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Dust reduction structure for excavation of narrow river valley

A river valley and dust reduction technology, which is applied in the direction of instruments, data processing applications, road cleaning, etc., can solve problems such as unsatisfactory effects

Pending Publication Date: 2018-06-01
POWERCHINA HUADONG ENG COPORATION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For modern engineering construction, various technical measures have been taken in order to meet the national and local government’s environmental protection and dust emission concentration requirements in project bidding documents, but the effect is not satisfactory

Method used

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  • Dust reduction structure for excavation of narrow river valley
  • Dust reduction structure for excavation of narrow river valley
  • Dust reduction structure for excavation of narrow river valley

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Refer to attached picture. A narrow river valley excavation and dust suppression structure of the present invention comprises a high-level pool 1, a water diversion PVC pipe 2 and a plurality of rainwater spraying PVC pipes 3.

[0030] a. High pool 1: such as Figure 1 ~ Figure 2 As shown, the purpose of setting the elevated pool 1 is to provide a water body with a high head for dust reduction. The size of the elevated pool 1 is determined comprehensively according to the area required for dust reduction in the project. The structure of the elevated pool 1 should meet the stress stability requirements under various working conditions. The position of the elevated pool 1 is critical, and the height difference H between it and the rainwater spray PVC pipe 3 0 Determined by the following trial calculation:

[0031]

[0032]

[0033] Among them, Q is the inlet flow rate of the rainfall sprinkler PVC pipe 3, K is the flow modulus, L 0 Is the total length of the rain...

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Abstract

The invention provides a dust reduction structure for excavation of a narrow river valley. The structure includes a high-altitude water pool, water introducing pipes and multiple rainfall-type water spraying PVC pipes; the rainfall-type water spraying PVC pipes stretch across the two sides of the river valley aloft and are arranged along downward sliding routes of overturned slag. The rainfall-type dust reduction structure for excavation of the narrow river valley aims at solving the problem that it is difficult to carry out excavation and dust reduction on high slopes, simple and few pipelines are adopted for comprehensively covering excavation surfaces and the downward sliding routes of the overturned slag, and the structure is simple, convenient to implement and great in effect. By carrying out artificial rainfall on the excavation surfaces of the slopes and the downward sliding routes of the overturned slag, the purpose of reducing dust is achieved.

Description

technical field [0001] The invention relates to a narrow river valley excavation dust suppression structure, which is mainly suitable for excavation of narrow valley dam abutment slopes and similar projects for hydropower station construction. Background technique [0002] In order to protect and improve the environment, prevent and control air pollution, protect public health, promote the construction of ecological civilization, and promote sustainable economic and social development, my country has successively promulgated the "Environmental Protection Law of the People's Republic of China" (2014), "Law of the People's Republic of China on the Prevention and Control of Air Pollution" "(2015), provinces and cities have also formulated relevant laws and regulations according to their own actual conditions, and the intensity of environmental protection is unprecedented. [0003] For the excavation of high slopes, due to the construction principle from top to bottom, most of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01H3/04G06Q50/06
CPCG06Q50/06E01H3/04
Inventor 王登银徐建军蒋胜祥何展国
Owner POWERCHINA HUADONG ENG COPORATION LTD
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