Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ventilation method for construction of super-long tunnel

A ventilation method and tunnel technology, which is applied in mine/tunnel ventilation, earthwork drilling, mining equipment, etc. It can solve the problems that cannot meet the basic ventilation requirements of long-distance tunnel construction, improve the construction operation environment, and optimize the section size , the effect of reducing air leakage

Inactive Publication Date: 2019-08-16
YELLOW RIVER ENG CONSULTING
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the air supply method of the fan cannot meet the basic ventilation demand of long-distance tunnel construction

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ventilation method for construction of super-long tunnel
  • Ventilation method for construction of super-long tunnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the scope of protection of the present invention is not limited to the following Described embodiment.

[0026] Such as figure 1 Shown, the ventilating method that the present invention is used for ultra-long tunnel construction comprises the following steps:

[0027] Step 1, use the air compressor 1 to pressurize the outdoor fresh air, and the air compression ratio is determined according to the resistance loss along the long-distance construction tunnel; choose three air compressors and arrange them in parallel;

[0028] Step 2, the compressed air after pressurization and filtration of each air compressor 1 is sent to the two pressure stabilizing tanks 2 arranged i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a ventilation method for construction of a super-long tunnel. The ventilation method comprises the steps that 1, outdoor fresh air is pressurized by an air compressor; 2, compressed air pressurized by the air compressor and filtered is delivered into a pressure stabilizing tank through a pipeline; 3, the compressed air in the pressure stabilizing tank is delivered to a colddryer for cooling and dehumidification drying treatment; 4, a high-pressure air supply pipeline is laid in the tunnel; 5, an air inlet of the high-pressure air supply pipeline communicates with an air outlet of the pressure stabilizing tank, and an air outlet of the high-pressure air supply pipeline communicates with a diverging pipe; and 6, an air outlet of the diverging pipe reaches the position of a tunnel heading machine through a telescopic hose and is fixed, and an adjustable air supply opening is formed in the tail end of the telescopic hose and placed in the position of a tunnel construction tunnel face. According to the ventilation method, the air is pressurized by the air compressor, excavation of a ventilation vertical shaft at the middle section of the tunnel is omitted, the construction difficulty is lowered greatly, and the engineering construction cycle and the construction cost are saved.

Description

technical field [0001] The invention relates to the field of construction ventilation of a TBM (abbreviation for Tunnel Boring Machine in English, tunnel boring machine), in particular to a ventilation method for ultra-long tunnel construction. Background technique [0002] Long-distance tunnel excavation construction will be involved in long-distance mountain-crossing tunnel highway and railway projects, mountain-crossing water diversion projects, and urban subway traffic projects. Tunnel excavation construction face has the characteristics of closed construction space, hot and humid air, loud construction machinery noise and release of harmful gas and dust, which deteriorates the construction face environment and endangers the normal work of personnel and equipment. [0003] Ventilation is the main technical means to control the tunnel operating environment, ensure the safety and health of personnel, and prevent occupational diseases. The larger the single-head tunnel exc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E21F1/00E21F3/00
CPCE21F1/006E21F3/00
Inventor 张金良毛艳民王文先王龙阁朱莉杨尚宇
Owner YELLOW RIVER ENG CONSULTING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com