CN114396060B - Giant dangerous rock mass steel wire rope binding structure - Google Patents
Giant dangerous rock mass steel wire rope binding structure Download PDFInfo
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- CN114396060B CN114396060B CN202210086794.2A CN202210086794A CN114396060B CN 114396060 B CN114396060 B CN 114396060B CN 202210086794 A CN202210086794 A CN 202210086794A CN 114396060 B CN114396060 B CN 114396060B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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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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- General Engineering & Computer Science (AREA)
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Abstract
The invention relates to the technical field of dangerous rock body remediation, and discloses a giant dangerous rock body steel wire rope binding structure, which comprises a steel wire rope bound on a giant dangerous rock body, wherein a crack is formed between the giant dangerous rock body and a stable parent rock, and an active protection net is arranged on the outer side wall of the giant dangerous rock body; the stable parent rock is provided with a plurality of anchoring holes, the inner ends of the steel wire ropes are anchored in the anchoring holes through grouting, and the outer ends of the steel wire ropes are provided with lap joint sections; the overlapping sections of the steel wire ropes are overlapped together, and the overlapping sections of the two steel wire ropes are fixedly connected through a plurality of rope clamps; the crack is filled with slurry to form a slurry layer, and the slurry layer seals the crack; through setting up initiative protection network, set up the anchor hole on stabilizing the mother rock, utilize the rope clamp to overlap joint fixedly with wire rope's overlap joint section, realize wire rope's binding operation, simple structure, and the work progress security is higher, has guaranteed the stability and the safety of huge danger rock mass in the renovation work progress.
Description
Technical Field
The invention relates to the technical field of dangerous rock body remediation, in particular to a giant dangerous rock body steel wire rope binding structure.
Background
Dangerous rock mass refers to unstable rock mass on high steep side slope or scarp under the actions of self gravity, earthquake, weathering, structural surface and the like. In mountain railways, particularly western mountain railways in China, dangerous rock bodies have become one of the main geological disasters threatening railway driving safety, while huge dangerous rock bodies (generally refer to volumes exceeding 10000m 3 Is a dangerous rock mass) and has larger safety hazard to railway driving due to high position and huge volume. Once the huge dangerous rock mass collapses, the impact energy is enough to make the original protective measures fail, the railway driving is interrupted by the light person, and the train is overturned or serious personnel injury is caused by the heavy person.
Currently, methods and means for remediating dangerous rock mass are limited, and can be divided into two types according to technical measures: active protection systems and passive protection systems. The active protection system aims at improving the stability of dangerous rock mass and preventing the dangerous rock mass from collapsing, and the main measures comprise blasting removal and in-situ reinforcement, wherein the in-situ reinforcement measures comprise anchoring, supporting, grouting, protection net, stone guiding net and the like. The passive protection system aims at setting a protection structure to intercept and prevent falling rocks from damaging a protection object, and the main measures comprise shed tunnels, stone blocking walls, falling rocks, flexible passive protection nets and the like.
In the prior art, for small dangerous rock mass, the two measures can be implemented, and the passive protective net measure is a main method for remedying the small dangerous rock mass due to low cost, short construction period and less construction limit. However, for huge dangerous rock mass, the current renovation method is only two, namely blasting cleaning and in-situ anchoring reinforcement.
In most cases, blasting cleaning cannot be performed due to the influence of existing railway line operation or other building structures below the dangerous rock body, and along with the development of anchoring technology, more and more huge dangerous rock bodies are reinforced by adopting an in-situ anchoring technology.
Because most of huge dangerous rock bodies are in an understable state, the increased load, particularly vibration impact load, during in-situ anchoring construction is extremely easy to induce the dangerous rock bodies to be overturned or slipped and damaged integrally, so that the failure of the whole dangerous rock body remediation engineering and the occurrence of large disaster accidents are caused. And before the large dangerous rock mass is renovated and constructed, the non-disturbance steel wire rope bundling is adopted, so that the stability of the large dangerous rock mass can be effectively ensured, and the safety guarantee is provided for the smooth implementation of the large dangerous rock mass renovation engineering.
Disclosure of Invention
The invention aims to provide a giant dangerous rock steel wire rope binding structure, which aims to solve the problem that the stability and safety of a giant dangerous rock cannot be effectively ensured in the prior art and provide safety guarantee for the smooth implementation of a giant dangerous rock remediation project.
The invention discloses a steel wire rope binding structure of a giant dangerous rock body, which comprises a steel wire rope bound on the giant dangerous rock body, wherein the giant dangerous rock body is provided with an inner side wall facing a stable parent rock and an outer side wall deviating from the stable parent rock, a crack is formed between the inner side wall of the giant dangerous rock body and the stable parent rock, and an active protection net is arranged on the outer side wall of the giant dangerous rock body;
the stable parent rock is provided with a plurality of anchoring holes, the plurality of anchoring holes are distributed outside two sides of the giant dangerous rock body, the inner end of the steel wire rope is anchored in the anchoring holes through grouting, and the outer end of the steel wire rope is provided with a lap joint section; the overlapping sections of the steel wire ropes are overlapped together, and the overlapping sections of the two steel wire ropes are fixedly connected through a plurality of rope clamps; and slurry is poured into the cracks to form a slurry layer, and the cracks are closed by the slurry layer.
Further, a plurality of sand bags are respectively stacked on two sides of the crack, the sand bags form sand bag walls, the sand bag walls plug the side edges of the crack, and the slurry layer is formed between the two sand bag walls;
the sand bag wall is provided with an inner side wall facing the inside of the crack, an isolation layer is paved on the inner side wall of the sand bag wall, the isolation layer extends to two sides of the sand bag wall, and the isolation layer is respectively positioned between the stable parent rock and the sand bag wall and between the inner side wall of the giant dangerous rock body and the sand bag wall.
Further, the distance between the anchoring hole and the side edge of the giant dangerous rock body is not smaller than 1m.
Further, the pretension of the steel wire rope is not less than two tons.
Further, after the lap joint section is fixed by the rope clamp, the exposed length of the tail end of the lap joint section is not less than 20cm.
Further, the rope clamp comprises an arc-shaped strip and a movable strip which are curved in an arc shape, the arc-shaped strip comprises a curved section and two straight strip sections, the upper ends of the two straight strip sections are respectively correspondingly butted at the end parts of the curved section, the lower ends of the straight strip sections are arranged in a downward extending mode, the curved section and the two straight strip sections are enclosed to form a clamping space with an opening at the lower end, the lap joint sections of the two steel wire ropes are arranged in the clamping space in a penetrating mode and are arranged in a vertically stacking mode, and the two straight strip sections are respectively clamped at two sides of the lap joint sections;
the movable strip stretches across the lower end opening of the clamping space, the lower ends of the two straight strip sections movably penetrate through the movable strip, the connecting section is connected with an adjusting head, the adjusting head is in threaded connection with the straight strip sections, and the adjusting head is abutted against the movable strip from bottom to top; the movable strip is driven to move towards the bending section by rotating the adjusting head, and the bending section and the movable strip vertically clamp the two lap joint sections.
Further, the adjusting head is a hexagonal nut, a limiting cylinder is sleeved outside the hexagonal nut, a limiting hole with an opening at the upper end and in a hexagonal shape is formed in the limiting cylinder, a hook strip is connected to the limiting cylinder, the hook strip extends upwards, and a hook is arranged on the hook strip; a limiting plate which moves up and down along the limiting cylinder and is in a hexagonal shape is arranged in the limiting hole, and a spring is arranged between the limiting plate and the bottom of the limiting hole;
the limiting cylinder is sleeved outside the adjusting head from bottom to top, the outer side wall of the adjusting head is in butt joint with the inner side wall of the limiting hole, the bottom of the adjusting head is propped against the limiting plate to drive the limiting plate to move downwards, the spring is compressed, and the hook of the hook strip is clamped on the lap joint section from top to bottom.
Further, a limiting ring which moves up and down along the straight strip section is sleeved on the straight strip section, the limiting ring is positioned between the two lap joint sections, and the limiting ring is provided with an inner side wall facing the clamping space; the upper part of the inner side wall of the limiting ring is provided with an upward arranged upper arc-shaped wall which is abutted against the outer side of the lap joint section above the limiting ring from bottom to top; the upper part of the inner side wall of the limiting ring is provided with a lower arc-shaped wall which is downwards arranged, and the lower arc-shaped wall is abutted to the outer side of the lap joint section below the limiting ring from top to bottom.
Compared with the prior art, the giant dangerous rock steel wire rope binding structure provided by the invention has the advantages that the active protective net is arranged on the outer side wall of the giant dangerous rock, the anchoring hole is arranged on the stable parent rock, the inner end of the steel wire rope is anchored in the anchoring hole, the lap joint section of the steel wire rope is lapped and fixed by the rope clamp, the binding operation of the steel wire rope is realized, the crack between the giant dangerous rock and the stable parent rock is sealed by grouting, the whole structure is simple, and the safety of the construction process is higher.
Drawings
FIG. 1 is a schematic front view of a giant dangerous rock mass steel wire rope after being bundled;
FIG. 2 is a schematic side view of the giant dangerous rock mass steel wire rope after being bundled;
FIG. 3 is a schematic front view of the rope clip according to the present invention after being engaged with a wire rope;
FIG. 4 is a schematic cross-sectional view of a restraining canister mated with an adjustment head provided by the present invention;
FIG. 5 is a schematic front view of a confinement ring provided by the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The implementation of the present invention will be described in detail below with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-5, a preferred embodiment of the present invention is provided.
The steel wire rope binding structure of the huge dangerous rock body comprises a steel wire rope 101 bound on the huge dangerous rock body 100, wherein the huge dangerous rock body 100 is provided with an inner side wall facing to the stable parent rock 200 and an outer side wall facing away from the stable parent rock 200, a crack 102 is formed between the inner side wall of the huge dangerous rock body 100 and the stable parent rock 200, and an active protection net is arranged on the outer side wall of the huge dangerous rock body 100; the active protection net can eliminate construction safety risks caused by falling of the small dangerous rock bodies with loose surfaces of the huge dangerous rock bodies 100.
The stable parent rock 200 is provided with a plurality of anchoring holes, the plurality of anchoring holes are distributed outside two sides of the giant dangerous rock body 100, the inner end of the steel wire rope 101 is anchored in the anchoring holes through grouting, and the outer end of the steel wire rope 101 is provided with a lap joint section; the overlapping sections of the steel wire ropes 101 are overlapped together, and the overlapping sections of the two steel wire ropes 101 are fixedly connected through a plurality of rope clamps; the crack 102 is filled with slurry to form a slurry layer, and the slurry layer seals the crack 102.
According to the giant dangerous rock steel wire rope binding structure, the active protection net is arranged on the outer side wall of the giant dangerous rock 100, the anchoring hole is formed in the stable parent rock 200, the inner end of the steel wire rope 101 is anchored in the anchoring hole, the lap joint section of the steel wire rope 101 is lapped and fixed by the rope clamp, the binding operation of the steel wire rope 101 is achieved, the crack 102 between the giant dangerous rock 100 and the stable parent rock 200 is sealed by grouting, the whole structure is simple, and the safety of the construction process is high.
In the actual construction process, the construction can be carried out according to the following construction steps:
1) An active protection net is arranged on the outer side wall of the huge dangerous rock mass 100;
2) Setting a plurality of anchoring holes on the stable parent rock 200, and anchoring the inner end of the steel wire rope 101 in the anchoring holes through grouting;
3) Constructing a temporary scaffold which extends along the height direction of the giant dangerous rock body 100, wherein the temporary scaffold can be used as a subsequent construction platform;
4) After the slurry in the anchoring hole reaches the design strength, binding the steel wire ropes 101 on the giant dangerous rock body 100, arranging the steel wire ropes 101 around the outer side wall of the giant dangerous rock body 100, overlapping the overlapping sections of the two steel wire ropes 101 together, and fixedly connecting the overlapping sections of the two steel wire ropes 101 through a plurality of rope clamps; the crack 102 is provided with a section to be grouting corresponding to the part of the huge dangerous rock mass 100 where the steel wire rope 101 is bound;
5) Grouting the section to be grouting of the crack 102, and sealing the section to be grouting;
6) Repeating the construction step 4) and the construction step 5) until the steel wire rope 101 is bound at the set height of the huge dangerous rock mass 100.
In this embodiment, before grouting the slurry layer, both sides of the crack 102 are sealed, so as to avoid slurry overflowing from both sides of the crack 102 during grouting.
Specifically, a plurality of sand bags are respectively stacked on two sides of the crack 102, the sand bags form sand bag walls, the sand bag walls seal the side edges of the crack 102, and a slurry layer is formed between the two sand bag walls; the sand bag wall has the inside wall towards crack 102 inside, and the inside wall of sand bag wall lays the isolation layer, and the isolation layer extends to the both sides of sand bag wall, lies in respectively between stable parent rock 200 and the sand bag wall to and lie in between huge danger rock mass 100's inside wall and the sand bag wall.
Because the inner side wall of the huge dangerous rock mass 100 and the stable parent rock 200 have irregular shapes, the two sides of the crack 102 are sealed by the sand bags, and a better sealing effect can be realized.
Utilize the isolation layer to shelter from the inside wall and the both sides of sand bag wall, after crack 102 slip casting, the inside of crack 102 is full of the thick liquid, and the thick liquid can not directly contact with the sand bag wall, reaches the design intensity after the thick liquid, is convenient for dismantle the sand bag wall.
Alternatively, as other embodiments, inflatable bladders may be used to close both sides of the slit 102
In this embodiment, the distance between the anchoring hole and the side of the huge dangerous rock mass 100 is not less than 1m, and the rock mass where the anchoring hole is provided must be complete, so that the stability of the steel wire rope 101 after binding is ensured.
Before the steel wire rope 101 is fixedly lapped by the rope clamp, the pretension of the steel wire rope 101 is larger than the set tension, in general, the pretension of the steel wire rope 101 is not smaller than two tons, and after the slurry in the anchoring hole reaches 80% of the design strength, the steel wire rope 101 can be tensioned and bound.
After the lap joint section is fixed by the rope clamp, the exposed length of the tail end of the lap joint section is not less than 20cm. In general, the length of the lap joint section is not shorter than three meters (when the diameter of the steel wire rope is 60 mm), a plurality of rope clamps can be used for clamping and fixing, and the distance between the adjacent rope clamps is not less than 36cm.
In this embodiment, the rope clip includes an arc-shaped strip and a moving strip 400, the arc-shaped strip includes a curved section 301 and two straight strip sections 302, the upper ends of the two straight strip sections 302 are respectively correspondingly butted at the ends of the curved section 301, the lower ends of the straight strip sections 302 are arranged in a downward extending manner, and the curved section 301 and the two straight strip sections 302 enclose a clamping space with an opening at the lower end.
The movable bar 400 spans the lower end opening of the clamping space, the lower ends of the two straight bar sections 302 movably penetrate the clamping space, the connecting section is connected with the adjusting head 500, the adjusting head 500 is in threaded connection with the straight bar sections 302, in this way, the adjusting head 500 can move up and down along the straight bar sections 302 by rotating the adjusting head 500, when the adjusting head 500 corresponds upwards, the movable bar 400 is driven to move towards the bending section 301, the height of the clamping space is reduced, and the adjusting head 500 abuts against the movable bar 400 from bottom to top.
The lap joint sections of the two steel wire ropes 101 penetrate through the clamping space, the two lap joint sections are arranged in a vertically stacked mode, and the two straight strip sections 302 are respectively clamped at two sides of the two lap joint sections; by rotating the adjusting head 500, the moving bar 400 is driven to move towards the bending section 301, and the bending section 301 and the moving bar 400 clamp the two overlapping sections up and down until the clamping force of the bending section 301 and the moving bar 400 on the two overlapping sections is greater than a set value.
Along with the movement of the rotating adjusting head 500, the adjusting head 500 drives the moving bar 400 to move towards the bending section 301, so that the height of the clamping space is shortened, and the force for clamping the two overlapping sections of the bending section 301 and the moving bar 400 in opposite directions is continuously increased until the two overlapping sections are firmly clamped.
In this embodiment, the adjusting head 500 is a hexagonal nut, a limiting cylinder 704 is sleeved outside the hexagonal nut, a limiting hole with an opening at the upper end and a hexagonal shape is arranged in the limiting cylinder 704, a hook strip 700 is connected to the limiting cylinder 704, the hook strip 700 extends upwards, and a hook 701 is arranged on the hook strip 700; a limiting plate 702 which moves up and down along the limiting cylinder 704 and is in a hexagonal shape is arranged in the limiting hole, and a spring 703 is arranged between the limiting plate 702 and the bottom of the limiting hole;
when the adjusting head 500 rotates upward to the set position, the limiting cylinder 704 is sleeved outside the adjusting head 500 from bottom to top, and the outer side wall of the adjusting head 500 is abutted with the inner side wall of the limiting cylinder 704, so that the rotation of the adjusting head 500 is limited. The bottom of the adjusting head 500 is pressed against the limiting plate 702, the limiting plate 702 is driven to move downwards, the spring 703 is compressed, and the hook 701 of the hook strip 700 is clamped on the lap joint section from top to bottom.
When the adjusting head 500 rotates to the set position and the adjusting head 500 rotates loose during the subsequent use, the clamping force between the two overlapping sections is reduced, so that the problem of unstable binding of the steel wire rope 101 occurs.
To avoid this phenomenon, by disposing the regulating cylinder 704, first, the rotation of the regulating head 500 is regulated by the regulating head 500 being inside the regulating cylinder 704, cooperating with the regulating hole; secondly, the spring 703 is compressively deformed, and the drive limiting plate 702 is pressed upwards against the bottom of the adjustment head 500, further limiting the downward movement of the adjustment head 500; furthermore, the hooks 701 on the hook strip 700 are used for relatively and fixedly arranging the limiting cylinder 704 and the lap joint section, so that the position of the limiting cylinder 704 is ensured to be stable.
In this embodiment, a limiting ring 600 moving up and down along the straight section 302 is sleeved on the straight section 302, the limiting ring 600 is located between the two overlapping sections, the limiting ring 600 has an inner side wall facing the clamping space, an upper arc wall 601 arranged upwards is arranged on the upper portion of the inner side wall of the limiting ring 600, and a lower arc wall 602 arranged downwards is arranged on the upper portion of the inner side wall of the limiting ring 600;
when the adjustment head 500 is rotated upward to the set position, the upper arc wall 601 abuts the outer side of the lap joint section above the confinement rings 600 from bottom to top, and the lower arc wall 602 abuts the outer side of the lap joint section below the confinement rings 600 from top to bottom.
Because wire rope 101 is circular, in order to avoid the bigger dislocation removal appears between the overlap joint section of mutual stacking butt, in this embodiment, except the both sides of overlap joint section are being held through two straight sections 302 to, through setting up restriction ring 600, along with adjusting head 500 in the adjustment process, restriction ring 600 can remove along straight section 302, be in between two overlap joint sections all the time, utilize the butt of upper arc wall 601 to wire rope 101 above restriction ring 600, utilize the butt of lower arc wall 602 to wire rope 101 below restriction ring 600 to, restricted wire rope 101 towards the phenomenon of side dislocation removal.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (5)
1. The steel wire rope binding structure of the huge dangerous rock body is characterized by comprising a steel wire rope bound on the huge dangerous rock body, wherein the huge dangerous rock body is provided with an inner side wall facing to the stable parent rock and an outer side wall deviating from the stable parent rock, a crack is formed between the inner side wall of the huge dangerous rock body and the stable parent rock, and an active protection net is arranged on the outer side wall of the huge dangerous rock body;
the stable parent rock is provided with a plurality of anchoring holes, the plurality of anchoring holes are distributed outside two sides of the giant dangerous rock body, the inner end of the steel wire rope is anchored in the anchoring holes through grouting, and the outer end of the steel wire rope is provided with a lap joint section; the overlapping sections of the steel wire ropes are overlapped together, and the overlapping sections of the two steel wire ropes are fixedly connected through a plurality of rope clamps; the crack is internally filled with slurry to form a slurry layer, and the slurry layer seals the crack;
a plurality of sand bags are respectively stacked on two sides of the crack, the sand bags form sand bag walls, the sand bag walls plug the side edges of the crack, and the slurry layer is formed between the two sand bag walls;
the sand bag wall is provided with an inner side wall facing the inside of the crack, an isolation layer is paved on the inner side wall of the sand bag wall, extends to two sides of the sand bag wall, and is respectively positioned between the stable parent rock and the sand bag wall and between the inner side wall of the giant dangerous rock body and the sand bag wall;
the rope clamp comprises an arc-shaped strip and a movable strip, wherein the arc-shaped strip comprises a bending section and two straight strip sections, the upper ends of the two straight strip sections are correspondingly butted at the end parts of the bending section respectively, the lower ends of the straight strip sections are arranged in a downward extending mode, the bending section and the two straight strip sections are enclosed to form a clamping space with an opening at the lower end, the lap joint sections of the two steel wire ropes are arranged in the clamping space in a penetrating mode and are stacked up and down, and the two straight strip sections are clamped at two sides of the lap joint sections respectively;
the movable strip stretches across the lower end opening of the clamping space, the lower ends of the two straight strip sections movably penetrate through the movable strip, the straight strip sections are connected with adjusting heads, the adjusting heads are in threaded connection with the straight strip sections, and the adjusting heads are abutted against the movable strip from bottom to top; the adjusting head is rotated to drive the moving strip to move towards the bending section, and the bending section and the moving strip vertically clamp the two lap joint sections;
the adjusting head is a hexagonal nut, a limiting cylinder is sleeved outside the hexagonal nut, a limiting hole with an opening at the upper end and in a hexagonal shape is formed in the limiting cylinder, a hook strip is connected to the limiting cylinder, the hook strip extends upwards, and a hook is arranged on the hook strip; a limiting plate which moves up and down along the limiting cylinder and is in a hexagonal shape is arranged in the limiting hole, and a spring is arranged between the limiting plate and the bottom of the limiting hole;
the limiting cylinder is sleeved outside the adjusting head from bottom to top, the outer side wall of the adjusting head is in butt joint with the inner side wall of the limiting hole, the bottom of the adjusting head is propped against the limiting plate to drive the limiting plate to move downwards, the spring is compressed, and the hook of the hook strip is clamped on the lap joint section from top to bottom.
2. The giant dangerous rock steel wire rope tying structure of claim 1, wherein the distance between the anchoring hole and the side of the giant dangerous rock is not less than 1m.
3. The giant dangerous rock mass steel wire rope tying structure of claim 1, wherein the pretension of the steel wire rope is not less than two tons.
4. The giant dangerous rock mass steel wire rope tying structure of claim 1, wherein the exposed length of the tail end of the lap joint section is not less than 20cm after the lap joint section is fixed by a rope clip.
5. The giant dangerous rock mass steel wire rope binding structure of claim 1, wherein the straight strip section is sleeved with a limiting ring which moves up and down along the straight strip section, the limiting ring is positioned between the two overlapping sections, and the limiting ring is provided with an inner side wall facing the clamping space; the upper part of the inner side wall of the limiting ring is provided with an upward arranged upper arc-shaped wall which is abutted against the outer side of the lap joint section above the limiting ring from bottom to top; the upper part of the inner side wall of the limiting ring is provided with a lower arc-shaped wall which is downwards arranged, and the lower arc-shaped wall is abutted to the outer side of the lap joint section below the limiting ring from top to bottom.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111332680A (en) * | 2018-12-18 | 2020-06-26 | 韩亮 | Roller locking device for power roller line |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH111912A (en) * | 1997-06-10 | 1999-01-06 | Tokyo Seiko Co Ltd | Prevention method for falling of huge stone and rock, and its equipment |
| CN2802185Y (en) * | 2005-02-03 | 2006-08-02 | 陆明路 | Anti-slip rope fastening |
| CN104563142B (en) * | 2015-01-05 | 2016-04-06 | 中国电建集团成都勘测设计研究院有限公司 | Large-scale toppling unstable rock body associating safeguard structure and administering method |
| CN105672240B (en) * | 2016-01-25 | 2017-06-27 | 黄河勘测规划设计有限公司 | Inclining destruction type Dangerous Rock Body administering method |
| CN111535340A (en) * | 2020-05-09 | 2020-08-14 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队 | Method for treating dangerous rock mass above ancient building |
| CN111927863B (en) * | 2020-08-20 | 2022-04-01 | 海盐汇联通用配件有限公司 | Double-nut anti-loosening bolt group |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111332680A (en) * | 2018-12-18 | 2020-06-26 | 韩亮 | Roller locking device for power roller line |
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