CN213978997U - Reinforcing structure for low-side slope landslide body - Google Patents
Reinforcing structure for low-side slope landslide body Download PDFInfo
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- CN213978997U CN213978997U CN202022412631.8U CN202022412631U CN213978997U CN 213978997 U CN213978997 U CN 213978997U CN 202022412631 U CN202022412631 U CN 202022412631U CN 213978997 U CN213978997 U CN 213978997U
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Abstract
The application relates to a reinforcing structure of a landslide body with a short slope, which relates to the field of geotechnical engineering and comprises a prestressed anchor cable, wherein the prestressed anchor cable comprises an inner anchor head, a cable rope and an outer anchor head; the inner anchor head is fixed in a rock stratum under the landslide body, the cable is positioned in the landslide body, the outer anchor head extends out of the slope surface of the landslide body, and a reinforcing piece for reinforcing the landslide body is arranged at the outer anchor head; a plurality of first water guide grooves are formed in the landslide body, the first water guide grooves are U-shaped, the openings of the first water guide grooves face upwards, and one ends of the first water guide grooves in the length direction penetrate through the slope surface of the landslide body. This application has the rainwater of avoiding permeating in the landslide body as far as possible and influences the connectivity between the landslide body and the stratum, and then avoids the rainwater to influence the effect of consolidating the degree.
Description
Technical Field
The application relates to the field of geotechnical engineering, in particular to a reinforcing structure for a short slope landslide body.
Background
A large number of large landslides are distributed in the southwest mountain areas of China, engineering construction usually adopts an avoidance mode to pass through, but along with the large number of engineering construction, a plurality of cases that the engineering construction cannot avoid the large landslides appear, only anti-skidding measures can be adopted to reinforce the large landslides, a common reinforcing method is a prestressed anchor cable reinforcing method, and the prestressed anchor cable is a cable-shaped support for anchoring an anchor cable in a rock body by adopting a prestressed method and is used for reinforcing a side slope.
The present chinese patent with patent publication No. CN205421281U proposes a high slope landslide body reinforced structure, which includes: a plurality of fixing units, each fixing unit including a pair of anchors and a fixing weight; the anchoring part comprises an anchor rod and a sleeve, the sleeve is fixed in the high slope landslide body, and the anchor rod is arranged in the sleeve; two ends of the fixed cross beam are respectively provided with a through hole, the fixed cross beam is arranged on the slope surface, and two ends of the fixed cross beam are respectively connected with a pipe sleeve; the separating and blocking structure comprises a steel mesh and a concrete slab fixed on the steel mesh, and the steel mesh is arranged on the lower portion of the high slope landslide body.
In view of the above-mentioned related technologies, the inventor believes that there are defects that rainwater is often present in an area where a landslide body is present, and when a large amount of rainfall occurs, rainwater infiltrates into the landslide body to deteriorate the connectivity between the landslide body and a rock stratum, thereby affecting the fastening effect of the landslide body.
SUMMERY OF THE UTILITY MODEL
In order to reduce the influence of rainwater to the landslide body fastening degree, this application provides a short side slope landslide body reinforced structure.
The application provides a short side slope landslide body reinforced structure adopts following technical scheme:
a reinforcing structure for a landslide body of a short slope comprises a plurality of prestressed anchor cables, wherein each prestressed anchor cable comprises an inner anchor head, a cable rope and an outer anchor head;
the inner anchor head is fixed in a rock stratum below the landslide body, the rope is positioned in the landslide body, the outer anchor head extends out of the slope surface of the landslide body, and a reinforcing member for reinforcing the landslide body is arranged on the outer anchor head;
a plurality of first water chutes are arranged in the landslide body, the first water chutes are U-shaped and have upward openings, and one end of each first water chute in the length direction penetrates through the slope surface of the landslide body.
By adopting the technical scheme, when the inner anchor head is fixedly connected with the rock stratum below the landslide body, the prestressed anchor cable and the reinforcing piece reinforce the landslide body, when raining, rainwater permeates into the landslide body and is collected by the water guide groove after falling into the water guide groove, further rainwater is prevented from continuously permeating, rainwater in the water guide groove flows out of the landslide body along the water guide groove, and the rainwater permeating into the landslide body is prevented from influencing the connectivity between the landslide body and the rock stratum as far as possible, so that the reinforcing effect is influenced.
Optionally, an inverted filter layer is arranged in the first water chute.
Through adopting above-mentioned technical scheme, set up in the anti-filtering layer of first guiding gutter when avoiding raining the internal earth of landslide blocks up first guiding gutter, and then influences its water guide performance.
Optionally, the first water chute is arranged to be inclined downwards.
Through adopting above-mentioned technical scheme, the water that the first guiding gutter that the slope set up is convenient for assemble in the guiding gutter flows along the guiding gutter, strengthens the drainage efficiency of first guiding gutter.
Optionally, a plurality of U-shaped second water chutes are arranged on the slope surface of the sliding mass, openings of the second water chutes are inclined upwards, the second water chutes are arranged along the slope surface of the sliding mass, communication ports are formed in the bottom wall of the second water chute, and the first water chute is communicated with the second water chute through the communication ports.
By adopting the technical scheme, when rainwater accumulated in the water guide groove flows out along the water guide groove, the rainwater flows into the second water guide groove and is left along the landslide body along the second water guide groove, so that the situation that the rainwater brings away soil on the surface of the landslide body when flowing down along the landslide body is avoided, and the landslide body is thinned and then the reinforcing degree of the fastener on the landslide body is influenced is avoided.
Optionally, the reinforcement comprises a geogrid;
the geogrid cover is arranged on the slope surface of the landslide body, and a connecting piece for connecting the outer anchor head with the geogrid is arranged on the geogrid.
By adopting the technical scheme, the outer anchor head is tensioned with the geogrid through the connecting piece, so that the prestressed stay rope tensions the landslide body through the geogrid to play a role in reinforcing the landslide body, the geogrid is light in material and low in cost, construction cost is reduced, and meanwhile, the geogrid is flexible and can be tightly attached to the landslide body along the shape of the landslide body, and the role of reinforcing the landslide body is fully played.
Optionally, the connector comprises an internally threaded sleeve;
the internal thread sleeve is arranged on one side of the geogrid close to the landslide body, and the outer anchor head is in threaded connection with the thread sleeve.
Through adopting above-mentioned technical scheme, when outer anchor head and internal thread sleeve threaded connection, the prestressing force cable is connected with geogrid, and simultaneously, the prestressing force cable that the personnel's accessible of laying adjusted to geogrid's taut degree of geogrid is adjusted to the screw in degree of depth of outer anchor head, avoids the too big geogrid of damage of pulling force or pulling force not enough and can not realize good reinforcement effect.
Optionally, the geogrid is covered with geotextile, foreign soil is sprayed on the geotextile to form a foreign soil layer, and the foreign soil layer is arranged on the foreign soil layer.
Through adopting above-mentioned technical scheme, contain the nutrient element that is fit for the vegetation growth in the soil dressing, the soil dressing layer does benefit to the vegetation growth and forms the vegetable layer, when the root system of vegetation on the vegetable layer grows to the landslide in vivo, the vegetable layer can absorb the inside moisture of landslide body, reduce the internal water content of landslide, the flourishing root system of vegetable layer can also play the effect of the landslide body of stabilizing when precipitation simultaneously, finally realize avoiding the internal moisture of landslide to influence the connectivity of landslide body and rock stratum and then influence the reinforcement performance to the landslide body.
Optionally, a concrete slab is arranged at the lower end of the sliding mass, and the second water chute penetrates through the concrete slab at the toe of the sliding mass.
By adopting the technical scheme, the lower end of the slip mass cannot play a good role of adding due to the fact that the soil layer is thinner than the slip mass, the concrete plate is locally used to make up for the insufficient reinforcement of the prestressed anchor cable at the toe, meanwhile, the soil layer with the thinner slip mass toe is more prone to water and soil loss in the rainy day, the concrete plate is waterproof, and the water and soil at the toe of the slip mass can be effectively maintained.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the inner anchor head is fixedly connected with a rock stratum below the landslide body, the landslide body is reinforced by the prestressed anchor cable and the reinforcing piece, when raining, rainwater permeates into the landslide body, falls into the water guide groove and is collected by the water guide groove, further rainwater is prevented from continuously permeating, rainwater in the water guide groove flows out of the landslide body along the water guide groove, and the rainwater permeating into the landslide body is prevented from influencing the connectivity between the landslide body and the rock stratum as much as possible, so that the reinforcing effect is further influenced;
2. when rainwater accumulated in the water chute flows out along the water chute, the rainwater flows into the second water chute and is left along the landslide body along the second water chute, so that the phenomenon that the landslide body is thinned to further influence the reinforcement degree of the fastener on the landslide body due to the fact that the rainwater takes away soil on the surface of the landslide body when flowing down along the landslide body is avoided;
3. the alien soil contains nutrient elements suitable for vegetation growth, the alien soil layer is beneficial to vegetation growth to form a vegetation layer, and when roots of vegetation on the vegetation layer grow into a landslide body, the vegetation layer can absorb moisture in the landslide body and reduce water content in the landslide body.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged partial schematic view of portion C of FIG. 2;
fig. 4 is a schematic sectional view taken along line B-B in fig. 1.
Reference numerals: 1. a pre-stressed anchor cable; 11. an inner anchor head; 12. a rope; 13. an outer anchor head; 2. a first water chute; 3. a reverse filtering layer; 4. a second water chute; 41. a communication port; 5. a geogrid; 6. an internally threaded sleeve; 7. a passenger soil layer; 8. a vegetable layer; 9. a concrete slab.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses short side slope landslide body reinforced structure. Referring to fig. 1 and 2, the reinforcing structure for the landslide body with the short side slope comprises a plurality of prestressed anchor cables 1, the number of the prestressed anchor cables 1 is four in the embodiment of the application, each prestressed anchor cable 1 comprises an inner anchor head 11, a cable rope 12 and an outer anchor head 13, the inner anchor heads 11 are placed in holes after drilling is carried out on a rock stratum under the landslide body, concrete is poured, the inner anchor heads 11 are fixedly connected into the rock stratum, the cable ropes 12 penetrate through the landslide body, the outer anchor heads 13 are exposed out of the landslide body, and external threads are arranged on the outer anchor heads 13. Referring to fig. 3, the upper cover of the landslide body is provided with a geogrid 5, the geogrid 5 is provided with a connecting piece for connecting an outer anchor head 13 with the geogrid 5, the connecting piece comprises an internal thread sleeve 6, the internal thread sleeve 6 is made of plastic materials and is fixedly connected with the side face, close to the landslide body, of the geogrid 5, and the outer anchor head 13 is connected with the internal thread sleeve 6 in a thread mode.
The outer anchor head 13 is tensioned with the geogrid 5 through the connecting piece, so that the prestressed stay cable tensions the landslide body through the geogrid 5, and the effect of reinforcing the landslide body is achieved.
In order to realize the purpose of rapidly guiding out water in the interior and on the surface of a landslide body in the rainy day, avoiding the influence of rainwater on the connection between the landslide body and a rock stratum and further on the reinforcement of the landslide body, referring to fig. 1 and 4, a plurality of first water chutes 2 formed by pouring concrete are arranged in the landslide body, the number of the first water chutes 2 is three in the embodiment of the application, the first water chutes 2 are U-shaped and have upward openings, the first water chutes 2 are arranged in a downward inclined manner, and an inverted filter layer 3 is arranged in the first water chutes 2; a plurality of U-shaped second water guide grooves 4 formed by pouring concrete are formed in the slope surface of the sliding body, the openings of the second water guide grooves 4 are inclined upwards, a plurality of communication ports 41 are formed in the bottom walls of the second water guide grooves 4, and the first water guide grooves 2 are communicated with the second water guide grooves 4 through the communication ports 41.
When raining, rainwater permeates into the landslide body, falls into the water guide groove and is collected by the water guide groove, further rainwater is prevented from continuously permeating, rainwater in the water guide groove flows out of the landslide body along the water guide groove, and the rainwater permeating into the landslide body is prevented from influencing the connectivity between the landslide body and the rock stratum as far as possible, so that the reinforcing effect is further influenced.
In order to further reinforce the landslide body, referring to fig. 1, a geotechnical grid 5 is covered with geotechnical cloth (not shown in the figure), alien soil is sprayed on the geotechnical cloth to form an alien soil layer 7, vegetation is planted on the alien soil layer 7 to form a vegetation layer 8, and a concrete slab 9 is covered at the toe of the side slope.
The implementation principle of the reinforcing structure of the landslide body with the short side slope in the embodiment of the application is as follows: when the inner anchor head 11 is fixedly connected with a rock stratum below the landslide body, the prestressed anchor cable 1 reinforces the landslide body through tensioning the geogrid 5, when raining, rainwater permeates into the landslide body, falls into the water guide groove and is collected by the water guide groove, further rainwater is prevented from continuously seeping, rainwater in the water guide groove flows out of the landslide body along the water guide groove, and the rainwater permeated into the landslide body is prevented from influencing the connectivity between the landslide body and the rock stratum as far as possible, so that the reinforcing effect is further influenced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a short side slope landslide body reinforced structure which characterized in that: the prestressed anchor cable comprises a plurality of prestressed anchor cables (1), wherein each prestressed anchor cable (1) comprises an inner anchor head (11), a cable rope (12) and an outer anchor head (13);
the inner anchor head (11) is fixed in a rock stratum below the landslide body, the cable (12) is positioned in the landslide body, the outer anchor head (13) extends out of the slope surface of the landslide body, and a reinforcing member for reinforcing the landslide body is arranged on the outer anchor head (13);
a plurality of first water chutes (2) are arranged in the landslide body, the first water chutes (2) are U-shaped and have upward openings, and one ends of the first water chutes (2) in the length direction penetrate through the slope surface of the landslide body.
2. The short-side-slope landslide body reinforcement structure of claim 1, wherein: and an inverted filter layer (3) is arranged in the first water chute (2).
3. The short-side-slope landslide body reinforcement structure of claim 2, wherein: the first water chute (2) is obliquely arranged.
4. The short-side-slope landslide body reinforcement structure of claim 3, wherein: the multiple U-shaped second water guide grooves (4) are formed in the slope surface of the sliding mass, openings of the second water guide grooves (4) are inclined upwards, the second water guide grooves (4) are arranged along the slope surface of the sliding mass, communication ports (41) are formed in the bottom wall of the second water guide grooves (4), and the first water guide grooves (2) are communicated with the second water guide grooves (4) through the communication ports (41).
5. The short-side-slope landslide body reinforcement structure of claim 4, wherein: the reinforcement comprises a geogrid (5);
the geogrid (5) covers the slope surface of the landslide body, and a connecting piece for connecting the outer anchor head (13) with the geogrid (5) is arranged on the geogrid (5).
6. The short-side-slope landslide body reinforcement structure of claim 5, wherein: the connection piece comprises an internally threaded sleeve (6);
the internal thread sleeve (6) is arranged on one side, close to the landslide body, of the geogrid (5), and the outer anchor head (13) is in threaded connection with the thread sleeve.
7. The short-side-slope landslide body reinforcement structure of claim 6, wherein: the geogrid (5) is covered with geotextile, foreign soil is sprayed on the geotextile to form a foreign soil layer (7), and a vegetable layer (8) is arranged on the foreign soil layer (7).
8. The short-side-slope landslide body reinforcement structure of claim 7, wherein: the lower end of the sliding body is provided with a concrete plate (9), and the second water chute (4) penetrates through the concrete plate (9) at the slope toe of the sliding body.
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CN202022412631.8U CN213978997U (en) | 2020-10-27 | 2020-10-27 | Reinforcing structure for low-side slope landslide body |
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CN202022412631.8U CN213978997U (en) | 2020-10-27 | 2020-10-27 | Reinforcing structure for low-side slope landslide body |
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