CN213653481U - Prestressed anchor cable frame beam device suitable for stability of strongly weathered rock slope - Google Patents
Prestressed anchor cable frame beam device suitable for stability of strongly weathered rock slope Download PDFInfo
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- CN213653481U CN213653481U CN202020441368.2U CN202020441368U CN213653481U CN 213653481 U CN213653481 U CN 213653481U CN 202020441368 U CN202020441368 U CN 202020441368U CN 213653481 U CN213653481 U CN 213653481U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The utility model discloses a stable prestressed anchorage cable sash beam device of adaptation strong morals and manners rock matter side slope, including reinforced concrete sash beam structure and prestressed anchorage cable supporting construction. The reinforced concrete frame lattice beam structure adopts the structural form of the prestressed anchor cables and the reinforced concrete frame lattice beams, a plurality of prestressed anchor cables are arranged on the strongly weathered rocky slope, the slope surface of the vertical slope is anchored in a mountain, and the reinforced concrete frame lattice beam structure poured by the crossed arrangement of the grids on the slope forms a whole, so that the comprehensive effect of reinforcing a plurality of anchor cables is fully exerted, the deep sliding is effectively prevented, and the integral stability of the slope is ensured. Meanwhile, the reinforced concrete lattice beams protect the strongly weathered rocky slope, the problem that the stability and reinforcement effect of a single anchor cable on the strongly weathered rocky slope is poor can be effectively solved, the tendency that the slope is further expanded outwards due to further weathering deformation and damage caused by excavation of the mountain slope is restrained, the risk that the slope is cracked or even collapses is avoided, the stability and safety of the slope are improved, and the problem that the stability and reinforcement effect of the single anchor cable on the strongly weathered rocky slope is poor is effectively solved.
Description
Technical Field
The utility model relates to an engineering is administered to the side slope, especially relates to a stable prestressed anchorage cable frame roof beam device in adaptation strong morals and manners rock matter side slope.
Background
After a dam is built in reservoir engineering, mountain bodies on two sides are affected by excavation, the problem of slope stability is often involved, particularly, rock body weathering is further aggravated due to excavation, cracks are easily generated due to redistribution of loads in an original mountain body structure, the slope surface is sheared and deformed outwards, local slope instability is caused, and the possibility of deep sliding deformation is accompanied, so that the mountain body collapse danger is caused, and the safety of buildings such as peripheral dams, factory buildings and the like and people is endangered. The slope reinforcement measures adopted conventionally are not good in effect, the problem of mountain overall sliding cannot be solved by a single prestressed anchor cable, and the constraint effect of a single anchor cable in strongly weathered rock is not good enough. Therefore, it is necessary to provide a targeted slope treatment measure for the characteristics of the strongly weathered rock slope and the occurrence mechanism of slope instability.
Disclosure of Invention
The utility model aims at providing an adapt to stable prestressed anchorage cable frame lattice girder device in strong morals and manners rock matter side slope, this structure can solve mountain slope effectively and warp the destruction because of the further weathering that the excavation produced, and the trend of the outside further expansion of restraint side slope avoids the side slope to produce the danger that the crack collapses even, improves the stable security in side slope.
The purpose of the utility model is realized like this:
the utility model provides a stable prestressed anchorage cable sash roof beam device of adaptation strong morals and manners rock side slope, the characteristic is: including reinforced concrete frame beam structure and prestressed anchorage cable supporting construction, wherein: the reinforced concrete lattice beam structure consists of a plurality of continuous reinforced concrete beams which are arranged in a cross grid manner, and the reinforced concrete lattice beam structure is fixed on the slope surface of the excavated strongly weathered rock slope; the prestressed anchor cable supporting structure consists of a prestressed anchor cable, anchoring ends, anchor holes, a bearing steel plate and anchor cable heads, wherein an anchor hole extending into a weakly weathered rock layer is arranged at each grid intersection point of the reinforced concrete frame beam structure in a direction perpendicular to the slope surface; and filling and pouring cement mortar in the gap between the anchor hole and the prestressed anchor cable to be compact, and fixing the prestressed anchor cable and the weakly weathered rock stratum together by the cement mortar.
More than one prestressed anchor cable is arranged in each anchor hole, and each prestressed anchor cable consists of five steel strands with the diameter of 15.24 mm.
The section of the continuous reinforced concrete beam is a rectangle with the length of 0.6 multiplied by 0.6 m, and the grid interval is 3 multiplied by 3 m.
The length of the anchor hole extending into the weakly weathered rock stratum is not less than 10 meters, and the aperture is phi 130 mm.
The bearing steel plate is square, the length multiplied by the width multiplied by the thickness is 0.3 m multiplied by 0.02 m, and the diameter of a round hole in the middle of the bearing steel plate is phi 130 mm.
The utility model discloses a reinforced concrete frame beam structure and prestressed anchorage cable supporting construction, wherein: the reinforced concrete lattice beam structure consists of a plurality of continuous reinforced concrete beams which are arranged in a cross grid manner, and the reinforced concrete lattice beam structure is fixed on the slope surface of the excavated strongly weathered rock slope; the prestressed anchor cable supporting structure consists of a prestressed anchor cable, an anchoring end, an anchor hole, a bearing steel plate and an anchor cable head. The utility model adopts the structural form of the prestressed anchor cable and the reinforced concrete lattice beam structure, which can effectively solve the deformation and damage of the mountain slope caused by excavation and restrain the trend of further expansion of the slope, can improve the integrity and rigidity of the slope surface of the strongly weathered rock slope, can avoid integral instability caused by local cracks and landslide, strengthen the integrity of the mountain of the slope and ensure the integral stability of the slope; secondly, the anchor heads of the anchor cables are fixed on the reinforced concrete lattice beam structure, so that the anchor cables are more stable and durable compared with single anchor cables directly fixed on the strongly weathered rock slope, and the anchor cable force is ensured to be continuous and effective; thirdly, by connecting a plurality of anchor cables to form a whole, the resultant force of the plurality of anchor cables is fully exerted, and the whole effect and action of anchor cable support reinforcement are improved.
Therefore, the utility model discloses can combine reinforced concrete frame beam structure and prestressed anchorage cable supporting construction organic, can not only improve the effect of single anchor rope, the anchor of many anchor ropes of performance closes, can also strengthen the domatic wholeness to strong morals and manners rock matter side slope through reinforced concrete frame beam structure, ensures the side slope overall stability. As a permanent structure, the problem that a single anchor cable is poor in stability and reinforcement effect on the strongly weathered rock slope is effectively solved.
Drawings
Fig. 1 is a top view of the present invention;
FIG. 2 is a longitudinal cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of area B of FIG. 1;
FIG. 4 is a cross-sectional view taken at C-C of FIG. 3;
fig. 5 is a schematic cross-sectional view of a continuous reinforced concrete beam.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The utility model provides a stable prestressed anchorage cable sash beam device in adaptation strong morals and manners rock matter side slope, includes reinforced concrete sash beam structure 11 and prestressed anchorage cable supporting construction 12, wherein: the reinforced concrete lattice beam structure 11 consists of a plurality of continuous reinforced concrete beams 8 which are arranged in a cross grid manner, and the reinforced concrete lattice beam structure 11 is fixed on the slope surface 1 of the excavated strongly weathered rocky side slope; the prestressed anchor cable supporting structure 12 is composed of prestressed anchor cables 2, anchoring ends 3, anchor holes 4, supporting steel plates 6 and anchor cable heads 7, wherein an anchor hole 4 extending into a weak weathering rock stratum 10 is arranged at each grid intersection point 9 of a reinforced concrete frame beam structure 11 in a direction perpendicular to a slope surface 1, the end of the anchor hole 4 extending into the weak weathering rock stratum 10 is provided with the anchoring end 3, the supporting steel plates 6 are arranged on each grid intersection point 9 and at outward orifices of the anchor holes 4, the supporting steel plates 6 are fixed on a continuous reinforced concrete beam 8, a steel plate hole 13 is arranged in the middle of the supporting steel plates 6, the inward end of each prestressed anchor cable 2 arranged perpendicularly to the slope surface 1 and placed in the anchor hole 4 is fixed on the anchoring end 3, the outward end of each prestressed anchor cable 2 passing through the steel plate hole 13 outwards is locked by the anchor cable heads 7 for prestressed tensioning, the outward end of each prestressed anchor cable 2 is fixed on the reinforced concrete frame beam structure 11 through the supporting steel plates 6, the bearing steel plate 6 plays a role of a bayonet; and filling and pouring M35 cement mortar 5 into a gap between the anchor hole 4 and the prestressed anchor cable 2 to be compact, wherein the prestressed anchor cable 2 and the weakly weathered rock stratum 10 are fixed together by the cement mortar 5.
A prestressed anchor cable 2 is arranged in each anchor hole 4, and each prestressed anchor cable 2 is composed of five steel stranded wires with the diameter of 15.24 mm.
The section b of the continuous reinforced concrete beam 8 is a rectangle of 0.6 m × 0.6 m, and the grid interval a is 3 m × 3 m.
The length of the anchor hole 4 extending into the weakly weathered rock stratum 10 is not less than 10 meters, and the hole diameter is 130 mm.
The supporting steel plate 6 is square, the length x width x thickness is 0.3 x 0.02 m, and the diameter of the circular steel plate hole 13 in the middle of the supporting steel plate 6 is 130 mm.
Claims (5)
1. The utility model provides a stable prestressed anchorage cable sash roof beam device of adaptation strong morals and manners rock side slope which characterized in that: including reinforced concrete frame beam structure and prestressed anchorage cable supporting construction, wherein: the reinforced concrete lattice beam structure consists of a plurality of continuous reinforced concrete beams which are arranged in a cross grid manner, and the reinforced concrete lattice beam structure is fixed on the slope surface of the excavated strongly weathered rock slope; the prestressed anchor cable supporting structure consists of a prestressed anchor cable, anchoring ends, anchor holes, a bearing steel plate and anchor cable heads, wherein an anchor hole extending into a weakly weathered rock layer is arranged at each grid intersection point of the reinforced concrete frame beam structure in a direction perpendicular to the slope surface; and filling and pouring cement mortar in the gap between the anchor hole and the prestressed anchor cable to be compact, and fixing the prestressed anchor cable and the weakly weathered rock stratum together by the cement mortar.
2. The prestressed anchor cable lattice beam device adapted to strongly weathered rock slope stabilization according to claim 1, wherein: more than one prestressed anchor cable is arranged in each anchor hole, and each prestressed anchor cable consists of five steel strands with the diameter of 15.24 mm.
3. The prestressed anchor cable lattice beam device adapted to strongly weathered rock slope stabilization according to claim 1, wherein: the section of the continuous reinforced concrete beam is a rectangle with the length of 0.6 multiplied by 0.6 m, and the grid interval is 3 multiplied by 3 m.
4. The prestressed anchor cable lattice beam device adapted to strongly weathered rock slope stabilization according to claim 1, wherein: the length of the anchor hole extending into the weakly weathered rock stratum is not less than 10 meters, and the aperture is phi 130 mm.
5. The prestressed anchor cable lattice beam device adapted to strongly weathered rock slope stabilization according to claim 1, wherein: the bearing steel plate is square, the length multiplied by the width multiplied by the thickness is 0.3 m multiplied by 0.02 m, and the diameter of a round hole in the middle of the bearing steel plate is phi 130 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020441368.2U CN213653481U (en) | 2020-03-31 | 2020-03-31 | Prestressed anchor cable frame beam device suitable for stability of strongly weathered rock slope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020441368.2U CN213653481U (en) | 2020-03-31 | 2020-03-31 | Prestressed anchor cable frame beam device suitable for stability of strongly weathered rock slope |
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| CN213653481U true CN213653481U (en) | 2021-07-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254955A (en) * | 2020-03-31 | 2020-06-09 | 江西省水利规划设计研究院 | Prestressed anchor cable frame beam device suitable for stability of strongly weathered rock slope |
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2020
- 2020-03-31 CN CN202020441368.2U patent/CN213653481U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254955A (en) * | 2020-03-31 | 2020-06-09 | 江西省水利规划设计研究院 | Prestressed anchor cable frame beam device suitable for stability of strongly weathered rock slope |
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Address after: 330029 no.1038, Beijing East Road, Donghu District, Nanchang City, Jiangxi Province Patentee after: China Railway Water Resources and hydropower planning and Design Group Co.,Ltd. Address before: 330029 no.1038, Beijing East Road, Donghu District, Nanchang City, Jiangxi Province Patentee before: Jiangxi water conservancy planning and Design Institute Co.,Ltd. Address after: 330029 no.1038, Beijing East Road, Donghu District, Nanchang City, Jiangxi Province Patentee after: Jiangxi water conservancy planning and Design Institute Co.,Ltd. Address before: 330029 no.1038, Beijing East Road, Donghu District, Nanchang City, Jiangxi Province Patentee before: JIANGXI PROVINCIAL WATER CONSERVANCY PLANNING AND DESIGNING INSTITUTE |