Comprehensive test method for testing stability characteristic of side slope

A comprehensive test and slope technology, applied in soil material testing, strength characteristics, vibration testing, etc., can solve the problems of limited interpretation depth and limited conclusions of rock and soil mass in slopes

Inactive Publication Date: 2020-03-31
青岛瑞源工程集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The current static test and dynamic test are carried out separately, and the comparative research on static and dynamic aspects mainly focuses on the direct comparative analysis of static test results and dynamic test results, and since dynamic test and static test are carried out separately Yes, the conclusions drawn after the comparison are often limited, and the depth of interpretation for the deformation and instability of the rock and soil mass of the slope is limited.

Method used

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  • Comprehensive test method for testing stability characteristic of side slope
  • Comprehensive test method for testing stability characteristic of side slope
  • Comprehensive test method for testing stability characteristic of side slope

Examples

Experimental program
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Effect test

Embodiment 1

[0020] A comprehensive test method for testing slope stability characteristics, including in-situ test steps, indoor test steps and fitting analysis stages, characterized in that:

[0021] Step 1: In-situ test step, first determine the engineering slope to be tested, drill a number of installation holes evenly along the slope slope at a depth of 3 meters, and bury a vibrator at the bottom of the hole. The vibrator and oscilloscope device store and collect waveform data, obtain the formation data of the slope through waveform identification and data analysis, and update the in-situ waveform data once a week during the test period, obtain the wave velocity curve and the thickness of the overburden layer, and Resilience modulus of slope soil layer, according to the empirical formula:

[0022] E. 0 =6.97×10 -5 V 2.7

[0023] E0 is the modulus of resilience;

[0024] V is the formation average shear wave velocity;

[0025] Step 2: Indoor test step, select in-situ samples of d...

Embodiment 2

[0044] The following examples are all controlled reference tests, and the test results show that the method of Example 1 is completely correct and more accurate.

[0045] Example 1

[0046] A comprehensive test method for testing slope stability characteristics, including in-situ test steps, indoor test steps and fitting analysis stages, characterized in that:

[0047] Step 1: In-situ test step, first determine the engineering slope to be tested, drill a number of installation holes evenly along the slope slope at a depth of 3 meters, and bury a vibrator at the bottom of the hole. The vibrator and oscilloscope device store and collect waveform data, obtain the formation data of the slope through waveform identification and data analysis, and update the in-situ waveform data once a week during the test period, obtain the wave velocity curve and the thickness of the overburden layer, and Resilience modulus of slope soil layer, according to the empirical formula:

[0048] E. 0...

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Abstract

The invention aims to provide a comprehensive test method for testing the stability characteristic of a side slope. The in-situ test and the indoor test are combined, by utilizing the technical methodprovided by the invention, the physical property, the mechanical property, the hydraulic property and the like of the slope rock-soil body can be accurately tested by a comprehensive test method of an in-situ test and an indoor test, and the result can reflect the load bearing course of the slope rock-soil body more truly. According to the invention, a pre-vibration load can be applied to varioussamples with different sizes such as a conventional permeability test sample, a triaxial test sample, a direct shear test sample, a consolidation test sample and the like, and parameters of a soil layer are obtained through data fitting analysis.

Description

technical field [0001] The invention relates to the technical field of testing the physical characteristics of slope rock and soil, in particular to a comprehensive test method for testing the stability characteristics of slopes. Background technique [0002] In geotechnical engineering investigation, the physical and mechanical properties and chemical properties of slope rock and soil mass play a vital role in the design and construction of geotechnical engineering. At present, the physical and mechanical properties test methods of slope rock and soil include on-site test methods and indoor test methods. The on-site test mainly uses some on-site monitoring instruments or on-site test equipment to directly test the physical and mechanical properties. Indoor testing methods include physical property testing, static characteristic testing and dynamic characteristic testing, etc. The physical property test mainly obtains the basic physical properties of the slope rock and soil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01N3/24G01N15/08G01M7/02
CPCG01N33/24G01N3/24G01N15/08G01M7/00G01N2203/0025G01N2203/0256
Inventor 孟宪伟徐贞社张泉成吴业聃谭希鹏崔恒崔凤笠朱新磊
Owner 青岛瑞源工程集团有限公司
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