CN212866239U - Mounting structure of rural sewage pipe network plastics inspection shaft - Google Patents
Mounting structure of rural sewage pipe network plastics inspection shaft Download PDFInfo
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- CN212866239U CN212866239U CN202021264615.2U CN202021264615U CN212866239U CN 212866239 U CN212866239 U CN 212866239U CN 202021264615 U CN202021264615 U CN 202021264615U CN 212866239 U CN212866239 U CN 212866239U
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- shaft
- seat
- cast
- inspection well
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- 238000007689 inspection Methods 0.000 title claims abstract description 66
- 229920003023 plastic Polymers 0.000 title claims abstract description 33
- 239000004033 plastic Substances 0.000 title claims abstract description 33
- 239000010865 sewage Substances 0.000 title claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 238000011065 in-situ storage Methods 0.000 claims abstract description 19
- 239000004576 sand Substances 0.000 claims abstract description 16
- 239000004567 concrete Substances 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract 3
- 239000010410 layer Substances 0.000 claims description 24
- 239000002344 surface layer Substances 0.000 claims description 11
- 239000007769 metal material Substances 0.000 claims description 6
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses an installation structure of a plastic inspection well of a rural sewage pipe network, which comprises a well seat, a shaft, a well cover seat, a well cover, an inspection well foundation pit, a metal retaining ring and a cast-in-situ pressure-bearing ring; the well cover seat is arranged at the top of the inspection well foundation pit; the well base and the shaft are arranged in the inspection well foundation pit, so that the top surface of the shaft is lower than the bottom surface of the well cover base by a set distance; the metal retainer ring is sleeved on the outer wall of the top of the shaft, and the top surface of the metal retainer ring is abutted against the bottom surface of the well cover seat; the cast-in-situ pressure-bearing ring is arranged at the periphery of the metal retainer ring; a medium coarse sand backfill layer, a gravel cushion layer and a concrete pavement layer are sequentially arranged in the inspection well foundation pit from bottom to top; the medium coarse sand backfill layer is laid on the periphery of the shaft, and the top surface of the medium coarse sand backfill layer is flush with the bottom surface of the cast-in-situ pressure bearing ring and the bottom surface of the metal check ring; the gravel cushion layer is laid on the periphery of the cast-in-situ pressure bearing ring; the concrete pavement layer is laid on the periphery of the well cover seat. The utility model discloses effectively avoided plastics pit shaft and well seat directly to bear the axial load on ground and the destruction that causes.
Description
Technical Field
The utility model relates to a rural sewage pipe network plastic inspection well's mounting structure.
Background
Compared with the traditional masonry inspection well and the prefabricated reinforced concrete inspection well, the plastic inspection well is widely applied to rural area construction with limited operation conditions, such as narrow operation space, limited transportation conditions, complex geological conditions and the like, due to the characteristics of light weight, easiness in carrying, convenience in socket connection, good sealing performance, adaptability to uneven settlement of a foundation and the like. However, the axial bearing capacity of the plastic inspection well is only 45-60 KN, and the plastic inspection well cannot meet the load requirements of trunk roads and other driving roads in rural areas after being buried underground, so that the well seat and the shaft of the plastic inspection well under the driving roads are deformed or even broken, which not only causes the waste of construction cost, but also may cause traffic jam and artificial potential safety hazard in the repair process, and therefore, how to ensure the integrity of the plastic inspection well in rural sewage pipeline construction with limited operation conditions is very important.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough defect of plastic inspection well axial bearing capacity under the prior art and provide a rural sewage pipe network plastic inspection well's mounting structure, it has effectively avoided pit shaft and well seat to directly bear the axial load on ground and the destruction that causes ensures that plastic inspection well can effectively be protected in finished product protection and operation maintenance stage homoenergetic.
The purpose of the utility model is realized like this: a mounting structure of a plastic inspection well of a rural sewage pipe network comprises a well seat, a shaft, a well cover seat, a metal retainer ring, a cast-in-situ pressure-bearing ring and an inspection well foundation pit;
the lower end of the well seat is arranged on the bottom plate, the upper end of the well seat is connected with the lower end of the shaft, and a pipeline connector is arranged on the well seat;
the manhole cover and the manhole cover seat are made of cast iron, and the manhole cover is arranged on the manhole cover seat; the well cover seat is arranged at the top of the inspection well foundation pit, so that the top surface of the well cover is flush with the top surface of the inspection well foundation pit;
the well seat and the shaft are arranged in the center of the bottom surface of the inspection well foundation pit, so that the top surface of the shaft is lower than the bottom surface of the well cover seat by a set distance;
the metal retainer ring is sleeved on the outer wall of the top of the shaft, and the top surface of the metal retainer ring is abutted against the bottom surface of the well cover seat;
the cast-in-place pressure-bearing ring is arranged at the periphery of the metal check ring, and the wall thickness of the cast-in-place pressure-bearing ring is 30 cm;
a medium coarse sand backfill layer, a gravel cushion layer and a concrete road structure surface layer are sequentially arranged in the inspection well foundation pit from bottom to top; the medium coarse sand backfill layer is paved on the periphery of the shaft, and the top surface of the medium coarse sand backfill layer is flush with the bottom surface of the cast-in-situ pressure bearing ring and the bottom surface of the metal check ring;
the gravel cushion layer is laid on the periphery of the cast-in-situ pressure bearing ring, and the thickness of the gravel cushion layer is the same as that of the cast-in-situ pressure bearing ring;
the road structure surface layer is cast-in-place concrete, and the road structure surface layer is arranged on the periphery of the well cover seat and has the same thickness as that of the well cover seat.
The mounting structure of the plastic inspection well for the rural sewage pipe network is characterized in that the distance from the top surface of the well shaft to the bottom surface of the well cover seat is 10 cm.
The plastic inspection well mounting structure for the rural sewage pipe network is characterized in that the metal retainer ring is made of strip-shaped metal materials with the length, the width and the thickness of 23cm, 20cm and 0.01cm by winding the strip-shaped metal materials on the periphery of a shaft and then anchoring the strip-shaped metal materials by rivets.
The plastic inspection well mounting structure for the rural sewage pipe network is characterized in that the inspection well foundation pit is an inverted quadrangular frustum pyramid, and each side length of the bottom surface of the inspection well foundation pit is equal and is 60cm larger than the diameter of the shaft.
The utility model discloses a rural sewage pipe network plastics inspection shaft's mounting structure has following characteristics: the shaft of the plastic inspection well is not directly connected with the well cover seat, and the cast-in-situ pressure bearing ring with a certain wall thickness is arranged between the top surface of the shaft and the bottom surface of the well cover seat, so that the direct contact between the shaft of the plastic inspection well and the road surface is avoided, meanwhile, the vertical load from the ground is decomposed into the shear load of the concrete road surface and the residual load acting on the cast-in-situ pressure bearing ring, the residual load acts on the flexible material (medium and coarse sand backfill layer) on the periphery of the plastic inspection well through the cast-in-situ pressure bearing ring, the vertical load is converted into the circumferential load on the periphery of the plastic inspection well through extruding the flexible material, and the ring stiffness of the plastic shaft and the well seat is more than 4KN/m2And the requirement of bearing the annular load can be met. The utility model discloses a change of the very big degree of mounting structure plastics inspection shaft well seat and the atress situation of pit shaft, effectively guaranteed the functional and the integrality of the inspection shaft well body, ensure that the plastics inspection shaft can effectively be protected in finished product protection and operation maintenance stage homoenergetic.
Drawings
Fig. 1 is a vertical view of the mounting structure of the plastic inspection well of the rural sewage pipe network of the utility model.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1, the utility model discloses a mounting structure of rural sewage pipe network plastic inspection well, including well seat (not shown), pit shaft 1, well lid seat 2, well lid 3, inspection well foundation ditch 4, metal retaining ring 5 and cast-in-place pressure-bearing ring 6.
The inner cavity of the inspection well foundation pit 4 is an inverted quadrangular frustum pyramid, and each side length of the bottom surface of the inspection well foundation pit 4 is equal and is 60cm larger than the diameter of the shaft 1.
The well lid 3 and the well lid seat 2 are made of cast iron, and the well lid 3 is arranged on the well lid seat 2.
The well lid seat 2 is arranged at the top of the inspection well foundation pit 4, so that the top surface of the well lid 3 is flush with the top surface of the inspection well foundation pit 4.
The lower end of the well seat is arranged on the bottom plate, the upper end of the well seat is connected with the lower end of the shaft 1, and a pipeline connector is arranged on the well seat.
The well seat and the well shaft 1 are arranged in the center of the bottom surface of the inspection well foundation pit 4, so that the top surface of the well shaft 1 is 10cm lower than the bottom surface of the well cover seat 2.
The metal retainer ring 5 is sleeved on the outer wall of the top of the shaft 1, and the top surface of the metal retainer ring 5 is abutted against the bottom surface of the well cover seat 2; the height of the metal retaining ring 5 is 20cm, so that the distance from the bottom surface of the metal retaining ring 5 to the top surface of the shaft 1 is 10 cm; the metal retainer ring 5 is manufactured by winding a strip-shaped metal material having a length × width × thickness of 230cm × 20cm × 0.1cm around the outer periphery of the well bore 1 and anchoring the metal material with rivets.
The cast-in-place pressure-bearing ring 6 is arranged on the periphery of the metal retainer ring 5, and the wall thickness of the cast-in-place pressure-bearing ring 6 is 30 cm.
A medium coarse sand backfill layer 41, a gravel cushion 42 and a road structure surface layer 43 are sequentially arranged in the inspection well foundation pit 4 from bottom to top; wherein,
the medium coarse sand backfill layer 41 is paved on the periphery of the shaft 1 in a layered mode, and the top surface of the medium coarse sand backfill layer 41 is flush with the bottom surface of the cast-in-situ pressure-bearing ring 6 and the bottom surface of the metal retainer ring 5;
the gravel cushion layer 42 is paved on the periphery of the cast-in-situ pressure-bearing ring 6 and has the same thickness as that of the cast-in-situ pressure-bearing ring 6;
the road structure surface layer 43 is cast-in-place concrete, and the road structure surface layer 43 is arranged on the periphery of the manhole cover seat 2 and has the same thickness as that of the manhole cover seat 2.
The utility model discloses a mounting structure of rural sewage pipe network plastics inspection shaft, the construction procedure is as follows:
1) excavating an inspection well foundation pit 4 according to the diameter of the shaft 1, so that the bottom of the inspection well foundation pit 4 is square and the side length is 60cm larger than the diameter of the shaft 1;
2) placing the well seat and the shaft 1 in the center of the bottom surface of the inspection well foundation pit 4, and enabling the distance between the top surface of the shaft 1 and the top surface (road surface) of the inspection well foundation pit 4 to be 30 cm;
3) laying medium coarse sand layer by layer on the periphery of a well seat and a shaft 1 in the inspection well foundation pit 4 to form a medium coarse sand backfill layer 41 which is 40cm away from the top surface of the shaft 1, and stopping backfilling; manual layered backfilling and tamping are adopted during backfilling, the height of each layer of backfilling is not more than 20cm, and a light tamping mode is adopted for compacting;
4) sleeving a metal retainer ring 5 on the upper part of the shaft 1 to serve as an inner template for pouring a cast-in-situ pressure bearing ring 6;
5) three cuboid battens with the specification of length, width and thickness of 70cm, 2cm and 4cm are placed on the top surface (in the metal retainer ring 5) of the shaft 1 to manufacture a 'meter' -shaped temporary support frame so as to firmly and reliably support the inner mold (the metal retainer ring 5) and ensure that the cast-in-place pressure-bearing ring 6 and the concrete pavement are intact and do not deform in the pouring and vibrating processes;
6) paving a gravel cushion layer 42 on the top surface of the medium coarse sand backfill layer 41 in the inspection well foundation pit 4, and reserving the range of 30cm multiplied by 40cm of the periphery of the metal retainer ring 5 without paving gravel to form a pouring groove of the cast-in-place pressure-bearing ring 6, and stopping paving until the top surface of the gravel cushion layer 42 is 10cm higher than the top surface of the shaft 1;
7) covering the well cover 3 on the internal mold and the temporary support frame, and installing a well cover seat 2 on the top surfaces of the metal retainer ring 5 and the cast-in-situ pressure bearing ring 6;
8) the commercial concrete with excellent mixing ratio and the bending strength and the compressive strength meeting the requirements is slowly and uniformly injected into the pouring groove of the cast-in-place pressure-bearing ring 6, meanwhile, the road structure surface layer 43 is poured on the periphery of the well cover seat 2 in the inspection well foundation pit 4, the poured concrete is vibrated and the vibration is ensured to be in place, and after the concrete strength meets the requirement, the well cover 3 and the temporary support frame are taken off, so that the cast-in-place pressure-bearing ring 6 and the road structure surface layer 43 are integrated, and the well peripheral structure of the high-strength plastic inspection well is formed.
The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.
Claims (4)
1. A mounting structure of a plastic inspection well of a rural sewage pipe network comprises a well seat, a shaft, a well cover seat and an inspection well foundation pit; the lower end of the well seat is arranged on the bottom plate, the upper end of the well seat is connected with the lower end of the shaft, and a pipeline connector is arranged on the well seat; the manhole cover and the manhole cover seat are made of cast iron, and the manhole cover is arranged on the manhole cover seat; the mounting structure is characterized by further comprising a metal check ring and a cast-in-place pressure bearing ring;
the well cover seat is arranged at the top of the inspection well foundation pit, so that the top surface of the well cover is flush with the top surface of the inspection well foundation pit;
the well seat and the shaft are arranged in the center of the bottom surface of the inspection well foundation pit, so that the top surface of the shaft is lower than the bottom surface of the well cover seat by a set distance;
the metal retainer ring is sleeved on the outer wall of the top of the shaft, and the top surface of the metal retainer ring is abutted against the bottom surface of the well cover seat;
the cast-in-place pressure-bearing ring is arranged at the periphery of the metal check ring, and the wall thickness of the cast-in-place pressure-bearing ring is 30 cm;
a medium coarse sand backfill layer, a gravel cushion layer and a concrete road structure surface layer are sequentially arranged in the inspection well foundation pit from bottom to top; the medium coarse sand backfill layer is paved on the periphery of the shaft, and the top surface of the medium coarse sand backfill layer is flush with the bottom surface of the cast-in-situ pressure bearing ring and the bottom surface of the metal check ring;
the gravel cushion layer is laid on the periphery of the cast-in-situ pressure bearing ring, and the thickness of the gravel cushion layer is the same as that of the cast-in-situ pressure bearing ring;
the road structure surface layer is cast-in-place concrete, and the road structure surface layer is arranged on the periphery of the well cover seat and has the same thickness as that of the well cover seat.
2. The rural sewer network plastic inspection well installation structure of claim 1, wherein the distance from the top surface of the shaft to the bottom surface of the well cover seat is 10 cm.
3. The mounting structure of the plastic inspection well of the rural sewer network of claim 1, wherein the metal retainer ring is made of a strip-shaped metal material with the length x the width x the thickness of 23cm x 20cm x 0.01cm, which is wound around the periphery of the shaft and then anchored by rivets.
4. The rural sewer network plastic inspection well installation structure of claim 1, wherein the inspection well foundation pit is an inverted quadrangular frustum pyramid, and each side of the bottom surface of the inspection well foundation pit is equal to and 60cm larger than the diameter of the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021264615.2U CN212866239U (en) | 2020-07-01 | 2020-07-01 | Mounting structure of rural sewage pipe network plastics inspection shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021264615.2U CN212866239U (en) | 2020-07-01 | 2020-07-01 | Mounting structure of rural sewage pipe network plastics inspection shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212866239U true CN212866239U (en) | 2021-04-02 |
Family
ID=75212671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021264615.2U Active CN212866239U (en) | 2020-07-01 | 2020-07-01 | Mounting structure of rural sewage pipe network plastics inspection shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212866239U (en) |
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2020
- 2020-07-01 CN CN202021264615.2U patent/CN212866239U/en active Active
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