Debris flow prone section protection structure

Abstract

The application relates to the field of debris flow, in particular to a debris flow-prone-section protection structure, which comprises two stand columns, a protection net is arranged between the two stand columns, the protection net is composed of a plurality of elastic ropes, each two adjacent elastic ropes are provided with a circular ring node, the stand columns are provided with connecting parts for connecting the elastic ropes, and the connecting parts are further provided with pins for fixing the elastic ropes, the protection structure further comprises a reinforcing protection mechanism, the reinforcing protection mechanism comprises a plurality of buffer pieces, the number of the buffer pieces is equal to the number of rows of the circular ring nodes on the protection net, the reinforcing protection mechanism further comprises a plurality of supporting pieces, and the number of the supporting pieces is equal to the number of the buffer pieces; through the double protection of the protection net and the protection curtain and the action of the buffer pieces and the supporting pieces, the debris flow is blocked, the protection effect is improved, and the stability of the protection net and the protection curtain in resisting the debris flow is improved.

Description

Technical Field

[0001] This invention relates to the field of debris flow, specifically to a protective structure for debris flow-prone sections. Background Technology

[0002] Debris flows are a natural disaster, but currently, the most common method to prevent them is planting trees to prevent soil erosion. However, in some areas, trees have poor growth conditions and are often washed away by debris flows before they can fully mature, threatening the safety of residents living below the slope. Debris flow disaster prevention and control is mainly divided into biological and engineering measures. Biological measures include afforestation and forest restoration projects, while engineering measures refer to the deployment of relevant engineering structures to intercept or adjust debris flow formation, flow, and deposition areas. The main direct cause of the enormous losses from debris flow disasters is the damage to residential buildings. my country has a large population and limited land, and available land resources are particularly scarce in mountainous areas prone to debris flows. Field investigations have revealed that many villages are located along debris flow gullies, and buildings often cannot withstand the enormous impact of debris flows. Therefore, taking protective measures for buildings adjacent to debris flow gullies is extremely important.

[0003] The currently disclosed Chinese patent CN202110802890.8 discloses a debris flow protection device, comprising: a base; vertical columns fixedly connected to both sides of the top of the base; a protective net disposed inside the vertical columns; and horizontal cylinders sleeved on the top and bottom of the protective net. Inserted rods are inserted through both sides of the horizontal cylinders, with the outer sides of the inserted rods penetrating into the interior of the vertical columns. A double-acting cylinder is fixedly connected inside the vertical columns, and a connecting column is fixedly connected to the output end of the double-acting cylinder. A horizontal plate is fixedly connected to the outer side of the connecting column, and both sides of the horizontal plate are slidably connected to the inner wall of the vertical column. A positioning device is fixedly connected to the outer side of the horizontal plate. The rod has its outer side extending into the interior of the insertion rod. A diagonal rod is fixedly connected to the bottom of the outer side of the vertical column. The diagonal rod extends into the interior of the base on the side away from the vertical column. Rearward moving rods are installed through both sides of the front of the base. The back of the rear moving rod extends into the interior of the diagonal rod. Inner insertion columns are installed through both sides of the base. The inner side of the inner insertion column extends into the interior of the rear moving rod. A baffle is fixedly connected to the front of the protective net. Bearings are fixedly connected to the top and bottom of the front of the baffle, and on the side of the front of the baffle that is close to the vertical column. A rotating rod is movably connected inside the bearing. A cover is sleeved on the surface of the rotating rod.

[0004] According to the aforementioned patent, the patent achieves the effect of protecting against and blocking debris flows through the combined use of a base, vertical column, protective net, horizontal cylinder, insert rod, two-way cylinder, connecting column, baffle, positioning rod, diagonal rod, rearward moving rod, inner insert column, horizontal plate, bearing, rotating rod, and shielding cover. However, this patent cannot prevent some mud and sand from splashing while blocking debris flows, and its strength is not high, making it easily damaged. Therefore, there is currently a need for a protective structure that can enhance protection and has buffering performance. Summary of the Invention

[0005] Based on this, it is necessary to provide a protective structure for debris flow-prone sections to address the problems of existing technologies. This application achieves the blocking of debris flows through the dual protection of protective nets and curtains, as well as the functions of buffers and supports, thereby improving the protective effect and enhancing the stability of the protective nets and curtains in resisting debris flows.

[0006] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows:

[0007] This invention provides a protective structure for debris flow-prone sections, including two vertical posts fixed in the soil. A protective net is installed between the two posts, consisting of several elastic ropes with a circular joint between every two adjacent ropes. The outermost elastic ropes of the net are connected to corresponding posts. Each post has a connecting part for attaching the elastic ropes, and the connecting part is also equipped with pins for securing the ropes. The structure also includes a reinforcing mechanism for further preventing splashed debris and for further stabilizing the net. The reinforcing mechanism includes measures to protect the net from impacts. The system includes buffer components and protective curtains that act as a buffer against debris flow impacts, as well as support components that work in conjunction with the buffer components to support the protective curtains. There are several buffer components, the number of which is equal to the number of rows of circular nodes on the protective net. Each buffer component is placed between two pillars, and the buffer components are evenly distributed along the height of the pillars. Each row of circular nodes is connected to one buffer component. The protective curtain is placed between two pillars and is located away from the slope of the protective net. There are several support components, the number of which is equal to the number of buffer components. Each support component corresponds to one buffer component and is placed between two pillars.

[0008] Preferably, the buffer component has a bar and inserts. The bar is horizontally arranged between two columns, and its two ends are fixed to the corresponding columns. There are several inserts, the number of which is equal to the number of circular nodes in each row. One end of each insert is fixedly inserted into a circular node, and the other end of each insert extends toward the bar. The bar has a socket for inserting each insert. Each insert is fitted with a buffer spring, and the two ends of each buffer spring are fixedly connected to the surface of the corresponding circular node and the surface of the bar.

[0009] Preferably, the protective curtain has a foldable structure, and each blind corner of the protective curtain has a pull rope. Each pull rope is fixedly connected to the corresponding upright. When the protective curtain is open, its surface forms a bent part and a flat part. A flat part is connected between every two adjacent bent parts.

[0010] Preferably, the support member has a support strip, a swing plate, and a punch head. The support strip is horizontally arranged between two columns and fixedly connected to them. Each end of the support strip has a shaft seat. There is a pair of swing plates, which are symmetrically arranged on both sides of the support strip. The middle of each pair of swing plates is shaft-connected between two shaft seats. There are several punch heads, and the number of punch heads is equal to the number of inserts on the buffer member. Each punch head is connected to the end of an insert facing the protective curtain.

[0011] Preferably, each support strip has an end block at both ends, and the surfaces of the two columns each have a support column extending toward the end block. Each end block has a slot for fitting the end block onto the corresponding support column. The end blocks at both ends of each support strip are connected to the support column by nuts and fixed thereto. Each flat part of the protective curtain has a sleeve for the punching head to pass through, and each support strip has an insertion port for the punching head to pass through at a position corresponding to each sleeve.

[0012] Preferably, the middle of each swing plate is connected between two shaft seats by a shaft rod, and a torsion spring is sleeved at both ends of each shaft rod. The two ends of each torsion spring are respectively fixedly connected to the corresponding shaft seat and the end of the corresponding swing plate.

[0013] Preferably, each of the two swing plates has a first contact strip on the side that is close to each other, and the two first contact strips abut against each other. Each of the two swing plates has a second contact strip on the side that is far from each other, and each second contact strip abuts against the surface of the flat part corresponding to the protective curtain.

[0014] Preferably, both the first contact strip and the second contact strip have a rod-shaped structure.

[0015] Preferably, the stamping head is conical, with the conical part of each stamping head positioned between two corresponding first contact strips.

[0016] Preferably, each bend of the protective curtain consists of an upper inclined side and a lower inclined side, and each lower inclined side has several filter holes on its surface for mud and water to seep out.

[0017] The advantages of this application compared to the prior art are:

[0018] 1. This application achieves the blocking of debris flows through the dual protection of protective nets and curtains, as well as the functions of buffers and supports, thereby improving the protective effect and enhancing the stability of the protective nets and curtains in resisting debris flows.

[0019] 2. This application uses a buffer spring to buffer the circular joints, thus buffering the protective net when it is impacted by mudslides, preventing damage caused by deformation of the protective net due to impact, and improving the protective effect.

[0020] 3. This application achieves convenient installation of the protective curtain through its structure, and facilitates the support of the protective curtain by the support components, ensuring that splashing mud and sand are effectively blocked and improving the stability of the protective curtain.

[0021] 4. This application achieves support for the protective curtain by setting up the swing plate and linking it with the plug rod, thereby improving the stability of the protective curtain and preventing the protective curtain from being deformed by the impact of mud and sand. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of this application. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of this application. Figure 2 ;

[0024] Figure 3 yes Figure 1 The right view;

[0025] Figure 4 yes Figure 3 Sectional view at point AA;

[0026] Figure 5 yes Figure 4 Enlarged view of point B;

[0027] Figure 6 This is a partial three-dimensional structural diagram of the protective net and buffer components;

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of the enhanced protective mechanism. Figure 1 ;

[0029] Figure 8 yes Figure 7 The right view;

[0030] Figure 9 This is a schematic diagram of the three-dimensional structure of the enhanced protective mechanism. Figure 2 ;

[0031] Figure 10 yes Figure 9 Enlarged view of point C;

[0032] Figure 11 yes Figure 7 Enlarged diagram of point D.

[0033] The numbers on the map are:

[0034] 1-Column; 1a-Connector; 1b-Pin; 1c-Support column;

[0035] 2-Safety netting; 2a-Elastic rope; 2b-Circular joint point;

[0036] 3-Reinforced protective mechanism; 3a-Buffer component; 3a1-Bar; 3a2-Insertion rod; 3a3-Buffer spring; 3b-Protective curtain; 3b1-Pull rope; 3b2-Bending part; 3b21-Filter hole; 3b3-Flattening part; 3c-Support component; 3c1-Support bar; 3c11-Shaft connector; 3c12-End block; 3c2-Swing plate; 3c21-Shaft; 3c22-Torsion spring; 3c23-First contact bar; 3c24-Second contact bar; 3c3-Punching head. Detailed Implementation

[0037] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0038] like Figures 1-4 As shown, this application provides:

[0039] A debris flow-prone section protection structure includes two pillars 1, each vertically fixed in the soil. A protective net 2 is installed between the two pillars 1. The protective net 2 is composed of several elastic ropes 2a, with a circular joint 2b between every two adjacent elastic ropes 2a. The elastic ropes 2a on the outer edge of the protective net 2 are respectively connected to the corresponding pillars 1. The pillars 1 have connecting parts 1a for connecting the elastic ropes 2a, and the connecting parts 1a are also provided with pins 1b for fixing the elastic ropes 2a. The structure also includes a reinforcing protection mechanism 3 for further preventing splashed mud and sand and for further stabilizing the protective net 2. The reinforcing protection mechanism 3 includes measures to protect the protective net 2 from debris flow impacts. The system includes a buffer element 3a, a protective curtain 3b, and a support element 3c that works in conjunction with the buffer element 3a to support the protective curtain 3b. There are several buffer elements 3a, the number of which is equal to the number of rows of circular nodes 2b on the protective net 2. Each buffer element 3a is positioned between two pillars 1. The buffer elements 3a are evenly distributed along the height of the pillars 1. Each row of circular nodes 2b is connected to one buffer element 3a. The protective curtain 3b is positioned between two pillars 1 and is located in the protective net 2 away from the hillside. There are several support elements 3c, the number of which is equal to the number of buffer elements 3a. Each support element 3c corresponds to one buffer element 3a and is positioned between two pillars 1.

[0040] Based on the above embodiments, the technical problem this application aims to solve is how to strengthen the protection against debris flows to prevent the splashing of mud and sand. To this end, this application involves vertically inserting a pair of pillars 1 into pre-dug pits in the soil, fixing the pillars 1 in place. Then, a protective net 2 is connected between the two pillars 1. When a debris flow occurs, the protective net 2 provides large-area obstruction of the debris flow. To further prevent mud and sand from splashing out through the protective net 2, a protective curtain 3b is connected between the two pillars 1. The protective curtain 3b is positioned on the side of the protective net 2 away from the debris flow, thus blocking any splashed mud and sand and preventing injury to nearby personnel. When a debris flow occurs, the debris flow impacts the protective net 2. Because the protective net 2 is composed of elastic ropes 2a and circular links 2b, it is elastic and buffers the impact of the debris flow. To further mitigate the impact of the debris flow, the buffer 3a is provided, further cushioning the impact of the debris flow on the protective net 2. The improved toughness of the protective net 2 prevents it from being destroyed by the mudslide in a short time, thus ensuring effective mudslide protection. Since some mud and sand splashing through the net 2 will hit the protective curtain 3b, although the curtain 3b blocks the mud and sand, it will still be impacted. To make the curtain 3b more stable, a support member 3c is used. When the net 2 is deformed towards the curtain 3b by the impact of the mudslide, the buffer member 3a acts to cushion the impact. The buffer member 3a also cushions the net 2, simultaneously causing the support member 3c to support the curtain 3b. The curtain 3b is pressed against the net 2 by the support member 3c, making it more stable in resisting mud and sand. Through the dual protection of the net 2 and curtain 3b, as well as the effects of the buffer member 3a and support member 3c, the protection against mudslides is more stable and the effect is more significant.

[0041] Furthermore, such as Figures 5-8 As shown:

[0042] The buffer component 3a has a bar 3a1 and a plug 3a2. The bar 3a1 is horizontally arranged between two columns 1, and both ends of the bar 3a1 are fixed to the corresponding columns 1. There are several plugs 3a2, and the number of plugs 3a2 is equal to the number of circular joints 2b in each row. One end of each plug 3a2 is fixedly inserted into a circular joint 2b, and the other end of each plug 3a2 extends toward the bar 3a1. The bar 3a1 has a socket for each plug 3a2 to be inserted. Each plug 3a2 is fitted with a buffer spring 3a3, and both ends of each buffer spring 3a3 are fixedly connected to the surface of the corresponding circular joint 2b and the surface of the bar 3a1.

[0043] Based on the above embodiments, the technical problem this application aims to solve is how the buffer member 3a can provide a buffering effect when a debris flow impacts the protective net 2. To this end, this application, through the setting of the buffer spring 3a3, ensures that when a debris flow impacts the protective net 2, due to the structure of the net 2 itself, the net 2 deforms towards the protective curtain 3b upon impact. Under the limiting effect of the insert rod 3a2, several circular joints 2b of the protective net 2 move horizontally towards the protective curtain 3b, and under the force of the buffer spring 3a3, each circular joint 2b is buffered, preventing the protective net 2 from being damaged by excessive deformation. Furthermore, with the resistance of the bar rod 3a1, the protective net 2 becomes more stable.

[0044] Furthermore, such as Figure 8 As shown:

[0045] The protective curtain 3b has a foldable structure. Each corner of the protective curtain 3b has a pull rope 3b1. Each pull rope 3b1 is fixedly connected to the corresponding column 1. When the protective curtain 3b is open, its surface forms a bent part 3b2 and a flat part 3b3. A flat part 3b3 is connected between every two adjacent bent parts 3b2.

[0046] Based on the above embodiments, the technical problem this application aims to solve is how to facilitate the installation of the protective curtain 3b and the support member 3c to support it. To this end, this application utilizes a foldable structure for the protective curtain 3b. During installation, simply connect the two pull ropes 3b1 on one side of the protective curtain 3b to the upper end of the corresponding column 1, then open the curtain 3b and connect the two pull ropes 3b1 on the other side of the curtain 3b to the lower end of the corresponding column 1. The protective curtain 3b further impedes the impact of mudslides, preventing mud and sand splashing through the protective net 2 from flying outwards and harming passersby. After being opened, the protective curtain 3b forms a bent portion 3b2 and a flat portion 3b3. With the support member 3c, under the action of the buffer member 3a, the support member 3c can press against the flat portion 3b3 area of ​​the protective curtain 3b, making the protective curtain 3b more stable and less susceptible to damage from splashing mud and sand.

[0047] Furthermore, such as Figures 8-10 As shown:

[0048] The support member 3c has a support plate 3c1, a swing plate 3c2, and a punch head 3c3. The support plate 3c1 is horizontally arranged between the two columns 1 and fixedly connected to them. Each end of the support plate 3c1 has a shaft seat 3c11. There is a pair of swing plates 3c2, which are symmetrically arranged on both sides of the support plate 3c1. The middle of the pair of swing plates 3c2 is shaft-connected between the two shaft seats 3c11. There are several punch heads 3c3. The number of punch heads 3c3 is equal to the number of insert rods 3a2 on the buffer member 3a. Each punch head 3c3 is connected to one end of an insert rod 3a2 facing the protective curtain 3b.

[0049] Based on the above embodiments, the technical problem this application aims to solve is how the support member 3c supports the protective curtain 3b. To this end, this application achieves this by having the insert rod 3a2 move towards the protective curtain 3b when it is impacted by a mudslide. Under the push of the insert rod 3a2, the punch head 3c3 on the insert rod 3a2 punches open a pair of swing plates 3c2, causing the swing plates 3c2 to swing relative to each other. The edges of the swing plates 3c2 press against the flat part 3b3 of the protective curtain 3b, thus supporting the protective curtain 3b. The splashing mud and sand impacting the protective curtain 3b will not deform it.

[0050] Furthermore, such as Figure 3 and Figure 11 As shown:

[0051] Each support plate 3c1 has an end block 3c12 at both ends. The surfaces of the two columns 1 each have a support column 1c extending toward the end block 3c12. Each end block 3c12 has a slot for fitting onto the corresponding support column 1c. The end blocks 3c12 at both ends of each support plate 3c1 are connected to the support column 1c by nuts and fixed thereto. Each flat part 3b3 of the protective curtain 3b has a sleeve opening for the punch head 3c3 to pass through. Each support plate 3c1 has an insertion port for the punch head 3c3 to pass through at a position corresponding to each sleeve opening.

[0052] Based on the above embodiments, when the support strip 3c1 is installed, the end block 3c12 on the support strip 3c1 is supported by the support column 1c on the column 1, and the end of the support column 1c is connected by the nut, so that the support strip 3c1 is fixed between the two columns 1. The arrangement of several support strips 3c1 provides initial support for the protective curtain 3b, facilitates the installation of the support component 3c, and improves the stability of the protective curtain 3b.

[0053] Furthermore, such as Figure 10 As shown:

[0054] The middle part of each swing plate 3c2 is connected between two shaft seats 3c11 by a shaft 3c21. Each shaft 3c21 has a torsion spring 3c22 at both ends. The two ends of each torsion spring 3c22 are fixedly connected to the corresponding shaft seat 3c11 and the end of the corresponding swing plate 3c2, respectively.

[0055] Based on the above embodiments, when the two swing plates 3c2 are pushed open by the punch head 3c3, the two swing plates 3c2 swing relative to each other. Under normal circumstances, due to the force of the torsion spring 3c22, the edges of the two swing plates 3c2 are in contact. As the debris flow impacts the protective net 2, after the punch head 3c3 pushes open the contacting edges of the swing plates 3c2, the relatively distant sides of the two swing plates 3c2 press against the flat part 3b3 of the protective curtain 3b, further improving the stability of the protective curtain 3b. After the debris flow is cleared, when the protective net 2 is not under pressure, the punch head 3c3 will return to its original position under the force of the buffer spring 3a3, and the two swing plates 3c2 will also return to the contacting position under the force of the torsion spring 3c22.

[0056] Furthermore, such as Figure 8 and Figure 10 As shown:

[0057] Each of the two swing plates 3c2 has a first contact strip 3c23 on the side that is close to each other, and the two first contact strips 3c23 abut against each other. Each of the two swing plates 3c2 has a second contact strip 3c24 on the side that is far from each other, and each second contact strip 3c24 abuts against the surface of the flat part 3b3 corresponding to the protective curtain 3b.

[0058] Based on the above embodiments, when the two swing plates 3c2 come into contact, the first contact strips 3c23 of the two swing plates 3c2 abut against each other. After the punch head 3c3 punches open the two first contact strips 3c23, the two swing plates 3c2 swing relative to each other. When the edges of the two swing plates 3c2 come into contact with the flat part 3b3 of the protective curtain 3b, the second contact strips 3c24 of the swing plates 3c2 touch the flat part 3b3 of the protective curtain 3b. As the punch head 3c3 continues to extend, the swing amplitude of the swing plates 3c2 becomes larger, and the second contact strips 3c24 of the two swing plates 3c2 press against the flat part 3b3 of the protective curtain 3b, so that the protective curtain 3b is supported.

[0059] Furthermore, such as Figure 8 and Figure 10 As shown:

[0060] Both the first contact bar 3c23 and the second contact bar 3c24 have a rod-like structure.

[0061] Based on the above embodiments, when the swing plate 3c2 is punched open by the punch head 3c3, and the swing plate 3c2 presses against the flat part 3b3 of the protective curtain 3b, since the first contact strip 3c23 and the second contact strip 3c24 are both rod-shaped structures, the two swing plates 3c2 are easily punched open by the punch head 3c3. When the swing plate 3c2 presses against the protective curtain 3b, the flat part 3b3 area of ​​the protective curtain 3b will not be damaged, so that the protective curtain 3b can block the splashed mud and sand in an intact state.

[0062] Furthermore, such as Figure 8 As shown:

[0063] The stamping head 3c3 is specifically cone-shaped, and the cone of each stamping head 3c3 is located between the two corresponding first contact strips 3c23.

[0064] Based on the above embodiments, when the punch head 3c3 moves between the two swing plates 3c2 along with the insertion rod 3a2, since the punch head 3c3 is cone-shaped, it can easily punch open the first contact strip 3c23 between the two swing plates 3c2. The first contact strip 3c23 of the swing plates 3c2 is gradually widened along the cone surface of the punch head 3c3, making the second contact strip 3c24 of the swing plates 3c2 exert a stronger pressure on the flat part 3b3 of the protective curtain 3b, thus improving the support effect on the protective curtain 3b.

[0065] Furthermore, such as Figure 11 As shown:

[0066] Each bend 3b2 of the protective curtain 3b consists of an upper inclined side and a lower inclined side, and each lower inclined side has several filter holes 3b21 for mud and water to seep out.

[0067] Based on the above embodiments, when a debris flow impacts, since the debris flow contains mud and water, in order to reduce the pressure on the protective net 2 and the protective curtain 3b, the mud and water are discharged through the water filter holes 3b21 opened on the protective curtain 3b, while the soil cannot be discharged, thus preventing the soil from affecting the road surface. The discharge of mud and water makes the protective net 2 and the protective curtain 3b more stable in resisting the debris flow.

[0068] This application achieves the blocking of debris flows through the dual protection of the protective net 2 and the protective curtain 3b, as well as the functions of the buffer 3a and the support 3c, thereby improving the protective effect and enhancing the stability of the protective net 2 and the protective curtain 3b in resisting debris flows.

[0069] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A protective structure for debris flow-prone sections, comprising two columns (1) each fixed vertically in the soil, a protective net (2) between the two columns (1), the protective net (2) being composed of several elastic ropes (2a) and a circular joint (2b) between every two adjacent elastic ropes (2a), the elastic ropes (2a) on the outer edge of the protective net (2) being connected to the corresponding columns (1), the columns (1) having a connecting part (1a) for connecting the elastic ropes (2a), and the connecting part (1a) also having a pin (1b) for fixing the elastic ropes (2a), characterized in that, It also includes a reinforced protective mechanism (3) for further protection against splashed mud and sand and for further stabilizing the protective net (2). The reinforced protective mechanism (3) includes a buffer (3a) and a protective curtain (3b) for buffering the protective net (2) when it is impacted by mudslides, and a support (3c) for supporting the protective curtain (3b) in conjunction with the buffer (3a). There are several buffers (3a), and the number of buffers (3a) is equal to the number of rows of circular nodes (2b) on the protective net (2). Each buffer (3a) All are set between two columns (1), and several buffer pieces (3a) are distributed at equal intervals along the height direction of the columns (1). Each row of circular nodes (2b) is connected to a buffer piece (3a). The protective curtain (3b) is set between two columns (1) and the protective curtain (3b) is located at a position away from the hillside from the protective net (2). There are several support pieces (3c), and the number of support pieces (3c) is equal to the number of buffer pieces (3a). Each support piece (3c) corresponds to a buffer piece (3a) set between two columns (1). The buffer component (3a) has a bar (3a1) and a plug (3a2). The bar (3a1) is horizontally arranged between two columns (1). The two ends of the bar (3a1) are fixed on the corresponding columns (1). There are several plugs (3a2). The number of plugs (3a2) is equal to the number of circular nodes (2b) in each row. One end of each plug (3a2) is fixedly inserted into a circular node (2b). The other end of each plug (3a2) extends toward the bar (3a1). The bar (3a1) has a socket for each plug (3a2) to be inserted. Each plug (3a2) is fitted with a buffer spring (3a3). The two ends of each buffer spring (3a3) are fixedly connected to the surface of the corresponding circular node (2b) and the surface of the bar (3a1). The protective curtain (3b) has a foldable structure. Each corner of the protective curtain (3b) has a pull rope (3b1). Each pull rope (3b1) is fixedly connected to the corresponding column (1). When the protective curtain (3b) is open, its surface forms a bent part (3b2) and a flat part (3b3). A flat part (3b3) is connected between every two adjacent bent parts (3b2). The support member (3c) has a support plate (3c1), a swing plate (3c2) and a punch head (3c3). The support plate (3c1) is horizontally arranged between two columns (1) and fixedly connected to them. Both ends of the support plate (3c1) have a shaft seat (3c11). There is a pair of swing plates (3c2). The pair of swing plates (3c2) are symmetrically arranged on both sides of the support plate (3c1). The middle part of the pair of swing plates (3c2) is shaft-connected between two shaft seats (3c11). There are several punch heads (3c3). The number of punch heads (3c3) is equal to the number of insert rods (3a2) on the buffer member (3a). Each punch head (3c3) is connected to one end of an insert rod (3a2) facing the protective curtain (3b). Each of the two swing plates (3c2) has a first contact strip (3c23) on the side that is close to each other, and the two first contact strips (3c23) abut against each other. Each of the two swing plates (3c2) has a second contact strip (3c24) on the side that is far from each other, and each second contact strip (3c24) abuts against the surface of the flat part (3b3) corresponding to the protective curtain (3b). The stamping head (3c3) is specifically cone-shaped, and the cone of each stamping head (3c3) is located between the two corresponding first contact strips (3c23); Each flat section (3b3) of the protective curtain (3b) has a sleeve opening for the punch head (3c3) to pass through, and each support strip (3c1) has an insertion port for the punch head (3c3) to pass through at a position corresponding to each sleeve opening.

2. The debris flow-prone section protection structure according to claim 1, characterized in that, Each support strip (3c1) has an end block (3c12) at both ends. The surfaces of the two columns (1) have support columns (1c) extending toward the end blocks (3c12). Each end block (3c12) has a slot for fitting the end block (3c12) onto the corresponding support column (1c). The end blocks (3c12) at both ends of each support strip (3c1) are connected to the support column (1c) and fixed by nuts.

3. The debris flow-prone section protection structure according to claim 1, characterized in that, The middle of each swing plate (3c2) is connected between two shaft seats (3c11) by a shaft (3c21). Each shaft (3c21) has a torsion spring (3c22) sleeved at both ends. The two ends of each torsion spring (3c22) are fixedly connected to the corresponding shaft seat (3c11) and the end of the corresponding swing plate (3c2), respectively.

4. The debris flow-prone section protection structure according to claim 1, characterized in that, Both the first contact bar (3c23) and the second contact bar (3c24) have a rod-like structure.

5. The debris flow-prone section protection structure according to claim 1, characterized in that, Each bend (3b2) of the protective curtain (3b) consists of an upper inclined side and a lower inclined side, and each lower inclined side has several filter holes (3b21) for mud and water to seep out.

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