Zhou (Dept. of Hydraulic Engineering, Tsinghua University) | Yuangao, Liu (Dept. of Hydraulic Engineering, Tsinghua University) | Yaoru, Liu (Dept. of Hydraulic Engineering, Tsinghua University) | Ruoqiong, Yang (Dept. of Hydraulic Engineering, Tsinghua University)

To make the problem clearer, a flow chart for nonlinear numerical simulation analysis is presented in Fig.l First of all, two items should be discussed below:

ISRM-ARMS2-2001-061

ISRM International Symposium - 2nd Asian Rock Mechanics Symposium

abutment, analysis, capacity, crack, dam, dam stability-evaluation, discontinuous bifurcation, failure, Load, localization, management and information, model, numerical simulation, numerical simulation method, process, reservoir description and dynamics, reservoir simulation, rock, stability, structure, tensor

SPE Disciplines:

Bingxiang, Chen (The 16th engineering bureau of China Railway Construction Corporation) | Suhai, Wang (The 16th engineering bureau of China Railway Construction Corporation) | Yuexia, Zhao (The 16th engineering bureau of China Railway Construction Corporation)

ISRM-ARMS2-2001-143

ISRM International Symposium - 2nd Asian Rock Mechanics Symposium

3.2.1 The single threshold theory Heavily affect their failure or deformation.

ISRM-ARMS2-2001-131

ISRM International Symposium - 2nd Asian Rock Mechanics Symposium

acceleration, analysis, Artificial Intelligence, critical frequency band, Engineering, evaluate, frequency, health safety security environment and social responsibility, management and information, natural frequency, particle, Reservoir Characterization, reservoir description and dynamics, safety criterion, seismic effect, seismic intensity, seismic wave, structure, system, theory, Upstream Oil & Gas, vibration, vibration safety

SPE Disciplines:

Technology:

Weizhong, Chen (lnstitute of Rock & Soil Mechanics, the Chinese Academy of Sciences) | Weishen, Zhu (lnstitute of Rock & Soil Mechanics, the Chinese Academy of Sciences) | Chongge, Wang (Shandong University of Science & Technology)

ISRM-ARMS2-2001-078

ISRM International Symposium - 2nd Asian Rock Mechanics Symposium

SPE Disciplines: Reservoir Description and Dynamics > Reservoir Characterization > Reservoir geomechanics (0.87)

The discrete element code, UDEC, is specially designed to model jointed rock mass and has been widely used to simulate tunneling, Deep excavations and rock slopes (Cundall 1980, Lemos 1987, Barton et al. 1994). A UDEC model is an assemblage of blocks and contacts, respectively, representing rock material and rock joints. The blocks are further subdivided into triangular finite difference elements to present the deformability of rock material. The rock joints may deform and fail and thus the UDEC provides A way to model possible separation of rock material blocks due to joint failure. Different from other continuity- based numerical methods, more attention should be paid in UDEC modeling to obtain reliable results. E.g., in situ stress is usually not uniform due to the existence of rock joints. Applying a uniform in situ stress to the model does not reach force equilibrium and a consolidation stage is required to avoid extra displacement being transferred to the tunnel excavation stage. To include major joints as more as possible in the model, the model size cannot be so large as other numerical methods do and the hybrid DEM/BEM scheme would be a very practical alternative to limit the model size rather than using traditional fixing condition at far field boundary. Since the UDEC is a 2-D oriented program, 3-D space cannot be physically involved but working face effect must be taken into account when applying shortcrete and rockbolts. This paper is to investigate the UDEC modeling of tunnel excavations and supports. Main considerations in the UDEC modeling are examined including setting of computational model, hybrid DEM/BEM scheme, tunnel excavation and supports, and judgement of tunnel stability.

ISRM-ARMS2-2001-076

ISRM International Symposium - 2nd Asian Rock Mechanics Symposium

SPE Disciplines:

Limin, Peng (CIvil Architectural Engineering College, Changsha Railway University) | Chenghua, Shi (CIvil Architectural Engineering College, Changsha Railway University) | Baochen, Liu (CIvil Architectural Engineering College, Changsha Railway University)

The technology using mortar-bolts to pre-reinforce the surface of shallow tunnel now has been applied to a certain extent. This engineering problem is analyzed in this paper by using spatial elastic-plastic numerical method and coupling with finite element, infinite element and 3-D bolt element. Numerical computation module is developed, and corresponding computational program is complied. The displacement and the stress in the surrounding rock of shallow tunnel pre-reinforced with surface mortar-bolts are analyzed.

The technique of pre-reinforcing with surface mortar-bolts utilized before digging shallow tunnels has many advantages, such as convenient construction, prominent reinforcing effect and economic benefit. It can strengthen the stability of surrounding rock, and it is an assistant construction measure which is valuable to be popularized overall. In railway and highway tunnel construction after the late of the 1980, this technigve has been widely applied. All kinds of numerical methods are widely used in tunnel and underground engineering and they have good conducting effect on the design and construction of many practical engineering. To realize the pre-reinforcing practical effect of surface mortar-bolts acting on allow tunnel stratum, spatial elastic-plastic coupled numerical method together with finite element, infinite element and 3-D bolt element is used in this paper. Numerical computation module is developed and the corresponding computational program is compiled. Then the influence on surface subsidence, stratum moving rule and deformation status of shallow tunnel caused by surface mortar-bolts is discussed and the change of stress states in tunnel surrounding rock is analyzed.

ISRM-ARMS2-2001-075

ISRM International Symposium - 2nd Asian Rock Mechanics Symposium

Thank you!