CN216955072U - Impact test steel frame platform for slope flexible protective net system - Google Patents
Impact test steel frame platform for slope flexible protective net system Download PDFInfo
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Abstract
The utility model discloses a side slope flexible protective net system impact test steel frame platform which comprises a steel frame structure used for installing a flexible protective net, wherein the steel frame structure is a three-dimensional space stable structure, and the flexible protective net is transversely unfolded and installed on the steel frame structure. The utility model can avoid the large instantaneous tensile stress and the crack of the structural body caused by the peak pulse tension, has good stress state and is not easy to tip over.
Description
Technical Field
The utility model belongs to the technical field of slope protection, and particularly relates to a steel frame platform for a slope impact test of a flexible protective net system.
Background
China is a country with many mountains, particularly mountainous areas in the west and the southeast, various geological disasters frequently occur, in addition, the population is large, the breadth of workers is large, the construction and development of various projects inevitably bring a large amount of slope geological disasters, the slope governing project problem is increasing day by day, and the slope governing project is particularly prominent along the project lines of railways, roads, hydropower stations, mines and the like. The side slope flexible protection net system is increasingly applied to side slope disaster management due to industrial production and combined installation. In order to effectively and systematically detect the quality of the slope flexible protection system and provide a manufacturer with technical support for improving and optimizing configuration, an impact test platform of the slope flexible protection system needs to be constructed. The side slope flexible protection system mainly comprises steel members, and the side slope flexible protection net is mainly composed of a diamond-shaped steel wire rope net, an annular net, a high-strength steel wire grating net, a twisted hexagonal net and the like. The slope flexible protection system can be mainly divided into the following systems: 1. the slope flexible protective net is covered on the slope with potential slope geological disasters in a fixing mode of a steel wire rope anchor rod or a steel bar anchor rod and a supporting rope, so that an active protection system for reinforcing the slope or limiting the movement range of rockfall is realized; 2. the side slope flexible protective net is arranged on the slope surface at a certain angle by adopting fixing modes such as anchor rods, steel columns, supporting ropes, anchor pulling ropes and the like to form a stone blocking net in a fence form, so that a passive protection system for blocking falling rocks and the like is realized; 3. the side slope flexible protective net is paved and hung on a slope surface with potential slope surface geological disasters by adopting anchor rods, steel columns, supporting ropes, anchor pulling ropes and other components, so that falling rocks are controlled to move within a certain range, and the damage of the falling rocks is eliminated; 4. the flexible safety protection system can prevent solid matters, accumulated snow, bank slope washing, blasting flying stones, falling objects and other hazards in various mud-rock fluids. The impact test of the side slope flexible protection network system can simulate the impact action on the side slope flexible protection system under the conditions of rock falling by rolling, rock falling by collapsing, rock flying by blasting, falling objects in high altitude and the like, and truly reflects the impact deformation resistance and the protection effect of the protection engineering of the side slope flexible protection system.
At present, when a slope flexible protective net system impact test is carried out, protective nets are mostly installed on a concrete wall body, namely, a slope flexible protective net system impact test platform is the concrete wall body. Although the mode has good compressive strength, the tensile strength is low, and the wall body is easy to crack; in the test, the pull rope structure of the protective net forms tensile stress, so the concrete wall body needs high strength to resist the generated tensile stress, and the wall body is pulled to crack. In addition, after concrete is poured, the defects of uneven shrinkage, fine cracks or intermediate holes and the like are easy to occur, and uncontrollable performance and potential safety hazards are brought to the test process.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide the side slope flexible protective net system impact test steel frame platform which can avoid the problems that the instantaneous tensile stress is large, the peak pulse tensile force pulls the structural body to crack, has a good stress state and is not easy to tip over.
In order to realize the purpose, the utility model adopts the technical scheme that: a steel frame platform for a slope flexible protective net system impact test comprises a steel frame structure used for mounting a flexible protective net, wherein the steel frame structure is a three-dimensional space stable structure, and the flexible protective net is transversely unfolded and mounted on the steel frame structure.
Further, the three-dimensional space stabilization structure comprises a flexible protective net supporting part and a fixed supporting part, and the flexible protective net supporting part is arranged on the fixed supporting part.
Further, the flexible protection net support part includes:
a plurality of parallel cones;
and a support frame on which the cone is placed;
and the support frame is fixed with a flexible protective net by utilizing the fixing piece and the fixing piece arranged on the conical body in a matching way.
Furthermore, the supporting frame is a transverse supporting frame, a plurality of beams are arranged in the transverse supporting frame, and a plurality of triangular structures or polygonal structures are formed in the frame.
Furthermore, the fixed supporting part is a fixed supporting frame which comprises a plurality of upright posts, inclined pull beams are arranged between the upright posts, and a plurality of triangular structures or polygonal structures are formed in the fixed supporting frame; the fixed support frame is arranged on the installation foundation.
Further, the transverse supporting frame comprises a front upper-layer beam, a front lower-layer beam, a rear beam and front and rear beam connecting rods; the fixed supporting part comprises a front upright post, a rear upright post and front and rear upright post connecting rods;
the front upper-layer cross beam, the front lower-layer cross beam and the rear cross beam are parallel to each other to form a triangular prism structure; a plurality of front upright posts are arranged at intervals to fixedly support the front upper-layer cross beam and the front lower-layer cross beam, the front upper-layer cross beam and the front lower-layer cross beam are connected by the upper parts of the front upright posts, and the lower parts of the front upright posts are used as supporting points; a plurality of rear upright posts are arranged at intervals to fixedly support the front upper-layer cross beam and the rear cross beam, the front upper-layer cross beam and the rear cross beam are connected by the upper parts of the rear upright posts, and the lower parts of the rear upright posts are used as supporting points; the front lower-layer cross beam and the rear cross beam are connected through a front beam connecting rod and a rear beam connecting rod, the front beam connecting rod and the rear beam connecting rod are arranged at the positions corresponding to each group of the front upright post and the rear upright post, one end of the front beam connecting rod and one end of the rear beam connecting rod are connected at the connecting point of the front upright post and the front lower-layer cross beam, and the other end of the front beam connecting rod and the other end of the rear beam connecting rod are connected at the connecting point of the rear upright post and the rear cross beam, so that a stable triangular structure is formed between the front upright post and the rear upright post;
and a plurality of parallel protective net steel columns are arranged on the front upper-layer cross beam or the front lower-layer cross beam at intervals forwards, and the flexible protective net is unfolded and supported by the protective net steel columns. On the steel structure test frame, through setting up the position and the number of front portion crossbeam, can realize one deck, two layers or multilayer protection network system mounting structure, the benefit of installation like this can select the mounting height according to the protection network system of different energy levels.
The front and rear upright post connecting rods are obliquely connected with the front upright post and the rear upright post.
Further, a lower layer hook is arranged on the front lower layer beam, and/or an upper layer hook is arranged on the front upper layer beam.
The transverse support frame further comprises two-end reinforcing structures, two ends of the front upper-layer cross beam, the front lower-layer cross beam and the rear cross beam which are parallel to each other to form a triangular prism structure are respectively provided with the two-end reinforcing structures, and the two-end reinforcing structures comprise side reinforcing beams and side reinforcing pull rods;
the side reinforcing beam supports and reinforces the end part of the upper horizontal beam and is fixedly connected with the end parts of the front upper beam and the front lower beam;
and the side reinforcing pull rod is used for supporting and reinforcing the front lower-layer beam and is connected with the end part of the front lower-layer beam and the front upright post.
Furthermore, an upright column inclined pull beam is arranged between two adjacent front upright columns and is used for supporting and reinforcing the two adjacent front upright columns;
a diagonal draw beam support rod is arranged between the vertical column diagonal draw beam and the rear vertical column and is used for supporting and reinforcing the front vertical column and the rear vertical column;
and an upper-layer reinforcing beam and a lower-layer reinforcing beam are arranged between the front upper-layer cross beam and the front lower-layer cross beam and are used for supporting and reinforcing the front upper-layer cross beam and the front lower-layer cross beam.
Further, the conical body comprises two top front supporting beams and two top rear supporting beams, the top ends of the two top front supporting beams and the top ends of the two top rear supporting beams are connected with each other, and the bottom ends of the two top front supporting beams and the two top rear supporting beams extend towards the periphery below to form the conical body; the bottom ends of the two top front supporting beams are fixed on the front upper-layer cross beam, and the two top rear supporting beams are fixed on the rear cross beam;
and a top hook is arranged at the connecting vertex of the two top front support beams and the two top rear support beams of the conical body.
The beneficial effects of the technical scheme are as follows:
the steel frame structure provided by the utility model has a good stress state and is not easy to tip over in the process of impacting the flexible protective net by falling rocks above the steel frame structure.
The steel frame structure provided by the utility model can avoid the situation that the structure body is cracked by large instant tensile stress and spike pulse tension, and is suitable for the flexible protective net under the condition of large impact force facing the falling rocks above.
The steel frame structure provided by the utility model is stable in installation, cannot topple under tensile stress and has firm stability.
The steel frame structure provided by the utility model has the advantages of easy quality control and longer service life.
Compared with the existing concrete wall, the steel frame structure provided by the utility model has the advantages that the influence of materials on the environment is small, the materials can be recycled, the environmental friendliness is good, and the visual shielding is less.
Drawings
FIG. 1 is a schematic front view of a steel frame structure according to an embodiment of the present invention;
FIG. 2 is a side view of a steel frame structure according to an embodiment of the present invention;
fig. 3 is a schematic side view of a steel frame structure with a flexible protective screening mounting structure according to an embodiment of the present invention;
FIG. 4 is a schematic perspective view of a steel frame structure with a flexible protective net attached thereto according to an embodiment of the present invention;
wherein, 1 is a front upper-layer beam, 2 is a front lower-layer beam, 3 is a rear beam, 4 is a front-rear beam connecting rod, 5 is a front upright, 6 is a rear upright, 7 is a protective net steel column, 8 is a lower-layer hook, and 9 is a pull-down anchor rope; 10 is a front and rear upright post connecting rod, 11 is a side reinforcing beam, 12 is a side reinforcing pull rod, 13 is an upright post inclined pull beam, 14 is an inclined pull beam support rod, 15 is a top front supporting beam, 16 is a top rear supporting beam, 17 is a top hook, 18 is an upper pulling anchor rope, 19 is an upper layer reinforcing beam and a lower layer reinforcing beam, and 20 is a flexible protective net.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described below with reference to the accompanying drawings.
In this embodiment, a steel frame platform for a slope flexible protective net system impact test comprises a steel frame structure for installing flexible protective nets 20, the steel frame structure is a three-dimensional space stable structure, and the flexible protective nets 20 are transversely unfolded and installed on the steel frame structure.
As an optimization 1 of the above embodiment, as shown in fig. 1 to 4, the three-dimensional space stabilization structure includes a flexible protection net support portion and a fixed support portion, and the flexible protection net support portion is disposed on the fixed support portion.
Preferably, the flexible protection net support part includes:
a plurality of parallel cones; the cone body can be composed of a plurality of triangular units or polygonal units;
and a support frame on which the cone is placed;
the flexible protective net 20 is fixed on the supporting frame by the fixing piece and the fixing piece arranged on the conical body.
Preferably, the supporting frame is a transverse supporting frame, a plurality of beams are arranged in the transverse supporting frame, and a plurality of triangular structures or polygonal structures are formed in the frame.
Preferably, the fixed supporting part is a fixed supporting frame, the fixed supporting frame comprises a plurality of upright posts, inclined tension beams are arranged between the upright posts, and a plurality of triangular structures or polygonal structures are formed in the fixed supporting frame; the fixed support frame is arranged on the installation foundation.
As an optimized solution 2 of the above embodiment, the lateral support frame includes a front upper-layer beam 1, a front lower-layer beam 2, a rear beam 3, and a front-rear beam connecting rod 4; the fixed supporting part comprises a front upright post 5, a rear upright post 6 and a front and rear upright post connecting rod 10;
the front upper-layer cross beam 1, the front lower-layer cross beam 2 and the rear cross beam 3 are parallel to each other to form a triangular prism structure; a plurality of front upright posts 5 are arranged at intervals to fixedly support the front upper-layer cross beam 1 and the front lower-layer cross beam 2, the front upper-layer cross beam 1 and the front lower-layer cross beam 2 are connected by the upper parts of the front upright posts 5, and the lower parts of the front upright posts 5 are used as supporting points; a plurality of rear upright posts 6 are arranged at intervals to fixedly support the front upper-layer cross beam 1 and the rear cross beam 3, the front upper-layer cross beam 1 and the rear cross beam 3 are connected by the upper parts of the rear upright posts 6, and the lower parts of the rear upright posts 6 are used as supporting points; the front lower-layer cross beam 2 and the rear cross beam 3 are connected by a front beam connecting rod and a rear beam connecting rod 4, the front beam connecting rod and the rear beam connecting rod 4 are arranged at the positions corresponding to each group of the front upright post 5 and the rear upright post 6, one end of the front beam connecting rod and one end of the rear beam connecting rod 4 are connected at the connecting point of the front upright post 5 and the front lower-layer cross beam 2, and the other end of the front beam connecting rod and the other end of the rear beam connecting rod 4 are connected at the connecting point of the rear upright post 6 and the rear cross beam 3, so that a stable triangular structure is formed between the front upright post 5 and the rear upright post 6;
a plurality of parallel protective net steel columns 7 are arranged forwards on the front upper-layer cross beam 1 or the front lower-layer cross beam 2 at intervals, and the flexible protective net 20 is unfolded and supported by the protective net steel columns 7. On the steel structure test frame, through setting up the position and the number of front portion crossbeam, can realize one deck, two layers or multilayer protection network system mounting structure, the benefit of installation like this can select the mounting height according to the protection network system of different energy levels.
The front and rear upright connecting rods 10 are obliquely connected with the front upright 5 and the rear upright 6.
As an optimized solution 2 of the above embodiment, a lower layer hook 8 is arranged on the front lower layer beam 2, and a pull-down anchor rope 9 of the flexible protective net 20 is fixed by the lower layer hook 8.
And/or an upper layer hook is arranged on the front upper layer beam 1. The upper layer hook can be used for fixing the upper and lower anchor ropes of the flexible protective net arranged on the protective net upright post base on the front upper layer beam 1.
And a lower-layer hook 8 can be arranged on the front lower-layer beam 2, and the lower-layer hook 8 is used for fixing upper and lower pull anchor ropes of a flexible protective net with a protective net steel column arranged on the lower-layer beam 2.
As an optimization scheme 3 of the above embodiment, as shown in fig. 1, the transverse support frame further includes two-end reinforcing structures, two ends of the triangular prism structure formed by the front upper-layer beam 1, the front lower-layer beam 2, and the rear beam 3 in parallel are respectively provided with two-end reinforcing structures, and each two-end reinforcing structure includes a side reinforcing beam 11 and a side reinforcing pull rod 12;
the side reinforcing beam 11 supports and reinforces the end part of the upper horizontal beam and is fixedly connected with the end parts of the front upper beam 1 and the front lower beam 2;
and the side reinforcing pull rods 12 are used for supporting and reinforcing the front lower-layer cross beam 2 and are connected with the end part of the front lower-layer cross beam 2 and the front upright post 5.
Preferably, in order to strengthen the stability, an upright diagonal tension beam 13 is arranged between two adjacent front uprights 5;
a diagonal draw beam brace 14 is arranged between the column diagonal draw beam 13 and the rear column 6;
and an upper-layer reinforcing beam 19 and a lower-layer reinforcing beam 19 are arranged between the front upper-layer cross beam 1 and the front lower-layer cross beam 2 and are used for supporting and reinforcing the front upper-layer cross beam 1 and the front lower-layer cross beam 2.
As an optimization scheme 3 of the above embodiment, as shown in fig. 1, the conical body includes two top front beams 15 and two top rear beams 16, top ends of the two top front beams 15 and the two top rear beams 16 are connected to each other, and a bottom end of the two top front beams 15 and the bottom end of the two top rear beams 16 extend downward and around to form the conical body; the bottom ends of the two top front supporting beams 15 are fixed on the front upper-layer cross beam 1, and the two top rear supporting beams 16 are fixed on the rear cross beam 3;
a top hook 17 is arranged at the connecting vertex of the two top front support beams 15 and the two top rear support beams 16 of the conical body, and an upper pull anchor rope 18 of a flexible protective net 20 is fixed by the top hook 17.
In the use process, the installation personnel climb up the steel frame structure and then install the flexible protective net 20.
A plurality of parallel protective net steel columns 7 on the front upper-layer cross beam 1 or the front lower-layer cross beam 2 are used for unfolding and supporting a flexible protective net 20; an upper pull anchor rope 18 of the flexible protective net 20 is fixed by a top hook 17; a lower-layer hook 8 is used for fixing a pull-down anchor rope 9 of the flexible protective net 20; therefore, the installation of the flexible protective net 20 is completed, the flexible protective net 20 is fixedly supported on a test foundation by using a steel frame structure, the detection equipment is installed on the steel frame structure, and the impact data of falling rocks above the detection equipment on the flexible protective net 20 is monitored.
After the protective net is installed, hoisting equipment (such as a crane, a ground travelling crane and a tower crane) is used for hoisting a falling test hammer (also weighing objects) to a required height, then releasing the falling hammer, judging whether the protective net blocks falling rocks or not, and judging the grade of the protective net according to the standard. Monitoring the stress condition of the steel wire rope in the test process of the protective net by using a force sensor, and recording the whole test process by using a high-speed camera; and the comprehensive monitoring host is utilized to collect, record and analyze the measured data.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a slope flexible protective net system impact test steelframe platform which characterized in that, including the steelframe structure that is used for installing flexible protection network (20), the steelframe structure is three-dimensional space stable structure, and flexible protection network (20) transversely expand to install on the steelframe structure.
2. The impact test steel frame platform for the slope flexible protective net system according to claim 1, wherein the three-dimensional space stabilizing structure comprises a flexible protective net supporting part and a fixed supporting part, and the flexible protective net supporting part is arranged on the fixed supporting part.
3. The steel frame platform for the impact test of the slope flexible protective net system according to claim 2, wherein the flexible protective net supporting part comprises:
a plurality of parallel cones;
and a support frame on which the cone is placed;
the supporting frame is installed by utilizing the fixing piece and the fixing piece arranged on the conical body to match and fix the flexible protective net (20).
4. The impact test steel frame platform of the slope flexible protective screening system according to claim 3, characterized in that the supporting frame is a transverse supporting frame, a plurality of beams are arranged in the transverse supporting frame, and a plurality of triangular structures or polygonal structures with more than three sides are formed in the frame.
5. The impact test steel frame platform of the slope flexible protective screening system according to claim 2, characterized in that the fixed supporting part is a fixed supporting frame, the fixed supporting frame comprises a plurality of upright posts, inclined tension beams are arranged between the upright posts, and a plurality of triangular structures or polygonal structures with more than three sides are formed inside the fixed supporting frame; the fixed support frame is arranged on the installation foundation.
6. The impact test steel frame platform of the side slope flexible protective screening system according to claim 4, characterized in that the transverse supporting frame comprises a front upper beam (1), a front lower beam (2), a rear beam (3) and front and rear beam connecting rods (4); the fixed supporting part comprises a front upright post (5), a rear upright post (6) and a front and rear upright post connecting rod (10);
the front upper-layer cross beam (1), the front lower-layer cross beam (2) and the rear cross beam (3) are parallel to each other to form a triangular prism structure; a plurality of front upright posts (5) are arranged at intervals to fixedly support the front upper-layer cross beam (1) and the front lower-layer cross beam (2), the front upper-layer cross beam (1) and the front lower-layer cross beam (2) are connected by the upper parts of the front upright posts (5), and the lower parts of the front upright posts (5) are used as supporting points; a plurality of rear upright posts (6) are arranged at intervals to fixedly support the front upper-layer beam (1) and the rear beam (3), the front upper-layer beam (1) and the rear beam (3) are connected by the upper parts of the rear upright posts (6), and the lower parts of the rear upright posts (6) are used as supporting points; the front lower-layer cross beam (2) and the rear cross beam (3) are connected through a front beam connecting rod and a rear beam connecting rod (4), the front beam connecting rod and the rear beam connecting rod (4) are arranged at the positions corresponding to each group of front upright columns (5) and rear upright columns (6), one end of each front beam connecting rod (4) is connected to the connecting point of the front upright column (5) and the front lower-layer cross beam (2), the other end of each front beam connecting rod (4) is connected to the connecting point of the rear upright column (6) and the rear cross beam (3), and a stable triangular structure is formed between the front upright columns (5) and the rear upright columns (6);
a plurality of parallel protective net steel columns (7) are arranged on the front upper-layer cross beam (1) or the front lower-layer cross beam (2) at intervals forwards, and a flexible protective net (20) is unfolded and supported by the protective net steel columns (7);
the front and rear upright post connecting rods (10) are obliquely connected with the front upright post (5) and the rear upright post (6).
7. A side slope flexible protective net system impact test steel frame platform according to claim 6, characterized in that a lower layer hook (8) is arranged on the front lower layer beam (2), and/or an upper layer hook is arranged on the front upper layer beam (1).
8. The impact test steel frame platform of the slope flexible protective screening system according to claim 6, characterized in that the transverse supporting frame further comprises two-end reinforcing structures, two ends of the triangular prism structure formed by the front upper-layer beam (1), the front lower-layer beam (2) and the rear beam (3) which are parallel to each other are respectively provided with two-end reinforcing structures, and the two-end reinforcing structures comprise side reinforcing beams (11) and side reinforcing pull rods (12);
the side reinforcing beam (11) supports and reinforces the end part of the upper horizontal beam and is fixedly connected with the end parts of the front upper beam (1) and the front lower beam (2);
and the side reinforcing pull rod (12) is used for supporting and reinforcing the front lower-layer cross beam (2) and is connected with the end part of the front lower-layer cross beam (2) and the front upright post (5).
9. The impact test steel frame platform of the slope flexible protective screening system according to claim 6, characterized in that a column diagonal tension beam (13) is arranged between two adjacent front columns (5);
an inclined straining beam brace rod (14) is arranged between the upright inclined straining beam (13) and the rear upright (6);
an upper-layer reinforcing beam (19) and a lower-layer reinforcing beam (19) are arranged between the front upper-layer beam (1) and the front lower-layer beam (2).
10. The impact test steel frame platform of the slope flexible protective net system according to any one of claims 3, 4 and 6-9, characterized in that the conical body comprises two top front supporting beams (15) and two top rear supporting beams (16), the top ends of the two top front supporting beams (15) and the two top rear supporting beams (16) are connected with each other, and the bottom ends of the two top front supporting beams and the two top rear supporting beams extend downwards and around to form the conical body; the bottom ends of the two top front supporting beams (15) are fixed on the front upper-layer cross beam (1), and the two top rear supporting beams (16) are fixed on the rear cross beam (3);
and a top hook (17) is arranged at the connecting vertex of the two top front supporting beams (15) and the two top rear supporting beams (16) of the conical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220527363.0U CN216955072U (en) | 2022-03-11 | 2022-03-11 | Impact test steel frame platform for slope flexible protective net system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220527363.0U CN216955072U (en) | 2022-03-11 | 2022-03-11 | Impact test steel frame platform for slope flexible protective net system |
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| CN216955072U true CN216955072U (en) | 2022-07-12 |
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| CN202220527363.0U Active CN216955072U (en) | 2022-03-11 | 2022-03-11 | Impact test steel frame platform for slope flexible protective net system |
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| Country | Link |
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| CN (1) | CN216955072U (en) |
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2022
- 2022-03-11 CN CN202220527363.0U patent/CN216955072U/en active Active
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