CN207260190U - A kind of assembled underground pipe gallery splits structure - Google Patents

Abstract

The utility model belongs to Urban Underground pipe gallery field, is specially that a kind of assembled underground pipe gallery splits structure, the use that the connection of such a combining structure section of jurisdiction and overall package design can be as underground pipe galleries in actually building.Using prefabrication steel plate section of jurisdiction, on-site hoisting prefabricated steel section of jurisdiction, and self-compacting concrete is irrigated in assembled good prefabricated steel section of jurisdiction, it is steel plate to form ectonexine, and centre is the Pipe rack of concrete, which includes：Section of jurisdiction on prefabricated short side, section of jurisdiction, prefabricated lower section of jurisdiction and divide storehouse steel plate in prefabricated long side, section of jurisdiction both ends connect with section of jurisdiction in prefabricated long side on prefabricated short side, the one end for originating prefabricated upper section of jurisdiction and the prefabricated upper section of jurisdiction of end is flushed with prefabricated lower section of jurisdiction, and the other end connects with prefabricated long side section of jurisdiction is assembled into piping lane.The utility model improves the deficiency of traditional Pipe rack, meets the actual requirement of engineering that pipeline is installed in underground pipe gallery.

Description

A prefabricated underground utility tunnel split structure

technical field

The utility model belongs to the field of urban underground comprehensive pipe gallery, and specifically relates to a dismantled structure of an assembled underground comprehensive pipe gallery. The connection and overall assembly design of the segments of the combined structure can be used as an underground comprehensive pipe gallery in actual construction.

Background technique

In the construction of urban underground comprehensive pipe corridors, the segments mostly adopt prefabricated concrete structure or prefabricated thick steel plate structure, and the connection of the segments mainly adopts bolt connection or welding. In this split structure, the split length of the segments is short, self-heavy, and there are many splicing joints, which delays the construction progress and wastes a lot of concrete and steel; the poor integrity of the pipe gallery and poor seismic performance restrict its use in earthquakes. The promotion and application of the district; the interior of the pipe gallery is riddled with holes and even serious water leakage due to the over-drilling of the pipe laying; The "spider web" phenomenon such as chaotic cloth has brought great inconvenience to urban planning and comprehensive management.

Utility model content

The purpose of the utility model is to provide a dismantling structure of an assembled underground comprehensive pipe gallery, improve the shortcomings of the traditional pipe gallery structure, and meet the actual engineering needs of pipelines installed in the underground pipe gallery.

The technical scheme of the utility model is:

A prefabricated underground comprehensive pipe gallery split structure, using factory prefabricated steel plate segments, hoisting the prefabricated steel plate segments on site, and pouring self-compacting concrete into the assembled prefabricated steel plate segments, forming the inner and outer layers of steel plates and the middle of concrete The pipe gallery structure includes: prefabricated short-side upper segment, prefabricated long-side upper segment, prefabricated lower segment and sub-warehouse steel plate, the two ends of the prefabricated short-side upper segment are connected with the prefabricated long-side upper segment, One end of the starting prefabricated upper segment and the end prefabricated upper segment are flush with the prefabricated lower segment, and the other end is connected with the prefabricated long side segment to form a pipe gallery; the prefabricated short side upper segment and the prefabricated long side upper segment As well as the joints between the prefabricated short-side upper segment, the prefabricated long-side upper segment and the prefabricated lower segment, pass the U-shaped bolt rod through the reserved bolt hole, add rubber pads inside the segment and tighten the nut to connect, the pipe The joints between the steel plates of the internal and partial warehouses are connected by single-sided welding on the upper and lower sides; after all the prefabricated segment structures are assembled, self-compacting concrete is poured through the reserved segment pouring holes and the reserved steel plate pouring holes at the same time, and the steel plates pass through the self-compacting concrete. Dense concrete joins to form a whole.

In the split structure of the assembled underground comprehensive pipe gallery, the prefabricated lower segment is connected by straight bolts between two arc-shaped steel plates, the prefabricated lower segment and the sub-compartment steel plate form the prefabricated sub-compartment lower segment, and the sub-compartment steel plate Set in the prefabricated lower segment; the prefabricated short side upper segment or the prefabricated long side upper segment is connected by a straight bolt rod between two arc-shaped steel plates, and the length of the arc-shaped steel plate of the prefabricated short side segment is shorter than the prefabricated long side The length of the curved steel plate of the upper segment.

In the dismantling structure of the assembled underground comprehensive pipe gallery, the sub-warehouse steel plates include two right-angle steel plates, steel plates with reserved steel plate pouring holes, and concrete pads. The facades of the two right-angle steel plates are oppositely arranged, and the two right-angle The facades of the steel plates are connected by straight bolt rods, the planes of the two right-angled steel plates are kept on the same plane, the planes of the two right-angled steel plates are provided with concrete pads, and the tops of the concrete pads are provided with steel plates with reserved steel plate pouring holes.

In the split structure of the assembled underground comprehensive pipe gallery, reserved bolt holes are set on the facades of the two right-angled steel plates, and the two ends of the straight bolt rods of the bolts on the pressure-bearing backing plate respectively pass through the reserved bolt holes. Add rubber pads to the two ends of the bolt holes and tighten the nuts to fix the two steel plates. The distance between the facades of the two steel plates is determined by the distance between the pressure pads of the two steel plates.

In the split structure of the assembled underground comprehensive pipe gallery, the bolts of the pressure backing plate are composed of straight bolt rods, nuts and steel plate pressure pads, and the distance between the steel plate pressure pads and the nuts is greater than the thickness of the steel plate and the curved steel plate. Add a rubber pad to tighten the nut to increase the tightness between the nut and the steel plate and the curved steel plate.

In the dismantled structure of the prefabricated underground comprehensive pipe gallery, the inner side of the pipe gallery is provided with an arc-shaped steel frame, which is divided into three parts. The arc-shaped steel frame is symmetrically arranged on the inner side of the prefabricated lower segment, and the concave pipe pad is symmetrically arranged on both sides of the facade of the two right-angled steel plates of the sub-warehouse steel plate.

The disassembled structure of the assembled underground comprehensive pipe gallery, the side wall of the arc-shaped steel frame is welded to the pipeline support, and the concave-shaped pipeline steel pipe support is connected to the pipeline support by welding, and the curvature of the arc-shaped steel frame is consistent with the prefabricated short side segment , The curvature of the inner circle of the segment on the prefabricated long side and the inner circle of the prefabricated lower segment is consistent.

The utility model has the following characteristics and beneficial effects:

1. Compared with the traditional prefabricated concrete structure or prefabricated thick steel plate structure, the split structure of the assembled underground comprehensive pipe gallery of the present utility model makes full use of the high tensile strength of steel and the high compressive strength of concrete, and in the same space Under volume conditions, the thickness and self-weight of the structure are greatly reduced, thereby greatly reducing the amount of concrete and steel.

2. Compared with the traditional prefabricated concrete structure or prefabricated thick steel plate structure, the split structure of the prefabricated underground comprehensive pipe gallery of the present utility model has a large split length, small splicing joints, superior integrity and seismic performance, so it can be popularized Use in earthquake-resistant areas.

3. Compared with the traditional mixed prefabricated concrete structure, the split structure of the assembled underground comprehensive pipe gallery of the present utility model avoids the slow speed of on-site drilling and the structural damage caused by dense drilling during the process of laying pipes and pipelines inside the pipe gallery. Problems such as hundreds of holes or even cracks and water leakage can be improved to improve the impermeability of the structure and shorten the construction progress.

4. Compared with the traditional underground comprehensive pipe gallery structure, the split structure of the assembled underground comprehensive pipe gallery of the present utility model efficiently divides the internal space of the pipe gallery by rationally distributing the pipeline pads, setting steel frames and pipeline supports, etc., and organizes the pipelines Laying, reducing the number of underground pipe corridors, improving the "spider web" state of urban pipelines.

Description of drawings

Figure 1 is a three-dimensional view of the bolts on the bearing plate.

Fig. 2 is a three-dimensional diagram of a U-shaped bolt.

Figure 3 is a three-dimensional view of the pipeline support.

Fig. 4 is a three-dimensional diagram of the assembly of the curved steel frame pipeline support.

Fig. 5 is a three-dimensional view of a concave pipeline pad.

Fig. 6 is a three-dimensional view of the concrete pad.

Fig. 7 is a three-dimensional view of reserved steel plate with holes.

Fig. 8 is a three-dimensional diagram of the distribution of steel plates and pads in the compartments.

Fig. 9 is a three-dimensional view of the completed assembly of the sub-compartment steel plates.

Fig. 10 is a three-dimensional view of the prefabricated lower segment.

Fig. 11 is a three-dimensional diagram of segment assembly under the prefabricated compartment.

Fig. 12 is a three-dimensional view of the prefabricated segment on the short side.

Fig. 13 is a three-dimensional view of the segment on the prefabricated long side.

Fig. 14 is a three-dimensional view of the assembly of the segment on the prefabricated short side and the segment on the lower side of the prefabricated compartment.

Fig. 15 is a three-dimensional view of the assembly of the segment on the prefabricated long side and the segment under the prefabricated compartment.

Fig. 16 is a three-dimensional view of the side seams of the segment on the prefabricated long side and the segment on the lower side of the prefabricated compartment.

Figure 17 is a three-dimensional view of the side seams after the assembly of the prefabricated pipe gallery structure.

Figure 18 is a three-dimensional view of the pouring of the prefabricated pipe gallery structure.

In the figure, 1 straight bolt rod; 2 nut; 3 steel plate pressure pad; 4, U-shaped bolt rod; 5 concave pipeline steel pipe support; 6 pipeline support; Bone; 10 steel plate; 11 curved steel plate; 12 reserved bolt hole; 13 rubber pad; 14 reserved segment pouring hole; 15 reserved steel plate pouring hole; 16 self-compacting concrete; .

Detailed ways

In the specific implementation process, the utility model proposes a dismantling structure of an assembled underground comprehensive pipe gallery, which adopts factory prefabricated steel plate segments, hoisting the prefabricated steel plate segments on site, and pouring self-compacting concrete into the assembled prefabricated steel plate segments , forming a pipe gallery structure in which the inner and outer layers are steel plates and the middle is concrete. This structure has the advantages of light weight of the prefabricated segment, large split length of the segment, small splicing joint, convenient assembly, superior integrity and seismic performance, and good impermeability. At the same time, in the pipe gallery, the interior of the pipe gallery is divided into different spaces by means of dividing warehouses and setting pipeline brackets. In different spaces in the same pipe gallery, different pipelines can be laid to maximize the use of the interior space of the pipe gallery. Reduce the number of underground pipe corridors and improve the "spider web" status of urban pipelines.

As shown in Figure 1-Figure 11, the split structure of the assembled underground comprehensive pipe gallery of the utility model mainly includes: straight bolt rod 1, nut 2, steel plate pressure pad 3, U-shaped bolt rod 4, concave pipeline steel pipe 5 , pipeline support 6, concave pipeline pad 7, concrete pad 8, steel frame 9, steel plate 10, arc steel plate 11, reserved bolt hole 12, rubber pad 13, reserved segment pouring hole 14, reserved steel plate Pouring hole 15, self-compacting concrete 16, steel glue 17, non-curing rubber asphalt 18, etc. The specific structure is as follows:

As shown in Figure 1, the bolts of the pressure backing plate are composed of a straight bolt rod 1, a nut 2 and a steel plate pressure pad 3, and the distance between the steel plate pressure pad 3 and the nut 2 is slightly greater than the thickness of the steel plate 10 and the curved steel plate 11 , and then add a rubber pad 13 to tighten the nut 2 to increase the tightness between the nut and the steel plate 10 and the curved steel plate 11. Use pressure backing plate bolt 3, be to grasp the distance of two steel plates flexibly, and two steel plates (steel plate 10 and curved steel plate 11) are connected.

As shown in Figure 2, the U-shaped bolt is composed of a nut 2 and a U-shaped bolt rod 4, passing through the reserved bolt hole 12, and connecting the prefabricated lower segment with the prefabricated long-side upper segment and the pre-fabricated short-side upper segment.

As shown in Figures 3-4, the concave pipeline steel pipe support 5 is connected to the pipeline support 6 by welding, and then according to the pre-design, they are welded to the side wall of the arc-shaped steel frame 9, and the curvature of the arc-shaped steel frame 9 is the same as The curvature of the inner circle in Figure 10 is consistent. The arc-shaped steel frame is divided into 9 upper and lower steel frames, all of which are completed in the prefabricated component factory.

As shown in Figure 5, the concave pipeline spacer 7 can be made into a concrete structure or a steel pipe structure. Situations place the concave pipe spacer 7 in the desired chamber.

The utility model's assembled underground comprehensive pipe gallery disassembles the structure, and the specific assembly process is as follows:

As shown in Figures 6-9, the sub-warehouse steel plates include two right-angle steel plates 10, steel plates 10 with reserved steel plate pouring holes 15, and concrete pads 8. The facades of the two right-angle steel plates 10 are arranged oppositely, and the two right-angle steel plates The facades of the shaped steel plates 10 are connected by straight bolt rods 1, the planes of the two right-angled steel plates 10 are kept on the same plane, the planes of the two right-angled steel plates 10 are provided with concrete pads 8, and the tops of the concrete pads 8 are provided with reserved steel plates The steel plate 10 with pouring holes 15 .

Its production process: first pass the two ends of the straight bolt rod 1 with the steel plate pressure pad 3 respectively through the reserved bolt holes 12 reserved on the facades of the two right-angled steel plates 10, and then pass through the two ends of the reserved bolt holes 12. Two steel plates 10 are fixed by tightening nuts 2 at the ends respectively, and the distance between the two steel plates 10 facades is determined by the distance between the two steel plate pressure pads 3 . Then lay concrete pads 8 above the steel plates 10 at a certain interval, and spot-weld a raised small node at the midpoint of each side of each concrete pad 8, the purpose is to fix the concrete pads 8, and finally there will be reserved steel plates The steel plate 10 (Fig. 7) of pouring hole 15 is placed on concrete cushion block 8 and assembles component storehouse steel plate Fig. 9.

As shown in Figures 10-11, the prefabricated lower segment of the sub-compartment includes the prefabricated lower segment and the sub-compartment steel plate. The prefabricated lower segment is connected by a straight bolt rod 1 between two arc-shaped steel plates 11, and the sub-compartment steel plate is set on Prefabricated in the lower segment.

Its production process: firstly pass the two ends of the straight bolt rod 1 with the steel plate pressure pad 3 respectively through the reserved bolt holes 12 on the two curved steel plates 11 with the same center and different radii, and then add bolt holes 12 inside. Rubber pad 13 tightens nut 2 and fixes two arc-shaped steel plates 11 to be assembled into prefabricated lower segment, and the distance between two arc-shaped steel plates 11 is determined by the distance between two steel plate pressure pads 3 . Then put the sub-bin steel plate into the prefabricated lower segment, after positioning, perform single-sided external welding on the left and right sides of the sub-compartment steel plate and the bottom of the segment, and perform single-sided external welding on the left and right sides of the upper side of the sub-bin steel plate and the left and right side walls of the segment The exterior is welded and assembled into a prefabricated sub-bin lower segment.

As shown in Figures 12-13, the prefabricated upper segment (the prefabricated short side segment or the prefabricated long side segment) is connected by a straight bolt rod 1 between two arc-shaped steel plates 11, and the prefabricated short side upper segment The length of the curved steel plate 11 is less than the length of the curved steel plate 11 of the segment on the prefabricated long side.

Its production process: firstly pass the two ends of the straight bolt rod 1 with the steel plate pressure pad 3 respectively through the reserved bolt holes 12 on the two curved steel plates 11 with the same center and different radii, and then add bolt holes 12 inside. Rubber pad 13 tightens nut 2 and fixes two arc-shaped steel plates 11 to be assembled into prefabricated segment on the short side or segment on the prefabricated long side.

The above process can be prefabricated in the factory, and the following process is completed on the construction site.

As shown in Figures 14-18, after the lower segment of the prefabricated sub-bin is hoisted in place, the upper segment of the prefabricated short side and the upper segment of the prefabricated long side are respectively hoisted to the corresponding positions above the prefabricated lower segment, and the upper segment of the prefabricated short side is The two ends of the segment are connected with the segment on the prefabricated long side, one end of the upper prefabricated segment at the start and the upper segment at the end of the prefabricated upper segment are flush with the lower prefabricated segment, and the other end is connected with the prefabricated long side segment to form a pipe gallery (Figure 17). At the joints between the prefabricated short-side upper segment and the prefabricated long-side upper segment, the prefabricated short-side upper segment, the prefabricated long-side upper segment and the prefabricated lower segment, pass through the reserved bolt through the U-shaped bolt rod 4 hole 12, and then add rubber pad 13 inside the segment to tighten the nut 2 for connection, and the joints between the steel plates in the segment inside the segment are connected by single-sided welding on the upper and lower sides. The arc-shaped steel frame 9 is divided into three parts and arranged on the inner side of the pipe gallery, the upper half of the arc-shaped steel frame is arranged on the inner side of the prefabricated upper segment, and the other two parts of the arc-shaped steel frame are symmetrically arranged on the inner side of the prefabricated lower segment. The concave pipe pads 7 are symmetrically arranged on both sides of the facade of the two rectangular steel plates 10 . After all prefabricated segment structures are assembled, self-compacting concrete 16 is poured simultaneously through reserved segment pouring holes 14 and reserved steel plate pouring holes 15, and the steel plates are connected into a whole through self-compacting concrete 16 (Fig. 18). After the initial setting of the dense concrete 16 is completed, the internal and external joints of the segments are coated with steel glue 17 to improve the aging resistance and corrosion resistance of the steel structure. After the steel glue 17 solidifies, non-curing rubber asphalt 18 is used for joint waterproofing .

The utility model's assembled integrated pipe gallery structure is suitable for pipe galleries with large diameters. The interior of the pipe gallery is divided into three warehouses by steel plates 10, and the warehouses can be flexibly divided according to requirements during actual construction. The pipeline laying form inside the warehouse can be freely and flexibly arranged through the concave pipeline support 5, the pipeline support 6 and the steel frame 9, and the pipeline laying can be laid through the concave pipeline pad 7.

The results of the examples show that the disassembled structure of the assembled underground comprehensive pipe gallery of the utility model: during the connection process, the construction operation is simple, the technical requirements for the construction personnel are not high, the construction and assembly are carried out at the same time, and the construction period can be greatly shortened; the structural quality It has the advantages of lightness, small thickness, integrity and good seismic performance; it can give full play to the characteristics of high compressive strength of steel plate and concrete, which is conducive to improving the service life of the comprehensive pipe gallery; avoiding the interior of the pipe gallery full of holes and improving the structure The anti-seepage performance of the free pipe gallery, the installation position of the free pipe gallery, the flexible steel frame and the concave pipe cushion block facilitate the overall laying of pipes and pipelines, and improve the "spider web" state of urban pipelines.

Claims (7)

1. a kind of assembled underground pipe gallery splits structure, it is characterised in that using prefabrication steel plate section of jurisdiction, on-site hoisting Prefabricated steel section of jurisdiction, and self-compacting concrete is irrigated in assembled good prefabricated steel section of jurisdiction, it is steel plate to form ectonexine, middle For the Pipe rack of concrete, which includes：Section of jurisdiction on prefabricated short side, section of jurisdiction, prefabricated lower section of jurisdiction and Fen Cang in prefabricated long side Steel plate, section of jurisdiction both ends connect with section of jurisdiction in prefabricated long side on prefabricated short side, originate prefabricated upper section of jurisdiction and terminate prefabricated upper section of jurisdiction One end is flushed with prefabricated lower section of jurisdiction, and the other end connects with prefabricated long side section of jurisdiction is assembled into piping lane；On prefabricated short side section of jurisdiction with it is prefabricated Section of jurisdiction on section of jurisdiction and prefabricated short side, the seam crossing in prefabricated long side between section of jurisdiction and prefabricated lower section of jurisdiction, pass through U-shaped spiral shell in long side Tightening latch passes through prepared screw-bolt hole, and inside section of jurisdiction plus rubber pad is tightened nut and connected, the seam between the steel plate of section of jurisdiction inside points storehouse Carry out the connection of lower outer portion single-sided welding；After all prefabricated pipe section structure assemblings terminate, by reserved section of jurisdiction pouring hole and Reserved steel plate pouring hole pours self-compacting concrete at the same time, and steel plate is connected to become an entirety by self-compacting concrete.

2. assembled underground pipe gallery described in accordance with the claim 1 splits structure, it is characterised in that prefabricated lower section of jurisdiction is two Connected between block curved plate by straight shank of bolt, prefabricated lower section of jurisdiction and a point storehouse steel plate form section of jurisdiction under prefabricated point of storehouse, divide storehouse steel Plate is arranged in prefabricated lower section of jurisdiction；Section of jurisdiction passes through straight spiral shell between two pieces of curved plates in section of jurisdiction or prefabricated long side on prefabricated short side Tightening latch connects, and the curved plate length of section of jurisdiction is less than the curved plate length of section of jurisdiction in prefabricated long side on prefabricated short side.

3. split structure according to the assembled underground pipe gallery described in claim 1 or 2, it is characterised in that divide Cang Gangbanbao Two blocks of square steel plates, the steel plate of reserved steel plate pouring hole, concrete pad are included, the facade of two blocks of square steel plates is opposite to be set To put, connected between the facade of two blocks of square steel plates by straight shank of bolt, the plane of two blocks of square steel plates keeps same plane, The plane of two blocks of square steel plates sets concrete pad, and the steel plate of reserved steel plate pouring hole is set at the top of concrete pad.

4. assembled underground pipe gallery described in accordance with the claim 3 splits structure, it is characterised in that two blocks of square steel plates Facade prepared screw-bolt hole is set, the straight shank of bolt both ends of Pressure-bearing pads bolt are each passed through the prepared screw-bolt hole, reserved The both ends of bolt hole add rubber pad to tighten nut to fix two blocks of steel plates respectively, and the distance between two pieces of steel plate facades are by two blocks of steel plates The distance between pressure-bearing pad determines.

5. according to described in claim 4 assembled underground pipe gallery split structure, it is characterised in that Pressure-bearing pads bolt by Straight shank of bolt, nut and steel plate pressure-bearing pad composition, the distance between steel plate pressure-bearing pad and nut are more than steel plate and curved plate Thickness, adds rubber pad to tighten nut, increases the adaptation between nut and steel plate and curved plate.

6. assembled underground pipe gallery described in accordance with the claim 1 splits structure, it is characterised in that arc is set on the inside of piping lane Shape reinforcing bar, arc reinforcing bar are divided into three parts, and top half arc reinforcing bar is arranged on the inside of prefabricated upper section of jurisdiction, another two parts arc Reinforcing bar is symmetrically disposed on the inside of prefabricated lower section of jurisdiction, and spill pipeline cushion block is symmetrically disposed on two blocks of square steel plates being divided to storehouse steel plate Facade both sides.

7. split structure according to the assembled underground pipe gallery described in claim 6, it is characterised in that the side wall of arc reinforcing bar Welded pipeline stent, spill pipeline steel tube support are connected by welding with line holder, the curvature of arc reinforcing bar and prefabricated short side Section of jurisdiction, the curvature of prefabricated lower section of jurisdiction inner circle are consistent on upper section of jurisdiction, prefabricated long side.