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Ocean engineering rock mass quality scoring methods based on simple testing and fine testing

A technology for marine engineering and rock mass quality, which is applied in the direction of measuring devices, soil material testing, and the use of stable tension/pressure test material strength, etc., which can solve the problems of poor applicability of marine engineering rock mass quality evaluation

Inactive Publication Date: 2020-04-17
SOUTHEAST UNIV
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Problems solved by technology

The traditional rock mass quality classification method is mainly aimed at land engineering rock mass, and the complex construction environment and evaluation test conditions of marine rock mass engineering have strong particularity. The traditional method is not suitable for the quality evaluation of marine engineering rock mass. has many deficiencies

Method used

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  • Ocean engineering rock mass quality scoring methods based on simple testing and fine testing
  • Ocean engineering rock mass quality scoring methods based on simple testing and fine testing
  • Ocean engineering rock mass quality scoring methods based on simple testing and fine testing

Examples

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Embodiment 1

[0033] Embodiment 1: Taking the marine rock mass survey of an actual project as an example, point load test, direct observation and longitudinal wave velocity test are carried out on the project site.

[0034] Based on the results of the above tests, a simple test is performed on the marine engineering rock mass, and the specific steps are as follows:

[0035] ① Calculation of quick rock strength score Q F1 , based on the point load intensity index I obtained from the field point load test s50 is 6.84, calculate Q F1 =1.12×(15.25×I s50 ) 0.65 =23.

[0036] ② Calculation of rock quality index score Q RQD , according to on-site observation, calculate the ratio of the accumulated length of the columnar core equal to or greater than 10cm in each footage to the ratio of each drilled footage to obtain RQD=67 of the rock sample, and calculate Q RQD =0.3×RQD=20.

[0037] ③ Calculate the wave speed score Q w , based on the field single-hole wave velocity test, the elastic longitu...

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Abstract

The invention discloses ocean engineering rock mass quality scoring methods based on simple testing and fine testing. Aiming at the particularity of ocean rock mass engineering, the invention providestwo specific ocean engineering rock mass scoring methods, and the method comprises the steps: firstly, carrying out on-site point load testing, direct observation and longitudinal wave velocity testing to quickly obtain a preliminary ocean engineering rock mass quality score; subsequently, performing a uniaxial compressive strength test, a quantitative statistical test, a qualitative descriptiontest, a longitudinal wave velocity test, a rock disintegration resistance test and other fine tests on ocean engineering rock mass to form a more accurate oceanographic engineering rock mass quality score. The method has the advantages that the method has sufficient theoretical basis and practical value, rapid, simple and convenient testing and accurate fine testing are combined, reliable scoringparameters and technical support are provided for foundation design and construction of ocean rock mass engineering, operability is high, and the obtained scores are real and reliable.

Description

technical field [0001] The invention belongs to the technical field of marine rock mass engineering, and in particular relates to a method for scoring the quality of marine engineering rock mass based on simple and precise tests. Background technique [0002] In marine rock mass engineering, due to the particularity of seawater components, marine engineering rock mass generally interacts with seawater for a long time, which has many adverse effects on the strength and discontinuity of marine engineering rock mass. Therefore, it has far-reaching engineering significance to evaluate the quality of marine engineering rock mass. The traditional rock mass quality classification method is mainly aimed at land engineering rock mass, and the complex construction environment and evaluation test conditions of marine rock mass engineering have strong particularity. The traditional method is not suitable for the quality evaluation of marine engineering rock mass. There are many deficie...

Claims

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Application Information

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IPC IPC(8): G01N33/24G01N3/08
CPCG01N3/08G01N33/24G01N2203/0019G01N2203/0218G01N2203/0252
Inventor 张琦张斌赵学亮张宸浩张九媛朱星虎赵鑫喆刘婵
Owner SOUTHEAST UNIV
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