CN210151784U - Integration template piping lane - Google Patents

Abstract

The utility model discloses an integrated template pipe gallery, which comprises a cushion layer, wherein the top of the cushion layer is provided with a waterproof layer, and the waterproof top is provided with a waterproof protective layer; the top of the cushion layer is provided with a pipe gallery outer wall, a pipe gallery inner wall, a pipe gallery bottom plate and a pipe gallery top plate are arranged in the pipe gallery outer wall, and reinforcing steel bars are arranged between the pipe gallery outer wall and the pipe gallery inner wall, the pipe gallery bottom plate and the pipe gallery top plate; and the steel bars are connected with the high-strength cement-based material template through the rear inserted steel bars. The utility model makes the main structural reinforcement and the template be customized and formed in one step in a factory, and the pipe gallery structure is assembled on site, and the template is poured in one step without being removed; the prefabricated structure of a factory is completed by utilizing the time of excavating earthwork on site, so that the construction period is saved; the surface template is prefabricated in a factory and is more attractive than cast-in-place; the field workers are moved to the factory for operation, so that a better working environment is provided, and the labor protection is facilitated.

Description

Integration template piping lane

Technical Field

The utility model relates to a piping lane specifically is an integration template piping lane belongs to civil engineering technical field.

Background

The urban underground pipeline comprehensive pipe gallery is commonly called a common ditch. The underground box culvert tunnel is arranged under the ground, can accommodate two or more than two public facility pipelines including electric power, telecommunication, water supply, drainage, gas, traffic signals, closed circuit television and the like, and has complete facility functions of drainage, illumination, communication, monitoring and the like. The construction of the urban underground comprehensive pipe gallery can solve the problems of repeated excavation of the road surface, dense overhead wire nets, frequent pipeline accidents and the like, and is favorable for guaranteeing the urban safety, perfecting the urban function and beautifying the urban landscape. The utility model discloses a city underground pipe comprehensive pipe gallery, which is one of the marks of city construction modernization, science and technology ization, intensification, is also a symbol of city underground space full utilization, and is the new trend of city utility pipeline laying synthesis and corridor ization.

There are multiple classification modes in utility tunnel. According to different types of pipelines in the corridor and different service objects (areas), the corridor can be divided into a trunk comprehensive pipe corridor, a branch comprehensive pipe corridor, a cable comprehensive pipe corridor, a trunk and branch mixed comprehensive pipe ditch and the like; according to the different section forms of the comprehensive pipe gallery, the comprehensive pipe gallery can be divided into a rectangular comprehensive pipe gallery, a circular comprehensive pipe gallery and a special-shaped comprehensive pipe gallery; according to the difference of the number of the comprehensive pipe rack cabins, the comprehensive pipe rack can be divided into a single cabin, a double cabin and a plurality of cabins; according to different construction methods of the comprehensive pipe gallery, the construction method can be divided into an open excavation method comprehensive pipe gallery, a shallow buried underground excavation method comprehensive pipe gallery, a shield method comprehensive pipe gallery and a pipe jacking method comprehensive pipe gallery.

In the construction of the comprehensive pipe gallery in China at present, except for the special requirements of adopting a shield method and a pipe jacking method, most of projects are constructed by adopting an open-cut cast-in-place construction method, and the main defects of the construction method are that the construction period is long, the labor requirement is large, the environmental protection pressure of a construction site is large, the safety risk is large, and the like, and the green construction requirement of 'four sections and one section and environmental protection' cannot be met. Main components of the assembled comprehensive pipe gallery are prefabricated in a factory, and a main structure is assembled and formed on the site, so that the site operation can be obviously reduced in the whole construction process, the labor is reduced, the pollution is reduced, and the cost is reduced, thereby achieving the aim of green construction. The existing comprehensive pipe gallery structure system in China is mainly of a reinforced concrete structure, the assembling method can be divided into two types of a full prefabricated assembly type and a partial prefabricated assembly type, the former can be divided into two conditions of a whole-segment prefabricated assembly type and a block prefabricated assembly type, and the latter can be divided into two types of a top plate prefabricated assembly type and a superposed prefabricated assembly type. (1) The segment prefabrication and assembly technology is a technology which divides a comprehensive pipe gallery into a plurality of segments in the length direction, integrally prefabricating and molding each segment in a factory, transporting the segments to a site, and assembling adjacent segments in a certain connection mode to form an integral structure. The Shanghai world expo comprehensive pipe gallery is the first assembled comprehensive pipe gallery in China, is a single-bin rectangular section, is 2m long for each section with the size of 3300 x 3800mm, and is assembled and formed on site after being prefabricated in a factory. (2) The block prefabrication and assembly technology is a construction technology for prefabricating a comprehensive pipe gallery in blocks on a transverse mode and then transporting the comprehensive pipe gallery to a site for assembly. Wherein each precast block component generally does not contain a separate bin. A common blocking mode is that the side wall is disconnected in the middle, and the side wall is divided into an upper part and a lower part, and the blocking mode is very practical for a comprehensive pipe gallery with a higher height. The mode is widely applied in Japan and accumulates abundant engineering experience, and the result shows that the block assembling type comprehensive pipe gallery can greatly reduce the transportation and hoisting difficulty and cost. The water rubber belt is used for preventing water of the joint. The size of a single component can be reduced by block prefabrication and assembly so as to be convenient to transport and install, so that the block prefabrication and assembly method is more suitable for the condition of large fracture, and the production and construction cost of the whole-section prefabrication and assembly for the condition of large fracture is increased sharply; however, the block prefabrication installation greatly increases the number of connecting joints because the size of a single block is reduced, and higher requirements are put forward for the prefabrication precision of parts and the quality control of construction installation. The construction method is also rarely applied to the construction of domestic comprehensive pipe galleries. (3) The top plate prefabrication and assembly process is a novel process which is researched and proposed by combining the advantages of a cast-in-place process and the advantages of a prefabrication process, and the process principle is that the construction of a main body structure of a comprehensive pipe gallery is carried out by adopting a cast-in-place mode for a bottom plate and a side wall of the pipe gallery and adopting a prefabrication and installation mode for a top plate. The technology has the greatest advantage that the top plate is constructed by adopting a prefabricated assembly construction method, so that the installation of a top plate template and the assembly and disassembly of a scaffold in a cast-in-place construction method can be avoided; under the conditions that the whole technology of the existing segment prefabrication and assembly method is not mature and the construction difficulty is high, the method is a compromise method.

Although the full-prefabricated assembly technology has great advantages compared with a cast-in-place mode, the full-prefabricated assembly technology has some defects:

a. and a vibrating process of attaching a variable frequency vibrator to a die is adopted. The effect completely meets the requirement of prefabrication specification, but the effect of the inner surface of the bottom plate is not good, and the slurry overflow holes are limited after the bottom plate is full of the material, and redundant air cannot completely overflow from the inner surface of the bottom die, so that the inner surface of the bottom plate has the phenomena of pitted surfaces, pits, water grooves and the like, and the artificial secondary repair is needed.

b. The interface is in the form of a tongue-and-groove socket joint, and a water-swelling adhesive tape is stuck on the inner end surface of the socket.

c. The connection mode adopts a steel strand tensioning mode.

d. The length of each section is less than 2m, the width of each section is not more than 3 cabins, and the existing section prefabricated type comprehensive pipe gallery is large in size, difficult to transport and not suitable for a comprehensive pipe gallery with a multi-cabin design; the prefabricated utility tunnel of piecemeal seam is many, and atress and waterproof performance are bad, and cast-in-place formula utility tunnel quality is difficult to control, the material is many, great to the environmental impact. The comparison patent: 1. "assembled piping lane sandwich wallboard and assembled piping lane" 201721309721.6, the inside and outside two parts of prefabricated wall body contain the reinforcing bar, and the central concrete is assembled and pour in situ, and its structural method has the influence to reinforced concrete's whole atress performance, and the reinforcing bar is difficult for the overlap joint, and the joint part of two boards needs to prop up the template. 2. "single cabin piping lane and piece together cabin formula many cabins utility tunnel" 201810241963.9 adopts the corrugated steel to assemble the piping lane, and the steel piping lane is less numerous at present, lacks the advantage than the concrete piping lane in convenient to use, durability and refractiveness. 3. The 'assembled underground pipe gallery and the construction method thereof' 201810939403.0 mainly adopts a process similar to a reverse construction method to construct the underground pipe gallery, and has high construction cost and more large-scale equipment for construction. 4. "fabricated underground pipe gallery" 201811460573.7; the Korean great force far building industry limited company has a 'fabricated pipe gallery' 201721892861.0; become city third building engineering company utility model "a plurality of patents such as" a prefabricated utility tunnel stagnant water structure and piping lane "201711341329.4 all are prefabricated with the piping lane structure to splice into wholly at the scene through different segmentation modes and scene mode of assembling. The parts are heavy, the transportation and hoisting difficulty is high, and the field assembly is not enough in the aspect of water resistance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an integration template piping lane in order to solve above-mentioned problem.

The utility model realizes the purpose through the following technical scheme, and the integrated template pipe gallery comprises a cushion layer, wherein the top of the cushion layer is provided with a waterproof layer, and the waterproof top is provided with a waterproof protective layer; the top of the cushion layer is provided with a pipe gallery outer wall, a pipe gallery inner wall, a pipe gallery bottom plate and a pipe gallery top plate are arranged in the pipe gallery outer wall, and reinforcing steel bars are arranged between the pipe gallery outer wall and the pipe gallery inner wall, the pipe gallery bottom plate and the pipe gallery top plate; and the steel bars are connected with the high-strength cement-based material template through the rear inserted steel bars.

Preferably, be connected between piping lane inner wall, piping lane bottom plate and the piping lane roof for "mouth" font is whole.

Preferably, the welding between piping lane interior wall, piping lane bottom plate and the piping lane roof.

The utility model has the advantages that: the utility model makes the main structural reinforcement and the template be customized and formed in one step in a factory, and the pipe gallery structure is assembled on site, and the template is poured in one step without being removed; the prefabricated structure of a factory is completed by utilizing the time of excavating earthwork on site, so that the construction period is saved; the surface template is prefabricated in a factory and is more attractive than cast-in-place; the field workers are moved to the factory for operation, so that a better working environment is provided, and the labor protection is facilitated.

Drawings

Fig. 1 is a structural view of a pipe gallery of the present invention;

FIG. 2 is a diagram of the bottom plate steel bar mold combined plate of the present invention;

fig. 3 is a combined view of the top plate steel bar formwork of the present invention;

FIG. 4 is a combined view of the external wall reinforcing steel bar formwork of the present invention;

fig. 5 is the utility model discloses an interior wall steel bar formwork assembled drawing.

In the figure: 1. a cushion layer; 2. waterproofing; 3. a waterproof protective layer; 4. a pipe gallery outer wall; 5. the inner wall of the pipe gallery; 6. a pipe gallery floor; 7. a pipe gallery top plate; 8. reinforcing steel bars; 9. a high-strength cement-based material template; 10. and inserting the steel bars.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, an integrated template pipe gallery comprises a cushion layer 1, wherein a waterproof layer 2 is arranged on the top of the cushion layer 1, and a waterproof protective layer 3 is arranged on the top of the waterproof layer 2; the top of the cushion layer 1 is provided with a pipe gallery outer wall 4, a pipe gallery inner wall 5, a pipe gallery bottom plate 6 and a pipe gallery top plate 7 are arranged inside the pipe gallery outer wall 4, and reinforcing steel bars 8 are arranged between the pipe gallery outer wall 4 and the pipe gallery inner wall 5, the pipe gallery bottom plate 6 and the pipe gallery top plate 7; and the steel bars 8 are connected with the high-strength cement-based material template 9 through the rear inserted steel bars 10.

As a technical optimization scheme of the utility model, it is whole to connect for "mouth" font between piping lane interior wall 5, piping lane bottom plate 6 and the piping lane roof 7.

As a technical optimization scheme of the utility model, weld between piping lane interior wall 5, piping lane bottom plate 6 and the piping lane roof 7.

A construction method of an integrated template pipe gallery comprises the following steps:

step A, preparing a template material, wherein 1000 kg-1300 kg of P.042.5 cement, 100 kg-150 kg of silica fume and 900 kg-1200 kg of fine medium sand are adopted per cubic meter according to performance requirements, fibers, additives and proper amount of water are properly added, and the slump is 240mm to meet the pouring requirement; the concrete has high strength and anti-bending performance, and does not disintegrate in the concrete pouring process;

b, splitting the pipe gallery component;

step C, binding the steel bars 8;

d, mounting the bound reinforcement cage on a platform, and manufacturing a template 9;

e, maintaining and transporting the template and steel bar integrated component;

and F, field construction and forming.

As a technical optimization scheme of the present invention, the specific operation method of step C: according to the design drawing reinforcing bar, disassemble the piecemeal, disassemble the principle and become the piece respectively according to roof, bottom plate, side wall, can take 2m ~ 10m along piping lane length direction length, specifically confirm according to the size and the transport vechicle length of processing mould platform, roof, bottom plate length too big also can disassemble into 2 ~ 3 at the less position of moment of flexure, the earlier ligature shaping of the reinforcing bar of every board, be equipped with auxiliary reinforcement.

As a technical optimization scheme of the present invention, the specific operation method of step D: pouring a template with the thickness of 1 cm-3 cm in a factory, designing the size according to the advance plan, wrapping a reinforcement cage into the template according to the size of a component to form a whole, preparing a counter-pull structure in the template, and ensuring the integrity of the templates on two sides in the pouring process according to the density of the counter-pull screw of the poured concrete; and finally forming the component.

As a technical optimization scheme of the present invention, the specific operation method of step F includes the following steps:

step a, earth excavation: according to the height of the bottom of the pipe gallery and the thickness of the cushion layer, earthwork is excavated to a preset depth, the width ensures that the width of the exceeding structure of each side is not less than 0.5m, the exceeding structure is used as a hoisting construction working surface, excessive excavation or less excavation is strictly forbidden, the surface of a foundation trench is smooth, and the assembled construction period is short, so that the foundation pit side slope can be simply supported, and the environment-friendly requirement is met; five-square inspection groove, design unit, construction unit, supervision unit, construction unit and reconnaissance unit;

step b, pouring a concrete cushion layer and a cushion beam: paying out the border line of the cushion layer, hanging a rope according to the border line, installing a batten which is prepared in advance and has the height of the cushion layer thickness according to the position of the border line, and reinforcing the side surface by using a reinforcing steel bar head; the pad beam is excavated, the central axis of the pad beam is the deformation joint position, the excavation mode is manual excavation, and the width and the depth meet the design size requirement; binding a pad beam steel bar; pouring cushion beam concrete, pouring cushion layer concrete, pouring according to the drawing requirement label and thickness, strickling the concrete by a strickling bar during pouring, controlling the thickness of the cushion layer, and wetting the lower surface layer before laying the cushion layer;

c, laying a bottom plate for waterproofing; according to the design requirements of a drawing, coiled materials or spray-coating type waterproof materials are adopted, the materials are leveled after being laid, finished product protection is well conducted, and throwing or walking machinery on the waterproof materials is forbidden;

d, hoisting the bottom plate, hoisting the inner side wall, hoisting the outer side wall, arranging a temporary righting member and hoisting the top plate;

e, inserting the rear inserted steel bar 10; for convenient binding, direct insertion, on-site binding and difficult binding in a template, a hanging ring is preset at the position of a steel bar, and the steel bar is inserted into the hanging ring to form fixation;

step f, erecting a temporary roof support, specifically calculating and determining according to the roof span and the concrete pouring thickness of the roof, wherein after the conventional erection is finished, the support distance is not more than 1 m;

step g, concrete pouring, wherein the concrete operation method comprises the following steps: pouring bottom plate concrete to the haunch part, wherein the haunch is not arranged on each individual pipe gallery, and a top die with the width of 20 cm-30 cm is arranged on each haunch; pouring side wall concrete in a layered manner after the concrete begins to be initially set, wherein the height is based on that the bottom plate concrete does not generate bulging; finally, the top plate concrete pouring is completed; vibrating by adopting a 50-degree vibrating rod, wherein the vibrating rod is slightly pulled up and down during the vibrating process of 'fast inserting and slow pulling' so that the concrete is uniformly vibrated up and down, and the moving radius cannot be larger than 1.5 times of the acting radius; when the upper concrete layer is vibrated, the concrete layer is inserted into the lower layer by about 50cm to eliminate the seam between the two layers; after the bottom plate and the top plate concrete are poured and vibrated to be compact, the concrete is pushed to be flat by a plastering tool, then the concrete is rubbed once by a wood trowel according to the marking line, the wood trowel is used for plastering and pressing when the concrete does not sink slightly and has a plastering line after the concrete is initially set for the second time, and the plastering trowel is used for finishing after the concrete is initially set for the third time;

and h, finishing wrapping a waterproof protective layer and backfilling.

The traditional open cut pipe gallery construction process comprises the following steps: excavating earthwork → constructing a concrete cushion layer → building a waterproof guide wall → paving waterproof → pouring waterproof protective mortar → binding a bottom plate, side wall reinforcing steel bars → supporting bottom plate side wall templates → pouring bottom plate concrete → supporting top plate templates → binding top plate reinforcing steel bars → pouring a top plate, side wall concrete → outer wrapping waterproof → constructing a waterproof protective layer → backfilling.

The utility model discloses new technology: excavating earthwork → constructing a concrete cushion → paving waterproof → placing members → arranging temporary supports of a top plate → pouring concrete → wrapping waterproof → constructing a waterproof protective layer → backfilling. The 14 technological processes are shortened to 9, the construction period can be saved by 40%, the cost of the steel plate waterstop is saved by one-time pouring, the bottom surface of the template is flat, the template is free from being disassembled, and the bottom waterproof protective layer is saved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (3)

1. The utility model provides an integration template pipe gallery, includes bed course (1), its characterized in that: the top of the cushion layer (1) is provided with a waterproof layer (2), and the top of the waterproof layer (2) is provided with a waterproof protective layer (3); the top of the cushion layer (1) is provided with a pipe gallery outer wall (4), a pipe gallery inner wall (5), a pipe gallery bottom plate (6) and a pipe gallery top plate (7) are arranged inside the pipe gallery outer wall (4), and reinforcing steel bars (8) are arranged between the pipe gallery outer wall (4) and the pipe gallery inner wall (5), the pipe gallery bottom plate (6) and the pipe gallery top plate (7); and the steel bars (8) are connected with the high-strength cement-based material template (9) through rear inserted steel bars (10).

2. The integrated template pipe gallery of claim 1, wherein: be connected between piping lane interior wall (5), piping lane bottom plate (6) and piping lane roof (7) for "mouth" font is whole.

3. The integrated template pipe gallery of claim 1, wherein: welding between piping lane interior wall (5), piping lane bottom plate (6) and piping lane roof (7).

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