Unlock instant, AI-driven research and patent intelligence for your innovation.

Underground large-span space structure and construction method thereof

A technology of space structure and construction method, which is applied in basic structure engineering, underground chambers, earthwork drilling and mining, etc., can solve the problems of low efficiency, complicated steps, no safety and quality assurance, etc. Strong execution and high construction efficiency

Active Publication Date: 2020-12-11
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of complex steps, low efficiency and no safety and quality assurance in the existing construction of underground long-span space, the present invention proposes an underground large-span space structure and its construction method, which draws on the structural form of long-span bridges on the ground, Combined with the PBA construction method and mechanized underground excavation technology, the safe and efficient construction of underground long-span space structures can be realized

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Underground large-span space structure and construction method thereof
  • Underground large-span space structure and construction method thereof
  • Underground large-span space structure and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049]Embodiment 1: a kind of underground long-span space structure, such as figure 1 and figure 2 As shown, it includes two side pilot tunnels 5 and at least one middle pilot tunnel 6 obtained through underground excavation construction, and the middle pilot tunnel 6 is arranged between the two side pilot tunnels 5; The quantity of guide hole 6 in span setting, in the present embodiment, the quantity of middle guide hole 6 is one, is arranged in the middle part of two edge guide holes 5, and the shape of the cross section of edge guide hole 5 can be circular, rectangular Or similar rectangle etc., two side guide tunnels 5 later stages can be used as the driving tunnel of train; Below, the middle part of the layer space support structure is hollow and can be used as a platform hall; the longitudinal connecting beam 9 of the pile top is arranged along the axial direction in the middle pilot tunnel 6, and the pile top longitudinal connecting beam 9 is provided with a pile supp...

Embodiment 2

[0054] Embodiment 2: An underground large-span space structure. The difference between this embodiment and Embodiment 1 is that the number of middle pilot tunnels 6 is different. In this embodiment, the number of middle pilot tunnels 6 is two, and the two middle pilot tunnels 6 is symmetrically arranged between the two side guide holes 5, and both sides of the two middle guide holes 6 are symmetrically provided with inner stay cables 17 and outer stay cables 13, and the inner stay cables 17 and the outer stay cables between the two middle guide holes The lower parts of the outer stay cables 13 are all connected to the top cover 14 through the top cover stringer 16, and other structures are the same as in Embodiment 1.

Embodiment 3

[0055] Embodiment 3: A construction method for an underground large-span space structure, comprising the following steps:

[0056] S1, cross aisle construction: such as image 3 As shown, excavate the starting cross passage 1 and the end cross passage 2 respectively on both sides of the project site to be constructed;

[0057] The starting cross passage 1 is located at the longitudinal starting point of the project site, and can be used as a common foundation pit for the initial construction of the side pilot tunnel 5 and the middle pilot tunnel 6. The construction of the starting cross passage 1 can be constructed by open cut or cover excavation ;The end cross passage 2 is located at the longitudinal end of the project site, and the end cross passage 2 can be constructed in an integral form, that is, excavating the overall common foundation pit within the horizontal span; it can also be in a separate form, that is, the side pilot tunnel and the middle pilot tunnel The requir...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an underground large-span space structure and a construction method thereof. The underground large-span space structure comprises two side pilot tunnels and at least one middlepilot tunnel which are obtained through underground excavation construction. The two side pilot tunnels are communicated through a layer space supporting structure, the layer space supporting structure is arranged below the middle pilot tunnel, a pile top longitudinal connecting beam is arranged in the middle pilot tunnel in the axis direction, a pile body supporting structure is arranged below the pile top longitudinal connecting beam, and the pile body supporting structure downwards penetrates through the layer space supporting structure. The underground large-span space structure is simple, implementation of the large-span space structure can be achieved, the large-span space structure can be suitable for various places such as subway stations, underground parking lots, underground multi-lane highway tunnels, underground commercial streets and underground stadiums, the construction method is high in executability, and rapid and safe construction of underground large-span space engineering can be achieved.

Description

technical field [0001] The invention belongs to the technical field of tunnels and underground engineering, and in particular relates to an underground large-span space structure and a construction method thereof. Background technique [0002] At present, the development and construction of underground space is developing rapidly. With the improvement of people's demand for the use of underground space, the structural form of underground space tends to be diversified and the construction scale is gradually increasing. Construction technology puts forward higher requirements. The traditional beam-column structure system and its construction technology have been difficult to meet the needs of modern underground large space, how to build large-span underground space underground has increasingly become the focus of attention. [0003] Existing technology constructs underground long-span space structures, such as the PBA construction method of subway stations, through the constr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E21D13/00E21D13/02E02D5/22E01F1/00
CPCE21D13/00E02D5/22E01F1/00
Inventor 程鹏罗长明于少辉李洋付增张雯雯苏明浩
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD