Unlock instant, AI-driven research and patent intelligence for your innovation.

A test device and test method for simulating the scour effect of pipeline water flow in rock and soil

A testing method and testing device technology, applied in soil testing, material inspection products, etc.

Active Publication Date: 2020-11-17
SICHUAN UNIV
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to relevant literature at home and abroad, the research on pipeline flow rarely considers the drag force effect of water flow on the pipeline wall

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A test device and test method for simulating the scour effect of pipeline water flow in rock and soil
  • A test device and test method for simulating the scour effect of pipeline water flow in rock and soil
  • A test device and test method for simulating the scour effect of pipeline water flow in rock and soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Utilize the test device of the present invention to simulate the scour effect of pipeline water flow in the rock and soil mass according to the following steps to measure the drag force produced by the water flow on the wall surface of the circular pipeline:

[0032] (1) select the experimental site, and install the above-mentioned test device for simulating the scour effect of the pipeline flow in the rock and soil mass;

[0033] (2) according to the geologic condition to be tested, one deck of sand cushion 21 is laid on the base plate according to the principle of similar size, on the sand cushion 21, a concrete layer 22 is laid to simulate the rock formation, and the through pipeline 3 is arranged in the inside of the concrete layer 22, and the cross section of the pipeline is Round, the inner wall of the penetrating pipe 3 is provided with a silty clay filling layer 23 for simulating pipe filling. Then use the configured water blocking plug 33 to block the downstrea...

Embodiment 2

[0040] Utilize the test device of the present invention to simulate the scour effect of pipeline water flow in the rock and soil mass according to the following steps to measure the drag force produced by the water flow on the wall surface of the rectangular pipeline:

[0041] (1) select the experimental site, and install the above-mentioned test device for simulating the scour effect of the pipeline flow in the rock and soil mass;

[0042] (2) according to the geologic condition to be tested, one deck of sand cushion 21 is laid on the base plate according to the principle of similar size, on the sand cushion 21, a concrete layer 22 is laid to simulate the rock formation, and the through pipeline 3 is arranged in the inside of the concrete layer 22, and the cross section of the pipeline is Rectangular, through the inner wall of the pipeline 3, a silty clay filling layer 23 for simulating pipeline filling is provided. Then use the configured water blocking plug 33 to block the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a technology for testing a slope stability affection factor, and concretely discloses a test device for simulating pipeline water scouring effect in a rock and soil body. Thetest device comprises a base plate and a simulated rock and soil layer internally provided with a through pipeline and arranged on the base plate, the base plate comprises a fixed end and a lifting end, the fixed end is fixed by a horizontal shaft and can rotate around the horizontal shaft, the lifting end is connected with a lifting device, and the lifting device can continuously adjust the height of the lifting end in a vertical direction; and the through pipeline in the simulated rock and soil layer includes an upstream port and a downstream port, the downstream port is provided with a water blocking plug matched with the port in shape, and the upstream port is connected with a water source. The test device is suitable for detecting the drag force of water current to the wall of the through pipeline in the rock and soil layer under heavy rainfall or water drainage conditions, so the test device provides a reference for and makes a contribution to the quantification of the influencesof the pipeline drag force on the instability of the rock and soil body under the heavy rainfall or water drainage conditions.

Description

technical field [0001] The invention relates to a testing technology for influencing factors of slope stability, in particular to a testing device and method for measuring the influence of rock-soil pipeline flow on rock-soil stability. Background technique [0002] The through pipes, non-penetrating pipes and pores in the rock and soil form a complex porous network system. Among them, the through pipeline is the main path for the mutual conversion between groundwater and surface water, an important channel for the hydraulic connection between groundwater and rock-soil mass, and a boundary condition that is often tracked for rock-soil mass instability and failure. Geotechnical pipeline flow has greatly affected the construction safety and normal operation of transportation, water conservancy and hydropower and mining projects, and its research has attracted extensive attention from engineering and academia. [0003] In the field of civil engineering, the linear Darcy's law ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 叶飞符文熹文丽娜魏玉峰夏敏雷孝章袁星宇
Owner SICHUAN UNIV