CN217266993U

CN217266993U - Debris flow retaining wall

Info

Publication number: CN217266993U
Application number: CN202121519722.XU
Authority: CN
Inventors: 柳金峰; 芦明; 杨华铨; 张文涛
Original assignee: Institute of Mountain Hazards and Environment IMHE of CAS
Current assignee: Institute of Mountain Hazards and Environment IMHE of CAS
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-08-23
Anticipated expiration: 2031-07-05

Abstract

The utility model discloses a mud-rock flow barricade. The retaining wall has disadvantages to the prior two types of debris flow retaining walls, the utility model provides an use the debris flow retaining wall of binge check gabion as the basic structure. The debris flow retaining wall is of a step-shaped structure formed by at least two layers of guest-lattice gabions, each layer of guest-lattice gabions are connected through fasteners, the step surface of the step-shaped structure is a back surface, and the vertical surface of the back side of the step surface is a water-facing surface; the Binge gabion is characterized in that gravels and/or pebbles are filled in a Binge gabion net cage. The optimized Bingge gabion is formed by transversely splicing T-shaped Bingge gabion monomers along a debris flow retaining wall, and L-shaped monomers can be additionally arranged at two ends of the optimized Bingge gabion. Reinforcing piles, preferably cross reinforcing piles, are arranged among the binge gabion layers. The product has better impact resistance and deformation tolerance; better high ductility. The ecological disturbance of the product structure and the construction is small, and the product can be quickly spliced to meet the requirement of short construction period. The stepped structure can increase the construction operation flexibility.

Description

Debris flow retaining wall

Technical Field

The utility model relates to a geological disasters prevention and cure are with structure body, especially relate to a barricade for mud-rock flow calamity, belong to geological disasters prevention and cure engineering technical field.

Background

The debris flow disaster is one of geological disaster types induced under the comprehensive influence of various environmental factors, is not only a single type of geological disaster, but also a derivative disaster form of various types of geological disasters, and has the characteristics of universality, dispersity and the like. The blocking measure is a main prevention and treatment measure in the geological disasters.

Debris flow is one of the most common types of geological disasters induced in mountainous terrain under the combined influence of multiple environmental factors. It is not only a single type of geological disaster, but also a derivative disaster form of certain types of geological disasters. In the prior art, the prevention and treatment measures of debris flow disasters mainly comprise a supporting project, a blocking project, a drainage project, a silt storage project and the like. The problem of blocking debris flow to prevent the fluid from overflowing randomly needs to be solved in both the blocking engineering and the silt storage engineering.

The debris flow retaining wall mainly comprises a traditional reinforced concrete gravity type structure and a Bingge gabion structure. The former resists the impact and soil pressure of debris flow by means of self structural strength and gravity, and the latter has light self structure and strong impact resistance. Both types of debris flow retaining walls have disadvantages. For gravity retaining walls: firstly, once the gravity type retaining wall is built, the height of the gravity type retaining wall cannot be lifted, and if a debris flow accumulation body silts through the retaining wall in the later period, the retaining wall loses the protection effect, so that emergency situations which cannot be responded to are possibly caused; and secondly, the gravity type retaining wall is of a reinforced concrete structure, and although the gravity type retaining wall can bear the impact load of debris flow due to the characteristic of large dead weight, the requirement on the deformation tolerance capability of foundation soil is high. The problem is contradictory with the soft soil quality of a silt stopping area of the debris flow, so that the gravity retaining wall is easy to crack and collapse under the deformation condition of foundation soil and loses the effect; thirdly, building the gravity retaining wall structure, transporting a large amount of building materials, digging a large building in a mountainous area, and disturbing the ecology of the mountainous area greatly. For the Bingge gabion retaining wall, the cuboid gabions with the same size are generally stacked into a common wall body shape, the interiors of the wall bodies are tightly attached but independent or connected only through common fasteners, the overall strength and toughness of the retaining wall are weakened, and the capability of the retaining wall body for resisting mud-rock flow impact is also reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mud-rock flow retaining wall with a Bingge gabion as a basic structure aiming at the defects of the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a mud-rock flow barricade which characterized in that: the step-shaped structure is a step-shaped structure formed by at least two layers of Bingge gabions, each layer of Bingge gabions are connected through fasteners, the step surface of the step-shaped structure is a water-back surface, and the vertical surface of the back side of the step surface is a water-facing surface; the Bingge gabion is formed by filling gravels and/or pebbles in a Bingge gabion net cage.

The design of the debris flow retaining wall adopts the appearance structure that the lower wall body is thicker and the upper wall body is thinner, so that the retaining wall and the debris flow motion characteristics of the retaining wall, which are more greatly influenced by the impact force of the lower part of the wall body than the impact force of the upper part of the wall body in use, are consistent. The appearance characteristics of the retaining wall with the wide lower part and the narrow upper part are realized by adopting the stepped structure, so that the impact resistance of the retaining wall can be improved, the consumption of building materials can be reduced to the maximum degree, and the flexibility of the construction process can be increased.

Under the preferable conditions, the debris flow retaining wall can be optimized as follows:

optimization of the binge gabion: furthermore, the Bingge gabion is formed by transversely splicing Bingge gabion monomers along the debris flow retaining wall, and the adjacent Bingge gabion monomers are connected through fasteners.

The optimization is to break the whole Bingge gabion into parts, and a whole wall body is spliced and built by a plurality of Bingge gabion monomers, so that the elasticity of the wall body is improved. When the wall body is impacted, the impact of debris flow fluid, particularly large stones, can be resisted by the friction between the stones in the wall body and the friction between the single binge gabion bodies in a friction and extrusion matching mode.

Furthermore, the single Bingge gabion is a T-shaped single body, and the T-shaped single bodies are transversely and alternately meshed along the debris flow retaining wall. Furthermore, L-shaped single bodies are arranged on the outer sides of the T-shaped single bodies at the two ends respectively, the L-shaped single bodies are meshed with the side faces of the T-shaped single bodies, and the two side faces of the debris flow retaining wall are planes.

The optimization designs the structural relationship among the single binge gabion bodies into staggered meshing realized by local convex-concave parts, and mutual biting friction among the binge gabion bodies is further enhanced, so that the shock resistance is improved. The structure has the more obvious technical advantages that the structure increases the toughness of the wall body by improving the tolerance of the wall body to deformation, and when foundation soil is unevenly settled or bears huge impact, even if large displacement occurs inside the wall body, the large displacement can be adjusted through local small displacement between stones inside the wall body, so that cracking, instability and collapse similar to those of a reinforced concrete structure are avoided. By adding the L-shaped monomers at the two ends, the two side surfaces of the retaining wall can be ensured to be planes, and the matching requirement of the two side structures in a specific space is met.

Optimizing the interlayer structure: furthermore, reinforcing piles are arranged between each layer of the Bingge gabion/Bingge gabion single body and the adjacent upper layer of the Bingge gabion/Bingge gabion single body, and the upper parts and the lower parts of the reinforcing piles are respectively embedded in the gravel and/or pebbles of the upper layer of the Bingge gabion/Bingge gabion single body and are tightly attached to the back water surface of the upper layer of the Bingge gabion/Bingge gabion single body.

A simple design of the reinforcing pile is a strip-shaped piece, and the embedding depth in the upper and lower layer Bingge gabion/Bingge gabion single bodies is the height of the upper and lower layer Bingge gabion/Bingge gabion single bodies respectively. Another optimized design of the reinforcing pile is a cross structure, wherein vertical arms are embedded in gravel and/or pebbles of the upper layer and the lower layer of the Bingge gabion/Bingge gabion monomer and are tightly attached to the back surface of the upper layer of the Bingge gabion/Bingge gabion monomer, and transverse arms are embedded in the lower layer of the Bingge gabion/Bingge gabion monomer. Under the optimized design, the cross arm is embedded in the lower layer Bingge gabion/Bingge gabion single body at the half-height position, and the cross arm is embedded in the Bingge gabion/Bingge gabion single body. The reinforcing piles can be angle steel pieces, and vertical arms of the reinforcing piles in the cross structure are opposite to the inner edges of the cross arms and are connected through fasteners.

Optimizing the whole debris flow retaining wall: further, the height of each layer of the binge gabion is gradually reduced from bottom to top. The optimization firstly can make full use of the motion property of the debris flow to reduce unnecessary building material use. And secondly, the heights of the layers which are sequentially reduced in an actual situation show a step shape, so that the construction of the silting-stopping retaining wall is more convenient, a scaffold does not need to be additionally erected, and the construction cost is reduced. Finally, the favorable space at the rear side of each layer of the gabion wall body of the stepped silt stopping retaining wall can be fully utilized to arrange the angle steel piles embedded at the lower part, so that the impact force borne by the upper layer of the gabion wall body can be transmitted to the additional extending part of the lower layer of the gabion wall body through the angle steel piles, and the integrity and the impact resistance of the silt stopping retaining wall are further enhanced.

Compared with the prior art, the invention has the beneficial effects that: the product makes the Bingge gabion type mud-rock flow barricade possess better mud-rock flow and keep off the performance through the improvement to the whole shape of mud-rock flow barricade, Bingge gabion structure, interlaminar structure, specifically includes better resistance to impact resistance, higher deformation tolerance degree to effectively balance the influence that the ground foundation soil differential settlement produced the barricade is whole. The product has better high ductility, can design different heights according to the soil property of the foundation, and can increase the layer height under the emergency condition to adapt to emergency rescue. The dead weight of the product is less than that of the gravity type retaining wall, so that too large foundation burial depth is not needed, large digging and filling are avoided, and ecological disturbance is small. The product is a reinforced bar stone structure, and the product can not be recycled after use and can not increase the burden of self-degradation of the environment. The product can improve the shock resistance of the retaining wall, simultaneously maximally reduce the consumption of building materials, and can be quickly spliced to meet the requirement of short construction period. The stepped structure can further increase the construction operation flexibility.

Drawings

FIG. 1 is a schematic view of the configuration of a debris flow retaining wall according to an embodiment.

FIG. 2 is a schematic side view of the configuration of a debris flow retaining wall.

FIG. 3 is a schematic view of a layer of a Bingge gabion structure (showing rectangular individual splice layers).

FIG. 4 is a schematic view of the retaining wall in accordance with the second embodiment.

FIG. 5 is a schematic view of a layer of a Bingge gabion structure (showing T-shaped L-shaped single spliced layers).

FIGS. 6a and 6b are schematic structural diagrams of T-type monomers and L-type monomers.

Fig. 7 is a cross-sectional structure schematic view of a debris flow retaining wall.

Fig. 8 is a schematic view of a cross-structured reinforcing pile.

The numerical designations in the drawings are respectively:

1 Bingge gabion 11 Bingge gabion single body 12T type single body 13L type single body 2 fastener

3 step surface 4 backside vertical surface 5 side surface 6 reinforcing pile 61 vertical arm 62 horizontal arm

Detailed Description

The preferred embodiments of the present invention will be further described with reference to the accompanying drawings.

Example one

As shown in fig. 1 to fig. 3, the mud-rock flow retaining wall of the present invention is processed.

FIG. 1 is a schematic view of the configuration of a debris flow retaining wall; fig. 2 is a schematic side view of the configuration of a debris flow retaining wall. The debris flow retaining wall is of a step-shaped structure formed by at least two layers of Bingge stone cages 1, the Bingge stone cages 1 of each layer are connected through fasteners 2, a step surface 3 of the step-shaped structure is a back water surface, and a back vertical surface 4 of the step surface 3 is a water facing surface; the Bingge gabion 1 is a Bingge gabion net cage filled with gravels and/or pebbles.

FIG. 3 is a schematic view of a layer of a Bingge gabion 1 (showing rectangular single spliced layers). The binge gabions 1 on certain binge gabions 1 layers are formed by transversely splicing binge gabion single bodies 11 along the debris flow retaining wall, and the adjacent binge gabion single bodies 11 are connected through fasteners 2.

Reinforcing piles 6 are arranged between each layer of the Bingge gabion 1/Bingge gabion single bodies 11 and the adjacent upper layer of the Bingge gabion 1/Bingge gabion single bodies 11, and the upper parts and the lower parts of the reinforcing piles 6 are respectively embedded in gravels and/or pebbles of the upper layer and the lower layer of the Bingge gabion 1/Bingge gabion single bodies 11 and are tightly attached to the back water surface of the upper layer of the Bingge gabion 1/Bingge gabion single bodies 11. The reinforcing piles 6 are strip-shaped pieces, and the embedding depth in the upper and lower layers of the Bingge gabion (1)/the Bingge gabion single body 11 is the height of the upper and lower layers of the Bingge gabion (1)/the Bingge gabion single body 11 respectively.

In the present embodiment, the fastening member 2 is bound with a binding wire.

Example two

As shown in fig. 4 to 8, the same parts as those in the first embodiment of the debris flow retaining wall of the present invention are processed in different ways.

FIG. 4 is a schematic view of the configuration of a debris flow retaining wall; fig. 5 is a schematic view of a layer of binge gabion 1. The Bingge gabion single bodies 11 are T-shaped single bodies 12, and the T-shaped single bodies 12 are transversely meshed in a staggered mode along the debris flow retaining wall. In order to match the space requirement of the retaining wall and improve the attractive appearance, the outer sides of the T-shaped single bodies 12 at the two ends are respectively provided with an L-shaped single body 13, the L-shaped single bodies 13 are meshed with the side faces of the T-shaped single bodies 12, and the side faces 5 of the two debris flow retaining walls are planes.

FIGS. 6a and 6b are schematic structural diagrams of T-type monomers and L-type monomers. In this embodiment, both the T-type monomer and the L-type monomer adopt a square symmetrical structure, the T-type monomer 12 has a transverse side length of 3d and a vertical side length of 2d, and the notches on both sides of the vertical side are squares with a side length of d. The side length of the L-shaped monomer 13 is 2d, and the notch is a square with the side length of d.

FIG. 7 is a cross-sectional view of a debris flow retaining wall; fig. 8 is a schematic view of the cross-shaped structural reinforcing piles 6. Reinforcing piles 6 are arranged between each layer of the Bingge gabion single bodies 11 and the adjacent upper layer of the Bingge gabion single bodies 11, and the upper parts and the lower parts of the reinforcing piles 6 are respectively embedded in gravels and/or pebbles of the upper layer of the Bingge gabion single bodies 11 and the lower layer of the Bingge gabion single bodies 11. The reinforcing piles 6 are of a cross structure, vertical arms 61 are embedded in gravels and/or pebbles of the upper-layer and lower-layer Bingge gabion single bodies 11 and are tightly attached to the back surface of the upper-layer Bingge gabion single body 11, and transverse arms 62 are embedded in the lower-layer Bingge gabion single bodies 11. The reinforcing piles 6 are angle steel members, and the vertical arms 61 are opposed to the inner edges of the lateral arms 62 and are connected by the fasteners 2.

In the present embodiment, the cross arm 62 is embedded in the lower layer of the single binge gabion body 11 at a half-height position, and the width of the cross arm 62 is 1/2 of the width of the position of the single binge gabion body 11. Specifically, for example: the height H1 of the lower layer of the single binge gabion body 11, the height H2 of the upper layer of the single binge gabion body 11, the length H of the reinforcing pile vertical arm 61 is H1+ H2, and the position of the cross arm 62 is at the position H1/2 of the lower portion of the vertical arm 61. The fastening piece 2 is bound by binding wires.

Claims

1. Mud-rock flow barricade, its characterized in that: the step-shaped structure is a step-shaped structure formed by at least two layers of Bingge gabions (1), each layer of Bingge gabion (1) is connected through a fastener (2), a step surface (3) of the step-shaped structure is a water-back surface, and a back-side vertical surface (4) of the step surface (3) is a water-facing surface; the Bingge gabion (1) is formed by filling gravels and/or pebbles in a Bingge gabion net cage.

2. The debris flow retaining wall of claim 1, wherein: the Bingge gabion (1) is formed by transversely splicing Bingge gabion monomers (11) along a debris flow retaining wall, and the adjacent Bingge gabion monomers (11) are connected through fasteners (2).

3. The debris flow retaining wall of claim 2, wherein: the Bingge gabion single bodies (11) are T-shaped single bodies (12), and the T-shaped single bodies (12) are transversely meshed in a staggered mode along the debris flow retaining wall.

4. The debris flow retaining wall of claim 3, wherein: l-shaped monomers (13) are respectively arranged on the outer sides of the T-shaped monomers (12) at the two ends, the L-shaped monomers (13) are meshed with the side surfaces of the T-shaped monomers (12), and two side surfaces (5) of the debris flow retaining wall are planes.

5. The debris flow retaining wall according to any one of claims 1 to 4, wherein: reinforcing piles (6) are arranged between each layer of Bingge gabion (1)/Bingge gabion single body (11) and the adjacent upper layer of Bingge gabion (1)/Bingge gabion single body (11), and the upper parts and the lower parts of the reinforcing piles (6) are respectively embedded in gravels and/or pebbles of the upper layer and the lower layer of Bingge gabion (1)/Bingge gabion single body (11) and are tightly attached to the back water surface of the upper layer of Bingge gabion (1)/Bingge gabion single body (11).

6. The debris flow retaining wall of claim 5, wherein: the reinforcing piles (6) are strip-shaped pieces, and the embedding depth in the upper and lower layers of the Bingge gabion (1)/the Bingge gabion single body (11) is the height of the upper and lower layers of the Bingge gabion (1)/the Bingge gabion single body (11) respectively.

7. The debris flow retaining wall of claim 5, wherein: the reinforcing pile (6) is of a cross structure, the vertical arm (61) is embedded in gravel and/or pebbles of the upper layer and the lower layer of the Bingge gabion cage (1)/the Bingge gabion single body (11) and is tightly attached to the back water surface of the upper layer of the Bingge gabion cage (1)/the Bingge gabion single body (11), and the transverse arm (62) is embedded in the lower layer of the Bingge gabion cage (1)/the Bingge gabion single body (11).

8. The debris flow retaining wall of claim 7, wherein: the cross arm (62) is embedded in the lower layer of the Bingge gabion (1)/the Bingge gabion single body (11) at the half-height position, and the cross arm (62) is embedded in the Bingge gabion (1)/the Bingge gabion single body (11).

9. The debris flow retaining wall of claim 7, wherein: the reinforcing piles (6) are angle steel pieces, and the vertical arms (61) are opposite to the inner edges of the cross arms (62) and are connected through fasteners (2).

10. The debris flow retaining wall according to any one of claims 1, 2, 3, 4, 6, 7, 8 and 9, wherein: the height of each layer of the binge gabion (1) is gradually reduced from bottom to top, and the fastening pieces (2) are binding wires.