Construction mode with full cross-section tunneller

A technology of a full-section roadheader and a construction method, which is used in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of high installation accuracy of rubber water-stops, incompact backfilling of peas and gravels, difficult to repair and difficult to handle, etc. Grouting effect, low cost, convenient filling effect

Inactive Publication Date: 2004-09-15
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, wherein: it also includes segment water-stopping technology, backfilling pea gravel and pouring cement slurry technology; The water process consists of the following steps:

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

[0023] 2), the oil-impregnated mineral wool 3 is placed on the butt joint 2 at the bottom of the filling groove 9 formed between the segments 8, so as to block the butt joint 2 between the two segments 8;

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

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

...

Embodiment 2

[0035] The construction method of the full-face roadheader in this embodiment includes processes such as cutting rocks and lining segments, wherein: it also includes the segment water-stopping process and backfilling pea gravel and pouring cement slurry processes; the segment water-stopping process consists of Consists of the following steps:

[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 segments to block the butt joint between the two segments;

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

[0039] 4) Wedge the iron wedge into the modified asphalt plastic water-stop material from the top of the filling tank to compress the plastic water-stop material;

[0040] 5) Backfill the gap between the surface of the segment with high-strength cement mortar, and c...

Embodiment 3

[0049] The construction method of the full-face roadheader in this embodiment includes processes such as cutting rocks and lining segments, wherein: it also includes the segment water-stopping process and backfilling pea gravel and pouring cement slurry processes; the segment water-stopping process consists of Consists of the following steps:

[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 tank formed between the segments to block the butt joint between the two segments;

[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 into the elastic polyurethane plastic material from the top of the filling tank to compress the plastic water-stop material;

[0054] 5) Backfill the butt joint gap on the surface of the segment with high-strength c...

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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 plastic water-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, backfilling gravel, pouring cement slurry, finally releasing air from hose and pouring cement slurry.

Description

technical field [0001] The invention relates to a construction method of a full-face tunneling machine, which belongs to a construction method for preventing water leakage at joints of segments by embedding plastic materials into filling grooves and using a rubber hose to prevent uncompacted backfilling of pea gravel and leakage of grout. Background technique [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 driving speed, safety and reliability, high degree of mechanization and automation, and good working environment, due to During machine construction, it is necessary to line the segments while excavating, backfilling pea gravel and pouring cement slurry. Therefore, when lining the segments, a large number of joints are likely to be formed at the joints of the segments. If these joints are not handled properly, water leakage channels will b...

Claims

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Application Information

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