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Construction method of double-layer orthogonal frame culvert in underground excavation station

A construction method and frame culvert technology, applied in underground chambers, earthwork drilling, shaft equipment, etc., to achieve the effect of improving civilized construction, eliminating safety risks, and reducing construction difficulty

Active Publication Date: 2020-12-29
THE 4TH ENG OF CHINA RAILWAY 5TH ENG GROUP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no safe and simple construction method for long-span double-layer orthogonal frame culverts

Method used

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  • Construction method of double-layer orthogonal frame culvert in underground excavation station
  • Construction method of double-layer orthogonal frame culvert in underground excavation station
  • Construction method of double-layer orthogonal frame culvert in underground excavation station

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Embodiment Construction

[0056] see Figure 1 to Figure 4 , the construction method of the double-layer orthogonal frame culvert in the underground excavation station of the present embodiment, its double-layer orthogonal frame culvert comprises the upper layer frame culvert and the lower layer frame culvert; The left and right holes 30 of the lower frame culvert and the middle hole 70 of the lower frame culvert are formed vertically; the bottom of the lower frame culvert is an inverted arch structure; the specific construction method includes the following steps: S1: construction of the structure of the upper layer culvert 10; S2: the left and right sides of the lower frame culvert Construction of the tunnel structure; S3: Construction of the middle tunnel structure of the lower frame culvert.

[0057] Specifically, the step S1 includes the following steps:

[0058] S11: Excavation and support construction of upper culvert 10;

[0059] S12: Concrete 20 construction of the upper culvert structure; ...

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Abstract

The invention relates to a construction method of a double-layer orthogonal frame culvert in an underground excavation station. A method of layering up and down, first up and then down, staggering left and right, first side and then middle, and middle wall stepping is adopted, the double-layer orthogonal frame culvert of a whole rescue channel is divided into eight parts for construction, an upper-layer frame section is excavated from the transverse rescue channel firstly, then middle wall, side wall and top plate structure concrete is constructed, after a longitudinal large-span transition section is excavated, a lower-layer frame is excavated in a left-right staggered mode in the longitudinal direction, left and right side lower-layer inverted arches and side wall structure concrete areconstructed, a middle hole part is excavated after the left and right side inverted arches and the side wall structure concrete are constructed, and the middle hole inverted arches are constructed andfilled with concrete. The construction method has the characteristics of less material consumption, simple construction method, less procedure conversion and safety and reliability in construction.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a construction method for a double-layer orthogonal frame culvert in an underground excavation station. Background technique [0002] In order to facilitate the transportation of tourists, the stations of tourist attractions are generally located near the scenic spots to achieve zero transfers. There are more and more cases that tourist attraction stations are designed as underground excavated stations due to terrain reasons or in order to reduce the impact on the scenic environment. Due to the large number of tourists and the large flow of passengers at the tourist attraction station, the requirements for the disaster prevention and rescue system of the station are high. [0003] Since underground excavation stations generally use a single inclined shaft as the construction passage and rescue passage, it is inevitable that the rescue passage on one side will form a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/14E21D9/00E21D11/00E21D11/10E21D11/15E21D20/00
CPCE21D9/14E21D9/00E21D9/006E21D11/00E21D11/10E21D11/152E21D20/00Y02E10/20
Inventor 刘臻武肖承倚蒋思罗都颢段仕军王斌唐新文
Owner THE 4TH ENG OF CHINA RAILWAY 5TH ENG GROUP
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