Comprehensive foundation coefficient testing device and method

A foundation coefficient test and test device technology, which is applied in the field of foundation soil survey, foundation structure engineering, construction, etc., can solve the problem that it is difficult to represent the compaction of the entire road section, the installation of test instruments is inconvenient, and it is difficult to comprehensively explain the detection of the foundation coefficient of the road section, etc. problems, to achieve rapid transfer and continuous operation, improve detection efficiency, and achieve the effect of mobility

Active Publication Date: 2021-06-18
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

[0002] Regarding the number and detection methods of the existing foundation coefficient K30, there are the following defects: each test result can only represent the foundation coefficient of the detection point, and it is difficult to comprehensively explain the foundation coefficient of the detection section; and it is more difficult to represent the number of detection points The compaction of the overall road section; the traditional method of using the road roller as a reaction device, the test equipment is inconvenient to install, and the work efficiency is low; the traditional method can only test the foundation coefficient of one point at a time, and the detection efficiency of the entire road section is low

Method used

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  • Comprehensive foundation coefficient testing device and method

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Embodiment 1

[0051] Such as Figure 1-Figure 3 As shown, the present embodiment provides a comprehensive foundation coefficient test device, the device includes a longitudinal load-bearing steel truss girder 1, a K30 test device 10, a bearing plate 2, a transverse connecting steel truss girder 3 and mobile equipment, the K30 test The device 10 is installed below each span of the longitudinal load-bearing steel truss girder 1, and the K30 test device 10 includes a jack; the bearing plate 2 is installed on the top surface of the longitudinal load-bearing steel truss girder 1, and the Sandbags are evenly arranged on the bearing plate 2; the horizontally connecting steel truss beams 3 are installed between two adjacent pieces of the longitudinal load-bearing steel truss beams 1, and are used to horizontally connect the two pieces of the longitudinal load-bearing steel truss beams 1, The horizontal connecting steel truss beam 3 and the longitudinal load-bearing steel truss beam 1 form a mesh fr...

Embodiment 2

[0060] Such as Figure 6 As shown, this embodiment provides a comprehensive foundation coefficient testing method, which includes step S1, step S2, step S3, step S4 and step S5.

[0061] Step S1, obtaining the first input information, the first input information includes the installation confirmation information of the comprehensive foundation coefficient testing device;

[0062] Step S2. Sending a first control command, the first control command includes an order for the jack to exert pressure on the foundation;

[0063] Step S3, obtaining at least two first test data, the first test data includes the test data of the current detection point collected by the K30 test device, the first test data includes the first measured value of roadbed settlement and the first Subgrade loading stress;

[0064] Step S4: Based on the at least two first test data, calculate the theoretical value of the first subgrade settlement, and calculate the comprehensive value of the currently detecte...

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Abstract

The invention provides a comprehensive foundation coefficient testing device and method. The device comprises longitudinal bearing steel truss beams, K30 testing devices, a bearing plate, transverse connecting steel truss beams and moving equipment, wherein the K30 testing devices are mounted below the midspan of each span of the longitudinal bearing steel truss beams; each K30 testing device comprises a jack; the bearing plate is mounted on the top surfaces of the longitudinal bearing steel truss beams; sand bags are uniformly arranged on the bearing plate; each transverse connecting steel truss beam is mounted between two adjacent longitudinal bearing steel truss beams and is used for transversely connecting the two longitudinal bearing steel truss beams; the transverse connecting steel truss beams and the longitudinal bearing steel truss beams form a net-shaped frame structure; and the moving equipment is used for moving the net-shaped frame structure to a next road section so as to carry out comprehensive foundation coefficient testing on the next road section. Aiming at detection of a comprehensive foundation coefficient, the invention provides a rapid testing device, and the working efficiency of whole-road-section detection is effectively improved.

Description

technical field [0001] The invention relates to the technical field of railway engineering, in particular to a comprehensive foundation coefficient testing device and method. Background technique [0002] Regarding the number and detection methods of the existing foundation coefficient K30, there are the following defects: each test result can only represent the foundation coefficient of the detection point, and it is difficult to comprehensively explain the foundation coefficient of the detection section; and it is more difficult to represent fewer detection points The compaction of the whole road section; the traditional method of road roller as a reaction device, the test equipment is inconvenient to install, and the work efficiency is low; the traditional method can only test the foundation coefficient of one point at a time, and the detection efficiency of the whole road section is low. Contents of the invention [0003] The object of the present invention is to provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D1/00
CPCE02D1/00
Inventor 杨长卫陈桂龙张良苏珂童心豪
Owner SOUTHWEST JIAOTONG UNIV
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