CN219992541U - Municipal administration inspection shaft well body structure - Google Patents
Municipal administration inspection shaft well body structure Download PDFInfo
- Publication number
- CN219992541U CN219992541U CN202321361092.7U CN202321361092U CN219992541U CN 219992541 U CN219992541 U CN 219992541U CN 202321361092 U CN202321361092 U CN 202321361092U CN 219992541 U CN219992541 U CN 219992541U
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- China
- Prior art keywords
- well
- shaft
- cast
- body structure
- situ
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- 238000007689 inspection Methods 0.000 title claims abstract description 19
- 238000011065 in-situ storage Methods 0.000 claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 229910001141 Ductile iron Inorganic materials 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 13
- 238000009434 installation Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 239000004570 mortar (masonry) Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to a municipal inspection well body structure, belongs to the technical field of building construction, and solves the problems that an existing nodular cast iron well lid is easy to settle, long in maintenance time, easy to be disturbed by site in the maintenance process after the well lid is installed, and the like. The utility model comprises a cast-in-situ shaft and a well cover, wherein the well cover is arranged at the well mouth of the cast-in-situ shaft; the well ring of the well lid is fixed on the cast-in-situ shaft through expansion bolts, and a group of steel cushion blocks are respectively arranged at the positions of two sides of each expansion bolt, and are supported between the bottom surface of the well ring and the top surface of the cast-in-situ shaft. The municipal inspection well body has scientific and reasonable structure, high installation quality, low construction cost and more firm well lid installation, improves the construction efficiency and saves the construction period.
Description
Technical Field
The utility model belongs to the technical field of building construction, and particularly relates to a well body structure, in particular to a municipal inspection well body structure.
Background
In urban municipal rainwater and sewage diversion road reconstruction, the installation and construction of the spheroidal graphite cast iron well lid are more in common, the traditional installation method of the spheroidal graphite cast iron well lid is low in construction efficiency, road surface diseases around the well lid are common, and the quality defects of cracks, edge rot, staggered unevenness and the like around the inspection well are particularly overcome. After the defects are secondarily repaired, the construction cost is increased, and the formed repair patch seriously influences the beautiful appearance of the road.
Traditional nodular cast iron well lid installation adopts shop thick liquid leveling, and mortar strength and mortar plumpness directly influence nodular cast iron well lid construction quality, and this kind of well lid fixed mode has following shortcoming:
1) When the mortar below the well cover is thicker, the well cover is easy to sink.
2) Mortar strength is slowly improved, curing time is long, and the mortar is easily interfered by site construction to generate cracks so as to lose bearing capacity to the well cover.
3) When the gap mortar of the well lid is filled with the non-filled gaps and is larger, the mortar is easy to be damaged by stress, and the well lid is loosened to cause cracking around the well lid.
Disclosure of Invention
The utility model aims to solve the problems that the existing nodular cast iron manhole cover is easy to settle, the maintenance time is long, the manhole cover is easy to loosen due to field interference in the maintenance process after the manhole cover is installed, and the like, and provides a municipal inspection manhole body structure.
The utility model is realized by the following technical scheme:
a municipal inspection well body structure comprises a cast-in-situ well shaft and a well cover, wherein the well cover is arranged at the well mouth of the cast-in-situ well shaft; the well ring of the well lid is fixed on the cast-in-situ shaft through expansion bolts, and a group of steel cushion blocks are respectively arranged at the positions of two sides of each expansion bolt, and are supported between the bottom surface of the well ring and the top surface of the cast-in-situ shaft.
Furthermore, the gap between the well cover and the cast-in-situ shaft is filled with early-strength micro-expansion grouting material.
Further, the well body structure further comprises a prefabricated well shaft, the prefabricated well shaft is located below the cast-in-situ well shaft, and the cast-in-situ well shaft is arranged at the top of the prefabricated well shaft.
Further, the well ring is fixed with the cast-in-situ shaft through three expansion bolts which are uniformly distributed.
Further, each group of steel cushion blocks comprises two identical right-angle inclined cushion blocks, and the two right-angle inclined cushion blocks are stacked up and down in a mode of pasting inclined surfaces.
Further, the distance between each set of steel spacer blocks and the corresponding expansion bolts was 50mm.
Further, the overall dimensions of the steel spacer were 100mm long, 40mm wide and 20mm thick.
Further, an expansion bolt with a length of 150mm and a diameter of 12mm is adopted as the expansion bolt.
Furthermore, the well cover adopts a nodular cast iron well cover.
In the municipal inspection well body structure, the steel cushion block is supported near the expansion bolts, and plays roles in adjusting the level, aligning, vibration prevention, vibration reduction and the like, so that the well lid is firmer under the action of the steel cushion block and the expansion bolts, and the well lid cannot be loosened due to on-site construction interference; the void ratio of the well lid and the cast-in-situ shaft gap is smaller after the early strength micro-expansion grouting material is filled, a good whole can be formed after the well lid and the periphery of the well lid are poured simultaneously, and the well body structure is firmer due to the fact that higher strength can be achieved in a short time.
The municipal inspection well body has scientific and reasonable structure, high installation quality, low construction cost and more firm well lid installation, improves the construction efficiency and saves the construction period.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic diagram of the overall structure of the well structure of the present utility model after construction.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
FIG. 3 is a top view of the well structure of the present utility model.
FIG. 4 is a schematic view of a steel spacer in the well structure of the present utility model.
In the figure: 1-prefabricated shaft, 2-cast-in-situ shaft, 3-well cover, 4-gravel layer, 5-early strength micro-expansion grouting material, 6-expansion bolts, 7-steel cushion blocks, 8-right angle inclined cushion blocks and 9-asphalt surface layer.
Detailed Description
For a better understanding of the present utility model, reference will be made to the following description of the utility model taken in conjunction with the accompanying drawings and examples. The features of the embodiments and examples of the present utility model may be combined with each other without any conflict.
A municipal inspection well body structure, as shown in fig. 1-4, comprises a prefabricated well shaft 1, a cast-in-situ well shaft 2 and a well cover 3.
The prefabricated shaft 1 is arranged in the gravel layer 4, the cast-in-situ shaft 2 is arranged at the top of the prefabricated shaft 1 and supported on the gravel layer 4, the well cover 3 is a nodular cast iron well cover 3 and is arranged at the well mouth of the cast-in-situ shaft 2, and the gap between the well cover 3 and the cast-in-situ shaft 2 is filled with early-strength micro-expansion grouting material 5.
The well ring of the well cover 3 is fixed on the cast-in-situ shaft 2 through three expansion bolts 6 which are uniformly distributed, and the expansion bolts 6 are expansion bolts with the length of 150mm and the diameter of 12 mm; a group of steel cushion blocks 7 are respectively arranged at the positions of two sides of each expansion bolt 6, and the steel cushion blocks 7 are supported between the bottom surface of the well ring and the top surface of the cast-in-situ shaft 2; each group of steel cushion blocks 7 comprises two identical right-angle inclined cushion blocks 8, as shown in fig. 4, the two right-angle inclined cushion blocks 8 are stacked up and down in a manner of pasting inclined planes, namely, the two right-angle inclined cushion blocks 8 are completely aligned up and down to form a rectangular square, the overall dimensions of the steel cushion blocks 7 are 100mm long, 40mm wide and 20mm thick, and the distance between each group of steel cushion blocks 7 and the corresponding expansion bolts 6 is 50mm.
When the well body structure is installed, the well cover 3 is leveled, padded and not swayed by finely adjusting the stacking position of the steel cushion blocks 7, and then the well cover 3 is fixed by using expansion screws; after the inner side of the gap between the well cover 3 and the cast-in-situ shaft 2 is supported, the gap between the well cover 3 and the cast-in-situ shaft 2 is filled with the early-strength micro-expansion grouting material 5, and the early-strength micro-expansion grouting material and the periphery of the well cover 3 are integrally molded and poured to be flush with the top surface of the lower bearing layer of the asphalt surface layer 9.
The load born by the well lid 3 in the well body structure is uniformly and downwards transferred to the cast-in-situ well shaft 2 through the steel cushion block 7 and the early-strength micro-expansion grouting material 5, so that the fatigue damage generated by the filling material between the well lid 3 and the cast-in-situ well shaft 2 is reduced, and the installation quality of the well lid 3 is improved.
The above examples illustrate only a preferred embodiment of the utility model, which is described in more detail and is not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (9)
1. A municipal administration inspection shaft well body structure, its characterized in that: the well cover is arranged at a well mouth of the cast-in-situ shaft; the well ring of the well lid is fixed on the cast-in-situ shaft through expansion bolts, and a group of steel cushion blocks are respectively arranged at the positions of two sides of each expansion bolt, and are supported between the bottom surface of the well ring and the top surface of the cast-in-situ shaft.
2. The municipal inspection shaft well body structure according to claim 1, wherein: the gap between the well cover and the cast-in-situ shaft is filled with early-strength micro-expansion grouting material.
3. The municipal inspection shaft well body structure according to claim 2, wherein: the system also comprises a prefabricated shaft, wherein the prefabricated shaft is positioned below the cast-in-situ shaft, and the cast-in-situ shaft is arranged at the top of the prefabricated shaft.
4. A municipal manhole body structure according to any of claims 1-3, wherein: the well ring is fixed with the cast-in-situ shaft through three expansion bolts which are uniformly distributed.
5. The municipal inspection shaft well body structure according to claim 4, wherein: each group of steel cushion blocks comprises two identical right-angle inclined cushion blocks, and the two right-angle inclined cushion blocks are stacked up and down in a mode that inclined planes are attached to each other.
6. The municipal inspection shaft well body structure according to claim 5, wherein: the distance between each group of steel cushion blocks and the corresponding expansion bolts is 50mm.
7. The municipal inspection shaft well body structure according to claim 6, wherein: the overall dimensions of the steel spacer were 100mm long, 40mm wide and 20mm thick.
8. The municipal inspection shaft well body structure according to claim 7, wherein: the expansion bolts are phi 12mm expansion bolts 150mm long.
9. The municipal inspection shaft well body structure according to claim 8, wherein: the well cover adopts a nodular cast iron well cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321361092.7U CN219992541U (en) | 2023-05-31 | 2023-05-31 | Municipal administration inspection shaft well body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321361092.7U CN219992541U (en) | 2023-05-31 | 2023-05-31 | Municipal administration inspection shaft well body structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219992541U true CN219992541U (en) | 2023-11-10 |
Family
ID=88607735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321361092.7U Active CN219992541U (en) | 2023-05-31 | 2023-05-31 | Municipal administration inspection shaft well body structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219992541U (en) |
-
2023
- 2023-05-31 CN CN202321361092.7U patent/CN219992541U/en active Active
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