Debris flow barrier structure

Abstract

The utility model relates to the technical field of geological disaster engineering management, and specifically discloses a debris flow blocking structure, which comprises a base body, a plurality of stand columns and a plurality of blocking nets, the base body is cast in a flow channel, and the flow channel is horizontally partitioned, the stand columns are respectively detachably connected to the base body, the stand columns on the two sides of the base body are symmetrically arranged, the outer walls of the stand columns on the two side edges of the base body are attached to the flow channels on the same sides, and the blocking nets are detachably connected between adjacent stand columns, thus solving the problem that in the conventional debris flow blocking dam, when the volume proportion of the impact objects wrapped in the debris flow is too large, the stand columns hinged to the middle base piles are pushed backward by the accumulated impact objects and are at risk of failure.

Description

Technical Field

[0001] This application relates to the field of geological disaster engineering management technology, and specifically discloses a debris flow barrier structure. Background Technology

[0002] Debris flow geological hazards are often managed using structures such as retaining dams, retaining walls, drainage ditches, and diversion channels. Among them, retaining dams are mostly made of masonry, concrete, or reinforced concrete, which serve to block large particles of debris flow, thereby achieving dry-wet separation of debris flow, reducing the scouring and destructive force of debris flow, and thus reducing the risk of disaster.

[0003] In the prior art, such as the retractable barrier dam structure with Chinese patent publication number CN222908670U, there are multiple central foundation piles, multiple columns, and a barrier net. The columns are hinged to the top of the central foundation piles, and the barrier net is connected to the columns. The columns and the barrier net can switch between a first collapsed state and an upright state. When the columns and the barrier net are in the first collapsed state, the columns and the barrier net fall together towards the upstream side of the liquid flow channel. The columns and the barrier net can be driven by the debris flow flowing upstream of the liquid flow channel to switch to the upright state in order to intercept the impact material in the debris flow.

[0004] Although the aforementioned barrier dam structure can intercept impact materials within debris flows, it can only intercept impact materials with a relatively small volume proportion. When the volume proportion of impact materials carried in the debris flow is too large, a large amount of impact materials will accumulate and come into contact with the columns and barrier nets that are in the first collapsed state. This will press down on the columns and barrier nets, causing them to switch to an upright state. The columns and the central foundation piles are connected by a hinged method, which will be pressed backward by the accumulated impact materials, thus posing a risk of failure.

[0005] This invention provides a debris flow barrier structure to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to solve the problem of traditional debris flow retaining dams, where when the volume of impact material carried in the debris flow is too large, the columns hinged to the central foundation piles will be pressed backward by the accumulated impact material, thus posing a risk of failure.

[0007] To achieve the above objectives, the basic solution of this utility model provides a debris flow barrier structure, including a base, several columns, and several nets. The substrate is cast inside the flow channel and the flow channel is laterally separated; The columns are detachably connected to the base, and the columns on both sides of the base are symmetrically arranged, with the outer walls of the columns on both sides of the base attached to the flow channels on the same side. The barrier net can be detachably connected between adjacent posts.

[0008] Furthermore, the wall of the substrate facing the upstream side of the flow channel has a pressure relief groove, and the inner wall of the substrate on both sides of the pressure relief groove is formed with a pressure relief surface whose end is inclined towards the bottom of the groove.

[0009] Furthermore, the bottom of the pressure relief groove is symmetrically formed with inclined pressure relief surfaces on both sides.

[0010] Furthermore, the height of the pressure relief groove is flush with the surface height of the flow channel.

[0011] Furthermore, the surface of the pressure relief groove is cast with baffles.

[0012] Furthermore, the wall surface of the baffle facing the upstream side of the flow channel is an outwardly convex arc-shaped surface.

[0013] Furthermore, the top of each column is inclined towards the downstream side of the flow channel.

[0014] Furthermore, the stop block is hinged to the top of all the columns with a pull rope.

[0015] The principle and effect of this solution are as follows: Compared with existing technologies, this invention addresses the problem that, in the event of a debris flow, the debris flow impacts the foundation, pillars, and barrier net along the flow path. The debris flow first enters the pressure relief trough, where the impact force is mitigated by baffles. Then, the debris flow impacts the barrier net, which acts as a barrier against the impacting material. Furthermore, the barrier net is secured by ropes to prevent it from failing. This solves the problem of traditional debris flow barrier dams where, when the volume of impacting material carried in the debris flow is too large, the pillars hinged to the central foundation piles are pushed backward by the accumulated impacting material, posing a risk of failure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a debris flow barrier structure proposed in an embodiment of this application is shown; Figure 2 A schematic diagram of a column of a debris flow barrier structure proposed in an embodiment of this application is shown. Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0019] The reference numerals in the accompanying drawings include: 1. Flow channel; 2. Base; 3. Inclined surface; 4. Column; 5. Netting; 6. Block; 7. Pull rope; 8. Stud; 9. Connecting plate; 10. Clamping plate.

[0020] A debris flow barrier structure, implementing, for example Figure 1 and Figure 2 As shown, it includes a base 2, uprights 4, and a barrier net 5. In this embodiment, the base 2 is symmetrical from left to right, and a total of five uprights 4 and four barrier nets 5 are installed on the base 2.

[0021] The substrate 2 is cast inside the flow channel 1, and the cast substrate 2 transversely blocks the flow channel 1, with the height of the surface of the substrate 2 being higher than the height of the surface of the flow channel 1.

[0022] like Figure 1 As shown, a pressure relief groove is formed inward on the wall surface of the substrate 2 facing the upstream side of the flow channel 1. In this embodiment, the height of the groove surface is flush with the surface height of the flow channel 1. Of course, in other embodiments, the height of the groove surface can be higher than the surface height of the flow channel 1, thereby further blocking the impact of impacting materials carried in the debris flow.

[0023] Pressure relief surface 1 is formed on the inner wall of the base 2 on both sides of the pressure relief groove. The end of pressure relief surface 1 is inclined towards the bottom of the groove. At the same time, inclined pressure relief surface 2 is symmetrically formed on both sides of the bottom of the pressure relief groove. Furthermore, the adjacent ends of pressure relief surface 2 are inclined along the downstream side of the flow channel 1 compared with the opposite ends.

[0024] like Figure 1 and Figure 2As shown, a column 4 is installed on the base 2 opposite to the inclined surface 3 on both sides of the pressure relief groove, a column 4 is installed on the base 2 at the junction of the inclined surface 3 and the inclined surface 2 on both sides of the pressure relief groove, and a column 4 is installed on the base 2 opposite to the bottom of the pressure relief groove. The tops of the three columns 4 are all inclined towards the downstream side of the flow channel 1. Furthermore, the column 4 and the base 2 are installed using a detachable connection method. Specifically, an inclined hole is drilled inward on the base 2, and the inclined direction of the hole is the same as that of the column 4. A sleeve with internal threads is fixedly installed in the hole. The column 4 has a through-hole with internal threads at the bottom. A stud 8 is screwed into the column 4, passing through the mounting hole, and both ends of the stud 8 extend out of the mounting hole. The internal threads of the stud 8 and the mounting hole, as well as the internal threads of the sleeve, can engage through the threads. During installation, the bottom of the column 4 is inserted into the hole and abuts against the sleeve. Then, the stud 8 is screwed into the sleeve from the top of the column 4 to achieve relative fixation of the base 2 and the column 4.

[0025] Furthermore, a stop block 6 is cast into the surface of the pressure relief groove. The surface height of the stop block 6 is lower than that of the base 2, and the wall of the stop block 6 facing the upstream side of the flow channel 1 is an outwardly convex arc-shaped surface. In this embodiment, the stop block 6 has connecting surfaces formed at the junction of inclined plane 1 3 and inclined plane 2, and at the bottom of the pressure relief groove. A pull rope 7 is hinged between the top of the column 4 facing the connecting surface and the connecting surface. The pull rope 7 can specifically be a steel rope. Of course, in other embodiments, connecting surfaces can be added and pull ropes 7 can be hinged accordingly, depending on the installation position and number of columns 4.

[0026] like Figure 2 As shown, in this embodiment, the barrier net 5 is installed between adjacent columns 4, and the barrier net 5 is specifically a nylon net. Clamping plates 10 are fixed around the perimeter of the barrier net 5, and several secondary positioning holes are formed on the clamping plates 10. Connecting plates 9 are welded to both sides of each column 4. The connecting plates 9 have insertion grooves for inserting the clamping plates 10 and several main positioning holes. After the clamping plates 10 are inserted into the insertion grooves, the secondary positioning holes align with the main positioning holes, and the plates are fixed by screwing in bolts.

[0027] When this utility model is used, the column 4 is fixed on the base 2, the net 5 is fixed between the columns 4, and the outer wall of the column 4 on both sides of the base 2 is attached to the flow channel 1 on the same side. The column 4 is pulled by the pull rope 7. When a debris flow occurs, the debris flow impacts the base 2, the column 4 and the barrier net 5 along the flow channel 1. At this time, the debris flow will first enter the pressure relief groove and the impact force will be reduced by the baffle block 6. Then the debris flow impacts the barrier net 5, which plays a role in blocking the impacting objects in the debris flow. The barrier net 5 is pulled by the rope 7 to prevent the barrier net 5 from failing.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A debris flow barrier structure, characterized in that, Includes the base, several pillars, and several fence nets; The substrate is cast inside the flow channel and the flow channel is laterally separated; The columns are detachably connected to the base, and the columns on both sides of the base are symmetrically arranged, with the outer walls of the columns on both sides of the base attached to the flow channels on the same side. The barrier net can be detachably connected between adjacent posts.

2. The debris flow barrier structure according to claim 1, characterized in that, The substrate has a pressure relief groove on the wall facing the upstream side of the flow channel, and the inner wall of the substrate on both sides of the pressure relief groove is formed with a pressure relief surface whose end is inclined towards the bottom of the groove.

3. The debris flow barrier structure according to claim 2, characterized in that, The pressure relief groove has two inclined pressure relief surfaces symmetrically formed on both sides of its bottom.

4. A debris flow barrier structure according to claim 2, characterized in that, The height of the pressure relief groove is flush with the surface height of the flow channel.

5. A debris flow barrier structure according to claim 2, characterized in that, The surface of the pressure relief groove is reinforced with baffles.

6. A debris flow barrier structure according to claim 5, characterized in that, The wall of the baffle facing the upstream side of the flow channel is an outwardly convex arc-shaped surface.

7. A debris flow barrier structure according to claim 5, characterized in that, The tops of the columns are all inclined towards the downstream side of the flow channel.

8. A debris flow barrier structure according to claim 7, characterized in that, The stop block is hinged to the top of all the columns with a pull rope.

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