Monitoring method of dynamic change of vertical water content of coal-mining subsidence soil

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: 2014-10-01
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

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  • Monitoring method of dynamic change of vertical water content of coal-mining subsidence soil
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  • Monitoring method of dynamic change of vertical water content of coal-mining subsidence soil

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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] like 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 direction o...

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Abstract

The invention discloses a monitoring method of the dynamic change of the vertical water content of coal-mining subsidence soil. The monitoring method comprises the following steps: selecting a reference area, and selecting an undisturbed area in the front end of an exploitation line of a coal-mining subsidence working surface as a measuring area; predicting a uniform measuring subsidence area and a nonuniform measuring subsidence area in the measuring area; obtaining moisture observed values of each measuring point as measuring moisture observed values and moisture observed values of each reference point as reference moisture observed values for many times by using moisture monitoring points of the uniform measuring subsidence area and the nonuniform measuring subsidence area as measuring points and moisture monitoring points of the reference area as reference points; and calculating to obtain an corrected value without the influence of rainfall. The vertical water content of the coal-mining subsidence soil, which is measured by using the monitoring method, is more accurate, the moisture damage condition of the whole coal-mining subsidence process to the soil can be comprehensively and scientifically held, and data information is provided for regional land reclamation and ecological environment remediation.

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...

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Application Information

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Patent Type & Authority Applications(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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