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Device and method for building trench slope gravity erosion process field test

A technology of gravity erosion and field test, used in soil material testing, material inspection products, etc., can solve problems such as differences, and achieve the effect of low operating cost, easy transportation, and light transportation.

Inactive Publication Date: 2015-07-15
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ambient light and site conditions of the field test are quite different from those of the indoor test.

Method used

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  • Device and method for building trench slope gravity erosion process field test
  • Device and method for building trench slope gravity erosion process field test
  • Device and method for building trench slope gravity erosion process field test

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Taking the field test of the gravity erosion process of the loess gully slope as an example, the specific steps of the device implementation for establishing the field test of the gully slope gravity erosion process are explained. The experiment was carried out in the Liudaogou watershed of Shenmu County on the Loess Plateau.

[0045] Step 1: Preliminary arrangement of the terrain

[0046] The generalized slope surface is designed according to the typical landform features of Huangtugou slope. The projected dimensions of the model along the slope and perpendicular to the slope are 300cm and 400cm, respectively. The entire slope is composed of a gentle slope of 3° and a steep slope of 60°~80°, and the height of the steep slope is 1.5m. The generalized slope surface is preliminarily sorted out on the gully slope that is prone to gravity erosion. Step 2: Build a mobile laboratory

[0047] Build and assemble the field laboratory 4 on site. The test chamber is 8m long and 5m w...

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Abstract

The invention discloses a device and method for building a trench slope gravity erosion process field test. The device comprises an outdoor test room, trench slope geography, a rainfall simulation device and a gravity erosion observation device. The outdoor test room comprises an outdoor test room body capable of being assembled and a movable rainproof observation room body placed inside the outdoor test room body. The trench slope geography is a generalization slope cut in a field according to typical geomorphic features of a studied area. The generalization slope is separated from the surrounding through steel sheet pile side walls. The rainfall simulation device comprises components including a three-barrel pressure-stabilizing water feeder, a movable assembling multi-micro-spraying-nozzle combined type rainfall device, a water collecting groove and the like. The gravity erosion observation device comprises a geography instrument main machine, a movable assembling slumping face observation support and a sight line calibrator. According to the device and method for building the trench slope gravity erosion process field test, a good observation environment is created for observation of a geography instrument through the test room, the main building components are all assembling movable facilities, the simulation and observation devices can not be disturbed, and observation accuracy is guaranteed.

Description

Technical field [0001] The invention belongs to the technical field of water and soil conservation research devices, and relates to a device and method for establishing a field test of a ditch slope gravitational erosion process. It is a set of test systems for simulating and observing rainfall during a field ditch slope avalanche. The device can Measure the gravitational erosion of the gully slope during the rainfall process, the total gravitational erosion of each rainfall, the gravitational erosion after the rain, and the slope and aspect of the steep slope at any time. Background technique [0002] Quantitative observation of the gravitational erosion process of gully slopes can provide in-depth research on its occurrence mechanism and provide a scientific basis for the establishment of gravitational erosion prediction models and the determination of disaster prevention and mitigation countermeasures. However, due to the complexity of gravity erosion, on-site quantitative obs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24
Inventor 徐向舟赵蕊
Owner DALIAN UNIV OF TECH
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