Liquefaction judgment method based on standard penetration and static cone penetration test correlation

A technology of standard penetration test and static penetrating sounding, which is applied in the field of foundation soil survey, foundation structure engineering, construction, etc., and can solve the problems of data not fully functioning and collation

Active Publication Date: 2013-01-09
CEEC JIANGSU ELECTRIC POWER DESIGN INST +1
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However, due to the failure to systematically organize these data in time, many in-situ test

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  • Liquefaction judgment method based on standard penetration and static cone penetration test correlation
  • Liquefaction judgment method based on standard penetration and static cone penetration test correlation
  • Liquefaction judgment method based on standard penetration and static cone penetration test correlation

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[0066] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects proposed by the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. Rear.

[0067] A method for judging liquefaction based on the correlation between standard penetration and static cone penetration test, including the following steps:

[0068] (1) First, determine the selection principle of the test hole of the standard penetration test and the contrast hole of the static cone penetration test;

[0069] (2) Define the representative soil layer, determine the N value corresponding to the standard penetration parameter in each representative soil layer, and determine the cone tip resistance q in the static cone penetration test corresponding to the standard penetration parameter N value c Value and side friction res...

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Abstract

The invention relates to a liquefaction judgment method based on standard penetration and static cone penetration test correlation. A principle of selecting a static cone penetration test contrast hole of a standard penetration test hole and a reading method for a standard penetration parameter value N and a static cone penetration parameter tip resistance value qc are provided; three influence factors of clay content rhoc, average particle size D50 and soil parameter alphap are considered, the value N and the value qc are fitted, and a statistically correlative relationship of N-qc is provided; and on the basis, a foundation soil liquefaction judgment method based on a static cone penetration test is provided. By the method, the liquefaction judgment of foundation soil can be made relatively quickly and accurately; and compared with the conventional method, the method is simple, economic and quick, and has a good engineering application value.

Description

Technical field [0001] The invention relates to a method for judging liquefaction based on the correlation between standard penetration and static cone penetration tests, and belongs to the field of judging ground soil liquefaction. Background technique [0002] At present, the standard penetration test is the most widely used and standardized method in the field of discrimination of foundation soil liquefaction. The biggest advantage of this method is that it can collect soil samples for indoor tests at the same time during the test process. Its disadvantage is that it requires manpower, Material and financial resources require a large investment, and its parameter standard penetration parameter N value is highly discrete. The static cone penetration test is widely used in our country, has good stability, is simple and economical, can obtain continuous information of the soil layer, and can detect very weak thin layers. The disadvantage of this method is that it cannot collect ...

Claims

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Application Information

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IPC IPC(8): E02D1/00
Inventor 赵学亮陈念军黄志宏任亚群刘欣良龚维明马骁孙焯宋志远刘益平王先勇贾尚瑞
Owner CEEC JIANGSU ELECTRIC POWER DESIGN INST
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