A Method for Evaluating the Strength Parameters of Cohesive Soil in Different Sea Areas of my country
A technology of cohesive soil and parameters, applied in the direction of strength characteristics, using a stable shear force to test the strength of materials, soil material testing, etc., can solve problems such as poor accuracy
Active Publication Date: 2021-05-11
BC P INC CHINA NAT PETROLEUM CORP +2
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Problems solved by technology
Due to the relatively late start of domestic marine static penetration technology, the technology and experience can not meet the requirements of domestic marine development. At present, most of our country adopts imported foreign equipment and result interpretation methods to analyze the strength parameters of soil in various domestic sea areas, and the accuracy is relatively high. Difference
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[0064] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0065] figure 1 It is a schematic flow chart of a method for evaluating the strength parameters of cohesive soil in different sea areas of my country in the embodiment of the present invention, combining figure 1 , the method includes:
[0066] S1: Obtain a seabed cohesive soil sample;
[0067] S2: Determine the undrained shear strength S of the obtained seabed cohesive soil sample u ;
[0068] S3: re-preparing the seabed cohesive soil sample to obtain rem...
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The invention relates to the technical field of marine engineering survey, in particular to a method for evaluating the strength parameters of cohesive soil in different sea areas in my country. The present invention obtains the undrained shear strength of the sample and the sensitivity of the soil body by means of experiments, and then utilizes the empirical formula to determine the empirical coefficient N in the empirical formula ke and N s , using the obtained empirical coefficient N ke and N s The undrained shear strength and soil sensitivity of the undisturbed cohesive soil below the surface of the seabed in the same site can be obtained, and then the analysis method applicable to the strength parameters of the undisturbed cohesive soil in different sea areas of my country can be finally determined, providing a basis for the design and construction of marine structures. The reasonable and reliable basis solves the problem of inaccuracy in determining the strength parameters of cohesive soils in various sea areas in my country directly by using foreign static sounding results interpretation methods.
Description
technical field [0001] The invention relates to the technical field of marine engineering survey, in particular to a method for evaluating the strength parameters of cohesive soil in different sea areas in my country. Background technique [0002] With the development and utilization of my country's marine resources, marine structures have been continuously constructed, such as offshore wind turbines, offshore platforms, submarine pipelines, and submarine optical cables. The design and construction of the above structures all involve the interaction between the foundation and the foundation. Although there are great differences in the foundation forms of various structures, it is necessary to determine the mechanical properties of the soil within a certain depth range below the seabed surface, and then analyze the stability of the location of the marine structure. [0003] Marine static penetration testing technology is an in-situ testing method that combines the advantages ...
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IPC IPC(8): G01N3/24G01N33/24
CPCG01N3/24G01N33/246G01N2203/0025
Inventor 邓海峰祁磊许浩刘振纹罗小桥
Owner BC P INC CHINA NAT PETROLEUM CORP