Supercharge Your Innovation With Domain-Expert AI Agents!

A watertightness inspection method of "two waterproofing" elastic gaskets for shield tunnels

A technology of elastic sealing gasket and shield tunnel, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, etc., to achieve the effect of objective and reasonable evaluation index, simple equipment, and small molding workload

Active Publication Date: 2016-09-14
NANJING HYDRAULIC RES INST
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing test devices or methods can only effectively simulate the water permeability of shield tunnel segments under one waterproofing condition.

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
  • A watertightness inspection method of "two waterproofing" elastic gaskets for shield tunnels
  • A watertightness inspection method of "two waterproofing" elastic gaskets for shield tunnels
  • A watertightness inspection method of "two waterproofing" elastic gaskets for shield tunnels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Hereinafter, the present invention will be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the present invention are marked. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0024] For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature relative to another element or feature shown in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, e...

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 shield tunnel elastic sealing gasket "dual-waterproof" water-tightness inspection device. The inspection device comprises one rigid ribbed plate and four rigid flat plates. The rigid ribbed plate is composed of a main plate and two pairs of rib plates. The two pairs of the rib plates are symmetrically arranged at the two sides of the waist parts of the main plate respectively. The shield tunnel elastic sealing gasket "dual-waterproof" water-tightness inspection device is used so that limitation that only penetration performance of the contact surface of an elastic sealing gasket and a steel molding plate is inspected in the existing test methods is extended, experimental study work on penetration performance of the contact surface of the elastic sealing gasket and concrete can be carried out, and waterproof performance of using a dual-waterproof sealing gasket structure in the project can be accurately simulated. Besides, the inspection device can be matched with the widely used common concrete anti-permeability instruments at present so that processing cost is reduced.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering, in particular to a method for testing the "two-way waterproof" watertightness of a shield tunnel elastic gasket directly bonded to concrete. Background technique [0002] There are a large number of joints between the shield tunnel lining segments. At present, the expected waterproof effect is mainly achieved by pasting and extruding EPDM elastic gaskets into the prefabricated grooves of the segments. At present, the waterproof effect is mostly verified by simulation or calculation through experiments. [0003] In the tests done by domestic scholars, the method of opening a groove on the steel mold is basically adopted, the elastic gasket is placed in the groove and the waterproof performance of the elastic gasket is tested. For example, the current national standard "Polymer Waterproof Materials Part 4: Rubber Gaskets for Shield Tunnel Segments" (GB 18173.4-2010) discusses the water ...

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 Patents(China)
IPC IPC(8): G01M3/02
Inventor 陆采荣刘伟宝梅国兴王珩戈雪良杨虎
Owner NANJING HYDRAULIC RES INST
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com