A method of using open shield machine to construct underground box culvert

A shield machine and an open technology, applied in underground chambers, earthwork drilling, shaft equipment, etc., can solve problems such as heavy on-site workload, affecting the assembly accuracy of underground box culverts, and difficulty in ensuring the quality of underground box culvert pouring on site. , to achieve the effect of reducing noise and vibration

Active Publication Date: 2021-06-22
SHANGHAI LIXING ENG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the construction of underground box culverts in cities mostly adopts the construction method of sloping excavation and cast-in-place support. This method has a large workload on site, difficulty in ensuring the quality of on-site pouring of underground box culverts, maintenance time of underground box culverts, and impact on the surrounding environment. Great disadvantages; recently, the construction methods of prefabrication in the factory, underground box culvert transportation, and on-site assembly and tensioning have emerged. This method uses excavators to excavate slopes on site, and underground box culverts are transported by conventional trailers, truck cranes or crawler cranes, etc. Hoisting form
Due to the large slope next to the foundation pit of the underground box culvert and the bearing problem on the slope, the crane station is far away, and only small-tonnage underground box culverts can be lifted for assembly.
[0003] In addition, due to the long hoisting wire rope, the assembly accuracy of the underground box culvert is affected

Method used

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  • A method of using open shield machine to construct underground box culvert
  • A method of using open shield machine to construct underground box culvert
  • A method of using open shield machine to construct underground box culvert

Examples

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Embodiment 1

[0024] Embodiment 1: as figure 1 , 2 , 3, this embodiment specifically relates to a method for using an open shield machine to construct an underground box culvert, and the method mainly includes the following steps:

[0025] (1) Prepare various construction equipment and underground box culvert components, mainly including open shield machine 1, culvert body hoisting mechanism 2, excavator 3, backfill excavator and several culvert bodies 4; among them:

[0026] The open shield machine 1 includes the front tunneling cabin 5 and the rear body installation cabin 6 hinged by the hinge mechanism 7. Through the left and right, up and down travel differences of the hinge mechanism 7, the front tunnel 5 and the rear body installation Relative bending can be produced between cabins 6 for curved construction;

[0027] The front excavation cabin 5 can cut and excavate the soil, and there are sliding type soil retaining arms 9 on both sides of its front. Wedge-shaped surface, while th...

Embodiment 2

[0054] Embodiment 2: as Figure 4 , 5 , 6, the present embodiment specifically relates to a method for using an open shield machine to construct an underground box culvert, and the method mainly includes the following steps:

[0055] (1) Prepare various construction equipment and underground box culvert components, mainly including open shield machine 17, culvert body hoisting mechanism 19, excavator 18, backfill excavator and several culvert bodies 23; among them:

[0056] The open shield machine 17 includes a front tunneling cabin 20, a middle reaction support cabin 21 and a rear culvert installation cabin 22 connected in sequence, wherein:

[0057] The front excavation cabin 20 can cut and excavate the soil, and the two sides of its front are provided with sliding soil retaining arms 26. wedge-shaped surface, and the rear end of the sliding type soil retaining arm 26 is driven by a hydraulic cylinder (not shown in the figure) located in the front excavation cabin 20, and ...

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Abstract

The invention discloses a method for constructing an underground box culvert by using an open shield machine, which comprises the following steps: using the open shield machine to excavate from a starting shaft to a receiving shaft, and the top of the open shield machine is aligned with the ground Excavation and transportation of soil is carried out by an excavator on the ground in front of the open shield machine; the open shield machine stops after each excavation of a preset distance, and the culvert body is hoisted by the culvert lifting mechanism on the ground to enter the open The culvert in the type shield machine is introduced into the box room to connect with the installed culvert; after the installation of the culvert is completed, continue to control the open shield machine to drive forward; and so on, until the construction of the underground box culvert is completed. The advantages of the present invention are: (1) The scope of influence of the shield machine construction is smaller than that of the open cut method, and can be used in narrow construction occasions; (3) Adopt shield oil cylinder to propel, which can reduce noise and vibration.

Description

technical field [0001] The invention belongs to the technical field of underground box culverts, and in particular relates to a method for constructing underground box culverts by using an open shield machine. Background technique [0002] At present, the construction of underground box culverts in cities mostly adopts the construction method of sloping excavation and cast-in-place support. This method has a large workload on site, difficulty in ensuring the quality of on-site pouring of underground box culverts, maintenance time of underground box culverts, and impact on the surrounding environment. Great disadvantages; recently, the construction methods of prefabrication in the factory, underground box culvert transportation, and on-site assembly and tensioning have emerged. This method uses excavators to excavate slopes on site, and underground box culverts are transported by conventional trailers, truck cranes or crawler cranes, etc. Lifting form. Due to the large slope...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/06E21D9/08E21D11/10
CPCE21D9/06E21D9/0607E21D9/08E21D11/10
Inventor 沈冲穆震强王宝童黄旭侯程伟梁辰麒
Owner SHANGHAI LIXING ENG TECH DEV
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