CN114197502A - Recyclable slope lamination green protection grid and construction method thereof - Google Patents

Abstract

The invention discloses a recyclable slope lamination green protection grid and a construction method thereof. The protective grid chamber comprises a grid which is formed by splicing four components with the same structure and fixing the components through bolts. Before construction, low-alkali concrete is sprayed to the slope, anchor rod holes can be pre-drilled in deep soil sections, and shallow soil sections can be arranged according to requirements. Four identical members are bolted into cells, the cells being secured by anchor rods and bolted to each other around the cells. The interior of the grid chamber is filled with foreign soil or ecological bags, so that the slope body is greened, the protective performance is improved, and the main body of the grid chamber can be taken down after the plants grow, thereby realizing cyclic utilization. The invention can be well applied to the side slope lamination layer, makes up the defects of anchor rod frame beams and other modes in the side slope lamination layer protection aspect, and has the advantages of simple structure, convenience in maintenance and replacement, reduction of earth and stone excavation amount, short construction period and the like.

Description

Recyclable slope lamination green protection grid and construction method thereof

Technical Field

The invention relates to the technical field of slope protection, in particular to a recyclable slope lamination green protection grid and a construction method thereof.

Background

In recent years, the national infrastructure field is greatly developed, and the center of gravity of infrastructure gradually inclines to an area with poor geological conditions, which is a challenge and a chance for improving the construction technology. Along with the implementation of major strategies of the strong country of traffic, the construction of public, water, iron and air large channels across the country is carried out in a fierce manner, and the construction of traffic infrastructures is increasing day by day. The slope lamination layer is formed by washing and transporting weathered products of rocks to the lower part of a hill or a foot area in the slope direction of the hill due to rainfall and flowing water, and the slope lamination layer has the characteristics of loose soil texture, high compressibility and strong subsidence, and is easy to slide along a contact line because the gradient of the bottom surface of the slope lamination layer is always consistent with that of the slope surface of an underlying bedrock. The loose slope lamination layer is a slope lamination layer accumulated by accumulation with a loose structure, is greatly influenced by external environment, is very easy to deform, even can obviously deform along the base covering surface until sliding damage is generated, and therefore the problem of the loose slope lamination layer needs to be properly managed.

The problem of loose slope lamination of a high slope is a great challenge to the traditional slope protection mode, and the conventional slope protection methods at present comprise anchor rod frame beam protection, ecological bag accumulation protection, spray anchor net combined protection, masonry stone protection and the like.

The anchor rod frame beam protection is a scheme that an anchor rod is firstly driven in to fix a frame beam, and then concrete is injected into the frame beam. During construction, the point position of the anchor rod is determined, the anchor rod is installed after drilling and hole cleaning, then the frame beam is bound by reinforcing steel bars on site, then the template is erected, concrete is poured into the frame beam, then the concrete in the steel truss is maintained, and finally planting soil is backfilled. The anchor frame beam has the following disadvantages: 1. large components and inconvenient transportation; 2. concrete needs to be poured on the slope body, so that the influence on the surrounding environment is large; 3. the curing period of the cast-in-place concrete is too long; 4. digging a large square; 5. the dead weight is too big, and the soil layer easily collapses.

Pile up ecological bag protection is one kind and sets up the grass kind in the bag body in advance, then with piling up the bag body, cover the scheme on whole slope. During construction, the slope is excavated, one row of the slope bottom is paved, the second row is paved, and the rest is done in the same way until the whole slope is paved. The pile-up ecological bag slope protection has the following disadvantages: 1. the excavation workload is large; 2. the ecological bag is easy to slide down the slope; 3. the survival rate of the seeds cannot be guaranteed.

The combined protection of spray anchor net is a scheme of using spray concrete and reinforcing bar net to seal slope surface and using anchor rod to reinforce slope surface. During construction, anchor rods with certain length and distribution are constructed in a rock body and act together with the rock body to form a complex, so that the strength of the rock body is made up for the deficiency, the anchoring effect is exerted, and the stability of the side slope is ensured. Meanwhile, the reinforcing mesh is arranged on the slope surface to spray concrete, so that the effect of restraining the slope surface from deforming is achieved, and the whole slope surface is integrated. The spray anchor net combined protection has the following defects: 1. the concrete needs to be sprayed on site, and the influence on the surrounding environment is large; 2. the application range is small, the method is not suitable for clay slope with poor diagenesis, and can not be directly used in water gushing areas, and the slope can be used without water backflow after water drainage; 3. after the anchor rod, the reinforcing mesh and the concrete are aged, the protection is insufficient.

The mortar rubble protection is a scheme that adopts masonry structure to be used for combining with the mortar so as to realize the bank protection function. During construction, the rubbles are cleaned firstly, then the mortar is stirred by a stirrer, and then the mortar is filled into the masonry joint, so that the sticking is realized. The grout rubble protection shortcomings are as follows: 1. the self weight is large, and the falling is easy; 2. the application range is limited, and the framework revetment is only suitable for general more stable soil layers and stone slopes and is not suitable for steep slopes with less stable soil; 3. the construction requirement is high, the protective performance tests the construction quality very much, and the vertical slope from bottom to top of the rubble builds folding type or arch skeleton, and the brickwork can play a role just to be stable, closely knit.

Disclosure of Invention

The invention aims to: aiming at the problems of large excavation amount, structure aging, environmental pollution and the like of the existing slope protection measures, the recyclable slope laminate green protection structure is provided, has the advantages of environmental protection, light structure and low manufacturing cost, and aims to make up the defects of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a but green protection check room of cyclic utilization's slope lamination, the protection check room includes the grid, and the grid is formed by bolt fastening after four components that the structure is the same are spliced each other, arbitrary component one end extends at the middle part and forms middle part extension section, and the other end extends at the upper portion and forms upper portion extension section, and the upper portion extension section of one of them component overlaps mutually with the middle part extension section of another component, and four components overlap mutually to make up into the grid.

It needs to be further explained that the inner side of the grid is provided with a drain hole, and both sides of the drain hole are provided with fiber covers. The fiber cover is a grid-shaped polyethylene fiber cover, and can effectively prevent the water drainage hole from being blocked.

It should be further noted that the upper extension section of each component is provided with a first threaded hole, the middle extension section is provided with a second threaded hole, the first threaded hole and the second threaded hole are both internally provided with steel cylinders with threads, the first threaded hole of the upper extension section of one component is in lap joint with the second threaded hole of the middle extension section of the other component, the lap joint is fixed by bolts, and a water supply and drainage channel is arranged below the lap joint of the two threaded holes.

It needs to be further explained that an additional platform is arranged on the outer side of the grating, an anchor rod hole is formed in the additional platform, a smooth steel circular column is arranged in the anchor rod hole, and an anchor rod is inserted into the anchor rod hole for supporting.

The construction method comprises the following steps:

the method comprises the following steps: splicing the cell main body, aligning different extension sections of two identical components to align a first threaded hole and a second threaded hole of the two components, screwing bolts into the first threaded hole and the second threaded hole, connecting the combined body to other components and screwing after screwing, and then connecting the head side and the tail side of a new combined body by using a new component so as to form four cell chambers with the tail side engaged with the tail side of the component, wherein the four components are connected to form a cell chamber, and the cell chamber is fixed by using four bolts;

step two: spraying low-alkali concrete, firstly performing waterproof and drainage facilities before spraying the low-alkali concrete, and then performing high-pressure spraying on the low-alkali concrete on the whole slope to stabilize a shallow soil section;

step three: placing the grid chambers, sequentially laying the grid chambers from bottom to top, firstly placing one grid chamber at the slope toe after the anti-slide piles are arranged at the slope bottom, wherein the shape of the grid chamber can be changed, adjusting the grid chamber into a square or a rhombus according to actual needs, and inserting an anchor rod into an anchor rod hole to fix the first grid chamber after the adjustment is finished; next, laying the next grid chamber at the adjacent position of the same row of the first grid chamber, combining the upper extension section of the first grid chamber and the middle extension section of the other grid chamber to finish horizontal lap joint, aligning bolt holes on the outer sides of the extension sections, screwing bolts, and carrying out the same operation until the row is fully paved; then, a second layer is laid, the second layer and the first layer are horizontally bolted through the combination of the extension sections, whether an anchor rod needs to be inserted into the position is determined according to the report of geological detection, if so, the anchor rod is driven into the anchor rod hole (after that, the previous operation is repeated until the slope is fully paved, and after the pavement is finished, a drainage channel or a water supply pipe is arranged in the gap between the adjacent cells;

step four: filling foreign soil and detaching the cell main body, filling the foreign soil in the cell and planting plants; after the plants grow well, the bolts among the grid chambers are screwed out from the uppermost row of the slope top, and the grid chambers are sequentially taken down from the slope top, so that the cyclic utilization of the grid chambers is realized.

Compared with the prior art, the invention has the beneficial effects that:

(1) the upper part and the lower part of each grid chamber can be communicated, water can be supplied to the upper side, and the water flows downwards layer by layer along the drainage holes of the grid chambers, so that each grid chamber can store a certain amount of water for the growth of plants;

(2) the ecological bag or the foreign soil is arranged in the grid room, the tendency of the bag to slide downwards is counteracted by the combined action of the friction between the bag body and the slope and the anchor rod, compared with the traditional bag laying method, the ecological bag or the foreign soil only needs to be laid layer by layer, and the using amount of the bag or the foreign soil is greatly reduced;

(3) the invention can be used by pulling to the construction site. The four components forming the grid chamber are consistent in completion, simple and convenient to manufacture, easy to replace due to damage, capable of preventing soil body loss due to the existence of the grid and not influencing drainage, and meanwhile, the grid has a filtering and intercepting function and is more environment-friendly, so that the use value is obviously improved;

(4) after the plants grow out, the structural main body can be detached to realize cyclic utilization;

(5) the adaptability is wide, and to the dark district of soil horizon, protect with the stock, to the shallow district shotcrete of soil horizon.

(6) The structure is reasonable in design, the side slope loose slope lamination can be used for loose slope laminations with different thicknesses, the side slope loose slope laminations can be effectively protected, the side slope loose slope laminations can be directly used after being transported, the construction time of workers on a slope is shortened, the disassembly is convenient, and the recycling can be realized;

(7) the component of the invention has simple structure and is easy to replace after being damaged;

(8) the structure improves the survival rate of the seeds, keeps the water capable of supplying the growth of the plants while preserving soil and preventing water, is friendly to the surrounding environment and does not cause pollution.

Drawings

FIG. 1 is a schematic view of a cell arranged on a slope;

FIG. 2 is a front view of a component;

FIG. 3 is a top view of the member;

FIG. 4 is a left side view of the member;

FIG. 5 is a schematic view of a cell;

FIG. 6 is a front view of a cell;

FIG. 7 is a top view of a cell;

FIG. 8 is a left side view of the cells;

FIG. 9 is a schematic view of one of the overlapping modes between cells;

FIG. 10 is a schematic view of another type of lap joint between cells;

FIG. 11 is a schematic view of the use of the cells in a slope;

in the figure: 1. a drain hole; 2. a fabric cover; 3. an upper extension section; 4. a middle extension section; 5. a first threaded hole; 6. a bolt; 7. a water supply and drainage channel; 8. a platform; 9. an anchor rod hole; 15. and a second threaded hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1-10, a recyclable slope layer green protection structure provided by an embodiment of the invention is formed by assembling four identical components and then combining the components with bolts.

The utility model provides a green protection check room of circulated utilization's slope lamination layer, the protection check room includes the grid, and the grid is formed by bolt fastening after four components that the structure is the same each other splice, arbitrary component one end extends at the middle part and forms middle part extension 4, and the other end extends at upper portion and forms upper portion extension 3, and the upper portion extension of one of them component overlaps mutually with the middle part extension of another component, and four components overlap mutually, thereby make up into the grid.

The inner side of the grid is provided with a drain hole 1, and two sides of the drain hole 1 are provided with fiber covers 2. The fiber cover 2 is a grid-shaped polyethylene fiber cover, and can effectively prevent the water drainage holes from being blocked.

The upper extension section 3 of each component is provided with a first threaded hole 5, the middle extension section 4 is provided with a second threaded hole 15, and steel cylinders with internal threads are arranged in the first threaded hole 5 and the second threaded hole 15 (wherein the first threaded hole 5 of the upper extension section of one component is in lap joint with the second threaded hole 15 of the middle extension section of the other component, the lap joint is fixed through a bolt 6, and a water supply and drainage channel 7 is arranged below the lap joint of the two threaded holes.

It needs to be further explained that an additional platform 8 is arranged on the outer side of the grating, an anchor rod hole 9 is formed in the additional platform, a smooth steel circular column is arranged in the anchor rod hole 9, and an anchor rod 10 is inserted into the anchor rod hole 9 for supporting.

The construction method comprises the following steps:

the method comprises the following steps: splicing the cell main body, firstly aligning different extension sections of two identical components to ensure that a first threaded hole 5 and a second threaded hole 15 of the two components are also aligned, screwing bolts 6 into the first threaded hole 5 and the second threaded hole 15, connecting the combined body to other components and screwing after screwing, and then connecting the head side and the tail side of the new combined body by using a new component to form four cell chambers with engaged components, wherein the four components are connected to form one cell chamber, and the one cell chamber is fixed by using four bolts;

step two: spraying low-alkali concrete, firstly performing waterproof and drainage facilities before spraying the low-alkali concrete, and then performing high-pressure spraying on the low-alkali concrete on the whole slope to stabilize a shallow soil section;

step three: placing the grid chambers, sequentially laying the grid chambers from bottom to top in rows, firstly placing one grid chamber at the slope toe after the anti-slide piles are arranged at the slope bottom, wherein the shape of the grid chamber can be changed, adjusting the grid chamber into a square or a rhombus according to actual needs, and inserting an anchor rod 10 into an anchor rod hole 9 to fix the first grid chamber after the adjustment is finished; next, laying the next grid chamber at the adjacent position of the same row of the first grid chamber, combining the upper extension section 3 of the first grid chamber and the middle extension section 4 of the other grid chamber to finish horizontal lap joint, aligning bolt holes on the outer sides of the extension sections, screwing bolts 6, and carrying out the same operation until the row is fully paved; then, starting to lay a second layer, wherein the second layer and the first layer are horizontally bolted through the extension sections in a combined mode, and whether an anchor rod needs to be inserted at the position is determined according to the report of geological exploration, and if needed, an anchor rod 10 is driven into the anchor rod hole 9; then, repeating the previous operation until the slope surface is fully paved, and arranging a drainage channel or a water supply pipe in a gap between adjacent cells after paving;

step four: filling foreign soil and detaching the cell main body, filling the foreign soil in the cell and planting plants; after the plants grow well, the bolts among the grid chambers are screwed out from the uppermost row of the slope top, and the grid chambers are sequentially taken down from the slope top, so that the cyclic utilization of the grid chambers is realized.

Claims (5)

1. The recyclable slope layer green protection grid chamber is characterized by comprising a grid, wherein the grid is formed by splicing four components with the same structure and then fixing the components through bolts, one end of each component extends to form a middle extending section (4) in the middle, the other end of each component extends to form an upper extending section (3) in the upper portion, the upper extending section of one component is mutually overlapped with the middle extending section of the other component, and the four components are mutually overlapped to form the grid.

2. The recyclable palygorskite green protection cell according to claim 1, characterized in that: the inner side of the grid is provided with a drain hole (1), and both sides of the drain hole (1) are provided with fiber covers (2).

3. The recyclable palygorskite green protection cell according to claim 1, characterized in that: the upper extension section (3) of each component is provided with a first threaded hole (5), the middle extension section (4) is provided with a second threaded hole (6), steel cylinders with threads on the inner side are arranged in the first threaded hole (5) and the second threaded hole (6), the first threaded hole (5) of the upper extension section of one component is in lap joint with the second threaded hole (15) of the middle extension section of the other component, the lap joint is fixed through a bolt (6), and a water supply and drainage channel (7) is arranged below the lap joint of the two threaded holes.

4. The recyclable palygorskite green protection cell according to claim 1, characterized in that: the grating outer side is equipped with additional platform (8), be equipped with anchor rod hole (9) on the additional platform, be equipped with glossy steel ring post in anchor rod hole (9), anchor rod hole (9) are used for stock (10) to strut.

5. The recyclable palygorskite green protection cell according to claim 1, characterized in that: the construction method comprises the following steps:

the method comprises the following steps: splicing the cell main body, firstly aligning different extension sections of two identical components to ensure that a first threaded hole (5) and a second threaded hole (15) of the two components are also aligned, screwing bolts (6) into the first threaded hole (5) and the second threaded hole (15), connecting the combined body to other components and screwing after screwing, and then connecting the head side and the tail side of a new combined body by using a new component to form four cell chambers with engaged components in the way of ending and ending, wherein the four components are connected to form one cell chamber, and one cell chamber is fixed by using four bolts;

step two: spraying low-alkali concrete, firstly performing waterproof and drainage facilities before spraying the low-alkali concrete, and then performing high-pressure spraying on the low-alkali concrete on the whole slope to stabilize a shallow soil section;

step three: placing the grid chambers, sequentially laying the grid chambers from bottom to top in rows, firstly placing one grid chamber at the slope toe after the anti-slide piles are arranged at the slope bottom, wherein the shape of the grid chamber can be changed, adjusting the grid chamber into a square or a rhombus according to actual needs, and inserting an anchor rod (10) into an anchor rod hole (9) to fix the first grid chamber after the adjustment is finished; next, laying the next grid chamber at the adjacent position of the same row of the first grid chamber, combining the upper extension section (3) of the first grid chamber and the middle extension section (4) of the other grid chamber to finish horizontal lap joint, aligning bolt holes on the outer side of the extension sections, screwing bolts (6), and carrying out the same operation until the row is fully paved; then, starting to lay a second layer, wherein the second layer and the first layer are horizontally bolted through the extension sections in a combined mode, and whether a bolt needs to be inserted at the position is determined according to the report of geological exploration, and if necessary, a bolt (10) is driven into the bolt hole (9); then, repeating the previous operation until the slope surface is fully paved, and arranging a drainage channel or a water supply pipe in a gap between adjacent cells after paving;

step four: filling foreign soil and detaching the cell main body, filling the foreign soil in the cell and planting plants; after the plants grow well, the bolts among the grid chambers are screwed out from the uppermost row of the slope top, and the grid chambers are sequentially taken down from the slope top, so that the cyclic utilization of the grid chambers is realized.

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