WO2021003690A1

WO2021003690A1 - Tailings pond dam burst disaster simulation system and method

Info

Publication number: WO2021003690A1
Application number: PCT/CN2019/095378
Authority: WO
Inventors: 郭捷; 马凤山; 赵海军; 李光; 冯雪磊; 孙琪皓; 段学良; 刘帅奇
Original assignee: 中国科学院地质与地球物理研究所
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2021-01-14
Also published as: GB2591537A; GB202013705D0

Abstract

A tailings pond dam burst disaster simulation system and method, comprising a host system, a hydraulic system, a precipitation apparatus, a servo control system, and a sensor and electrical system. The host system consists of a rack and a dumping apparatus; a bottom plate (10) and retaining walls (3) are welded together; the front and back sides of the retaining walls (3) are of a hollow structure; a burst outlet (1) is mounted on a left sidewall of the left retaining wall (3); high-strength transparent glass (5) is mounted at hollow positions on the front and back sides of the retaining walls (3). By means of the configuration and use method of the present apparatus, dam burst experimental study for a large tailings pond can be completed under manual control and intervention, comprising: tailings pond dam burst damage space-time evolution rule and disaster-causing mechanism study, tailings pond dam burst prediction and early warning technology study, tailings pond dam burst impact damage rule study, large tailings pond design, accident disaster engineering simulation, etc. The present invention provides technical support for tailings pond dam burst disaster prevention and control, and has strong economical practicability.

Description

Dam-break disaster simulation system and method of tailing pond

Technical field

The invention relates to the technical field of test equipment, in particular to a tailing pond dam break disaster simulation system and method.

Background technique

The static effect test of tailings pond accumulation and slippage is a very important test in the engineering field, especially in the tailings treatment project, and the reliability of the test results is directly related to the quality and safety of the project. The existing static effect test of tailings pond accumulation and slippage can be simulated by indoor verification equipment, so that the tailing pond dam break can be tested indoors. There are many kinds of existing test equipment, but they all have the problem of inaccurate test results.

Summary of the invention

The purpose of the present invention is to provide a tailings pond dam-break disaster simulation system and method to solve the problem that the test results of the static effect test of the tailings pond accumulation and slip proposed in the background art are not accurate enough.

In order to achieve the above objectives, the present invention provides the following technical solutions: a tailings reservoir dam break disaster simulation system and method, including a host system, a hydraulic system, a precipitation device, a servo control system, sensors and an electrical system.

Preferably, the host system is composed of a frame and a tilting device. The frame is composed of a bottom plate, a retaining wall, high-strength transparent glass, and a broken opening. The front and rear sides of the retaining wall are in a hollow structure, the break opening is installed on the left side wall of the left retaining wall, and the high-strength transparent glass is installed in the hollow positions of the front and rear retaining walls.

Preferably, the tilting device is composed of a rotating shaft, a connecting shaft and a lifting oil cylinder, the rotating shaft is a rotating support foot, and the connecting shaft is composed of a fixed support foot, a triangular lifting frame and an upper lifting shaft, so The rotating support foot is mounted on the left side of the front and rear side walls of the bottom plate, the fixed support foot is mounted on the bottom end of the bottom plate, one end of the triangular lifting frame is connected with the fixed supporting foot, and the other end of the triangular lifting frame It is connected with the upper lifting shaft, the top end of the lifting oil cylinder is connected with the upper lifting shaft, and the bottom end of the lifting oil cylinder is connected with a fixed supporting foot.

Preferably, the precipitation device is composed of an underground water seepage device and a rainfall device, the underground water seepage device includes a water tank and a water pump, the water tank is connected to the water pump through a pipeline, and the water pump is connected to the bottom of the inner cavity of the retaining wall through the pipeline , The rainfall device includes a water supply tank, a filter tank and a clarification tank, and the water supply tank, the filter tank and the clarification tank are connected by pipelines.

Preferably, the servo control system is composed of a computer, a servo controller, a servo valve, an angle sensor and control software. The computer is electrically connected with the servo controller and the servo valve, and the angle sensor is installed at the connection between the base plate and the rotating support foot.

Preferably, the control method of the tailings pond dam break disaster simulation system is as follows:

Step 1: Place the test piece in the inner cavity of the retaining wall;

Step 2: Control the tilting device in the host system through the servo control system;

Step 3: The tilting device drives the frame to turn and tilt through the hydraulic system, so that the test piece is discharged from the collapse outlet;

Step 4: The precipitation device is turned on or off through the servo control system to simulate groundwater seepage or rainfall test.

Compared with the prior art, the beneficial effect of the present invention is that the above technical scheme proposes a tailings pond dam-break disaster simulation system, which can complete the large-scale tailing pond dam-break test research under manual control and intervention, including: Research on the temporal and spatial evolution law and disaster-causing mechanism of dam-breaking of mine ponds; research on the prediction and early warning technology of dam-breaking of tailings ponds; study on the law of dam-breaking impact and damage of tailings ponds; Provide technical support for dam-break disaster prevention.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the present invention;

2 is a schematic diagram of the main structure of the host system of the present invention;

Fig. 3 is a schematic diagram of the baseboard structure of the host system of the present invention;

Figure 4 is a schematic diagram of the host system rollover of the present invention;

Figure 5 is a schematic structural diagram of the lifting cylinder of the present invention;

6 is a schematic diagram of excavation at an inclined angle of the supporting device of the high ground stress excavation simulation system according to the embodiment of the present invention;

Figure 7 is a longitudinal cross-sectional view of the excavation part in Figure 6;

In the picture: 1 outlet, 2 specimens, 3 retaining walls, 4 rotating support feet, 5 high-strength transparent glass, 6 fixed support feet, 7 triangular lifting frame, 8 lifting cylinders, 9 upper lifting shafts, 10 bottom plates .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

The present invention provides the following technical solutions: a tailings pond dam break disaster simulation system and method, please refer to Figure 1, including a host system, a hydraulic system, a precipitation device, a servo control system, sensors and an electrical system.

Please refer to Figure 2-4. The host system is composed of a rack and a tilting device. The rack is composed of a bottom plate 10, a retaining wall 3, a high-strength transparent glass 5 and an outlet 1. The rack size model box size is 6300*10300* 2500mm, the bottom plate 10 is welded in the shape of a cross, the bottom plate 10 and the retaining wall 3 are welded, the front and rear sides of the retaining wall 3 are hollow structures, and the outlet 1 is installed on the left side of the left retaining wall 3, high-strength transparent glass 5 Installed in the hollow position of the retaining wall 3 on the front and back sides to facilitate the observation of the internal deformation, damage and wetting line state during the test. In order to ensure the strength and rigidity, it is welded into a tic-tac-toe structure to ensure the stability of the retaining wall 3 on the left and right sides. , Steel beams are arranged on the upper and lower parts of the front-end break outlet 1, and the maximum weight of the specimen 2 is 300 tons.

Please refer to Figure 2 and Figure 5. The tilting device is composed of a rotating shaft, a connecting shaft and a lifting cylinder 8. The rotating shaft is a rotating support foot 4, and the connecting shaft is composed of a fixed support foot 6, a triangular lifting frame 7 and an upper lifting shaft. 9, the rotating support foot 4 is installed on the left side of the front and rear side walls of the bottom plate 10, the fixed supporting foot 6 is installed at the bottom end of the bottom plate 10, one end of the triangular lifting frame 7 is connected with the fixed supporting foot 6, and the triangular lifting frame 7 The other end of the lifting cylinder 8 is connected with the upper lifting shaft 9, the top end of the lifting cylinder 8 is connected with the upper lifting shaft 9, and the bottom end of the lifting cylinder 8 is connected with the fixed support foot 6. The maximum stroke of the lifting cylinder 8 is 3000mm, and the maximum lift With a lift of 300 tons, the base and retaining wall 3 can be tilted up to 20 degrees, and the frame can be stopped and maintained at any angle in cooperation with the hydraulic system and the servo control system.

Refer to Figure 7-8. The precipitation device is composed of an underground water seepage device and a rainfall device. The underground water seepage device includes a water tank and a water pump. The water tank is connected to the water pump through a pipeline, and the water pump is connected to the bottom of the inner cavity of the retaining wall 3 through a pipeline. Including the water supply tank, filter tank and clarification tank, the water supply tank, filter tank and clarification tank are connected by pipelines.

Please refer to Figure 1 again. The servo control system consists of a computer, a servo controller, a servo valve, an angle sensor, and control software. The computer is electrically connected to the servo controller and the servo valve. The angle sensor is installed on the bottom plate 10 and the rotating support foot 4. At the connection point, the computer sends the control command to the controller, and controls the comparison and calculation of the data sent back by the sensor with the command data sent by the computer. According to the calculation result, the servo motor is issued with a control command, and the local motor drives the screw to move the sensor. When the value changes, this value is sent to the control again to form a servo closed-loop control system.

Please refer to Figure 1 again. The servo hydraulic station in the hydraulic system provides power for the loading of the cylinder. The tank body is treated with carbon steel pickling, external surface painting and other anti-corrosion treatments, servo valves, motor pump units, oil filters, pressure gauges, and overflow valves. , Accumulator, radiator and other components are installed on the box. The servo oil source adopts an integrated design, and the oil source is integrated with the electrical control cabinet. The servo hydraulic station provides power to the servo actuator, and the oil source cooling device cools the hydraulic oil in the hydraulic station that continuously provides power to keep it at normal working temperature.

Please refer to Figure 1 again, the sensor and electrical system, the tilt angle measurement is measured by a rotary angle sensor, the rotating shaft is connected with the rotating shaft of the frame, and the measuring angle range can be set within the range of 0-360° according to user requirements. The output voltage signal is 0～5V, and the output voltage signal has transient voltage protection. The power supply voltage is 8V～28V, with reverse protection, no wear, and longer life. It is an excellent product to replace contact angle sensors, such as conductive plastics. The sensor and electrical system contain motor overload protection, temperature display and alarm devices. When the oil temperature of the hydraulic station exceeds the specified value, it will automatically alarm. The hydraulic station is placed in the electrical cabinet to reduce the floor space. For places with limited sites, it saves space.

The control method of this tailing pond dam break disaster simulation system is as follows:

Step 1: Place the 200t specimen 2 in the inner cavity of the retaining wall 3;

Step 3: The tilting device drives the frame to tilt to 45 ^° through the hydraulic system, so that the test piece 2 is discharged from the collapse outlet 1;

Step 4: The precipitation device is turned on through the servo control system to simulate the groundwater seepage test.

Although the present invention has been described above with reference to some embodiments, without departing from the scope of the present invention, various modifications can be made to it and the components therein can be replaced with equivalents. In particular, as long as there is no structural conflict, the various features in the various embodiments disclosed in the present invention can be combined with each other in any way. The description of these combinations is not exhaustive in this specification, but only Omit the consideration of space and resource saving. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, and includes all technical solutions falling within the scope of the claims.

Claims

A simulation system for the dam break disaster of a tailings pond is characterized by comprising a host system, a hydraulic system, a precipitation device, a servo control system, a sensor and an electrical system.
The tailings pond dam-break disaster simulation system according to claim 1, characterized in that: the host system is composed of a frame and a tilting device, and the frame is composed of a bottom plate (10) and a retaining wall (3) , High-strength transparent glass (5) and a broken port (1), the bottom plate (10) is welded in a tic-shape, and the bottom plate (10) is welded to the retaining wall (3). The retaining wall (3) The front and rear sides of the) are hollow structures, the break outlet (1) is installed on the left side wall of the left retaining wall (3), and the high-strength transparent glass (5) is installed on the front and rear retaining walls (3). Hollow position.
The tailings pond dam-break disaster simulation system according to claim 2, characterized in that: the tipping device is composed of a rotating shaft, a connecting shaft and a lifting cylinder (8), and the rotating shaft is a rotating support foot (4) The connecting shaft is composed of a fixed support foot (6), a triangular lifting frame (7) and an upper lifting shaft (9), and the rotating support foot (4) is installed on the front and rear sides of the bottom plate (10) On the left side of the wall, the fixed supporting foot (6) is installed at the bottom end of the bottom plate (10), one end of the triangular lifting frame (7) is connected with the fixed supporting foot (6), and the triangular lifting frame ( The other end of 7) is connected with the upper lifting shaft (9), the top end of the lifting cylinder (8) is connected with the upper lifting shaft (9), and the bottom end of the lifting cylinder (8) is connected with the fixed supporting foot (6) Connection.
The tailings pond dam-break disaster simulation system according to claim 1, wherein the precipitation device is composed of an underground water seepage device and a rainfall device, the underground water seepage device includes a water tank and a water pump, and the water tank passes through a pipe The water pump is connected to the bottom of the inner cavity of the retaining wall (3) through pipelines. The rainfall device includes a water supply pool, a filter tank and a clarification tank. The water supply pool, the filter tank and the clarification tank pass through a pipe Road connection.
The tailings pond dam-break disaster simulation system according to claim 1, wherein the servo control system is composed of a computer, a servo controller, a servo valve, an angle sensor and control software, and the computer and the servo controller are combined with The servo valve is electrically connected, and the angle sensor is installed at the connection between the bottom plate (10) and the rotating support foot (4).
A control method of the tailings pond dam-break disaster simulation system according to any one of claims 1 to 5, wherein the control method of the tailing pond dam-break disaster simulation system and method is as follows:

Step 1: Place the test piece (2) in the inner cavity of the retaining wall (3);

Step 2: Control the tilting device in the host system through the servo control system;

Step 3: The tilting device drives the frame to turn and tilt through the hydraulic system, so that the test piece (2) is discharged from the collapse outlet (1);

Step 4: The precipitation device is turned on or off through the servo control system to simulate groundwater seepage or rainfall test.