Curing technology of frozen shaft concrete inner layer shaft wall with liquid foam

A technology for concrete and frozen wells, which is applied in wellbore lining, shaft equipment, earthwork drilling and mining, etc. It can solve the problems of continuous supply of warm water, large consumption of spraying water, and difficulty in water temperature control, so as to reduce maintenance water and improve the quality of wellbore , good thermal insulation effect

Active Publication Date: 2017-05-24
内蒙古伊泰广联煤化有限责任公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the surface of the inner wall of the shaft cannot be covered and maintained, and water spraying is often used to maintain the shaft wall. Although many mines have adopted warm water for the maintenance of the inner wall, due to the large amount of spray water consumption, there is a continuous supply of warm water. It must be difficult, and the water temperature control is quite difficult
As a result, it often occurs that cold water is used instead of warm water to directly flush the concrete well wall, so that a large temperature difference is artificially formed between the inner area and the surface of the inner wall concrete, resulting in many small temperature cracks on the inner wall surface, which affects the quality of the well wall

Method used

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  • Curing technology of frozen shaft concrete inner layer shaft wall with liquid foam
  • Curing technology of frozen shaft concrete inner layer shaft wall with liquid foam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] First, prepare a high-fold protein foam stock solution according to the following formula:

[0040] Water, its weight is 54% of high multiple protein foam stock solution weight;

[0041] Animal protein foaming agent, its weight is 44% of the weight of high multiple protein foam stock solution;

[0042] Sodium dodecylbenzene sulfonate, its weight is 1.5% of the weight of high multiple protein foam stock solution;

[0043] Gelatin, its weight is 0.5% of the weight of high multiple protein foam stock solution.

[0044] Wherein, the animal protein foaming agent is a foaming agent produced by hydrolyzing hooves, horns or / and hair of cattle or sheep.

[0045] Then the prepared high-expansion protein foam stock solution is stored in a foam stock solution storage tank for subsequent use.

[0046]In order to save cost and foam stock solution, and at the same time, in order not to affect the construction of other well sections in the frozen shaft, in this embodiment, a foam cu...

Embodiment 2

[0052] Prepare high-fold protein foam stock solution according to the following formula:

[0053] Water, its weight is 50% of the weight of the stock solution of high multiple protein foam;

[0054] Animal protein foaming agent, its weight is 45% of the weight of high multiple protein foam stock solution;

[0055] Sodium dodecylbenzene sulfonate, its weight is 3.5% of the weight of high multiple protein foam stock solution;

[0056] Gelatin, its weight is 1.5% of the weight of high multiple protein foam stock solution.

[0057] Wherein, the animal protein foaming agent is a foaming agent produced by hydrolyzing hooves, horns or / and hair of cattle or sheep.

[0058] In this example, except that the component content of the high-expansion protein foam stock solution is different from the component content of the high-expansion protein foam stock solution in Example 1, other steps and conditions are the same.

[0059] The use of the high-fold protein foam stock solution in thi...

Embodiment 3

[0061] Prepare high-fold protein foam stock solution according to the following formula:

[0062] Water, its weight is 53% of high multiple protein foam stock solution weight;

[0063] Animal protein foaming agent, its weight is 45% of the weight of high multiple protein foam stock solution;

[0064] Sodium dodecylbenzene sulfonate, its weight is 1.0% of the weight of high multiple protein foam stock solution;

[0065] Gelatin, its weight is 1.0% of the stock solution weight of high multiple protein foam.

[0066] Wherein, the animal protein foaming agent is a foaming agent produced by hydrolyzing hooves, horns or / and hair of cattle or sheep.

[0067] In this example, except that the component content of the high-expansion protein foam stock solution is different from the component content of the high-expansion protein foam stock solution in Example 1, other steps and conditions are the same.

[0068] The use of the high-fold protein foam stock solution in this embodiment c...

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Abstract

The invention discloses a maintenance technology for liquid foam in a concrete inner-layer well wall of a freezing shaft. The maintenance technology for liquid foam in the concrete inner-layer well wall of the freezing shaft comprises the following steps that 1 foam original solution is prepared; 2 an inner wall template on the concrete inner-layer well wall of the freezing shaft is dismantled; 3 the foam original solution prepared in the step 1 is made into foam solution; 4 the foam solution prepared in the step 3 is made into foam, and a foam maintenance device is used for covering the concrete inner-layer well wall of the freezing shaft. According to the maintenance technology for the liquid foam in the concrete inner-layer well wall of the freezing shaft, the maintenance condition of the inner wall concrete is improved to a great extent, the generation of temperature crack in the concrete inner-layer well wall of the freezing shaft can be reduced or controlled effectively, the quality of the freezing shaft is improved, water for the maintenance of the concrete inner-layer well wall of the freezing shaft can also be saved, and the maintenance energy consumption of the concrete inner-layer well wall of the freezing shaft is reduced.

Description

technical field [0001] The invention relates to the technical field of mine underground engineering construction, in particular to a liquid foam maintenance process for the inner layer of a frozen shaft concrete inner shaft wall. Background technique [0002] The inner wall of the frozen wellbore is relatively thick, especially the inner wall of the lower part of the large-diameter vertical shaft, which has a high strength level and a large thickness. It is a large-volume concrete structure. Therefore, after the concrete on the inner wall is poured, there will be a large amount of hydration heat in a short time freed. At present, the surface of the inner wall of the shaft cannot be covered and maintained, and water spraying is often used to maintain the shaft wall. Although many mines have adopted warm water for the maintenance of the inner wall, due to the large amount of spray water consumption, there is a continuous supply of warm water. It must be difficult, and the wat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D5/04
Inventor 张振金谭杰贾怀晓宁方波解志勇刘志强李文艺高岗荣李振民左永江武亚峰王桦
Owner 内蒙古伊泰广联煤化有限责任公司
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