CN219825324U - Single-row cofferdam structure for revetment construction of river-facing concrete filling pile under uninterrupted navigation - Google Patents
Single-row cofferdam structure for revetment construction of river-facing concrete filling pile under uninterrupted navigation Download PDFInfo
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- CN219825324U CN219825324U CN202320582194.5U CN202320582194U CN219825324U CN 219825324 U CN219825324 U CN 219825324U CN 202320582194 U CN202320582194 U CN 202320582194U CN 219825324 U CN219825324 U CN 219825324U
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- 238000010276 construction Methods 0.000 title claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 239000002689 soil Substances 0.000 claims abstract description 21
- 239000004575 stone Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a single-row cofferdam structure for river-facing concrete bored pile revetment construction under uninterrupted navigation, which comprises the following components: the fender post is a Larson steel sheet pile, the fender post is arranged along the length direction of the river bank, and a plurality of stiffening ribs which are arranged at intervals along the length direction of the river bank are formed on the inner side of the fender post, which is back to the river center; the enclosing purlin component is arranged at the upper end of the enclosing pile; the backfill comprises a gravel layer and a plain soil layer, wherein the gravel layer is laid at the river bottom of the inner side of the fender pile, and the plain soil layer is laid on the gravel layer. The utility model solves the problems of low construction efficiency and great influence on the passage of a channel by adopting the traditional double-row steel sheet pile cofferdam in river-crossing operation.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a single-row cofferdam structure for construction of a river-facing concrete bored concrete pile revetment under uninterrupted navigation.
Background
At present, double-row steel sheet pile cofferdam is basically adopted in river-along wading operation, namely, two steel sheet pile cofferdams are firstly constructed at the river-along side, a shoreside construction area is separated from a water system, water between a river bank and sheet piles is drained or filled with soil to serve as a platform, and then filling pile construction is carried out.
The traditional method has the disadvantages of large steel sheet pile consumption, low construction efficiency, no construction condition on site, more occupied river space, influence on the passage of the channel and incapability of completing the navigation evaluation work of the local channel main department.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
In order to overcome the defects existing in the prior art, a single-row cofferdam structure for construction of a river-facing concrete bored pile revetment under uninterrupted navigation is provided, so that the problems that the construction efficiency is low and the influence on the passage of a channel is large due to the fact that a traditional double-row steel sheet pile cofferdam is adopted in river-along wading operation are solved.
In order to achieve the above-mentioned purpose, provide a face river concrete filled pile revetment construction single bank cofferdam under incessant navigation structure, include:
the fender post is a Larson steel sheet pile, the fender post is arranged along the length direction of the river bank, and a plurality of stiffening ribs which are arranged at intervals along the length direction of the river bank are formed on the inner side of the fender post, which is back to the river center;
the enclosing purlin component is arranged at the upper end of the enclosing pile;
the backfill comprises a gravel layer and a plain soil layer, wherein the gravel layer is laid at the river bottom of the inner side of the fender pile, and the plain soil layer is laid on the gravel layer.
Further, the thickness of the crushed stone layer is 2m.
Further, the purlin assembly includes:
the pile pressing plates are respectively attached to the inner side and the outer side of the fender post;
and the opposite pulling piece is tied between the two pile pressing plates.
Further, the upper portion of the fender post and the pile pressing plate are respectively provided with a perforation, two ends of the opposite pulling piece are respectively provided with external threads, the opposite pulling piece is arranged on the upper portion of the fender post in a penetrating mode and in the perforation of the pile pressing plate in a penetrating mode, two ends of the opposite pulling piece are respectively provided with a threaded piece in a threaded mode, and the threaded piece is pressed against the outer side of the pile pressing plate.
Further, stiffening flanges are formed on two opposite sides of the pile pressing plate.
The utility model has the beneficial effects that the single-row cofferdam structure for the river-facing concrete filling pile revetment construction under the uninterrupted navigation condition can be used for river-facing construction under the uninterrupted navigation condition, and can be used as a single-row steel sheet pile cofferdam system of a construction platform by filling soil. The single-row cofferdam structure for the revetment construction of the river-facing concrete bored concrete pile under uninterrupted navigation is convenient to construct, the steel sheet pile is relatively small in dosage and stable in structure, the requirement of filling soil on the inner side as a construction platform can be met, the influence on the passage of a channel is small, and compared with the existing construction method, the construction cost is effectively reduced.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural diagram of a single-row cofferdam structure for construction of a river-facing concrete bored pile revetment under uninterrupted navigation according to an embodiment of the utility model.
Fig. 2 is a schematic structural diagram of an end portion of a single-row cofferdam structure for constructing a river-facing concrete bored pile revetment under uninterrupted navigation according to an embodiment of the present utility model.
Fig. 3 is a cross-sectional view of a single-row cofferdam structure for river-facing concrete bored pile revetment construction under uninterrupted navigation according to an embodiment of the present utility model.
Fig. 4 is a partially enlarged schematic view at a in fig. 3.
Fig. 5 is a top view of an enclosure assembly according to an embodiment of the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 5, the utility model provides a single-row cofferdam structure for construction of a river-facing concrete bored pile revetment under uninterrupted navigation, which comprises a fender pile 1, a surrounding purlin assembly 2 and a backfill 3.
Wherein the fender pile 1 is a Larson steel sheet pile. The fender post 1 is arranged along the length direction of the river bank. A plurality of stiffening ribs 11 are formed on the inner side of the fender post 1 facing away from the river center and are arranged at intervals along the length direction of the river bank.
The enclosing purlin assembly 2 is mounted at the upper end of the enclosure pile 1.
As a preferred embodiment, the purlin surrounding assembly 2 includes two staking plates 21 and a counter-pull 22. Two pile pressing plates 21 are respectively attached to the inner side and the outer side of the fender pile 1. The opposite pulling piece 22 is tied between the two pile pressing plates 21.
The upper part of the fender post 1 and the pile pressing plate 21 are respectively provided with perforations. External threads are formed at both ends of the opposite pull member 22, respectively. The counter pull 22 is provided in the upper part of the fender post 1 and in the perforation of the pile pressing plate 21. The opposite ends of the pull-up member 22 are respectively screwed with screw members 23. The screw 23 is pressed against the outside of the pile pressing plate 21.
Stiffening flanges are formed on opposite sides of the pile pressing plate 21.
Backfill 3 is supported inside the fender post 1. Backfill 3 comprises a crushed stone layer and a plain soil layer. The gravel layer is laid at the river bottom of the inner side of the fender post 1. The plain soil layer is paved on the crushed stone layer.
In this example, the crushed stone layer had a thickness of 2m.
The single-row cofferdam structure for river facing concrete filling pile revetment construction under uninterrupted navigation is applied to Jiang Boan pile foundation construction. Before construction, a steel sheet pile stress model is established according to the on-site topography and topography, water and soil pressure is calculated, the design of a steel sheet pile cofferdam is optimized, and the on-site construction requirements are met.
Firstly, adopting a long-arm excavator to be matched with a vibrating hammer to sink into a fender post along a river under static pressure, and then driving stiffening ribs of a steel sheet pile with the length of 1.4m into the fender post at intervals of 10m to serve as a reinforcing structure of the fender post. The end of the stiffening rib faces the river bank. The stiffening ribs are arranged along the width direction of the river. The guard piles are arranged along the length direction of the river. The guard piles are connected with the stiffening ribs through T-shaped corner piles. The corner connecting piles are integrally formed by pressing steel plates of the same type, and can tightly engage with the vertical and horizontal steel plate piles which are mutually perpendicular, so that water leakage at the corners is avoided.
And after all the longitudinal steel sheet piles and the transverse steel sheet piles are immersed, filling soil between the river bank and the sheet piles in a layered manner to form backfill. And filling small pieces of rubble or gravels and mixed sand soil in the range of about 2m upwards from the river bottom of the sheet pile to form a rubble layer, so that the stability of the bottom structure of the sheet pile is facilitated. And continuously filling the plain soil upwards to a position about 50cm below the top of the steel sheet pile, and carrying out layered rolling compaction, wherein the filled plain soil is beneficial to reverse excavation in the later stage. And after the filling of the plain soil layer is completed, installing opposite-pull groove steel at the two sides of the top of the steel sheet pile to serve as a reinforced enclosing purlin, and finally enabling the pile foundation to enter a soil filling platform for construction of the concrete filling pile.
After the construction of the concrete pile foundation is completed, the reverse digging soil is applied to the structures such as crown beams, hanging plates and the like at the top of the concrete pile foundation, and after the whole construction of the lower structure is completed, the reverse digging is performed to clean backfill between the concrete pile and the steel sheet pile cofferdam, and the steel sheet pile cofferdam is gradually pulled out.
The single-row cofferdam structure for the river-facing concrete bored concrete pile revetment construction under the uninterrupted navigation can be used for river-facing construction under the uninterrupted navigation condition, and can be used as a single-row steel sheet pile cofferdam system of a construction platform by filling soil. The single-row cofferdam structure for the revetment construction of the river-facing concrete bored concrete pile under uninterrupted navigation is convenient to construct, the steel sheet pile is relatively small in dosage and stable in structure, the requirement of filling soil on the inner side as a construction platform can be met, the influence on the passage of a channel is small, and compared with the existing construction method, the construction cost is effectively reduced.
The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in the present utility model is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present utility model (but not limited to) having similar functions are replaced with each other.
Claims (5)
1. Single cofferdam structure of river facing concrete bored concrete pile revetment construction under incessant navigation, its characterized in that includes:
the fender post is a Larson steel sheet pile, the fender post is arranged along the length direction of the river bank, and a plurality of stiffening ribs which are arranged at intervals along the length direction of the river bank are formed on the inner side of the fender post, which is back to the river center;
the enclosing purlin component is arranged at the upper end of the enclosing pile;
the backfill comprises a gravel layer and a plain soil layer, wherein the gravel layer is laid at the river bottom of the inner side of the fender pile, and the plain soil layer is laid on the gravel layer.
2. The construction single-row cofferdam structure for a river-facing concrete bored pile revetment under uninterrupted navigation according to claim 1, wherein the thickness of the crushed stone layer is 2m.
3. The construction single-row cofferdam structure for a river-facing concrete bored pile revetment under uninterrupted navigation according to claim 1, wherein the enclosing purlin assembly comprises:
the pile pressing plates are respectively attached to the inner side and the outer side of the fender post;
and the opposite pulling piece is tied between the two pile pressing plates.
4. The construction single-row cofferdam structure for the river-facing concrete bored pile revetment under uninterrupted navigation according to claim 3, wherein the upper part of the fender pile and the pile pressing plate are respectively provided with perforations, external threads are respectively formed at two ends of the opposite-pulling piece, the opposite-pulling piece is arranged on the upper part of the fender pile and in the perforations of the pile pressing plate in a penetrating manner, two ends of the opposite-pulling piece are respectively provided with a threaded piece in a threaded manner, and the threaded piece is pressed against the outer side of the pile pressing plate.
5. The construction single-row cofferdam structure for a river-facing concrete bored pile revetment under uninterrupted navigation according to claim 4, wherein stiffening flanges are formed on two opposite sides of the pile pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320582194.5U CN219825324U (en) | 2023-03-22 | 2023-03-22 | Single-row cofferdam structure for revetment construction of river-facing concrete filling pile under uninterrupted navigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320582194.5U CN219825324U (en) | 2023-03-22 | 2023-03-22 | Single-row cofferdam structure for revetment construction of river-facing concrete filling pile under uninterrupted navigation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219825324U true CN219825324U (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320582194.5U Active CN219825324U (en) | 2023-03-22 | 2023-03-22 | Single-row cofferdam structure for revetment construction of river-facing concrete filling pile under uninterrupted navigation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219825324U (en) |
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2023
- 2023-03-22 CN CN202320582194.5U patent/CN219825324U/en active Active
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