Construction method adopting underwater groove for controlling blasting in deepwater river

A technology for controlling blasting and construction methods, applied in blasting and other directions, can solve problems such as long construction period and large amount of engineering, and achieve the effects of reducing hazards, large number of personnel, and high construction efficiency

Inactive Publication Date: 2020-03-17
中铁五局集团第二工程有限责任公司
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  • Abstract
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Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the present invention provides a construction method for controlled blasting of underwater trenches in deep-water rivers. By adopting controlled blasting of underwater trenches, it solves the problem of shallow hole blasting and hydraulic breaker due to the creation of dry land by filling islands. The problem of long construction period and huge engineering volume

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  • Construction method adopting underwater groove for controlling blasting in deepwater river
  • Construction method adopting underwater groove for controlling blasting in deepwater river
  • Construction method adopting underwater groove for controlling blasting in deepwater river

Examples

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Embodiment Construction

[0059] This example takes the No. 124 water plant relocation and water supply guarantee project in the central city of Yibin as an example to illustrate the underwater trench excavation project of the water intake head of the Pu'an Water Plant and the underwater placement of the water diversion pipe, which belongs to the Jinsha River Basin It is carried out in the navigation area in the center of the river, the first-class water source, and the Chinese sturgeon protection area. The characteristic is that the river is turbulent and there are many eddies. The embodiment of the present invention realizes the trench excavation construction in the undulating riverbed of the deep-water river, accelerates the realization of the construction period target during the construction process, and also reduces the safety risk of water and underwater operations in the deep-water rapids riverbed in mountainous areas. It is well received by the owner, design and supervision units.

[0060] The...

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Abstract

The invention relates to the field of water taking facilities in a construction period of a tap water plant or a water pump room, in particular to a construction method adopting an underwater groove for controlling blasting in a deepwater river. According to the construction method, the underwater groove is used to control blasting, the problems of long construction period and huge work amount ofshallow hole blasting and hydraulic breaking hammer construction due to filling of the island for building of the fastland are solved, row-to-row shot-delay blasting is adopted for blasting, the single section of blasting charge is controlled, the harm of the blasting vibration to important buildings is reduced, the blasting efficiency is improved, the protection of a downstream temporary water taking facility is achieved, and safety benefits and economic benefits are achieved.

Description

technical field [0001] The invention relates to the field of water intake facilities during the construction period of a waterworks or a water pump house, in particular to a construction method for controlled blasting of an underwater trench in a deep-water river. Background technique [0002] With the continuous growth of the domestic urban population, municipal public works have been vigorously developed like never before, and more and more waterworks are newly built, rebuilt and expanded. To the success or failure of the construction of waterworks. [0003] However, in order to obtain high-quality tap water and a steady stream of water resources, it is necessary to solve the problem of large-scale and large-volume trench excavation underwater. The conventional method is shallow hole blasting and hydraulic breaker excavation, which is aimed at trenches in deep water rivers. When excavating, it is very inefficient to practice this type of method. Therefore, how to take pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D3/04F42D1/00
CPCF42D3/04F42D1/00
Inventor 陈慧宋作栋梁文蒋武华李新李佳丽刘银华曾斌伍志光
Owner 中铁五局集团第二工程有限责任公司
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