CN211735505U - Existing pipeline protection reinforced structure in river course excavation uninstallation scope - Google Patents
Existing pipeline protection reinforced structure in river course excavation uninstallation scope Download PDFInfo
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- CN211735505U CN211735505U CN201922224527.3U CN201922224527U CN211735505U CN 211735505 U CN211735505 U CN 211735505U CN 201922224527 U CN201922224527 U CN 201922224527U CN 211735505 U CN211735505 U CN 211735505U
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Abstract
The utility model discloses an existing pipeline protection reinforced structure in river course excavation uninstallation scope, include: constructing a soil body reinforcing layer which is arranged at the bottom of the riverway to be renovated and is positioned in the riverway excavation unloading range; the weight pressing cover plate is arranged on the soil body reinforcing layer; a plurality of rows of rigid pile foundations which are arranged in the soil body below the excavation unloading range of the river channel at intervals and are positioned at two sides of the existing pipeline; and a flood prevention retaining wall which is arranged on the ballast cover plate and is positioned at the river mouth. The utility model discloses an existing pipeline of river course engineering construction period and operation period provides safeguard measure, does not influence the existing pipeline of wearing down when guaranteeing river course renovation engineering implementation.
Description
Technical Field
The utility model relates to a water conservancy river regulation engineering technical field especially relates to an existing pipeline protection reinforced structure in river course excavation uninstallation scope.
Background
With the rapid development of urban construction, a large number of river channels are newly or sparsely developed in an urban area, the foundation stress is greatly reduced due to the excavation and unloading of the river channels, the existing pipelines are possibly damaged due to upward floating deformation of the pipeline buried below the river through, and certain reinforcement and protection measures are required to be adopted for the existing pipelines during the river channel excavation in order to ensure the safe operation of the existing pipelines. To this end, the applicant has sought, through useful research and research, a solution to the above-mentioned problems, in the context of which the technical solutions to be described below have been made.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: aiming at the defects of the prior art, the existing pipeline protection and reinforcement structure in the unloading range of the river channel excavation is provided.
The utility model discloses the technical problem that will solve can adopt following technical scheme to realize:
an existing pipeline protection reinforced structure in river course excavation unloading scope includes:
constructing a soil body reinforcing layer which is arranged at the bottom of the riverway to be renovated and is positioned in the riverway excavation unloading range;
the weight pressing cover plate is arranged on the soil body reinforcing layer;
a plurality of rows of rigid pile foundations which are arranged in the soil body below the excavation unloading range of the river channel at intervals and are positioned at two sides of the existing pipeline; and
and constructing a flood prevention retaining wall which is arranged on the ballast cover plate and is positioned at the river mouth.
In a preferred embodiment of the present invention, the soil body reinforcing layer is a mixing pile, a jet grouting pile or a compaction grouting.
In a preferred embodiment of the present invention, the reinforcement range of the soil body reinforcement layer is located above the existing pipeline, and the structure safety determination of the existing pipeline is not affected by the reinforcement construction.
In a preferred embodiment of the present invention, the ballast cover plate is a reinforced concrete plate or a steel plate.
In a preferred embodiment of the present invention, the structure of the ballast cover plate is determined by combining the design section pattern of the river channel, and the ballast cover plate is separately unloaded to the design height within the protection range of the existing pipeline.
In a preferred embodiment of the present invention, the rigid pile foundation is a non-earth-squeezing bored concrete pile or an underground continuous wall.
In a preferred embodiment of the present invention, each row of rigid pile foundations is spaced from the existing pipeline by a certain distance, without affecting the structural safety of the existing pipeline.
In a preferred embodiment of the present invention, the upper end of each row of rigid pile foundations is rigidly connected to the ballast cover plate after passing through the soil body reinforcing layer, and the lower end of each row of rigid pile foundations extends vertically to a position below the existing pipeline.
In a preferred embodiment of the utility model, flood prevention barricade and ballast apron monolithic pouring.
In a preferred embodiment of the utility model, the wall top elevation of flood prevention barricade is confirmed according to the river flood prevention requirement.
Due to the adoption of the technical scheme, the beneficial effects of the utility model reside in that:
1. the utility model provides protection measures for the existing pipelines in the construction period and the operation period of the river channel engineering, and ensures that the existing pipelines which are worn downwards are not influenced while the implementation of the river channel renovation engineering is ensured;
2. the utility model adopts the weight cover plate and the rigid pile foundation to jointly inhibit the deformation of the existing pipeline, thereby effectively protecting the structural safety of the existing pipeline;
3. the utility model discloses a ballast apron effectively protects river bed and bank slope, avoids the river course to erode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic sectional structure view in one direction of the present invention.
Fig. 2 is a schematic sectional structure view in another direction of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Referring to fig. 1 and 2, the existing pipeline protection and reinforcement structure in the unloading range of river channel excavation is shown, and comprises a soil body reinforcement layer 100, a ballast cover plate 200, a plurality of rows of rigid pile foundations 300 and a flood control retaining wall 400.
The soil body reinforcing layer 100 is constructed at the bottom of the riverway 10 to be regulated and is positioned in the riverway excavation unloading range, the reinforcing range is positioned above the existing pipeline 20, and the structural safety determination of the existing pipeline 20 is not influenced by the reinforcing construction. In this embodiment, the soil reinforcing layer 100 is preferably a mixing pile, a jet grouting pile, or a compaction grouting.
The ballast cover plate 200 is disposed on the soil reinforcing layer 100, and its structure is determined by combining the design section type of the river channel, and is implemented after the soil is unloaded to the design elevation in the protection range of the existing pipeline 20. In this embodiment, the ballast cover plate 200 is preferably a reinforced concrete plate or a steel plate,
and a plurality of rows of rigid pile foundations 300 are arranged in the soil body below the unloading range of the river channel excavation at intervals and are positioned on two sides of the existing pipeline 20. Each row of rigid pile foundations 300 is at a distance from the existing pipeline 20, and the structural safety of the existing pipeline 20 is not affected. Specifically, each row of rigid pile foundations 300 is rigidly connected to the ballast cover plate 200 at its upper end after passing through the soil reinforcement layer 100, and extends vertically to a position below the existing pipeline 20 at its lower end. In the present embodiment, the rigid pile foundation 300 is preferably a non-earth-extruded cast-in-place pile or an underground continuous wall.
The flood control retaining wall 400 is constructed on the ballast cover plate 200 and is positioned at the river mouth. The flood prevention retaining wall 400 and the ballast cover plate 200 are integrally cast. The wall top elevation of the flood prevention retaining wall 400 is determined according to the river flood prevention requirement.
The utility model discloses an existing pipeline protection reinforced structure's in river course excavation uninstallation within range work progress as follows:
1. before the river course 10 is planned to be treated, a soil body reinforcing layer 100 is adopted to reinforce an upper soil layer in the protection range of the existing pipeline 20, the reinforcing plane range is the range of influence of unloading on the existing pipeline 20, and the reinforcing depth is determined specifically by the structural safety that the reinforcing construction does not influence the existing pipeline 20;
2. the rigid pile foundation 300 is constructed, the rigid pile foundation 300 is positioned at two sides of the existing pipeline 20 and is away from the existing pipeline 20 by a certain distance so as not to influence the structural safety of the existing pipeline;
3. carrying out layered excavation on the riverway 10 to be regulated, sequentially carrying out soil unloading in a strip manner along the direction vertical to water flow, immediately implementing a ballast cover plate 200 after each strip is excavated to a design elevation, and determining the structure of the ballast cover plate 200 by combining the design section type of the riverway;
4. a flood prevention retaining wall 400 is constructed at the position of the river mouth line on the ballast cover plate 200, and the flood prevention requirements of the river are met.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an existing pipeline protection reinforced structure in river course excavation unloading scope which characterized in that includes:
constructing a soil body reinforcing layer which is arranged at the bottom of the riverway to be renovated and is positioned in the riverway excavation unloading range;
the weight pressing cover plate is arranged on the soil body reinforcing layer;
a plurality of rows of rigid pile foundations which are arranged in the soil body below the excavation unloading range of the river channel at intervals and are positioned at two sides of the existing pipeline; and
and constructing a flood prevention retaining wall which is arranged on the ballast cover plate and is positioned at the river mouth.
2. The existing pipeline protection and reinforcement structure in the unloading range of river channel excavation of claim 1, wherein the soil body reinforcing layer is a mixing pile, a jet grouting pile or a compaction grouting.
3. The protection and reinforcement structure for the existing pipeline within the unloading range of the river channel excavation according to claim 2, wherein the reinforcement range of the soil reinforcement layer is located above the existing pipeline, and the structure safety determination of the existing pipeline is not influenced by the reinforcement construction.
4. The existing pipeline protection and reinforcement structure in the unloading range of river channel excavation of claim 1, wherein the ballast cover plate is a reinforced concrete plate or a steel plate.
5. The protection and reinforcement structure for the existing pipelines in the unloading range of the river channel excavation as claimed in claim 4, wherein the structure of the ballast cover plate is determined by combining the design section type of the river channel, and the protection and reinforcement structure is implemented after the soil is unloaded to the design elevation in the protection range of the existing pipelines.
6. The existing pipeline protection and reinforcement structure in the unloading range of river channel excavation according to claim 1, wherein the rigid pile foundation is a non-earth-squeezing cast-in-place pile or an underground continuous wall.
7. The existing pipeline protection and reinforcement structure in the unloading range of river channel excavation according to claim 6, wherein each row of rigid pile foundations is at a certain distance from the existing pipeline, and the structural safety of the existing pipeline is not affected.
8. The existing pipeline protection and reinforcement structure for use in the offloading range of river excavation of claim 7, wherein each row of rigid pile foundations has an upper end passing through the soil reinforcement layer and rigidly connected to the ballast cover plate, and a lower end extending vertically to a position below the existing pipeline.
9. The existing pipeline protection and reinforcement structure in the unloading range of river channel excavation according to claim 1, wherein the flood prevention retaining wall is integrally cast with the ballast cover plate.
10. The existing pipeline protection and reinforcement structure in the unloading range of river channel excavation according to claim 9, wherein the elevation of the top of the flood prevention retaining wall is determined according to the flood prevention requirement of the river channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922224527.3U CN211735505U (en) | 2019-12-12 | 2019-12-12 | Existing pipeline protection reinforced structure in river course excavation uninstallation scope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922224527.3U CN211735505U (en) | 2019-12-12 | 2019-12-12 | Existing pipeline protection reinforced structure in river course excavation uninstallation scope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211735505U true CN211735505U (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922224527.3U Active CN211735505U (en) | 2019-12-12 | 2019-12-12 | Existing pipeline protection reinforced structure in river course excavation uninstallation scope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211735505U (en) |
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2019
- 2019-12-12 CN CN201922224527.3U patent/CN211735505U/en active Active
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