CN215053131U - Steel cofferdam for complex turbulent water area - Google Patents
Steel cofferdam for complex turbulent water area Download PDFInfo
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- CN215053131U CN215053131U CN202120839128.2U CN202120839128U CN215053131U CN 215053131 U CN215053131 U CN 215053131U CN 202120839128 U CN202120839128 U CN 202120839128U CN 215053131 U CN215053131 U CN 215053131U
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Abstract
The utility model relates to a complicated torrent waters steel cofferdam, including cofferdam support under water, double-deck steel cofferdam, bracket, rhombus fixed pile crowd, the fixed steel-pipe pile of corner, individual layer steel cofferdam, guide bracket, guide pile, guide beam, support frame and steel casing under water, rhombus fixed pile crowd and the fixed steel-pipe pile of corner all are equipped with the bracket under water, the fixed steel-pipe pile of rhombus group and corner sets up the turbulent flow side of meeting of widening section cofferdam construction in the river course, just the fixed steel-pipe pile of corner sets up the both sides at the fixed pile crowd of rhombus, the cofferdam support under water sets up on the bracket under water, the double-deck steel cofferdam setting is fixed in the cofferdam support outside under water, the side of the fixed steel-pipe pile of corner is equipped with guide bracket. The utility model has the advantages that: the utility model discloses in set up the support frame that has slide rail system between peripheral steel protects a section of thick bamboo and guide beam, not only can utilize the steel to protect a section of thick bamboo and play the effect of support to the steel cofferdam, can also not receive the steel and protect a section of thick bamboo and continue to beat the influence of establishing.
Description
Technical Field
The utility model relates to a pile foundation construction technical field, in particular to complicated torrent waters steel cofferdam.
Background
In recent years, China vigorously develops capital construction, and huge achievements are obtained along with the vigorous investment and development of the nation. Large-span bridges and water-borne building construction projects are increasing, wherein construction of water foundations is a key. The steel sheet pile cofferdam is one of important temporary structures for underwater foundation construction, and has a good application prospect in underwater foundation construction due to a plurality of advantages of the steel sheet pile cofferdam.
The water area distribution of China is wide, and the situation is complex and various. When a complex turbulent water area is encountered, many adverse conditions can be encountered when the steel sheet pile is arranged. At present, the steel cofferdam construction under the condition generally adopts the double-wall steel cofferdam, but when the double-wall steel cofferdam is placed down, the turbulent water flow force is large, the positioning is difficult to fix, the recovery utilization rate is low, the engineering cost is high, and the construction period is long.
Therefore, at present, a steel cofferdam for a complex turbulent water area with safe and stable structure, high positioning precision, high construction speed, economy and environmental protection is needed to be found.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough among the prior art, provide a complicated torrent waters steel cofferdam.
The complex turbulent water area steel cofferdam comprises an underwater cofferdam support, a double-layer steel cofferdam, an underwater bracket, a rhombic fixed pile group, a corner fixed steel pipe pile, a single-layer steel cofferdam, a guide bracket, guide piles, guide beams, a support frame and steel pile casings, wherein the rhombic fixed pile group and the corner fixed steel pipe pile are respectively provided with the underwater bracket, the rhombic fixed pile group and the corner fixed steel pipe pile are arranged on the turbulence facing side of the cofferdam construction of the river channel widening section, the corner fixed steel pipe pile is arranged on the two sides of the rhombic fixed pile group, the underwater cofferdam support is arranged on the underwater bracket, the double-layer steel cofferdam is arranged and fixed on the outer side of the underwater cofferdam support, the guide bracket is arranged on the side edge of the corner fixed steel pipe pile, the guide pile is arranged around the water area of cofferdam construction, the guide beams are arranged on the guide bracket, and the single-layer steel cofferdam is arranged on the outer side of the guide beams, the steel pile casing is arranged inside the single-layer steel cofferdam, and the support frame is arranged between the steel pile casing close to the single-layer steel cofferdam and the guide beam.
Preferably, the method comprises the following steps: the rhombic fixed pile group is composed of four fixed steel pipe piles, a forward supporting rod and four oblique supporting rods, the fixed steel pipe piles are arranged in a rhombic shape, the oblique supporting rods are arranged between the fixed steel pipe piles, the forward supporting rod is arranged between two fixed steel pipe piles in the turbulence direction, and the forward supporting rod and each oblique supporting rod form an included angle of 60 degrees with each other.
Preferably, the method comprises the following steps: the guide bracket and the guide beam are at least arranged in an upper-lower way.
Preferably, the method comprises the following steps: the river channel widening section consists of an inclined line section, a straight line section and an arc line section; the diagonal line segment is parallel to the double-layer steel cofferdam; the straight line segment is parallel to the single-layer steel cofferdam; when the steel cofferdam is positioned in the center of the river channel, the radiuses of the arc line sections at the two sides are both R; when the steel cofferdam is not positioned in the center of the river channel, the sum of the radiuses of the arc line sections at the two sides is 2R.
Preferably, the method comprises the following steps: the support frame include track, clamp rail ware, bracing piece, stiffener and enhancement bridging, the track sets up in the steel that is close to individual layer steel cofferdam and protects a outside, bracing piece one end sets up on the guide beam, and the other end sets up on the track through pressing from both sides rail ware, the stiffener sets up in bracing piece level both sides and is located between bracing piece and the guide beam, it sets up between two upper and lower spinal branch vaulting poles to strengthen the bridging.
The utility model has the advantages that:
1. compared with the prior art, the utility model discloses a rhombus fixed pile crowd and the fixed steel-pipe pile cooperation underwater carriage of corner and underwater cofferdam support play location and firm effect to double-deck steel cofferdam construction, form a firm choked flow protective screen in steel cofferdam construction area place ahead, make torrent flow shunt to both sides, the rivers power that significantly reduces is to the impact of steel cofferdam construction area, has guaranteed that the safety of steel cofferdam construction goes on smoothly, and the technical benefit advantage is obvious.
2. The utility model discloses in reduced just horizontal and the slant horizontal brace in the cofferdam, simplified the construction procedure, improved the efficiency of construction, reduced construction cost, the economic benefits advantage is obvious.
3. The utility model discloses in set up the support frame that has slide rail system between peripheral steel protects a section of thick bamboo and guide beam, not only can utilize the steel to protect a section of thick bamboo and play the effect of support to the steel cofferdam, can also not receive the steel and protect a section of thick bamboo and continue to beat the influence of establishing.
4. The utility model discloses in carry out the river course before the cofferdam construction and widen in advance, be favorable to reducing the positive rivers impact and the lateral water pressure when the cofferdam is under construction, and the later stage river course resumes and has guaranteed original ecological environment, has certain technique and environmental protection benefit.
Drawings
FIG. 1 is a schematic structural diagram of a steel cofferdam for a complex turbulent water area;
FIG. 2 is a layout diagram of a diamond-shaped fixed pile group and a corner fixed steel pipe pile;
FIG. 3 is a construction layout view of the double-layer steel cofferdam;
FIG. 4 is a construction layout diagram of a steel cofferdam with two side edges;
FIG. 5 is a construction layout diagram of an inner side steel cofferdam;
FIG. 6 is a construction layout of a steel casing and a support frame;
FIG. 7 is a schematic view of the connection of the steel casing and the support frame;
FIG. 8 is an elevational view of FIG. 7;
fig. 9 is a schematic view of a river widening section.
Description of reference numerals: 1-underwater cofferdam support; 2-double-layer steel cofferdam; 3-underwater carriage; 4, fixing the steel pipe pile; 5-forward supporting rod; 6-diagonal brace rod; 7, fixing the steel pipe piles at the corners; 8-single-layer steel cofferdam; 9-guide bracket; 10-guide pile; 11-guide beam; 12-a support frame; 13-steel casing; 14-track; 15-rail clamping device; 16-support bar; 17-reinforcing rods; 18-strengthen the cross brace; 19-diagonal segment; 20-straight segment; 21-arc segment.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
As an embodiment, the complex turbulent water area steel cofferdam comprises an underwater cofferdam support 1, a double-layer steel cofferdam 2, an underwater bracket 3, a rhombic fixed pile group, a corner fixed steel pipe pile 7, a single-layer steel cofferdam 8, a guide bracket 9, a guide pile 10, a guide beam 11, a support frame 12 and a steel casing 13, wherein the rhombic fixed pile group and the corner fixed steel pipe pile 7 are both provided with the underwater bracket 3, the rhombic fixed pile group and the corner fixed steel pipe pile 7 are arranged on the turbulence facing side of cofferdam construction at a river channel widening section, the corner fixed steel pipe piles 7 are arranged on two sides of the rhombic fixed pile group, the underwater cofferdam support 1 is arranged on the underwater bracket 3, the double-layer steel cofferdam 2 is arranged and fixed on the outer side of the underwater cofferdam support 1, the guide bracket 9 is arranged on the side of the corner fixed steel pipe pile 7, the guide pile 10 is provided with the guide bracket 9, and the guide pile 10 is arranged around the cofferdam construction, the guide beam 11 is arranged on the guide bracket 9, the single-layer steel cofferdam 8 is arranged outside the guide beam 11, the steel pile casing 13 is arranged inside the single-layer steel cofferdam 8, and the support frame 12 is arranged between the steel pile casing 13 close to the single-layer steel cofferdam 8 and the guide beam 11.
The rhombic fixed pile group is composed of four fixed steel pipe piles 4, a forward supporting rod 5 and four inclined supporting rods 6, the fixed steel pipe piles 4 are arranged in a rhombic shape, the inclined supporting rods 6 are arranged between the fixed steel pipe piles 4, the forward supporting rod 5 is arranged between two fixed steel pipe piles 4 in the turbulent flow direction, and the forward supporting rod 5 and each inclined supporting rod 6 form an included angle of 60 degrees.
The guide bracket 9 and the guide beam 11 are at least arranged in an upper-lower way.
In a riverway section of cofferdam construction, widening two sides of the riverway in advance, wherein the shape of the riverway widening section can constantly keep the width of the water flow cross section before and after the steel cofferdam is constructed and consists of an oblique line section 19, a straight line section 20 and an arc line section 21; the diagonal line section 19 is parallel to the double-layer steel cofferdam 2; the straight line segment 20 is parallel to the single-layer steel cofferdam 8; when the steel cofferdam is positioned in the center of the river channel, the radiuses of the arc line sections 21 on the two sides are both R; when the steel cofferdam is not positioned in the center of the river channel, the sum of the radiuses of the arc line sections 21 at the two sides is 2R.
The supporting frame 12 comprises a rail 14, rail clamping devices 15, supporting rods 16, reinforcing rods 17 and reinforcing cross braces 18, the rail 14 is arranged on the outer side of a steel casing 13 close to the single-layer steel cofferdam 8, one end of each supporting rod 16 is arranged on the guide beam 11, the other end of each supporting rod is arranged on the rail 14 through the rail clamping device 15, the reinforcing rods 17 are arranged on the two horizontal sides of the supporting rods 16 and located between the supporting rods 16 and the guide beam 11, and the reinforcing cross braces 18 are arranged between the upper supporting rod 16 and the lower supporting rod 16.
Claims (5)
1. A steel cofferdam for complex turbulent water areas is characterized in that: the underwater cofferdam comprises an underwater cofferdam support (1), a double-layer steel cofferdam (2), an underwater bracket (3), a rhombic fixed pile group, corner fixed steel pipe piles (7), a single-layer steel cofferdam (8), a guide bracket (9), guide piles (10), guide beams (11), a support frame (12) and steel pile casings (13), wherein the rhombic fixed pile group and the corner fixed steel pipe piles (7) are respectively provided with the underwater bracket (3), the rhombic fixed pile group and the corner fixed steel pipe piles (7) are arranged on the turbulence facing side of the cofferdam construction of a river channel widening section, the corner fixed steel pipe piles (7) are arranged on two sides of the rhombic fixed pile group, the underwater cofferdam support (1) is arranged on the underwater bracket (3), the double-layer steel cofferdam (2) is arranged and fixed on the outer side of the underwater cofferdam support (1), and the guide bracket (9) is arranged on the side edge of the corner fixed steel pipe pile (7), the guide pile (10) is provided with a guide bracket (9), the guide pile (10) is arranged around a cofferdam construction water area, the guide beam (11) is arranged on the guide bracket (9), the single-layer steel cofferdam (8) is arranged on the outer side of the guide beam (11), the steel pile casing (13) is arranged inside the single-layer steel cofferdam (8), and the support frame (12) is arranged between the steel pile casing (13) close to the single-layer steel cofferdam (8) and the guide beam (11).
2. The complex turbulent water steel cofferdam of claim 1 wherein: the rhombic fixed pile group is composed of four fixed steel pipe piles (4), a forward supporting rod (5) and four oblique supporting rods (6), the fixed steel pipe piles (4) are arranged in a rhombic shape, the oblique supporting rods (6) are arranged between the fixed steel pipe piles (4), the forward supporting rods (5) are arranged between the two fixed steel pipe piles (4) in the forward turbulence direction, and 60-degree included angles are formed between every two forward supporting rods (5) and every two oblique supporting rods (6).
3. The complex turbulent water steel cofferdam of claim 1 wherein: the guide bracket (9) and the guide beam (11) are at least arranged in an upper-lower way.
4. The complex turbulent water steel cofferdam of claim 1 wherein: the river channel widening section consists of an inclined line section (19), a straight line section (20) and an arc line section (21); the diagonal line section (19) is parallel to the double-layer steel cofferdam (2); the straight line section (20) is parallel to the single-layer steel cofferdam (8); when the steel cofferdam is positioned in the center of the river channel, the radiuses of the arc line sections (21) at the two sides are both R; when the steel cofferdam is not positioned in the center of the river channel, the sum of the radiuses of the arc line sections (21) on the two sides is 2R.
5. The complex turbulent water steel cofferdam of claim 1 wherein: support frame (12) include track (14), clamp rail ware (15), bracing piece (16), stiffener (17) and strengthen bridging (18), track (14) set up in the steel that is close to individual layer steel cofferdam (8) and protect a section of thick bamboo (13) outside, bracing piece (16) one end sets up on guide beam (11), and the other end passes through clamp rail ware (15) and sets up on track (14), stiffener (17) set up in bracing piece (16) level both sides and lie in between bracing piece (16) and guide beam (11), strengthen bridging (18) and set up between two upper and lower bracing pieces (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120839128.2U CN215053131U (en) | 2021-04-22 | 2021-04-22 | Steel cofferdam for complex turbulent water area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120839128.2U CN215053131U (en) | 2021-04-22 | 2021-04-22 | Steel cofferdam for complex turbulent water area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215053131U true CN215053131U (en) | 2021-12-07 |
Family
ID=79112440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120839128.2U Active CN215053131U (en) | 2021-04-22 | 2021-04-22 | Steel cofferdam for complex turbulent water area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215053131U (en) |
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2021
- 2021-04-22 CN CN202120839128.2U patent/CN215053131U/en active Active
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