CN112411407A

CN112411407A - Pile net structure

Info

Publication number: CN112411407A
Application number: CN202011455789.1A
Authority: CN
Inventors: 刘志明; 周青爽; 王岩; 孙红林; 郭建湖; 朱树念; 赵晋乾; 付明; 李睿; 李慈航
Original assignee: China Railway Siyuan Survey and Design Group Co Ltd
Current assignee: China Railway Siyuan Survey and Design Group Co Ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-02-26

Abstract

The embodiment of the application provides a stake net structure, including interception stake crowd and cable wire, through cable wire and interception stake knot between the interception stake become the protection network, distance between the adjacent interception stake and the distance between the adjacent cable wire all can set up according to actual conditions, have better adaptability, even cable wire and interception stake suffer damage also can quick restoration. The arrangement of the interception piles and the connection of the steel cables among the interception piles do not need large-scale construction equipment for entering construction, the steel cables and the interception pile groups are simple in structure, compared with heavy structures such as diversion channels, interception dams and interception walls, the pile net structure is low in construction difficulty, short in construction period and simple in construction conditions, and materials such as the interception piles and the steel cables are cheap compared with the heavy structures such as the interception dams. The intercepting pile is partially positioned in a stable stratum, so that the intercepting pile can be firmly installed at the bottom of the flow channel, the steel cable is connected to the intercepting pile, and the steel cable does not need to be installed and connected by depending on the lateral wall of the flow channel in the transverse direction of the flow channel.

Description

Pile net structure

Technical Field

The application relates to the technical field of disaster protection, in particular to a pile net structure.

Background

For the prevention and treatment of the debris flow or the dangerous falling rocks, methods such as drainage and interception of solid substances in the dangerous falling rocks or the debris flow and the like are often adopted by diversion channels, interception dams, debris blocking walls and the like. These measures have high construction difficulty, long period, high protection cost and are difficult to repair quickly.

Disclosure of Invention

In view of this, it is desirable to provide a pile net structure, so as to reduce the construction period and the protection cost, and have the characteristic of easier repair after damage.

In order to achieve the above object, an embodiment of the present application provides a pile net structure, including:

the intercepting pile group comprises a plurality of intercepting piles, and each intercepting pile is partially positioned in a stable stratum at the bottom of a material flow channel; and

and the steel cables are connected between every two adjacent intercepting piles transversely along the material flow channel.

In one embodiment, each of the steel cables is connected to two adjacent intercepting piles.

In one embodiment, the number of the types of the steel cables is multiple; one of the steel cables is a first steel cable, a plurality of first steel cables are connected between two adjacent intercepting piles, and the first steel cables are arranged at intervals along the height direction of the intercepting piles; the other steel cable is a second steel cable, and the second steel cable is connected between every two adjacent first steel cables along the height direction of the intercepting pile.

In one embodiment, the intercepting piles are arranged in a plurality of rows, and the height of the intercepting piles exposed out of the ground is gradually increased along the flow direction of the material flow.

In one embodiment, the intercepting piles of minimum height exposed to the ground are reference intercepting piles, the height exposed to the ground of which is less than or equal to 0.5 times the diameter of the largest stones in the flow of material.

In one embodiment, the intercepting piles are arranged in a plurality of rows, each row is provided with at least one intercepting pile, and the steel cable is connected between every two adjacent intercepting piles in each row; the steel cable and the intercepting piles are enclosed into first meshes, and the pore diameter of the first meshes is gradually reduced along the flowing direction of the material flow.

In one embodiment, said plurality of said steel cords are enclosed as second mesh openings, said second mesh openings having decreasing pore sizes in the direction of flow of said material stream.

In one embodiment, the shape of the intercepting pile group is a preset shape, the outer boundary of the preset shape comprises a large end boundary, a small end boundary and a side boundary, and the side boundary is located between the large end boundary and the small end boundary; when the material flow is about to flow through the intercepting pile group, the small end boundary is positioned between the large end boundary and the material flow; the distance between the position of the intercepting pile on the side boundary and the corresponding flow channel side wall is gradually reduced along the flow direction of the material flow.

In one embodiment, the material stream is a debris stream or a rock mass.

In one embodiment, the distance between two adjacent intercepting piles is less than or equal to 1.5 times the diameter of the largest stone in the material flow in the transverse direction of the flow channel.

In one embodiment, the pile net structure further comprises a buffer pile group located at the upstream end of the intercepting pile group, the buffer pile group comprises a plurality of buffer piles, each buffer pile is partially located in a stable stratum at the bottom of a flow channel of material flow, and the distance between two adjacent buffer piles is configured to enable the largest stone in the material flow to pass through the space between the two adjacent buffer piles.

The pile net structure of this application embodiment, including interception stake crowd and cable wire, through cable wire and the interception stake knot between the interception stake becomes the protection network, in order to intercept the material flow, distance between the adjacent interception stake and the distance between the adjacent cable wire all can set up according to actual conditions, it is comparatively convenient to dismouting regulation between interception stake and the cable wire, have better ground adaptability, even cable wire and interception stake suffer damage, lay the interception stake again and pull the construction cycle that the cable wire knot becomes the protection network between the interception stake also is comparatively short, the pile net structure of this application embodiment can restore comparatively fast. The arrangement of the intercepting piles and the connection of the steel cables among the intercepting piles do not need large-scale construction equipment for entering construction, the influence of terrain conditions and foundation conditions is limited, the structural forms of the steel cables and the intercepting pile groups are simpler, construction and material taking are both more convenient, and compared with heavy structures such as diversion channels, intercepting dams and intercepting walls, the pile net structure of the embodiment of the application has the advantages of smaller construction difficulty, shorter construction period, simple construction conditions, cheaper materials such as the intercepting piles and the steel cables compared with heavy structures such as the intercepting dams and the like, and lower protection cost. The intercepting pile is partially located in a stable stratum, so that the intercepting pile can be firmly installed at the bottom of the flow channel and can bear certain impact, the steel cable is connected to the intercepting pile, the steel cable does not need to depend on the lateral wall of the flow channel in the transverse direction of the flow channel for installation and connection, even if the lateral wall of the flow channel in the transverse direction of the flow channel is covered by loose substances, the installation and connection of the steel cable cannot be influenced, and the installation and the arrangement of the steel cable are hardly influenced by topographic conditions.

Drawings

Fig. 1 is a schematic view of an embodiment of the present disclosure in which a picket net structure is disposed within a flow path of a material flow;

FIG. 2 is a cross-sectional view taken at location B-B of FIG. 1;

fig. 3 is a view of the intercepting pile group of the embodiment of the present application, which is shown in a direction C in fig. 2, and in which a steel cable is not shown, wherein the intercepting pile group has a predetermined shape of a triangle, and a solid rectangular frame is the intercepting pile;

fig. 4 is a view of the intercepting pile group of an embodiment of the present application, which is shown in a direction C of fig. 2, and in which a steel cable is not shown, wherein the intercepting pile group has a predetermined shape of a trapezoid, and a solid rectangular frame is an intercepting pile;

fig. 5 is a view of the intercepting pile group of an embodiment of the present application, shown in a direction C of fig. 2, showing a steel cable, in which a predetermined shape of the intercepting pile group is an arch shape, and a solid rectangular frame is the intercepting pile;

fig. 6 is a view of the intercepting pile group of the embodiment of the present application, which is shown in a direction C of fig. 2, and in which a wire is not shown, wherein the intercepting pile group is a rectangle in a predetermined shape, and a solid-line rectangle frame is a intercepting pile.

Description of reference numerals: intercepting a pile group 1; a blocking pile 11; a first wire rope 21; a second wire rope 22; the first mesh 100; the second net holes 200; a large end boundary 300; an end-of-line boundary 400; a side boundary 500; a flow channel side wall 3; a heart lock ring 4; a stress buffering ring 5.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the present application, "upper", "lower", "top", "bottom", orientation or positional relationship is based on the orientation or positional relationship shown in fig. 1, it being understood that these orientation terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application.

In the present description, referring to fig. 2-6, the material flow is in the direction of arrow R. When the material flow is a debris flow, the direction indicated by the arrow R in the figure is the flow direction of the debris flow.

In the description of the present application, the "front" and "rear" orientations and positional relationships are based on the orientation and positional relationship shown in fig. 2, it being understood that these orientation terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application. In fig. 2, the direction from "front" to "rear" is the flow direction of the material flow indicated by arrow R.

In the present description, the flow channel transverse direction generally refers to the direction of two sides of the flow channel, please refer to fig. 1, in which the direction indicated by arrow a is the flow channel transverse direction.

The term "connected" in the description of the present application may be directly connected or indirectly connected.

Before describing the embodiments of the present application, it is necessary to analyze the reasons that the structure for protecting debris flow in the prior art has a long construction period, is high in protection cost, and is difficult to repair quickly after being damaged, and the technical solution of the embodiments of the present application is obtained through reasonable analysis.

In the prior art, the protection and interception of debris flow or dangerous rockfall are usually implemented by constructing diversion channels, interception dams or stone blocking walls, and mainly intercept or drain stones. The diversion canal, the interception dam and the stone blocking wall generally need large-scale construction equipment for entering construction, are influenced by factors such as terrain conditions and foundation conditions, and have the advantages of higher construction difficulty, longer construction period and higher protection cost. Because the construction period required by the construction of the diversion trench is long, when the diversion trench, the interception dam or the stone blocking wall is damaged by impact, the repair process also needs long time and is difficult to repair quickly.

In view of this, the present embodiment provides a pile net structure, please refer to fig. 1 and 2, which includes an intercepting pile group 1 and a steel cable. The intercepting pile group 1 comprises a plurality of intercepting piles 11, and each intercepting pile 11 is partially positioned in a stable stratum at the bottom of a flow channel of material flow. And a steel cable is connected between two adjacent intercepting piles 11 along the transverse direction of the material flow channel. According to the structure form, the steel cables between the intercepting piles 11 and the intercepting piles 11 form the protective net to intercept material flow, the distance between the adjacent intercepting piles 11 and the distance between the adjacent steel cables can be set according to actual conditions, the intercepting piles 11 and the steel cables are convenient to disassemble, assemble and adjust, and have good adaptability, even if the steel cables and the intercepting piles 11 are damaged, the construction period of re-laying the intercepting piles 11 and pulling the steel cables between the intercepting piles 11 to form the protective net is short, and the pile net structure can be repaired quickly. The arrangement of the interception piles 11 and the connection of the steel cables between the interception piles 11 do not need large-scale construction equipment for entering construction, the influence of terrain conditions and foundation conditions is limited, the structural forms of the steel cables and the interception pile groups 1 are simple, construction and material taking are convenient, and compared with heavy structures such as diversion channels, interception dams and interception walls, the pile net structure of the embodiment of the application is low in construction difficulty, short in construction period, simple in construction conditions, relatively cheap in materials such as the interception piles 11 and the steel cables and the like compared with the heavy structures such as the interception dams, and low in protection cost. The intercepting pile 11 is partially positioned in a stable stratum, so that the intercepting pile 11 can be firmly installed at the bottom of the flow channel and can withstand certain impact, the steel cable is connected to the intercepting pile 11 and does not need to depend on the flow channel side wall 3 in the transverse direction of the flow channel for installation and connection, even if the flow channel side wall 3 in the transverse direction of the flow channel is covered by loose substances, the installation and connection of the steel cable cannot be influenced, and the installation and arrangement of the steel cable are hardly influenced by topographic conditions.

It should be explained that a stable formation generally refers to a formation below the residue of a material stream. Taking the debris flow as an example, the debris flow usually occurs many times at the place where the debris flow occurs, and the debris is accumulated at the bottom of the flow channel every time the debris flow passes through the flow channel, and the debris is generally loose and difficult to fix the intercepting pile 11. The stratum below the residue is usually the original foundation stratum of the flow channel before the debris flow passes through, and the stratum is relatively stable and is not loose like debris flow residue, so that the interception pile 11 can be well fixed, the interception pile 11 is prevented from being separated from the stratum in the impact process of material flow, and the interception and protection capability of the pile net structure on the debris flow is improved.

In one embodiment, the material stream may be a debris stream. It can be known that when a debris flow disaster occurs, water flow is wrapped by stones and has larger impact energy.

It should be explained that the intercepted objects in the debris flow are mainly stones, and may be also mixed with other solid intercepted objects such as trees, wherein the impact energy of the stones is larger than that of other intercepted objects, and the destructive power is stronger.

It can be understood that the pile-net structure is convenient to disassemble and assemble, can be repeatedly used in disaster frequent areas, and is convenient for quickly propelling post-disaster reconstruction work.

It can be understood that the steel cable and the intercepting pile 11 can be made of local materials, so that the method has strong practicability, controllable quality and convenience for later-stage replacement and maintenance, and can effectively reduce the protection cost of debris flow or dangerous rockfall.

In one embodiment, referring to fig. 1, each steel cable is connected to two adjacent intercepting piles 11. According to the structure, the impact load borne by each steel cable is almost borne by the corresponding intercepting pile 11, different steel cables bear the impact load of material flows such as debris flow and the like independently, the mutual influence among different steel cables is small, the steel cable is stressed uniformly, the situation that the steel cables are easy to damage due to the fact that the load borne by the steel cables is transmitted to one steel cable can be well avoided.

In one embodiment, referring to fig. 1, the number of the types of the steel cables may be multiple, wherein one steel cable is the first steel cable 21, a plurality of first steel cables 21 are connected between two adjacent intercepting piles 11, and the plurality of first steel cables 21 are spaced along the height direction of the intercepting piles 11. The other steel cable is a second steel cable 22, and the second steel cable 22 is connected between two adjacent first steel cables 21 along the height direction of the intercepting pile 11. By adopting the structure, under the condition that the pile spacing of the intercepting pile 11 is not changed, the smaller mesh aperture is obtained, and the interception of stones with smaller particle sizes in material flows such as debris flows is facilitated.

In one embodiment, referring to fig. 1, the second steel cable 22 is also a kind of steel cable, the second steel cable 22 is connected to two adjacent intercepting piles 11, and the second steel cable 22 is connected to two adjacent first steel cables 21. Thus, the second wire rope is substantially located on the diagonal of the rectangle enclosed by two adjacent first wire ropes 21 and two adjacent two-pole intercepting piles 11, and forms a triangular mesh. The overall bearing capacity of the wire rope between two adjacent intercepting piles 11 can be improved to some extent.

In an embodiment, referring to fig. 1, two second steel cables 22 may be connected between two adjacent first steel cables 21 along the height direction of the intercepting pile 11, and the two second steel cables 22 are arranged crosswise.

In one embodiment, only one second steel cable 22 may be connected between two adjacent first steel cables 21 along the height direction of the intercepting pile 11.

In one embodiment, referring to fig. 1, between two adjacent intercepting piles 11, the first steel cable 21 at the bottom is a reference steel cable, and a second steel cable 22 may be further disposed below the reference steel cable.

In one embodiment, referring to fig. 1, the number of the second steel cables 22 below the reference steel cable is two, and the two second steel cables 22 are arranged in a crossing manner.

In an embodiment, only the first steel cable 21 may be provided, and the second steel cable 22 may not be provided. In this way, a larger mesh aperture can be obtained than in the case where both the first wire 21 and the second wire 22 are present.

In one embodiment, referring to fig. 1, the heights of the two ends of each first steel cable 21 may be equal.

In one embodiment, the steel cord may be steel strand.

Specifically, the first steel cord 21 and the second steel cord 22 are both steel strand wires.

In one embodiment, not only the steel cable is connected between two adjacent intercepting piles 11 in the transverse direction of the material flow, but also the steel cable can be arranged between two adjacent intercepting piles 11 in the flow direction of the material flow.

It is understood that the mesh may be surrounded by steel cables, or by steel cables and the intercepting piles 11.

In one embodiment, the number of the steel cables may be multiple.

In one embodiment, referring to fig. 1, the steel cables and the intercepting piles 11 are enclosed to form a first mesh 100, and a plurality of steel cables are enclosed to form a second mesh 200.

Specifically, referring to fig. 1, the second steel cable 22 and the intercepting pile 11 are enclosed to form a first mesh 100, and the first steel cable 21 and the second steel cable 22 are enclosed to form a second mesh 200.

In one embodiment, when the second steel cable 22 is not provided, the first steel cable 21 and the intercepting pile 11 are enclosed to form the first mesh 100.

In one embodiment, referring to fig. 2, the intercepting piles 11 are arranged in a plurality of rows, each row is provided with at least one intercepting pile 11, and a steel cable is connected between two adjacent intercepting piles 11 of each row. The pore size of the first net holes 100 is gradually decreased in the flow direction of the material flow. According to the structure, along the flowing direction of material flow, a plurality of rows of intercepting piles 11 and steel cables among the piles intercept stones in the material flow from large to small step by step. By taking the front and back direction as a reference, the first mesh holes 100 formed by the front row intercepting piles 11 and the steel cables are large in aperture, larger stones in material flow such as debris flow are intercepted, the smaller stones can leak to the rear row intercepting piles 11, the first mesh holes 100 formed by the rear row intercepting piles 11 and the steel cables are small in aperture, the smaller stones leaking to the rear row can be intercepted, the pile net structure intercepts stones in material flow such as debris flow from large to small step by step, and impact of material flow such as debris flow on the pile net structure can be effectively reduced.

It will be appreciated that both first and

second mesh openings

100, 200 may be present in the piling configuration. In one embodiment, the pore size of the first mesh 100 and the pore size of the second mesh 200 are gradually decreased in the flow direction of the material flow. By adopting the structure, the multi-row intercepting piles 11 and the steel cables among the piles can intercept stones in material flow such as debris flow from large to small step by step, and the impact of the material flow on the pile net structure is reduced. The second mesh 200 formed by enclosing the steel cable between two adjacent intercepting piles 11 in the front row has larger aperture, and the second mesh 200 formed by enclosing the steel cable between two adjacent intercepting piles 11 in the rear row has smaller aperture.

In one embodiment, referring to fig. 2, a first distance D4 is formed between two adjacent first steel cables 21 along the height direction of the intercepting pile 11, and the first distance D4 gradually decreases along the flowing direction of the material flow. The structure is beneficial to the gradual interception of the pile net structure from large to small of stones in material flows such as debris flows.

In one embodiment, the first distance D4 is greater than or equal to 0.5 times the diameter of the largest stone block.

In an embodiment, the first distance D4 between each two adjacent first steel cables 21 may be equal or different along the height direction of the intercepting pile 11.

It should be explained that the front row and the rear row are relative concepts, the front row being in a more forward position relative to the rear row.

It should be noted that, referring to fig. 2, in any two rows of the intercepting piles 11, the front row is the right row, and the rear row is the left row, and four rows of the intercepting piles 11 are shown in the figure.

In one embodiment, the connection between the wire rope and the intercepting piles 11 may be a direct connection.

Specifically, for example, the first wire rope 21 is wound around the intercepting pile 11 for one or more turns, and then the first wire rope 21 is fastened to the intercepting pile 11 by a rope clip. The second steel cable 22 is wound on the intercepting pile 11 for one or more turns, and then the second steel cable 22 is locked on the intercepting pile 11 by a cable clamp.

In one embodiment, referring to fig. 1 and 2, the steel cable may be indirectly connected to the intercepting piles 11.

Specifically, for example, the piling bar structure further includes heart-shaped locking rings 4, a plurality of heart-shaped locking rings 4 are sleeved on the intercepting pile 11, and after the first steel cable 21 passes through the corresponding heart-shaped locking ring 4, the part of the first steel cable 21 passing through the corresponding heart-shaped locking ring 4 is locked by the rope chuck with the part of the first steel cable 21 not passing through the corresponding heart-shaped locking ring 4, so that the corresponding heart-shaped locking ring 4 is tightly fixed on the intercepting pile 11. After the second steel cable 22 passes through the corresponding heart-shaped lock ring 4, the part of the second steel cable 22 passing through the corresponding heart-shaped lock ring 4 is locked by the rope chuck with the part of the second steel cable 22 not passing through the corresponding heart-shaped lock ring 4, so that the corresponding heart-shaped lock ring 4 is tightly fixed on the intercepting pile 11.

In one embodiment, referring to FIG. 1, a plurality of wires meeting each other are threaded through the same heart lock ring 4.

Specifically, referring to fig. 1, at the heart-shaped lock ring 4 at the top of the leftmost intercepting pile 11 shown in fig. 1, a first wire rope 21 and a second wire rope 22 are crossed, and a first wire rope 21 and a second wire rope 22 are passed through the heart-shaped lock ring 4 at the top of the leftmost intercepting pile 11 and locked. At the heart-shaped lock ring 4 in the middle of the leftmost intercepting pile 11 shown in fig. 1, a first wire rope 21 meets two second wire ropes 22, and a first wire rope 21 and two second wire ropes 22 pass through the same heart-shaped lock ring 4 in the middle of the leftmost intercepting pile 11 and are locked.

In one embodiment, the heart-shaped lock ring 4 is clamped to the catch pile 11, and the heart-shaped lock ring 4 is prevented from moving on the catch pile 11 by the friction force between the heart-shaped lock ring 4 and the catch pile 11.

In one embodiment, the catch pile 11 may be provided with a slot, and when the first steel cable 21 is locked by the cable clamp, the heart lock ring 4 is inserted into the slot, so as to fix the heart lock ring 4 to the catch pile 11 and prevent the heart lock ring 4 from moving on the catch pile 11.

In an embodiment, referring to fig. 1, the pile net structure further includes stress buffering rings 5, two ends of each steel cable are provided with the stress buffering rings 5, and two ends of each steel cable penetrate through the corresponding stress buffering rings 5. According to the structure, the load of the stone block impacting on the steel cable is buffered through the stress buffering ring 5, and the damage of the steel cable caused by the excessive rigid impact of the stone block on the steel cable is avoided.

In one embodiment, part of the wire rope may not be connected to the intercepting pile 11, and part of the wire rope may be connected to the wire rope connected to the intercepting pile 11.

In one embodiment, the intercepting piles 11 may be made of steel rails.

In one embodiment, the intercepting piles 11 may be made of steel columns.

In one embodiment, the intercepting piles 11 may be made of concrete.

In one embodiment, referring to fig. 2, the intercepting piles 11 are arranged in a plurality of rows, and the height of the intercepting piles 11 exposed to the ground is gradually increased along the flowing direction of the material flow. According to the structure, among the multiple rows of intercepting piles 11, the front row of intercepting piles 11 are shorter, the rear row of intercepting piles 11 are higher, when impact energy of stones in material flow of debris flow and the like is larger, the stones impact the shorter intercepting piles 11, and after the stones are consumed by the shorter intercepting piles 11, the stones can possibly cross over the tops of the shorter intercepting piles 11 and cannot be completely intercepted by the shorter intercepting piles 11, and after the impact energy of the stones is buffered, the stones are blocked by the rear row of intercepting piles 11, so that impact of the stones on the intercepting piles 11 can be reduced to a certain extent.

In one embodiment, rocks with high impact energy may pass over the rows of intercepting piles 11 to dissipate the impact energy.

In one embodiment, the minimum exposed ground height interception pile 11 is a reference interception pile with an exposed ground height less than or equal to 0.5 times the diameter of the largest stones in the material flow. According to the structure, as the height of the intercepting piles 11 exposed out of the ground is gradually increased along the flowing direction of material flow, the reference intercepting pile with the smallest height exposed out of the ground is often the most front, and the height of the reference intercepting pile exposed out of the ground is less than or equal to 0.5 times of the diameter of the largest stone in material flow such as debris flow, so that the stone with larger impact energy in the material flow such as debris flow can conveniently cross the top of the reference intercepting pile, and the impact energy of the stone is consumed.

In particular, with reference to fig. 2, the reference picket is the rightmost row of pickets 11.

It will be understood that the higher the height of the intercepting piles 11 of the latter row is exposed to the ground, the higher the height of the intercepting piles 11 of the last row is exposed to the ground may be greater than the diameter of the largest stone block.

It should be explained that, referring to fig. 2, the last row of intercepting piles 11 is the leftmost row of intercepting piles 11 in fig. 2.

In one embodiment, all the intercepting piles 11 may be exposed to the ground at the same height.

In one embodiment, referring to fig. 2, the bottom of the material flow channel is sloped. Along the flowing direction of the material flow, the height of the bottom of the flow channel is gradually reduced, namely the bottom of the flow channel is gradually inclined downwards.

It will be appreciated that as the material flow, such as a debris flow, flows within the flow passage, the impact energy of the material flow, such as a debris flow, is generally less the closer to the side wall 3 of the flow passage. In one embodiment, referring to fig. 3 to 6, the intercepting pile group 1 has a predetermined shape, and the outer boundary of the predetermined shape includes a large end boundary 300, a small end boundary 400, and a side boundary 500, and the side boundary 500 is located between the large end boundary 300 and the small end boundary 400. When the material flow is to flow through the group of interceptor piles 1, the small end boundary 400 is located between the end boundary and the material flow. The distance D1 between the position of the intercepting pile 11 on the side boundary 500 and the corresponding runner wall gradually decreases in the flow direction of the material flow. With such a structure, the small end boundary 400 is in front of the large end boundary 300, and the distance D1 between the position of the intercepting pile 11 on the side boundary 500 and the corresponding flow channel wall is gradually reduced along the flow direction of the material flow, the material flow flows from the small end boundary 400 to the large end boundary 300, after the material flow impacts the intercepting pile 11 of the small end boundary 400, the small end boundary 400 has a certain dispersion effect on the material flow, and part of the material flow is divided towards the flow channel side walls 3 on both sides of the flow channel after impacting the small end boundary 400. On one hand, the impact energy of material flow can be greatly consumed, on the other hand, the impact energy of stones consumed by the intercepting piles 11 at the two sides of the intercepting pile group 1 is fully utilized, so that the possibility that the intercepting piles 11 far away from the side wall 3 of the flow channel are damaged due to excessive impact of material flow such as debris flow is reduced. That is, the possibility that the intercepting piles 11 near the middle of the flow path of the material flow are damaged by impact is reduced.

It should be noted that the large end boundary 300 and the small end boundary 400 are relative, and the large end boundary 300 is larger than the small end boundary 400 in the direction along both sides of the flow passage.

In one embodiment, a plurality of intercepting piles 11 are symmetrically arranged along the transverse direction of the flow passage.

It will be appreciated that the outer boundary of the predetermined shape is bounded by part of the intercepting piles 11, the other intercepting piles 11 being located within the outer boundary.

In one embodiment, referring to fig. 3, the predetermined shape is a triangle, and as shown by the dotted lines, the intercepting piles 11 are disposed at three points of the triangle, the small-end boundary 400 is one of the points of the triangle, and the large-end boundary 300 is a side line corresponding to the point. The remaining two edges of the triangle are side boundaries 500.

It will be appreciated that for a point, the equivalent dimension along both sides of the flow channel is infinitely close to zero. I.e. the size of the triangle's cusps in the direction of the two sides of the flow channel is infinitely close to zero.

In one embodiment, referring to fig. 4, the predetermined shape is a trapezoid, as shown by the dotted line, the large boundary 300 is the longer side line of the two parallel lines of the trapezoid, and the small boundary 400 is the shorter side line of the two parallel lines of the trapezoid. The side boundaries 500 are the two waistlines of the trapezoid.

In one embodiment, referring to fig. 5, the predetermined shape is an arch, as shown by the dotted lines, the outer boundaries of the arch are provided with the intercepting piles 11, the small end boundary 400 is the most forward point on the arch arc, the intercepting piles 11 are provided at the point, and the rest of the intercepting piles 11 are located behind the intercepting piles 11 at the small end boundary 400. The large end boundary 300 is a side line corresponding to the arcuate arc. The side boundary 500 is an arcuate arc on both sides of the lower boundary 400.

It will be appreciated that the forward-most point on the arcuate arc is infinitely close to zero in the transverse dimension of the flow path.

In one embodiment, referring to fig. 6, the predetermined shape may be a rectangle, as shown by the dotted line.

In one embodiment, all of the intercepting piles 11 may be arranged in a single row transversely along the flow path.

In one embodiment, the depth of the interception piles 11 embedded in the stabilization ground is greater than or equal to 1.5 times the maximum stone diameter in the material flow. The structure is such that the interception pile 11 can be inserted into the stable stratum more firmly, and the possibility that the interception pile 11 is pulled out of the stable stratum under the impact of the stone is reduced.

In one embodiment, referring to fig. 3 to 6, the distance D2 between two adjacent intercepting piles 11 in the transverse direction of the flow path is less than or equal to 1.5 times the diameter of the largest stone in the flow path. With the adoption of the structure, on one hand, the problem that the steel cable between two adjacent intercepting piles 11 is too long, so that the self load is heavier and the installation is inconvenient is avoided. On the other hand, the distance D2 between two adjacent intercepting piles 11 is suitable, which is beneficial for the pile mesh structure to intercept stones in the material flow.

In one embodiment, the intercepting pile 11 is fixed in the stable stratum in a drilling and embedding manner, and is sealed by mortar.

In one embodiment, the distance D2 between two adjacent intercepting piles 11 may be equal or different in the transverse direction of the flow path.

In one embodiment, the distance between two adjacent intercepting piles 11, in the transverse direction of the flow path, may be greater than the diameter of the largest stone. According to the structure, when the impact energy of the stone is large, the steel cable between the front row of intercepting piles 11 is broken, the front row of intercepting piles 11 do not directly intercept the stone, after the stone impacts the front row of intercepting piles 11, the stone decelerates between two adjacent intercepting piles 11 of the front row and passes through the front row of intercepting piles 11, flows to the rear row of intercepting piles 11, and the front row of intercepting piles 11 play a role in consuming the impact energy of the stone.

In one embodiment, referring to fig. 3 to 6, the distance D3 between two adjacent intercepting piles 11 is less than or equal to 1.5 times the diameter of the largest stone in the material flow in the front-rear direction.

In one embodiment, the distance D3 between two adjacent intercepting piles 11 may be equal or different along the front-rear direction.

In one embodiment, the pile net structure further comprises a buffer pile group located at the upstream end of the intercepting pile group 1, the buffer pile group comprises a plurality of buffer piles, each buffer pile is partially located in a stable stratum at the bottom of a flow channel of material flow, and the distance between two adjacent buffer piles is configured to enable the largest stones in the material flow to pass through between two adjacent buffer piles. Like this structural style, the material flows through the buffering stake crowd before flowing through intercepting stake 11, through the impact energy of stone and buffering stake impact consumption stone, because the stake interval of buffering stake is great, the stone can slow down and pass through the buffering stake and not directly be intercepted by the buffering stake, reduces the impact load that the buffering stake received.

The buffer pile plane arrangement is carried out by considering the material flow incoming direction and the space condition, so that the impact force of the material flow on the buffer pile is reduced, the relatively small destructive power is ensured, and correspondingly, the impact resistance of the buffer pile can be relatively small.

It should be explained that referring to fig. 2, the buffer piles are located at the right side of the intercepting pile 1 shown in fig. 2. The buffer piles are not shown in fig. 2.

It is to be understood that the material flow is not limited to a debris flow. In one embodiment, the material stream may be rock. The pile net structure can protect dangerous rock falling rocks, and the falling rocks roll in the flow channel. When a dangerous rockfall disaster occurs, rainwater cannot be washed away or other water sources cannot flow together with rocks, and material flow is falling rocks instead of mud-rock flow mixed with water flow and rocks.

In one embodiment, the bottom of the flow channel is typically a valley slope and the side walls 3 are typically valley bank slopes.

In one embodiment, the interceptor piles 11 are arranged between the toe lines of the valley bank slopes on both lateral sides of the flow channel.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pile net structure, comprising:

2. The pile net structure according to claim 1, wherein each of said steel cables is connected to two adjacent ones of said intercepting piles.

3. The pile net structure according to claim 2, characterized in that the number of types of the wire ropes is plural; one of the steel cables is a first steel cable, a plurality of first steel cables are connected between two adjacent intercepting piles, and the first steel cables are arranged at intervals along the height direction of the intercepting piles; the other steel cable is a second steel cable, and the second steel cable is connected between every two adjacent first steel cables along the height direction of the intercepting pile.

4. The pile net structure according to any one of claims 1 to 3, wherein the intercepting piles are arranged in a plurality of rows, and the height of the intercepting piles exposed to the ground is gradually increased along the flow direction of the material flow.

5. The pile net structure according to claim 4, characterized in that the intercepting piles of minimum height exposed to the ground are reference intercepting piles of height exposed to the ground less than or equal to 0.5 times the diameter of the largest stones in the flow of material.

6. The pile net structure according to any one of claims 1 to 3, wherein the intercepting piles are arranged in a plurality of rows, each row is provided with at least one intercepting pile, and the steel cable is connected between two adjacent intercepting piles in each row; the steel cable and the intercepting piles are enclosed into first meshes, and the pore diameter of the first meshes is gradually reduced along the flowing direction of the material flow.

7. The piling structure of claim 6 wherein said plurality of said steel cables are enclosed as second mesh openings, said second mesh openings having decreasing pore sizes in the direction of flow of said material flow.

8. The pile net structure according to any one of claims 1 to 3, wherein the shape of the intercepting pile groups is a predetermined shape, the outer boundary of the predetermined shape comprises a large end boundary, a small end boundary and a side boundary, and the side boundary is located between the large end boundary and the small end boundary; when the material flow is about to flow through the intercepting pile group, the small end boundary is positioned between the large end boundary and the material flow; the distance between the position of the intercepting pile on the side boundary and the corresponding flow channel side wall is gradually reduced along the flow direction of the material flow.

9. The pile net structure according to any one of claims 1 to 3, wherein the material flow is a debris flow or a stone block.

10. The pile net structure according to any one of claims 1 to 3, wherein the distance between two adjacent intercepting piles is less than or equal to 1.5 times the diameter of the largest stone in the material flow in the transverse direction of the flow channel.

11. The pile net structure according to any one of claims 1 to 3, further comprising a buffer pile group located at the upstream end of the intercepting pile group, wherein the buffer pile group comprises a plurality of buffer piles, each buffer pile is partially located in a stable stratum at the bottom of a flow channel of material flow, and the distance between two adjacent buffer piles is configured to enable the largest stones in the material flow to pass through between two adjacent buffer piles.