CN219137740U - Adjustable support protection device for sensitive pipeline in foundation pit - Google Patents
Adjustable support protection device for sensitive pipeline in foundation pit Download PDFInfo
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- CN219137740U CN219137740U CN202222913432.4U CN202222913432U CN219137740U CN 219137740 U CN219137740 U CN 219137740U CN 202222913432 U CN202222913432 U CN 202222913432U CN 219137740 U CN219137740 U CN 219137740U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000001012 protector Effects 0.000 description 7
- 239000002689 soil Substances 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model relates to the technical field of foundation pit engineering and discloses an adjustable support protection device for sensitive pipelines in a foundation pit, which comprises a foundation pit, wherein an H-shaped steel column is fixedly arranged in the foundation pit, a channel steel beam is fixedly arranged at the top of the H-shaped steel column, H-shaped steel stringers are fixedly arranged on two sides of the top of the channel steel beam, a concrete protection body is arranged above the channel steel beam, a plurality of uniformly distributed sensitive pipelines are arranged in the concrete protection body, two jacks are symmetrically arranged at the top of the channel steel beam, and the movable ends of the two jacks are fixedly connected with the bottom of the concrete protection body. The utility model uses the supporting device arranged below the sensitive pipeline to support the sensitive pipeline, and can adjust the jack at any time according to the strain monitoring result of the sensitive pipeline to reduce the uneven deformation of the pipeline, thereby achieving the purpose of effectively protecting the sensitive pipeline.
Description
Technical Field
The utility model relates to the technical field of foundation pit engineering, in particular to an adjustable support protection device for a sensitive pipeline in a foundation pit.
Background
With the development of urban underground space, foundation pit engineering is increasingly complex. In particular, the foundation pit is excavated downwards in old urban areas and areas with relatively mature development, various pipelines under the ground are generally required to be changed, and the work occupies a large amount of engineering construction time and obviously improves engineering construction cost. Still, some pipelines are not allowed to be interrupted and changed due to special use functions, such as high-pressure gas pipelines special for large enterprises, high-voltage or ultrahigh-voltage trunk power transmission cables and the like. These pipelines are characterized by being relatively sensitive to deformation, and once the pipeline is broken by large deformation, serious engineering accidents are caused, and even serious personnel and property losses are caused. In-situ protection of sensitive underground pipelines is therefore a significant technical challenge in current foundation pit engineering construction.
The spatial relationship between the sensitive pipeline and the foundation pit is various, wherein the situation that the pipeline is positioned in the excavation range and is parallel or nearly parallel to the edge of the foundation pit is the most troublesome, and because the overlapping range of the sensitive pipeline and the foundation pit is long at this time, the factors causing the uneven deformation of the pipeline are more, and serious accidents can be caused by a little carelessness. In the existing in-situ protection scheme of the sensitive pipeline, the support protection is most common, such as a support beam or a bailey frame, and a cross beam support is arranged. However, existing solutions and devices currently lack corrective action for the pipeline deformation or the corrective approach is difficult to implement.
Disclosure of Invention
The utility model aims to solve the problem that the conventional sensitive pipeline support protection is difficult to adjust, and provides an adjustable support protection device for a sensitive pipeline in a foundation pit.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides an adjustable support protection device of sensitive pipeline in foundation ditch, includes the foundation ditch, the inside of foundation ditch is fixed to be equipped with H type steel column, the fixed channel-section steel crossbeam that is equipped with in top of H type steel column, the top both sides of channel-section steel crossbeam are all fixed and are equipped with H type steel longeron, the top of channel-section steel crossbeam is equipped with the concrete protection body, the inside of concrete protection body is equipped with a plurality of evenly distributed's sensitive pipeline, two jacks are installed to the top symmetry of channel-section steel crossbeam, two the removal end of jack all with the bottom fixed connection of concrete protection body.
Preferably, the H-shaped steel longitudinal beam and the channel steel cross beam are fixedly connected through a first bolt, and a square gasket is arranged between the H-shaped steel longitudinal beam and the channel steel cross beam.
Preferably, the bottom of the jack is fixedly arranged at the top of the channel steel beam through a second bolt, the movable end of the jack is fixedly provided with a supporting plate, and the supporting plate is fixedly connected with the concrete protection body through a third bolt.
Preferably, strain gauge groups are fixedly arranged on two sides of the top and two sides of the bottom of the concrete protection body.
Preferably, the H-shaped steel columns and the channel steel beams are arranged in a group at regular intervals.
Preferably, the jack is a scissor jack.
Compared with the prior art, the utility model provides the adjustable support protection device for the sensitive pipeline in the foundation pit, which has the following beneficial effects:
the adjustable support protection device for the sensitive pipeline in the foundation pit supports the sensitive pipeline and the concrete protection body through the support protection system, has a simple structural form and does not influence the operation in the foundation pit; setting jacks at all supporting points at the bottom of the concrete protection body, and adjusting the vertical position of the concrete protection body by the jacks, so as to reduce the vertical uneven deformation and the horizontal uneven deformation of the sensitive pipeline; and the non-uniform deformation of the pipeline is automatically regulated based on the strain monitoring result, so that the method is convenient to implement and quick in response.
The device has the advantages that the parts which are not involved in the device are the same as or can be realized by adopting the prior art, the supporting device arranged below the sensitive pipeline is used for supporting the sensitive pipeline, and the jack can be adjusted at any time according to the strain monitoring result of the sensitive pipeline so as to realize the reduction of the uneven deformation of the pipeline, thereby achieving the purpose of effectively protecting the sensitive pipeline.
Drawings
FIG. 1 is a schematic diagram of an adjustable support protection device for sensitive pipelines in a foundation pit;
fig. 2 is an enlarged view of the structure of the portion a in fig. 1.
In the figure: 1. h-shaped steel column; 2. a channel beam; 3. h-shaped steel longitudinal beams; 4. a jack; 5. a concrete protector; 6. sensitive pipelines; 7. a first bolt; 8. a square gasket; 9. a second bolt; 10. a supporting plate; 11. a third bolt; 12. a strain gauge set; 13. a foundation pit.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-2, an adjustable support protection device for sensitive pipelines in foundation pit comprises a foundation pit 13, an H-shaped steel column 1 (the model HW400 is 400 in section, the model HW is 414mm in height, the model HW is 405mm in width, the middle wall thickness is 18mm, the upper and lower plate thicknesses are 28 mm) is fixedly arranged in the interior of the foundation pit 13, a channel steel beam 2 (the model HW is 30B in section, the model HW is 300mm in height, the leg length is 87mm, the waist thickness is 9.5 mm), a group of the H-shaped steel column 1 and the channel steel beam 2 are arranged at certain intervals, the interval is variable, the distance is determined by pipeline rigidity and allowable displacement values together, the interval is 8.5m, H-shaped steel stringers 3 are fixedly arranged on two sides of the top of the channel steel beam 2, a concrete protection body 5 is arranged above the channel steel beam 2, a plurality of evenly distributed sensitive pipelines 6 are arranged in the interior of the channel steel beam 5, strain gauge groups 12 are fixedly arranged on two sides of the top and two sides of the bottom of the concrete protection body 5, the two jacks 4 are fixedly arranged at the top of the jack 4, and the jack 4 is fixedly connected with the jack 4 at the top of the jack 4 at the highest jack 4, and the jack 4 is fixedly arranged at the jack 4, and the jack 4 is at the highest height is at the jack 4, and the jack 4 is at the jack 4.
The H-shaped steel longitudinal beam 3 and the channel steel cross beam 2 are fixedly connected through a first bolt 7, and a square gasket 8 is arranged between the H-shaped steel longitudinal beam 3 and the channel steel cross beam 2.
The bottom of jack 4 is fixed through second bolt 9 and is set up in the top of channel-section steel crossbeam 2, and the fixed layer board 10 that is equipped with of mobile end of jack 4, and through third bolt 11 fixed connection between layer board 10 and the concrete protection body 5, first bolt 7, second bolt 9 and third bolt 11 all adopt high strength bolt, and model M20, diameter 20 millimeters, big diameter 18.38 millimeters, external screw thread path 17.3 millimeters, the pitch is 2.5 millimeters.
In the utility model, the using steps are as follows:
1) Driving an H-shaped steel column 1 at 40cm positions around a distance sensitive pipeline 6, wherein the upper part of the H-shaped steel column 1 is connected with an H-shaped steel longitudinal beam 3 by adopting a first bolt 7, and a square gasket 8 is arranged in the middle;
2) If the concrete protection body 5 is arranged around the sensitive pipeline 6, foundation pits 13 at the top and at the two sides of the concrete protection body 5 are directly dug, and a transverse channel capable of accommodating the bottom channel steel beam 2 to pass through is dug at the bottom of the concrete protection body 5; if the concrete protection body 5 is not arranged around the sensitive pipeline 6, a manual soil digging method is adopted to carefully dig out soil around the sensitive pipeline 6 with low disturbance and reliably temporarily support the pipeline, the concrete protection body 5 is poured around the sensitive pipeline 6 by a formwork, and a transverse channel capable of accommodating the bottom channel steel beam 2 and the jack 5 is dug out at the bottom of the concrete protection body 5 after the curing age is reached;
3) The supporting plate 10 is fixedly connected with the jack 5 through a third bolt 11, the jack 5 is fixedly connected with the channel steel beam 2 through a second bolt 9, and an assembly of the supporting plate, the jack 5 and the channel steel beam passes through a transverse channel in soil at the bottom of the concrete protection body 5;
4) The channel steel beam 2 is connected with the H-shaped steel 3 by adopting a first bolt 7 to form a rigid frame;
5) Strain gauge groups 12 are fixedly arranged on the two sides of the top and the two sides of the bottom of the concrete protection body 5, and the arrangement interval is the same as that of the channel steel cross beam 2;
6) Digging out soil below the bottom surface of the concrete protector 5 along with the excavation of the foundation pit 13;
7) Along with the excavation of the soil body, the concrete protector 5 starts to deform along with the sensitive pipeline 6 inside the concrete protector, the left half part of the concrete protector 5 is vertically deformed by the strain gauge group 12 on the left side of the top and the strain gauge group 12 on the left side of the bottom surface, the right half part of the concrete protector 5 is vertically deformed by the strain gauge group 12 on the right side of the top and the strain gauge group 12 on the right side of the bottom surface, the jacks 5 corresponding to the positions with large dynamic adjustment deformation control the vertical uneven deformation, the horizontal deformation of the concrete protector 5 is calculated by the strain gauge group 12 on the left side of the top and the strain gauge group 12 on the right side of the top, and the jacks 5 corresponding to the positions with large dynamic adjustment deformation are reduced to reduce the horizontal uneven deformation.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides an adjustable support protection device of sensitive pipeline in foundation ditch, includes foundation ditch (13), its characterized in that, the inside of foundation ditch (13) is fixed and is equipped with H shaped steel post (1), the fixed channel-section steel crossbeam (2) that are equipped with in top of H shaped steel post (1), the top both sides of channel-section steel crossbeam (2) are all fixed and are equipped with H shaped steel longeron (3), the top of channel-section steel crossbeam (2) is equipped with concrete protection body (5), the inside of concrete protection body (5) is equipped with a plurality of evenly distributed's sensitive pipeline (6), two jack (4) are installed to the top symmetry of channel-section steel crossbeam (2), two the removal end of jack (4) all with the bottom fixed connection of concrete protection body (5).
2. The adjustable support protection device for the sensitive pipeline in the foundation pit according to claim 1, wherein the H-shaped steel longitudinal beam (3) and the channel steel cross beam (2) are fixedly connected through a first bolt (7), and a square gasket (8) is arranged between the H-shaped steel longitudinal beam (3) and the channel steel cross beam (2).
3. The adjustable support protection device for the sensitive pipeline in the foundation pit according to claim 1, wherein the bottom of the jack (4) is fixedly arranged at the top of the channel steel cross beam (2) through a second bolt (9), a supporting plate (10) is fixedly arranged at the moving end of the jack (4), and the supporting plate (10) is fixedly connected with the concrete protection body (5) through a third bolt (11).
4. An adjustable support protection device for sensitive pipelines in foundation pit according to claim 1, characterized in that strain gauge sets (12) are fixedly arranged on both sides of the top and the bottom of the concrete protection body (5).
5. An adjustable support protection device for sensitive pipelines in foundation pits according to claim 1, wherein the H-shaped steel columns (1) and the channel steel beams (2) are arranged in groups at regular intervals.
6. An adjustable support protection device for sensitive pipelines in foundation pits according to claim 1, characterized in that the jack (4) is a scissor jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222913432.4U CN219137740U (en) | 2022-11-03 | 2022-11-03 | Adjustable support protection device for sensitive pipeline in foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222913432.4U CN219137740U (en) | 2022-11-03 | 2022-11-03 | Adjustable support protection device for sensitive pipeline in foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219137740U true CN219137740U (en) | 2023-06-06 |
Family
ID=86599269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222913432.4U Active CN219137740U (en) | 2022-11-03 | 2022-11-03 | Adjustable support protection device for sensitive pipeline in foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219137740U (en) |
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2022
- 2022-11-03 CN CN202222913432.4U patent/CN219137740U/en active Active
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