CN106906845A - Transverse joint precast assembly pipe gallery and construction method - Google Patents

Abstract

The invention relates to a prefabricated and assembled comprehensive pipe gallery with horizontal joints and a construction method, which includes an inverted U-shaped upper cover and a U-shaped base. The inverted U-shaped upper cover is composed of an upper plate and vertical plates A symmetrically arranged on both sides of the upper plate. The lower end surface of the plate A is evenly distributed along the length direction with a number of longitudinal ribs at intervals, the outer side of the lower end surface of the vertical plate A is provided with a groove A, the lower plate of the U-shaped base is composed of the vertical plate B symmetrically arranged on both sides of the upper plate, and the vertical plate A number of bellows sleeves for accommodating longitudinal ribs are evenly distributed along the length direction in B, grooves B are arranged on the outside of the lower end surface of vertical plate B, and grouting holes communicating with the bellows sleeves are reserved on the inner surface of vertical plate A. There is a water-swellable rubber strip in the groove B. The invention is simple in assembly, less in workload, low in transportation and installation costs, high in construction efficiency, meets the requirements of light and fast construction, and at the same time has good integrity and stability sex.

Description

Horizontal joint prefabricated integrated pipe gallery and its construction method

technical field

The invention relates to a prefabricated and assembled comprehensive pipe gallery with horizontal joints and a construction method.

Background technique

The comprehensive pipe gallery is a tunnel-like underground space structure that collects various municipal, electric power, communication, gas and other pipelines under the urban underground construction. The comprehensive pipe gallery is currently the most advanced form of infrastructure pipe network layout in the world. The trend and trend of construction and urban development is an effective means to make full use of underground space. The comprehensive pipe gallery is an intensive and sustainable underground pipeline laying method. On the one hand, it facilitates the maintenance and renewal of pipelines, avoids repeated excavation of urban roads and various problems caused by it, and on the other hand, it also The service life of the pipeline is improved, and the durability problems caused by the erosion of various chemical components in the soil are avoided. Compared with the prefabricated integrated pipe gallery with prefabricated cast-in-place construction, the prefabricated integrated pipe gallery has more significant advantages such as quality assurance, shortened construction period, cost reduction, energy saving and environmental protection, etc., and should be the preferred construction method for the construction of underground comprehensive pipe gallery.

However, due to the relatively large size of the comprehensive pipe gallery, the integral prefabricated pipe gallery is often very heavy, which brings a lot of inconvenience to factory prefabrication, transportation, and on-site hoisting; The components are prefabricated separately and assembled at the end, which will lead to problems such as unstable structure after assembly, poor integrity, poor force transmission effect, and poor waterproof performance; while the design of the general horizontal joint prefabricated integrated pipe gallery is relatively complicated, and the on-site assembly is complicated. The workload is heavy and the construction efficiency is low.

Contents of the invention

The object of the present invention is to provide a prefabricated and assembled comprehensive pipe gallery with horizontal joints and a construction method for the above deficiencies.

The solution adopted by the present invention to solve the technical problem is that a horizontal joint prefabricated integrated pipe gallery includes an inverted U-shaped upper cover and a U-shaped base, and the inverted U-shaped upper cover is symmetrically arranged on both sides of the upper plate by the upper plate and The vertical plate A is composed of the vertical plate A, the lower end surface of the vertical plate A is uniformly distributed along the length direction with a number of longitudinal ribs, the outer side of the lower end surface of the vertical plate A is provided with a groove A, and the lower plate of the U-shaped base and the upper plate are arranged symmetrically. It is composed of a vertical plate B on the side of the vertical plate B, and a number of bellows sleeves for accommodating longitudinal ribs are uniformly distributed along the length direction in the vertical plate B. The grouting hole communicated with the bellows sleeve, the groove B is provided with a water-swellable rubber strip to improve the waterproof performance of the joint.

Further, the height of the water-swellable rubber strip matches the sum of the groove depths of groove A and groove B, and the upper side of the water-swellable rubber strip abuts against the groove after the inverted U-shaped upper cover and U-shaped base are assembled. A's bottom.

Further, after the inverted U-shaped upper cover and the U-shaped base are assembled, the longitudinal ribs are inserted into the bellows sleeve, and the longitudinal ribs and the bellows sleeve are connected by grouting.

Further, the water-swellable rubber strip is made of natural rubber or synthetic rubber.

A construction method for a prefabricated and assembled comprehensive pipe gallery with transverse joints, comprising the following steps:

(1) In the concrete prefabricated component factory, the inverted U-shaped upper cover and U-shaped base with the embedded parts required for pipeline installation are completed, and transported to the construction site with appropriate transportation equipment;

(2) Install water-swellable rubber in the groove B on the U-shaped base;

(3) Hoist the U-shaped base with the water-swellable rubber strip installed to the designated position;

(4) Lift the inverted U-shaped upper cover to the top of the U-shaped base for assembly into a comprehensive pipe gallery section unit, and fix the position;

(5) Perform high-pressure grouting on the grouting hole on the U-shaped base of the integrated pipe gallery section unit, and properly seal the grouting hole after the grouting is completed;

(6) After the grout has solidified and hardened, the assembling work of the adjacent comprehensive pipe gallery section units can be carried out.

In this embodiment, the cross-sectional shape and size of the inverted U-shaped upper cover and U-shaped base are determined according to the actual conditions of each project, and the size and length of the inverted U-shaped upper cover and U-shaped base are determined according to the site conditions, transportation and hoisting equipment The technical parameters are determined, and the quality control of the inverted U-shaped upper cover and U-shaped base is carried out in accordance with the current quality control regulations for prefabricated components.

In this embodiment, after the inverted U-shaped upper cover and U-shaped base are assembled, unified high-pressure grouting is performed, and the construction is quick and convenient.

Compared with the prior art, the present invention has the following beneficial effects: simple structure, reasonable design, simple assembly, less workload, low transportation and installation costs, high construction efficiency, meeting the requirements of lightweight and rapid construction, and at the same time has Good integrity and stability.

Description of drawings

Below in conjunction with accompanying drawing, the patent of the present invention is further described.

Figure 1 is a schematic diagram of the structure of the integrated pipe gallery;

Fig. 2 is a schematic structural diagram of a U-shaped base;

Fig. 3 is a structural schematic diagram of an inverted U-shaped upper cover.

In the picture:

1-water-swellable rubber strip; 2-bellows sleeve; 3-grouting hole; 4-groove B; 5-longitudinal rib; 6-groove A; base.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1-3, a prefabricated and assembled comprehensive pipe gallery with horizontal joints includes an inverted U-shaped upper cover and a U-shaped base. The inverted U-shaped upper cover consists of an upper plate and vertical plates symmetrically arranged on both sides of the upper plate Composed of A, the lower end surface of the vertical plate A is evenly distributed along the length direction with a number of longitudinal ribs at intervals, the outer side of the lower end surface of the vertical plate A is provided with a groove A, the lower plate of the U-shaped base and the vertical ribs symmetrically arranged on both sides of the upper plate The vertical plate B is composed of a number of bellows sleeves evenly distributed along the length direction to accommodate the longitudinal ribs, the outer side of the lower end of the vertical plate B is provided with grooves B, and the inner surface of the vertical plate A is reserved with bellows sleeves. A grouting hole communicated with the sleeve, and a water-swellable rubber strip is arranged in the groove B.

In this embodiment, the height of the water-swellable rubber strip matches the sum of the groove depths of groove A and groove B. After the inverted U-shaped upper cover and U-shaped base are assembled, the upper side of the water-swellable rubber strip abuts against By the groove bottom of groove A.

In this embodiment, after the inverted U-shaped upper cover and the U-shaped base are assembled, the longitudinal ribs are inserted into the bellows sleeve, and the longitudinal ribs are connected to the bellows sleeve by grouting.

In this embodiment, the water-swellable rubber strip is made of natural rubber or synthetic rubber.

A construction method for a prefabricated and assembled comprehensive pipe gallery with transverse joints, comprising the following steps:

(1) In the concrete prefabricated component factory, the inverted U-shaped upper cover and U-shaped base with the embedded parts required for pipeline installation are completed, and transported to the construction site with appropriate transportation equipment;

(2) Install water-swellable rubber in the groove B on the U-shaped base;

(3) Hoist the U-shaped base with the water-swellable rubber strip installed to the designated position;

(4) Lift the inverted U-shaped upper cover to the top of the U-shaped base for assembly into a comprehensive pipe gallery section unit, and fix the position;

(5) Perform high-pressure grouting on the grouting hole on the U-shaped base of the integrated pipe gallery section unit, and properly seal the grouting hole after the grouting is completed;

(6) After the grout has solidified and hardened, the assembling work of the adjacent comprehensive pipe gallery section units can be carried out.

The above-listed preferred embodiments have further described the purpose, technical solutions and advantages of the present invention in detail. It should be understood that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included within the protection scope of the present invention.

Claims (5)

1. A comprehensive pipe gallery prefabricated with horizontal joints, characterized in that it includes an inverted U-shaped upper cover and a U-shaped base, and the inverted U-shaped upper cover is composed of an upper plate and vertical plates A symmetrically arranged on both sides of the upper plate , the lower end surface of the vertical plate A is evenly distributed along the length direction with a number of longitudinal ribs at intervals, the outer side of the lower end surface of the vertical plate A is provided with a groove A, the lower plate of the U-shaped base and the vertical plate B symmetrically arranged on both sides of the upper plate It consists of a number of bellows sleeves accommodating longitudinal ribs evenly distributed along the length direction in the vertical plate B, a groove B is provided on the outer side of the lower end of the vertical plate B, and a bellows sleeve is reserved on the inner surface of the vertical plate A. A connected grouting hole, the groove B is provided with a water-swellable rubber strip. 2. The horizontal joint prefabricated integrated pipe gallery according to claim 1, characterized in that: the height of the water-swellable rubber strip matches the sum of the groove depths of groove A and groove B, and the inverted U-shaped upper After the cover and the U-shaped base are assembled, the upper side of the water-swellable rubber strip abuts against the groove bottom of the groove A. 3. The comprehensive pipe gallery prefabricated and assembled with horizontal joints according to claim 2, characterized in that: after the inverted U-shaped upper cover and U-shaped base are assembled, the longitudinal ribs are inserted in the bellows sleeve, and the longitudinal ribs and corrugated Grouting connections between pipe sleeves. 4. The horizontal joint prefabricated integrated pipe gallery according to claim 3, characterized in that: the water-swellable rubber strip is made of natural rubber or synthetic rubber. 5. A construction method for a prefabricated and assembled comprehensive pipe gallery with transverse joints, using the prefabricated and assembled comprehensive pipe gallery with transverse joints as claimed in claim 3, characterized in that it comprises the following steps: (1) In the concrete prefabricated component factory, the inverted U-shaped upper cover and U-shaped base with the embedded parts required for pipeline installation are completed, and transported to the construction site with appropriate transportation equipment; (2) Install water-swellable rubber in the groove B on the U-shaped base; (3) Hoist the U-shaped base with the water-swellable rubber strip installed to the designated position; (4) Lift the inverted U-shaped upper cover to the top of the U-shaped base for assembly into a comprehensive pipe gallery section unit, and fix the position; (5) Perform high-pressure grouting on the grouting hole on the U-shaped base of the integrated pipe gallery section unit, and properly seal the grouting hole after the grouting is completed; (6) After the grout has solidified and hardened, the assembling work of the adjacent comprehensive pipe gallery section units can be carried out.