Isotope-labeled method for measuring pressure bearing water quantity of water-intercepted bottom plate

A measurement method and technology of confined water, which are applied in the field of flow measurement, measurement device, fluid velocity measurement, etc. Confined water drainage and other issues, to achieve the effects of good safety and reliability, saving personnel costs, and simple construction methods

Active Publication Date: 2016-04-27
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

[0002] With the continuous increase of coal mine mining depth, the mining conditions and geological conditions are becoming more and more complex. During the mining process of the working face, the problem of pressurized water is often encountered, which brings great difficulties to safe production and is prone to floor outbursts. water accident
[0003] At present, researchers in this field usually solve the above-mentioned problems by means of deep drainage and intensive drainage and mining under pressure. In

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  • Isotope-labeled method for measuring pressure bearing water quantity of water-intercepted bottom plate
  • Isotope-labeled method for measuring pressure bearing water quantity of water-intercepted bottom plate
  • Isotope-labeled method for measuring pressure bearing water quantity of water-intercepted bottom plate

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Embodiment 1

[0064] Taking a working face of a certain coal mine as an example, in the process of controlling the confined water on the floor of the working face, the method of measuring the confined water volume of the floor of the working face of the coal mine after the water is blocked and the source is cut off is given as an example:

[0065] The construction method includes the following steps:

[0066] Step 1. Collect geological data and conduct fine detection of the hydrogeological conditions of the coal mining face.

[0067] Specific detailed detection contents include:

[0068] 1. Investigate whether the geology of this working face meets the requirements of curtain grouting. The survey results show that the main water source of the confined water on the bottom plate of the working face is relatively concentrated;

[0069] 2. Use the confined water tracer experiment to find out the location of the main channel of the confined water on the bottom plate, and measure the flow veloci...

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Abstract

The invention discloses an isotope-labeled method for measuring the pressure bearing water quantity of a water-intercepted bottom plate. The method comprises the steps of firstly, performing fine detection on the hydrogeological condition of a coal working face bottom plate; then arranging a curtain intercepting tunnel in a coal seam during underground construction, arranging a curtain line at the curtain intercepting tunnel, and performing curtain grouting on grouting holes in sequence; cross-heading the working face up and down, drilling a downward inclined bore as a feeding hole in the coal seam at each interval, and drilling an observation hole between the adjacent feeding holes; and finally, calculating the pressure bearing water quantity of the bottom plate and the supply speed of a secondary water source on the pressure bearing water of the bottom plate. The method has an important guiding significance for drainage equipment selection and required cost during artificial drainage after the water source in a mine threatened by the pressure bearing water is intercepted, has the characteristics of high safety, good reliability, simplicity in construction, low cost and the like, and therefore has good technical promotion value.

Description

technical field [0001] The invention relates to a method for measuring the pressure-bearing water volume in underground coal mines, in particular to a method for measuring the pressure-bearing water volume of the floor after water blocking and source cut-off based on isotope labeling. Background technique [0002] With the continuous increase of coal mine mining depth, the mining conditions and geological conditions are becoming more and more complex. During the mining process of the working face, the problem of pressurized water is often encountered, which brings great difficulties to safe production and is prone to floor outbursts. water accident. [0003] At present, researchers in this field usually solve the above-mentioned problems by means of deep drainage and intensive drainage and mining under pressure. In the process of deep drainage and intensive drainage, the water under pressure on the floor is generally discharged after the water is blocked and the source is cu...

Claims

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Application Information

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IPC IPC(8): G01P5/00G01F1/704
CPCG01F1/704G01P5/00G01P5/001
Inventor 刘伟韬王东辉张勤宋文成王建宁范龙
Owner SHANDONG UNIV OF SCI & TECH
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