By Shuren Wang, Paul C Hagan, Chen Cao
Advances in Rock-Support and Geotechnical Engineering brings jointly the most recent learn effects concerning the concept of rock mechanics, its analytical equipment and cutting edge applied sciences, and its functions in functional engineering. This ebook is split into six sections, rock exams, rock bolting, grouted anchor, tunneling engineering, slope engineering, and mining engineering.
Coverage comprises fracture hinged arching technique and instability features of rock plates, failure modes of rock bolting, scale results, and loading move mechanism of the grouted anchor. additionally coated are contemporary techniques and purposes in tunneling engineering, slope engineering, and mining engineering.
This e-book presents leading edge, sensible, and wealthy content material that may be used as a useful reference for researchers venture tunneling engineering, slope engineering, mining engineering, and rock mechanics, and for onsite technical group of workers and lecturers and scholars learning the subjects in similar universities.
- Enriches new theories on failure modes of rock plates, rock bolting mechanisms, and anchor loading transfer
- Develops new equipment of comparing the soundness of slope engineering and the roof balance of the mined-out areas
- Includes fracture hinged arching procedure and instability features of rock plates, failure modes of rock bolting, scale results, and loading move mechanism of the grouted anchor
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Extra info for Advances in Rock-Support and Geotechnical Engineering
Zhang et al. (2010a,b) studied the thermal damage properties and analyzed the stressestrain curve, peak stress, modulus of elasticity of marble at high temperature. Xi 33 et al. (2011) researched the variations of traveling wave energy attenuation, imaginary modulus, elastic modulus, and elastic wave velocity with temperature or frequency of the saturated sandstones under uniaxial cyclic loading. Zhang and Gao (2012) carried out tests on the red sandstones under cyclic loadingeunloading uniaxial compression with different loading rates, and obtained the evolution and distribution laws of energy with stress in the red sandstones.
Eq. 4) could transform the strain energy of the double-layer rock plates system into the entropy value; that is, the strain energy entropy could be used to describe the strain energy distribution of the double-layer rock plates system to reﬂect the change process of the system state. 2 Energy Dissipation Characteristics of the Plates System As shown in Fig. 35, ﬁve monitoring points were installed in the double-layer rock plates, and each monitoring site could detect the strain energy change within the scope of the sphere.
04 Sandstone (dark red) Mudstone (brown gray) The dry granite, sandstone, and mudstone were respectively selected at room temperature and were processed into rectangular columnar samples (80-mm length, 6-mm width, and 5-mm height). For each rock, at least two samples were processed. 3. 2 Experiment Principle Dynamic thermomechanical analysis method is a testing technique, that is, under the controlled temperature conditions, used to measure the relationship between dynamic modulus, energy loss, and temperature of the test materials under the dynamic loading.