CN215715534U - Deformation joint waterproof construction of utility tunnel - Google Patents

Abstract

The utility model discloses a waterproof structure for deformation joints of an underground comprehensive pipe gallery, which comprises a middle-buried steel-edge rubber water-stop, a rubber plate, a sealant, an externally attached rubber water-stop, a water receiving box, and a waterproof coil reinforcement. layer, waterproofing membrane layer, polystyrene foam board, layered backfill compacted soil, composite waterproofing membrane layer, linoleum insulation layer, concrete protective layer, polyethylene foam rod and concrete cushion. The middle-buried steel edge rubber waterstop is embedded in the middle of the deformation joint; the rubber sheet is filled in the deformation joint and located on both sides of the middle-buried steel-edge rubber waterstop; the sealant is filled on the water-facing surface and the top plate of the deformation joint. The backwater surface at the top plate of the deformation joint, the backwater surface at the sidewall of the deformation joint and the backwater surface of the deformation joint of the bottom plate; the externally attached rubber waterstop is arranged on the water-facing surface of the deformation joint of the bottom plate and the side wall of the deformation joint; the water receiving box It is arranged on the backwater surface of the deformation joint roof and the deformation joint side wall. The utility model can effectively prevent the groundwater from leaking into the cabin from the deformation joint.

Description

Deformation joint waterproof structure of underground comprehensive pipe gallery

technical field

The utility model relates to a deformation joint waterproof structure of an underground comprehensive pipe gallery.

Background technique

The comprehensive pipe gallery is one of the important symbols of the modernization of the new urban municipal infrastructure construction. The underground integrated pipe gallery not only solves the problem of urban traffic congestion, but also greatly facilitates the maintenance and repair of municipal facilities such as electricity, communication, gas, water supply and drainage, and heating. In the process of construction and management of the comprehensive pipe gallery, the waterproof and anti-seepage of the underground pipe gallery is the top priority. According to the requirements of the specification, the waterproof project of the underground pipe gallery is based on the self-waterproofing of the structure, and the waterproofing of the detailed structures such as construction joints and deformation joints is the key point. The deformation joint of the main structure of the pipe gallery is a general term for expansion joints, settlement joints and anti-vibration joints. Buildings are often deformed under the action of external factors, resulting in cracking or even damage. Deformation joints are structural joints reserved for this situation. They are located at the standard cross-section, where the cross-section changes, and where the entrances and exits are connected, on the side of the concrete pipe gallery. Deformation joints are reserved on the wall, top plate and bottom plate. In order to prevent groundwater from infiltrating into the cabin from the deformation joints, causing potential safety hazards, it is necessary to take reasonable measures to prevent leakage of the deformation joints located on the top plate, side walls and bottom plate. .

Utility model content

The purpose of the utility model is to overcome the defects of the prior art and provide a deformation joint waterproof structure of an underground comprehensive pipe gallery, which has outstanding waterproof and anti-seepage effects and can effectively prevent groundwater from leaking into the cabin from the deformation joint.

The purpose of this utility model is achieved in this way: a waterproof structure for deformation joints of an underground comprehensive pipe gallery, including a middle-buried steel edge rubber waterstop, a rubber plate, a sealant, an externally attached rubber waterstop, and a water receiving box , waterproofing membrane reinforcement layer, waterproofing membrane layer, polystyrene foam board, layered backfill compacted soil, composite waterproofing membrane layer, linoleum isolation layer, concrete protective layer, polyethylene foam rod and concrete cushion; ,

The middle-buried steel edge rubber waterstop is embedded in the middle of the deformation joint and wraps around the bottom plate, the side wall and the top plate into a loop, and the steel edges on both sides of the middle-buried steel edge rubber waterstop extend into the deformation joint respectively. The two side walls of the pipe gallery are fixedly connected to the special steel bars in the main structure of the pipe gallery;

The rubber plates are packed in the deformation seam and located on both sides of the middle-buried steel edge rubber waterstop;

The sealant is filled on the water-facing surface at the top plate of the deformation joint, the backwater surface at the top plate of the deformation joint, the backwater surface at the side wall of the deformation joint, and the backwater surface of the bottom plate deformation joint;

The externally attached rubber waterstop is arranged on the water-facing surface at the bottom plate of the deformation seam and the water-facing surface at the side wall of the deformation seam, and forms a sealing ring with the sealant on the water-facing surface at the top plate of the deformation seam;

The water receiving box is arranged on the backwater surface at the top plate of the deformation joint and the backwater surface at the side wall of the deformation joint;

The waterproofing membrane reinforcement layer is laid on the water-facing surface at the top plate of the deformation seam, the water-facing surface at the side wall of the deformation seam and the water-facing surface at the bottom plate of the deformation seam, and wraps around the bottom plate, the side wall and the top plate into a loop;

The waterproof coiled material layer is wrapped on the outer side of the waterproof coiled material reinforcement layer and wrapped into a loop along the bottom plate, the side wall and the top plate;

The polystyrene foam board and the layered backfill compacted soil are arranged on the outer side of the waterproofing membrane layer in sequence at the side walls of the corresponding deformation joints;

The composite waterproofing membrane layer and the linoleum isolation layer are arranged on the outer side of the waterproofing membrane layer in sequence at the top plate of the deformation joint;

The concrete protective layer is arranged on the top plate and is located outside the waterproofing membrane layer and the linoleum isolation layer;

The polyethylene foam rod is arranged between the waterproof coiled material reinforcing layer and the waterproof coiled material layer at the bottom plate corresponding to the deformation seam;

The concrete cushion layer corresponding to the bottom plate of the deformation joint is arranged on the outer side of the waterproof membrane layer.

In the waterproof structure of the deformation joint of the above-mentioned underground integrated pipe gallery, wherein, the position of the top plate of the corresponding deformation joint on the backwater surface of the top plate and the position of the sidewall corresponding to the deformation joint on the backwater surface of the side wall are respectively provided with water receiving grooves; The depth of the water receiving box is adapted to the depth of the water receiving groove, and the two side wings of the water receiving box are installed in the water receiving groove through cement nails, and are sealed by sealant.

In the waterproof structure of the deformation joint of the above-mentioned underground comprehensive pipe gallery, a drip groove of width × height = 10mm × 5mm is opened on the bottom surface of the water receiving groove on the backwater surface of the roof and on one side of the deformation seam roof.

The waterproof structure of the deformation joint of the above-mentioned underground comprehensive pipe gallery, wherein the buried steel edge rubber waterstop located in the top plate of the deformation joint and the buried steel edge rubber waterstop located in the deformation joint of the bottom plate are both in the form of a waterstop. Basin-shaped installation, that is, the steel edges on both sides of the middle-buried steel-edge rubber waterstop are upturned by 15° to 20°; the middle-buried steel-edge rubber waterstop located in the side wall of the deformation joint is straight. Install.

The waterproof structure of the deformation joint of the above-mentioned underground comprehensive pipe gallery, wherein, the width of the waterproof coiled material reinforcement layer is 1000mm and the center line of the width coincides with the centerline of the deformation joint; the waterproof coiled material reinforcement layer and the waterproof coiled material layer are both 1.2 mm-thick polymer self-adhesive film waterproofing membrane; the composite waterproofing membrane layer adopts a 1.2mm-thick root puncture-resistant composite waterproofing membrane.

In the waterproof structure of the deformation joint of the above-mentioned comprehensive underground pipe gallery, wherein the rubber plate is made of nitrile cork rubber with a thickness of 20 mm; and the sealant is made of polyurethane sealant.

In the waterproof structure of the deformation joint of the underground comprehensive pipe gallery, the thickness of the concrete protective layer is 70 mm.

The deformation joint waterproof structure of the underground comprehensive pipe gallery of the utility model has the following characteristics: it has the characteristics of structural safety, durability, crack resistance and impermeability, the adopted waterproof material is environmentally friendly, has no pollution to groundwater, is economical, practical, easy to construct, and is suitable for It has good waterproof and anti-seepage effects, which can effectively improve the waterproof effect of the pipe gallery, and then provide effective waterproofing for the power system, communication system, gas system, water supply and drainage system, heating system, etc. inside the pipe gallery. Protection, to avoid the failure of various systems inside the pipe gallery due to water leakage. The waterproof structure of the deformation joint of the pipe gallery still has strong rigidity while being waterproof, and can withstand different pressures and expansion deformation of the concrete structure.

Description of drawings

Fig. 1 is the schematic diagram of the waterproof structure of the deformation joint of the underground comprehensive pipe gallery of the present invention;

Fig. 2 is the schematic diagram of the waterproof structure at the deformation joint roof in the underground comprehensive pipe gallery of the present invention;

3 is a schematic diagram of the waterproof structure of the bottom plate deformation joint in the underground comprehensive pipe gallery of the present invention;

4 is a schematic diagram of the waterproof structure at the side wall of the deformation joint in the underground comprehensive pipe gallery of the present invention;

FIG. 5 is a detailed view of the P portion in FIG. 4 .

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings.

Please refer to FIG. 1 to FIG. 5 , the waterproof structure of the deformation joint of the underground comprehensive pipe gallery of the present invention includes a middle-buried steel edge rubber waterstop 10 , a rubber plate 20 , a sealant 30 , and an externally attached rubber waterstop 40 , water box 50, waterproof membrane reinforcement layer 60, waterproof membrane layer 70, polystyrene foam board 21, layered backfill compacted soil 22, composite waterproof membrane layer 31, linoleum isolation layer 32, concrete protective layer 33. Polyethylene foam rod 11 and concrete cushion 12; wherein,

The middle-buried steel edge rubber waterstop 10 is embedded in the middle of the deformation joint and is arranged in a loop along the bottom plate 100, the side wall 200 and the top plate 300, and the steel edges on both sides of the middle-buried steel edge rubber waterstop 10 are respectively After extending into the two side walls of the deformation joint, it is fixedly connected with the special steel bars in the main structure of the pipe gallery to avoid shaking of the middle-buried steel edge rubber waterstop 10; the middle-buried steel edge rubber waterstop located in the top plate of the deformation joint 3 The belt 10 and the middle-buried steel-edge rubber waterstop 10 located in the bottom plate 1 of the deformation joint are installed in a basin shape, that is, the steel edges on both sides of the middle-buried steel-edge rubber waterstop 10 are upturned by 15° to 20 degrees. °; The middle-buried steel edge rubber waterstop 10 located in the side wall 2 of the deformation joint is installed straight;

The rubber plates 20 are packed in the deformation joints and located on both sides of the steel edge rubber waterstop 10; the rubber plates 20 are made of 20mm thick nitrile cork rubber;

The sealant 30 is filled on the upstream surface of the deformation joint roof 3, the backwater surface of the deformation joint roof 3, the backwater surface of the deformation joint side wall 2 and the backwater surface of the deformation joint bottom plate 1; filled in the deformation joint roof 3 The sealant 30 on the water-facing surface is made of low-modulus polyurethane sealant; the sealant 30 filled on the back surface of the deformation joint top plate 3, the back water surface of the deformation joint side wall 2 and the back water surface of the deformation joint bottom plate 1 are all made of high-quality sealant 30. Modulus polyurethane sealant; sealant 30 can close the seam of the deformation seam;

The externally attached rubber waterstop 40 is arranged on the water facing surface of the bottom plate of the deformation joint 1 and the water facing surface of the side wall of the deformation joint 2, and forms a sealing ring with the sealant 30 on the water facing surface of the top plate 3 of the deformation joint;

The water receiving box 50 is arranged on the backwater surface of the deformation joint top plate 3 and the backwater surface of the deformation joint side wall 2; The water receiving grooves 51 are opened at the positions 2 of the side walls of the joint; the bottom surface of the water receiving grooves 51 located on the back surface of the top plate 300 and a drip groove of width × height = 10 mm × 5 mm is opened at 80 mm on one side of the deformation seam roof 3 52; the depth of the water receiving box 50 is adapted to the depth of the water receiving groove 51, and the two side wings of the water receiving box 50 are installed in the water receiving groove 51 through cement nails 53, and are sealed by high-modulus polyurethane sealant 30;

The waterproofing membrane reinforcement layer 60 is laid on the water-facing surface of the deformation joint top plate 3, the water-facing surface of the deformation joint side wall 2 and the water-facing surface of the deformation joint bottom plate 1, and is wound along the bottom plate 100, the side wall 200 and the top plate 300. Ring setting; the width of the waterproof membrane reinforcement layer 60 is 1000mm and the center line of the width coincides with the center line of the deformation seam;

The waterproofing membrane layer 70 is wrapped on the outer side of the waterproofing membrane reinforcing layer 60 and is looped along the bottom plate 100, the side wall 200 and the top plate 300;

The waterproofing membrane reinforcement layer 60 and the waterproofing membrane layer 70 are made of 1.2mm thick polymer self-adhesive film waterproofing membrane;

The polystyrene foam board 21 and the layered backfill compacted soil 22 are arranged on the outer side of the waterproof membrane layer 70 in sequence at the side wall 2 of the deformation joint;

The composite waterproofing membrane layer 31 and the linoleum isolation layer 32 are arranged on the outer side of the waterproofing membrane layer 70 corresponding to the deformation joint top plate 3 in turn; the composite waterproofing membrane layer 31 adopts a 1.2mm thick root puncture-resistant composite waterproofing membrane;

The concrete protective layer 33 is arranged on the top plate 300 and is located outside the waterproof membrane layer 70 and the linoleum isolation layer 32; the thickness of the concrete protective layer 33 is 70mm;

The polyethylene foam rod 11 is arranged between the waterproofing membrane reinforcement layer 60 and the waterproofing membrane layer 70 at the base plate 1 of the corresponding deformation joint;

The concrete cushion layer 12 is provided on the outer side of the waterproof membrane layer 70 corresponding to the bottom plate deformation joint 1 .

In the waterproof structure of the deformation joint of the underground comprehensive pipe gallery of the present invention, a steel edge rubber waterstop 10 is embedded in the middle of the deformation joint. On the other hand, the ability of the deformation joint to withstand pressure, expansion and extrusion is maintained, that is, the strength of the pipe gallery is maintained; The plate 20 can fill most of the gaps in the deformation seam, and then the rubber plate 20 can be used to prevent water from flowing to the position of the buried steel edge rubber waterstop 10 during waterproofing, so as to enhance the waterproof capability of the waterproof structure. Good chemical stability, resistance to most acid and alkali erosion, environmental stress cracking resistance, impact resistance, etc., and long-term durability; on the one hand, it can be waterproof, on the other hand, it can also improve the impact resistance and stress resistance of deformation joints ; On the water-facing surface of the deformation joint 2 of the bottom plate and the water-facing surface of the side wall of the deformation joint 3, an externally attached rubber waterstop 40 is respectively provided, and the externally attached rubber waterstop 40 has good elasticity, wear resistance, and aging resistance. And tear resistance, strong adaptability to deformation, good waterproof performance, can produce elastic deformation under various loads, so as to play a solid seal, effectively prevent water leakage, water seepage and play a role in shock absorption and buffering. The sealant 30 can close the seam of the deformation seam and prevent the rubber sheet 20 from sliding out of the deformation seam; a water receiving box 50 is provided on the backwater surface of the deformation seam roof 3 and the backwater surface of the deformation seam side wall 2, which can reduce the deformation of the deformation seam. The water seepage that cannot be prevented by the sealant 30 on the backwater surface of the joint top plate 3 and the sealant 30 on the backwater surface of the deformation joint top plate 3 shall be discharged in time to avoid residual water seepage at the deformation joint top plate 3 and the deformation joint top plate 3. The water tank 52 plays the role of disconnecting the seepage water, which can avoid the expansion of the polluted area of the wall body caused by the seepage water. Polyethylene foam rods 11 are arranged at the bottom 1 of the bottom plate 1 on the water-facing surface of the bottom plate 100 corresponding to the deformation joints, and a linoleum isolation layer 32 is provided at the top plate 3 of the top plate 300 corresponding to the deformation joints. The polyethylene foam rods 11 do not absorb water and are resistant to water. Impact, soft and elastic, shockproof, moisture-proof, waterproof, can prevent water from entering the deformation seam 1 of the bottom plate.

The above embodiments are only for the purpose of illustrating the present utility model, rather than limiting the present utility model. Those skilled in the relevant technical field can also make various transformations or modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.

Claims (7)

1. A waterproof structure of a deformation joint of an underground comprehensive pipe gallery comprises a buried steel-edged rubber water stop, a rubber plate, a sealant, an externally-attached rubber water stop, a water receiving box, a waterproof coiled material reinforcing layer, a waterproof coiled material layer, a polystyrene foam plate, layered backfill compacted soil, a composite waterproof coiled material layer, a felt isolating layer, a concrete protective layer, a polyethylene foam rod and a concrete cushion layer; it is characterized in that the preparation method is characterized in that,

the middle embedded steel edge rubber water stop is embedded in the middle of the deformation joint and is wrapped into a ring along the bottom plate, the side walls and the top plate, and the steel edges on the two sides of the middle embedded steel edge rubber water stop extend into the two side walls of the deformation joint respectively and then are fixedly connected with special steel bars in the main structure of the pipe gallery;

the rubber plates are filled in the deformation joints and are positioned on two sides of the buried steel-edged rubber water stop;

the sealant is filled in the upstream surface of the deformation joint top plate, the back surface of the deformation joint side wall and the back surface of the bottom plate deformation joint;

the external rubber waterstop is arranged on the upstream surface at the deformation joint bottom plate and the upstream surface at the deformation joint side wall, and forms a sealing ring with the sealant on the upstream surface at the deformation joint top plate;

the water receiving box is arranged on the back water surface at the deformation joint top plate and the back water surface at the deformation joint side wall;

the waterproof coiled material reinforcing layer is laid on the upstream surface of the deformation joint top plate, the upstream surface of the deformation joint side wall and the upstream surface of the deformation joint bottom plate and is wrapped into a ring along the bottom plate, the side wall and the top plate;

the waterproof coiled material layer is coated on the outer side of the waterproof coiled material reinforcing layer and is wrapped into a ring along the bottom plate, the side wall and the top plate;

the polystyrene foam board and the layered backfill compacted soil are sequentially arranged on the outer side of the waterproof roll material layer at the corresponding deformation joint side wall;

the composite waterproof roll layer and the asphalt felt isolating layer are sequentially arranged on the outer side of the waterproof roll layer at positions corresponding to the deformation joint top plate;

the concrete protective layer is arranged on the top plate and positioned on the outer sides of the waterproof coiled material layer and the asphalt felt isolation layer;

the position of the polyethylene foam rod corresponding to the deformation joint bottom plate is arranged between the waterproof roll reinforcing layer and the waterproof roll layer;

the concrete cushion layer is arranged on the outer side of the waterproof roll material layer corresponding to the deformation joint bottom plate.

2. The waterproof structure for the deformation joint of the underground comprehensive pipe gallery according to claim 1, wherein water receiving grooves are respectively formed in the positions, corresponding to the deformation joint top plate, on the back water surface of the top plate and the positions, corresponding to the deformation joint side wall, on the back water surface of the side wall; the depth of the water receiving box is matched with that of the water receiving tank, and wing plates on two sides of the water receiving box are installed in the water receiving tank through cement nails and sealed through sealant.

3. The waterproof structure of the underground comprehensive pipe gallery deformation joint as claimed in claim 2, wherein a water dripping groove with the width multiplied by 10mm multiplied by 5mm is formed in the bottom surface of the water receiving groove on the back water surface of the top plate and on one side of the deformation joint top plate.

4. The waterproof structure of the deformation joint of the underground comprehensive pipe gallery according to claim 1, wherein the buried steel-edged rubber water stop positioned in the deformation joint top plate and the buried steel-edged rubber water stop positioned in the deformation joint of the bottom plate are both installed in a basin shape, that is, the steel edges on both sides of the buried steel-edged rubber water stop are respectively tilted up by 15-20 degrees; the buried steel-edged rubber water stop positioned in the deformation joint side wall is installed straightly.

5. The waterproof structure of the underground comprehensive pipe gallery deformation joint according to claim 1, wherein the width of the waterproof coiled material reinforcing layer is 1000mm, and the width center line is superposed with the center line of the deformation joint; the waterproof roll reinforcing layer and the waterproof roll layer are both made of a macromolecular self-adhesive film waterproof roll with the thickness of 1.2 mm; the composite waterproof roll layer is a root-puncture-resistant composite waterproof roll with the thickness of 1.2 mm.

6. The waterproof structure of the underground pipe gallery deformation joint according to claim 1, wherein the rubber plate is made of 20 mm-thick nitrile cork rubber; the sealant is polyurethane sealant.

7. The waterproof structure of utility tunnel movement joint of claim 1, characterized in that, the thickness of concrete protective layer is 70 mm.

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