Advances in Rock-Support and Geotechnical Engineering by Shuren Wang, Paul C Hagan, Chen Cao PDF

By Shuren Wang, Paul C Hagan, Chen Cao

ISBN-10: 0128105526

ISBN-13: 9780128105528

ISBN-10: 0128105534

ISBN-13: 9780128105535

Advances in Rock-Support and Geotechnical Engineering brings jointly the newest examine effects in regards to the concept of rock mechanics, its analytical equipment and cutting edge applied sciences, and its purposes in sensible engineering. This booklet is split into six sections, rock exams, rock bolting, grouted anchor, tunneling engineering, slope engineering, and mining engineering.

Coverage contains fracture hinged arching approach and instability features of rock plates, failure modes of rock bolting, scale results, and loading move mechanism of the grouted anchor. additionally lined are contemporary concepts and purposes in tunneling engineering, slope engineering, and mining engineering.

This booklet presents cutting edge, sensible, and wealthy content material that may be used as a beneficial reference for researchers venture tunneling engineering, slope engineering, mining engineering, and rock mechanics, and for onsite technical team of workers and lecturers and scholars learning the subjects in comparable 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 approach 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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Additional resources for Advances in Rock-Support and Geotechnical Engineering

Sample text

In stage C, a through fractured zone appeared on the double-layer rock plates, formed two hinged rock-arch structures, the vertical force presented a step downtrend, and both the tension cracks and shear cracks had an obvious growth trend. 2 mm, and in stage D the vertical force of the double-layer rock plates significantly declined and the cracks in the number of tension and shear maintained stability. 1 Analysis of Rock Particle Radius Changing As shown in Fig. 42, under the boundary condition of both ends fixed and both sides free, the vertical force curves went up first and then down.

52 1. ROCK TESTING medium hard rock, and it had no effect on that of the hard rock and the soft rock. In a word, no matter whether the confined pressure existed or not, the hard rock had the same AE growth rate as that of the soft rock. As shown in Fig. 71A, without the confined pressure, the number of AE was proportional to the cutting depth. The AE growth rate of the hard rock was equal to the soft rock and greater than the medium hard rock. The curves in Fig. 71B showed that three kinds of sandstones AE were proportional to the cutting depth, and had the same slopednamely, the growth rates were equal under the confined pressure.

But there are two significant differences in the curves of the storage moduli of different rocks with temperature change. Under the alternating stress, granite has better impact strength and rigidity relative to the sandstone and mudstone with temperature change. The loss moduli of different rocks decrease with temperature increasing and frequency increasing, and the curves of the loss moduli show obvious fluctuation. Under the alternating stress, with temperature increasing, the curves fluctuation of the loss moduli for granite, sandstone, and mudstone are from weak to strong.

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Advances in Rock-Support and Geotechnical Engineering by Shuren Wang, Paul C Hagan, Chen Cao


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