阅读说明：本技术 一种装配整体式综合管廊 (Integrated comprehensive pipe gallery ) 是由 黄剑 王恒栋 王建 于 2020-04-26 设计创作，主要内容包括：本发明涉及一种装配整体式综合管廊,其特征在于所述综合管廊由预制构件、预制板和现浇混凝土构成。根据预制构件的不同组合方式可形成各类综合管廊标准断面,满足多种断面要求。以预制构件为综合管廊外壁板和内壁板,定位预制构件位置,划分好各舱室的大小,各舱室预制构件顶部搁置预制板。分别施工底板现浇段和顶板现浇段,形成综合管廊整体结构。本发明的综合管廊在施工过程中无需模板,以预制构件或预制板作为模板,实现工厂模块化加工构件,施工现场分块吊装就位,可显著降低吊装起重荷载。在局部采用混凝土现场浇筑,可实现快速施工。(The invention relates to an assembled integral comprehensive pipe gallery which is characterized by comprising prefabricated components, prefabricated plates and cast-in-place concrete. Various standard sections of the comprehensive pipe gallery can be formed according to different combination modes of the prefabricated parts, and various section requirements are met. And (3) taking the prefabricated components as an outer wall plate and an inner wall plate of the comprehensive pipe gallery, positioning the prefabricated components, dividing the sizes of all cabins, and placing prefabricated plates on the tops of the prefabricated components of all cabins. And constructing a bottom plate cast-in-place section and a top plate cast-in-place section respectively to form an integral structure of the comprehensive pipe gallery. The comprehensive pipe gallery disclosed by the invention does not need a template in the construction process, and the prefabricated members or prefabricated plates are used as the templates, so that factory modularized machining of the members is realized, and the hoisting load can be obviously reduced by hoisting the members in place in a block manner on the construction site. And the concrete is locally poured in situ, so that the rapid construction can be realized.)

1. The utility model provides an assemble integral utility tunnel, its characterized in that assemble integral utility tunnel includes the wallboard prefab, the wallboard prefab includes outer wallboard prefab and interior wallboard prefabricated component, the outer wallboard prefab is L shape, includes outer wallboard and the inboard bottom extension section that is located outer wallboard, and outer wallboard top inboard is equipped with top axillary angle, and the bottom inboard is established bottom axillary angle, interior wallboard prefab is the type of falling T, includes inner wallboard and the bottom extension section that is located inner wallboard both sides, and inner wallboard top both sides divide establishes top axillary angle, and bottom both sides divide establishes bottom axillary angle, between outer wallboard extension section and the adjacent inner wallboard extension section, and set up the cast-in-place section of bottom plate between the adjacent inner wallboard extension section, prefabricated superimposed sheet shelves on the top axillary angle of outer wallboard and inner wallboard to be connected prefabricated sheet atress reinforcing bar and the overhanging reinforcing bar of outer wallboard prefab and outer wallboard prefab, and pouring top plate concrete above the prefabricated composite slab.

2. The assembled integral utility tunnel of claim 1, wherein: and pouring a 100-200mm thick C20 plain concrete cushion layer at the bottom of the assembled integral comprehensive pipe gallery.

3. The assembled integral utility tunnel of claim 1, wherein: and a hanging ring is embedded in the top of the prefabricated part and used for hoisting by a crane.

4. The assembled integral utility tunnel of claim 1, wherein: the bottom plate cast-in-place section is fixed with stressed steel bars and constructional steel bars and is connected with the overhanging steel bars of the prefabricated parts of the two side wall plates.

5. The assembled integral utility tunnel of claim 1, wherein: the longitudinal stressed steel bars of the prefabricated laminated slab are square frames, the inner sides of the square frames are respectively fixed with upper rows of transverse stressed steel bars and lower rows of transverse stressed steel bars, the lower parts of the square frames are provided with concrete, so that the concrete wraps the lower parts of the longitudinal stressed steel bars and the lower rows of transverse stressed steel bars in the concrete, the upper parts of the longitudinal stressed steel bars and the upper rows of transverse stressed steel bars are exposed, the prefabricated laminated slab is placed above the axillary corners of the outer wall plate prefabricated member and the inner wall plate prefabricated member, the exposed longitudinal stressed steel bars of the prefabricated laminated slab are connected with the overhanging steel bars of the outer wall plate prefabricated member and the inner wall plate prefabricated member on two sides, and the top plate concrete is poured.

6. The assembled integral utility tunnel of claim 1, wherein: the assembly integral section and the cast-in-place section are arranged at intervals along the longitudinal direction of the comprehensive pipe gallery, and the cast-in-place section is provided with stressed reinforcing steel bars and construction reinforcing steel bars and connected with the reinforcing steel bars extending out of the assembly integral sections on the two sides.

7. A construction method for assembling an integral comprehensive pipe gallery is characterized by comprising the following steps:

(1) prefabricating an outer wall plate prefabricated member, an inner wall plate prefabricated member and a laminated plate in a factory;

(2) after the foundation pit on site is excavated to the designed elevation, pouring a plain concrete cushion layer, wherein the cushion layer meets the requirement of flatness;

(3) hoisting the outer wall plate prefabricated member and the inner wall plate prefabricated member in place to form a basic frame of the pipe gallery;

(4) installing and fixing bottom plate steel bars, and pouring bottom plate concrete after the steel bars are fixed and connected;

(5) hoisting the prefabricated composite slab, placing the prefabricated composite slab on the axillary corners at the top of the prefabricated member, connecting the stressed steel bars of the prefabricated composite slab with the overhanging steel bars of the prefabricated member, pouring top plate concrete after the steel bars are connected, and forming the top plate of the comprehensive pipe gallery into a whole;

(6) after the two adjacent integrated sections form the comprehensive pipe gallery body, carrying out cast-in-place section construction between the longitudinally adjacent integrated sections of the comprehensive pipe gallery, configuring stress reinforcing steel bars and construction reinforcing steel bars at the cast-in-place section, connecting the stress reinforcing steel bars and the construction reinforcing steel bars with the reinforcing steel bars extending out of the integrated sections at two sides, installing cast-in-place section templates, and pouring concrete;

(7) after the integral section is assembled to form a gallery body, locally backfilling the foundation pit when the design strength is reached;

(8) and repeating the steps to finish the engineering construction of the comprehensive pipe gallery.

Technical Field

The invention relates to the technical field of urban underground comprehensive pipe galleries, in particular to an assembled integral comprehensive pipe gallery.

Background

Utility tunnel has the security of guarantee municipal pipeline, improves underground space utilization, beautifies urban environment, avoids advantages such as repeated excavation in road surface, is the needs of novel urbanization development. In recent years, China has developed a construction hot tide of comprehensive pipe gallery projects, and the construction scale of the comprehensive pipe gallery in China is expected to exceed 8000km in 2020. The comprehensive pipe gallery has the characteristic of high standardization degree, and is particularly suitable for adopting a design method and a construction process of prefabricated assembly. The prefabricated assembly is used as a novel, green and environment-friendly construction technology, is widely applied to the field of building engineering, and has rich research achievements and mature construction process. By 2025, the proportion of the assembled building in the newly built building in China can reach 30%. Compared with the building engineering, the research of China on the aspect of the comprehensive pipe gallery prefabrication and assembly technology is just started. The prefabricated assembly comprehensive pipe gallery has the advantages of short construction period, good field operation environment, high structure quality and the like, and simultaneously meets the requirements of energy conservation and emission reduction. Prefabrication and assembly techniques are gaining more attention in the utility tunnel field.

The prefabricated assembly comprehensive pipe gallery is divided into an integral assembly type and a segment assembly type. The assembled integral comprehensive pipe gallery has the advantages of cast-in-place and prefabricated construction processes, and becomes a hot spot technology of the current comprehensive pipe gallery construction process. However, the construction technology of the assembly integral type comprehensive pipe gallery commonly adopted at present usually takes 'double-skin walls' as basic structural units, the pouring amount of concrete is large in site construction, and a large number of supports are required to be adopted for supporting and fixing so as to form the whole body of the comprehensive pipe gallery. Compared with the segment assembling technology, the field workload of the whole assembling technology is obviously increased. Therefore, it is necessary to design an integral utility tunnel structure of assembly, satisfies the sectional requirement of most pipe racks simultaneously and the requirement of quick, convenient construction, serves the engineering construction of the utility tunnel of china.

Disclosure of Invention

The invention aims to provide a comprehensive pipe gallery form with the advantages of cast-in-place and prefabrication construction processes, which can be widely applied to various comprehensive pipe gallery section forms and has the characteristics of rapidness and convenience in construction. The finished product has good engineering quality, and has good structural integrity and waterproofness.

In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides an assemble integral utility tunnel, its characterized in that assemble integral utility tunnel includes the wallboard prefab, the wallboard prefab includes outer wallboard prefab and interior wallboard prefabricated component, the outer wallboard prefab is L shape, includes outer wallboard and the inboard bottom extension section that is located outer wallboard, and outer wallboard top inboard is equipped with top axillary angle, and the bottom inboard is established bottom axillary angle, interior wallboard prefab is the type of falling T, includes inner wallboard and the bottom extension section that is located inner wallboard both sides, and inner wallboard top both sides divide establishes top axillary angle, and bottom both sides divide establishes bottom axillary angle, between outer wallboard extension section and the adjacent inner wallboard extension section, and set up the cast-in-place section of bottom plate between the adjacent inner wallboard extension section, prefabricated superimposed sheet shelves on the top axillary angle of outer wallboard and inner wallboard to be connected prefabricated sheet atress reinforcing bar and the overhanging reinforcing bar of outer wallboard prefab and outer wallboard prefab, and pouring top plate concrete above the prefabricated composite slab.

Further, a C20 plain concrete cushion layer with the thickness of 100-200mm is poured at the bottom of the assembly integral type comprehensive pipe gallery.

And furthermore, hanging rings are embedded in the tops of the prefabricated members of the wall plates and used for hoisting by a crane.

Furthermore, the bottom plate cast-in-place section is fixed with stressed steel bars and constructional steel bars and is connected with the overhanging steel bars of the prefabricated members of the two side wall plates.

Furthermore, the longitudinal stress steel bars of the prefabricated laminated slab are square frames, the inner sides of the square frames are respectively fixed with upper rows of transverse stress steel bars and lower rows of transverse stress steel bars, the lower parts of the square frames are provided with concrete, so that the lower parts and the lower rows of transverse stress steel bars of the longitudinal stress steel bars are wrapped in the concrete by the concrete, the upper parts and the upper rows of transverse stress steel bars of the longitudinal stress steel bars are exposed, the prefabricated laminated slab is placed above the axillary corners of the outer wall plate prefabricated member and the inner wall plate prefabricated member, the exposed longitudinal stress steel bars of the prefabricated laminated slab are connected with the overhanging steel bars of the outer wall plate prefabricated member and the inner wall plate prefabricated member on two sides, and the top plate concrete is poured.

The invention also aims to provide a construction method for assembling the integral comprehensive pipe gallery, which is quick and convenient and greatly reduces the field construction workload.

In order to achieve the purpose, the technical scheme of the invention is as follows: a construction method for assembling an integral comprehensive pipe gallery is characterized by comprising the following steps:

(1) prefabricating an outer wall plate prefabricated member, an inner wall plate prefabricated member and a laminated plate in a factory;

(2) after the foundation pit on site is excavated to the designed elevation, pouring a plain concrete cushion layer, wherein the cushion layer meets the requirement of flatness;

(3) hoisting the outer wall plate prefabricated member and the inner wall plate prefabricated member in place to form a basic frame of the pipe gallery;

(4) installing and fixing bottom plate steel bars, and pouring bottom plate concrete after the steel bars are fixed and connected;

(5) hoisting the prefabricated composite slab, placing the prefabricated composite slab on the axillary corners at the top of the prefabricated member, connecting the stressed steel bars of the prefabricated composite slab with the overhanging steel bars of the prefabricated member, pouring top plate concrete after the steel bars are connected, and forming the top plate of the comprehensive pipe gallery into a whole;

(6) after the two adjacent integrated sections form the comprehensive pipe gallery body, carrying out cast-in-place section construction between the longitudinally adjacent integrated sections of the comprehensive pipe gallery, configuring stress reinforcing steel bars and construction reinforcing steel bars at the cast-in-place section, connecting the stress reinforcing steel bars and the construction reinforcing steel bars with the reinforcing steel bars extending out of the integrated sections at two sides, installing cast-in-place section templates, and pouring concrete;

(7) after the integral section is assembled to form a gallery body, locally backfilling the foundation pit when the design strength is reached;

(8) and repeating the steps to finish the engineering construction of the comprehensive pipe gallery.

It is worth explaining that all the assembly whole sections can be constructed simultaneously, foundation pit backfilling is completed in time, and the construction period is shortened.

The comprehensive pipe gallery disclosed by the invention takes prefabricated components A1, A2 and B and prefabricated composite slabs as basic constituent parts, and is combined with construction of a local cast-in-place section to form the whole body of the comprehensive pipe gallery. Longitudinally adjacent assembled integral sections are connected by a cast-in-place section. The comprehensive pipe gallery disclosed by the invention does not need a template in the construction process, and the prefabricated members or prefabricated plates are used as the templates, so that factory modularized machining of the members is realized, and the hoisting load can be obviously reduced by hoisting the members in place in a block manner on the construction site. The concrete is locally poured in situ, so that the rapid construction can be realized, and a support does not need to be erected in the construction process. The invention has the advantages of both the prefabricated assembly and cast-in-place construction process, can realize the modular production of the comprehensive pipe gallery, can be quickly constructed on site, ensures the construction quality of the structure of the comprehensive pipe gallery, meets better structural integrity and waterproof performance, and avoids the problems commonly existing in the traditional prefabricated comprehensive pipe gallery.

Drawings

Fig. 1 is a schematic view of a standard section of an assembled integrated comprehensive pipe gallery in the invention.

FIG. 2 is a schematic cross-sectional view of a first fascia preform A1 according to the present invention.

Fig. 3 is a schematic cross-sectional view of a second fascia preform a2 according to the invention.

FIG. 4 is a schematic cross-sectional view of an inner panel preform B according to the present invention.

FIG. 5 is a schematic cross-sectional view of a prefabricated composite panel according to the present invention.

FIG. 6 is a schematic sectional view taken along line A-A of the present invention.

Figure 7 is a top view of a utility tunnel according to the present invention.

The figure includes: the prefabricated concrete structure comprises a first outer wall plate prefabricated member A1, a second outer wall plate prefabricated member A2, an inner wall plate prefabricated member B, a plain concrete cushion layer 1, a bottom plate cast-in-place part 2, a prefabricated laminated slab 3, a top plate cast-in-place part 4, a hanging ring 5, prefabricated member longitudinal stress steel bars 6, prefabricated member transverse stress steel bars 7, concrete 8 and axillary corners 9.

Detailed Description

The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate an understanding of those skilled in the art.

The invention relates to an assembled integral comprehensive pipe gallery with rapid construction and excellent overall performance, which consists of a prefabricated component and a cast-in-place part, and mainly comprises a first outer wall plate prefabricated component A1, a second outer wall plate prefabricated component A2, an inner wall plate prefabricated component B, a prefabricated laminated slab, a bottom plate cast-in-place part 2, a top plate cast-in-place part 4, a hanging ring 5, cast-in-place part reinforcing steel bars and component overhanging connecting reinforcing steel bars. The method is characterized in that: various standard sections of the comprehensive pipe gallery can be formed according to different combination modes of the prefabricated parts, and various section requirements are met. And (3) taking the prefabricated components as an outer wall plate and an inner wall plate of the comprehensive pipe gallery, positioning the prefabricated components, dividing the sizes of all cabins, and placing prefabricated plates on the tops of the prefabricated components of all cabins. And constructing a bottom plate cast-in-place section and a top plate cast-in-place section respectively to form an integral structure of the comprehensive pipe gallery.

After the foundation pit is excavated to the designed elevation, the C20 plain concrete cushion layer with the thickness of 100 plus 200mm is poured, and the requirements on strength and flatness are met. And after the prefabricated parts are hoisted in place, placing the prefabricated composite slab on the tops of the prefabricated parts. The first outer wall plate prefabricated member A1 and the second outer wall plate prefabricated member A2 are L-shaped components serving as outer wall plates of the comprehensive pipe gallery, and comprise outer wall plates and bottom extension sections located on one sides of the outer wall plates; interior wallboard prefab B is for falling T type component as utility tunnel interior wallboard, including interior wallboard and the bottom extension section that is located interior wallboard both sides. The prefabricated member is of a reinforced concrete structure, and reinforcing steel bars extend out of the top and the bottom and are connected with the reinforcing steel bars of the cast-in-place section. The bottom and the top of the prefabricated member of the inner wall plate and the outer wall plate are both provided with 150mm axillary angles. Rings are embedded in the tops of the inner wall plate and the outer wall plate. The longitudinal length of the inner and outer wall panels is 6 m.

The longitudinal stress steel bars of the prefabricated laminated slab are square frames, the inner sides of the square frames are respectively fixed with upper row transverse stress steel bars and lower row transverse stress steel bars, and the lower parts of the square frames are provided with concrete, so that the lower parts of the longitudinal stress steel bars and the lower row transverse stress steel bars are wrapped in the concrete by the concrete, and the upper parts of the longitudinal stress steel bars and the upper row transverse stress steel bars are exposed. The thickness of the prefabricated concrete plate part of the prefabricated composite slab is 100 mm. The length of the prefabricated composite slab is 7 m.

And placing the prefabricated composite slabs above the axillary angles of the outer wall plate prefabricated members and the inner wall plate prefabricated members, connecting the longitudinal stressed steel bars exposed by the prefabricated composite slabs with the overhanging steel bars of the outer wall plate prefabricated members and the inner wall plate prefabricated members on two sides, and pouring the top plate concrete.

The assembly whole section and the cast-in-place section are arranged at intervals along the longitudinal direction of the comprehensive pipe gallery. The length of the assembly whole section is 6m, and the length of the cast-in-place section is 1 m. The cast-in-place section is provided with stressed steel bars and constructional steel bars and is connected with the steel bars extending out of the two side assembling integral sections. The whole assembly section can be constructed simultaneously, and the construction period is shortened. After the whole section is assembled to form the gallery body, the foundation pit can be locally backfilled after the design strength is reached. The cast-in-place section needs to adopt a template to pour concrete.

The specific construction method of the invention is described as follows:

(1) three types of components are prefabricated in a factory: first outer wall panel preform A1, second outer wall panel preform A2 and inner wall panel preform B, and a prefabricated composite slab.

(2) And after the site foundation pit is excavated to the designed elevation, pouring a plain concrete cushion layer, wherein the cushion layer meets the requirement of flatness. (3) The prefabricated elements A1, A2 and B are hoisted in place to form the basic frame of the pipe gallery.

(4) And (5) installing and fixing the reinforcing steel bars of the bottom plate. And after the reinforcing steel bars are fixed and connected, pouring bottom plate concrete.

(5) And hoisting the prefabricated composite slab, placing the prefabricated composite slab on the axilla corner at the top of the prefabricated part, and connecting the stressed steel bars of the prefabricated composite slab with the overhanging steel bars of the prefabricated part. And after the steel bars are connected, pouring the top plate concrete. The utility tunnel roof forms an entirety.

(6) After two adjacent assembled integral sections form the comprehensive pipe gallery body, cast-in-place section construction between the vertical adjacent assembled integral sections of the comprehensive pipe gallery is carried out. The cast-in-place section is provided with stressed steel bars and constructional steel bars and is connected with the steel bars extending out of the two side assembling integral sections. And (5) installing a cast-in-place section template and pouring concrete.

(7) After the whole section is assembled to form the gallery body, the foundation pit can be locally backfilled after the design strength is reached.

(8) And repeating the steps to finish the engineering construction of the comprehensive pipe gallery.

By adopting the structure and the construction method, a large amount of template work amount can be saved in the construction process, the rapid construction is realized, the construction quality is ensured, and the project investment is reduced. And the foundation pit can be backfilled after the cast-in-place part reaches the design strength, so that the foundation pit supporting time is shortened. Because the connecting parts are all made of cast-in-place reinforced concrete, the structure integrity is better, and the waterproof requirement can be met in the region with higher underground water.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.