Micro-Failure Mechanism Analysis and Test Study for Rock Failure Surface under Water Jet Impact

LI Gen-Sheng; LIAO Hua-Lin

doi:10.11858/gywlxb.2005.04.009

Volume 19 Issue 4

Apr 2015

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Chinese Journal of High Pressure Physics > 2005 > 19(4): 337-342 .

LI Gen-Sheng, LIAO Hua-Lin. Micro-Failure Mechanism Analysis and Test Study for Rock Failure Surface under Water Jet Impact[J]. Chinese Journal of High Pressure Physics, 2005, 19(4): 337-342 . doi: 10.11858/gywlxb.2005.04.009

Citation:

LI Gen-Sheng, LIAO Hua-Lin. Micro-Failure Mechanism Analysis and Test Study for Rock Failure Surface under Water Jet Impact[J]. Chinese Journal of High Pressure Physics, 2005, 19(4): 337-342 . doi: 10.11858/gywlxb.2005.04.009

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Micro-Failure Mechanism Analysis and Test Study for Rock Failure Surface under Water Jet Impact

doi: 10.11858/gywlxb.2005.04.009

LI Gen-Sheng^1
,,
LIAO Hua-Lin²

1.
Faculty of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;
2.
College of Petroleum Engineering, China University of Petroleum, Dongying 257061, China

More Information

Corresponding author: LI Gen-Sheng
Received Date: 19 Oct 2004
Rev Recd Date: 17 Jan 2005
Issue Publish Date: 05 Dec 2005

Abstract

Abstract

The rock breaking mechanism by water jets impact has not been clearly recognized as yet for complicated process of rock damage. The test of cutting rocks with submerged high-pressure water jets impact by a numerical controlling jet cutting machine are conducted. Then, the test for the pattern of failure surface of cutting slots and dilapidated slices are performed with scanning electron microscope (SEM) to study micro failure mechanism of rocks with water jets impinging. The result shows two types of rectangle shape and shallow funnel shape craters in the rock matrixes. The analysis shows that the micro-mechanism of rock failure due to water jets impingement is a brittle fracture in the condition of tensile and shearing stress.
- water jets,
- rock cutting,
- breaking mechanism,
- SEM

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References(12)

References

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Micro-Failure Mechanism Analysis and Test Study for Rock Failure Surface under Water Jet Impact

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