Large-range soft soil site soil body parameter continuous measurement device

A technology of soil parameters and measuring devices, applied in the field of research, to achieve the effect of reducing time cost and economic cost and improving engineering safety

Pending Publication Date: 2019-10-18
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problem that the existing experimental device cannot realize long-distance measurement of soil parameters along the s...

Method used

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  • Large-range soft soil site soil body parameter continuous measurement device
  • Large-range soft soil site soil body parameter continuous measurement device
  • Large-range soft soil site soil body parameter continuous measurement device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A device for continuous measurement of soil parameters in a large-scale soft soil site, including three parts: a drag structure main body I, a soil parameter measurement system II, and a drag system III;

[0042] The dragging structure main body 1 includes a dragging structure top plate 1, a hollow rib plate 2, a tow cable pull ring 3, a counterweight lead weight 4, a dragging roller 5 and a fixing screw 6; the dragging structure top plate 1 and the hollow rib plate 2 form a dragging structure The outer frame of the main body 1, the front end surface of the hollow rib plate 2 is a curved surface, and the bottom surface of the hollow rib plate 2 has a plurality of grooves, both of which are made of stainless steel; To apply the counterweight lead weight 4, cables can be arranged in the hollow rib plate 2; there are two dragging rollers 5, which are arranged on both sides of the top plate 1 of the dragging structure through fixing screws 6, and the dragging rollers 5 can s...

Embodiment 2

[0050] This embodiment is a continuous measurement device for soil parameters in a large-scale soft soil site. The experimental device provided in this embodiment is simple and can realize continuous measurement of long-distance soil parameters along the formation direction, and can be used to serve underwater pipelines, cables, etc. design and construction of structures.

[0051] refer to figure 1 , 2 , the experimental device for continuously measuring soft soil field parameters along the formation direction provided in this embodiment can be completed by dragging the towing device laterally once. The towing device includes the towing structure top plate 1, the hollow rib plate 2, the towing cable pull ring 3, the counterweight lead weight 4, the towing roller 5, the fixing screw 6, the CPT probe 7, the CPT mounting support 8, the T-bar probe 9, the T-bar -bar installation support 10, tension and pressure sensor 11 and friction plate 12; tension and pressure sensor 11 is r...

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Abstract

The invention belongs to the technical field of the rock-soil, geology and environment and like research, and provides a large-range soft soil site soil body parameter continuous measurement device. The device comprises a dragging structure main body I, a soil body parameter measurement system II and a dragging system III. The device disclosed by the invention breaks through the boundedness that the traditional single-point vertical measurement device cannot acquire the rock stratum layer continuous soil body parameter, the transverse long-distance continuous field measurement of the soil bodystrength, the strain softening and the soil body and structure interface friction effect and like parameters can be accomplished through once dragging test, the measured parameters can be used for guiding the design and construction of the breakwater engineering, the seabed oil and gas pipeline, cable, and optical cable. Along with the increasing of the deep sea oil and gas resource development,the seabed soil body parameter is measured based on the method, and then the device has significance for the design and stability evaluation of the seabed pipeline and seabed cable and like engineering facilities.

Description

technical field [0001] The invention belongs to the research technical field of rock and soil, geology and environment, and relates to a continuous measurement device for soil parameters of a large-scale soft soil site. The device is especially suitable for the design of underwater pipelines and the investigation of soil parameters before construction. Background technique [0002] Accurate measurement of soil parameters is the basis of all engineering implementation. As a kind of bad soil, soft soil generally has the characteristics of high natural water content, large natural void ratio, high compressibility, low shear strength, small consolidation coefficient, long consolidation time, high sensitivity, and poor water permeability. Therefore, the design and construction risks of soft soil sites are relatively high. In engineering practice, accurate measurement of soil parameters in soft soil sites is an important way to reduce engineering risk and optimize engineering des...

Claims

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Application Information

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IPC IPC(8): G01N33/24G01N3/24G01N3/08G01N3/02G01N19/02
CPCG01N3/02G01N3/08G01N3/24G01N19/02G01N33/24G01N2203/0017G01N2203/0019G01N2203/0025
Inventor 于龙韩云瑞杨庆
Owner DALIAN UNIV OF TECH
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