CN117491154A - Tunnel local component static test loading device based on reinforcement gabion - Google Patents
Tunnel local component static test loading device based on reinforcement gabion Download PDFInfo
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- CN117491154A CN117491154A CN202311633626.1A CN202311633626A CN117491154A CN 117491154 A CN117491154 A CN 117491154A CN 202311633626 A CN202311633626 A CN 202311633626A CN 117491154 A CN117491154 A CN 117491154A
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- 230000002787 reinforcement Effects 0.000 title claims description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
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- 229910000831 Steel Inorganic materials 0.000 claims description 150
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- 239000004575 stone Substances 0.000 claims description 17
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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
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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
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- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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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
- G01N2203/0019—Compressive
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Abstract
The invention discloses a tunnel local component static test loading device based on a reinforced gabion, which belongs to the technical field of tunnel test loading devices, wherein two ends of the reinforced gabion form inclined planes which incline inwards; the upper side of the reinforced broken gabion component is provided with a plurality of loading plates, the loading plates are sequentially arranged along the upper surface of the reinforced broken gabion, the bending radian of the loading plates is consistent with the curvature of the reinforced broken gabion component, and the back side of each loading plate is connected to the reaction frame through a jack. The invention provides a static test loading device for a local tunnel component constructed by a reinforced crushed gabion for the first time in China, which can reflect the actual stress condition of the tunnel component, thereby reducing the manufacturing cost and improving the test efficiency, and can simulate the stress condition of partial surrounding rock and component when in "void".
Description
Technical Field
The invention belongs to the technical field of tunnel test loading devices, and particularly relates to a tunnel local component static test loading device based on a reinforced gabion.
Background
With the great development of traffic industry and the increasing demands of people for traveling, more and more tunnels are developed towards large sections. The test is an important method for researching the loading mechanical property of the tunnel, and the full-loop full-scale test has the problems of high operation difficulty, high cost and the like. In the prior art, similar experimental principles are mostly adopted to carry out model tests on large-section tunnels, and the problems of complex procedures, high cost, difficult practical operability and the like exist, so that the application range of the large-section tunnels is severely limited, and the large-section tunnels are not beneficial to further research on the mechanical properties of different tunnel structures. There are also few previous attempts to reflect the tunnel loading mechanical properties by measuring the tunnel member load bearing capacity, mainly using bracket members loaded from both sides. Because the filling stones in the reinforced gabion are discrete mediums, the stress and force transmission mechanism of the reinforced gabion is different from that of a concrete structure, and the loading mode of the traditional concrete lining structure cannot be simply sleeved. It should be noted that no research has been made on a loading device for tunnel components based on gabions.
Disclosure of Invention
Therefore, the invention aims to provide a tunnel local component static test loading device based on a reinforced gabion, which can reflect the actual stress condition of the tunnel component.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention discloses a tunnel local component static test loading device based on a reinforced broken gabion, which comprises a left steel plate, a right steel plate, a front steel plate and a rear steel plate which are encircled to be rectangular, wherein fixed hinge supports are arranged on the opposite sides of the left steel plate and the right steel plate, the fixed hinge supports are connected with steel base plates, reinforced broken gabion components are arranged between the two steel base plates, the reinforced broken gabion components are arched, inclined planes which incline inwards are formed at the two ends of the reinforced broken gabion components, the left side surface and the right side surface of the reinforced broken gabion components are respectively abutted with the two steel base plates, and the front side surface and the rear side surface of the reinforced broken gabion components are respectively abutted with the front steel plate and the rear steel plate; the utility model discloses a garrulous gabion of reinforcing bar, garrulous gabion component's upside is provided with a plurality of loading boards, the loading board sets gradually along the garrulous gabion of reinforcing bar's upper surface, the crooked radian of loading board is unanimous with the camber of reinforcing bar gabion component, and the dorsal part of every loading board is connected to the reaction frame through the jack.
Further, the I-steel is connected to the two ends of the reaction frame through bolts and backing plates, the I-steel is fixedly connected with the left steel plate or the right steel plate, a reaction steel plate is obliquely arranged at the joint between the reaction frame and the I-steel, and part of the jack is arranged on the reaction steel plate.
Further, a rubber pad is arranged between the steel backing plate and the reinforced stone crushing cage component.
Further, the broken gabion component of reinforcing bar includes the steel reinforcement cage body, sets up the rubble piece in the steel reinforcement cage body, installs the reinforcing bar lid in steel reinforcement cage body opening part, the thickness of steel reinforcement gabion component can be adjusted in order to vertical displacement to the reinforcing bar lid.
Further, the steel reinforcement cage body includes a plurality of vertical bars of even interval arrangement, will vertical bar links together horizontal bar and vertical bar, the steel bar lid includes horizontal arc muscle group and the vertical arc muscle group that a plurality of violently indulge the setting in between, horizontal arc muscle group includes two horizontal arc muscle that set up adjacently, and two horizontal arc muscle interval forms the interval that is used for vertical bar to pass through, vertical arc muscle group includes two vertical arc muscle that set up adjacently, and two vertical arc muscle interval forms the interval that is used for vertical bar to pass through, the vertical horizontal bar of passing through of steel bar lid is spacing with vertical bar.
Further, an outer cylinder is fixed on the outer side of the reinforcement cage body, a pull rope is arranged in the center of the outer cylinder, a supporting plate is fixed at the upper end of the outer cylinder, the upper end of the pull rope penetrates out of a guide hole formed in the supporting plate and then is connected to a sliding block, the sliding block is in sliding fit with the outer cylinder, the lower end of the sliding block is fixedly connected to an end head, two ends of the end head are respectively hinged to a first clamping jaw and a second clamping jaw through connecting rods, the middle parts of the first clamping jaw and the second clamping jaw are hinged to the supporting plate, and a first spring is simultaneously connected between the first clamping jaw and the second clamping jaw; the lower end of the outer cylinder is provided with an inner cylinder in a sliding manner, a pin is fixed on the outer side of the inner cylinder, and the pin is arranged in an open slot formed in the peripheral wall of the outer cylinder in a sliding manner; the lower extreme of stay cord is connected to pulling device, pulling device is located the inboard bottom of steel reinforcement cage body.
Further, the pulling device comprises a horizontal guide cylinder, a sliding groove is formed in the side face of the horizontal guide cylinder, a sliding rod is arranged in the sliding groove in a sliding mode, the lower end of the pull rope penetrates into the horizontal guide cylinder and then is connected with the sliding rod, and a second spring is connected between the sliding rod and the horizontal guide cylinder; the slide bar articulates to the one end of bracing piece, the other end of bracing piece articulates to the one end of clamp plate, the other end of clamp plate articulates with the horizontal guide cylinder.
The invention has the beneficial effects that:
(1) The invention discloses a static test loading device for a tunnel local component based on a reinforced gabion, which is used for carrying out test loading on a reinforced gabion tunnel supporting component and can reflect the real stress condition of a tunnel.
(2) The two sides of the device are provided with angle-adjustable fixed hinge supports, steel backing plates are welded on the supports, and the steel backing plates can correspondingly rotate along with the deformation of the two ends of the component; meanwhile, the front side and the rear side of the component are restrained by the fixed steel plates to deform, and the two points can ensure that the stress form of the component is more in line with the actual engineering situation;
(3) The fixed hinge support is detachably connected through bolts, and when the fixed hinge support or the bolts are damaged, the purpose of 'replaceable' is realized;
(4) The device can realize a multifunctional loading mode of the component, namely the number and loading positions of the jacks can be flexibly set according to loading requirements, such as full-ring loading when surrounding rock is completely contacted with the component, partial loading when the surrounding rock is partially separated from the component, and the like;
(5) The whole device is a self-balancing system and can be used in random movement according to requirements.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic diagram of a test loading device according to the present invention;
FIG. 2 is a top view of the test loading device of the present invention;
fig. 3 is a schematic structural view of a gabion member;
fig. 4 is a front view of the gabion components;
fig. 5 is a schematic structural view of a reinforcement cover;
FIG. 6 is a schematic illustration of the connection of the first jaw and the second jaw;
FIG. 7 is a schematic view of a pulling device;
fig. 8 is a relationship diagram of the tunnel member and the overall structure.
The figures are marked as follows: left steel plate 1, right steel plate 2, front steel plate 3, rear steel plate 4, fixed hinge support 5, steel backing plate 6, crushed steel cage member 7, loading plate 8, jack 9, reaction frame 10, backing plate 11, i-steel 12, reaction steel plate 13, rubber pad 14, cage body 16, steel bar cover 17, vertical steel bar 18, horizontal steel bar 19, longitudinal steel bar 20, horizontal arc bar 21, longitudinal arc bar 22, outer cylinder 23, pull rope 24, support plate 25, slide block 26, end 27, connecting rod 28, first clamping jaw 29, second clamping jaw 30, first spring 31, inner cylinder 32, pin 33, open slot 34, pulling device 35, horizontal guide cylinder 36, chute 37, slide bar 38, second spring 39, support bar 40, and pressure plate 41.
Detailed Description
As shown in fig. 1 to 8, the static test loading device for the tunnel local member based on the crushed steel gabion comprises a left steel plate 1, a right steel plate 2, a front steel plate 3 and a rear steel plate 4 which are all rectangular in surrounding, wherein the structures of the left steel plate 1, the right steel plate 2, the front steel plate 3 and the rear steel plate 4 are rectangular, the lower end of the device is connected with the ground, and the upper part of the device is surrounded into a rectangle for limiting the crushed steel gabion member 7.
Wherein, fixed hinge support 5 is all installed to the opposite side of left side steel sheet 1 and right side steel sheet 2, and fixed hinge support 5 is connected with steel backing plate 6, and steel backing plate 6 can be followed the deformation of component both ends and corresponding rotation, installs garrulous gabion component 7 of reinforcing bar between two steel backing plates 6, and garrulous gabion component 7 of reinforcing bar is arch, and the bridge arch type structure of arch about like. The two ends of the reinforced gabion members 7 form inclined planes inclined inwards, and the reinforced gabion members can be limited through the steel backing plates 6, so that the stability of the whole structure is ensured.
Specifically, through the inclined plane structure, the left side surface and the right side surface of the reinforced gabion member 7 can be respectively abutted with the two steel backing plates 6, after the installation is finished, the width of the reinforced gabion member 7 is set to be the width pair of the front steel plate and the rear steel plate, and the front side surface and the rear side surface of the reinforced gabion member 7 are respectively abutted with the front steel plate 3 and the rear steel plate 4; the upside of garrulous gabion of reinforcing bar component 7 is provided with a plurality of loading boards 8, and loading board 8 sets gradually along the upper surface of garrulous gabion of reinforcing bar, and the crooked radian of loading board 8 is unanimous with the camber of garrulous gabion of reinforcing bar component 7, and the dorsal part of every loading board 8 is connected to reaction frame 10 through jack 9. By arranging a plurality of loading plates 8, a component multifunctional loading mode can be realized, and the number and loading positions of the jacks 9 can be flexibly set according to loading requirements, such as full-ring loading when surrounding rock is completely contacted with the component, partial loading when the surrounding rock is partially separated from the component, and the like.
In this embodiment, the two ends of the reaction frame 10 are connected with the i-steel 12 through the bolts and the backing plates 11, the i-steel 12 provides vertical supporting force for the integral structure, the i-steel 12 is fixedly connected with the left steel plate 1 or the right steel plate 2, the connection part between the reaction frame 10 and the i-steel 12 is obliquely provided with the reaction steel plate 13, part of the jacks 9 are installed on the reaction steel plate 13, the reverse supporting force of the jacks 9 is provided through the reaction steel plate 13, and the loading force of the structure can be corresponding to the reinforced gabion members 7 at the corresponding positions.
The specific implementation steps of the embodiment of the invention are as follows.
In the first step, left and right fixed hinge supports 5 are manufactured and connected to designated positions of the left and right steel plates 1 and 2 by bolts, respectively.
And secondly, the left steel plate 1, the right steel plate 2, the front steel plate 3 and the rear steel plate 4 are connected end to form a rectangular structure, and the joint between the steel plates is firmly welded.
Thirdly, two I-steel pieces 12 are welded to the outer middle positions of the left steel plate 1 and the right steel plate 2 respectively.
And fourthly, connecting the reaction frame 10 to the I-steel 12 through bolts and the backing plate 11.
Fifthly, according to the tunnel size, the size of the reinforced gabion members 7 to be loaded is designed and calculated, the angle of the steel backing plate 6 at the fixed hinge support 5 is adjusted according to the left and right side angles of the reinforced gabion members 7, the reinforced gabion members 7 are slowly put into a loading device, and the left and right fixed hinge supports 5 are properly adjusted, so that the heights of the left and right sides of the reinforced gabion members 7 are consistent, the heights of the front and rear sides of the reinforced gabion members 7 are consistent, and the reinforced gabion members 7 are placed.
And sixthly, sequentially placing 3 loading plates 8 on the surface of the component, sequentially placing three jacks 9 in the middle positions of the three loading plates 8, and simultaneously adjusting the angles and positions of the three jacks 9 to ensure that the jacks 9 are respectively vertical and clung to the upper surface of the loading plate 8 and the lower surface of the counter-force frame 10/counter-force steel plate 13 corresponding to the jacks.
And seventh, determining a loading mode according to the loading requirement.
(1) If full-ring loading is adopted, namely, full contact between surrounding rock and lining is simulated, three jacks 9 are started simultaneously for graded loading.
(2) If the load is local, the load is temporarily set to be the working condition (1) that the two sides of the component are in contact with each other and the middle is in contact with each other (2) that the two sides of the component are in contact with each other and the middle is in contact with each other or the working condition (3) that the left side of the component is in contact with the middle and the middle is in contact with each other. In the working condition 1, the loading plates 8 and the jacks 9 on two sides are removed, and only the loading plate 8 in the middle and the jack 9 are started for carrying out graded loading. Working condition 2, the middle loading plate 8 and the jack 9 are removed, and only the loading plates 8 and the jacks 9 at two sides are subjected to graded loading. And in the working condition 3, the right loading plate 8 and the jack 9 are removed, and only the left loading plate 8 and the jack 9 are reserved for carrying out graded loading.
As a further improvement of the member of the present embodiment, in the present embodiment, a rubber pad 14 is provided between the steel pad 6 and the crushed steel gabion member 7, which can be used to protect the surfaces of the steel pad 6 and the crushed steel gabion member 7, and the number of repeated use can be increased.
In this embodiment, the reinforced bar stone crusher member 7 includes a reinforced bar cage body 16, stone blocks arranged in the reinforced bar cage body 16, and a reinforced bar cover 17 arranged at the opening of the reinforced bar cage body 16, wherein the reinforced bar cage body 16 is used for loading the stone blocks, and the reinforced bar cover 17 can vertically displace to adjust the thickness of the reinforced bar stone crusher member 7.
In this embodiment, the reinforcement cage body 16 includes a plurality of vertical bars 18 of even interval arrangement, the horizontal reinforcing bar 19 and the vertical reinforcing bar 20 that link together vertical bar 18, the reinforcing bar lid 17 includes a plurality of horizontal arc muscle 21 groups and the vertical arc muscle 22 group that indulge the looks setting, horizontal arc muscle 21 group includes two adjacent horizontal arc muscle 21 that set up, two horizontal arc muscle 21 interval formation is used for the interval that vertical bar 18 passed through, vertical arc muscle 22 group includes two adjacent vertical arc muscle 22 that set up, two vertical arc muscle 22 interval formation is used for the interval that vertical bar 18 passed through, the vertical of reinforcing bar lid 17 is spacing through horizontal reinforcing bar 19 and vertical reinforcing bar 20. By arranging the transverse arc-shaped ribs 21 and the longitudinal arc-shaped ribs 22 which are separated, the vertical steel bars 18 of the steel reinforcement cage body 16 can be clamped into the two longitudinal arc-shaped ribs at intervals, and after the installation of the steel reinforcement cover 17 is finished, the two horizontal degrees of freedom of the steel reinforcement cover 17 can be limited through the clamping effect. In the vertical direction, the steel bar cover 17 is limited by the transverse steel bars 19 and the longitudinal steel bars 20. When the crushed gabion members 7 with different thicknesses are required to be selected, the steel bar covers 17 can be clamped between the transverse steel bars 19 and the longitudinal steel bars 20 of different layers. It will be appreciated that, in order to facilitate the confinement of crushed stone, mesh reinforcement lines are also laid between the reinforcement bars of the reinforcement cage body 16 or the reinforcement bar cover 17. To avoid interference, the front steel plate 3, the rear steel plate 4 and the steel backing plates 6 on both sides are provided with notches for passing through the groups of transverse arc-shaped ribs 21 or the groups of longitudinal arc-shaped ribs 22, as will be understood by those skilled in the art.
In the embodiment, an outer cylinder 23 is fixed on the outer side of a reinforcement cage body 16, a pull rope 24 is arranged in the center of the outer cylinder 23, a supporting plate 25 is fixed at the upper end of the outer cylinder 23, the upper end of the pull rope 24 penetrates out of a guide hole formed in the supporting plate 25 and then is connected to a sliding block 26, the sliding block 26 is in sliding fit with the outer cylinder 23, the lower end of the sliding block 26 is fixedly connected to a head 27, two ends of the head 27 are respectively hinged to a first clamping jaw 29 and a second clamping jaw 30 through a connecting rod 28, the middle parts of the first clamping jaw 29 and the second clamping jaw 30 are hinged to the supporting plate 25, and a first spring 31 is simultaneously connected between the first clamping jaw 29 and the second clamping jaw 30; the lower end of the outer cylinder 23 is provided with an inner cylinder 32 in a sliding manner, a pin 33 is fixed on the outer side of the inner cylinder 32, and the pin 33 is arranged in an open slot 34 formed in the peripheral wall of the outer cylinder 23 in a sliding manner; the lower end of the pull rope 24 is connected to a pulling device 35, and the pulling device 35 is positioned at the inner bottom of the reinforcement cage body 16.
Specifically, the pulling device 35 includes a horizontal guide tube 36, a sliding groove 37 is provided on the side surface of the horizontal guide tube 36, a sliding rod 38 is provided in the sliding groove 37 in a sliding manner, the lower end of the pull rope 24 penetrates into the horizontal guide tube 36 and then is connected to the sliding rod 38, and a second spring 39 is connected between the sliding rod 38 and the horizontal guide tube 36; the slide bar 38 is hinged to one end of a support bar 40, the other end of the support bar 40 is hinged to one end of a pressing plate 41, and the other end of the pressing plate 41 is hinged to the horizontal guide cylinder 36. In particular operation, the jack 9 applies a force on the upper side of the steel reinforcement cage member 7, the steel reinforcement cage member 7 applying a downward force to the pressure plate 41. After being stressed, the pressing plate 41 can rotate so as to apply force to the sliding rod 38 through the supporting rod 40, the sliding rod 38 slides along the sliding groove 37 so as to compress the second spring 39 and pull the pull rope 24, the pull rope 24 can pull the sliding block 26 and the end 27 to displace after being guided by the guide wheel, and the end 27 can drive the first clamping jaw 29 and the second clamping jaw 30 to deflect through the connecting rod 28 after being displaced, so that the first clamping jaw 29 and the second clamping jaw 30 realize the mutual clamping effect. After the first clamping jaw 29 and the second clamping jaw 30 clamp the transverse arc-shaped rib 21 group or the longitudinal arc-shaped rib 22 group, acting force between the transverse arc-shaped rib 21 group and the longitudinal arc-shaped rib 22 group and the vertical steel bars 18 can be increased, the transverse arc-shaped rib 21 group and the longitudinal arc-shaped rib 22 group are prevented from sliding out of the outer sides of the vertical steel bars 18, deformation of the periphery of the steel bar cover 17 can be reduced, and the stress of the steel bar cover 17 is more in line with the actual situation. After loading is finished, the transverse arc-shaped rib 21 group and the longitudinal arc-shaped rib 22 group are not limited by the clamping jaw any more, so that the transverse arc-shaped rib 21 group and the longitudinal arc-shaped rib 22 group can be separated from the vertical steel bar 18 normally, and the position of the steel bar cover 17 can be moved conveniently. And can provide preparation for the next sample loading work to be smoothly carried out.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (7)
1. Tunnel local component static test loading device based on garrulous gabion of reinforcing bar, its characterized in that: the steel bar broken stone cage comprises a left steel plate, a right steel plate, a front steel plate and a rear steel plate which are encircled to form a rectangle, wherein fixed hinge supports are arranged on the opposite sides of the left steel plate and the right steel plate, the fixed hinge supports are connected with steel base plates, a steel bar broken stone cage component is arranged between the two steel base plates, the steel bar broken stone cage component is arched, inclined planes which incline inwards are formed at the two ends of the steel bar broken stone cage component, the left side surface and the right side surface of the steel bar broken stone cage component are respectively abutted with the two steel base plates, and the front side surface and the rear side surface of the steel bar broken stone cage component are respectively abutted with the front steel plate and the rear steel plate; the utility model discloses a garrulous gabion of reinforcing bar, garrulous gabion component's upside is provided with a plurality of loading boards, the loading board sets gradually along the garrulous gabion of reinforcing bar's upper surface, the crooked radian of loading board is unanimous with the camber of reinforcing bar gabion component, and the dorsal part of every loading board is connected to the reaction frame through the jack.
2. The static test loading device for the tunnel local member based on the crushed steel gabion, according to claim 1, is characterized in that: the two ends of the reaction frame are connected with I-steel through bolts and backing plates, the I-steel is fixedly connected with a left steel plate or a right steel plate, a reaction steel plate is obliquely arranged at the joint between the reaction frame and the I-steel, and part of the jack is arranged on the reaction steel plate.
3. The static test loading device for the tunnel local member based on the crushed steel gabion, according to claim 1, is characterized in that: a rubber pad is arranged between the steel backing plate and the reinforced stone crushing cage component.
4. A tunnel partial member static test loading device based on a reinforced gabion according to any one of claims 1 to 3, wherein: the steel bar stone crushing cage component comprises a steel bar cage body, stone blocks arranged in the steel bar cage body and a steel bar cover arranged at an opening of the steel bar cage body, wherein the steel bar cover can vertically displace to adjust the thickness of the steel bar stone crushing cage component.
5. The static test loading device for the tunnel local member based on the crushed steel gabion, as claimed in claim 4, is characterized in that: the steel reinforcement cage body includes a plurality of vertical bars of even interval arrangement, will vertical bar links together horizontal bar and vertical bar, the steel reinforcement lid includes horizontal arc muscle group and the vertical arc muscle group that a plurality of violently indulge the setting in between, horizontal arc muscle group includes two adjacent horizontal arc muscle that set up, and two horizontal arc muscle interval forms the interval that is used for vertical bar to pass through, vertical arc muscle group includes two adjacent vertical arc muscle that set up, and two vertical arc muscle interval forms the interval that is used for vertical bar to pass through, the vertical of steel reinforcement lid is spacing through horizontal bar and vertical bar.
6. The static test loading device for the tunnel local member based on the crushed steel gabion, which is disclosed in claim 5, is characterized in that: the outer side of the reinforcement cage body is fixedly provided with an outer cylinder, the center of the outer cylinder is provided with a pull rope, the upper end of the outer cylinder is fixedly provided with a supporting plate, the upper end of the pull rope penetrates out of a guide hole formed in the supporting plate and is connected to a sliding block, the sliding block is in sliding fit with the outer cylinder, the lower end of the sliding block is fixedly connected to an end head, the two ends of the end head are respectively hinged to a first clamping jaw and a second clamping jaw through connecting rods, the middle parts of the first clamping jaw and the second clamping jaw are hinged to the supporting plate, and a first spring is simultaneously connected between the first clamping jaw and the second clamping jaw; the lower end of the outer cylinder is provided with an inner cylinder in a sliding manner, a pin is fixed on the outer side of the inner cylinder, and the pin is arranged in an open slot formed in the peripheral wall of the outer cylinder in a sliding manner; the lower extreme of stay cord is connected to pulling device, pulling device is located the inboard bottom of steel reinforcement cage body.
7. The static test loading device for the tunnel local member based on the crushed steel gabion, which is characterized in that: the pulling device comprises a horizontal guide cylinder, a sliding groove is formed in the side face of the horizontal guide cylinder, a sliding rod is arranged in the sliding groove in a sliding mode, the lower end of the pull rope penetrates into the horizontal guide cylinder and then is connected with the sliding rod, and a second spring is connected between the sliding rod and the horizontal guide cylinder; the slide bar articulates to the one end of bracing piece, the other end of bracing piece articulates to the one end of clamp plate, the other end of clamp plate articulates with the horizontal guide cylinder.
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| CN202311633626.1A CN117491154B (en) | 2023-12-01 | 2023-12-01 | Tunnel local component static test loading device based on reinforcement gabion |
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| CN202311633626.1A CN117491154B (en) | 2023-12-01 | 2023-12-01 | Tunnel local component static test loading device based on reinforcement gabion |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257080A (en) * | 2013-05-23 | 2013-08-21 | 西南交通大学 | Prototype test device for shield tunnel dual-layer lining structure and secondary lining pouring device |
| KR101451251B1 (en) * | 2013-06-28 | 2014-10-15 | 금호산업주식회사 | Loading Apparatus for Bending Member |
| CN205691429U (en) * | 2016-05-23 | 2016-11-16 | 安徽理工大学 | A kind of tunnel net shell indoor model test device |
| CN116558954A (en) * | 2023-04-12 | 2023-08-08 | 广西大学 | Bidirectional loading device for shield segment |
-
2023
- 2023-12-01 CN CN202311633626.1A patent/CN117491154B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257080A (en) * | 2013-05-23 | 2013-08-21 | 西南交通大学 | Prototype test device for shield tunnel dual-layer lining structure and secondary lining pouring device |
| KR101451251B1 (en) * | 2013-06-28 | 2014-10-15 | 금호산업주식회사 | Loading Apparatus for Bending Member |
| CN205691429U (en) * | 2016-05-23 | 2016-11-16 | 安徽理工大学 | A kind of tunnel net shell indoor model test device |
| CN116558954A (en) * | 2023-04-12 | 2023-08-08 | 广西大学 | Bidirectional loading device for shield segment |
Non-Patent Citations (1)
| Title |
|---|
| 郭秉正: "钢筋碎石笼装配式隧道衬砌P-U曲线试验研究", 万方数据知识服务平台, 2 October 2023 (2023-10-02), pages 2 * |
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| CN117491154B (en) | 2024-05-03 |
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