Repeated adaptive grouting system and construction method

A grouting system and self-adaptive technology, applied in infrastructure engineering, soil protection, construction, etc., can solve problems such as large sleeve valve pipe diameter, affecting the bearing capacity of anchor bolts, and loss of effective cross-sectional area of ​​anchor bolts and anchors , to achieve the effect of wide application range, simple production and easy operation

Inactive Publication Date: 2011-12-07
CHINA JINGYE ENG +1
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2) When the sleeve valve pipe is used for segmental grouting, multi-stage grouting can be carried out according to its structure, but the diameter of the sleeve valve pipe is relatively large, generally greater than 50mm, and the anchor bolt is easy to be anchored when the diameter of the anchor bolt hole is small The influence of the loss of the effective cross-sectional area of ​​the

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
  • Repeated adaptive grouting system and construction method
  • Repeated adaptive grouting system and construction method
  • Repeated adaptive grouting system and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] A specific implementation method of a repetitive self-adaptive grouting system and construction process, the basic steps are as follows:

[0056] 1. If figure 1 , 2 As shown in , 3, two 19m ordinary galvanized pipes with an outer diameter of 22mm and an inner diameter of 18mm are used as split grouting pipes. The maximum diameter of the flexible pressure opening valve is 4mm. The same 30mm grouting pipe is used to make a U shape with a bending machine. The diameter of the U shape is 60mm, and it is placed at the bottom of the U shape. Set a grouting port with a diameter of 8mm, install a flexible pressure opening valve, connect the U-shaped pipe with the two sections of the grouting pipe respectively to form a long U-shaped pipe, and keep the distance between the straight pipe sections of the grouting pipe greater than 60mm. Two valves are installed respectively for pressure grouting and grouting pipe cleaning. After the grouting pipe is manufactured, it is fixed with t...

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

A repetitive self-adaptive grouting system and its construction method. The grouting system includes an open-circuit or closed-circuit grouting system consisting of a grouting pipe with a pressure-opening check valve, an adjustable pressure grouting pump, a cleaning pump, and an anchor hole. system, repeating segmental pressure regulation and secondary splitting grouting for the bolts that have completed the hole-forming grouting of the bolts. Change the splitting grouting pressure by adjusting the pressure grouting pump to open the grouting valves at different positions on the grouting pipe to complete the splitting grouting at a specific position, then use the cleaning pump to clean the grouting pipe, and repeat the adjustment for the pressure grouting pump Different pressures are used to open the grouting valves at different positions to split the grouting again, and this process is repeated many times to complete the multiple grouting splitting design requirements. The application system and its construction method finally realize the splitting of the bolt by multiple staged pressure grouting, increase the side friction resistance of the bolt, improve the load bearing capacity of the bolt, and reduce the deformation of the bolt, so as to effectively deal with the weak soil and rock layers The reinforcement can effectively enhance the entire anchoring system.

Description

technical field [0001] The invention relates to a ground treatment grouting technology, in particular to a repetitive self-adaptive grouting system and a construction method thereof. Background technique [0002] In the field of civil engineering, repeated splitting grouting technology is widely used in the support system of foundation treatment. When the bolt anchorage section passes through the weak soil layer and rock layer, due to the low shear strength and high water content of the rock layer, The anchoring body-soil side friction resistance that can be provided is also low, so the tensile bearing capacity of the anchor is low. The security of the anchorage system. In order to deal with these unfavorable conditions well, the secondary or multiple splitting grouting process is widely used to strengthen the rock and soil within a certain range around the anchor, improve the shear strength of the rock and soil around the anchor, and reduce the creep of the rock and soil. ...

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): E02D3/12
Inventor 张智浩杨松马凛李虎赵琰飞韩晓猛张慧乐
Owner CHINA JINGYE ENG
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