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Mechanical method connecting channel construction method using pipe jacking technology

A communication channel and construction method technology, applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve the problems of difficulty in comprehensive promotion, high cost, and inability to synchronize grouting, etc., to achieve automatic services, reliable quality, and small environmental disturbances Effect

Pending Publication Date: 2021-12-07
浙江杭海城际铁路有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent with the application number CN201710216575.0 discloses an assembled communication channel structure and its construction method, which adopts the shield tunneling method. This method can be adapted to the construction of a longer distance communication channel, but the method cannot be synchronized Grouting, suitable for weak water-bearing formations, has certain risks for water-rich formations
The Chinese patent with the application number CN201810537259.8 discloses a communication channel shield construction method and a communication channel. During the shield construction process, the shield shell is gradually assembled and lengthened and finally retained in the soil. The cost is relatively high. Difficult to fully promote

Method used

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  • Mechanical method connecting channel construction method using pipe jacking technology
  • Mechanical method connecting channel construction method using pipe jacking technology
  • Mechanical method connecting channel construction method using pipe jacking technology

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Embodiment 1

[0071]Embodiment 1 of the present application provides a mechanical method of connecting channel construction method using pipe jacking technology, including construction preparation, pipe jacking initiation, excavation construction and pipe jacking construction, wherein the construction preparation stage includes track laying in the main tunnel 1, hydropower Installation, grouting reinforcement of the main tunnel, production of ring beams at the door of the starting tunnel, 1# back supporting trolley, 2# rear supporting trolley, 3# rear supporting trolley (including starting sleeve and main engine), 4# rear supporting platform Car, 5# rear supporting trolley (including receiving sleeve) assembly positioning and sleeve connection, starting and receiving sleeve filling; pipe jacking starting and tunneling construction stages include starting parameter control, tunneling parameter control, pipe joint Assembly, anti-friction grouting, post-wall grouting, attitude control; pipe jac...

Embodiment 2

[0152] The length of the left line of the shield section between Yuhang High-speed Railway Station and Xucun Town Station of Hanghai Intercity Railway Project is 3126.22m, the starting mileage: ZDK0+437.570, the end mileage: ZDK3+563.487, and the long chain is 0.303m; the right line length of the shield section between Yuhang and Xucun is 3126.555m , starting mileage: YDK0+437.570, end mileage: YDK3+563.847, long chain 0.278m. The minimum curve radius of the line is 800m, the maximum curve radius is 4000m, the buried depth of the tunnel is 7.6m~25m, the line spacing is 10.8~16m, and the maximum longitudinal slope is 28‰. In this section, three mechanical communication channels are set up at left DK0+785.000 (right DK0+787.798), right DK1+237.420 (left DK1+239.019), and right DK1+800.000 (left DK1+801.599).

[0153] like Figure 4 As shown, the center mileage of 1# communication channel 7 is left DK0+785.000 (right DK0+787.798), the main tunnel rail surface is -22.647 (-22.689...

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Abstract

The invention relates to a mechanical method connecting channel construction method using a pipe jacking technology. The method comprises the steps: S1, conducting construction preparation; S2, starting pipe jacking and carrying out tunneling construction; and S3, conducting pipe jacking receiving construction. The method have the beneficial effects that the spliced connecting channel structure and the pipe jacking method construction method have the advantages of high construction mechanization degree, reliable quality, high speed, no soil body pre-reinforcement, low manufacturing cost and small environmental disturbance and the like. A small-diameter earth pressure balance pipe jacking machine and post-corollary equipment are integrally designed with a supporting system in a tunnel, tunneling, pipe piece splicing, deslagging, feeding and grouting in the tunnel construction process are achieved, and full-mechanical operation is achieved. An inner supporting system is provided with an automatic oil pressure adjusting device, the jacking force of a supporting oil cylinder is automatically adjusted along with tunnel stress changes, and automatic service is comprehensively achieved.

Description

technical field [0001] The invention relates to the technical field of subway communication channel construction, in particular to a mechanical method communication channel construction method utilizing pipe jacking technology. Background technique [0002] In the middle of the uplink and downlink tunnels of urban rail transit, the structure or structure of excavating a channel and setting a partition wall and a fire door inside it is called a communication channel. If the communication channel is at the lowest point of the tunnel section, the elevation of the communication channel can be lowered, and at the same time, a sump pit is excavated downward at the bottom of the communication channel to connect the water diversion system of the tunnel in the section, and drainage facilities such as water pumps should be installed at the same time. The communication channel is mainly to connect the up and down tunnels of the subway, which can be used to evacuate people in an emergen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06E21D9/093E21D11/00E21D11/08E21D11/10
CPCE21D9/06E21D9/0607E21D9/0678E21D9/093E21D11/003E21D11/08E21D11/10
Inventor 葛佳佳李海波赵星星刘阳杨敏龙徐汪豪周长永刘晓波张永南张想陈
Owner 浙江杭海城际铁路有限公司
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