CN220352902U - A assembled protective structure for underground pipe line reforms transform - Google Patents
A assembled protective structure for underground pipe line reforms transform Download PDFInfo
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- CN220352902U CN220352902U CN202322031461.2U CN202322031461U CN220352902U CN 220352902 U CN220352902 U CN 220352902U CN 202322031461 U CN202322031461 U CN 202322031461U CN 220352902 U CN220352902 U CN 220352902U
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- precast concrete
- cover plate
- concrete retaining
- protective structure
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- 230000001681 protective effect Effects 0.000 title claims abstract description 17
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to an assembled protective structure for reconstruction of an underground pipeline, which is characterized by comprising a reserved base for supporting the bottom of the underground pipeline, wherein precast concrete retaining walls are arranged on two sides of the reserved base, a precast cover plate is arranged above the precast concrete retaining walls, middle coarse sand is filled between the lower pipeline and the precast concrete retaining walls and between the lower pipeline and the precast cover plate, and displacement detection devices are arranged in the precast concrete retaining walls and in the precast cover plate. The utility model has strong protection capability, can effectively bear various loads from road surfaces above municipal important pipelines, and can detect the displacement condition of the structure at any time. The occupied area of the working face is small, the construction process is simple, and the construction of the assembly type components meets the requirements of green and environment protection in cities. And a displacement sensor is arranged in the protective structure, so that the state of municipal functional facilities can be formed into dynamic data, the dynamic data are guided into the cloud for monitoring, and the safety of municipal important pipelines is analyzed and protected through a big data platform.
Description
Technical Field
The utility model belongs to the technical field of underground pipeline reconstruction facilities, and particularly relates to an assembled protection structure for underground pipeline reconstruction.
Background
Along with the development of cities, road reconstruction and expansion projects are increasing. The various pipelines which are not moved at the two sides of the original road are affected by the road widening and are positioned below the projection range of the widened road. In order to protect the above-mentioned pipeline (such as high-pressure gas pipeline in particular) from being extruded by vertical load, a safe, reliable, simple structure and quick construction protection structure is urgently needed. Besides, the modified pipelines are required to be monitored in real time so as to discover and confirm the abnormality of the pipelines in time and prevent serious consequences caused by pipeline breakage.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an assembled protection structure for the transformation of an underground pipeline, which is used for protecting municipal pipelines from being extruded by vertical loads and monitoring the municipal pipelines in key positions for a long time so as to give an alarm in time when sedimentation occurs.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an assembled protective structure for underground pipe line reforms transform, including the reservation base that is used for supporting the underground pipe line bottom, the both sides of reservation base are equipped with precast concrete barricade, the top of precast concrete barricade is equipped with prefabricated apron, the pipeline with in the bottom with pack coarse sand between precast concrete barricade, the prefabricated apron, be equipped with displacement detection device in precast concrete barricade and the prefabricated apron.
Waterproof coiled materials with two-cloth three-coating waterproof layers are paved outside the prefabricated concrete retaining wall and the prefabricated cover plate, waterproof clay layers with the thickness of at least 20cm are filled on two sides of the waterproof coiled materials, and C30 fine stone concrete protection layers with the thickness of at least 20cm are poured on the tops of the waterproof coiled materials.
Adjacent precast concrete retaining walls are connected through water stopping screws.
The top of precast concrete barricade is equipped with the pedestal, the both ends of precast apron are erect respectively in the pedestal, precast concrete barricade with precast apron junction is through pitch burlap joint.
The displacement detection device comprises a side wall displacement sensor which is arranged in the middle of the precast concrete retaining wall and used for measuring the horizontal displacement of the deformation joint, and a top plate displacement sensor which is arranged in the center of the precast cover plate and used for measuring the vertical displacement of the deformation joint.
Advantageous effects
The assembled pipeline protection structure disclosed by the utility model has strong protection capability, can effectively bear various loads from road surfaces above municipal important pipelines, and can detect the displacement condition of the structure at any time. The occupied area of the working face is small, the construction process is simple, and the construction of the assembly type components meets the requirements of green and environment protection in cities. And a displacement sensor is arranged in the protective structure, so that the state of municipal functional facilities can be formed into dynamic data, the dynamic data are guided into the cloud for monitoring, and the safety of municipal important pipelines is analyzed and protected through a big data platform.
Drawings
Fig. 1 is a plan view of an assembled protective structure for use in the reconstruction of an underground pipeline.
Fig. 2 is a perspective view of a fabricated protective structure for use in the retrofit of an underground utility line.
Wherein, 1-reserving a base; 2-prefabricating a concrete retaining wall; 3-prefabricating a cover plate; 4-middle coarse sand; 5-a top plate displacement sensor; 6-a side wall displacement sensor; 7-underground pipeline.
Detailed Description
The utility model will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present utility model, and such equivalents are intended to fall within the scope of the claims appended hereto.
As shown in fig. 1, the utility model provides an assembled protective structure for the reconstruction of an underground pipeline, which comprises a reserved base 1 for supporting the bottom of the underground pipeline 7, wherein precast concrete retaining walls 2 are arranged on two sides of the reserved base 1, a precast cover plate 3 is arranged above the precast concrete retaining walls 2, middle coarse sand 4 is filled between the lower pipeline and the precast concrete retaining walls 2 and between the lower pipeline and the precast cover plate 3, and displacement detection devices are arranged in the precast concrete retaining walls 2 and the precast cover plate 3.
The prefabricated base, the prefabricated concrete retaining wall 2 and the prefabricated cover plate 3 are all fixed in width, and a plurality of prefabricated parts can be adjacently arranged according to the length of the pipeline and are mutually connected through water stop screws so as to protect the underground pipeline 7 in the whole process. And constructing the precast concrete retaining wall 2 and the precast cover plate 3 to form a culvert.
In order to prevent water leakage on the ground, the utility model also carries out waterproof treatment on the whole protective structure, waterproof coiled materials with two waterproof layers and three waterproof layers are paved outside the precast concrete retaining wall 2 and the precast cover plate 3, waterproof clay layers with the thickness of at least 20cm are filled on two sides of the waterproof coiled materials, and C30 fine stone concrete protective layers with the thickness of at least 20cm are poured on the tops of the waterproof coiled materials. The top of precast concrete barricade 2 is equipped with the pedestal, erect respectively at precast apron 3's both ends in the pedestal, precast concrete barricade 2 with precast apron 3 junction is through pitch burlap joint.
The displacement detection device comprises a side wall displacement sensor 6 which is arranged in the middle of the precast concrete retaining wall 2 and used for measuring the horizontal displacement of the deformation joint, and a top plate displacement sensor 5 which is arranged in the center of the precast cover plate 3 and used for measuring the vertical displacement of the deformation joint. Each displacement sensor is connected with a terminal splice closure arranged on the outer side of the protective structure through a pre-buried circuit, so that the displacement sensor is convenient to check in real time.
In one embodiment, a mound with a soil reservation height of 500-1000 mm below the pipeline is used as a reservation base 1 (a support body with a quadrangular cross section) to support the pipeline pressure. The two end covers of the prefabricated cover plate 3 form a portal structure on the prefabricated reinforced concrete retaining wall, and the thickness of the cushion layer is 100mm; the thickness of the base is 500mm; the net height of the two side protection structures is 1400-1800 mm, the thickness is 600-850 mm, and the thickness of the letter board is 400-600 mm. The distance between the protection structure and the two sides of the heavy pipeline is 1000-1500 mm, and the horizontal load on the two sides of the pipeline is born; a box plate is arranged 500-800 mm above the pipeline, and medium coarse sand 4 with the grain diameter of 2.3-3 mm is backfilled in the protective structure before the box plate is installed. The side wall displacement sensors 6 on the two sides are arranged at the positions 1000-1500 mm away from the letter plate on the side wall of the protective structure.
The construction flow of this particular embodiment is as follows. And determining the position of an important pipeline or an optical cable by excavation of a probe: according to a line diagram provided by a pipeline enterprise, performing on-site measurement and positioning, marking an approximate line position, paving lime powder for marking, confirming the position of a pipeline by adopting a mode of manually excavating a detection ditch, and excavating a detection pit every 10 meters at a position 1 meter away from the pipeline side line until the trend of a natural gas pipeline and an optical cable is completely clear; and (3) earth excavation: when the trend of the pipeline is found out and accepted, the foundation is fully excavated, the foundation pit is excavated to be inclined in a 1:1 mode, if a hardened retaining wall exists in the range of the foundation pit, the foundation pit is excavated to the retaining wall, and in order to facilitate later-stage steel bar binding and template installation, each side of the foundation pit is widened by about 1m according to the size of a design drawing; pipeline flaw detection: the method comprises pipeline flaw detection and foundation bearing capacity detection; and (3) foundation construction: the part below the reserved pipeline is used as a reserved base 1 during foundation pit excavation, or prefabricated components which are customized and qualified in factories are transported to the site and placed below the pipeline; construction of a prefabricated retaining wall body: the prefabricated concrete retaining wall 2 qualified in factory customization is transported to the site and is arranged at two sides of the reserved base 1; and (3) prefabricating and installing a cover plate: the prefabricated cover plate 3 is prefabricated in blocks in a prefabricated field, the thickness of a concrete reinforcing steel bar protection layer is 50mm, after manufacturing and maintenance are completed according to the requirement, the prefabricated cover plate 3 is transported to the field for hoisting, the size of the prefabricated cover plate 3 is 4.1 x 0.4m x 1m, the dead weight of the prefabricated cover plate 3 is about 4.1t, the processing and manufacturing of the cover plate reinforcing steel bars are completed in the prefabricated field, the cover plate reinforcing steel bars are subjected to lofting and blanking according to a design drawing, the steel bar framework is strictly bent according to the number, the size and the shape of the design drawing, the steel bar framework is manufactured according to the design, single-sided welding is adopted, the length of a welding seam is not less than 10d, the welding seam is full, other technical requirements are strictly regulated, the concrete label used by the cover plate structure is C30, the model of reinforcing steel bars for bearing and lifting lugs is HRB400, the balance reinforcing steel bars are HPB300, the lifting lugs are subjected to the same model steel bars subjected to corrosion prevention treatment and are welded on a main bar in a pre-buried mode, the pedestal is flat, a certain pre-arch degree is not reserved according to the requirement when necessary; installing a prefabricated cover plate 3: in the installation process, the hoisting height of the prefabricated cover plate 3 is not more than 20cm from the top surface of the culvert platform, and joints between two sides of the prefabricated cover plate 3 and the pedestal are filled with asphalt hemp ribs; backfilling the bench back: after culvert construction is completed, symmetrically tamping and backfilling in layers in a range that the two sides of the culvert body are larger than twice the aperture, detecting the compactness of the culvert body, filling the backfilling material with medium coarse sand 4, manually matching with machinery to perform backfilling, tamping the closer part to the culvert with small-sized machinery, and compacting the farther part with a road roller; filling roadbed on the top surface of the culvert: the concrete can be carried out after the strength of the body-containing concrete reaches 100%, and when the thickness of the covering soil at the top of the hole is less than 1m, heavy machinery is stopped from passing through. After construction, fine sand is adopted for backfilling, the compactness is not less than 90%, small-sized mechanical compaction can be adopted for the pipe top more than 0.5m, and the backfilling part compactness meets the requirement of corresponding ground on the compactness.
Claims (5)
1. The utility model provides an assembled protective structure for underground pipe transformation, its characterized in that, including reserve base (1) that is used for supporting underground pipe (7) bottom, the both sides of reserving base (1) are equipped with precast concrete barricade (2), the top of precast concrete barricade (2) is equipped with precast cover board (3), underground pipe with be full of well coarse sand (4) between precast concrete barricade (2), precast cover board (3), be equipped with displacement detection device in precast concrete barricade (2) and the precast cover board (3).
2. The assembled protective structure for the reconstruction of the underground pipeline according to claim 1, wherein waterproof coiled materials with two-layer three-coating waterproof layers are paved outside the prefabricated concrete retaining wall (2) and the prefabricated cover plate (3), waterproof clay layers with the thickness of at least 20cm are filled on two sides of the waterproof coiled materials, and C30 fine stone concrete protective layers with the thickness of at least 20cm are poured on the tops of the waterproof coiled materials.
3. The assembled protective structure for the reconstruction of underground pipelines according to claim 1, wherein adjacent precast concrete retaining walls (2) are connected by water stop screws.
4. The assembled protection structure for the reconstruction of the underground pipeline according to claim 1, wherein a pedestal is arranged above the precast concrete retaining wall (2), two ends of the precast cover plate (3) are respectively erected in the pedestal, and the joint of the precast concrete retaining wall (2) and the precast cover plate (3) is filled with asphalt hemp bars.
5. The assembled protective structure for the reconstruction of the underground pipeline according to claim 1, wherein the displacement detection device comprises a side wall displacement sensor (6) which is arranged in the middle of the precast concrete retaining wall (2) and is used for measuring the horizontal displacement of the deformation joint, and a top plate displacement sensor (5) which is arranged in the center of the precast cover plate (3) and is used for measuring the vertical displacement of the deformation joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322031461.2U CN220352902U (en) | 2023-07-31 | 2023-07-31 | A assembled protective structure for underground pipe line reforms transform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322031461.2U CN220352902U (en) | 2023-07-31 | 2023-07-31 | A assembled protective structure for underground pipe line reforms transform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220352902U true CN220352902U (en) | 2024-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322031461.2U Active CN220352902U (en) | 2023-07-31 | 2023-07-31 | A assembled protective structure for underground pipe line reforms transform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220352902U (en) |
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2023
- 2023-07-31 CN CN202322031461.2U patent/CN220352902U/en active Active
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