CN220102278U - Connecting pipe construction structure for connecting pipe point of raw water engineering in narrow space - Google Patents
Connecting pipe construction structure for connecting pipe point of raw water engineering in narrow space Download PDFInfo
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- CN220102278U CN220102278U CN202321437535.6U CN202321437535U CN220102278U CN 220102278 U CN220102278 U CN 220102278U CN 202321437535 U CN202321437535 U CN 202321437535U CN 220102278 U CN220102278 U CN 220102278U
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- pipe
- raw water
- steel cylinder
- pipeline
- well
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000010276 construction Methods 0.000 title claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 76
- 239000010959 steel Substances 0.000 claims abstract description 76
- 210000001503 joint Anatomy 0.000 claims abstract description 22
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 9
- 239000002689 soil Substances 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a connection construction structure for a connection point of raw water engineering in a narrow space, which comprises a raw water pipeline to be connected buried underground, wherein a steel cylinder well is adopted as a connection point construction well position of the raw water pipeline to be connected, and the distance between the bottom of the steel cylinder well and the pipeline to be connected is P; a three-way steel pipe connected with a raw water pipeline incision to be connected is arranged in the steel cylinder well, one joint of the three-way steel pipe is a flange manhole, the steel cylinder well is provided with a straight line calandria butt joint, the three-way steel pipe is provided with a straight line calandria butt joint pipeline penetrating through the straight line calandria butt joint of the steel cylinder well, and the straight line calandria butt joint pipeline comprises a first elbow connected with the three-way steel pipe, a first inclined pipe connected with the first elbow and a second elbow connected with the first inclined pipe; the newly-built valve well is provided with the straight line buried pipe that extends to the steel cylinder well, and the straight line buried pipe is connected with the second elbow of straight line calandria butt joint pipeline. The utility model can finish raw water connection pipe work in a narrow space, and can efficiently finish construction operation requirements without being limited by a narrow place.
Description
Technical Field
The utility model relates to the technical field of municipal administration, in particular to a connecting pipe construction structure for a connecting pipe point of raw water engineering in a narrow space.
Background
The outdoor construction can meet the influence of various environments and spaces, key infrastructures such as oil pipelines and the like appear on site, the site cannot be widened while the key infrastructures need to be avoided, the situation is that the construction site of the pipe connection cannot be extruded in a small space, the traditional construction scheme cannot be adopted, and the pipe connection operation is completed under the condition that the small-range excavation is not influenced by peripheral adverse factors.
Disclosure of Invention
The utility model aims to provide a connection pipe construction structure for a connection pipe point of raw water engineering in a narrow space.
In order to solve the technical problems, the embodiment of the utility model provides a connection construction structure for a connection point of raw water engineering in a narrow space, which comprises a raw water pipeline (1) to be connected buried underground, wherein a steel cylinder well (2) is adopted as a connection point construction well position of the raw water pipeline to be connected, and the distance between the bottom of the steel cylinder well and the pipeline to be connected is P;
a three-way steel pipe (3) connected with a raw water pipeline incision to be connected is arranged in the steel cylinder well, one joint of the three-way steel pipe (3) is a flange manhole (3 a), the steel cylinder well is provided with a straight line calandria butt joint, the three-way steel pipe (3) is provided with a straight line calandria butt joint pipeline penetrating through the straight line calandria butt joint of the steel cylinder well, and the straight line calandria butt joint pipeline comprises a first elbow (4) connected with the three-way steel pipe, a first inclined pipe (5) connected with the first elbow and a second elbow (6) connected with the first inclined pipe;
the newly-built valve well (7) is provided with a straight buried pipe (8) extending to the steel cylinder well, and the straight buried pipe is connected with a second elbow of the straight calandria butt joint pipeline.
Further, a row of external facility protection isolation piles are arranged at the position of the foundation pit N meters.
Further, the wall thickness of the steel cylinder adopted by the steel cylinder well is 35mm.
Furthermore, the steel cylinder well is formed by assembling a plurality of sections of steel cylinders, and adjacent steel cylinders are connected by welding.
Further, the steel cylinder bottom of steel cylinder well is provided with zigzag structure.
Further, the value of P is 180-250mm.
Furthermore, a soil body reinforcing structure is arranged at the connecting pipe point at the raw water pipeline (1) to be connected.
Backfill in a steel cylinder well can be laid in layers, the single layer height can be selected to be 20cm, and a structure strengthening net, such as a carbon fiber net, can be laid between layers.
The utility model has the following beneficial effects: the utility model can finish raw water connection pipe work in a narrow space, and can efficiently finish construction operation requirements without being limited by a narrow place.
The utility model can also protect key infrastructure near the site and avoid unnecessary economic losses such as damage to nearby facilities caused by construction.
Drawings
Fig. 1 is a schematic view of a pipe connection construction structure for a pipe connection point of a raw water project in a small space according to a first embodiment of the present utility model.
Fig. 2 is a schematic view of a pipe connection construction structure for a pipe connection point of a raw water project in a small space according to a second embodiment of the present utility model.
Fig. 3 is a schematic view of a pipe connection construction structure for a pipe connection point of a raw water project in a small space according to a third embodiment of the present utility model.
Detailed Description
The utility model is further described in connection with the following embodiments in order to make the technical means, the creation features, the achievement of the purpose and the effect of the utility model easy to understand.
The first embodiment of the utility model provides a connection construction structure for a connection point of raw water engineering in a narrow space, which is shown in fig. 1, and comprises a raw water pipeline 1 to be connected buried underground, wherein DN1800 (mm) raw water steel pipes from a north-south pump station are arranged at the bottom of the connection point of the embodiment, the elevation of the center of the pipe is-5.20 m, a steel cylinder well 2 is adopted at the connection point construction well position of the raw water pipeline to be connected, a phi 3590 (mm) steel cylinder well is adopted, the inner diameter of the steel cylinder well is larger than the outer diameter of the raw water steel pipes, a pipe shaking method is adopted for construction, the wall thickness of the steel cylinder is 35mm, the length of each section is 2.0m, the total length is 9m, the materials are Q235B steel, the steel cylinders are connected in a welding mode, the lower part of the steel cylinder is cut into a saw-tooth shape, and the tooth depth is 10cm. The distance from the bottom of the steel cylinder well to the pipeline to be connected is P, and the value of P is 180-250mm, for example P=200mm. In fig. 1, the position of the steel cylinder well with the height of 4.2m is the ground position, preferably, the steel cylinder well can be about 10-20cm higher than the ground, so that the situation that the steel cylinder well is flush with the ground and the ground objects are easy to fall into the well is avoided, the part leaking out of the ground can be cut after the steel cylinder well operation is completed (including backfilling operation) and kept flush with the ground, the adjustment is carried out according to the field, and note that the part outside the steel cylinder well in fig. 1 does not show the soil body, so that the drawing is required (the soil body is not excavated, and the steel cylinder well is directly downwards arranged at the preset position above the raw water pipeline).
It can be seen in fig. 1 that a three-way steel pipe 3 connected with a raw water pipeline incision to be connected is arranged in the steel cylinder well, one joint of the three-way steel pipe 3 is a flange manhole 3a, the flange manhole can be plugged after construction is completed, the steel cylinder well is provided with a straight line calandria butt joint, the butt joint is formed by cutting, the three-way steel pipe 3 is provided with a straight line calandria butt joint pipeline penetrating through the straight line calandria butt joint of the steel cylinder well, and the straight line calandria butt joint pipeline comprises a first elbow 4 connected with the three-way steel pipe, a first inclined pipe 5 connected with the first elbow and a second elbow 6 connected with the first inclined pipe. The newly-built valve well 7 is provided with the sharp buried pipe 8 that extends to the steel cylinder well, sharp buried pipe is connected with the second elbow of sharp calandria butt joint pipeline, and the straight calandria butt joint pipeline that passes steel cylinder well notched can outside cladding rubber protective sheath.
The construction process of the utility model is as follows:
1. taking over preconditions:
1) The shaking pipe well is completed, the MJS reinforcement is cured in place, earthwork in the well is excavated, and the welding position of the old pipe joint is positioned by drawing lines;
2) The valve shaft is newly built until the straight line pipe burying of the swing pipe steel casing is completed, the valve is installed, and the valve is normally opened and closed;
3) A hole is formed at the joint of the steel casing and the buried pipe, so that the elbow can be installed;
4) Two 45-degree bent pipes and a 2.08m straight pipe are welded on site in advance.
2. And (3) connecting pipe construction:
1) And coordinating related enterprises (rights units) to close valves and cut off water for one pipeline (raw water pipeline).
2) The drainage well at the middle 3 parts of the old pipe is utilized for pressure relief and drainage, and the drainage well can be searched for pressure relief and drainage according to the design of the raw water pipeline.
3) And hoisting and welding the tee joint pipe on the old pipe, namely the raw water pipeline.
4) And integrally hoisting the elbow pipe, initially connecting the elbow pipe with the buried pipe and the connecting pipe, and performing spot welding fixation on the elbow pipe and the buried pipe after the connecting pipe is connected by utilizing the horse plate.
5) Dismantling the expansion joint in the valve well, allowing personnel to enter the buried pipe to weld the lower bevel of the elbow, and allowing the 800 manhole to enter the ceramic liner for connecting the pipe to post the elbow weld joint.
6) After the welding lines on two sides of the elbow are finished, the DN1800 old pipe (raw water pipeline) is cut and holed, the slope is repaired and polished, and the pipe cutting waste is transported out of the manhole.
7) And carrying out nondestructive testing after each welding line is finished, and constructing inner and outer anti-corrosion construction at a welding joint and a cutting hole after the detection is qualified.
8) And after the working procedures are completed, the installation of the expansion joint is resumed, and the manhole of the flange is plugged.
The backfilling of earthwork in the steel pile casing is carried out under the condition that the construction of the external pipeline of the raw water pipeline is completed, and the steel pile casing cannot be disassembled and reserved.
The subsurface portion of fig. 1 is only schematically shown, for example, although the subsurface portion of fig. 1 performs a structural reinforcement operation, only the reinforcement soil near the raw water pipe is shown.
The second embodiment of the present utility model provides a take-over construction structure for a take-over point of raw water engineering in a small space, which is different from the first embodiment in that a row of external facility protection isolation piles are provided at a foundation pit N meter (m).
Referring to fig. 2, the value of n is selected according to the need, for example, the distance 1461m from the construction point (only one exemplary data is needed to select corresponding dimensions according to different construction projects) is provided with the oil pipeline K, and at this time, a row of protection isolation piles P for the oil pipeline may be disposed at the oil pipeline 677m at the construction point, so as to avoid the influence of the construction on the oil pipeline. The protective isolation piles are distributed in a straight shape from the ground to 10.4m downwards.
The third embodiment of the present utility model provides a pipe connection construction structure for a pipe connection point of a raw water project in a narrow space, which is different from the first embodiment in that, referring to fig. 3, a steel cylinder well is 20cm lower than the ground after backfilling, backfill soil M is filled into the steel cylinder well, and thus the whole construction environment can be better fused with the site.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the utility model and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.
Claims (7)
1. The connecting pipe construction structure for the connecting pipe point of the raw water project in a narrow space comprises a raw water pipeline (1) to be connected buried underground, and is characterized in that a steel cylinder well (2) is adopted as a connecting pipe point construction well position of the raw water pipeline to be connected, and the distance between the bottom of the steel cylinder well and the pipeline to be connected is P;
a three-way steel pipe (3) connected with a raw water pipeline incision to be connected is arranged in the steel cylinder well, one joint of the three-way steel pipe (3) is a flange manhole (3 a), the steel cylinder well is provided with a straight line calandria butt joint, the three-way steel pipe (3) is provided with a straight line calandria butt joint pipeline penetrating through the straight line calandria butt joint of the steel cylinder well, and the straight line calandria butt joint pipeline comprises a first elbow (4) connected with the three-way steel pipe, a first inclined pipe (5) connected with the first elbow and a second elbow (6) connected with the first inclined pipe;
the newly-built valve well (7) is provided with a straight buried pipe (8) extending to the steel cylinder well, and the straight buried pipe is connected with a second elbow of the straight calandria butt joint pipeline.
2. The pipe connection construction structure for a pipe connection point of a small-space raw water project according to claim 1, wherein a row of external facility protection isolation piles are arranged at the position of the foundation pit of N meters.
3. The pipe connection construction structure for a pipe connection point of a small-space raw water project according to claim 1, wherein a steel cylinder wall thickness adopted by the steel cylinder well is 35mm.
4. The pipe connection construction structure for a pipe connection point of a raw water project in a narrow space according to claim 1 or 3, wherein the steel cylinder well is assembled by adopting a plurality of sections of steel cylinders, and adjacent steel cylinders are connected by adopting welding.
5. The take-over construction structure for a take-over point of a small-space raw water project according to claim 1 or 3, wherein a steel cylinder bottom of the steel cylinder well is provided with a serration structure.
6. The take-over construction structure for a take-over point of a small-space raw water project according to claim 1, wherein the value of P is 180-250mm.
7. The takeover construction structure for a takeover point of a small-space raw water project according to claim 1, wherein the takeover point at the raw water pipeline (1) to be connected is provided with a soil body reinforcing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321437535.6U CN220102278U (en) | 2023-06-07 | 2023-06-07 | Connecting pipe construction structure for connecting pipe point of raw water engineering in narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321437535.6U CN220102278U (en) | 2023-06-07 | 2023-06-07 | Connecting pipe construction structure for connecting pipe point of raw water engineering in narrow space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220102278U true CN220102278U (en) | 2023-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321437535.6U Active CN220102278U (en) | 2023-06-07 | 2023-06-07 | Connecting pipe construction structure for connecting pipe point of raw water engineering in narrow space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220102278U (en) |
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2023
- 2023-06-07 CN CN202321437535.6U patent/CN220102278U/en active Active
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