Soil layer equivalent shear wave velocity and soil layer reflecting interface buried depth measuring method

A measurement method, shear wave technology, applied in the field of earthquake engineering, can solve the problem of lack of measurement of the buried depth of the reflection interface of the shear wave reflection wave group in the soil layer

Active Publication Date: 2016-11-09
GEOPHYSICAL EXPLORATION CENT CHINA EARTHQUAKE ADMINISTATION
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Problems solved by technology

[0010] Currently, v in formula (2) 0 There are few cases where the value of is directly derived from the borehole shear wave velocity test data. The reason is that there is no spe...

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  • Soil layer equivalent shear wave velocity and soil layer reflecting interface buried depth measuring method
  • Soil layer equivalent shear wave velocity and soil layer reflecting interface buried depth measuring method
  • Soil layer equivalent shear wave velocity and soil layer reflecting interface buried depth measuring method

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Embodiment Construction

[0019] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] Depend on Figure 1-Figure 3 Provide, measuring method of the present invention, concrete steps are as follows:

[0021] (1) According to the seismic engineering geological conditions of the site, the seismic engineering geological units of the site are divided, and the method is:

[0022] A. Collect the existing seismic engineering geological condition data of the site, or conduct seismic engineering geological condition investigation, survey or drilling shear wave velocity test on the site to obtain the site seismic engineering geological condition data, the site seismic engineering geological condition data is the site Geomorphic unit type, site groundwater type and depth of groundwater level of single hole, thickness of cover layer of single hole site, geological origin type of horizontal soil layer at different dept...

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Abstract

The invention relates to a soil layer equivalent shear wave velocity and soil layer reflecting interface buried depth measuring method. The mathematical model of the relationship between soil layer shear wave velocity and buried depth and the fitting parameters are directly used to measure soil layer equivalent shear wave velocity and soil layer reflecting interface buried depth. Seismic engineering geological units are divided according to site seismic engineering geological conditions. In the same seismic engineering geological unit, soil layer shear wave velocity data are calculated to establish the mathematical model of the relationship between soil layer shear wave velocity and buried depth and the fitting parameters. The fitting parameters are substituted into a soil layer equivalent shear wave velocity calculation mode corresponding to the mathematical model of the relationship between soil layer shear wave velocity and buried depth to acquire the soil layer equivalent shear wave velocity of the seismic engineering geological unit. The fitting parameters are substituted into a soil layer reflecting interface buried depth calculation mode corresponding to the mathematical model of the relationship between soil layer shear wave velocity and buried depth to acquire the soil layer reflecting interface buried depth. According to the invention, the convenience and accuracy of soil layer equivalent shear wave velocity and soil layer reflecting interface buried depth measuring are improved.

Description

technical field [0001] The invention relates to the field of earthquake engineering, in particular to a method for measuring the equivalent shear wave velocity of the soil layer and the buried depth of the reflection interface of the soil layer. Background technique [0002] The equivalent shear wave velocity of the soil layer is one of the important parameters in earthquake engineering, which is mainly used for the classification of building sites, thus providing a basis for the seismic design of buildings. The buried depth of the reflection interface of the soil layer is one of the important results of seismic exploration, and it mainly serves to find out the underground geological structure (including active faults) and minerals. [0003] According to my country's current code for seismic design of buildings (GB 50011-2010), 2010), the site category of the building should be divided according to the equivalent shear wave velocity of the soil layer and the thickness of the...

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Application Information

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IPC IPC(8): G01V1/28
CPCG01V1/282
Inventor 贺为民
Owner GEOPHYSICAL EXPLORATION CENT CHINA EARTHQUAKE ADMINISTATION
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