CN219621822U - Reinforced retaining wall and crushing platform - Google Patents

Abstract

The utility model discloses a reinforced retaining wall and a crushing platform. The reinforced retaining wall comprises a face wall, a backfill body and reinforced materials arranged in the backfill body, wherein the face wall is provided with a stabilizing wall between the backfill body and formed by combining a plurality of stabilizing units distributed along the vertical direction, the reinforced materials comprise a plurality of reinforced bodies distributed along the vertical direction, the reinforced bodies divide the backfill body into a plurality of horizontal backfill layers, the reinforced bodies are connected with the stabilizing units in one-to-one correspondence, the stabilizing walls are arranged between the face wall and the backfill body, the transverse pressure born by the face wall can be reduced, the stability can be kept when the top of the reinforced wall bears a larger load, the backfill body is divided into a plurality of backfill layers by the reinforced bodies, each backfill layer corresponds to one group of stabilizing units and is connected together through the reinforced bodies, and the integral stability of the retaining wall can be effectively improved so as to ensure that safety accidents such as collapse, landslide and the like are not easy to occur in the repeated rolling process of mine vehicles.

Description

Reinforced retaining wall and crushing platform

Technical Field

The utility model relates to the technical field of geotechnical engineering of crushing stations, in particular to a reinforced retaining wall. In addition, the utility model also relates to a crushing platform comprising the reinforced retaining wall.

Background

The open-air crushing station is widely applied to the fields of metal and nonmetal ore exploitation, gravel aggregate processing and the like, and plays a role in providing reasonable-size-fraction materials for subsequent operation. Most of the prior crushing platforms adopt schemes of crushing retaining walls by concrete because the raw ore bins of the crushing station are 12-20 m in height. However, in some areas, the infrastructure is relatively late, the concrete raw materials are relatively scarce, and the price is relatively high. If the traditional concrete retaining wall type crushing platform is adopted, the manufacturing cost is too high, meanwhile, the large-volume concrete pouring construction speed is low, the construction period of a mine can be seriously influenced, and therefore an alternative scheme needs to be considered. The prior art generally employs reinforced retaining walls for replacement.

The reinforced retaining wall generally comprises filling soil, lacing wires in the filling soil and a face wall, the manufacturing cost is low, the lateral pressure of the soil can be weakened into the soil body through the friction force between the filling soil and the lacing wires to play a role in stabilizing the soil body, but if the reinforced retaining wall is directly applied to a crushing platform, mine vehicles with large load need to be supplied to the crushing platform for ore removal in a reciprocating manner, the conventional retaining wall is difficult to keep stable for a long time under the vertical direction pressure with such large load and high frequency, and the risk of safety accidents such as collapse, landslide and the like of the retaining wall is high.

Disclosure of Invention

The utility model provides a reinforced retaining wall and a crushing platform, which are used for solving the technical problem of insufficient stability of the existing reinforced retaining wall under high-load and high-frequency vertical pressure.

According to one aspect of the utility model, the wall comprises a face wall, a backfill body and reinforcing bars arranged in the backfill body, wherein a stabilizing wall is arranged between the face wall and the backfill body and is formed by combining a plurality of stabilizing units distributed along the vertical direction, the reinforcing bars comprise a plurality of reinforcing bars distributed along the vertical direction, the reinforcing bars divide the backfill body into a plurality of backfill layers, and the reinforcing bars are connected with the stabilizing units in a one-to-one correspondence manner.

Through adopting above-mentioned scheme, the stable wall that sets up between the face wall and backfill body can play the effect of support to the backfill body on the one hand, reduce the pressure of backfill body to the face wall, on the other hand, the muscle separates the backfill body into thinner backfill layer, every backfill layer can be alone compacted and closely combine with the muscle body when being under construction, and the muscle body is connected with corresponding stable unit, make each part of retaining wall link together the wholeness better, when heavy load vehicle is traveling at the retaining wall top, the backfill can produce the pressure of horizontal direction to the stable wall, the muscle can provide the pulling force to the stable wall, in order to offset the pressure that the stable wall received, make the difficult emergence of stable wall side to roll, simultaneously, the gravity of vehicle is down on the muscle body, make the muscle body be difficult for sliding, can solve the current vertical direction pressure of adding the muscle retaining wall under heavy load, high frequency, the technical problem that stability is not enough.

Further, one end of the rib body surrounds along the circumference of the corresponding stabilizing unit, and the end head is positioned at the bottom of the corresponding stabilizing unit.

Through adopting above-mentioned scheme to the muscle body one end encircles the mode of stabilizing unit and connects the two, need not to adopt extra connecting device, and the construction is comparatively convenient, and the end of muscle body is in stabilizing unit bottom simultaneously, and the gravity effect of stabilizing unit and stabilizing unit top medium makes the muscle body be difficult for breaking away from stabilizing unit in the muscle body end, and the two is connected more stably.

Further, the stabilizing unit comprises a bag body and solid fillers arranged in the bag body, wherein gaps exist among the solid fillers to form a water filtering channel.

Through adopting above-mentioned scheme, when the rainwater is immersed in the backfill body, the rainwater can be through the drainage passageway discharge in the stable unit, avoids ponding influences retaining wall stability in the backfill soil.

Further, a water drain pipe is arranged on the bag body, one end of the water drain pipe penetrates through the face wall, the other end of the water drain pipe stretches into the bag body and is communicated with the water filtering channel, and at least one end of the water drain pipe is provided with a filtering piece.

Through adopting above-mentioned scheme, the water in the water discharge pipe can make the backfill can be more rapid get rid of, promotes drainage efficiency, can avoid simultaneously that silt in the backfill is discharged along with rivers through setting up the filter, prevents that silt from losing and causes the inside cavity that forms of backfill, guarantees the stability of retaining wall.

Further, a first impervious layer is arranged between the face wall and the stabilizing wall, one side of the first impervious layer extends downwards along the wall face of the stabilizing wall, and the other side of the first impervious layer penetrates through the stabilizing wall in the horizontal direction and stretches into the backfill layer.

Through adopting above-mentioned scheme, first barrier can prevent that ponding of broken platform bottom from oozing back to between stabilizing wall and the backfill layer, ensures the stability of whole reinforced retaining wall structure.

Further, the topmost layer of the backfill body is provided with double-layer ribs, a second impermeable layer is arranged between the double-layer ribs, and the periphery of the second impermeable layer reversely wraps the backfill layer downwards.

Through adopting above-mentioned scheme, the second barrier layer can reduce the rainwater and immerse the backfill in from the retaining wall top, ensures the stability of whole reinforced retaining wall structure.

Further, be provided with the stiffening rod in the backfill body, the stiffening rod includes horizontal part and the kink that is located horizontal part both ends, and horizontal part wears to locate between the adjacent stable unit and with muscle body fixed connection, and a kink is located in the face wall, and another kink is located in the backfill layer, and two kinks are buckled and the direction of buckling is opposite along vertical direction.

By adopting the scheme, the reinforcement rod can fixedly connect the rib body with the face wall, so that the risk of slippage of the rib body is further reduced; the two bending parts of the reinforcing rod are bent along the vertical direction and opposite in bending direction, so that the connection between adjacent layer structures can be enhanced, and the stability of the reinforced retaining wall structure is improved.

The utility model further provides a crushing platform which comprises the reinforced retaining wall, and the top of the reinforced retaining wall is provided with a car stopper.

Further, the car stopper comprises a car stopping part and a supporting part, wherein the car stopping part is positioned on one side, close to the face wall, of the supporting part, the top of the car stopping part is higher than the upper surface of the supporting part, a car facing surface is formed between the car stopping part and the supporting part, and the car facing surface and the upper surface of the supporting part form an obtuse angle.

Further, the supporting portion is covered with a graded broken stone layer, and the thickness of the graded broken stone layer is smaller than the vertical maximum height of the vehicle facing surface.

The utility model has the following beneficial effects:

1. the muscle separates the backfill body into thinner backfill layer, every backfill layer can be alone compacted and with muscle body close combination when the construction, and the muscle body is connected with corresponding stable unit, make each part of retaining wall link together the wholeness better, when heavy-duty vehicle was traveling at the retaining wall top, the backfill can produce the pressure of horizontal direction to the stabilizing wall, the muscle can provide the pulling force to the stabilizing wall, in order to offset the pressure that the stabilizing wall received, make the stabilizing wall be difficult for taking place to roll, meanwhile, the gravity of vehicle acts on down on the muscle body, make the muscle body be difficult for sliding, can effectively promote the holistic stability of retaining wall, in order to guarantee to collapse, landslide etc. security accident in the in-process that mine vehicle rolls repeatedly.

2. Through setting up first barrier layer and second barrier layer, the rainwater receives the separation effect of first barrier layer and second barrier layer, and can not get into back filling layer and stabilizing wall for between the backfill layer and between back filling layer and the stabilizing wall, and then improved the skid resistance and the stability between layer and the layer, thereby ensured the structural stability of whole reinforced retaining wall.

In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a sectional view of a reinforced retaining wall according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of a wall surface treatment of a reinforced retaining wall type crushing platform according to a preferred embodiment of the present utility model;

fig. 3 is a top view of a reinforced retaining wall type crushing platform according to a preferred embodiment of the present utility model.

Legend description:

1. a face wall; 2. a stabilizing unit; 3. a backfill layer; 4. a rib body; 5. a substrate; 6. a cushion layer; 7. a drain pipe; 8. a first barrier layer; 9. a second barrier layer; 10. a reinforcing rod; 11. a vehicle stopper; 12. a vehicle blocking part; 13. a support part; 14. a leveling layer; 15. grading the crushed stone layer; 16. coarsely crushing a workshop; 17. and (5) a crushing platform.

Detailed Description

Embodiments of the utility model are described in detail below with reference to the attached drawing figures, but the utility model can be practiced in a number of different ways, as defined and covered below.

Fig. 1 is a sectional view of a reinforced retaining wall according to a preferred embodiment of the present utility model; FIG. 2 is a schematic view of a wall surface treatment of a reinforced retaining wall type crushing platform according to a preferred embodiment of the present utility model; fig. 3 is a top view of a reinforced retaining wall type crushing platform according to a preferred embodiment of the present utility model.

As shown in fig. 1, the reinforced retaining wall of this embodiment includes a face wall 1, a backfill body and reinforced materials disposed in the backfill body, a stabilizing wall is disposed between the face wall 1 and the backfill body, the stabilizing wall is formed by combining a plurality of stabilizing units 2 distributed along a vertical direction, the reinforced materials include a plurality of reinforced materials 4 distributed along the vertical direction, the reinforced materials divide the backfill body into a plurality of horizontal backfill layers 3, and the reinforced materials 4 are connected with the stabilizing units 2 in a one-to-one correspondence. According to the reinforced retaining wall, the stabilizing wall is arranged between the face wall 1 and the backfill body, so that the transverse pressure borne by the face wall 1 can be reduced, stability can be kept when the top of the reinforced retaining wall bears a large load, meanwhile, the backfill body is divided into the plurality of backfill layers 3 by the rib body 4, each backfill layer 3 corresponds to one group of stabilizing units 2 and is connected together through the rib body 4, the overall stability of the retaining wall can be effectively improved, and safety accidents such as collapse and landslide are not easy to occur in the repeated rolling process of mine vehicles.

Optionally, the face wall 1 and the stabilizing wall are all arranged vertically, and can also be arranged in a slope according to engineering design requirements. Optionally, a substrate 5 and a cushion layer 6 are further arranged at the bottoms of the face wall 1 and the backfill body, the bearing capacity requirement of the substrate 5 is more than or equal to 450kPa, and when the bearing capacity reaches no requirement, the substrate 5 is treated in the following treatment mode: the method comprises the steps of replacing and filling the base with crushed stone, wherein the saturated uniaxial compressive strength of the crushed stone is not less than 35Mpa, the maximum grain size is not more than 300mm, and layering and rolling according to the thickness of 400 mm. The bedding 6 is a 300mm thick C20 concrete bedding 6. The face wall 1 is a C30 reinforced concrete panel. The backfill layer 3 adopts the abandoned gravel soil layer formed by mining stripping, the materials are conveniently obtained and transported, the construction investment cost of the crushing platform is remarkably saved, and the construction period is also saved. The comprehensive internal friction angle of the backfill layer is more than or equal to 35 degrees, the diameter of the crushed stone sheet is not more than 150mm, the particle size is more than or equal to 60mm, the content is not more than 30%, and the compactness is more than or equal to 95%.

As shown in fig. 2, in the present embodiment, one end of the rib 4 is circumferentially surrounded by the corresponding stabilizing unit, and the tip is located at the bottom of the corresponding stabilizing unit 2. The mode that encircles stable unit 2 through muscle body 4 fixes muscle body 4, need not to use steel wire, ribbon or other extra devices to fix, and the construction is comparatively convenient, can compress tightly muscle body 4 through stable unit 2, makes muscle body 4 be difficult for producing the slip, promotes the stability of muscle body 4. Alternatively, the rib 4 may surround the stabilizing unit 2 for one or several weeks.

Optionally, the rib body 4 is a bidirectional steel-plastic grid, and is manufactured by adopting an integral molding process, the longitudinal resistance strength is more than or equal to 100kN/m, the transverse resistance strength is more than or equal to 50kN/m, the separation force requirement of the reinforced strip nodes is more than 500N, and the bidirectional steel-plastic grid is adopted, so that the transverse and longitudinal ultimate tensile strength is larger, and meanwhile, certain flexibility is realized, so that the stable unit 2 can be ensured to be surrounded. The bearing capacity of the ore discharging platform can be greatly enhanced, the lateral displacement of the backfill structure is reduced, and the stability of the ore discharging platform is improved. Alternatively, the spacing between layers of the rib 4 is 300mm, and the stress direction (perpendicular to the wall 1) of the rib 4 is not allowed to be overlapped, and the rib 4 is manufactured by fixed-length processing.

As shown in fig. 2, in the present embodiment, the stabilizing unit 2 includes a bag body and solid fillers placed in the bag body with gaps therebetween to form drainage channels. After the rainwater is immersed into the retaining wall, the rainwater can flow out through gaps among the solid fillers, so that the rainwater cannot be accumulated. Optionally, the solid filler is crushed stone, and is taken in situ in a mine site, and can be waste concrete blocks or building blocks, so that the purpose of reducing the use of commodity concrete and the cost is achieved.

As shown in fig. 2, in this embodiment, a water drain pipe 7 is disposed on the bag body, one end of the water drain pipe 7 passes through the face wall 1, the other end of the water drain pipe extends into the bag body and is communicated with the water filtering channel, at least one end of the water drain pipe 7 is provided with a filtering member, the water drain pipe 7 can drain water in the bag body out of the retaining wall, overall stability reduction caused by water accumulation in the retaining wall is avoided, and the filtering member can prevent sediment loss. Optionally, a plurality of water drain pipes 7 are arranged on the face wall 1 in a plum blossom shape, wherein the transverse spacing is 2.4m, and the vertical spacing is 1.2m. Alternatively, the drain pipe 7 is a PVC pipe with the diameter of 50mm, which is easy to obtain and has a longer service life. Optionally, the two ends of the drain pipe 7 are both provided with filter elements, or the filter elements are only arranged at one end of the drain pipe 7, which is determined according to actual construction conditions. Optionally, the filtering piece adopts a non-woven fabric layer with the concentration of 200 g/square meter, and can also adopt a filter screen, a filter cotton layer and the like.

As shown in fig. 1, in this embodiment, a first impermeable layer 8 is disposed between the face wall 1 and the stabilizing wall, one end of the first impermeable layer 8 extends along the stabilizing wall, and the other end extends into the backfill layer 3 through the stabilizing wall in the horizontal direction. The first impervious layer 8 can prevent the accumulated water at the bottom of the crushing platform from reversely seeping into the retaining wall. The optional first barrier layer 8 is located 0.5m above the crushing station +0.00mm plane, 1m each along the vertical stabilizing wall and the horizontal backfill layer 3, and is disposed along the full length of the face wall 1.

In this embodiment, as shown in fig. 1, the topmost layer of the backfill body is provided with double-layer ribs 4, a second impermeable layer 9 is arranged between the double-layer ribs 4, and the periphery of the second impermeable layer 9 is reversely wrapped back to the backfill layer 3. The second barrier layer 9 can reduce the infiltration of rainwater into the retaining wall from the top thereof. Optionally, the backfill layer 3 is fully paved, and the periphery is downwards wrapped for 1m. Optionally, the first impermeable layer 8 and the second impermeable layer 9 are both in a mode of overlapping two geotextiles and one geomembrane, the geotextile is a non-woven fabric with a thickness of 200 g/square meter, and the thickness of the geomembrane is 0.2mm.

As shown in fig. 2, in this embodiment, a reinforcing rod 10 is disposed in the backfill body, the reinforcing rod 10 includes a horizontal portion and bending portions located at two ends of the horizontal portion, the horizontal portion is disposed between adjacent stabilizing units 2 in a penetrating manner and fixedly connected with the rib body 4, one bending portion is located in the face wall 1, the other bending portion is located in the backfill layer 3, and the two bending portions are bent in a vertical direction and opposite in bending direction. The reinforcement rod 10 can be arranged to fixedly connect the rib 4 with the face wall 1, so that the overall stability of the retaining wall is further enhanced. Optionally, the reinforcing rod 10 is the reinforcing bar, and the reinforcing bar is located the one end of face wall 1 and upwards bends, and the reinforcing bar is located the one end of backfill layer 3 and downwards bends, on the one hand can fixed connection face wall 1 and muscle body 4, and the other party also can compress tightly muscle body 4 on backfill layer 3, further increases the stability of muscle body 4. Optionally, each 4 backfill layers 3 are reinforced by a steel bar, one end of the steel bar is inserted into the backfill body, and the other end of the steel bar is poured into the face wall 1, and although the more the steel bars, the stronger the stability, but considering the cost factor, the four backfill layers 3 are more suitable for the steel bar spacing.

As shown in fig. 3, in the present embodiment, there is also provided a crushing platform including the above-described reinforced retaining wall, the top of which is provided with a car stopper 11. Optionally, a 100mm thick C20 concrete screed 14 is also provided between the car stop 11 and the reinforced retaining wall.

As shown in fig. 3, in the present embodiment, the vehicle stopper 11 includes a vehicle stopping portion 12 and a supporting portion 13, the vehicle stopping portion 12 is located at one end of the supporting portion 13 near the face wall 1, the top of the vehicle stopping portion 12 is higher than the supporting portion 13 to form a vehicle facing surface, and the vehicle facing surface forms an obtuse angle with the top surface of the supporting portion 13. The car stopping portion 12 can play a role in blocking the unloading car, and the supporting portion 13 is used for fixing the car stopping portion 12 to prevent the car stopping portion 12 from moving under the collision of the tires of the car. Optionally, the car stopper 11 is integrally cast of C30 reinforced concrete. Optionally, a certain amount of steel fibers distributed in a random direction are doped in the car stopper 11, and the volume ratio of the steel fibers is about 1%. Optionally, the top and the vehicle facing surface of the car stopper 11 are pre-embedded with positioning steel plates, the positioning steel plates are fixedly welded with wear-resistant steel plates, the wear-resistant steel plates can be replaced after being worn, and the wear-resistant steel plates are 40mm thick high manganese steel.

The optional support portion 13 is covered with a graded crushed stone layer 15, and the graded crushed stone layer 15 has a thickness smaller than the height of the vehicle facing surface. Providing the graded stone layer 15 can reduce the wear of the supporting portion 13 while limiting the maximum height of the graded stone layer 15 so as to avoid the graded stone layer from completely covering the vehicle facing surface of the vehicle stopper 11, resulting in failure of the vehicle stopper 11.

As shown in fig. 3, in this embodiment, alternatively, the crushing platform 17 includes two ore discharging openings with a certain included angle, the coarse crushing workshop 16 is located between the two ore discharging openings, so that two mining vehicles can be required to discharge ore simultaneously, so as to improve ore discharging efficiency, the outer vertical surface of the crushing platform 17 is vertically arranged, and the overall height is determined by the height of the corresponding crushing station. The included angle of the two ore discharging openings is 120 degrees, so that when the two ore discharging openings simultaneously discharge ore, the operation route of the mine car has larger interval and is not interfered with each other, and meanwhile, the ores discharged by the two ore discharging openings are concentrated, so that the crushing workshop is convenient to work.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A reinforced retaining wall comprises a face wall (1), a backfill body and reinforced bars arranged in the backfill body, and is characterized in that,

a stabilizing wall is arranged between the face wall (1) and the backfill body, the stabilizing wall comprises a plurality of stabilizing units (2) distributed along the vertical direction,

the reinforcement comprises a plurality of reinforcement bodies (4) distributed along the vertical direction, the reinforcement bodies (4) divide the backfill body into a plurality of backfill layers (3),

the rib bodies (4) are connected with the stabilizing units (2) in a one-to-one correspondence mode.

2. The reinforced retaining wall of claim 1 wherein,

one end of the rib body (4) surrounds along the circumference of the corresponding stabilizing unit (2), and the end head is positioned at the bottom of the corresponding stabilizing unit (2).

3. The reinforced retaining wall of claim 2 wherein,

the stabilizing unit (2) comprises a bag body and solid fillers arranged in the bag body, wherein gaps exist among the solid fillers to form a water filtering channel.

4. The reinforced retaining wall of claim 3 wherein,

the water draining pipe (7) is arranged on the bag body, one end of the water draining pipe (7) penetrates through the face wall (1), the other end of the water draining pipe extends into the bag body and is communicated with the water filtering channel, and at least one end of the water draining pipe (7) is provided with a filtering piece.

5. The reinforced retaining wall of claim 1 wherein,

a first impermeable layer (8) is arranged between the face wall (1) and the stabilizing wall, one side of the first impermeable layer (8) downwards extends along the surface of the stabilizing wall, and the other side of the first impermeable layer penetrates through the stabilizing wall in the horizontal direction and stretches into the backfill layer (3).

6. The reinforced retaining wall of claim 1 wherein,

the top of backfill body is provided with double-deck muscle body (4), be provided with second barrier layer (9) between double-deck muscle body (4), second barrier layer (9) all around is down to turn over at least one deck backfill layer (3).

7. The reinforced retaining wall of any of claims 1-6 wherein,

the backfill body is internally provided with a reinforcing rod (10), the reinforcing rod (10) comprises a horizontal part and bending parts positioned at two ends of the horizontal part, the horizontal part is penetrated between adjacent stabilizing units (2) and fixedly connected with the rib body (4), one bending part is positioned in the face wall (1), the other bending part is positioned in the backfill layer (3), and the two bending parts are bent along the vertical direction and have opposite bending directions.

8. A crushing platform, characterized by comprising a reinforced retaining wall according to any one of claims 1-7, the top of which is provided with a car stop (11).

9. The crushing platform of claim 8, wherein the crushing platform comprises a crushing drum,

the car stopper (11) comprises a car stopping part (12) and a supporting part (13), wherein the car stopping part (12) is positioned on one side, close to the face wall (1), of the supporting part (13), the top of the car stopping part (12) is higher than the upper surface of the supporting part (13) and forms a car facing surface between the car stopping part (12) and the supporting part (13), and the car facing surface and the upper surface of the supporting part (13) form an obtuse angle.

10. The crushing platform of claim 9, wherein the crushing platform comprises a crushing drum,

the supporting part (13) is covered with a graded broken stone layer (15), and the thickness of the graded broken stone layer (15) is smaller than the vertical maximum height of the vehicle facing surface.