Construction method for reserved laterally widened structure of underground box culvert structure

A technology of structural construction and box culverts, which is applied in the direction of earthwork drilling, road bottom layer, mining equipment, etc., which can solve the problems of increased construction difficulty, construction period and construction risks, difficulty in adjusting support positions, and difficulty in bearing the supporting axial force on the side walls of box culverts and other issues to achieve the effect of reducing construction risk and difficulty, simple and convenient construction, and saving construction period
CN103866701AActive Publication Date: 2014-06-18SHANGHAI MUNICIPAL ENG DESIGN INST GRP
5 Cites 10 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
Publication Date
2014-06-18

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a construction method for a reserved laterally widened structure of an underground box culvert structure. The method comprises the following steps: carrying out the future expansion on the side walls for the box culvert structure in advance, additionally arranging reinforced concrete pilasters to be used as vertical components for bearing horizontal water and earth pressure during foundation pits excavation in expansion; using top plates, middle plates and bottom plates to support the side walls of expansion sides, and arranging steel bar connectors in the plates. In later expansion, as the pilasters can be used as load-bearing components for lateral support of foundation pits, construction risk, construction difficulty and influence on the normal operation of an already built tunnel are greatly reduced, the construction is simpler and more convenient, and the construction period is shortened.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to the field of construction of underground caverns constructed in the form of underground box culverts, in particular to the construction of underground caverns constructed in the form of underground box culverts (including tunnels such as roads and subways), which require lateral widening to meet long-term needs. The reserved structure construction type is specifically a structural construction method in which the underground box culvert structure is reserved for lateral widening. Background technique

[0002] The horizontal widening construction of underground box culvert structures often has the following problems:

[0003] 1. The construction risk is relatively high, which is represented by chiseling the top and bottom concrete of the box culvert structure that has been put into operation in the early stage to connect with the steel bars of the later widened box culvert structure. The concrete at the corner of the bo...

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