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Underground large-scale cave depot group network gallery type construction and ventilation method

A ventilation method and roadway-type technology, which is applied to the ventilation of mines/tunnels, earthwork drilling, mining equipment, etc., and can solve the problems of poor ventilation in caverns and high cost of ventilation projects

Inactive Publication Date: 2016-11-09
SOUTHWEST JIAOTONG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a tunnel-type construction ventilation method for underground large-scale cavern group network to solve the problems of poor internal communication effect of caverns and high cost of ventilation engineering

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  • Underground large-scale cave depot group network gallery type construction and ventilation method
  • Underground large-scale cave depot group network gallery type construction and ventilation method
  • Underground large-scale cave depot group network gallery type construction and ventilation method

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Embodiment Construction

[0054] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0055] A roadway-type construction ventilation method for a network of underground large-scale caverns, comprising:

[0056] 1. Establish a ventilation model in which the existing shaft 2 in the tunnel section is used as the fresh air inlet, and the construction passage opening 7 is used as the dirty air outlet.

[0057] 2. When the ventilation distance of the tunnel section is greater than 2km, such as image 3 and Figu...

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Abstract

The invention discloses an underground large-scale cave depot group network gallery type construction and ventilation method, comprising the following steps: establishing a ventilation model taking an existing vertical shaft as a fresh air inlet and taking a construction channel hole as a vitiated air exhausting hole; selecting types of draught fans needed by different cave sections according to ventilation distances of the cave sections, total required airflow of the cave sections, total ventilation resistance in the cave sections and motor power of axial flow draught fans; finally, blocking all the transverse construction channel holes, except the vitiated air exhausting holes, of the cave sections, so as to prevent air flow from short circuit. According to the method disclosed by the invention, a most suitable draught fan quantity and draught fan type are provided for the cave sections with the different ventilation distances and the existing vertical shaft is used as the fresh air inlet, so that the ventilation effect of cave depots can be improved, the consumption of energy sources is also reduced and the construction investment cost is reduced.

Description

technical field [0001] The invention relates to a roadway-type construction ventilation method of a network of underground large-scale caverns. Background technique [0002] The ventilation problem during the construction of large-scale underground caverns or cavern groups (underground workshops, underground storage warehouses, etc.) is a very complicated problem, which has a great impact on construction costs, progress, environment, occupational health and other aspects. However, domestic research on this issue is still in the exploratory stage, there is no systematic method, and there are still many problems in actual construction. Domestic projects still basically use press-in ventilation, and design special ventilation shafts based on experience to adopt mechanical exhaust or natural ventilation (using the chimney effect) to discharge sewage. However, this method has obvious defects and limitations, mainly in the following points: [0003] (1) The construction of large...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F1/00
CPCE21F1/00
Inventor 张恒吴瑾涂鹏林放王路孙建春张超刘效成陈寿根张凯
Owner SOUTHWEST JIAOTONG UNIV
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