Pre-assembled single-compartment municipal tunnel and construction method thereof

A prefabricated assembly and comprehensive pipe gallery technology, which is applied in artificial islands, water conservancy projects, infrastructure projects, etc., can solve the problems of difficult quality control and long construction period of cast-in-place structures, and achieve low cost and easy control of project quality. The effect of improving structural safety and durability

Pending Publication Date: 2015-09-30
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of long construction period and difficult quality control of the existing cast-in-place structure of the comprehensive utility gallery, the object of the present invention is to provide a prefabricated single-chamber municipal comprehensive utility gallery and its construction method. The comprehensive utility gallery consists of several prefabricated pipe joints The butt join

Method used

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  • Pre-assembled single-compartment municipal tunnel and construction method thereof
  • Pre-assembled single-compartment municipal tunnel and construction method thereof
  • Pre-assembled single-compartment municipal tunnel and construction method thereof

Examples

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Effect test

Embodiment 1

[0040] Example 1: Combining Figure 1 to Figure 6Illustrate the prefabricated and assembled single-cabin municipal comprehensive pipe gallery of the present invention (for brevity of description, referred to as comprehensive pipe gallery in the text), this embodiment takes the construction of a comprehensive pipe gallery with a rectangular longitudinal section as an example, and the utilization rate of the comprehensive pipe gallery with a rectangular section Higher, so the application range is wider. It is assembled by a number of prefabricated pipe joints 10 arranged on the concrete cushion 1 and having longitudinal joints. At right angles, the stress concentration is relatively serious. In order to improve the stress conditions, a number of supports 11 with through holes 11a are pre-buried at the four corners of the inner wall edge, and the pipe joint connectors 20 with built-in prestressed steel bars 10 The ax direction of the axis runs through several supports 11 in sequ...

Embodiment 2

[0049] Embodiment 2: Combination Figure 7 to Figure 11 Illustrates that the prefabricated assembled single-chamber municipal comprehensive pipe gallery of the present invention is different from the first embodiment in that, in order to facilitate the manufacture, transportation and installation of the large-section prefabricated pipe section 10, each prefabricated pipe section 10 is composed of two horizontal joints The upper and lower prefabricated sections 10a, 10b are butted and assembled. The above-mentioned transverse joint is a concave-convex structure formed by the mutual engagement of the transverse protrusion and the transverse notch. When the upper and lower prefabricated sections 10a, 10b are butted and assembled, the horizontal The protrusion and the transverse notch can squeeze each other tightly, and through the meshing action of the transverse protrusion and the transverse notch, shear force and axial force can be better transmitted and good waterproof performa...

Embodiment 3

[0053] Example Three: Combining Figure 1 to Figure 6 Illustrate the construction method of the prefabricated single-chamber municipal comprehensive pipe gallery of the present invention. This embodiment takes the construction of the comprehensive pipe gallery described in Embodiment 1 as an example. The specific steps are as follows:

[0054] S101: Carry out structural calculations based on the geological conditions and surrounding environment of the comprehensive utility gallery. The structural calculation includes three aspects, namely load calculation, internal force calculation and section design. Among them, the load calculation mainly considers the static load on the comprehensive utility gallery , live loads, special loads, and accidental loads such as earthquakes; the internal force calculation is mainly to select a reasonable calculation diagram, preliminarily assume the size of the section, and calculate the structure's anti-floating and design bending moment, shear ...

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Abstract

The invention discloses a pre-assembled single-compartment municipal tunnel and a construction method thereof, relates to the technical field of pre-assembled municipal spatial structure and construction and solves the problem that a cast-in-place structure of an existing tunnel is long in construction period and quality is hard to control. The pre-assembled single-compartment municipal tunnel is assembled by several pre-assembled pipe joints arranged on a concrete cushion layer and provided with longitudinal joints in sequence via butt joint, a plurality of supports with through holes are embedded in the corner of the edge of the inner wall of each pre-assembled pipe joint, pipe joint connectors with pre-stressed rebars inside sequentially penetrate the supports of the pre-assembled pipe joints along the axis, and two ends of the pipe joint connectors are anchored on the supports on the outer side respectively. The construction method includes structurally calculating according to the geological conditions and the surroundings of the tunnel; preassembling pipe joints, excavating a foundation pit of the tunnel, casting the concrete cushion layer in the foundation pit in place, sequentially docking the pre-assembled pipe joints above the concrete cushion layer via the longitudinal joints, and filling the soil back to the foundation pit.

Description

technical field [0001] The invention belongs to the technical field of prefabricated and assembled municipal space structures and construction, and in particular relates to a prefabricated and assembled single-chamber municipal comprehensive pipe gallery and a construction method thereof. Background technique [0002] With the growth of population and the development of economy in our country, it is accompanied by the planning and layout of various municipal pipelines. The number of various water supply, drainage, electricity, communication and other pipelines is increasing. Due to the lack of unified coordination and planning , The phenomenon of ground excavation and filling often occurs, which seriously affects the daily life of residents and the orderly operation of the city. The emergence of the municipal comprehensive pipe gallery has solved the above-mentioned problems that have plagued the government and citizens for many years. It can implement unified planning, desi...

Claims

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Application Information

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IPC IPC(8): E02D29/045E02D29/16
Inventor 杨剑王恒栋
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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