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Integral walking mobile cofferdam

Active Publication Date: 2020-05-22
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the problem that the existing integral cofferdam is relatively heavy and not suitable for moving, and the existing combined cofferdam has the problems of poor strength and very troublesome installation and disassembly, the present invention provides a cofferdam with high stability under working conditions and which can be moved as a whole weir

Method used

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  • Integral walking mobile cofferdam
  • Integral walking mobile cofferdam
  • Integral walking mobile cofferdam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: a kind of overall walking type mobile cofferdam, as Figure 1-6 As shown, it includes a traction mechanism arranged on the horse track and a main frame 1 connected with the traction mechanism. Fixed piles are pre-buried on the horse path, and the traction mechanism is installed on the fixed piles. In this embodiment, the traction mechanism is arranged on the The winch 15 on the horseway 16, the main frame is made up of outer column 102, column 103 and cross column 104 intersections, and outer column 102 is obliquely arranged, and column 103 is vertically arranged, and horizontal column 104 is arranged horizontally, and vertical column 103 of main frame 1 A hydraulic jack 7 is installed, and the upper end of the hydraulic jack is installed on the column 103 of the main frame through the hydraulic jack seat 8. The column 103 of the main frame is also vertically provided with an upper guide groove 9 and a lower guide groove 10, and the hydraulic cylinder of th...

Embodiment 2

[0027] Embodiment 2: The overall walking type mobile cofferdam of this embodiment is described with a point center different from that in Embodiment 1.

[0028] In this embodiment, a water pump is provided in the water tank 5, and the outlet pipe of the water pump communicates with the water pump valve. After the completion of the work, the water in the water tank is pumped out by the water pump, and the cofferdam is pulled upwards along the bank slope to the horseway at the same time, saving Time efficient.

[0029] Stability analysis and determination of specific dimensions are as follows:

[0030]The calculation of the size of the cofferdam is mainly based on the buoyancy force of the water in the channel, the self-weight of the cofferdam and the water pressure under the condition of the foundation frictional resistance balance, and the force of the steel bar fixing the wave wall is used as the reserved resistance to ensure safety.

[0031] In this study, the stability of ...

Embodiment 3

[0041] Embodiment 3: On the basis of Embodiment 1 or Embodiment 2, a water pump is used to adjust the water storage inside and outside the water tank. Its structure see Figure 5 Shown, a water pump is respectively installed in the left and right water tanks.

[0042] A three-way valve one and a three-way valve two are respectively installed on the suction pipe and the drain pipe of the water pump. In order to facilitate the operation of the two three-way valves, the two three-way valves are respectively installed on the side walls of the working area.

[0043] From Figure 5 It can be seen from the figure that the two branch pipes of the three-way valve one are connected to the working area and the overall water tank respectively. The two branch pipes of the three-way valve two are communicated with the working area and the integral water tank respectively. Through the control of the three-way valve, one of the branch pipes can be connected to the main pipe, while the othe...

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Abstract

The invention relates to the technical field of water conservancy project side slope repairing equipment, in particular to an integral walking type movable cofferdam, comprising a main frame, water-stop sheets and a water-stop structure. The water-stop sheets on the main frame are connected mutually to form a water-stop operating cavity running through from top to bottom and a skirt hem water-stoprubber pad is mounted at the lower edge of each water-stop sheet; water filling boxes are respectively mounted at the left side and the right side of the water-stop operating cavity; water pumps arerespectively installed in the left and right water filling boxes, a pumping pipe and a draining pipe of each water pump are respectively provided with a first tee valve and a second tee valve; two branches of the first tee valve as well as two branches of the second tee valve are respectively communicated with a working area and an integral water box; hydraulic jacks are mounted on the main framevertically, and universal wheels are mounted at the lower ends of piston rods of the hydraulic cylinders; fixing piles are fixed to the river side slope, and the main frame is provided with towing points; thus, the cofferdam is convenient to assemble and move, without causing any pollution or jam to trenches.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering canal slope maintenance equipment, in particular to an integral walking type mobile cofferdam. Background technique [0002] In recent years, with the gradual expansion of the city scale, urban landscape water and domestic water are also increasing. In order to meet the water demand of the city, many artificial channels have been built within the city and between cities, ranging from the South-to-North Water Diversion to various landscape channels. With the passage of time, it is inevitable that the side slope of the repaired channel will be partially scoured, cracked and other damage phenomena. These hidden dangers not only affect the water passing capacity of the channel, but the long-term water flow will also make the cracks and gaps continue to expand, and even threaten the safety of the entire channel and the living safety of residents on both sides of the channel, caus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D19/04
CPCE02D19/04E02D2250/0092
Inventor 丁泽霖张鹏陈晓萍魏水平李金毫班汉林梁天祎唐国中张先起张宏洋
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER