Adjacent continuous tunnel group ventilation experiment device and manufacture method

A test device and tunnel group technology, which is applied in mine/tunnel ventilation, earthwork drilling, mining equipment, etc., can solve problems such as difficulty in evaluating the impact of ventilation and sewage, and achieve shortened production cycles, reduced test costs, and thermal stability. high sex effect

Active Publication Date: 2020-07-28
CHINA JILIANG UNIV +1
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a ventilation test device for a group of close continuous tunnels and a manufacturing method thereof, in order to solve the problem that the existing ventilation test platform is difficult to eva

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
  • Adjacent continuous tunnel group ventilation experiment device and manufacture method
  • Adjacent continuous tunnel group ventilation experiment device and manufacture method
  • Adjacent continuous tunnel group ventilation experiment device and manufacture method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] According to the principle of similarity and the results of a large number of tunnel ventilation tests, in order to ensure that the test has a clear physical meaning, the test device must not only be geometrically similar to the actual tunnel, but also satisfy dynamic similarity, that is, similar flow resistance. To achieve similar flow resistance between the test device and the actual tunnel, the air resistance coefficients of the two must be equal, and the air flow of the two enters the self-modeling area. When considering the influence of the temperature difference between the tunnel body and the environment, the Froude coefficient that affects the thermal buoyancy effect needs to be included in the calculation range. The jet diffusion close to the openings of the tunnel group belongs to the three-dimensional wall jet. A lar...

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

PropertyMeasurementUnit
Apertureaaaaaaaaaa
Side lengthaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses an adjacent continuous tunnel group ventilation experiment device and a manufacture method. The experiment device comprises a left line upstream main tunnel, a left line downstream main tunnel, a right line upper stream main tunnel and a right line downstream main tunnel, wherein the four sections of main tunnels are bidirectional two-hole adjacent continuous tunnels whichare divided into left lines and right lines, and the middle parts of the four main tunnels are adjacent opening sections. According to the experiment device, four sections of main tunnels are combined, a longitudinal distance between each upstream tunnel and each downstream tunnel as well as a lateral distance between each left line tunnel and each right line tunnel can be regulated at will, so that an influence on tunnel group ventilation and pollution discharge by an adjacent tunnel interval, a tunnel group lateral distance, a tunnel temperature as well as a traffic flow and a speed in the tunnel is evaluated in the same tunnel ventilation experiment device, so that the manufacture cost of a model is saved, a manufacture period is shortened, in addition, an evaluation error is greatly lowered, and the accuracy of an evaluation result is guaranteed.

Description

technical field [0001] The invention relates to a tunnel ventilation test device, in particular to a close-to-continuous tunnel group ventilation test device and a manufacturing method. Background technique [0002] With the continuous expansion of the urbanization process, the scale of cities and towns has also increased, and the number of traffic buildings has continued to increase. Urban traffic is the "culprit" of air pollution. The backward transportation facilities and large population concentration make traffic congestion a prominent problem in many large cities at home and abroad. In order to alleviate the overload of urban traffic, tunnels have become an important measure to alleviate traffic congestion and the shortage of urban land resources. Because tunnels are mostly built in areas with heavy traffic and high density of people, they often face severe environmental constraints. Understanding their ventilation characteristics and pollutant diffusion characteristi...

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
IPC IPC(8): E21F1/02
CPCE21F1/02
Inventor 朱凯张琼华章俊屾杜自豪王强吴珂吴琳琳
Owner CHINA JILIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap