CN220058018U - Weathered soft rock cutting slope window type facing wall protection structure - Google Patents

Abstract

The utility model discloses a weathered soft rock cutting slope window type facing wall protection structure, and relates to the technical field of expressway construction. Comprises a window type facing wall body and a greening window body; the window type facing wall body is an inclined wall body, the back of the wall body is tightly covered on the surface of the side slope, and the bottom of the wall body is buried in the slope toe of the side slope; the window type facing wall body is also internally provided with a plurality of greening window bodies which are distributed vertically and horizontally in the window type facing wall body. The window type facing wall protection structure can effectively cover the surface of a slope body in a large area for a weathered soft rock cutting slope, particularly when the weathered soft rock cutting slope is seriously weathered and rock stratum is broken, so that the slope body is prevented from being washed by rainwater, the reduction of mechanical parameters of the weathered soft rock slope is weakened, and the stability of the weathered soft rock slope is ensured; and the greening window has attractive appearance, is internally ridged for grass planting, is green and environment-friendly and has strong ornamental value.

Description

Weathered soft rock cutting slope window type facing wall protection structure

Technical Field

The utility model relates to the technical field of expressway construction, in particular to a weather soft rock cutting slope window type facing wall protection structure.

Background

The protection form of the cut slope should be comprehensively determined according to engineering and hydrogeological conditions of a specific slope, slope height, local climate weather and construction process, and by combining slope characteristics such as rock-soil body structure, structural surface appearance, weathering degree, topography, natural slope stability and the like. The existing protection structure mainly comprises anchor rods/anchor cable frame beams, concrete retaining walls, arch frameworks, three-dimensional net spray seeding grass planting, active net, vegetation ecological protection and the like. The construction cost of the anchor rod/anchor cable frame beam protection is high, and the investment is large; the concrete retaining wall has no green machine, and is generally applicable to soil slopes with thicker soil layers and easy local collapse; the arch skeleton is combined with plant protection, the protection strength is limited, and the rain erosion resistance is relatively weak; the three-dimensional net is suitable for the road section with lower height of the side slope of common soil or strong weathered rock, and the common height is not more than 4m; the vegetation ecological protection is only suitable for the rock slope which is stable as a whole; if the rock mass is good in integrity and hard, the rock mass can be directly exposed or an active protection net can be hung.

Aiming at a weathered soft rock cutting slope, after soft rock is excavated, the surface layer of the soft rock cutting slope is easily weathered and crushed under the action of dry and wet circulation, so that the shallow instability of the slope is caused; the new section formed after the side slope is unstable is repeatedly weathered and unstable again under the action of rain wash and sun exposure, and the cycle is repeated, so that progressive shallow instability of the side slope from the outside to the inside is caused. In order to avoid the situation that soft rock cutting side slope is instable and falls off under the action of dry and wet circulation and wind effect of water spraying and sun drying, a layer of waterproof facing wall structure is arranged on the side slope surface, but the surface of the side slope is completely covered by the facing wall structure, no green machine exists on the facing wall, the construction concept of green environment protection is not met, and the water-proof facing wall structure does not have ornamental value (for example, the utility model patent with the publication number of CN211596801U discloses a waterproof facing wall structure which is a single wall body, does not have any green machine, does not meet the construction concept of green environment protection, and does not have ornamental value).

Therefore, it is important to develop a weathered soft rock cutting slope protection structure which not only ensures the safety and stability of the slope, but also is economical and environment-friendly.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present utility model is mainly directed to providing a novel protection structure for a weathered soft rock cutting slope window type facing wall, so as to solve the above-mentioned problems.

In order to achieve the above purpose, the utility model provides a weathered soft rock cutting slope window type facing wall protection structure, which comprises a window type facing wall and a greening window body; the window type facing wall body is an inclined wall body, the back of the wall body is tightly covered on the surface of the side slope, and the bottom of the wall body is buried in the slope toe of the side slope; the window type facing wall body is also internally provided with a plurality of greening window bodies which are distributed vertically and horizontally in the window type facing wall body.

Furthermore, the side of the back of the wall of the window type facing wall is also provided with a protruding ear wall, and the ear wall is matched with an ear wall groove on the surface of the side slope.

Further, the wall body comprises a water intercepting ditch and a movable platform, wherein the movable platform is positioned at the top of the wall body of the window type facing wall body, and the movable platform is stably connected with the top of the wall body; the intercepting ditch is arranged between the movable platform and the side slope surface.

Further, the side slope protection wall comprises a breaking table and a side ditch, wherein the breaking table is connected with the wall surface of the window type side protection wall and is positioned at the slope foot of the side slope, and the side ditch is further arranged on one side of the breaking table away from the side slope.

Further, the window type facing wall is also internally provided with a plurality of rows of water discharge holes, the water discharge holes are arranged in a staggered way up and down, and the outlet height of the lowest water discharge hole is higher than the horizontal height of the breaking table and the side ditch.

Further, an expansion joint is arranged between the adjacent window type facing walls.

Further, the greening window body structure is diamond-shaped, and a plurality of hollow hexagonal blocks are arranged in the greening window body.

Further, the material of the window type facing wall body is concrete.

The utility model has the following beneficial effects:

the window type facing wall for the weathered soft rock cutting slope provided by the utility model can effectively cover the surface of the slope in a large area, prevent rain from flushing the slope, weaken the reduction of mechanical parameters of the soft rock to the maximum extent and effectively ensure the stability of the weathered soft rock slope for the weathered soft rock cutting slope, especially when the weathered soft rock is seriously broken and the rock stratum is broken;

the greening window body is diamond-shaped in structure and attractive in appearance, and a plurality of hollow hexagonal blocks are arranged in the greening window body and used for hilling grass planting, so that the greening window is environment-friendly and high in ornamental value;

the arranged earwall can greatly improve the biting force between the window type facing wall body and the slope body, and the window type facing wall body and the slope body are combined into a whole more effectively;

the water drainage holes can effectively drain accumulated water behind the wall, so that the erosion hazard of rainwater to the weathered soft rock side slope is reduced;

the utility model has the advantages of low material price, simple structure, convenient construction and the like.

Drawings

FIG. 1 is a schematic cross-sectional view of a weathered soft rock cutting slope window facing wall protection structure according to the present utility model.

FIG. 2 is a schematic cross-sectional view of a 10m height window-type facing wall protection structure according to the present utility model.

FIG. 3 is a schematic cross-sectional view of the window-type facing wall protection structure of the present utility model at a height of 8 m.

Fig. 4 is a schematic elevation view of the window type facing wall protection structure of the present utility model with a height of 10 m.

Fig. 5 is a schematic elevation view of the window type facing wall protection structure of the present utility model with a height of 8 m.

Fig. 6 is a construction flow chart of the wind-break soft rock cutting slope window type facing wall protection structure of the utility model.

In the figure: 1-a window type facing wall; 2-intercepting ditches; 3-a movable platform; 4-top of wall; 5-the bottom of the wall body; 6-wall surface; 7-wall backs; 8-an ear wall; 9-a water discharge hole; 10-C20 pieces of stone concrete; 11-expansion joints; 12-breaking-off table; 13-side ditches; 14-greening window bodies; 15-hollow hexagonal blocks; 16-planting grass.

Detailed Description

In order to achieve the above objects and effects, the present utility model adopts the technical means and structure, and the features and functions of the preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings.

Example 1

As shown in fig. 1-6, the utility model provides a window type facing wall protection structure for a weathered soft rock cut slope, which is applicable to the weathered soft rock cut slope with a slope rate of 1:0.75-1:1.5, and the height of the normal cut slope is less than or equal to 20m, and comprises a window type facing wall 1 and a greening window 14; the window type facing wall body 1 is an inclined wall body, and the wall back 7 of the window type facing wall body is tightly covered on the surface of a side slope, so that the side slope is prevented from being washed by rain water, and the stability of a weathered soft rock side slope is effectively ensured; the bottom 5 of the wall body is buried into the slope toe, so that the integral structure of the window type facing wall body is reinforced, and the stability of the wall body is improved; the window type facing wall body 1 is internally provided with a plurality of greening window bodies 14, the plurality of greening window bodies 14 are uniformly distributed in the window type facing wall body 1 in a longitudinal and transverse mode, grass planting is carried out in the greening window bodies 14, and the window type facing wall body has an excellent ornamental value while achieving green and environment-friendly effects.

Example 2

The embodiment is further provided with an ear wall structure on the basis of the embodiment 1, one side of the wall back 7 of the window type facing wall body 1 is further provided with a plurality of protruding ear walls 8, and the ear walls 8 are matched with ear wall grooves on the surface of the side slope and are tightly covered on the surface of the side slope together with the wall back 7; the added earwall 8 structure can be meshed with the earwall groove on the side slope surface, so that the biting force between the window type facing wall and the weathered soft rock road pad side slope is greatly improved, the window type facing wall and the weathered soft rock road pad side slope are combined into a whole more effectively, and the contact area between the window type facing wall and the side slope surface is increased by the earwall 8 structure, so that the window type facing wall and the side slope surface are combined more tightly.

Example 3

The embodiment is further provided with a water interception ditch and a movable platform on the basis of the embodiment 1, wherein the movable platform 3 is positioned at the top 4 of the wall body of the window type facing wall body 1, and the movable platform 3 is stably connected with the top 4 of the wall body so as to perform construction and greening work; the intercepting ditch 2 is arranged between the movable platform 3 and the side slope surface, the ditch bottom is 30cm wide, and the ditch side is 30cm high, and is used for intercepting water flow above the top 4 of the wall body and preventing the water flow from flowing to the window type facing wall body 1.

Example 4

The embodiment is further provided with a breaking table and a side ditch on the basis of the embodiment 1, wherein the breaking table 12 is connected with the wall surface 6 of the window type facing wall body 1 and is positioned at the slope foot of the side slope, so that the buffer distance when broken objects fall is increased, and the broken objects can be prevented from falling into the side ditch or the middle road; the side of the breaking table 12 far away from the side slope is also provided with a side ditch 13, and meanwhile, the side ditch 13 is also connected with two sides of a road, so that road surface water and slope water on the window type facing wall body 1 can be rapidly collected and introduced into a drainage channel for drainage.

Example 5

The embodiment is further provided with a plurality of rows of water draining holes 9 on the basis of the embodiment 4, the window type facing wall body 1 is further internally provided with a plurality of rows of water draining holes 9, the water draining holes 9 are made of PVC pipe materials, the aperture is 5-10cm, the distance is 2-3m, the inlet end of each water draining hole is wrapped by anti-filtering geotechnical cloth, the plurality of rows of water draining holes 9 are arranged in a staggered mode up and down, when a water seepage part exists on a side slope, proper encryption is needed, and the outlet height of the lowest water draining hole 9 is higher than the horizontal height of the breaking table 12 and the side ditch 13 by more than 30cm.

Example 6

The expansion joint is additionally arranged on the basis of the embodiment 1, the expansion joint 11 is further arranged between the adjacent window type facing wall bodies 1, the width of the expansion joint is 2cm-3cm, the two side walls in the expansion joint are flush and straight, and the expansion joint is filled with waterproof materials such as asphalt.

Example 7

The specific structural arrangement of the greening window is limited on the basis of the embodiment 1, the structure of the greening window 14 is diamond-shaped, the size is 3.5mx2.3m, a plurality of hollow six-edge blocks 15 are arranged in the greening window 14, the hollow six-edge blocks 15 are closely arranged in the greening window 14, and the inside of the hollow six-edge blocks 15 is hilled and planted with grass planting 16.

Example 8

The preferred manufacturing material is provided on the basis of the embodiment 1, the material of the window type facing wall body 1 is C20 rubble concrete 10, the concrete label is C20, and a proper amount of rubble can be added in advance before concrete pouring, the compressive strength value of the rubble is more than or equal to 30MPa, the softening coefficient is more than or equal to 0.75, and the volume of the wall body occupied by the rubble is about 25% of the total volume of the wall body.

Example 9

Referring to fig. 2 and 4, in this embodiment, the wall height of one of the window type facing walls 1 is 10m, two ear walls 8 are disposed on one side of the back 7 of the wall in a vertically distributed manner, the height of the ear wall 8 at the lower position is 200cm, the height of the ear wall 8 at the upper position is 600cm, the wall width and the wall height of the ear wall 8 are 100cm, the width of the top 4 of the wall is 40cm, the width of the chipping table 12 is 100cm, the greening window 14 is 350cm×230cm, the greening window 14 is divided into 3 columns along the horizontal direction, and the distance between adjacent greening windows 14 is 80cm.

Example 10

Referring to fig. 3 and 5, in this embodiment, in the other specific size setting of embodiment 9, the size units are all in cm, referring to fig. 3 and 5, in this embodiment, the wall height of one window type facing wall 1 is 8m, two ear walls 8 are distributed up and down on one side of the wall back 7, the setting height of the ear wall 8 at the lower position is 150cm, the setting height of the ear wall 8 at the upper position is 450cm, the wall width and the wall height of the ear wall 8 are both 100cm, the width of the wall top 4 is 40cm, the width of the breaking table 12 is 100cm, the greening window 14 is 350cm×230cm, the greening window 14 is divided into 2 columns along the horizontal direction, and the distance between adjacent greening windows 14 is 130cm.

Example 11

As shown in fig. 6, in this embodiment, the weathered soft rock cutting slope window type facing wall protection structure according to the present utility model may be constructed by referring to the following steps:

firstly, leveling a site, measuring and paying off, after workers are in place, construction materials and construction equipment are ready, excavating a weathered soft rock cutting slope and leveling a slope according to a design slope rate, and simultaneously, excavating a groove corresponding to an earwall part. General slate and sandy slate slopes, the slope rate of a strong weathering layer is 1:1-1:1.5, the slope rate of a medium weathering layer is 1:0.75-1:1.25, the local part is determined according to the occurrence of the unfavorable structural surface of soft rock, and the slope rate 1:n1 of the wall surface of the window type facing wall protection structure can be as follows: 1:0.75, 1:1, 1:1.25, 1:1.5, and correspondingly the slope ratio of the back of the wall 1:n2 is: 1:0.70, 1:0.95, 1:1.2, 1:1.45;

after the side slope is excavated, the deviation between the slope surface and the designed slope surface should be checked in time, and if the slope surface is overexcavated or underexcavated, the slope surface should be manually trimmed. Meanwhile, the slope excavation process should be excavated step by step and protected step by step, and protection construction should be timely carried out after the slope excavation is completed, and the slope should not be exposed for a long time. When the side slope is longer, a construction mode of jumping groove excavation and construction of the facing wall is adopted;

and excavating a retaining wall foundation trench, wherein the foundation is solid and linear and smooth. After a foundation trench is excavated, firstly, geological conditions are verified in time, and when the bearing capacity of the foundation does not meet the requirement, broken stone is adopted to replace and fill the foundation;

the cutting side slope should be constructed in a grading manner along the height direction, generally the cutting side slope is constructed by taking 8m or 10m as a first stage, steps are arranged at the interface of each stratum as far as possible, and a movable platform is arranged between each stage so as to facilitate construction and greening. Meanwhile, the side slope is divided into a plurality of sections along the length direction of the side slope, and the facing wall construction is carried out in sections. After the templates are supported, the stones are put in to ensure that the stones are uniformly distributed, the volume of the stones is about 25 percent of that of the wall, the stones are medium hard rocks (the compressive strength value is more than or equal to 30 MPa) which are not weathered and have no cracks, the surfaces of the stones are clean, and the block diameter is not more than 20cm. When the surface of the stone is provided with sludge, the stone should be washed clean with water in advance;

an expansion joint is reserved between each section of window type facing wall, and when the geology of the substrate has a change, a settlement joint is arranged, wherein the expansion joint and the settlement joint can be combined;

the back of the wall of the window type facing wall body is closely attached to the slope surface, and the embedded base part of the facing wall body and the wall body are poured simultaneously. In the pouring process, pumping concrete can be used for pouring in order to accelerate the construction efficiency, and the concrete label adopts C20;

after the facing wall is poured, covering, sprinkling and curing are carried out in time, and the curing time is not less than 7 days;

the movable platform needs to be hardened by concrete;

the water intercepting ditch is cast in situ by adopting C20 concrete, an expansion joint is arranged at intervals of 10m-15m in the same way, and waterproof materials such as asphalt and the like are filled in the joint;

after the concrete strength of the window type facing wall reaches the design strength, hollow hexagonal blocks are filled in the diamond-shaped window bodies, and the interior of the diamond-shaped window bodies is earthed up for grass planting and greening;

in order to facilitate highway maintenance, stepped steps and handrails can be arranged at proper positions of the facing wall body if necessary.

The foregoing description is only illustrative of the preferred embodiment, and is not intended to limit the scope of the utility model in any way.

Claims (5)

1. A weathering soft rock cutting side slope window formula facing wall protective structure, its characterized in that: comprises a window type facing wall body (1) and a greening window body (14); the window type facing wall body (1) is an inclined wall body, the wall back (7) of the window type facing wall body is tightly covered on the surface of a side slope, and the bottom (5) of the wall body is buried in the slope toe of the side slope; a plurality of greening window bodies (14) are further arranged in the window type facing wall body (1), and the greening window bodies (14) are uniformly distributed in the window type facing wall body (1) in a longitudinal and transverse mode;

the movable platform (3) is positioned at the top (4) of the wall body of the window type facing wall body (1), and the movable platform (3) is stably connected with the top (4) of the wall body; the intercepting ditch (2) is arranged between the movable platform (3) and the side slope surface;

an expansion joint (11) is arranged between the adjacent window type facing walls (1);

the greening window body (14) is diamond-shaped in structure, and a plurality of hollow hexagonal blocks (15) are arranged in the greening window body (14).

2. The weathered soft rock cutting slope window facing wall protection structure of claim 1, wherein: the wall back (7) side of the window type facing wall body (1) is also provided with a protruding earwall (8), and the earwall (8) is matched with an earwall groove on the side slope surface.

3. The weathered soft rock cutting slope window facing wall protection structure of claim 1, wherein: the novel window type facing wall is characterized by further comprising a breaking table (12) and a side ditch (13), wherein the breaking table (12) is connected with the wall surface (6) of the window type facing wall body (1) and is positioned at the slope toe of the side slope, and the side ditch (13) is further arranged on one side, far away from the side slope, of the breaking table (12).

4. The weathered soft rock cutting slope window facing wall protection structure of claim 3, further comprising: the window type facing wall body (1) is internally provided with a plurality of rows of water discharge holes (9), the water discharge holes (9) are arranged in a vertically staggered mode, and the outlet height of the lowest water discharge hole (9) is higher than the horizontal height of the breaking table (12) and the side ditch (13).

5. The weathered soft rock cutting slope window facing wall structure according to any one of claims 1-4, wherein: the material of the window type facing wall body (1) is concrete.