Risk double-control prevention and control system

Abstract

The invention discloses a risk double-control prevention and control system, which belongs to the technical field of geological disaster prevention and control, and comprises a point-surface double-control system and a point-area joint control system, and the point-surface double-control system is a double-control system of a hidden danger point and a risk prevention area; point-area joint control is a joint control system of hidden danger points and area risk prevention areas; the method comprises the following two conditions: in a non-typhoon rainstorm period, a double-control system of a hidden danger point and a risk prevention area is adopted; in a typhoon rainstorm period, on the basis of adopting a double-control system of a hidden danger point and a risk prevention area, a joint control system of the hidden danger point and a regional risk prevention area is adopted. According to the risk double-control prevention and control system, a point-surface double-control prevention and control system and a point-area joint-control prevention and control system are combined, the system is also effective for mass-occurring geological disasters occurring in a typhoon rainstorm central area, and risk management and control are conducted on a plurality of new geological disaster points.

Description

Technical Field

[0001] The present invention relates to the technical field of geological disaster prevention and control, and in particular to a risk dual-control prevention and control system. Background Art

[0002] At present, the national geological disaster prevention and control is promoting the "prevention point + risk prevention area" dual control system. This system jointly prevents and controls geological disaster prevention points and risk prevention areas, that is, a risk control method that combines points and surfaces, referred to as "point-surface dual control". However, years of practice have shown that it is not enough to use the conventional "point-surface dual control" control area in the typhoon and rainstorm center, and the lesson is painful. The reason is that in the typhoon and rainstorm center area, due to the extremely high rainfall intensity, the relative probability of landslides, collapses, and debris flows is large, the scale is large, the harm is large, and the concealment is strong, which makes it easy for mass geological disasters to occur, especially valley-type debris flows and slope-type debris flows. There are many new geological disasters. Using "point-surface dual control" only at known hidden danger points cannot effectively control the geological disaster risks in the rainstorm center or basin, and will miss the risk control of many new geological disaster points. Summary of the invention

[0003] The purpose of the present invention is to provide a risk dual control prevention and control system to solve the problems existing in the above-mentioned background technology.

[0004] To achieve the above purpose, the present invention provides a risk dual control prevention and control system, including a point-surface dual control system and a point-area joint control system. The point-surface dual control system is a dual control system of hidden danger points + risk prevention areas; the point-area joint control is a joint control system of hidden danger points + regional risk prevention areas; it is divided into the following two situations:

[0005] During non-typhoon and rainstorm periods, a dual control system of hidden danger points + risk prevention areas is adopted;

[0006] During the typhoon and rainstorm period, on the basis of the dual control system of hidden danger points + risk prevention areas, a joint control system of hidden danger points + regional risk prevention areas is adopted.

[0007] Preferably, a hidden danger point refers to a geological body with the conditions for the formation of geological disasters. Through investigation, monitoring, analysis and evaluation, the location or section where a geological disaster may occur is inferred, that is, the spatial position of the disaster-causing body is determined; the risk prevention area refers to a specific area for managing risk areas of medium and above levels of geological disaster risk. Its management objects include the geological body that causes the disaster, also called the disaster-causing body; it also includes the disaster-bearing body that suffers the disaster.

[0008] Preferably, the disaster-causing body range and the disaster-bearing body range are uniformly divided into geological disaster risk prevention areas.

[0009] Preferably, the joint control system of hidden danger points + regional risk prevention zones refers to risk management of disaster-causing objects and disaster-bearing objects in the typhoon and rainstorm center area or river basin during the typhoon and rainstorm period.

[0010] Preferably, the management and control of hidden danger points and risk prevention areas are different, which is specifically reflected in the management and control scope, performance characteristics, evaluation level, management and control classification, management and control measures and management and control objectives. How to implement the management and control of hidden danger points and risk prevention areas for geological disasters directly affects the required human and material resources as well as the management and control effects.

[0011] Preferably, the control scope of hidden danger points and risk prevention areas is points or sections, specific areas respectively; the performance characteristics of hidden danger points and risk prevention areas are signs of deformation or disaster risks, no signs but risks exist respectively; the evaluation levels of hidden danger points and risk prevention areas are stability evaluation and risk evaluation respectively; the control classification of hidden danger points includes small, medium, large and extra large, and the control classification of risk prevention areas includes general, secondary key and key; the control measures for hidden danger points and risk prevention areas are relocation and avoidance or engineering management or professional monitoring, diversified means respectively; the control objectives of hidden danger points and risk prevention areas are must be written off and reduced risks respectively.

[0012] Preferably, the stability evaluation includes understable and unstable; and the risk evaluation includes low, medium, high and very high.

[0013] Therefore, the present invention adopts a risk dual control prevention and control system of the above structure, combining the point-surface dual control with the point-area joint control prevention and control system, which is also effective for the mass geological disasters occurring in the central area of ​​typhoons and rainstorms, and carries out risk control of many new geological disaster points; it can minimize the disaster losses and build geological safety guarantees.

[0014] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a point-surface dual control system of a risk dual control prevention and control system of the present invention;

[0016] Figure 2 Schematic diagram of a point-area joint control system according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of a geological disaster risk prevention area during a typhoon and rainstorm period according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] Example

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] A risk dual control prevention and control system, including a "point-surface dual control" system and a "point-region joint control" system. The "point-surface dual control" system is a dual control system of "hidden danger point + risk prevention area"; the "point-region joint control" is a joint control system of "hidden danger point + regional risk prevention area";

[0022] like Figure 1 As shown in the figure, geological hazard risk points refer to geological bodies with the conditions for the formation of geological disasters. Through investigation, monitoring, analysis and evaluation, the locations or sections where geological disasters may occur are inferred, that is, the spatial location of the disaster-causing body is determined. Once the geological hazard risk points are deformed and damaged under the influence of factors such as rainfall, they will threaten personal safety and cause damage to buildings and the ecological environment in the vicinity of the hazard points, especially the front edge and the passing area. In order to minimize the losses caused by disasters and build geological safety guarantees, risk prevention areas are set up in advance and proactively in the areas within the disaster-stricken areas. Risk prevention areas refer to specific areas for the management of medium and above risk areas of geological hazard risks. The management objects include the geological bodies that cause disasters, that is, the disaster-causing bodies; and also include the people, buildings, roads, etc. that suffer from disasters, that is, the disaster-bearing bodies. In short, the scope of the disaster-causing body and the scope of the disaster-bearing body are uniformly defined as the geological hazard risk prevention area.

[0023] There are significant differences between geological hazard potential points and geological hazard risk prevention areas in terms of control scope, control methods and control objectives, as shown in Table 1. How to implement the control of geological hazard potential points and risk prevention areas directly affects the required human and material resources and control effects.

[0024] Table 1 Differences between hidden danger points and risk prevention areas

[0025]

[0026] After years of geological disaster prevention and control practices, a prevention and control system with local characteristics has been formed in response to the characteristics of sudden, mass and "small disasters with big harm" geological disasters in a certain area. In the non-typhoon and rainstorm period, the "point-surface dual control" prevention and control system is effective; but in the center of the rainstorm during the typhoon and rainstorm period, a unique "hazard point + regional risk prevention area" joint control prevention and control system has been formed, such as Figure 2 shown.

[0027] The joint control and prevention system of "hazard point + regional risk prevention area", referred to as "point-area joint control", refers to the risk management of disaster-causing bodies and carriers in the typhoon and rainstorm center area or the basin range during the typhoon and rainstorm period. Years of practice have shown that it is not enough to adopt the conventional "point-surface dual control" control area in the typhoon and rainstorm center. The reason is that in the typhoon and rainstorm center area, due to the extremely high rainfall intensity, the relative probability of landslides, collapses, and mudslides is large, the scale is large, the harm is great, and the concealment is strong. Mass geological disasters are prone to occur, especially valley-type mudslides and slope-type mudslides. There are many new geological disasters. The use of "point-surface dual control" only at known hidden danger points cannot effectively control the geological disaster risks in the rainstorm center or basin, and will miss the risk control of many new geological disaster points.

[0028] The prevention and control system formed in a certain region, which adopts "point-area joint control" outside the rainstorm center during the non-typhoon and rainstorm period and the typhoon and rainstorm period, and "point-area joint control" in the rainstorm center during the typhoon and rainstorm period, has achieved good application results in geological disaster risk control. For example, in September 2016, Typhoon Meranti triggered mass mudslides in a certain county. It is far from enough to control only at known hidden danger points and traditional risk area demarcation ranges. Risk control must be carried out at the regional and river basin levels. Among them, a certain city has demarcated a large-scale risk prevention area in a certain county based on the characteristics of the disaster in the area, such as Figure 3 As shown, a variety of measures have been taken to strengthen regional risk control. Control was further strengthened when typhoons and rainstorms came. When large-scale mudslides occurred, no casualties were caused.

[0029] Therefore, the present invention adopts the above-mentioned dual risk control prevention and control system, combining the point-surface dual control with the point-area joint control prevention and control system, which is also effective for the mass geological disasters occurring in the central area of ​​typhoons and rainstorms, and carries out risk control of many new geological disaster points.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A risk dual control prevention and control system, characterized in that: It includes point-surface dual control system and point-region joint control system. The point-surface dual control system is a dual control system of hidden danger points + risk prevention areas; the point-region joint control is a joint control system of hidden danger points + regional risk prevention areas. There are two cases: During non-typhoon and rainstorm periods, a dual control system of hidden danger points + risk prevention areas is adopted; During the typhoon and rainstorm period, on the basis of the dual control system of hidden danger points + risk prevention areas, a joint control system of hidden danger points + regional risk prevention areas is adopted.

2. A risk dual control prevention and control system according to claim 1, characterized in that: A hidden danger point refers to a geological body that has the conditions to form a geological disaster; a risk prevention area refers to a specific area where medium and above risk areas of geological disaster risk are managed. Its management objects include the geological body that causes the disaster, also known as the disaster-causing body; and also include the disaster-bearing body that suffers the disaster.

3. A risk dual control prevention and control system according to claim 2, characterized in that: The disaster-causing body range and the disaster-bearing body range are uniformly divided into geological disaster risk prevention areas.

4. A risk dual control prevention and control system according to claim 3, characterized in that: The joint control system of hidden danger points + regional risk prevention zones refers to the risk management of disaster-causing and disaster-bearing objects in the typhoon and rainstorm center area or river basin during the typhoon and rainstorm period.

5. A risk dual control prevention and control system according to claim 1, characterized in that: The management and control of hidden danger points and risk prevention areas are different, which is specifically reflected in the management and control scope, performance characteristics, evaluation level, management and control classification, management and control measures and management and control objectives.

6. A risk dual control prevention and control system according to claim 5, characterized in that: The control scope of hidden danger points and risk prevention areas are points or sections, and specific areas respectively; the manifestation characteristics of hidden danger points and risk prevention areas are signs of deformation or disaster risk, and no signs but risk exists respectively; The evaluation levels of hidden danger points and risk prevention areas are stability evaluation and risk assessment respectively; The management and control classifications of hidden danger points include small, medium, large and extra-large, and the management and control classifications of risk prevention areas include general, secondary and key; the management and control measures for hidden danger points and risk prevention areas are relocation and avoidance, engineering management, professional monitoring and diversified means respectively; The management and control objectives of potential danger points and risk prevention areas are to ensure write-offs and reduce risks respectively.

7. A risk dual control prevention and control system according to claim 6, characterized in that: Stability assessment includes understable and unstable; risk assessment includes low, medium, high and extremely high.

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