Unlock instant, AI-driven research and patent intelligence for your innovation.

One-time rapid grouting construction method for whole hole

A construction method and grouting technology, which are used in earth-moving drilling, shaft equipment, wellbore lining, etc., can solve the problems of inappropriate operation, time-consuming grouting cycle, poor sealing of grouting wall, etc. Ideal effect, reduced thickness effect

Active Publication Date: 2020-08-11
CHINA RAILWAY 18TH BUREAU GRP CO LTD +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Whether it is the forward type or the backward type, the grout cannot be spread evenly, and the number of holes is large. The grout-stop wall is made of molded concrete, which is thick and unsuitable for operation. The entire grouting cycle takes a long time, and the sealability of the grout-stop wall is poor. It is not easy to chisel off in the later stage, the adjustable range of grout setting time is small, the grouting effect has certain limitations, and the surface uplift value is relatively large during the grouting process

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
  • One-time rapid grouting construction method for whole hole
  • One-time rapid grouting construction method for whole hole
  • One-time rapid grouting construction method for whole hole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Relying on the curtain grouting construction of the ultra-shallow buried tunnels crossing the main urban road under the conditions of water-rich and weak surrounding rocks in the sea;

[0053] A certain tunnel goes under the urban traffic arteries and is close to the viaduct piers. The surface traffic volume is large, the pipelines are dense, there are more than 20 6 types of pipelines, and some unknown pipelines;

[0054] The buried depth of the underpass section is relatively shallow (5.4~14.3m), and the stratum in the vault area is mainly mixed fill, silt, residual soil, fully weathered granite, and it is connected to seawater, with poor self-stabilization ability, and the maximum daily water inflow is 1700m 3 , The entire tunnel is below the normal water level;

[0055] The entire grouting process is as follows:

[0056] ① Hole distribution: The excavation section is 58.99 square meters, and the upper half section is filled with full-face grout. There are 120 grouting holes,...

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 full-hole one-time rapid grouting construction method. The full-hole one-time rapid grouting construction method comprises the processes of hole distribution, manufacturing of a grouting pipe, material compounding, grouting and the like. Full-hole one-time grouting is achieved, the full-hole one-time rapid grouting construction method is suitable for textures of backfillsoil, muddy soil, a riprap layer, a sand layer, a full-differentiation layer and a strong-differentiation layer, and the grouting effect is good.

Description

Technical field [0001] The invention relates to a quick grouting construction method for all holes at one time. Background technique [0002] Grouting technology has been widely used in the field of tunnel construction in China, especially for grouting through weathered troughs, broken zones, water-rich and weak surrounding rocks, and strengthening stratum; types include full-section, half-section, peripheral and partial curtain grouting Grouting, single-hole grouting, etc.; the main grouting methods are forward and backward, and the grouting wall is made of molded concrete with a thickness of more than 2m; the hole layout is in the form of full-section, upper half-section, full-section, peripheral or partial Curtain grouting has holes, the entire grouting cycle is longer, and the grouting effect has certain limitations. How to realize the rapid grouting of the whole hole at one time so that the grout can evenly spread to each section of the grouting hole to ensure the whole The...

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): E21D11/10
CPCE21D11/105
Inventor 高海东史鹏飞范旭阳郭彦兵赵涛郑涛孟妍
Owner CHINA RAILWAY 18TH BUREAU GRP CO LTD