CN212077978U - Anti-landslide structure suitable for high fill artificial foundation - Google Patents

Abstract

The utility model relates to an anti-skidding slope reinforcement structure for high fill artificial foundation is in the same direction as slope specifically is an anti-skidding slope structure suitable for high fill artificial foundation, technical problem among the background has been solved, it includes along the top of a slope of original foundation soil in the same direction as slope to the vertical several rows of cell bodies of establishing of digging downwards at the bottom of the slope, the cell body degree of depth is 1.5m at least, all laid on the both sides wall of cell body and consolidated reinforcing bar net, it stretches out original foundation soil in the same direction as slope fill face and inserts the height of filling the soil body and is 2m at least to consolidate reinforcing bar net, it has the backfill compaction to fill the soil body to fill between two reinforcing bar nets of same cell body. The landslide prevention structure is arranged between original foundation soil and a filled soil body, smoothly solves the problem of slippage of filling high fill along the slope, has a breakthrough in concept, effectively ensures the overall stability of the high fill artificial foundation, and is combined with a traditional slope toe reinforcing mode for use, so that the landslide prevention effect is more prominent.

Description

Anti-landslide structure suitable for high fill artificial foundation

Technical Field

The utility model relates to an anti-skidding slope reinforced structure that is used for high artifical ground in same direction as slope of fill specifically is an anti-skidding slope structure suitable for high artifical ground of fill.

Background

With the acceleration of economic development and the increase of infrastructure, the land is filled in the mountain-removing ditch in a large range in China due to the shortage of construction land, namely, the filling soil body 5 is additionally arranged above the original foundation soil 1, so that the high-fill artificial foundation is formed. The height of the high-fill artificial foundation is dozens of meters, even a plurality of projects reach about 100 meters in recent years, and due to the terrain and the topography, landslide hidden dangers are easily formed, and the normal operation of upper facilities is seriously influenced.

Adopt traditional reinforced structure, beat the friction pile at the toe of a slope promptly and consolidate, nevertheless to the landslide that the downhill path arouses, simply consolidate from the toe of a slope, can not solve the root cause problem that the downhill path slided completely, moreover because the relief is too high, filled soil body 5 is thick, buries single formula anti-skidding slope structure such as anchor reinforcing bar, concreting at filled soil body 5's earth's surface and also can not solve the problem of the downhill path slideing of high fill artifical ground well.

Disclosure of Invention

The utility model discloses aim at solving traditional landslide prevention reinforced structure and can not effectively solve the artifical ground of high fill and have the technical problem who slides in the same direction as the slope to a landslide prevention structure suitable for artifical ground of high fill is provided. The invention can be independently adopted according to the influence factors such as the grade of the downslope, the filling height and the like, and can also be combined with other anti-skid structures for use.

The utility model provides a technical means that its technical problem adopted is: the landslide prevention structure suitable for the high-fill artificial foundation comprises a plurality of rows of groove bodies vertically dug downwards from the top to the bottom of an original foundation soil downslope, the depth of each groove body is at least 1.5m, reinforcing steel bar meshes are paved on two side walls of each groove body, the height of each reinforcing steel bar mesh extending out of an original foundation soil downslope filling surface and inserting a filling soil body is at least 2m, and a backfill compacted filling soil body is filled between the two reinforcing steel bar meshes of the same groove body. In the anti-landslide structure, a plurality of rows of grooves are arranged at different downslope heights, then a plurality of rows of backfilled and compacted filled soil bodies are arranged between two reinforcing steel bar nets of the grooves, the filled soil bodies between the reinforcing steel bar nets and filled soil bodies outside the reinforcing steel bar nets penetrate through the reinforcing steel bar nets to be mutually occluded, the reinforcing steel bar nets are arranged at the interfaces of original foundation soil and the filled soil bodies, so that the combination between the filled soil bodies and the original foundation soil is firmer, and the problem of landslide along the slope is solved fundamentally due to the reinforcement of one layer.

The specific operation process is as follows: step one, determining a region to be grooved in an in-situ foundation soil downslope filling region needing to be moved to fill a ditch for land making, and then excavating a groove body by using an earthwork machine; processing a reinforcing steel bar mesh, then arranging a reinforcing steel bar net rack at two side walls of the groove body, and performing inclined rod support type temporary fixing on the reinforcing steel bar mesh; step three, backfilling the filled soil body of the groove body in a layered manner, and rolling and compacting until the height of the filled soil body in the groove body is equal to the height of the filled surface of the downstream downslope of the groove body, and filling large-area earthwork outside the groove body at the same elevation; and step four, when the filling exceeds the elevation of the reinforcing mesh, the normal layer-by-layer filling is carried out synchronously with the large-area filling.

The utility model has the advantages that: the landslide prevention structure is arranged between original foundation soil and a filled soil body, smoothly solves the problem of slippage of filling high fill along the slope, has a breakthrough in concept, effectively ensures the overall stability of the high fill artificial foundation, and is combined with a traditional slope toe reinforcing mode for use, so that the landslide prevention effect is more prominent.

Drawings

Fig. 1 is a schematic structural diagram of an anti-landslide structure suitable for high fill artificial foundation of the present invention.

Fig. 2 is another schematic structural diagram of an anti-landslide structure suitable for high fill artificial foundation of the utility model.

Fig. 3 is a schematic view of a section structure of an anti-landslide structure suitable for high fill artificial foundation.

Fig. 4 is a schematic view of the structure of the reinforcing mesh reinforcement.

Fig. 5 is a schematic top view of two rows of the reinforcing steel mats.

In the figure: 1-in-situ foundation soil; 2-a groove body; 3-filling the surface along the slope; 4-reinforcing the reinforcing mesh; and 5, filling soil.

Detailed Description

Referring to fig. 1 to 5, the anti-landslide structure suitable for high fill artificial foundation of the present invention will be described in detail.

An anti-landslide structure suitable for a high-fill artificial foundation is shown in fig. 1, fig. 2 and fig. 3, and comprises a plurality of rows of groove bodies 2 which are vertically dug downwards from the top of a slope along an original foundation soil 1 to the bottom of the slope, wherein the depth of each groove body 2 is at least 1.5m, reinforcing steel bar nets 4 are laid on two side walls of each groove body 2, the reinforcing steel bar nets 4 extend out of an original foundation soil 1 along a slope filling surface 3 and are inserted into a filling soil body 5 to be at least 2m in height, and a backfill compacted filling soil body 5 is filled between the two reinforcing steel bar nets 4 of the same groove body 2. The anti-landslide structure is provided with the rows of the groove bodies 2, the rows of filled soil bodies 5 which are filled and compacted between the reinforcing steel bar meshes 4 and are arranged on two side walls of the groove bodies 2 are arranged, the filled soil bodies 5 between the reinforcing steel bar meshes 4 and the filled soil bodies 5 outside the reinforcing steel bar meshes 4 are mutually occluded through the reinforcing steel bar meshes 4, and the reinforcing steel bar meshes 4 are arranged at the interface of the original foundation soil 1 and the filled soil bodies 5, so that the filled soil bodies 5 and the original foundation soil 1 are combined more firmly, and the problem of landslide along the slope is solved from the root source by one layer of reinforcement. The compaction degree of the filling soil body 5 filled between the two reinforcing steel bar nets 4 of the same tank body 2 is at least 0.93 and is not lower than the compaction degree required by large-area filling of sections with different elevations.

Further, as a concrete implementation mode of anti-skidding slope structure suitable for artifical ground of high fill, as shown in fig. 1, every row of cell body 2 all arranges along the whole vertical direction of 3 following the slope directions of filling face along the slope, 2 length direction of cell body extend and cover this row of 3 full width of filling face along the slope. Therefore, the filled soil 5 and the original foundation soil 1 are connected into a whole through the groove body 2, the occlusion degree between the filled soil 5 and the external soil between the reinforcing steel bar meshes 4 is improved, and the landslide prevention effect is improved.

Further, as a specific implementation of the anti-landslide structure suitable for high fill artificial foundation, the width of the groove body 2 is 2.5-3 m. The groove body 2 is set to be 2.5-3m, so that the walking of the rolling equipment can be guaranteed, the groove body compaction quality is improved, and a better landslide prevention effect is achieved.

Further, as a concrete implementation mode of anti-skidding slope structure suitable for artifical ground of high fill, as shown in fig. 2, every row of cell body 2 all arranges along the whole vertical direction of 3 following the slope directions of filling along the slope, sets up with the 2 segmentation of the cell body of row, and each segmentation cell body 2 of adjacent row sets up by mistake. Specifically, the width of the tank body 2 is 2.5-3m, the length of the tank body 2 is 80-100m, and the interval between the tank bodies 2 on the same downslope height is 20-30 m. The groove body 2 is set to be 2.5-3m, so that a better anti-landslide effect can be achieved. The distance between the groove bodies 2 on the same downslope height is 20-30m, which can eliminate weak areas and prevent overlarge foundation disturbance caused by too close distance, so that the groove bodies 2 are staggered and the length is set to be 80-100m, and a better landslide prevention effect can be achieved.

Further, as a concrete implementation mode of anti-skidding slope structure suitable for artifical ground of high fill, reinforcing bar net 4 inserts 2 bottoms of cell body 0.3-0.5m, this is that can stretch into below the tank bottom in order to reinforce bar net, makes reinforcing bar net more firm, and the anti-skidding slope effect of playing is better.

Further, as a specific implementation mode of the anti-skidding slope structure suitable for high fill artificial foundation, the horizontal interval of two adjacent rows of groove bodies 2 is 30-50 m. The slope filling area can be arranged at a plurality of positions on the same slope surface according to the size of the filling area along the slope.

Further, as a specific embodiment of the anti-landslide structure suitable for the high fill artificial foundation of the present invention, the depth of the groove body 2 is 1.5-2.5 m; the height of the reinforcing steel bar net 4 inserted into the original foundation soil 1 and the height of the filling soil body 5 are both 2m-3 m. The excavation depth of the groove body 2 depends on the geological condition of the in-situ foundation soil 1, and is preferably 2 m. When the height of the reinforcing mesh reinforcement 4 inserted into the filled soil 5 is 2m-3m, a better landslide prevention effect can be achieved, and the cost for manufacturing the reinforcing mesh reinforcement 4 can be saved.

Further, as a concrete implementation mode of anti-skidding slope structure suitable for high fill artifical ground, as shown in fig. 4 and fig. 5, consolidate reinforcing bar net 4 and form by vertically and horizontally staggered's round steel or steel bar welding, it is specific, the reinforcing bar is diameter and is greater than 25 mm's screw-thread steel and as consolidating reinforcing bar net 4's vertical muscle, the diameter of round steel is 8-10mm and as consolidating reinforcing bar net 4's horizontal muscle, and the interval of indulging, horizontal muscle is 50cm, forms and consolidates reinforcing bar net 4, and every length of consolidating reinforcing bar net 4 is decided according to the length and the site transport condition of round steel, does not need welding or ligature between the adjacent reinforcing bar net reinforcing bar 4 moreover, only need in linking department nature side by side the seam can.

While the invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The landslide prevention structure is suitable for a high-fill artificial foundation and is characterized by comprising a plurality of rows of groove bodies (2) which are vertically dug downwards from the top of a down-slope of original foundation soil (1) to the bottom of the slope, wherein the depth of each groove body (2) is at least 1.5m, reinforcing steel bar nets (4) are laid on two side walls of each groove body (2), each reinforcing steel bar net (4) extends out of a down-slope filling surface (3) of the original foundation soil (1) and is inserted into a filling soil body (5) to be at least 2m in height, and a filling soil body (5) which is backfilled and compacted is filled between the two reinforcing steel bar nets (4) of the same groove body (2).

2. The landslide prevention structure suitable for a high fill artificial foundation according to claim 1 wherein each row of troughs (2) is arranged along a vertical direction of a downslope direction of the whole downslope filling face (3), and the troughs (2) extend in a length direction to cover the full width of the downslope filling face (3).

3. The landslide prevention structure suitable for high fill artificial foundation according to claim 2 wherein the width of the tank body (2) is 2.5-3 m.

4. The landslide prevention structure suitable for a high fill artificial foundation according to claim 1, wherein each row of the groove bodies (2) is arranged along a vertical direction of a whole down-slope filling face (3) along a slope direction, the groove bodies (2) in the same row are arranged in sections, and the section groove bodies (2) in adjacent rows are arranged in a staggered manner.

5. The landslide prevention structure suitable for a high fill artificial foundation according to claim 4, wherein the width of the trough body (2) is 2.5-3m, the length of the trough body (2) is 80-100m, and the intervals between the trough bodies (2) on the same downslope height are 20-30 m.

6. Landslide prevention structure suitable for high fill artificial foundation according to any one of claims 2-5 wherein the reinforcing mesh reinforcement (4) is inserted 0.3-0.5m into the bottom of the tank (2).

7. The landslide prevention structure suitable for high fill artificial foundation according to claim 6 wherein the horizontal distance between two adjacent rows of groove bodies (2) is 30-50 m.

8. The landslide prevention structure suitable for high fill artificial foundation according to claim 7 wherein the depth of said tank (2) is 1.5-2.5 m; the depth of the reinforcing steel bar net (4) inserted into the original foundation soil (1) and the depth of the filled soil body (5) are both 2m-3 m.

9. The landslide prevention structure for high fill artificial foundation according to claim 8 wherein said reinforcing mesh reinforcement (4) is welded with criss-cross round steel or steel bars.

10. The landslide prevention structure suitable for high fill artificial foundation according to claim 9 wherein said steel bars are thread steel with diameter larger than 25mm and used as longitudinal bars of reinforcing mesh reinforcement (4), and said round steel bars are 8-10mm in diameter and used as transverse bars of reinforcing mesh reinforcement (4).

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