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

A Gravity Erosion, Field Tested Technology

Inactive Publication Date: 2014-01-01
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 ditch slope as an example, the specific steps of the implementation of the device used to establish the field test of the gravity erosion process of the ditch slope are illustrated. The experiment was carried out in Liudaogou Watershed, Shenmu County, Loess Plateau.

[0045] Step 1: Preliminary tidying up the terrain

[0046] According to the typical landform characteristics of Huangtugou slope, the generalized slope is designed7. The plane projection dimensions of the model along the slope aspect and perpendicular to the slope aspect 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 site of the ditch slope prone to gravity erosion. Step 2: Build a mobile laboratory

[0047] Build and assemble the field test chamber 4 at the scen...

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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 setting up a field test of a ditch slope gravity erosion process. On-site measurement of the gravity erosion of the previous landslide events during the rainfall process, the total gravity erosion of each rainfall, the gravity erosion after the rain, and the slope and aspect of the steep slope at any time. Background technique [0002] Quantitative observation of the process of gravity erosion on gully slopes can provide an in-depth study of its mechanism, and provide a scientific basis for the establishment of gravity erosion prediction models and the determination of disaster prevention and mitigation countermeasures. However, due to the complexity of gravity erosion, the in-situ quantitative observation of gravity erosion has been explored, and no breakthrough has been made yet. The initial research was to indirectly ...

Claims

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Application Information

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IPC IPC(8): G01N33/24
Inventor 徐向舟赵蕊
Owner DALIAN UNIV OF TECH
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