CN210797317U - Pipe culvert construction structure on soft foundation - Google Patents
Pipe culvert construction structure on soft foundation Download PDFInfo
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- CN210797317U CN210797317U CN201920742338.2U CN201920742338U CN210797317U CN 210797317 U CN210797317 U CN 210797317U CN 201920742338 U CN201920742338 U CN 201920742338U CN 210797317 U CN210797317 U CN 210797317U
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Abstract
The utility model relates to a pipe culvert construction structures on soft base, including the weak soil road bed and follow supreme block stone bed course, rubble bed course and the medium coarse sand bed course of laying on soft soil road bed in proper order down, laid the pipe culvert on the medium coarse sand bed course, all be equipped with the escape canal on the weak soil road bed of pipe culvert both sides. The utility model has the advantages that: the problem of soft soil roadbed stabilization during pipe culvert construction is solved, and the shear strength, the bearing capacity and the stability of the foundation are improved; compared with the prior art, the utility model has the advantages that: the construction speed is fast, raw materials can be used locally, the construction is convenient and fast, the investment and the land acquisition and removal cost can be greatly reduced, the adjustment, construction and planning and other processes are avoided, the method can be conveniently applied to the construction conditions of soft soil foundations such as silt, mucky soil, silty clay and the like, and the popularization is convenient.
Description
Technical Field
The utility model relates to a municipal works construction technical field especially relates to a pipe culvert construction structures on soft base.
Background
In recent years, the economy of China is rapidly developed, and the municipal engineering construction scale is continuously enlarged. For the newly-built and reconstructed urban road drainage projects, the difficulty of drainage system construction is higher due to the complex urban underground structure, and particularly the difficulty of drainage system construction is increased in the construction of soft soil roadbeds.
The precast concrete pipe culvert is a common culvert structure form of a newly-built drainage system, and generally meets soft soil roadbeds such as silt, mucky soil, silty clay and saturated soil in the construction of the pipe culvert of municipal drainage engineering, and the soft soil roadbeds have the characteristics of low shear strength, poor stability and bearing capacity and the like, need to treat the foundations during construction, possibly reduce the quality of the pipe culvert construction and roads thereon if the soft soil roadbeds are not treated or are not treated properly, and possibly have safety quality accidents if the quality is serious.
In the prior art, a method of a backfill method, a compaction method, drainage pipe culvert diversion and the like is generally adopted to solve the problem that a soft soil foundation is encountered during the construction of a drainage pipe culvert in a drainage project, and in the actual construction process, because foundation treatment methods such as the backfill method and the like need a large amount of backfill materials, the problems of high construction cost, high construction difficulty, high environmental protection pressure and the like exist; the method for changing the drainage pipe culvert line relates to the problems of planning change, land acquisition removal and the like, and has great limitation in the prior art by comprehensive consideration.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a pipe culvert construction structure on soft base is provided to overcome not enough among the above-mentioned prior art.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a pipe culvert construction structures on soft foundation, includes the soft soil roadbed and from supreme block stone bed course, rubble bed course and the medium coarse sand bed course of laying in proper order on soft soil roadbed down, has laid the pipe culvert on the medium coarse sand bed course, all is equipped with the escape canal on the soft soil roadbed of pipe culvert both sides.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
In the scheme, the water collecting wells are arranged in the drainage ditch at preset intervals.
In the scheme, the distance between two adjacent water collecting wells in the drainage ditch is 20-50 m.
In the scheme, the thickness of the stone block cushion layer is 300-800 mm.
In the scheme, the thickness of the gravel cushion layer is 150-300 mm.
The utility model has the advantages that: the problem of soft soil roadbed stabilization during pipe culvert construction is solved, and the shear strength, the bearing capacity and the stability of the foundation are improved; compared with the prior art, the utility model has the advantages that: the construction speed is high, raw materials can be used locally, the construction is convenient and quick, the investment and the land acquisition and removal cost can be greatly reduced, the adjustment of the flow such as construction planning and the like is avoided, the method can be conveniently applied to the construction conditions of soft soil foundations such as silt, mucky soil, silty clay and the like, and the popularization is convenient; the reason that the coarse sand bed course supported the pipe culvert in the adoption lies in that the pipe culvert has the joint, and the coarse sand bed course guarantees that pipe shaft and joint position easily place the construction in setting to guarantee pipe shaft and joint position and bed course fully contact.
Drawings
Figure 1 is the utility model discloses a structural schematic of pipe culvert construction structure on soft base.
In the drawings, the components represented by the respective reference numerals are listed below:
1. soft soil roadbed, 2, block stone cushion layer, 3, broken stone cushion layer, 4, medium coarse sand cushion layer, 5, pipe culvert, 6, drainage ditch, 7 and water collecting well.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1, a pipe culvert construction structure on soft foundation, when implementing, carry out the full section excavation to soft soil roadbed 1, the construction of table clearing and the clearance construction of soft soil roadbed 1 are accomplished in the segmentation, then from the supreme piece stone bed course 2, rubble bed course 3 and medium-coarse sand bed course 4 of laying in proper order down on soft soil roadbed 1, and all be provided with the escape canal 6 that is used for drainage when constructing on the soft soil roadbed 1 of pipe culvert 5 both sides, set up sump pit 7 according to the interval of predetermineeing in escape canal 6, under the ordinary condition, the interval of adjacent two sump pits 7 in the escape canal 6 is 20m, rubble bed course 3 thickness is preferably 150mm, the thickness of piece stone bed course 2 is preferably 300 mm.
Example 2
As shown in fig. 1, a pipe culvert construction structure on soft foundation, when implementing, carry out the full section excavation to soft soil roadbed 1, the construction of table clearing and the clearance construction of soft soil roadbed 1 are accomplished in the segmentation, then from the supreme piece stone bed course 2, rubble bed course 3 and medium-coarse sand bed course 4 of laying in proper order down on soft soil roadbed 1, and all be provided with the escape canal 6 that is used for drainage when constructing on the soft soil roadbed 1 of pipe culvert 5 both sides, set up sump pit 7 according to the interval of predetermineeing in escape canal 6, under the ordinary condition, the interval of adjacent two sump pits 7 in the escape canal 6 is 20m, rubble bed course 3 thickness is preferred 300mm, the thickness of piece stone bed course 2 is preferred 800 mm.
Example 3
As shown in fig. 1, a pipe culvert construction structure on soft foundation, when implementing, carry out full section excavation to soft soil roadbed 1, the construction of table cleaning and the clearance construction of soft soil roadbed 1 are accomplished in the segmentation, then from the supreme piece stone bed course 2, rubble bed course 3 and medium-coarse sand bed course 4 of laying in proper order down on soft soil roadbed 1, and all be provided with the escape canal 6 that is used for drainage when constructing on the soft soil roadbed 1 of pipe culvert 5 both sides, set up sump pit 7 according to the interval of predetermineeing in escape canal 6, under normal conditions, the interval of adjacent two sump pits 7 in the escape canal 6 is 20m, rubble bed course 3 thickness is preferred 200mm, the thickness of piece stone bed course 2 is preferred 550 mm.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (5)
1. The utility model provides a pipe culvert construction structures on soft foundation, its characterized in that includes soft soil roadbed (1) and from supreme block stone bed course (2), rubble bed course (3) and well coarse sand bed course (4) of laying on soft soil roadbed (1) in proper order down, well coarse sand bed course (4) are gone up and are laid pipe culvert (5) all be equipped with escape canal (6) on soft soil roadbed (1) of pipe culvert (5) both sides.
2. A culvert construction structure on a soft foundation according to claim 1, characterized in that water collecting wells (7) are provided at predetermined intervals in the drainage ditches (6).
3. The culvert construction structure on the soft foundation according to claim 2, wherein the distance between two adjacent water collecting wells (7) in the drainage ditch (6) is 20-50 m.
4. The pipe culvert construction structure on soft foundation according to claim 1, 2 or 3, characterized in that the thickness of the rock block cushion layer (2) is 300 mm-800 mm.
5. A culvert construction structure on soft foundation according to claim 1, 2 or 3, characterized in that the thickness of said gravel cushion (3) is 150 mm-300 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920742338.2U CN210797317U (en) | 2019-05-22 | 2019-05-22 | Pipe culvert construction structure on soft foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920742338.2U CN210797317U (en) | 2019-05-22 | 2019-05-22 | Pipe culvert construction structure on soft foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210797317U true CN210797317U (en) | 2020-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920742338.2U Active CN210797317U (en) | 2019-05-22 | 2019-05-22 | Pipe culvert construction structure on soft foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210797317U (en) |
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2019
- 2019-05-22 CN CN201920742338.2U patent/CN210797317U/en active Active
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