Steel cofferdam structure for opening hole in bottom wall of pool

Abstract

The utility model discloses a steel cofferdam structure for opening a hole in the bottom wall of a pool, which relates to the technical field of steel cofferdams and comprises main beams arranged at equal intervals and a fence panel connected to the outer sides of the main beams, the inner sides of the main beams are connected with back pull rods, a plurality of main beams are connected with longitudinal beams, the two ends of each main beam are connected with edge beams, and the edge beams are connected with the fence panel. The edge beams make contact with the wall of the pool, the two ends of the fence panel are connected with side edge water stop assemblies, and the bottom of the fence panel is connected with a bottom water stop assembly. According to the steel cofferdam structure for opening the hole in the bottom wall of the water pool, the enclosure panel part is arranged on the periphery of the main beam, and the enclosure panel part, the pool bottom, the pool wall and the three-face steel cofferdam of the raw water pool can jointly form a closed temporary water insulation structure, so that construction can be conveniently carried out on the side wall or the bottom of the pool, convenience is improved, and meanwhile normal use of the raw water pool is not affected.

Description

Technical Field

[0001] This utility model relates to the field of steel cofferdam technology, and more specifically to a steel cofferdam structure for opening holes in the bottom wall of a water tank. Background Technology

[0002] Steel cofferdams are primarily used to create a dry working environment when constructing foundations or repairing underwater structures. They play a crucial role when openings are needed in the bottom wall of a water tank for repairs, renovations, or new construction, such as tunnel or bridge foundations. The basic function of a steel cofferdam is to create a waterproof, enclosed space in the water, allowing the water to be pumped out so workers can operate in dry conditions. For openings in the bottom wall of a water tank, steel cofferdams ensure the area around the opening remains dry, allowing necessary construction operations such as concrete pouring, welding, or other forms of repair work.

[0003] Chinese patent application number 202222870833.6 discloses a steel cofferdam, the structure of which includes a base plate and a cofferdam body composed of multiple sections of annular cofferdam connected together. The base plate has a positioning groove on its circumference, and the bottom of the cofferdam body has a positioning plate on its circumference for insertion into the positioning groove. Each section of the annular cofferdam is composed of multiple side plates, each side plate including an inner plate and an outer plate, with an inter-plate support between the inner and outer plates. The lower side plates of the cofferdam body are filled with concrete. This steel cofferdam still has the following problems in use:

[0004] When it is necessary to carry out bottom or side wall work on structures such as square pools, the lack of a stable bottom support structure will make it inconvenient to use. Furthermore, deformation may occur due to water pressure, and water leakage may occur at the connection between the cofferdam and the pool wall due to gaps.

[0005] Therefore, it is necessary to propose a steel cofferdam structure for opening holes in the bottom wall of a water tank to solve the above problems. Utility Model Content

[0006] To address the above problems, this utility model provides a steel cofferdam structure for opening holes in the bottom wall of a water tank, which allows for uninterrupted construction of the water tank wall while also providing dual waterproofing capabilities to improve sealing.

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A steel cofferdam structure for opening holes in the bottom wall of a water tank includes main beams arranged at equal intervals, a retaining panel connected to the outside of the main beams, a back tie rod connected to the inside of the main beams, longitudinal beams connected to multiple main beams, side beams connected to both ends of the main beams, the side beams contacting the water tank wall, side water-stop components connected to both ends of the retaining panel, and a bottom water-stop component connected to the bottom of the retaining panel.

[0009] The side water-stop assembly includes a side water-stop strip and a reinforcing water-stop strip. The side water-stop strip contacts the enclosure panel. The enclosure panel has side fixing plates on both sides. The side fixing plates fix the side water-stop strip and the reinforcing water-stop strip to the enclosure panel with bolts.

[0010] The bottom waterproofing component includes bottom waterproof strips located on both sides of the enclosure panel. The bottom sides of the enclosure panel are provided with inner fixing plates and outer fixing plates. The inner fixing plates and outer fixing plates are used to fix the bottom waterproof strips to the inner and outer sides of the enclosure panel by bolts.

[0011] Preferably, the reinforced waterstop strip includes a connecting part, a fixing part located at both ends, and a sealing part, wherein the sealing part is in contact with the wall of the pool.

[0012] Preferably, the two ends of the enclosure panel are connected to reinforcing rods, the ends of the reinforcing rods are connected to pressure rods, and the pressure rods are in contact with the sealing part.

[0013] Preferably, the top of the main beam is connected to a lifting lug.

[0014] Preferably, an adjustment ring is connected to the side of the enclosure panel away from the side beam.

[0015] Preferably, the top of the side beam is higher than the enclosure panel.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This device, by setting up enclosure panel components around the main beam, can form a closed temporary water-proof structure together with the bottom, walls, and three steel cofferdams of the original water tank, which facilitates construction on the side walls or bottom of the pond, improves convenience, and does not affect the normal use of the original water tank.

[0018] 2. This device is equipped with side water-stop components and bottom water-stop components on both sides and bottom of the enclosure panel. The water-stop components have a double water-stopping function, which improves the sealing of the enclosure area. At the same time, the pressure bar has the function of squeezing the sealing part. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the enclosure panel and main beam structure in this utility model;

[0020] Figure 2 This is a top view of the present invention installed on the wall of a water tank;

[0021] Figure 3 This is a schematic diagram of the side water-stop component structure in this utility model;

[0022] Figure 4 This is a schematic diagram of the bottom water-stop component structure in this utility model;

[0023] Figure 5 This is a schematic diagram of the reinforced waterstop strip and pressure bar structure in this utility model.

[0024] Figure label:

[0025] 101. Main beam; 102. Enclosure panel; 103. Back tie rod; 104. Longitudinal beam; 105. Side beam; 106. Side waterstop assembly; 107. Bottom waterstop assembly; 108. Side waterstop strip; 109. Reinforcing waterstop strip; 110. Side fixing plate; 111. Bottom waterproof strip; 112. Inner fixing plate; 113. Outer fixing plate; 114. Connecting part; 115. Fixing part; 116. Sealing part; 117. Reinforcing rod; 118. Pressure rod; 119. Lifting lug; 120. Adjusting ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5A steel cofferdam structure for opening holes in the bottom wall of a water tank includes main beams 101 spaced at equal intervals and a retaining panel 102 connected to the outside of the main beams 101. The retaining panel 102 blocks the water flow in the pond, while the main beams 101 provide lateral support to prevent deformation of the retaining panel 102 due to excessive water pressure. A back tie rod 103 is connected to the inner side of each main beam 101 to reinforce the support. Longitudinal beams 104 are connected to multiple main beams 101 for vertical support. The two ends of the enclosure panel 101 are connected to side beams 105, which are in contact with the pool wall and fit against the pool wall. They are fixed to the pool wall by expansion bolts. The two ends of the enclosure panel 102 are connected to side water-stop components 106, which are used to waterproof the connection between the side beams 105 and the wall to prevent water leakage from the side wall. The bottom of the enclosure panel 102 is connected to a bottom water-stop component 107, which can press against the bottom wall of the pool by its own weight.

[0028] The side water-stop component 106 includes a side water-stop strip 108 and a reinforcing water-stop strip 109. The dual arrangement of the side water-stop strip 108 and the reinforcing water-stop strip 109 provides the side wall with dual waterproofing capabilities. The side water-stop strip 108 and the reinforcing water-stop strip 109 protrude beyond the side beam 105, specifically, the protrusion length is 10mm. The side water-stop strip 108 contacts the enclosure panel 102. The enclosure panel 102 has side fixing plates 110 on both sides. The side fixing plates 110 fix the side water-stop strip 108 and the reinforcing water-stop strip 109 to the enclosure panel 102 with bolts.

[0029] The bottom waterproofing component 107 includes bottom waterproof strips 111 located on both sides of the enclosure panel 102. Two bottom waterproof strips 111 are provided, located on the inner and outer sides of the enclosure panel 102 respectively. The bottom sides of the enclosure panel 102 are provided with inner fixing plates 112 and outer fixing plates 113. The bottom waterproof strips 111 are fixed to the bottom of the enclosure panel 102 by the inner fixing plates 112 and outer fixing plates 113. The inner fixing plates 112 and outer fixing plates 113 are used to fix the bottom waterproof strips 111 to the inner and outer sides of the enclosure panel 102 by bolts.

[0030] Specifically, refer to Figure 3 and Figure 5The reinforcing waterstop strip 109 includes a connecting part 114, a fixing part 115 located at both ends, and a sealing part 116. The reinforcing waterstop strip 109 is used to contact the pool wall. The sealing part 116 is circular and is pressed against the pool wall by the pressure rod 118 to improve the sealing performance. It has a compression margin of 10mm. The sealing part 116 is in contact with the pool wall.

[0031] Specifically, refer to Figure 5 The two ends of the enclosure panel 102 are connected to reinforcing rods 117, which are welded to the enclosure panel 102. The end of the reinforcing rod 117 is connected to a pressure rod 118, which exerts a squeezing effect on the reinforcing waterstop strip 109 to improve the sealing between the reinforcing waterstop strip 109 and the wall. The pressure rod 118 is in contact with the sealing part 116.

[0032] Specifically, refer to Figure 1 The top of the main beam 101 is connected to a lifting lug 119, which facilitates the hoisting of the equipment into the water tank by a crane.

[0033] Specifically, refer to Figure 1 The side of the enclosure panel 102 away from the side beam 105 is connected to an adjustment ring 120. When it is lifted, the adjustment ring 120 on the side wall can be adjusted to adjust the overall position by ropes, so as to lower it to the designated location.

[0034] Specifically, refer to Figure 1 The top of the side beam 105 should be higher than the enclosure panel 102 to facilitate the installation of expansion bolts on the top of the side beam 105.

[0035] In this embodiment, the silt at the bottom of the lowering position is first cleared out, and then the whole unit is hoisted to the designated position by a crane. During this process, the position is adjusted by adjusting the ropes in the adjusting ring 120. After the lowering is placed to the designated position, the water in the area enclosed by the enclosure panel 102 and the wall is pumped out by a water pump. When it is observed that there is no water leakage inside, the side beam 105 is fixed to the wall of the pool by expansion bolts. At this time, construction can be carried out in the enclosed area.

[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A steel cofferdam structure for opening a hole in a bottom wall of a pool, characterized by: The utility model relates to a kind of pool enclosure, including equidistantly arranged main girder (101), connect to the enclosure panel (102) outside main girder (101), the inner side of the main girder (101) is connected with back pull rod (103), multiple the main girder (101) is connected with longitudinal beam (104), the both ends of the main girder (101) are connected with edge beam (105), the edge beam (105) is contacted with pool wall, the both ends of the enclosure panel (102) are connected with side edge water stop component (106), the bottom of the enclosure panel (102) is connected with bottom water stop component (107); The side edge water stop component (106) includes side edge water stop strip (108) and reinforcing water stop strip (109), the side edge water stop strip (108) is contacted with enclosure panel (102), both sides of the enclosure panel (102) are equipped with side fixed plate (110), and the side edge water stop strip (108) and reinforcing water stop strip (109) are fixed on the enclosure panel (102) by bolt of side fixed plate (110); The bottom water stop component (107) includes bottom waterproof strip (111) located at both sides of the enclosure panel (102), both sides of the bottom of the enclosure panel (102) are equipped with inner fixed plate (112) and outer fixed plate (113), and the inner fixed plate (112) and outer fixed plate (113) are fixed on the inner and outer sides of the enclosure panel (102) by bolt of bottom waterproof strip (111).

2. The steel cofferdam structure for opening a hole in a bottom wall of a pool according to claim 1, characterized in that: The reinforcing water stop strip (109) includes connecting portion (114), fixed portion (115) at both ends and sealing portion (116), and the sealing portion (116) is contacted with pool wall.

3. The steel cofferdam structure for opening a hole in a bottom wall of a pool according to claim 2, characterized in that: The both ends of the enclosure panel (102) are connected with reinforcing rod (117), and the end of the reinforcing rod (117) is connected with pressing rod (118), and the pressing rod (118) is contacted with sealing portion (116).

4. The steel cofferdam structure for opening a hole in a bottom wall of a pool according to claim 1, characterized in that: The top of the main girder (101) is connected with lifting lug (119).

5. The steel cofferdam structure for opening a hole in a bottom wall of a pool according to claim 1, characterized in that: The side of the enclosure panel (102) away from edge beam (105) is connected with adjusting ring (120).

6. The steel cofferdam structure for opening a hole in a bottom wall of a pool according to claim 1, characterized by: The top of the edge beam (105) is higher than the enclosure panel (102).

Images