Construction mode with full cross-section tunneller

A full-face tunnel boring machine and construction method technology, which is applied in the direction of earth square drilling, mining equipment, tunnels, etc., can solve the problems of high installation precision of rubber waterstop, non-compact backfill pea gravel, difficult to repair and difficult to handle, etc., to achieve improvement Grouting effect, low cost, convenient filling effect

Inactive Publication Date: 2002-08-07
刘丽萍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems of high installation precision of rubber waterstop, high cost, difficult to repair and difficult to handle, poor waterstop effect, non-compactness of backfill pea gravel and leakage of grout; Construction method of repairing and backfilling pea gravel dense and cement-tight slurry and easy-to-operate full-face tunneling machine

Method used

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  • Construction mode with full cross-section tunneller
  • Construction mode with full cross-section tunneller
  • Construction mode with full cross-section tunneller

Examples

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Effect test

Embodiment 1

[0021] Such as figure 1 , figure 2 As shown, the construction method of the full-face roadheader in this embodiment includes processes such as cutting rocks and lining segments, among which: it also includes segment water-stop technology, backfilling bean gravel and cement slurry pouring technology; segment stop The water process consists of the following steps:

[0022] 1). Butt the prefabricated reinforced concrete segments 8 according to the design requirements;

[0023] 2) Put the oil-impregnated mineral wool 3 on the butt joint 2 at the bottom of the filling tank 9 formed between the tube pieces 8 to block the butt joint 2 between the two tube pieces 8;

[0024] 3) Insert the plastic water stop material of non-vulcanized butyl rubber (GB) 4 into the filling tank 9 until it is filled;

[0025] 4) Wedge the iron wedge 5 from the top of the filling groove 9 into the plastic water stop material of the non-vulcanized butyl rubber 4 to compress the plastic water stop material;

[...

Embodiment 2

[0035] The construction method of the full-face roadheader in this embodiment includes cutting rock and lining pipe segments, among which: it also includes the pipe segment water-stop technology and the backfilling of pea gravel and the cement slurry pouring technology; the segment water-stop technology consists of The following steps are composed:

[0036] 1). Butt the prefabricated reinforced concrete segments according to the design requirements;

[0037] 2). Arrange the rubber on the butt joint at the bottom of the filling groove formed between the tube pieces to block the butt joint between the two tube pieces;

[0038] 3). Insert the plastic water stop material of the modified asphalt into the filling tank until it is filled;

[0039] 4). Wedge the iron wedge from the top of the filling groove into the modified asphalt plastic water stop material to compact the plastic water stop material;

[0040] 5). Use high-strength cement mortar to backfill the gaps on the surface of th...

Embodiment 3

[0049] The construction method of the full-face roadheader in this embodiment includes cutting rock and lining pipe segments, among which: it also includes the pipe segment water-stop technology and the backfilling of pea gravel and the cement slurry pouring technology; the segment water-stop technology consists of The following steps are composed:

[0050] 1). Butt the prefabricated reinforced concrete segments according to the design requirements;

[0051] 2) The polyester non-woven is arranged on the butt joint at the bottom of the filling groove formed between the tube pieces to block the butt joint between the two tube pieces;

[0052] 3). Insert the plastic water-stop material of elastic polyurethane into the filling tank until it is filled;

[0053] 4) Wedge the iron wedge from the top of the filling groove into the elastic polyurethane plastic material to compress the plastic water stop material;

[0054] 5). Use high-strength cement mortar to backfill the gaps on the surfa...

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Abstract

The full-section entry-driving machine construction method includes the following processes of cutting rock, lining pipe-sheet, pipe-sheet water-stopping, backfilling gravel and pouring cement slurry, in which the pipe-sheet water-stopping process includes the following steps: butt-jointing pipe-sheets, placing the filling strip on the butt joint of bottom of filling groove, inserting the plasticwater-stopping material into filling groove, wedging iron wedge from top of filling groove and backfilling high-strength cement slurry into butt-joint seam is pipe-sheet surface, and the process of backfilling gravel and pouring cement slurry includes the following steps: sectionalizing periphery of pipe-sheet, placing rubber hose along the periphery of pipe-sheet, air-inflating hose, backfillinggravel, pouring cement slurry, finally releasing air from hose and pouring cement slurry.

Description

1. Technical field [0001] The invention relates to a construction method of a full-face roadheader, which belongs to a construction method that uses plastic materials to be embedded in a filling groove to prevent water leakage at the joints of pipe segments and use a rubber hose to prevent backfilling of soy gravel from being dense and leaking. 2. Background technology [0002] At present, full-section roadheaders have been widely used in the construction of highways, railways, mining and hydraulic tunnels. Although it has the characteristics of fast digging speed, safety and reliability, high degree of mechanization and automation, and good working environment, it is due to the full-section tunneling. During the construction of the machine, it is necessary to dig while lining the pipe segments, backfill the pea gravel and pour cement slurry. Therefore, when lining the pipe segments, it is easy to form a large number of joints at the joints of the pipe segments. Dealing with the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/00
Inventor 刘丽萍
Owner 刘丽萍
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