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Pore sealing and plugging material suitable for laneways and application method thereof

A leak-stopping material and hole-sealing technology, applied in the field of leak-stopping materials, can solve problems such as poor sealing of seepage through fissures in surrounding rocks, affecting the stability of surrounding rocks, and leakage of surrounding rock walls, etc., achieving economical, safe, fast, Good plugging, fast plugging effect

Inactive Publication Date: 2014-06-18
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a hole sealing and plugging material suitable for wells and its application method, so as to solve the problem of grout leakage in the cracks of surrounding rocks in the existing grouting process, and the problem of water seepage through cracks in the surrounding rocks. At the same time, the cracks on the surrounding rock wall of the roadway continue to seep water, resulting in continuous air leakage behind the surrounding rock wall, which seriously affects the stability of the surrounding rock.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: When the above-mentioned hole sealing and leakage plugging material is applied to the hole sealing of the grouting pipe in the shaft:

[0023] For material configuration, 425# ordinary Portland cement and 35Be water glass are used; 1 part of water, 2.1-2.3 parts of cement, and 0.022-0.03 parts of water glass.

[0024] The outer diameter of the grouting pipe is 36mm, the inner diameter is 32mm, the diameter of the grouting hole is 42mm, the length of the grouting pipe is 2.8 meters, and the depth of the grouting hole is 3 meters.

[0025] First mix water and water glass evenly, then put the water glass and water mixture into the cement, and stir quickly; within 1 to 2 minutes, put the prepared slurry evenly on the last 5cm of the grouting pipe to be sealed. For the left and right sections, the smear thickness is slightly smaller than the difference between the radius of the grouting hole and the outer radius of the grouting pipe. Then insert the grouting p...

Embodiment 2

[0026] Embodiment 2: When the above-mentioned hole sealing and plugging material is applied to the plugging of water seepage and gushing water in the surrounding rock in the tunnel leading to the water-containing fissure zone:

[0027] For material configuration, 425# ordinary Portland cement and 40Be water glass are used; 1 part of water, 2.3-2.5 parts of cement, and 0.01-0.018 parts of water glass.

[0028] In the roadway with shotcrete layer, water gushes from cracks in the surrounding rock within 2 meters axially and 1.6 to 2.3 meters away from the bottom plate. The cracks in the surrounding rock are cracked by 3 to 7 mm, and the water flow is not large.

[0029] First mix water and water glass evenly, then mix with cement, stir quickly and evenly, within 1 to 3 minutes, quickly and sequentially insert the prepared materials into the water gushing cracks and plug them tightly, which can realize convenient and fast plugging.

Embodiment 3

[0030] Example 3: When the above-mentioned hole-sealing and leak-stopping material is used to seal the grout leakage from the cracks on the surrounding rock wall of the shaft during the grouting process:

[0031] For material configuration, 425# ordinary Portland cement and 40Be water glass are used; 1 part of water, 2.8-3.0 parts of cement, and 0.0025-0.005 parts of water glass. Using method is identical with embodiment 2.

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Abstract

A hole sealing and plugging material suitable for laneways and an application method thereof belong to plugging materials for laneway engineering and application methods thereof. The hole sealing and plugging material comprises the following components by weight percent: 1.0 parts of water, 2.1 to 3.0 parts of cement and 0.0025 to 0.03 part of sodium silicate; The application method comprises the steps of preparing water, silicate cement, 35-45Be water glass in proportion; firstly mixing water with water glass, and then mixing with cement, and stirring quickly. The hole sealing and plugging material is wide in source of raw materials, is economical and safe and is convenient to use; since the time of coagulation, viscidity / plasticity state and final strength of the prepared plugging material can be adjusted freely in the ratio range, the material is well-adapted. The sealing length is short, sealing speed is high, sealing effect is good when the material is used for sealing a grouting hole, so that the plugging material can be adapted to grouting holes with various sizes and grouting pipes with various sizes; and the prepared plugging material is put into fractures of surrounding rocks compactly to achieve a quick and good plugging effect when the plugging material is used for sealing water burst at fractures of surrounding rocks and slurry leakage in a grouting process.

Description

technical field [0001] The invention relates to a plugging material for shaft engineering and a use method thereof, in particular to a plugging material suitable for shafts and a usage method thereof. Background technique [0002] In roadway engineering, especially in mining, grouting can effectively fill cracks, solidify cracks, consolidate broken surrounding rocks, and improve the bearing capacity of roadway surrounding rocks. Therefore, it is very common to use grouting to maintain the stability of roadways in coal mines. . The use of economical, safe, convenient and quick materials for grouting pipe sealing can effectively improve the efficiency and benefits of grouting, and timely, effective and economical sealing of cracks and leakage on the surface of surrounding rock during the grouting process is of great help to improving grouting. The pulp effect is more important. At the same time, the penetration of the surrounding rock through the water-conducting fissure zon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C09K8/467E21B33/13E21D11/10E21D11/38
Inventor 张益东陈冬冬
Owner CHINA UNIV OF MINING & TECH
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