Deepwater grouting treatment water surface platform for seepage of concrete faced rockfill dam in operation state

Abstract

The invention provides a concrete faced rockfill dam leakage deepwater grouting treatment water surface platform in a running state, which comprises two groups of buoyancy tanks, Bailey bridges, cross beams, a bottom plate, anchor machines and grouting equipment, the two groups of buoyancy tanks are distributed left and right along a grouting center line, one group of Bailey bridges is arranged on the same group of buoyancy tanks, and the cross beams are arranged between the left and right adjacent groups of Bailey bridges; a bottom plate is arranged on the cross beam, an opening is formed near the center line of the bottom plate, an anchor gear is mounted at the opening, and grouting equipment is arranged near the anchor gear. The water surface working floating platform for deepwater grouting is convenient to install and easy to disassemble, the water platform is arranged in the curtain grouting direction, the working time of divers is shortened to the maximum extent, and the construction difficulty of drilling and grouting is reduced to the maximum extent; a wind-resistant steel cable and a limiting frame are arranged, so that the water surface platform is better fixed at an operation position; and through the arrangement of the tension sensor and the wind speed sensor, the safety state of the working floating platform is monitored and evaluated, and the working safety is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of water conservancy and hydropower engineering, and in particular to a water surface platform for deep water grouting treatment of seepage of a panel rockfill dam in an operating state. Background Art

[0002] my country's concrete face rockfill dams are almost all over the country, accounting for more than half of the total number of concrete face rockfill dams in the world. According to observation data of built concrete face rockfill dams, most of this type of dam has shown good operating conditions, but some dams have some problems and even tragic accidents. According to incomplete statistics, among the 68 concrete face rockfill dams with a height of more than 100m built in my country, 11 concrete face rockfill dams such as Jiayan, Puxiqiao, Xibeikou, Bushi and Baiyun have problems such as dam foundation leakage and face plate damage, resulting in leakage diseases, and the leakage disease rate is relatively high. Grouting is the main means to deal with leakage problems, and grouting is generally carried out on dry land.

[0003] The economic losses and social impacts caused by emptying a reservoir are obvious. Emptying a reservoir will have a great impact on the function of the reservoir. Some reservoirs are the main source of water for urban water supply, so it is difficult to empty the reservoir. In order to avoid the economic losses caused by emptying a reservoir, it is of great significance to develop grouting treatment equipment suitable for high head operation, which can solve the problems of short effective working time of divers and difficult layout of surface grouting equipment. Summary of the invention

[0004] The main purpose of the present invention is to provide a water surface platform for deep water grouting treatment of panel rockfill dam leakage in operation, to provide necessary equipment for the treatment of high head deep water grouting leakage of panel rockfill dam, thereby avoiding the loss of manpower and material resources caused by emptying the reservoir during the treatment process.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] A surface platform for deep-water grouting treatment of leakage in a panel rockfill dam in operation comprises a pontoon, a Bailey bridge, a crossbeam, a bottom plate, an anchor windlass and a grouting device. The pontoons are divided into two groups, and the two groups of pontoons are distributed left and right along a grouting center line. A group of Bailey bridges is arranged on the pontoons of the same group, and a crossbeam is arranged between two adjacent groups of Bailey bridges on the left and right. A bottom plate is arranged on the crossbeam, and an opening is arranged near the center line of the bottom plate, and an anchor windlass is installed on the opening, and a grouting device is arranged near the anchor windlass.

[0007] While adopting the above technical solutions, the present invention may also adopt or combine the following technical solutions:

[0008] As a preferred technical solution of the present invention: a wind-resistant steel cable is provided between the bottom plate and the shore fixture.

[0009] As a preferred technical solution of the present invention: a tension sensor is provided on the wind-resistant steel cable, and the tension sensor is connected to a safety warning light.

[0010] As a preferred technical solution of the present invention: a plurality of limit frames are provided at the bottom of at least one shore side of the bottom plate, and the bottom of the limit frames is fixed to the bottom foundation of the reservoir bank.

[0011] As a preferred technical solution of the present invention: a wind speed sensor is provided on the anchor machine, and the wind speed sensor is connected to a safety warning light.

[0012] The present invention provides a surface platform for deep-water grouting treatment of leakage of a panel rockfill dam in operation, which has the following beneficial effects: the present invention provides a surface working floating platform for deep-water grouting that is easy to install and disassemble through a combination of a pontoon, a Bailey bridge, a crossbeam, a bottom plate, an anchor machine, and a grouting device; the surface platform is arranged along the direction of curtain grouting, thereby reducing the working time of divers and the construction difficulty of drilling and grouting to the greatest extent; the surface platform is better fixed at the working position through the arrangement of wind-resistant steel cables and limit frames; the safety status of the working floating platform is monitored and evaluated through the arrangement of tension sensors and wind speed sensors, thereby ensuring the safety of work. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A top view of the water surface platform for deep water grouting treatment of seepage in a face rockfill dam provided by the present invention in operation;

[0014] Figure 2 A partial cross-sectional view:

[0015] In the figure: 1- pontoon; 2- Bailey bridge; 3- crossbeam; 4- bottom plate; 5- wind-resistant steel cable; 6- tension sensor; 7- safety warning light; 8- anchor machine; 9- grouting equipment; 10- limit frame; 11- wind speed sensor. DETAILED DESCRIPTION

[0016] The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1-2 As shown, a surface platform for deep-water grouting treatment of leakage of a panel rockfill dam in an operating state comprises a pontoon 1, a bailey bridge 2, a crossbeam 3, a bottom plate 4, an anchor machine 8, and a grouting device 9. The pontoons 1 are divided into two groups, and the two groups of pontoons 1 are distributed left and right along the grouting center line. There is a gap between each group of pontoons 1 for subsequent anchor machine installation and deep-water grouting. A group of bailey bridges 2 is arranged on the pontoons 1 of the same group, and a crossbeam 3 is arranged between the two adjacent groups of bailey bridges 2 on the left and right. The crossbeam 3 is provided with a bottom plate 4, and an opening is provided near the center line of the bottom plate 4, and the opening is installed with an anchor machine 8. A grouting device 9 is provided near the anchor machine 8 for deep-water grouting work.

[0018] A wind-resistant steel cable 5 is provided between the bottom plate 4 and the shore fixture.

[0019] A tension sensor 6 is provided on the wind-resistant steel cable 5. The tension sensor 6 is connected to a safety warning light 7. The safety warning light 7 starts to flash after the tension sensor 6 reaches a set value.

[0020] A plurality of limit frames 10 are provided at the bottom of at least one shore side of the bottom plate 4, and the bottom of the limit frames 10 is fixed to the bottom foundation of the reservoir bank to limit the horizontal displacement of the platform.

[0021] The anchor windlass 8 is provided with a wind speed sensor 11, which is connected to the safety warning light 7. The safety warning light 7 starts to flash after the wind speed sensor 11 reaches a set value.

[0022] The above-mentioned specific implementation methods are used to explain the present invention and are only preferred embodiments of the present invention, rather than limiting the present invention. Any modifications, equivalent substitutions, improvements, etc. made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A water surface platform for deep water grouting treatment of seepage of a face rockfill dam in operation, characterized by: The invention comprises a pontoon (1), a Bailey bridge (2), a crossbeam (3), a bottom plate (4), an anchor windlass (8), and a grouting device (9). The pontoon (1) is divided into two groups, and the two groups of pontoons (1) are distributed on the left and right sides along the grouting center line. A group of Bailey bridges (2) is arranged on the pontoons (1) of the same group, and a crossbeam (3) is arranged between the two adjacent groups of Bailey bridges (2) on the left and right sides. The bottom plate (4) is arranged on the crossbeam (3), and an opening is arranged near the center line of the bottom plate (4), and an anchor windlass (8) is installed on the opening. The grouting device (9) is arranged near the anchor windlass (8).

2. According to the water surface platform for deep water grouting treatment of face rockfill dam leakage in operation state of claim 1, it is characterized by: A wind-resistant steel cable (5) is provided between the bottom plate (4) and the shore fixture.

3. The deep water grouting water surface platform for treating the leakage of a face rockfill dam in operation state according to claim 2 is characterized by: The wind-resistant steel cable (5) is provided with a tension sensor (6), and the tension sensor (6) is connected to a safety warning light (7).

4. According to the water surface platform for deep water grouting treatment of face rockfill dam leakage in operation state of claim 1, it is characterized by: A plurality of limit frames (10) are provided at the bottom of at least one shore-side of the bottom plate (4), and the bottom of the limit frames (10) is fixed to the bottom foundation of the reservoir bank.

5. According to the water surface platform for deep water grouting treatment of face rockfill dam leakage in operation state of claim 1, it is characterized by: The anchor windlass (8) is provided with a wind speed sensor (11), and the wind speed sensor (11) is connected to the safety warning light (7).

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