阅读说明：本技术 一种围堰吊挂系统及方法 (Cofferdam hanging system and method ) 是由 黄丁根 徐启利 王东辉 张红心 张立超 肖世波 马晓东 沈大才 潘博 顿琳 刘科 于 2019-08-28 设计创作，主要内容包括：本发明公开了一种围堰吊挂系统及方法,涉及围堰施工技术领域,包括至少两个支撑单元,每个支撑单元均包括至少两个支撑梁、一扁担梁、两个第一锚梁、连续千斤顶、钢绞线和两个第二锚梁,扁担梁滑动组设于所有支撑梁上,且扁担梁和支撑梁之间连接有若干用于调节扁担梁位置的第一千斤顶；第一锚梁顶部与扁担梁销接,底部用于与待下放围堰的顶部销接；连续千斤顶设于扁担梁上；钢绞线依次穿过连续千斤顶、扁担梁和第一锚梁后与第一锚梁的底部相连；两个第二锚梁设于扁担梁上,第二锚梁底部与扁担梁销接,第二锚梁顶部用于通过钢丝绳与吊装设备相连。本发明提供的围堰吊挂系统,将吊装和下放系统结合起来,且便于吊点转换,施工效率高。(The invention discloses a cofferdam hanging system and a cofferdam hanging method, which relate to the technical field of cofferdam construction and comprise at least two supporting units, wherein each supporting unit comprises at least two supporting beams, a shoulder pole beam, two first anchor beams, a continuous jack, a steel strand and two second anchor beams; the top of the first anchor beam is in pin joint with the shoulder pole beam, and the bottom of the first anchor beam is in pin joint with the top of the cofferdam to be placed; the continuous jack is arranged on the shoulder pole beam; the steel strand sequentially passes through the continuous jack, the carrying pole beam and the first anchor beam and then is connected with the bottom of the first anchor beam; the two second anchor beams are arranged on the carrying pole beam, the bottom of each second anchor beam is in pin joint with the carrying pole beam, and the top of each second anchor beam is connected with the hoisting equipment through a steel wire rope. The cofferdam hanging system provided by the invention combines the hoisting and lowering systems, is convenient for hoisting point conversion and has high construction efficiency.)

1. A cofferdam hanging system, comprising:

at least two support units, each support unit includes:

at least two supporting beams (2) which are used for being erected on the steel casing (1);

the carrying pole beam (3) is assembled on all the supporting beams (2) in a sliding way, and a plurality of first jacks (23) used for adjusting the positions of the carrying pole beam (3) are connected between the carrying pole beam (3) and the supporting beams (2);

the two first anchor beams (4) are respectively positioned at two ends of the shoulder pole beam (3), the top of each first anchor beam (4) is in pin joint with the shoulder pole beam (3), and the bottom of each first anchor beam is in pin joint with the top of the cofferdam (A) to be lowered;

the number of the continuous jacks (5) corresponds to that of the first anchor beams (4), and the continuous jacks (5) are arranged on the shoulder pole beams (3);

the number of the steel strands (6) corresponds to that of the first anchor beam (4), and the steel strands (6) sequentially penetrate through the continuous jack (5), the carrying pole beam (3) and the first anchor beam (4) and then are connected with the bottom of the first anchor beam (4);

the two second anchor beams (7) are arranged on the shoulder pole beam (3), the bottom of each second anchor beam (7) is in pin joint with the shoulder pole beam (3), and the top of each second anchor beam (7) is connected with hoisting equipment through a steel wire rope (8).

2. A cofferdam hanging system according to claim 1, characterized in that: each supporting unit further comprises two distribution beams (9), at least one first lug plate (91) is arranged at the lower end of each distribution beam (9), the shoulder pole beam (3) is penetrated by the first lug plate (91), and the shoulder pole beam (3) and the first anchor beam (4) are connected through the first lug plate (91) in a pin mode.

3. A cofferdam hanging system according to claim 1, characterized in that: a second lug plate (32) is arranged on the shoulder pole beam (3), and the bottom of the second anchor beam (7) is connected with the shoulder pole beam (3) through the second lug plate (32) in a pin joint mode.

4. A cofferdam hanging system according to claim 1, characterized in that: at least one cross brace (33) is arranged between the shoulder pole beams (3) of two adjacent supporting units.

5. A cofferdam hanging system according to claim 1, characterized in that: one pair of supports (71) is correspondingly arranged between the second anchor beams (7) of the two adjacent supporting units, and the pair of supports (71) is perpendicular to the shoulder pole beam (3).

6. A cofferdam hanging system according to claim 1, characterized in that:

each support beam (2) is provided with two first reaction force seats (21) which are arranged oppositely and at least one second reaction force seat (22) which is arranged laterally;

the carrying pole beam (3) is positioned between the two first reaction seats (21), the carrying pole beam (3) is provided with a third reaction seat (31) matched with the second reaction seat (22), and first jacks (23) are arranged between the first reaction seat (21) and the carrying pole beam (3) and between the second reaction seat (22) and the third reaction seat (31).

7. A cofferdam hanging system according to claim 6, characterized in that: every all be equipped with two second reaction seats (22) that the side direction set up on supporting beam (2), and two second reaction seat (22) set up side by side.

8. A cofferdam hanging system according to claim 6, characterized in that: each supporting beam (2) is provided with four second reaction seats (22) which are arranged laterally, and the four second reaction seats (22) are symmetrically distributed along two axes of the supporting beam (2).

9. A cofferdam hanging system according to claim 1, characterized in that: the shoulder pole beam (3) is formed by splicing two hollow rectangular box beams.

10. Cofferdam hanging method based on a cofferdam hanging system according to any of claims 1 to 9, characterized in that it comprises the steps of:

erecting a plurality of supporting beams (2) on a steel casing (1) in advance, and mounting a first jack (23) on the supporting beams (2);

connecting a cofferdam (A) to be placed with the bottom of a first anchor beam (4), hoisting the cofferdam by using hoisting equipment, and placing a shoulder pole beam (3) on the supporting beam (2) to finish hoisting;

adjusting the position of the shoulder pole beam (3) by using the first jack (23) so as to adjust the cofferdam (A) to be lowered to a design position and finish the position adjustment;

a continuous jack (5) and a steel strand (6) are arranged on the shoulder pole beam (3), and the steel strand (6) sequentially penetrates through the continuous jack (5), the shoulder pole beam (3) and the first anchor beam (4) and then is connected with the bottom of the first anchor beam (4);

and releasing the pin joint between the top of the first anchor beam (4) and the shoulder pole beam (3), lifting the continuous jack (5), and lowering the cofferdam through the steel strand (6).

Technical Field

The invention relates to the technical field of cofferdam construction, in particular to a cofferdam hanging system and a cofferdam hanging method.

Background

When the bearing platform construction is carried out on the bridge foundation, a hanging system during cofferdam hoisting requires rigid hanging with small deformation and reliable connection, the asynchronism of a hoisting point is considered during the lowering, the lowering system also requires flexible hanging with high strength and small rigidity, and the plane position of the cofferdam needs to be adjusted firstly before the lowering after the hoisting. Therefore, the whole construction process needs to involve three aspects of hoisting, position adjustment and lowering, higher requirements for hoisting are provided, and the problem is encountered particularly when a highway-railway dual-purpose bridge for the puddle and the strait is built.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a cofferdam hanging system which combines a hoisting system and a lowering system, is convenient for hoisting point conversion and has high construction efficiency.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:

a cofferdam hanging system comprising:

at least two support units, each support unit includes:

at least two supporting beams which are used for being erected on the steel casing;

the carrying pole beam is assembled on all the supporting beams in a sliding mode, and a plurality of first jacks used for adjusting the position of the carrying pole beam are connected between the carrying pole beam and the supporting beams;

the two first anchor beams are respectively positioned at two ends of the shoulder pole beam, the top of each first anchor beam is in pin joint with the shoulder pole beam, and the bottom of each first anchor beam is in pin joint with the top of the cofferdam to be placed;

the number of the continuous jacks corresponds to that of the first anchor beams, and the continuous jacks are arranged on the shoulder pole beams;

the number of the steel strands corresponds to that of the first anchor beam, and the steel strands sequentially penetrate through the continuous jack, the shoulder pole beam and the first anchor beam and then are connected with the bottom of the first anchor beam;

the two second anchor beams are arranged on the shoulder pole beam, the bottom of each second anchor beam is in pin joint with the shoulder pole beam, and the top of each second anchor beam is connected with hoisting equipment through a steel wire rope.

On the basis of the technical scheme, each supporting unit further comprises two distribution beams, at least one first lug plate is arranged at the lower end of each distribution beam, the shoulder pole beam is penetrated by the first lug plate, and the shoulder pole beam and the first anchor beam are connected through the first lug plate in a pin joint mode.

On the basis of the technical scheme, a second lug plate is arranged on the shoulder pole beam, and the bottom of the second anchor beam is connected with the shoulder pole beam through the second lug plate in a pin mode.

On the basis of the technical scheme, at least one cross brace is arranged between the shoulder pole beams of two adjacent supporting units.

On the basis of the technical scheme, a pair of supports is correspondingly arranged between the second anchor beams of two adjacent support units, and the pair of supports is perpendicular to the shoulder pole beam.

On the basis of the technical scheme, each support beam is provided with two first reaction seats which are oppositely arranged and at least one second reaction seat which is laterally arranged;

the carrying pole beam is positioned between the two first counter-force seats, the carrying pole beam is provided with a third counter-force seat matched with the second counter-force seat, and first jacks are arranged between the first counter-force seat and the carrying pole beam and between the second counter-force seat and the third counter-force seat.

On the basis of the technical scheme, each supporting beam is provided with two second reaction seats which are arranged laterally, and the two second reaction seats are arranged side by side.

On the basis of the technical scheme, four second reaction seats which are arranged laterally are arranged on each supporting beam, and the four second reaction seats are symmetrically distributed along two axes of the supporting beam.

On the basis of the technical scheme, the shoulder pole beam is formed by splicing two hollow rectangular box beams.

The invention also provides a cofferdam hanging method based on the cofferdam hanging system, which comprises the following steps:

erecting a plurality of supporting beams on a steel casing in advance, and mounting a first jack on the supporting beams;

connecting the cofferdam to be placed with the bottom of the first anchor beam, hoisting the cofferdam by using hoisting equipment, and placing the shoulder pole beam on the supporting beam to finish hoisting;

adjusting the position of the shoulder pole beam by using the first jack so as to adjust the cofferdam to be lowered to a designed position and finish positioning;

a continuous jack and a steel strand are installed on the shoulder pole beam, and the steel strand sequentially penetrates through the continuous jack, the shoulder pole beam and the first anchor beam and then is connected with the bottom of the first anchor beam;

and releasing the pin joint between the top of the first anchor beam and the shoulder pole beam, lifting the continuous jack, and lowering the cofferdam through the steel strand.

Compared with the prior art, the invention has the advantages that: in the cofferdam hanging system, the shoulder pole beam, the first anchor beam, the second anchor beam and the steel wire rope are used for hoisting the cofferdam to be placed in a hoisting state, and after the hoisting is finished, the cofferdam to be placed reaches a preset position, the continuous jack and the steel strand are used for placing the cofferdam to be placed, so that the hoisting and placing system is combined, the hoisting point conversion is convenient, and the construction efficiency is high.

Drawings

FIG. 1 is a top view of a cofferdam hanging system in an embodiment of the invention;

FIG. 2 is a side view of FIG. 1 taken along the direction 1-1;

FIG. 3 is a side view of FIG. 1 taken in the direction 2-2;

FIG. 4 is an enlarged view of a portion of FIG. 1;

FIG. 5 is an enlarged view of a portion of FIG. 3;

FIG. 6 is a side view of FIG. 5;

fig. 7 is a partially enlarged view of fig. 2.

In the figure: 1-steel pile casing, 2-supporting beam, 21-first reaction seat, 22-second reaction seat, 23-first jack, 3-carrying pole beam, 31-third reaction seat, 32-second lug plate, 33-cross brace, 4-first anchor beam, 5-continuous jack, 6-steel strand, 7-second anchor beam, 71-counter brace, 8-steel wire rope, 9-distributing beam, 91-first lug plate, A-cofferdam and A1-lifting lug.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Referring to fig. 1 to 6, an embodiment of the present invention provides a cofferdam hanging system, which includes at least two supporting units, each of which includes at least two supporting beams 2, a carrying pole beam 3, two first anchor beams 4, a continuous jack 5, a steel strand 6, and two second anchor beams 7.

The supporting beam 2 is used for being erected on the steel casing 1; the carrying pole beam 3 is assembled on all the supporting beams 2 in a sliding way, and a plurality of first jacks 23 used for adjusting the position of the carrying pole beam 3 are connected between the carrying pole beam 3 and the supporting beams 2; the two first anchor beams 4 are respectively positioned at two ends of the shoulder pole beam 3, the top of each first anchor beam 4 is in pin joint with the shoulder pole beam 3, and the bottom of each first anchor beam 4 is in pin joint with the top of the cofferdam A to be placed; the number of the continuous jacks 5 corresponds to that of the first anchor beams 4, and the continuous jacks 5 are arranged on the shoulder pole beams 3; the number of the steel strands 6 corresponds to that of the first anchor beam 4, and the steel strands 6 sequentially penetrate through the continuous jack 5, the shoulder pole beam 3 and the first anchor beam 4 and then are connected with the bottom of the first anchor beam 4; two second anchor beams 7 are arranged on the carrying pole beam 3, the bottom of each second anchor beam 7 is connected with the carrying pole beam 3 in a pin mode, and the top of each second anchor beam 7 is connected with hoisting equipment through a steel wire rope 8.

The working process of the cofferdam hanging system is as follows: erecting a plurality of supporting beams 2 on a steel casing 1 in advance, and mounting a plurality of first jacks 23 on the supporting beams 2; connecting the top of the side wall of the cofferdam A to be placed with the bottom of the first anchor beam 4, hoisting the cofferdam by using hoisting equipment, and placing the shoulder pole beam 3 on the supporting beam 2 to finish hoisting; then, the first jack 23 is used for pushing or stretching the shoulder pole beam 3 to adjust the position of the shoulder pole beam 3, so that the cofferdam A to be lowered is adjusted to the designed position, and the position adjustment is completed; a continuous jack 5 and a steel strand 6 are arranged on the shoulder pole beam 3, and the steel strand 6 sequentially penetrates through the continuous jack 5, the shoulder pole beam 3 and the first anchor beam 4 and then is connected with the bottom of the first anchor beam 4; and releasing the pin joint of the bottom of the first anchor beam 4 and the cofferdam A to be lowered, jacking the continuous jack 5, and lowering the cofferdam through the steel strand 6.

In the cofferdam hanging system of the embodiment of the invention, the carrying pole beam 3, the first anchor beam 4, the second anchor beam 7 and the steel wire rope 8 are used for hoisting the cofferdam A to be lowered in a hoisting state, and after the hoisting is finished, the cofferdam A to be lowered reaches a preset position, the continuous jack 5 and the steel strand 6 are used for lowering the cofferdam A, so that the hoisting and lowering system is combined, the hoisting point conversion is convenient, and the construction efficiency is high.

Referring to fig. 6, each supporting unit further includes two distributing beams 9, at least one first ear plate 91 is disposed at a lower end of each distributing beam 9, the first ear plate 91 penetrates through the carrying pole beam 3, and the carrying pole beam 3 and the first anchor beam 4 are connected by a pin through the first ear plate 91.

Referring to fig. 3, a second ear plate 32 is provided on the shoulder pole beam 3, and the bottom of the second anchor beam 7 is pinned with the shoulder pole beam 3 through the second ear plate 32.

In the embodiment of the invention, all the parts are connected by the pin shaft, so that the installation and the removal are convenient in the hoisting and lowering states, and the construction efficiency is greatly improved.

Referring to fig. 1, furthermore, at least one cross brace 33 is arranged between the carrying pole beams 3 of two adjacent supporting units, so that the whole hanging system is more stable in structure and better in balance.

Referring to fig. 1 and 2, further, a pair of braces 71 is correspondingly arranged between the second anchor beams 7 of two adjacent supporting units, the braces 71 are perpendicular to the shoulder pole beam 3, and the braces 71 have the function of balancing the acting force of the whole system during hoisting and ensuring a more stable structure.

As shown in fig. 4, specifically, each of the support beams 2 is provided with two first reaction force seats 21 arranged oppositely and at least one second reaction force seat 22 arranged laterally;

the carrying pole beam 3 is positioned between the two first reaction force seats 21, the carrying pole beam 3 is provided with a third reaction force seat 31 matched with the second reaction force seat 22, and first jacks 23 are respectively arranged between the first reaction force seat 21 and the carrying pole beam 3 and between the second reaction force seat 22 and the third reaction force seat 31.

In the embodiment of the present invention, the first jack 23 between the first reaction base 21 and the spreader beam 3 is used to adjust the position of the spreader beam 3 in the width direction thereof, and the first jack 23 between the second reaction base 22 and the third reaction base 31 is used to adjust the position of the spreader beam 3 in the length direction thereof.

More specifically, each of the support beams 2 is provided with two laterally disposed second reaction force seats 22, and the two second reaction force seats 22 are disposed side by side.

Every all be equipped with the second counter-force seat 22 that four sides set up on supporting beam 2, and four second counter-force seat 22 follows two axis symmetric distributions of supporting beam 2 need be with carrying pole roof beam 3 when adjusting left, adjust be located left two jack can, need with carrying pole roof beam 3 when adjusting right, adjust be located the right side two jack can to it is more convenient to adjust.

In the embodiment of the present invention, the carrying pole beam 3 is formed by splicing two hollow rectangular box beams, a vertical slot is formed in the position of the first anchor beam 4 of the carrying pole beam 3 for the steel strand 6 to pass through, and the first ear plate 91 on the distribution beam 9 passes through the vertical slot of the carrying pole beam 3 and is connected with the first anchor beam 4 by a pin.

In practical application, the top of the side wall of the cofferdam A to be lowered is provided with a lifting lug A1, the two ends of the first anchor beam 4 are provided with pin holes, the pin hole at the upper end is in pin joint with the first lug plate 91 on the distribution beam 9, and the pin hole at the lower end is in pin joint with the lifting lug A1.

The embodiment of the invention also provides a cofferdam hanging method based on the cofferdam hanging system, which comprises the following steps:

erecting a plurality of supporting beams 2 on a steel casing 1 in advance, and mounting a first jack 23 on the supporting beams 2;

connecting the cofferdam A to be placed with the bottom of the first anchor beam 4, hoisting the cofferdam by using hoisting equipment, and placing the carrying pole beam 3 on the supporting beam 2 to finish hoisting;

adjusting the position of the shoulder pole beam 3 by using the first jack 23 so as to adjust the cofferdam A to be lowered to a design position and finish positioning;

a continuous jack 5 and a steel strand 6 are arranged on the shoulder pole beam 3, and the steel strand 6 sequentially penetrates through the continuous jack 5, the shoulder pole beam 3 and the first anchor beam 4 and then is connected with the bottom of the first anchor beam 4;

and releasing the pin joint between the top of the first anchor beam 4 and the shoulder pole beam 3, lifting the continuous jack 5, and lowering the cofferdam through the steel strand 6.

In the embodiment of the invention, the supporting beam 2 is welded on the steel casing 1, and the surface of the supporting beam has a sliding surface, so that the carrying pole beam 3 can move under the pushing or stretching action of the first jack 23. Moreover, the top of the first anchor beam 4 is welded with the shoulder pole beam 3, so that the hanging system is firmer.

In the cofferdam hanging method of the embodiment of the invention, the carrying pole beam 3, the first anchor beam 4, the second anchor beam 7 and the steel wire rope 8 are used for hoisting the cofferdam A to be lowered in a hoisting state, and after the hoisting is finished, the cofferdam A to be lowered reaches a preset position, the continuous jack 5 and the steel strand 6 are used for lowering the cofferdam A, so that a hoisting system and a lowering system are combined, the hoisting point conversion is convenient, and the construction efficiency is high.

The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.