CN210216477U

CN210216477U - Open caisson structure with stiffening rib wall outside

Info

Publication number: CN210216477U
Application number: CN201920796145.5U
Authority: CN
Inventors: Yonggao Yin; 殷永高; Zhu Yu; 余竹; Weixin Ren; 任伟新; Jianluan Li; 李剑鸾; Fuchun Zhu; 朱福春; Xianmin Zhao; 赵先民; Xiaoguang Luo; 罗晓光; Yishu Huang; 黄义殳; Shaohua Li; 李绍华; Tao Li; 李涛
Original assignee: Anhui Transportation Holding Group Co Ltd
Current assignee: Anhui Transportation Holding Group Co Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-03-31
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses an open caisson structure of outside area stiffening rib wall, characterized by: the outer side wall of the shaft is provided with rib walls along the axial direction of the shaft, the rib walls protrude and extend in the radial direction of the shaft to form a fin shape, and a plurality of rib walls are uniformly distributed on the outer circumference of the shaft. The utility model effectively improves the rigidity of the open caisson foundation in an economical and reasonable way, and reduces the transverse deflection of the foundation; through set up the root key on the lateral wall of pit shaft, can form the root formula open caisson basis of outside area stiffening rib wall, but wide application in engineering such as bridge, building, municipal administration, mine, water conservancy, ocean.

Description

Open caisson structure with stiffening rib wall outside

Technical Field

The utility model relates to an underground and aquatic structures, more specifically the open caisson structure that says so.

Background

The horizontal load of deep water and high-rise structures such as a large-span bridge cable tower, a deep water high-rise pile cap, a high-rise building, a tower frame, an ocean wind driven generator and the like is far higher than that of a common building, has the same important property as the vertical load, and sometimes even becomes a main factor for controlling the structure design. The structure is sensitive to foundation deflection, and in order to ensure the safety of the structure, the uneven settlement of the foundation and the displacement under the action of load are strictly limited.

Increasing the stiffness of the foundation is one of the important ways to solve the above problems, and it is common practice to enlarge the scale of the foundation, increase the size of the structural section, and increase the foundation burial depth, but the result is the increase of the construction period and the cost. Whether the rigidity of the foundation can be economically and reasonably improved and the construction cost can be reduced on the premise of ensuring the design requirements or not becomes one of the bottlenecks which restrict the rapid development of high-rise structures (particularly high-rise structures in deep soft covering layers and deep water areas).

The open caisson is a hollow shaft cylindrical structure with an upper opening and a lower opening, soil bodies in the well and a well barrel are removed, and the open caisson is sunk to an underground structure with a certain depth by means of dead weight or a sinking assisting measure, has the advantages of good integrity, high rigidity, deep sinking depth, few used machines, simplicity in operation, easiness in construction and the like, and is widely applied to the engineering of bridges, building construction, municipal administration, mines, water conservancy, oceans and the like.

In the prior art, the requirement of increasing the rigidity of the open caisson is met by increasing the plane size of the open caisson and increasing the wall thickness of the shaft, but the construction period is prolonged and the cost is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a for avoiding the problem that above-mentioned prior art exists, provide an outside open caisson structure of taking stiffening rib wall to economic reasonable mode increase basis rigidity.

The utility model discloses a solve technical problem and adopt following technical scheme:

the open caisson structure with the stiffening rib walls outside has the characteristics that: the outer side wall of the shaft is provided with rib walls along the axial direction of the shaft, the rib walls protrude and extend in the radial direction of the shaft to form a fin shape, and a plurality of rib walls are uniformly distributed on the outer circumference of the shaft.

The utility model discloses the open caisson structure of outside area stiffening rib wall also lies in: the rib wall and the shaft are cast together.

The utility model discloses the open caisson structure of outside area stiffening rib wall also lies in: and (3) performing sectional and integral pouring construction on the shaft or adopting a prefabricated assembly type construction mode.

The utility model discloses the open caisson structure of outside area stiffening rib wall also lies in: the bottom of the rib wall is provided with a cutting edge, and the end resistance in sinking is reduced by the cutting edge.

The utility model discloses the open caisson structure of outside area stiffening rib wall also lies in: and arranging a root key on the outer side wall of the shaft, wherein the root key is arranged at the position of the rib wall.

Compared with the prior art, the utility model discloses beneficial effect embodies:

according to the mechanics principle, the rib wall arranged outside the shaft effectively increases the vertical bending rigidity of the foundation, and the open caisson effectively improves the rigidity of the open caisson by adding partial rib wall materials under the condition of not changing the plane size and the wall thickness of the shaft and the workload of soil sampling in the well; the utility model discloses structural style is economical reasonable.

Drawings

FIG. 1 is a schematic diagram of a well structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a well bore according to the present invention;

fig. 3 is a basic schematic diagram of the open caisson with a root key according to the present invention.

Reference numbers in the figures: 1 shaft, 2 ribbed walls, 3 keys and 4 blade feet.

Detailed Description

Referring to fig. 1, 2 and 3, in the open caisson structure with the external stiffening rib walls in the embodiment, the rib walls 2 are arranged on the outer side wall of the shaft 1 along the axial direction of the shaft 1, the rib walls 2 protrude and extend in a fin shape along the radial direction of the shaft 1, a plurality of rib walls are uniformly distributed on the outer circumference of the shaft 1, and the rib walls are used for improving the rigidity of the open caisson foundation and reducing the transverse displacement of the open caisson foundation.

In specific implementation, the corresponding technical measures also include:

the rib wall 2 and the shaft 1 are cast together; the shaft 1 is constructed by segmental and integral pouring, or a prefabricated construction mode is adopted; the bottom of the rib wall 2 is provided with the blade foot 4, and the end resistance when sinking is reduced by the blade foot, so that the sinking of soil cutting is facilitated.

In the concrete implementation, set up root key 3 on the lateral wall of pit shaft 1, root key 3 is installed in rib wall 2 position department, forms the root formula open caisson basis of outside area stiffening rib wall, can the wide application in engineering such as bridge, building, municipal administration, mine, water conservancy, ocean.

Claims

1. The open caisson structure with the external stiffening rib wall is characterized in that: the outer side wall of the shaft (1) is provided with rib walls (2) along the axial direction of the shaft (1), the rib walls (2) protrude and extend in the radial direction of the shaft (1) to form fins, and a plurality of rib walls are uniformly distributed on the outer circumference of the shaft (1).

2. The open caisson construction with external stiffened ribbed walls of claim 1, wherein: the rib wall (2) and the shaft (1) are poured and formed together.

3. The open caisson construction with external stiffened ribbed walls according to claim 2 wherein: the shaft (1) is constructed by segmental and integral pouring or by adopting a prefabricated construction mode.

4. The open caisson construction with external stiffened ribbed walls of claim 1, wherein: the bottom of the rib wall (2) is provided with a cutting edge (4), and the end resistance in sinking is reduced by the cutting edge (4).

5. The open caisson construction with external stiffened ribbed walls of claim 1, wherein: the outer side wall of the shaft (1) is provided with a root key (3), and the root key (3) is arranged at the position of the rib wall (2).