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Jacking and descending platform for shield station passing, shield station passing system and construction method

A construction method and station passing technology, which is applied in the direction of earth drilling, mining equipment, mining equipment, etc., can solve the problems of high construction cost and long time consumption, and achieve the effect of reducing construction difficulty, simple structure, and complex station structure

Pending Publication Date: 2020-09-29
CHINA RAILWAY NO 2 ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of high cost and time-consuming construction of the shield machine passing through the station in a narrow space in the prior art, and to find a construction method that can quickly complete the layered insertion of the platform and achieve overall force bearing Requirements and height requirements for jacking up and down, providing a jacking platform for shield tunneling, shield tunneling system and construction method

Method used

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  • Jacking and descending platform for shield station passing, shield station passing system and construction method
  • Jacking and descending platform for shield station passing, shield station passing system and construction method
  • Jacking and descending platform for shield station passing, shield station passing system and construction method

Examples

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Embodiment 1

[0040] A shield passing station system, comprising a shield passing lifting and lowering platform and a shield moving device, the shield passing lifting and lowering platform includes a bracket 1, a bracket base 2 and a jacking base Seat 3; the bracket 1 is rectangular, the bracket 1 is arranged above the bracket base 2, the bracket base 2 includes a multi-layer first cushion layer 211, and each layer of the first cushion layer 211 It includes a plurality of first steel cylinders 4, and the plurality of first steel cylinders 4 are rectangularly distributed, including two rows. In this embodiment, each row of bracket bases 2 is provided with six first steel cylinders 4 with a spacing of 1600mm; Wherein, the diameter of the first steel cylinder 4 is 609mm. Specifically, first steel plates 5 are fully welded on the upper and lower surfaces of each first steel cylinder 4, and the specification of each first steel plate 5 is 70mm*70mm *10mm, the height of each layer of steel cylind...

Embodiment 2

[0047] A shield tunneling station construction method, using a shield tunneling station system of embodiment 1, specifically includes the following steps:

[0048] S1: Preparations before construction: Verify the detailed height from the station floor to the bottom of the middle plate, and meet the station passing conditions when the clearance height is greater than the shield machine 14 height of 300mm or more;

[0049] S2: Installation of the shield passing system: install the platform for the shield machine 14 to descend in advance at the position of the lower step; then stake out and mark the position of the upper step;

[0050] Specifically, the installation process of the forward moving system of the shield machine is as follows: weld the second section steel 19 on the two sides of the front and rear ends of the shield machine 14 respectively, and install a pulley 23 on each second section steel 19; A lifting lug 22 and a reaction support 17 is installed on the first sec...

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Abstract

The invention relates to the technical field of shield construction, and discloses a jacking and descending platform for shield station passing, a shield station passing system and a construction method. The shield station passing system comprises a jacking and descending platform for shield station passing and a shield machine forward moving device. The jacking and descending platform for shieldstation passing comprises a bracket, a bracket base and a jacking base, wherein the bracket base and the jacking base are each provided with a plurality of independent steel cylinders. By means of thebracket base composed of the independent first steel cylinders, shield machine station passing construction in a narrow space can be achieved; the cost for deepening of continuous walls, sinking of structural bottom plates and later backfill in a traditional manner is avoided; the first steel cylinders are simple in structure and easy to disassemble, so that the construction difficulty is reduced; and through the arrangement of the bracket base and the jacking base, layered cushioning of the platform can be quickly completed, the overall stress requirement and requirements for jacking and descending of a shield body can be met, the construction cost is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of shield tunneling construction, in particular to a lifting platform for shield tunneling, a shield tunneling system and a construction method. Background technique [0002] The shield tunneling method refers to the construction method of tunnel excavation, lining and other operations using shield tunneling. A construction method in which a shield is used to excavate a tunnel in a soft foundation or a broken rock formation. The shield is a special equipment with a shield. It uses the lining block installed at the rear as a fulcrum to move forward, cuts the soil with the cutter head, and at the same time discharges the soil and assembles the prefabricated concrete lining block behind. [0003] During shield construction, when moving forward to pass the station or pass through the mine section, it is often encountered that the elevation of the bottom plate is inconsistent, and the shield machine needs to be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/00E21F17/00E21D9/06
CPCE21D9/00E21D9/06E21F17/00
Inventor 严石友陈强李必棋陈卓周鹏胡斌谭斌
Owner CHINA RAILWAY NO 2 ENG GRP CO LTD
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