CN203393730U - Rapid supporting device for bed sinking of bottomless steel cofferdam - Google Patents
Rapid supporting device for bed sinking of bottomless steel cofferdam Download PDFInfo
- Publication number
- CN203393730U CN203393730U CN201320490196.8U CN201320490196U CN203393730U CN 203393730 U CN203393730 U CN 203393730U CN 201320490196 U CN201320490196 U CN 201320490196U CN 203393730 U CN203393730 U CN 203393730U
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- steel cofferdam
- bottomless
- bottomless steel
- bed
- guide frame
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Abstract
The utility model relates to the field of bridge construction, particularly to a rapid supporting device when a bottomless steel cofferdam sinks to the bed in pier bearing platform construction under the condition of deep-water bare rock. The rapid supporting device for bed sinking of the bottomless steel cofferdam comprises a support, a guide frame, a supporting column, an extensible screw, an upper lock nut and a lower lock nut; the support and the guide frame are fixedly connected onto the outer wall of the bottomless steel cofferdam; the extensible screw vertically penetrates a through hole which is formed in the support; the upper lock nut and the lower lock nut are fixed on the bilateral sides of the through hole; one end of the extensible screw is fixedly connected with the supporting column which is clamped and limited by the guide frame. According to the rapid supporting device for the bed sinking of the bottomless steel cofferdam, the problems that the supporting time of a cement sandbag is long and the bed sinking is greatly affected by the rising and falling change of the water level when the bottomless steel cofferdam sinks to the bed are solved, the structure is simple, the operation is convenient, the working efficiency is high, the rapid and stable bed sinking of the bottomless steel cofferdam can be ensured, and the risk of failure of the bed sinking of the steel cofferdam can be greatly reduced.
Description
Technical field
The utility model relates to bridge construction field, particularly an a kind of cushion device that plays quick pad effect when bottomless steel cofferdam implantation.
Background technology
During in the water such as rivers, lake, the low pile cap of bridge pier is constructed, the bottomless steel cofferdam of normal employing is created anhydrous construction environment as enclosing sealing facility, in water, the riverbed of pier location is hard naked rock or firm ground upper caldding layer when thinner, steel pipe pile, steel casing can not be squeezed into riverbed and build Pile Installation Platform.In this case, conventionally adopt crane barge that the bottomless steel cofferdam of pier cap is transferred and is located on riverbed, the bottom concrete of then the steel casing of Bored Pile Foundation being installed and being poured into bottomless steel cofferdam is fixed steel casing, utilizes stable bottomless steel cofferdam and steel casing to do to support to build the operation platform of Bored Pile Foundation to carry out pile foundation construction.
Because riverbed scar is uneven, crane barge (both bottomless steel cofferdam implantations) when putting into water under bottomless steel cofferdam and arrive at riverbed scar, the sword pin overwhelming majority of bottomless steel cofferdam can not be coincide with riverbed scar, bottomless steel cofferdam can not reach homeostasis, need to be under crane barge be hung state, space pad between Jiang Renjiaoyu riverbed scar is closely knit and firm, finally could remove hanging of crane barge, allows bottomless steel cofferdam be seated on riverbed stably.
During bottomless steel cofferdam implantation, conventionally arrange on diver Qian Dao riverbed, adopt sacked cement sand pocket to clog the space between bottomless steel cofferdam edged feet and riverbed scar, could remove the hangar system of crane barge to bottomless steel cofferdam after waiting the immersion of cement sand pocket to harden.Because the increase of dirver's underwater operation time along with the depth of water reduces, under the condition of 10 meters of depth of waters, the bottomless steel cofferdam implantation pad operation of this routine need to about approximately 2 days time just can complete, and the every increase of depth of water 10m, pad activity duration approximately increase by 1 day; The implantation pad duration is longer, and because of variation and the current scour effect of water level, bottomless steel cofferdam local subsidence consequently tilts or because crane barge floats, bottomless steel cofferdam promoted to disengaging riverbed, causes the risk of bottomless steel cofferdam implantation failure larger.
Utility model content
For above deficiency of the prior art, the purpose of this utility model is to provide a kind of simple in structure, easy to operate, cushion device that operating efficiency is high, guarantee bottomless steel cofferdam fast, stablize implantation, can reduce greatly the risk of steel cofferdam implantation failure.
To achieve these goals, the technical solution adopted in the utility model is:
Steel cofferdam implantation props up a cushion device fast, comprises bearing, guide frame, support column, expansion screw, upper locking nut, lower locking nut;
Described bearing, guide frame are fastened on respectively on bottomless steel cofferdam outer wall, described expansion screw is vertically through the through hole on described bearing, described upper locking nut, lower locking nut are arranged on described expansion screw and are fixed on the both sides of described through hole, described expansion screw one end and support column are connected and fixed, and it is spacing that described support column is directed to framework clamping.
As preferred version of the present utility model, the utility model also comprises attaching nut, and described expansion screw one end and support column are connected and fixed by attaching nut.
As preferred version of the present utility model, described bearing, guide frame are fixed by welding on bottomless steel cofferdam outer wall.
As preferred version of the present utility model, described bearing consists of channel-section steel and steel plate.
As preferred version of the present utility model, described support column consists of a hollow square steel or two channel-section steels.
As preferred version of the present utility model, described guide frame consists of channel-section steel.
As preferred version of the present utility model, described expansion screw adopts fining twisted steel or threaded high-strength alloy rod iron.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, the utility model can effectively solve that bottomless steel cofferdam cement sand pocket pad activity duration is long under deep water, naked rock (or covering layer is thinner) execution conditions, labour intensity is large and be subject to SEA LEVEL VARIATION to affect large technical barrier, has simple in structure, easy to operate, the reliable advantage of supporting & stablizing.
2, the utility model can allow dirver's underwater operation time than the time shorten of conventional cement sand pocket pad more than 3/4ths, realized bottomless steel cofferdam fast, stablize implantation, there is good economic and practical, the risk ，Neng Wei unit in charge of construction that can reduce greatly the failure of steel cofferdam implantation brings good economic benefits.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is elevation of the present utility model.
Fig. 3 is top view of the present utility model.
Mark in figure: 1-support column, 2-guide frame, 3-bearing, 4-attaching nut, 5-expansion screw, 6-lower locking nut, 7-upper locking nut, the bottomless steel cofferdam outer wall of 8-, 9-through hole.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1, a kind of bottomless steel cofferdam implantation props up cushion device fast in reference, and it comprises bearing 3, guide frame 2, support column 1, expansion screw 5, upper locking nut 7, lower locking nut 6;
Described bearing 3, guide frame 2 are fastened on respectively on bottomless steel cofferdam outer wall 8, described expansion screw 5 is vertically through the through hole 9 on described bearing 3, described upper locking nut 7, lower locking nut 6 are arranged on described expansion screw 5 and are fixed on the both sides of described through hole 9, described expansion screw 5 one end and support column 1 are connected and fixed, and it is spacing that described support column 1 is directed to framework 2 clampings.
During work, before described bottomless steel cofferdam integral body hangs water, by design attitude, bearing 3 of the present utility model and guide frame 2 are weldingly fixed on steel cofferdam outer wall 8, then install support column 1, expansion screw 5 and upper locking nut 7 thereof, lower locking nut 6; Before described bottomless steel cofferdam integral body is transferred, by adjusting upper locking nut 7 and expansion screw 5, support column 1 is suspended on bottomless steel cofferdam outer wall 8, make support column 1 lower end higher than the sword pin of bottomless steel cofferdam; In described bottomless steel cofferdam integral body, by crane barge, hung onto after the local implantation of riverbed face, dirver enters water and unscrews upper locking nut 7, support column 1 is transferred to riverbed bedrock surface, then tightens lower locking nut 6 and push against below bearing 3, make support column 1 by expansion screw 5 stable support on bearing 3; It is stable that the middle part of support column 1 is directed to the spacing maintenance of framework 2 clamping; All support column 1 is bearing in after riverbed bedrock surface, gets final product the hangar system between removal crane barge and described bottomless steel cofferdam, completes bottomless steel cofferdam implantation.
Described a kind of bottomless steel cofferdam implantation props up cushion device fast, it also can comprise attaching nut 4, described expansion screw 5 one end and support column 1 are connected and fixed by attaching nut 4, and described expansion screw 5 one end and support column 1 also can adopt other modes to be connected and fixed, such as welding.
It is upper that described bearing (3), guide frame (2) can be fixed by welding in bottomless steel cofferdam outer wall (8), also can select the mode of bolt connection or riveted joint to be fixed on bottomless steel cofferdam outer wall (8).
The formation of described bearing (3) can be the form that channel-section steel adds steel plate, whether this is to bear bottomless steel cofferdam deadweight and water flow impact pressure and examine and calculate after intensity, rigidity, most economical form in the material specification that can select, model according to stablizing.
Reason same as above, the formation of described support column (1) can be a hollow square steel or two channel-section steels.
Reason same as above, the formation of described guide frame (2) can be channel-section steel or steel plate.
Reason same as above, the formation of described expansion screw (5) can be fining twisted steel or threaded high-strength alloy rod iron.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. bottomless steel cofferdam implantation props up a cushion device fast, it is characterized in that comprising bearing (3), guide frame (2), support column (1), expansion screw (5), upper locking nut (7), lower locking nut (6);
Described bearing (3), guide frame (2) are fastened on respectively on bottomless steel cofferdam outer wall (8), described expansion screw (5) is vertically through the through hole (9) on described bearing (3), described upper locking nut (7), lower locking nut (6) are arranged on the both sides that described through hole (9) were gone up and be fixed on to described expansion screw (5), described expansion screw (5) one end and support column (1) are connected and fixed, and described support column (1) is directed to framework (2) and clamps spacing.
2. a kind of bottomless steel cofferdam implantation according to claim 1 props up cushion device fast, characterized by further comprising attaching nut (4), and described expansion screw (5) one end and support column (1) are connected and fixed by attaching nut (4).
3. a kind of bottomless steel cofferdam implantation according to claim 1 props up cushion device fast, it is characterized in that described bearing (3), guide frame (2) are fixed by welding on bottomless steel cofferdam outer wall (8).
4. a kind of bottomless steel cofferdam implantation according to claim 1 props up cushion device fast, it is characterized in that described bearing (3) consists of channel-section steel and steel plate.
5. a kind of bottomless steel cofferdam implantation according to claim 1 props up cushion device fast, it is characterized in that described support column (1) consists of a hollow square steel or two channel-section steels.
6. a kind of bottomless steel cofferdam implantation according to claim 1 props up cushion device fast, it is characterized in that described guide frame (2) consists of channel-section steel or steel plate.
7. a kind of bottomless steel cofferdam implantation according to claim 1 props up cushion device fast, it is characterized in that described expansion screw (5) adopts fining twisted steel or threaded high-strength alloy rod iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490196.8U CN203393730U (en) | 2013-08-12 | 2013-08-12 | Rapid supporting device for bed sinking of bottomless steel cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490196.8U CN203393730U (en) | 2013-08-12 | 2013-08-12 | Rapid supporting device for bed sinking of bottomless steel cofferdam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203393730U true CN203393730U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320490196.8U Expired - Fee Related CN203393730U (en) | 2013-08-12 | 2013-08-12 | Rapid supporting device for bed sinking of bottomless steel cofferdam |
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| Country | Link |
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| CN (1) | CN203393730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749242A (en) * | 2020-07-20 | 2020-10-09 | 石家庄铁道大学 | Deepwater bare rock foundation construction device and method |
-
2013
- 2013-08-12 CN CN201320490196.8U patent/CN203393730U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749242A (en) * | 2020-07-20 | 2020-10-09 | 石家庄铁道大学 | Deepwater bare rock foundation construction device and method |
| CN111749242B (en) * | 2020-07-20 | 2021-10-15 | 石家庄铁道大学 | Deepwater bare rock foundation construction device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160104 Address after: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Patentee after: CHINA RAILWAY NO.2 BUREAU ENGINEERING Co.,Ltd. Address before: 610041, No. nine, No. 156, building B, high building, Xing Xing Road, Chengdu hi tech Zone, Sichuan Patentee before: CHINA RAILWAY ERJU Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180820 Address after: No. 16, Jinniu District Road, Jinniu District Road, Chengdu, Sichuan Co-patentee after: CHINA RAILWAY ERJU SECOND ENGINEERING CO.,LTD. Patentee after: CHINA RAILWAY NO.2 BUREAU ENGINEERING Co.,Ltd. Address before: No. 16, Jinniu District Road, Jinniu District Road, Chengdu, Sichuan Patentee before: CHINA RAILWAY NO.2 BUREAU ENGINEERING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 16, Jinniu District Road, Jinniu District Road, Chengdu, Sichuan Co-patentee after: CHINA RAILWAY ERJU SECOND ENGINEERING CO.,LTD. Patentee after: CHINA RAILWAY NO.2 ENGINEERING GROUP Co.,Ltd. Address before: No. 16, Jinniu District Road, Jinniu District Road, Chengdu, Sichuan Co-patentee before: CHINA RAILWAY ERJU SECOND ENGINEERING CO.,LTD. Patentee before: CHINA RAILWAY NO.2 BUREAU ENGINEERING Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 |