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Method and equipment for lateral supplement launching through special-shaped steel sleeve

A special-shaped steel and sleeve technology, which is applied in mining equipment, shaft lining, shaft equipment, etc., can solve the problems affecting the construction progress and low construction efficiency, and achieve the effects of accelerating the construction progress, shortening the construction period, and reducing the net width

Pending Publication Date: 2022-02-08
NO 1 ENG CO LTD OF CHINA RAILWAY 22ND CONSTR BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this traditional construction method has a short translation distance of the shield machine, the overall construction efficiency is low because the marshalling train cannot be transported to the designated location through the track, which seriously affects the construction progress

Method used

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  • Method and equipment for lateral supplement launching through special-shaped steel sleeve
  • Method and equipment for lateral supplement launching through special-shaped steel sleeve
  • Method and equipment for lateral supplement launching through special-shaped steel sleeve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see figure 1 , a method for laterally replenishing initiation using a special-shaped steel sleeve, comprising the following steps

[0032] Step 1. Shaft construction. Carry out enclosure pile construction and crown beam construction in the area where the shaft needs to be excavated, then excavate in layers, hang nets and spray anchors on each layer of the dug shaft, and install on the shaft wall Steel supports and steel enclosures, after layered construction and excavation, remove the steel supports and steel enclosures step by step;

[0033] Step 2: Translate the cross-channel construction, firstly reinforce the horse head door, then use the sub-pilot hole to break the horse head door, set up a small conduit in the soil around the sub-pilot hole for grouting reinforcement, and then carry out grouting on the sub-pilot hole after reinforcement Excavate the soil, then erect the steel grid and install the lock-foot anchor pipe grouting. After the shotcrete solidifies, rem...

Embodiment 2

[0041] see Figure 2~4 , a device that uses a special-shaped steel sleeve to supplement the starting device laterally, including

[0042] The special-shaped steel sleeve is set at the door opening of the inclined surface that needs to be cut by the shield machine, and it is composed of a plurality of steel rings 1 and arc-shaped plates 2 welded on the steel rings 1;

[0043] The portal type reaction frame is arranged at the tail end of the shield machine, and it is composed of a support ring 6 with a portal structure and a reaction force ring 7 with a ring structure.

[0044] In the embodiment of the present invention, when the special-shaped steel sleeve is positioned, the center line of the special-shaped steel sleeve coincides with the line center line, and the welding seam of the arc-shaped plate 2 of the special-shaped steel sleeve is along the inner and outer sides of the steel ring 1. Fully welded.

[0045]In the embodiment of the present invention, two sanded and com...

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PUM

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Abstract

The invention discloses a method and equipment for lateral supplement launching through a special-shaped steel sleeve. The method comprises steps of shaft construction, translation transverse channel construction, shield end grouting reinforcement, shield hoisting translation and shield launching. The method is advantaged in that the launching requirement of a shield tunneling machine can be met under the conditions that the ground space is narrow and limited and ground traffic is not affected, the designed structure is safe and stable, ground road traffic guiding and changing and pipeline changing and moving are avoided, the influence on the surrounding environment of a city is reduced, requirements of shield launching and discharging, transportation and the like in the tunneling stage are met, the construction progress is accelerated, the channel utilization rate is increased, and the construction cost is saved; a shield translation channel is adjusted from a vertical angle to an oblique angle, so the translation channel can be used as a transportation channel for materials and muck during construction, and the channel utilization rate is greatly increased; and the shield tunneling machine moves forwards instead of transversely, the clear width of a translation channel is correspondingly reduced, and the construction period is shortened.

Description

technical field [0001] The invention relates to a method for starting lateral replenishment of a shield machine, in particular to a method and equipment for lateral replenishment using a special-shaped steel sleeve, and belongs to the technical field of civil engineering. Background technique [0002] With the continuous development of social economy, more and more attention has been paid to the use of underground space, and more and more cities have relieved traffic pressure by building subways. The shield tunneling method has been widely used in urban subway construction due to its advantages of safety, informatization, mechanization, and less impact on ground traffic. At present, in the construction of the shield method, the shield machine is mostly assembled on the main line of the line at the station or section shaft position, and then the shield is started. There are a large number of engineering cases at home and abroad, and mature supporting technologies have been fo...

Claims

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Application Information

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IPC IPC(8): E21D9/06E21D1/08E21D5/11E21D5/12E21D9/14E21D9/00E21D11/00E21D11/15E21D11/10E21D11/38E21D20/02E21D9/02E21D9/087E21F13/00
CPCE21D9/0609E21D9/0692E21D9/0621E21D1/08E21D5/11E21D5/12E21D9/14E21D9/001E21D11/00E21D11/152E21D11/10E21D11/38E21D20/02E21D9/02E21D9/0873E21F13/00
Inventor 李海生杨树民朱占魁黄明利周富宽何先虎徐骏青张慧
Owner NO 1 ENG CO LTD OF CHINA RAILWAY 22ND CONSTR BUREAU