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Thermal expansion stone splitting agent equal proportion structure large-area stone splitting method

A rock-cracking agent and thermal expansion technology, which is applied in the interdisciplinary field of material science and engineering technology, can solve the problems of rock-cracking agent waste, etc., and achieve the effects of fast rock-cracking, lower economic costs, and easy operation

Active Publication Date: 2015-11-04
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of blindly drilling and charging the rock cracking agent during the use of the rock cracking agent, which causes huge waste of the rock cracking agent, and provides a large-area rock cracking method with a thermal expansion rock cracking agent with an equal proportion structure.

Method used

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  • Thermal expansion stone splitting agent equal proportion structure large-area stone splitting method
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  • Thermal expansion stone splitting agent equal proportion structure large-area stone splitting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In a quarry, choose the side length R 0 Cube limestone with dimensions 1.2m, according to the formula Drilling depth h at the center of the rock 0 A hole of 1.05m was drilled, and a stone hole with a radius of 10mm was drilled, and the thermal expansion rock cracking agent was filled for a rock cracking test. The rock could not be cracked, and the drilling radius was increased in turn until the rock could be completely cracked and the distance between the cracked stones reached 15cm. The measured The optimum drilling radius is 20mm. In this quarry, according to the construction requirements, the same type of limestone needs to be cracked. Its shape is close to a cuboid, and its size is about 3m×4m×5m. According to the requirements of the construction personnel on site, the drilling plane S is 4m×5m. According to the rock cracking requirements, the rock cracking technicians evenly distribute the drilling positions on the drilling plane S according to the drilling dist...

Embodiment 2

[0024] In a quarry, choose the side length R 0 Cube limestone with dimensions 1.2m, according to the formula Drilling depth h at the center of the rock 0 A hole of 1.05m was drilled, and a stone hole with a radius of 10mm was drilled, and the thermal expansion rock cracking agent was filled for a rock cracking test. The rock could not be cracked, and the drilling radius was increased in turn until the rock could be completely cracked and the distance between the cracked stones reached 15cm. The measured The optimum drilling radius is 20mm. In this quarry, according to the construction requirements, the same type of limestone needs to be cracked. The construction area is close to a rectangle, with a size of about 2m×4m. According to the requirements of the construction personnel on site, the 4m×2m plane is used as the drilling plane S. Rock cracking technology According to the rock-cracking requirements, the personnel evenly distributed 12 drilling positions on the drilling ...

Embodiment 3

[0026] In a quarry, choose the side length R 0 Cubic limestone of size 0.8m, according to the formula Drilling depth h at the center of the rock 0 A hole of 0.68m was drilled, and a stone hole with a radius of 8mm was drilled, and the thermal expansion rock cracking agent was filled for a rock cracking test. The rock could not be cracked, and the drilling radius was increased in turn until the rock could be completely cracked and the distance between the cracked stones reached 25cm. The measured The optimum drilling radius is 14mm. In this quarry, according to the construction requirements, it is necessary to crack the same type of limestone. Its shape is close to a cuboid, and its size is about 6m×8m×5m. According to the requirements of the construction personnel on site, the 6m×8m plane is used as the drilling plane S. According to the rock cracking requirements, the rock cracking technicians evenly distribute the drilling positions on the drilling plane S according to th...

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Abstract

The present invention relates to a thermal expansion stone splitting agent equal proportion structure large-area stone splitting method, and belongs to the field of intersection of material science and engineering technology. The method comprises: 1, selecting a cube stone block, drilling at the center position of the stone block, filling a stone splitting agent, carrying out a stone splitting test, and screening the optimal drilling radius; 2, in the case of assurance of the same standard stone splitting, determining the drilling plane S of the stone block to be split, and determining the drilling interval d according to the drilling center distribution required by the construction; 3, measuring the thickness h1 of the rock at the drilling center position and perpendicular to the drilling plane, and calculating the drilling depth h and the drilling radius r according to the formulas defined in the specification; and 4, according to the h and r obtained in the step 3, drilling, filling a thermal expansion stone splitting agent into the drilled hole, and carrying out stone splitting. According to the present invention, the calculation method is scientific, the use process is safe and stable, the normal use construction process of the thermal expansion stone splitting agent product is not affected, the equal proportion structure large-area stone splitting can be achieved by using the method, the stone splitting agent consumption is substantially saved, the economic cost is reduced, and the economic benefit is improved.

Description

technical field [0001] The invention relates to a large-area rock-cracking method with an equal-proportion structure of a thermal expansion rock-cracking agent, which belongs to the interdisciplinary field of material science and engineering technology. Background technique [0002] Industrial explosives have always occupied a dominant position in mining in the past, but due to the common disadvantages of high labor intensity, low work efficiency, waste of resources, poor safety and environmental pollution, except for some projects that still need industrial explosives, industrial explosives are gradually replaced by rock cracking agents. substitute. Rock cracking agents are widely used in stone cutting, rock crushing, trench caisson excavation, concrete foundation, etc. Demolition and other engineering constructions are playing an increasingly important role in national economic construction. [0003] As a new type of rock cracking agent, thermal expansion rock cracker re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C37/06E21C37/16E04G23/08E01D24/00
Inventor 刘吉平刘晓波韩钊武毕晓露苏岩
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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