Quality grading method for toppling deformed rock mass

A quality classification and rock mass technology, applied in the field of engineering survey, can solve the problem that the quality level of the dumped deformed rock mass cannot be fully accurately and reasonably reflected

Pending Publication Date: 2022-05-13
POWERCHINA CHENGDU ENG
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  • Claims
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Problems solved by technology

[0007] The invention provides a quality classification method for dumped and deformed rock mass, which solves the problem that the existing rock mass quality classification method cannot reflect the quality grade of dumped and deformed rock mass completely accurately and reasonably

Method used

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  • Quality grading method for toppling deformed rock mass
  • Quality grading method for toppling deformed rock mass
  • Quality grading method for toppling deformed rock mass

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Embodiment Construction

[0040] The quality grading method of the toppling and deformed rock mass of the present invention first takes the rock strength, rock quality index, joint spacing, structural surface properties and rock mass integrity as the basic grading indicators and scores respectively, and uses the toppling fracture opening degree, structural surface The impact of the occurrence on the project and the degree of rock formation dumping are correction factors and are scored separately. Record the score value of rock strength as R1, the score value of rock quality index as R2, the score value of joint spacing as R3, the score value of structural surface properties as R4, and the score value of rock mass integrity as R5, R1~R5 are all positive values, the better the quality of the rock mass, the higher the score. The scoring value of the toppling fracture fracture opening of the rock mass is recorded as D1, the impact of structural surface occurrence on the project is recorded as D2, and the s...

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Abstract

The invention discloses a quality grading method for a toppling deformation rock mass, relates to the field of engineering investigation, and solves the problem that the existing rock mass quality grading method cannot completely, accurately and reasonably reflect the quality grade of the toppling deformation rock mass. According to the technical scheme, the quality grading method for the toppling deformation rock mass comprises the steps that firstly, the rock strength, the rock quality index, the joint spacing, the structural plane character and the rock mass integrity degree serve as basic grading indexes and are graded respectively, and according to the influence of the opening degree of a toppling fracture and the structural plane occurrence on engineering, the quality of the toppling deformation rock mass is graded; the method comprises the following steps of: respectively scoring by taking the rock mass quality grade and the rock stratum toppling degree as correction factors, calculating the total score of the quality grade of the toppled deformed rock mass by summing the score values, and finally dividing the rock mass quality grade according to the total score. The method also recommends how to determine the score value of the basic grading index and how to determine the score value of the correction factor. The method is used for quality grading of the toppling deformation rock mass.

Description

technical field [0001] The invention relates to the field of engineering survey, in particular to a method for classifying the quality of toppled and deformed rock mass. Background technique [0002] In the process of slope engineering investigation and design, the quality classification of slope rock mass is an important survey work content. Reasonable rock mass quality classification can objectively reflect the inherent characteristics of rock mass and help to understand the mechanical properties of rock mass and the macroscopic Analyze the stability of slope rock mass, and choose rock mass parameters reasonably, so as to provide reasonable physical and mechanical parameters of rock mass for slope design. [0003] According to the current "Engineering Rock Mass Classification Standard" (GB / T50218-2014), the quality of rock mass is divided into five grades: I, II, III, IV, and V from good to poor. The classification of rock mass quality in this standard is to determine the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/08G06F17/10G01N3/08
CPCG06Q10/06G06Q50/08G06F17/10G01N3/08
Inventor 张世殊魏星灿肖华波马金根杨静熙冉从彦李青春
Owner POWERCHINA CHENGDU ENG
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