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A Physical Tracing Method for Measuring Displacement Flux in Shale Tillage

A displacement flux, mud shale technology, applied in the field of parent rock tillage and erosion, can solve the problems of medium without mixed tracer, no report on erosion measurement, unsuitable for rock debris measurement, etc.

Inactive Publication Date: 2020-03-31
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Existing methods are aimed at the determination of pure soil tillage erosion. For exposed rocks, the biggest defect is that there is no medium (soil itself in the case of measuring soil) that can mix the tracer, and the tracer cannot be mixed with the exposed parent before tillage. The tracer method for measuring soil is not suitable for the determination of rock debris, and there is no report on the determination of the erosion amount of parent rock debris.

Method used

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  • A Physical Tracing Method for Measuring Displacement Flux in Shale Tillage

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Embodiment Construction

[0020] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 Shown, the present invention comprises the following steps:

[0022] The tracer method for the measurement of mud and shale tillage erosion in the top area of ​​the purple soil slope is characterized by: using a physical tracer method, placing the tracer vertically, and calculating the top area of ​​the purple soil slope by the position change of the tracer in three-dimensional space Tillage produces the displacement of the parent rock debris, so as to calculate the tillage erosion rate of the parent rock, as follows:

[0023] a). The width of tracer marking line is planned to be 1m, which is perpendicular to the direction of cultivation; drill iron into both sides of the marking line to mark the starting position, and mark the surface position of the original parent rock on the iron drill; use a portable percussion dr...

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Abstract

The invention provides a method for accurately measuring the erosion rate of mud shale in the top area of ​​the purple soil slope, and the purpose of the invention is achieved through the following technical solutions: the physical tracer method for the measurement of the area of ​​cultivation erosion in the top area of ​​the purple soil slope uses dyeing The numbered gravel blocks are used as a physical tracer, and the tracer is placed vertically in combination with the drill hole, and the tillage displacement is accurately determined according to the three-dimensional space changes of its position before and after tillage in the direction of the slope, the direction of the cross slope, and the direction of the vertical slope, so as to accurately measure Tillage erosion rates of purple soil matrix clasts.

Description

technical field [0001] The invention relates to a tracer method for measuring tillage erosion of parent rock in the top area of ​​a purple soil slope, in particular for measuring tillage erosion of parent rock when the depth of the plow layer is greater than the depth of the soil layer. Background technique [0002] As a mature method of measuring tillage erosion, marker-tracing technique is widely used in the measurement of tillage erosion rate due to its advantages of high measurement accuracy, convenience, simple equipment, and small workload. The soil erosion at the top of the purple soil slope farmland is serious. With the increase of the cultivation years, the soil at the top of the slope decreases, the soil layer becomes thinner and even the parent rock is exposed. In order to maintain a certain thickness of the soil layer to maintain the basic soil productivity, the cultivation process It is very common for medium mud and shale to be broken. On the one hand, tillage ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 张建辉魏宇航许海超
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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