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A method for monitoring the dynamic change of soil vertical moisture content in coal mining subsidence

A technology of coal mining subsidence and dynamic changes, applied in geophysical measurement, measurement devices, nuclear radiation exploration, etc., can solve problems such as inaccurate measurement, and achieve the effect of accurate vertical soil moisture content

Active Publication Date: 2016-08-24
CHINA SHENHUA ENERGY CO LTD +2
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Problems solved by technology

[0011] Based on this, it is necessary to provide a monitoring method for the dynamic change of soil vertical water content in coal mining subsidence in view of the technical problem of inaccurate measurement of moisture dynamic changes and damage in coal mining subsidence in the existing technology

Method used

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  • A method for monitoring the dynamic change of soil vertical moisture content in coal mining subsidence
  • A method for monitoring the dynamic change of soil vertical moisture content in coal mining subsidence
  • A method for monitoring the dynamic change of soil vertical moisture content in coal mining subsidence

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 Shown is a working flow chart of the monitoring method for the dynamic change of soil vertical water content in a coal mining subsidence ground of the present invention, including:

[0023] Step S101, select the non-subsidence area whose distance along the opposite direction of the mining strike is greater than twice the average coal mining depth (coal mining depth) as the control area, and select the undisturbed area at the front end of the mining line of the coal mining subsidence area as the measurement area; in the measurement area, the uniform subsidence area is predicted as the measurement uniform subsidence area, and the non-uniform subsidence area is predicted as the measurement non-uniform subsidence area;

[0024] Step S102, arranging a plurality of water monitoring points in parallel to the directio...

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Abstract

The invention discloses a method for monitoring the dynamic change of soil vertical water content in a coal mining subsidence area, which includes: selecting a control area, selecting the undisturbed area at the front end of the mining line of the coal mining subsidence area as a measurement area; The measurement area is expected to measure the uniform subsidence area, and the measurement non-uniform subsidence area is expected to be measured; the moisture monitoring points of the measurement uniform subsidence area and the measurement non-uniform subsidence area are the measurement points, and the moisture monitoring points of the control area are As a control point, the moisture observation value of each of the measurement points is obtained multiple times as the measured moisture observation value, and the moisture observation value of each of the control points is obtained as the control moisture observation value; the correction value for excluding the influence of rainfall is calculated. The vertical moisture content of the soil in the coal mining subsidence land measured by the present invention is more accurate, can more comprehensively and scientifically grasp the moisture damage to the soil in the whole process of coal mining subsidence, and provide data information for regional land reclamation and ecological environment restoration.

Description

technical field [0001] The invention relates to the technical field related to coal mines, in particular to a method for monitoring the dynamic change of soil vertical water content in coal mining subsidence land. Background technique [0002] The main mining area in the sandstorm area is located between the loess hills and the Mu Us Desert in my country, and the desertification and potential desertification land area accounts for about 85% of the total area. The thin topsoil particles overlying the sand layer are relatively loose, and human disturbance or inclement weather will cause them to disperse rapidly and cause soil erosion. With the “strategic westward shift” of my country’s coal mining, it will inevitably have a corresponding negative impact on the ecological environment of the region. The main forms of damage are subsidence, surface cracks and soil quality damage caused by surface movement and deformation. [0003] At present, some scholars have conducted researc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/09G01V5/00
Inventor 胡振琪王义郭洋楠林杉王新静李强
Owner CHINA SHENHUA ENERGY CO LTD
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