Box culvert pushing construction method integrating comprehensive grouting, pressure maintaining and pipe roof support

A technology of pipe curtain and box culvert, applied in the direction of road bottom layer, mining equipment, earthwork drilling, etc., can solve the problems of large settlement of road surface and difficult jacking, and achieve the effects of controlling settlement, effective water blocking and pressure control.

Active Publication Date: 2014-02-05
天津市水利工程有限公司
View PDF5 Cites 37 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art, aiming at the problems of large road surface settlement and difficult jacking in the middle and later sta

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
  • Box culvert pushing construction method integrating comprehensive grouting, pressure maintaining and pipe roof support
  • Box culvert pushing construction method integrating comprehensive grouting, pressure maintaining and pipe roof support
  • Box culvert pushing construction method integrating comprehensive grouting, pressure maintaining and pipe roof support

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] In order to understand the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and embodiments:

[0042] Such as Figure 1 to Figure 8 As shown, the water tank culvert of the South-to-North Water Diversion Project crosses the Jinbao Expressway at Yangfen Port. The following innovative technologies have been adopted for the water tank culvert of the South-to-North Water Diversion Project, and successfully pushed. The road settlement meets the design requirements.

[0043] 1. Multiple comprehensive grouting, see attached figure 1 Shown:

[0044] Perform multiple low-pressure pulse reinforcement grouting on the top of the tube curtain to form a cement-soil roof. The purpose is to prevent the high pressure of the shield head mud tank during the construction of the pipe curtain, and the arch cracking of the road surface, and to prevent the road surface from sinking when the earth pressure tank loses pressu...

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
Diameteraaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

A box culvert pushing construction method integrating comprehensive grouting, pressure maintaining and pipe roof support is characterized in that a box culvert is pushed under the pipe roof support on a culvert pushing construction working surface, and simultaneously, comprehensive grouting, lubrication, friction reduction and pressure maintaining measures are taken to control pavement sedimentation. The construction method comprises the steps of pushing the box culvert under the pipe roof support, performing the comprehensive grouting in places, forming a pressure maintaining lubrication film around a box culvert pushing body, and micro-controlling grouting under the pavement to reduce the pavement sedimentation. The method has the benefits that the pipe roof support, comprehensive grouting as well as pressure maintaining and lubrication measures are added in the construction method based on a common culvert pushing method; the prefabricated box culvert is pushed under the protection of a pipe roof; the whole construction process integrates underground water sealing, temporary tunnel face reinforcing and ground elevation micro-control measures; crossing construction can be accomplished under the condition that normal traffic of an expressway is ensured; land requisition and side rod construction expenses are not required to be increased; the risk and construction cost are low; the construction period is short; compared with the prior conventional culvert pushing technology, the method shows good superiority.

Description

technical field [0001] The present invention relates to the technical field of roof culvert construction under expressway pavement, and in particular to a box culvert jacking method of comprehensive grouting pressure maintaining and pipe curtain support, that is, steel pipe curtain + comprehensive grouting construction method, which is applied to underpassing expressway Top culvert construction and top culvert construction under other road surfaces. Background technique [0002] Top culvert construction is also called jacking culvert construction. The advantage of this construction method is that it has little impact on traffic on existing roads. [0003] At present, the methods commonly used in the prior art of roof culvert construction under the pavement include: [0004] 1. In the case of no pipe shed support, the disadvantage of directly jacking into the culvert without taking any measures (belonging to the known technology) is that the distance of the jacking culver...

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): E01F5/00E21D9/00
Inventor 杜辉陈佑新禹作利
Owner 天津市水利工程有限公司
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