Rock Mechanics and Rock Engineering

Công bố khoa học tiêu biểu

* Dữ liệu chỉ mang tính chất tham khảo

Sắp xếp:  
A force-indentation model for brittle rocks
Rock Mechanics and Rock Engineering - Tập 22 - Trang 127-148 - 1989
S. S. Pang, W. Goldsmith, M. Hood
A force-deformation model is developed for localized loading of brittle rocks that depicts the action of a percussive drill bit. This model consists of a series of successive cycles each of which is composed of a crushing and a chipping phase. Crushing involves the fragmentation or comminution of individual grains or grain clusters and is manifested by an increase in the applied force, while chipp...... hiện toàn bộ
Focal Mechanism of Strong Ground Seismicity Induced by Deep Coal Mining
Rock Mechanics and Rock Engineering - Tập 56 - Trang 779-795 - 2022
Kunbo Wu, Junpeng Zou, Yu-Yong Jiao, Xiufeng Zhang, Chao Wang
In recent years, strong seisms are triggered frequently during deep coal mining process, which seriously threatens the safety of underground miners and ground residents, as well as restricts the productivity and effectiveness of mining activities. It is essential to investigate focal mechanisms and source parameters of seisms for understanding the rock fracturing, the rupture scale and the failure...... hiện toàn bộ
Quantitative Analysis of Anisotropy Effect on Hydrofracturing Efficiency and Process in Shale Using X-Ray Computed Tomography and Acoustic Emission
Rock Mechanics and Rock Engineering - Tập 54 - Trang 5715-5730 - 2021
Peng Guo, Xiao Li, Shouding Li, Wencheng Yang, Yanfang Wu, Guanfang Li
Hydrofracturing technology has become successful in enhancing the permeability of shale gas reservoirs. However, given the geological complexity in the subsurface, considerable challenges remain in quantitatively analyzing the hydrofracture geometry and understanding the anisotropic fracture process. To investigate, we conducted hydrofracturing tests through a horizontal borehole in shale core sam...... hiện toàn bộ
An Elasto-Plastic Damage Model for Rocks Based on a New Nonlinear Strength Criterion
Rock Mechanics and Rock Engineering - Tập 51 - Trang 1413-1429 - 2018
Jingqi Huang, Mi Zhao, Xiuli Du, Feng Dai, Chao Ma, Jingbo Liu
The strength and deformation characteristics of rocks are the most important mechanical properties for rock engineering constructions. A new nonlinear strength criterion is developed for rocks by combining the Hoek–Brown (HB) criterion and the nonlinear unified strength criterion (NUSC). The proposed criterion takes account of the intermediate principal stress effect against HB criterion, as well ...... hiện toàn bộ
PKN Solution Revisit: 3-D Hydraulic Fracture Size and Stress Anisotropy Effects
Rock Mechanics and Rock Engineering - Tập 51 - Trang 653-660 - 2017
Jincai Zhang, Yushuai Zhang, Shangxian Yin
Numerical Investigation on Anisotropy and Shape Effect of Mechanical Properties of Columnar Jointed Basalts Containing Transverse Joints
Rock Mechanics and Rock Engineering - Tập 55 - Trang 7191-7222 - 2022
Yongyi Wang, Bin Gong, Chun’an Tang
We studied the non-linear mechanical response and failure mechanism of columnar jointed basalts (CJBs) with transverse joints by modeling meso-mechanics, statistical damage theory and continuum mechanics. The anisotropy and shape effect of CJBs with transverse joints were captured under different lateral pressures. The digital images were transformed into heterogeneous element meshes, and the grad...... hiện toàn bộ
Elastoplastic Damage Behavior of Rocks: A Case Study of Sandstone and Salt Rock
Rock Mechanics and Rock Engineering - Tập 56 - Trang 5621-5634 - 2023
Xiangsheng Chen, Yinping Li, Lihong Tong, Daxin Geng, Zhikai Dong, Peiliang Yang
Experimental results provide strong evidence that the deformation and strength of rocks are closely related to the damage suffered during loading. The classic constitutive models such as Mohr–Coulomb criterion and the Drucker–Prager criterion are usually unable to describe the non-linear deformation behavior of rocks, including strain hardening and softening. Their applications in numerical analys...... hiện toàn bộ
A Three-Dimensional (3D) Semi-analytical Solution for the Ultimate End-Bearing Capacity of Rock-Socketed Shafts
Rock Mechanics and Rock Engineering - - 2022
Zilin Li, Hehua Zhu, Lianyang Zhang
The Applicability of the Ground Response Curve to Tunnelling Problems that Violate Rotational Symmetry
Rock Mechanics and Rock Engineering - Tập 45 - Trang 1-10 - 2011
R. Schürch, G. Anagnostou
The applicability limits of the closed-form solution to the problem of ground response to tunnelling are sounded out by systematically investigating the effect of deviations from some of the important assumptions underlying the closed-form solution. The ground response curve (GRC) expresses the relationship between tunnel support pressure and the radial displacement of the tunnel boundary on the b...... hiện toàn bộ
In-situ Measurements of Cutter Forces on Boring Machine at Äspö Hard Rock Laboratory Part II. Characteristics of Cutter Forces and Examination of Cracks Generated
Rock Mechanics and Rock Engineering - Tập 36 - Trang 63-83 - 2003
Z. X. Zhang, S. Q. Kou, P.-A. Lindqvist
By means of spectral analysis, the measured normal forces, tangential forces, and side forces acting on two button cutters on the boring machine in Äspö Hard Rock Laboratory were analysed and the basic characteristics of the cutter forces were determined. After the measurements of the cutter forces, some rock core samples were taken from the bottom and the wall of the test borehole. These samples...... hiện toàn bộ
Tổng số: 3,256   
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 10