A demolition blasting test blasting method

A test explosion, consistent technology, applied in the direction of blasting, can solve the problems of poor safety, difficult to achieve ideal results, increased workload, etc., to achieve the effect of small amount of engineering, obvious test explosion situation, easy to observe

Active Publication Date: 2020-09-04
中铁四院集团工程建设有限责任公司
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Problems solved by technology

[0003] The purpose of the present invention is to solve the prior art blasting method mentioned in the above-mentioned background technology, which needs repeated blasting trials to determine the amount of charge for demolition blasting, which has the problems of increased workload, difficulty in achieving ideal results, and poor safety. , providing a demolition blasting test method

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  • A demolition blasting test blasting method

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] A certain place wants to demolish an old factory building by blasting. In the early stage of design work, it is necessary to determine the usage of explosives for demolition construction. Therefore, it is necessary to conduct a test blast to determine the amount of explosives.

[0029] Before the explosion test, it is necessary to select a component in the factory building as the explosion test component. The principle of selection is that the component will not affect the structural stability of the factory building after being broken by blasting. According to the structural characteristics of the factory building, the column 4 in the factory building is selected as the blasting test component.

[0030] Such as figure 1 As shown, the blasting test holes are drilled on the column 4. In this embodiment, three groups of blasting...

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Abstract

The invention relates to the technical field of demolition blasting construction methods, in particular to a demolition blasting trial blasting method. The demolition blasting trial blasting method comprises the following steps of (1) selecting a component in a building to be detonated as a trial blasting component; (2) drilling a plurality of trial blasting holes not interfering with each other in the component and filling different quantities of explosives into the different trial blasting holes; (3) detonating the explosives in all the trial blasting holes, observing the detonated componentand selecting the explosive quantity of the trial blasting hole with the best trial blasting effect as the optimal explosive quantity; and (4) carrying out explosion design work on demolition blasting construction according to the optimal explosive quantity. The trial blasting method is simple and high in efficiency. The trial blasting workload is reduced. The more accurate blasting explosive quantity can be obtained. No burden is caused to the blasting safety management work. The demolition blasting trial blasting method has great promotional value.

Description

technical field [0001] The invention relates to the technical field of demolition blasting construction methods, in particular to a demolition blasting test method. Background technique [0002] Trial blasting is a small-scale experimental blasting of the medium to be blasted before large-scale blasting. In demolition blasting, a few blasting holes on a single component are usually carried out on various typical components to calculate the suitable charge for large-scale blasting. Under normal circumstances, select a component, then drill 3 to 5 holes, put explosives of the same weight in each space, and then detonate them at the same time, and judge the amount of charge for the test blast by observing the final blasting situation Whether to meet the requirements. This test blasting method can only reflect the blasting situation of one charge, so there may be a situation where the test blasting effect is not good. Once the test blasting effect is not good, another test bl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42D3/02F42D1/00
CPCF42D1/00F42D3/02
Inventor 蒙云琪吴剑峰陈仕奇陈占邬强李小贝操鹏张兆龙李中飞
Owner 中铁四院集团工程建设有限责任公司
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