CN111044374B - Anchor rod drawing test platform with adjustable size - Google Patents
Anchor rod drawing test platform with adjustable size Download PDFInfo
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- CN111044374B CN111044374B CN202010004735.7A CN202010004735A CN111044374B CN 111044374 B CN111044374 B CN 111044374B CN 202010004735 A CN202010004735 A CN 202010004735A CN 111044374 B CN111044374 B CN 111044374B
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- 238000012360 testing method Methods 0.000 title claims abstract description 60
- 238000002474 experimental method Methods 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 238000003860 storage Methods 0.000 claims description 19
- 239000003921 oil Substances 0.000 claims description 17
- 239000010720 hydraulic oil Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 13
- 238000004873 anchoring Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 description 10
- 238000005096 rolling process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0244—Tests performed "in situ" or after "in situ" use
- G01N2203/0246—Special simulation of "in situ" conditions, scale models or dummies
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an anchor rod drawing test platform with adjustable size, and belongs to the field of mine engineering. The device comprises a platform main body, wherein supporting feet and universal wheels are arranged at the bottom of the platform main body; the platform main body is provided with a multi-specification similar geologic body forming box; the multi-specification similar geologic body forming box can adjust the box length and width of the multi-specification similar geologic body forming box according to test requirements for pouring similar models; the multi-specification similar geologic body forming box utilizes worm and worm gear transmission to convey the test body out of the box body of the multi-specification similar geologic body forming box; the device also comprises an anchor rod drawing experiment box and a model cleaning device. The invention belongs to non-electric control equipment, and has low cost; the pure mechanical structure design is simple and safe to operate; the anchor rod drawing test of different anchoring lengths can be carried out by forming similar geologic body blocks with different specifications, and the test body can be conveniently and rapidly taken out for the next experiment.
Description
Technical Field
The invention relates to the technical field of mine engineering, in particular to an anchor rod drawing test platform with adjustable size.
Background
The anchor bolt support technology has the advantages of reinforcing rock mass, reducing dead weight of a structure, saving engineering materials and the like, has gradually developed into a main technical means for preventing and controlling geological disasters in recent years, and is widely applied to the geotechnical engineering fields such as side slopes, foundation pits, tunnels and the like. In practical engineering, the damage of the anchor rod anchoring system has complexity and concealment, so that the anchor rod anchoring strength testing technology needs to be studied more deeply.
However, the on-site detection is often affected by environmental conditions and uncertain factors, so that the detection test is difficult to develop, and the anchoring strength of the anchor rod is difficult to accurately grasp. The simulation test of similar materials is always a main method for mine engineering research, and the essence of the simulation test is that materials with similar mechanical properties to a model are contracted into a test model according to a certain proportion of similarity (principle) on a test platform.
The engineering environment is different, the research object is different, the selected similarity ratio is different, and the size of the model to be formulated is different. And most of anchor rod test platforms are basically processed and temporarily built at present, so that the size cannot be effectively adjusted, and different requirements are met. Therefore, the development of a drawing test platform with adjustable size, simple and reasonable structure and capability of carrying out drawing test is imperative by applying discipline knowledge such as similar theory and mechanical design.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a drawing test platform for an anchor rod with adjustable size, which can develop drawing tests for anchor rod anchoring systems with different size requirements. The test platform is mainly used for testing the anchoring strength of the anchor rod, can form similar models with multiple specifications to develop anchor rod drawing tests of models with different sizes, and solves the problems that the existing anchor rod drawing test is low in efficiency and not convenient enough.
In order to solve the problems, the invention provides an anchor rod drawing test platform with adjustable size, which comprises a platform main body and is characterized in that: the bottom of the platform main body is provided with supporting feet and universal wheels, the universal wheels are used for moving the platform main body, and the supporting feet are used for fixing the platform main body to prevent movement in working; when the concrete is formed, the supporting legs are rotated to enable the supporting legs to be grounded so as to improve the bearing capacity of the test platform and ensure that the test platform cannot move; when the test platform needs to be moved, the supporting legs are rotated in the direction to enable the test platform to be separated from the ground, and meanwhile, the universal wheels touch the ground to enable the platform main body to be freely moved;
the platform main body is provided with a multi-specification similar geologic body forming box; the multi-specification similar geologic body forming box can be used for adjusting the box length and the box width of the multi-specification similar geologic body forming box according to test requirements so as to pour similar models; the multi-specification similar geologic body forming box utilizes worm and worm gear transmission to convey the test body out of the box body of the multi-specification similar geologic body forming box;
The multi-specification similar geologic body forming box comprises a concrete forming box bottom plate, side plates, a movable door frame, an end plate and a box door which are positioned at the bottom of the platform main body; the end plate is arranged at one end of the platform main body and can slide along the short side of the platform main body;
The movable door frame is provided with a guide rail; the guide rail is arranged along the long shaft of the movable door frame; the side plate is positioned on one side of the platform main body and is connected with the end plate, and the end plate can move in a driven manner when the side plate moves; the side plates can slide along the short sides of the platform main body and the guide rails to adjust the width of the multi-specification similar geologic body forming box, and the sliding direction of the side plates is parallel to the plane of the end plate;
The movable door frame can move back and forth along the horizontal direction of the end plate;
The door is also provided with 2 limit bolts, wherein one limit bolt is used for fixing the movable door frame, and the other limit bolt is used for fixing the side plate; the box door is hinged on the movable door frame and moves along with the movable door frame; the box door is positioned on the opposite surface of the end plate, and the other end plate surface of the box door is used as the plate surface of the multi-specification similar geologic body forming box when the box door is closed to adjust the length of the multi-specification similar geologic body forming box;
The device is also provided with a slotted plate and 2 slotted plate fixing frames; the slotted plate is formed by splicing a plurality of sections of plates by using splicing bolts; one of the slotted plate fixing frames is fixed at the center of the end plate and used for fixing one end of the slotted plate, and the slotted plate fixing frame can be adjusted and moved on the end plate along the long axis of the end plate; the other grooved plate fixing frame is arranged on the box door and used for fixing the other end of the grooved plate, and the grooved plate fixing frame can be adjusted and moved on the box door along the long axis of the box door.
As a preferable scheme, the platform main body is also provided with an anchor rod drawing experiment box; the anchor rod drawing experiment box is positioned at the front end of the side face of the multi-specification similar geologic body forming box and is used for carrying out an anchor rod drawing experiment;
The anchor rod drawing experiment box comprises a storage box and an equipment working platform; a drawing experiment instrument for testing the stress condition on the anchor rod is arranged in the storage box, and comprises a manual pump, a hydraulic oil cylinder and an oil delivery pipe; implanting an anchor rod into a multi-specification similar geologic body forming box, wherein the anchor rod is connected to a manual pump, a hydraulic oil cylinder and an oil delivery pipe to achieve the purpose of drawing experiments;
The manual pump is fixed at the top of the storage box, and the equipment working platform is fixed at the same side of the storage box; when the anchor rod drawing experiment box performs drawing experiments, the drawing experiment instrument is taken out from the storage cabinet, a manual pump oil delivery interface of the manual pump is connected with the hydraulic oil cylinder through an oil delivery pipe, hydraulic pressure is provided by pressing a manual pump pressing rod of the manual pump, and the hydraulic pressure is gradually increased until the anchor rod is broken; the equipment working platform is fixed at the rear of the multi-specification similar geologic body forming box and is used for placing a computer and experimental instruments; the computer can record the data tested by the drawing tester and analyze the data.
Further, the platform main body is also provided with a model cleaning device; the model cleaning device is positioned at the bottom of the multi-specification similar geologic body forming box and is used for taking out the tested similar models;
The model cleaning device comprises a worm wheel, a worm, a reduction gearbox, a rotary hand wheel and a square roller; the square rollers are linearly arrayed at 40cm intervals and are arranged at the bottom of the platform forming box body; the rotating hand wheel is connected with a worm through a reduction gearbox, and the worm is connected with a square gear through a worm wheel; the rotation of the rotating hand wheel is primary power which is the original driving of the model cleaning device; the reduction gearbox, the worm and the worm wheel are driven by the rotating hand wheel and are converted into secondary power after being driven by the rotating hand wheel; when the test body is cleaned, the square rolling shaft is driven by the secondary power to directly convey the geologic body blocks out of the multi-specification similar geologic body forming box.
Further, the maximum length of the multi-specification similar geologic body forming box is 2000mm; the length of the slotted plate is adapted to the length of the molding box; and the installation height of the slotted plate is adjusted on the slotted plate fixing frame according to the change of the installation vacancy so as to obtain the slot depth of the multi-specification similar geologic body forming box of 200mm.
The working principle and working process of the invention are as follows:
According to the multi-specification concrete forming box, the side plates and the movable door frame of the multi-specification concrete forming box can be adjusted according to test requirements, so that the length and the width of the forming box are determined, and the multi-specification concrete forming box is used for pouring similar models; the anchor rod drawing experiment box is positioned at the front end of the side face of the box body and is used for carrying out drawing experiments; model cleaning device, experimental cleaning device are located the bottom half for take out the similar model after the experiment.
The supporting legs and the universal wheels are arranged at the bottom of the anchor rod drawing test platform, the universal wheels are used for moving the test machine, and the supporting legs are used for fixing devices to prevent movement in working. When the anchor rod drawing test platform forms concrete, the supporting legs are rotated to enable the supporting legs to be grounded, so that the bearing capacity of equipment is improved, and the equipment is ensured not to move; when the equipment needs to be moved, the supporting legs are rotated to enable the equipment to be separated from the ground, and meanwhile, the universal wheels touch the ground, so that the equipment can move freely.
The bottom plate of the concrete forming box and the machine body are fixed; the side plates can slide along the shaft guide rails on the machine body and the movable door frame (the width of the forming box is adjusted, and the sliding direction is parallel to the plane of the end plate); the side plates are connected to the end plates, so that the end plates can move in a driven manner when the side plates move; the movable door frame can move along the normal direction of the end plate (the limit bolts are used for fixing the movable door frame, and the corresponding limit bolts are arranged on the side plates), the door is hinged on the movable door frame, when the movable door frame moves, the door moves along with the movable door frame, and when the door is closed, the door is used as the other end plate of the forming box (the length of the forming box is adjusted).
The grooved plate fixing frame is fixed on the end plate and is used for fixing the grooved plate, and the grooved plate fixing frame is also arranged on the box door; the slotted plate fixing frame can be adjusted and moved left and right on the end plate and the box door, the slotted plate is formed by splicing a plurality of sections of plates by using splicing bolts, and can adapt to forming boxes with different lengths, and the installation height of the slotted plate fixing frame can be changed according to installation vacancies so as to obtain different slot depths.
After the size of the anchor rod drawing test platform is adjusted, concrete slurry is injected into the box, and after the height is repeatedly smoothed and determined, the concrete slurry is solidified and molded to obtain a similar model. According to the requirement of the test, the similar model is provided with grooves, and the grooved plates are installed in advance.
The anchor rod drawing experiment box is used for carrying out a drawing experiment of the anchor rod. And an anchor rod is implanted into the concrete groove, and the experimental purpose is achieved by connecting devices such as a manual pump, a hydraulic oil cylinder, an oil delivery pipe and the like. The anchor rod drawing experiment box comprises a manual pump, a storage box and an equipment working platform. The storage box is internally provided with a manual pump, a hydraulic cylinder, an oil delivery pipe and other testers, the manual pump is fixed at the top of the storage box, and the equipment working platform is fixed on the side surface of the same-side forming box. When the anchor rod drawing experiment box is used for drawing experiments, the drawing experiment instrument is taken out from the storage cabinet, hydraulic pressure is provided by pressing the manual rod, the manual pump oil delivery interface is connected with the hydraulic oil cylinder through the oil delivery pipe, and the hydraulic pressure is gradually increased until the anchor rod is broken.
The equipment working platform is fixed at the rear of the forming box and used for placing equipment such as a computer, an experimental instrument and the like. Provides a good experimental environment, which is no different from the common drawing test.
The model cleaning device comprises a worm wheel, a worm, a reduction gearbox, a rotary hand wheel and a square roller. The square rolling shafts of the model cleaning device are linearly arrayed at a certain interval and are arranged at the bottom of the platform forming box body, the rotating hand wheel is connected with the worm through the reduction gearbox, and the worm is connected with the square gear through the worm wheel. When the test body is cleaned, the hand wheel is rotated, the rotation of the hand wheel is transmitted through the reduction gearbox, the worm and the worm wheel drive the square rolling shaft to rotate, and the similar models are directly transported out of the forming box when the square rolling shaft rotates.
The invention has the advantages and beneficial effects as follows:
The equipment is non-electric control equipment, and the cost is low; the pure mechanical structure design is simple and safe to operate; the equipment can be used for forming various specifications of molded products and meets different test requirements.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic view of a model cleaning device according to an embodiment of the present invention;
FIG. 3 is a schematic drawing of a drawing experiment structure according to an embodiment of the present invention;
In the figure: 1. a platform body; 2. a side plate; 3. slotted plate fixing frame; 4. an end plate; 5. a computer; 6. moving a door frame; 7. a door; 8. a guide rail; 9. a manual pump pressing rod; 10. square roller; 11. a universal wheel; 12. supporting feet; 13. a worm wheel; 14. a worm; 15. a concrete forming box bottom plate; 16. a limit bolt; 17. a reduction gearbox; 18. rotating a hand wheel; 19. an oil delivery interface of the manual pump; 20. and storing the box.
Detailed Description
The invention is further described in detail below with reference to the drawings and specific examples.
As shown in the drawings, the size-adjustable anchor rod drawing test platform comprises: a multi-specification concrete forming box, the side plates 2 and the movable door frame 6 of which can be adjusted according to test requirements, and further the length 2000mm and the width 500mm of the forming box are determined to obtain a similar model (in the embodiment, a concrete block); the anchor rod drawing experiment box is positioned on the side surface of the box body and is used for carrying out drawing experiments; the model cleaning device is positioned at the bottom of the box body and is used for taking out the similar model after the test.
Support legs 12 and universal wheels 11 are installed at the bottom of the size-adjustable anchor rod drawing test platform, the universal wheels 11 are used for moving the test machine, and the support legs 12 are used for fixing devices and prevent movement in working.
When the size-adjustable anchor rod drawing test platform is used for forming concrete, the supporting legs 12 are rotated, so that the supporting legs 12 are grounded, the bearing capacity of equipment is improved, and the equipment is ensured not to move; when the equipment needs to be moved, the supporting leg 12 is rotated to be separated from the ground, and meanwhile, the universal wheel 11 touches the ground, so that the equipment can move freely.
The size-adjustable anchor rod drawing test platform comprises a platform main body 1, side plates 2, a slotted plate fixing frame 3, end plates 4, a movable door frame 6, a box door 7, guide rails 8, universal wheels 11, supporting legs 12, a box bottom plate 15 and limiting bolts 16. As shown in fig. 1, the concrete forming tank bottom plate 15 and the platform main body 1 are fixed; the side plates 2 can slide along the guide rails 8 on the platform main body 1 and the movable door frame 6 (the width of the forming box is adjusted, and the sliding direction is parallel to the plane of the end plates); the side plate 2 is connected with the end plate 4, so that the end plate 4 can move in a driven manner when the side plate 2 moves; the movable door frame 6 can move along the normal direction of the end plate 4 (the limit bolts 16 are used for fixing the movable door frame 6, and the corresponding limit bolts 16 are arranged on the side plates 2), the door 7 is hinged on the movable door frame 6, the door 7 moves along with the movable door frame 6 when the movable door frame 6 moves, and the door is used as the other end plate of the forming box when the door is closed (the length of the forming box is adjusted).
The slotted plate fixing frame 3 of the size-adjustable anchor rod drawing test platform is fixed on the end plate 4 and is used for fixing the slotted plate, and the slotted plate fixing frame 3 is also arranged on the box door 7; the grooved plate fixing frame 3 can move left and right on the end plate 4 and the box door 7 in an adjusting way and is fixed in the center of the end plate; the slotted plate is formed by splicing a plurality of sections of plates by splicing bolts, is suitable for a forming box with the length of 2000mm, and is provided with a slotted plate fixing frame 3 with a variable mounting height according to the mounting vacancy so as to obtain the slot depth of 200 mm.
After the size of the anchor rod drawing test platform with adjustable size is adjusted, concrete slurry is injected into the box, and after the height of 400mm is repeatedly smoothed and determined, the similar model can be obtained after the anchor rod drawing test platform is solidified and molded.
The anchor rod drawing experiment box is used for carrying out a drawing experiment of the anchor rod. And an anchor rod is implanted into the concrete groove, and the experimental purpose is achieved by connecting devices such as a manual pump, a hydraulic oil cylinder, an oil delivery pipe and the like.
The anchor rod drawing experiment box comprises a manual pump 9, a storage box 20 and an equipment working platform. The storage box 20 can be internally provided with a manual pump, a hydraulic cylinder, an oil delivery pipe and other testers, the manual pump 9 is fixed at the top of the storage box, and the equipment working platform is fixed at the same side of the storage box.
When the anchor rod drawing experiment box is used for drawing experiments, the drawing experiment instrument is taken out from the storage box 20, hydraulic pressure is provided by pressing the manual rod, the oil delivery interface of the manual pump 19 is connected with the hydraulic oil cylinder through the oil delivery pipe, and the hydraulic pressure is gradually increased until the anchor rod is broken.
The equipment working platform is fixed at the rear of the forming box and is used for placing equipment such as a computer 5, an experimental instrument and the like. Provides a good experimental environment.
The model cleaning device comprises a worm wheel 13, a worm 14, a reduction gearbox 17, a rotary hand wheel 18 and a square roller 10.
The square rolling shafts 10 of the model cleaning device are linearly arrayed at 40cm intervals and are arranged at the bottom of a platform forming box body, a rotating hand wheel is connected with a worm 14 through a reduction gearbox 17, and the worm 14 is connected with the square rolling shafts 10 through worm wheels 13. When the test body is cleaned, the hand wheel 18 is rotated, and the rotation of the hand wheel 18 drives the square roller 10 to rotate after being transmitted by the reduction gearbox 17, the worm 14 and the worm wheel 13, and the square roller is directly used for conveying the similar model out of the forming box when the square roller rotates.
Although embodiments of the present invention have been described in detail above, one of ordinary skill in the art will appreciate that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (2)
1. The utility model provides a stock drawing test platform with adjustable size, includes platform main part (1), its characterized in that: the bottom of the platform main body (1) is provided with supporting feet (12) and universal wheels (11), the universal wheels (11) are used for moving the platform main body (1), and the supporting feet (12) are used for fixing the platform main body (1) so as to prevent movement in working; when the concrete is formed, the supporting legs (12) are rotated to enable the supporting legs (12) to be grounded so as to improve the bearing capacity of the test platform and ensure that the test platform cannot move; when the test platform needs to be moved, the supporting legs (12) are rotated to be separated from the ground, and meanwhile, the universal wheels (11) touch the ground to enable the platform main body (1) to move freely;
the platform main body (1) is provided with a multi-specification similar geologic body forming box; the multi-specification similar geologic body forming box can be used for adjusting the box length and the box width of the multi-specification similar geologic body forming box according to test requirements so as to pour similar models; the multi-specification similar geologic body forming box utilizes worm and worm gear transmission to convey the test body out of the box body of the multi-specification similar geologic body forming box;
the multi-specification similar geologic body forming box comprises a concrete forming box bottom plate (15), side plates (2), a movable door frame (6), end plates (4) and a box door (7) which are positioned at the bottom of a platform main body (1); the end plate (4) is arranged at one end of the platform main body (1) and can slide along the short side of the platform main body (1);
A guide rail (8) is arranged on the movable door frame (6); the guide rail (8) is arranged along the long axis of the movable door frame (6); the side plate (2) is positioned on one side of the platform main body (1) and is connected with the end plate (4), and the end plate (4) can move in a driven manner when the side plate (2) moves; the side plates (2) can slide along the short sides of the platform main body (1) and the guide rails (8) to adjust the width of the multi-specification similar geologic body forming box, and the sliding direction of the side plates (2) is parallel to the plane of the end plates (4);
The movable door frame (6) can move back and forth along the horizontal direction of the end plate (4);
The door is also provided with 2 limit bolts (16), wherein one limit bolt (16) is used for fixing the movable door frame (6), and the other limit bolt (16) is used for fixing the side plate (2); the box door (7) is hinged on the movable door frame (6) and moves along with the movable door frame (6); the box door (7) is positioned on the opposite surface of the end plate (4), and the other end plate surface of the box door (7) is used as the plate surface of the multi-specification similar geologic body forming box when the box door is closed to adjust the length of the multi-specification similar geologic body forming box;
The device is also provided with a slotted plate and 2 slotted plate fixing frames (3); the slotted plate is formed by splicing a plurality of sections of plates by using splicing bolts; one of the slotted plate fixing frames (3) is fixed at the center of the end plate (4) and used for fixing one end of the slotted plate, and the slotted plate fixing frames (3) can be adjusted and moved on the end plate (4) along the long axis of the end plate (4); the other grooved plate fixing frame (3) is arranged on the box door (7) and used for fixing the other end of the grooved plate, and the grooved plate fixing frame (3) can be adjusted and moved on the box door (7) along the long axis of the box door (7);
The maximum length of the multi-specification similar geologic body forming box is 2000mm; the length of the slotted plate is adapted to the length of the molding box; and the installation height of the slotted plate is adjusted on the slotted plate fixing frame (3) according to the change of the installation vacancy so as to obtain the slot depth of 200mm of the multi-specification similar geologic body forming box.
2. A size adjustable bolt pull test bench according to claim 1, comprising a bench body (1), characterized in that: an anchor rod drawing experiment box is also arranged on the platform main body (1); the anchor rod drawing experiment box is positioned at the front end of the side face of the multi-specification similar geologic body forming box and is used for carrying out an anchor rod drawing experiment;
The anchor rod drawing experiment box comprises a storage box (20) and an equipment working platform; a drawing experiment instrument for testing the stress condition on the anchor rod is arranged in the storage box (20), and the drawing experiment instrument comprises a manual pump, a hydraulic oil cylinder and an oil delivery pipe; implanting an anchor rod into a multi-specification similar geologic body forming box, wherein the anchor rod is connected to a manual pump, a hydraulic oil cylinder and an oil delivery pipe to achieve the purpose of drawing experiments;
The manual pump is fixed at the top of the storage box (20), and the equipment working platform is fixed at the same side of the storage box (20); when the anchor rod drawing experiment box performs drawing experiments, the drawing experiment instrument is taken out from the storage box (20), a manual pump oil delivery interface (19) of the manual pump is connected with the hydraulic oil cylinder through an oil delivery pipe, and hydraulic pressure is provided by pressing a manual pump pressing rod (9) of the manual pump, so that the hydraulic pressure is gradually increased until the anchor rod is broken; the equipment working platform is fixed at the rear of the multi-specification similar geologic body forming box and is used for placing a computer (5) and experimental instruments; the computer (5) can record the data tested by the pull-out tester and analyze the data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010004735.7A CN111044374B (en) | 2020-01-03 | 2020-01-03 | Anchor rod drawing test platform with adjustable size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010004735.7A CN111044374B (en) | 2020-01-03 | 2020-01-03 | Anchor rod drawing test platform with adjustable size |
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| Publication Number | Publication Date |
|---|---|
| CN111044374A CN111044374A (en) | 2020-04-21 |
| CN111044374B true CN111044374B (en) | 2024-05-03 |
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| CN202010004735.7A Active CN111044374B (en) | 2020-01-03 | 2020-01-03 | Anchor rod drawing test platform with adjustable size |
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| CN112577833B (en) * | 2020-12-29 | 2023-03-24 | 哈尔滨工业大学 | Multilayer reinforced soil drawing tester suitable for coarse-grained filler of cold region roadbed |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070099281A (en) * | 2006-04-04 | 2007-10-09 | (주)대우건설 | Experimental device for drawing supporting force of underground anchor |
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