CN216405146U - Bridge top pushes away interim mound structure suitable for in deep soft soil stratum - Google Patents
Bridge top pushes away interim mound structure suitable for in deep soft soil stratum Download PDFInfo
- Publication number
- CN216405146U CN216405146U CN202122606095.XU CN202122606095U CN216405146U CN 216405146 U CN216405146 U CN 216405146U CN 202122606095 U CN202122606095 U CN 202122606095U CN 216405146 U CN216405146 U CN 216405146U
- Authority
- CN
- China
- Prior art keywords
- pushing
- pile
- temporary pier
- soft soil
- bridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002689 soil Substances 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 56
- 239000010959 steel Substances 0.000 claims abstract description 56
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 24
- 238000004181 pedogenesis Methods 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 19
- 239000000463 material Substances 0.000 abstract description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Bridges Or Land Bridges (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a bridge pushing temporary pier structure suitable for deep soft soil stratum, which is characterized in that a pushing pile is arranged on the top of a bridge pushing temporary pier; the bridge pushing temporary pier structure suitable for the deep soft soil stratum is divided into 3 parts, the lower part is a prestressed precast tubular pile, the middle part is a reinforced concrete bearing platform, and the upper part is a steel pipe pile and a steel pad beam; the prestressed precast tubular pile and the steel pipe pile are connected by the reinforced concrete bearing platform, and the reinforced concrete bearing platform needs to be completely or partially buried under the ground. This patent has good atress characteristic, adopts prestressing force precast tubular pile as the basis, provides vertical bearing capacity. The upper part adopts a steel pipe pile and profile steel to form a pushing platform for placing pushing equipment; the steel material can resist larger horizontal force and deformation in the horizontal direction. The middle part adopts a reinforced concrete bearing platform to connect the upper part and the lower part to form a whole. The temporary pier structure solves the problems of large bearing capacity, small settlement and convenient construction and dismantling of the temporary pier required in a deep soft soil stratum, and saves the construction cost.
Description
Technical Field
The utility model relates to the field of bridge incremental launching construction, in particular to a bridge incremental launching temporary pier structure suitable for deep soft soil strata.
Background
When the bridge is subjected to incremental launching construction, a certain number of temporary piers are required to be arranged, and walking jacks are placed on the temporary piers and used as fulcrums of the bridge in an incremental launching stage to meet the requirement of incremental launching stress of the bridge. The vertical stress of the temporary pier is often larger, less is hundreds of tons, and larger is thousands of tons, and excessive settlement cannot occur under the vertical load. Meanwhile, the temporary pier also needs to have certain horizontal bearing capacity and horizontal deformation resistance.
When the temporary piers are built in a deep soft soil stratum, if a gravity type foundation is adopted to expand the foundation, the foundation is difficult to meet the bearing capacity requirement, and the construction cost is high, so that the pile foundation is preferred. The pile foundation mainly comprises three forms of steel pipes, reinforced concrete piles or prefabricated pipe piles. The steel pipe pile has the advantages of convenient and quick construction, large horizontal bearing capacity and strong deformation resistance. However, for the pile with overlarge vertical bearing capacity, the steel pipe pile is difficult to be inserted and driven to the designed depth, so that the requirement on the bearing capacity is difficult to meet. If the steel pipe pile is inserted and driven too deeply, the later-stage pulling-out is difficult, so that the material loss is large, and the construction cost is increased.
The reinforced concrete pile or the precast tubular pile has the advantages of large vertical bearing capacity and small horizontal bearing capacity and small capacity of resisting horizontal deformation as a temporary pier foundation. When the temporary pier foundation needs to be too much higher than the ground or is in a soft soil stratum, the reinforced concrete pile and the precast tubular pile are not suitable any more.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above-mentioned defects, the utility model provides a bridge pushing temporary pier structure suitable for a deep soft soil stratum. When the bridge is subjected to incremental launching construction, a certain number of temporary piers are required to be arranged, and walking jacks are placed on the temporary piers and used as fulcrums of the bridge in an incremental launching stage to meet the requirement of incremental launching stress of the bridge. The vertical stress of the temporary pier is often larger, less is hundreds of tons, and larger is thousands of tons, and excessive settlement cannot occur under the vertical load. Meanwhile, the temporary pier also needs to have certain horizontal bearing capacity and horizontal deformation resistance. This patent provides a top of adaptation deep soft soil layer pushes away interim mound structural style, adopts prestressing force precast tubular pile as the basis, provides vertical bearing capacity. The upper part adopts steel pipe pile, shaped steel to constitute and pushes away the platform for place the pushing away equipment, resist horizontal force, great horizontal force and the deformation of horizontal direction can be resisted to steel. The middle part adopts a reinforced concrete bearing platform to connect the upper part and the lower part to form a whole. The temporary pier structure solves the problems of large bearing capacity, small settlement and convenient construction and dismantling of the temporary pier required in a deep soft soil stratum, and saves the construction cost.
The utility model is realized in such a way that a bridge pushing temporary pier structure suitable for a deep soft soil stratum is constructed, and the structure is characterized in that; the bridge pushing temporary pier structure suitable for the deep soft soil stratum is divided into 3 parts, the lower part is a prestressed precast tubular pile, the middle part is a reinforced concrete bearing platform, and the upper part is a steel pipe pile and a steel pad beam; the prestressed precast tubular pile and the steel pipe pile are connected by the reinforced concrete bearing platform, and the reinforced concrete bearing platform needs to be completely or partially buried under the ground.
The bridge pushing temporary pier structure suitable for the deep soft soil stratum is characterized in that a pushing pile is arranged on the top of the bridge pushing temporary pier; the upper part of the structure adopts a steel pipe pile and profile steel to form a pushing platform for placing pushing equipment; the steel can resist larger horizontal force and deformation in the horizontal direction; the middle part adopts a reinforced concrete bearing platform to connect the upper part and the lower part to form a whole.
The bridge pushing temporary pier structure suitable for the deep soft soil stratum is characterized in that a pushing pile is arranged on the top of the bridge pushing temporary pier; and a cushion block is arranged on the profile steel cushion beam.
The bridge pushing temporary pier structure suitable for the deep soft soil stratum is characterized in that a pushing pile is arranged on the top of the bridge pushing temporary pier; the construction process comprises the following steps: inserting and driving a prestressed precast tubular pile (PHC tubular pile) → welding anchoring steel bars at the head of the tubular pile → installing cushion cap steel bars → installing steel pipe embedded parts → pouring cushion cap concrete → installing steel pipes and profile steel distribution beams and cushion beams.
The utility model has the following advantages: the utility model provides a bridge incremental launching temporary pier structure suitable for a deep soft soil stratum; when the bridge is subjected to incremental launching construction, a certain number of temporary piers are required to be arranged, and walking jacks are placed on the temporary piers and used as fulcrums of the bridge in an incremental launching stage to meet the requirement of incremental launching stress of the bridge. The vertical stress of the temporary pier is often larger, less is hundreds of tons, and larger is thousands of tons, and excessive settlement cannot occur under the vertical load. Meanwhile, the temporary pier also needs to have certain horizontal bearing capacity and horizontal deformation resistance. This patent provides a top of adaptation deep soft soil layer pushes away interim mound structural style, adopts prestressing force precast tubular pile as the basis, provides vertical bearing capacity. The upper part adopts steel pipe pile, shaped steel to constitute and pushes away the platform for place the pushing away equipment, resist horizontal force, great horizontal force and the deformation of horizontal direction can be resisted to steel. The middle part adopts a reinforced concrete bearing platform to connect the upper part and the lower part to form a whole. The temporary pier structure solves the problems of large bearing capacity, small settlement and convenient construction and dismantling of the temporary pier required in a deep soft soil stratum, and saves the construction cost.
This patent has good atress characteristic. The prestressed precast tubular pile is used as a foundation to provide vertical bearing capacity. The upper part adopts a steel pipe pile and profile steel to form a pushing platform for placing pushing equipment; the steel material can resist larger horizontal force and deformation in the horizontal direction. The middle part adopts a reinforced concrete bearing platform to connect the upper part and the lower part to form a whole. The temporary pier structure solves the problems of large bearing capacity, small settlement and convenient construction and dismantling of the temporary pier required in a deep soft soil stratum, and saves the construction cost.
Drawings
Fig. 1 is a longitudinal arrangement view of temporary piers;
FIG. 2 is a schematic cross-sectional view at A in FIG. 1;
FIG. 3 is a schematic cross-sectional view at B in FIG. 1;
fig. 4 is a view of a temporary pier connection configuration.
Wherein: the prestressed precast tubular pile comprises a prestressed precast tubular pile 1, a reinforced concrete bearing platform 2 in the middle, a steel pipe pile 3 on the upper part, a cushion block 4, pushing equipment 5, a tubular pile head welding anchoring steel bar 6 and a steel pipe embedded part 7.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 4, and the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides a bridge pushing temporary pier structure suitable for deep soft soil strata by improvement, as shown in figures 1-4, which can be implemented as follows; the bridge pushing temporary pier structure suitable for the deep soft soil stratum is divided into 3 parts, the lower part is a prestressed precast tubular pile 1, the middle part is a reinforced concrete bearing platform 2, and the upper part is a steel pipe pile 3 and a steel pad beam; the prestressed precast tubular pile 1 and the steel pipe pile are connected by the reinforced concrete bearing platform 2, and the reinforced concrete bearing platform 2 needs to be completely or partially buried under the ground.
When in implementation; the upper part of the structure adopts a steel pipe pile and profile steel to form a pushing platform for placing pushing equipment 5; the steel can resist larger horizontal force and deformation in the horizontal direction; the middle part adopts a reinforced concrete bearing platform 2 to connect the upper part and the lower part to form a whole.
When in implementation; and a cushion block 4 is arranged on the profile steel cushion beam.
When in implementation; the construction process comprises the following steps: inserting and driving a prestressed precast tubular pile (PHC tubular pile) → welding anchoring steel bars 6 on a tubular pile head → installing cushion cap steel bars → installing steel pipe embedded parts 7 → pouring cushion cap concrete → installing steel pipes and profile steel distribution beams and cushion beams.
The advantage and the beneficial effect of this patent do: this patent has good atress characteristic. The prestressed precast tubular pile is used as a foundation to provide vertical bearing capacity. The upper part adopts a steel pipe pile and profile steel to form a pushing platform for placing pushing equipment; the steel material can resist larger horizontal force and deformation in the horizontal direction. The middle part adopts a reinforced concrete bearing platform to connect the upper part and the lower part to form a whole. The temporary pier structure solves the problems of large bearing capacity, small settlement and convenient construction and dismantling of the temporary pier required in a deep soft soil stratum, and saves the construction cost.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A bridge pushing temporary pier structure suitable for deep soft soil stratum is characterized in that a bridge pushing temporary pier structure is provided;
the bridge pushing temporary pier structure suitable for the deep soft soil stratum is divided into 3 parts, the lower part is a prestressed precast tubular pile (1), the middle part is a reinforced concrete bearing platform (2), and the upper part is a steel pipe pile (3) and a profile steel pad beam; the prestressed precast tubular pile (1) and the steel pipe pile are connected by the reinforced concrete bearing platform (2), and the reinforced concrete bearing platform (2) needs to be completely or partially buried under the ground.
2. The bridge pushing temporary pier structure suitable for deep soft soil formations according to claim 1, wherein the bridge pushing temporary pier structure comprises a bridge pushing pile and a bridge pushing pile; the upper part of the structure adopts a steel pipe pile and profile steel to form a pushing platform for placing pushing equipment (5); the steel can resist horizontal force and horizontal deformation; the middle part adopts a reinforced concrete bearing platform (2) to connect the upper part and the lower part to form a whole.
3. The bridge pushing temporary pier structure suitable for deep soft soil formations according to claim 1, wherein the bridge pushing temporary pier structure comprises a bridge pushing pile and a bridge pushing pile; the steel backing beam is provided with a cushion block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122606095.XU CN216405146U (en) | 2021-10-28 | 2021-10-28 | Bridge top pushes away interim mound structure suitable for in deep soft soil stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122606095.XU CN216405146U (en) | 2021-10-28 | 2021-10-28 | Bridge top pushes away interim mound structure suitable for in deep soft soil stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216405146U true CN216405146U (en) | 2022-04-29 |
Family
ID=81299298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122606095.XU Active CN216405146U (en) | 2021-10-28 | 2021-10-28 | Bridge top pushes away interim mound structure suitable for in deep soft soil stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216405146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319143A (en) * | 2021-10-28 | 2022-04-12 | 四川路桥华东建设有限责任公司 | Bridge top pushes away interim mound structure suitable for in deep soft soil stratum |
-
2021
- 2021-10-28 CN CN202122606095.XU patent/CN216405146U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319143A (en) * | 2021-10-28 | 2022-04-12 | 四川路桥华东建设有限责任公司 | Bridge top pushes away interim mound structure suitable for in deep soft soil stratum |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107142856B (en) | Abutment reconstruction method, abutment reconstruction pier and jacking reconstruction bridge | |
| CN114319143A (en) | Bridge top pushes away interim mound structure suitable for in deep soft soil stratum | |
| CN104532868B (en) | High abrupt change shape sloped region bridge anchor pull-type high cap pile group basis construction method | |
| CN100513695C (en) | Repair and reinforcement system of existing structure using reaction force of pressurizing means and method thereof | |
| CN110777806B (en) | Multi-connecting-rod plane frame permanent supporting structure and construction process thereof | |
| CN111535161B (en) | Slope terrain pier deformation repairing structure and method | |
| CN114703868A (en) | Anchor-pull support and foundation pit construction method by utilizing shallow foundation pit in large-height-difference pit | |
| CN108385693B (en) | Equal-generation anchor bolt supporting method and system for staged basement supporting | |
| CN113668524A (en) | PSB finish rolling deformed steel bar-based expanded head anti-floating anchor rod prestress application method | |
| CN115717368B (en) | Bridge abutment correction reinforcing structure and construction method thereof | |
| CN111058463A (en) | Rock steep slope high cantilever slope-collecting reinforcing structure and construction method | |
| CN203729309U (en) | Support system with combined double-row piles combined with vertical prestressed anchor bolts | |
| CN112195928B (en) | Pile plate composite structure for foundation pit support | |
| CN212294677U (en) | End type prestressed inclined pile | |
| CN220377341U (en) | Pile cap type large-diameter inclined single pile foundation arch base structure | |
| CN220450839U (en) | Assembled prestressed high-strength concrete anti-slip tubular pile | |
| CN219653491U (en) | Steel construction abutment suitable for steel trestle | |
| CN106223344A (en) | A kind of ground line piled anchor framework foundation pit supporting method | |
| CN102235017B (en) | Lateral force resisting method for soft soil foundation building | |
| CN213390202U (en) | A combined polygonal tubular structure fan foundation | |
| CN216973419U (en) | Supporting structure for preventing large-area continuous collapse of foundation pit enclosure | |
| CN212742557U (en) | Cement mixing pile enclosure wall-profile steel cantilever type combined support | |
| CN209854736U (en) | Supporting structure for emergency rescue and reinforcement of foundation pit | |
| CN212405174U (en) | Supporting structure and building of soft rock foundation pit at lower part of upper soil layer | |
| CN212926083U (en) | Cement-soil enclosure wall-precast pile cantilever type combined support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |