CN116905524B - Karst area foundation collapse-preventing reinforcement device and reinforcement method - Google Patents
Karst area foundation collapse-preventing reinforcement device and reinforcement method Download PDFInfo
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- CN116905524B CN116905524B CN202311159054.8A CN202311159054A CN116905524B CN 116905524 B CN116905524 B CN 116905524B CN 202311159054 A CN202311159054 A CN 202311159054A CN 116905524 B CN116905524 B CN 116905524B
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000002787 reinforcement Effects 0.000 title claims description 37
- 238000003860 storage Methods 0.000 claims abstract description 187
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 147
- 230000002265 prevention Effects 0.000 claims abstract description 12
- 238000009825 accumulation Methods 0.000 claims abstract description 8
- 239000002689 soil Substances 0.000 claims description 73
- 230000008093 supporting effect Effects 0.000 claims description 40
- 230000000903 blocking effect Effects 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 21
- 230000005484 gravity Effects 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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Abstract
The application relates to the technical field of foundation collapse prevention, and discloses a foundation collapse prevention reinforcing device and a foundation collapse prevention reinforcing method for karst areas. After entering first storage bucket through the earth and crossing the gusset plate, along with the accumulation of earth in first storage bucket, the earth weight in first storage bucket can break through the storage weight threshold value of first storage bucket to make second restriction piece and second storage bucket separate, earth in the first storage bucket falls into the second storage bucket simultaneously, with this subsides that appear to the foundation pit lateral wall keep apart and block, the gusset plate itself can not be excessively less than the height of foundation pit lateral wall simultaneously, therefore the earth volume of subsideing must be collected by first storage bucket and second storage bucket, with this effectively consolidates the foundation ditch, avoid appearing collapsing and cause the influence to the foundation pit, strengthen the quality of reinforcing apparatus anti-collapse function.
Description
Technical Field
The application relates to the technical field of foundation collapse prevention, in particular to a foundation collapse prevention reinforcing device and a foundation collapse prevention reinforcing method for karst areas.
Background
The foundation pit is a soil pit excavated at a foundation design position according to the elevation of the substrate and the plane size of the foundation, when a building foundation pit is excavated, the foundation pit needs to be supported in time, otherwise, the foundation pit is easy to deform and collapse, and the traditional foundation pit supporting structure is built in the foundation pit on site through the supporting plates and the inclined struts. The karst is formed by chemical corrosion of soluble rocks such as limestone, marl and dolomite for a long time, part of the rock mass contains mud and is more severely weathered, so that the upper soil layer is thicker, the lower bedrock rock mass is broken, and the deformation and collapse are easier to occur when building foundation pits are excavated in karst areas due to the characteristic of the karst, so that the traditional foundation pit supporting structure is difficult to achieve satisfactory supporting effect.
In the existing reinforcing device, for example, chinese patent CN217629962U, the base plate is placed in the foundation pit, the motor is started to rotate the bidirectional threaded rod, the bidirectional threaded rod enables the sliding plates to be far away from or close to each other, and the pressing plate is adapted to foundation pits with various ruler warps. Then rotate the runner for threaded rod and cylinder rotate, and pivoted threaded rod constantly moves forward under the screw hole cooperation of template, makes the cylinder constantly circumference remove forward, and the circle cover at this moment just can the circumference rotate under the cooperation of bearing frame, and the cooperation of rethread cooperation groove, extension board makes pivoted threaded rod drive the circle cover and rotates, and through the spacing lock of threaded rod after the rotation is finished. The rotating round sleeve enables the pressing plate to be in various angles, so that the pressing plate is convenient to attach to the inner wall of the foundation pit; make its clamp plate direction change mechanism that sets up make the clamp plate demonstrate with multiple angle for the clamp plate laminating foundation ditch is convenient for stabilize and support the reinforcement foundation ditch, makes two clamp plates can be applicable to multiple chi through the foundation ditch through motor and the two-way threaded rod that set up.
But there are also the following problems: the condition that the foundation in karst area easily takes place to collapse, and when the high unable same with the foundation pit height of lateral wall gusset plate, the subsidence of production can pile up before the gusset plate earlier, then can cross the gusset plate and produce in the foundation pit and pile up, therefore current gusset plate is to the lateral wall of lava area ground foundation ditch prevent collapsing and have the defect.
Disclosure of Invention
Aiming at the defects of the prior art, the application provides the collapse-preventing and reinforcing device and the reinforcing method for the foundation in the karst area, which have the advantages of avoiding the influence of collapse of the side wall of the foundation in the karst area on the inside of a ground foundation pit, improving the collapse-preventing function quality of the reinforcing device and the like, solve the problem that the foundation in the karst area is easy to collapse, and when the height of the side wall reinforcing plate cannot be the same as the height of a foundation pit, the generated collapse can be accumulated in front of the reinforcing plate and then can be accumulated in the foundation pit after passing over the reinforcing plate, so that the existing reinforcing plate aims at the problem that the collapse-preventing of the side wall of the ground foundation pit in the lava area has defects.
In order to achieve the above purpose, the present application provides the following technical solutions: the foundation collapse prevention reinforcing device comprises a bottom frame, a reinforcing mechanism arranged on the bottom frame and an auxiliary mechanism arranged on the bottom frame, wherein the reinforcing mechanism comprises a reinforcing plate arranged on the bottom frame, and when the reinforcing plate is stressed, the reinforcing plate moves towards the bottom frame in a close way;
the auxiliary mechanism comprises a first storage hopper, a second storage hopper, a first limiting piece and a second limiting piece, wherein the first storage hopper is in running fit on the bottom frame, the second storage hopper is in running fit on the bottom frame, the first storage hopper is positioned right above the second storage hopper, the first limiting piece is arranged on the bottom frame in a sliding manner, the first limiting piece is connected with the reinforcing plate, the first limiting piece is clamped with the first storage hopper, the second limiting piece is arranged on the bottom frame, and the second limiting piece is clamped with the second storage hopper;
when the first storage hopper rotates, the rotation of the first storage hopper drives the second limiting piece to move, so that the second limiting piece is separated from the second storage hopper.
Preferably, the reinforcing mechanism further comprises a fixing plate, the fixing plate is fixedly arranged on the bottom frame, a plurality of limiting bins are arranged on one side of the fixing plate, the vertical sectional area of the inside of each limiting bin is larger than that of the opening of each limiting bin, limiting sliding rods are in sliding fit with the inside of each limiting bin, the limiting sliding rods penetrate through the opening of each limiting bin, and one end of each limiting sliding rod is matched with the inside of each limiting bin.
Preferably, the buffer springs are respectively sleeved on the limiting slide bars, the buffer springs are respectively located in the limiting bin, one ends of the buffer springs are connected with one ends of the limiting slide bars, the other ends of the buffer springs are connected with the inner wall surface of the limiting bin, the reinforcing plates are fixedly installed on the other ends of the limiting slide bars, the top ends of the reinforcing plates are arc-shaped structures, and the top ends of the reinforcing plates are located right above the fixing plates, so that the top ends of the reinforcing plates are vertically covered by the fixing plates.
Preferably, the guide way has all been seted up on the both sides of chassis, the guide way slope sets up, the top of guide way is close to the fixed plate, the bottom of guide way is kept away from the fixed plate, the guide way runs through the wall of chassis, all sliding fit has fixed fork in the guide way, fixed fork receives the restriction of guide way makes fixed fork can't leave the guide way, the equal fixed mounting in top of fixed fork has the hammer post, the hammer post with fixed fork is located same axis, the cross sectional area of hammer post is less than the cross sectional area of guide way.
Preferably, the rotating shafts are in running fit with the two sides of the underframe, the rotating shafts are adjacent to the guide grooves, the prying fork is fixedly installed on the rotating shafts, and an overlapping area exists between the track of the prying fork rotating along with the rotating shaft and the moving track of the hammer column, so that the prying fork is propped against the hammer column when rotating along with the rotating shaft, and the hammer plate is fixedly installed on the rotating shaft.
Preferably, the auxiliary mechanism further comprises a supporting shaft, a plurality of supporting shafts are rotatably matched on the other side of the fixed plate, the supporting shafts are located at the middle and bottom of the fixed plate, a gap exists between the shafts of the supporting shafts and the fixed plate, the first storage hopper is fixedly arranged on the supporting shaft above the supporting shafts, the second storage hopper is fixedly arranged on the supporting shaft below the supporting shafts, the two sides of the first storage hopper and the two sides of the second storage hopper extend into the fixed plate, and the two sides of the first storage hopper and the two sides of the second storage hopper are sealed with the fixed plate.
Preferably, the torsion springs are respectively sleeved at two ends of the shaft of the supporting shaft, one end of each torsion spring is connected with the shaft of the supporting shaft, the other end of each torsion spring is connected with the fixing plate, the fixing plate is slidably matched with the first limiting piece, the first limiting piece penetrates through the fixing plate, one end of the first limiting piece is connected with the reinforcing plate, and the other end of the first limiting piece is clamped with the top end of the first storage bucket.
Preferably, a plurality of plugging pieces are arranged on the fixing plate, the plugging pieces are matched with the shaft of the supporting shaft and the gap between the fixing plate, the plugging pieces above are in sliding fit with the fixing plate, the plugging pieces below are fixedly arranged on the fixing plate, a supporting sleeve plate is fixedly arranged on the fixing plate, a plurality of telescopic rods are fixedly arranged on the supporting sleeve plate, the telescopic rods are connected with the plugging pieces above, return springs are sleeved on the telescopic rods, one ends of the return springs are connected with the supporting sleeve plate, the other ends of the return springs are connected with the plugging pieces above, and the second limiting pieces above are fixedly arranged on the plugging pieces and are clamped with the second storage hopper.
Preferably, a plurality of auxiliary fixing pieces are rotatably matched on the reinforcing plate, a plurality of bolt openings are formed in the auxiliary fixing pieces, and auxiliary plate fixing openings are formed in the auxiliary fixing pieces.
A karst region foundation collapse prevention reinforcement method comprises the following steps:
s1: placing the reinforcing device in a karst region foundation pit, and propping the bottom end of the reinforcing device against the bottom end of the side wall of the karst region foundation pit, so that the reinforcing plate is close to the side wall of the karst region foundation pit, and reinforcing the karst region foundation pit through the reinforcing plate;
s2: when the side wall of the foundation pit in the karst area collapses, soil is accumulated in the gap between the reinforcing plate and the side wall of the foundation pit in the karst area to fill up the existing gap, the soil is pressed by the pressure of the soil, the reinforcing plate is moved by the soil, the first limiting piece is driven by the movement of the reinforcing plate to move, the first limiting piece is separated from the first storage bucket, the first storage bucket is rotated out and unfolded, and the soil can pass through the reinforcing plate to enter the unfolded first storage bucket after filling the front end of the reinforcing plate;
s3: along with the accumulation of earth in the first storage hopper, the gravity of earth can promote the shutoff piece removes, the removal of shutoff piece drives the second restriction piece removes, makes the second restriction piece with the second storage hopper separates, the second storage hopper rotates out and expands, along with earth continuously gets into in the first storage hopper, earth in the first storage hopper can fall into in the second storage hopper.
Compared with the prior art, the application provides the collapse-preventing reinforcement device and the reinforcement method for the foundation in the karst area, which have the following beneficial effects:
1. this reinforcing apparatus that collapses is prevented to ground gets into in the first storage bucket through earth and crosses the gusset plate, along with the accumulation of earth in the first storage bucket, the earth weight in the first storage bucket can break through the threshold value of depositing weight of first storage bucket, thereby make second restriction piece and second storage bucket separate, soil in the first storage bucket falls into the second storage bucket simultaneously, with this keep apart the subsidence that appears in the foundation pit lateral wall and block, the gusset plate itself can not be excessively less than the height of foundation pit lateral wall simultaneously, therefore the earth volume of collapsing must be deposited bucket and second storage bucket by first storage, with this consolidate the foundation ditch effectively, avoid appearing collapsing and cause the influence to the foundation pit, reinforcing apparatus prevents the quality of function of collapsing.
2. This reinforcing apparatus is prevented collapsing by ground, through after placing reinforcing apparatus's position, the workman uses hammer post, hammer post takes place to remove, hammer post drives fixed fork and removes in the guide way, make fixed fork insert in the bottom earth of ground foundation ditch, in order to improve reinforcing apparatus and to prevent collapsing and consolidate stability, then can hammer the hammer plate, the hammer plate passes through the restriction of pivot, make the pivot drive the hammer plate and rotate, the rotation of pivot drives the sled fork and rotates, can offset with the hammer post along with the rotation of sled fork, and make the sled fork drive the hammer post along with lasting hammer plate and remove, thereby make hammer post drive fixed fork remove, in order to take out fixed fork from the bottom earth of ground pit, remove the fixing to reinforcing apparatus with this, be convenient for remove reinforcing apparatus.
3. This reinforcing apparatus that collapses is prevented to ground through when single reinforcing apparatus is not enough used, a plurality of reinforcing apparatus can be in the same place, roll out supplementary stationary blade, laminate the supplementary stationary blade between two reinforcing apparatus mutually to make the bolt mouth coincidence, fixing bolt in the bolt mouth, make two reinforcing apparatus link to each other through supplementary stationary blade, take out the accessory plate simultaneously and carry out the bolt fastening to the accessory plate fixed mouth, make reinforcing apparatus can a plurality of use that link up, improve reinforcing apparatus's practicality effectively.
Drawings
FIG. 1 is a schematic view of the structure of the underframe of the present application;
FIG. 2 is a schematic view of the reinforcement mechanism of the present application;
FIG. 3 is a schematic view of the structure of the fixed fork of the present application;
FIG. 4 is an enlarged schematic view of the structure of FIG. 3 at C;
FIG. 5 is a schematic view of the structure of the limit sliding rod of the present application;
FIG. 6 is a schematic view of the auxiliary mechanism of the present application;
FIG. 7 is a schematic view of the structure of the plugging member of the present application;
FIG. 8 is an enlarged schematic view of FIG. 7A;
FIG. 9 is an enlarged schematic view of the structure of FIG. 7B;
FIG. 10 is a schematic view of the structure of the reinforcement plate of the present application;
FIG. 11 is a schematic view of an auxiliary fixing plate according to the present application;
FIG. 12 is a schematic view of the whole structure of the reinforcing apparatus of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As described in the background art, the application provides a collapse-preventing reinforcement device and a reinforcement method for a foundation in a karst area in order to solve the technical problems.
In an exemplary embodiment of the present application, as shown in fig. 1 to 10, the foundation collapse preventing and reinforcing device comprises a chassis 1, a reinforcing mechanism 2 arranged on the chassis 1, and an auxiliary mechanism 3 arranged on the chassis 1, wherein the reinforcing mechanism 2 comprises a reinforcing plate 25, the reinforcing plate 25 is arranged on the chassis 1, and the reinforcing plate 25 moves towards the chassis 1 when the reinforcing plate 25 is stressed;
the auxiliary mechanism 3 comprises a first storage bucket 32, a second storage bucket 33, a first limiting piece 35 and a second limiting piece 310, wherein the first storage bucket 32 is in running fit on the chassis 1, the second storage bucket 33 is in running fit on the chassis 1, the first storage bucket 32 is positioned right above the second storage bucket 33, the first limiting piece 35 is arranged on the chassis 1 in a sliding manner, the first limiting piece 35 is connected with the reinforcing plate 25, the first limiting piece 35 is clamped with the first storage bucket 32, the second limiting piece 310 is arranged on the chassis 1, and the second limiting piece 310 is clamped with the second storage bucket 33;
as the first bucket 32 rotates, rotation of the first bucket 32 drives the second limiter 310 to move, separating the second limiter 310 from the second bucket 33.
When the application is used:
the reinforcement device is placed in the foundation pit, the bottom end of the reinforcement device is propped against the bottom end of the side wall of the foundation pit, the reinforcement plate 25 is propped against the side wall of the foundation pit, the foundation pit is reinforced by the reinforcement plate 25, most of the side wall of the foundation pit and the reinforcement plate 25 are not completely matched and attached together, a gap exists between the reinforcement plate 25 and the side wall of the foundation pit, meanwhile, the size of the foundation pit cannot be always matched with the reinforcement plate 25, the height of the reinforcement plate 25 is slightly lower than the height of the foundation pit, when the side wall of the foundation pit collapses, soil is accumulated between the reinforcement plate 25 and the side wall of the foundation pit to fill the existing gap firstly, the soil is pressed by the pressure of the soil, the movement of the reinforcement plate 25 drives the first limiting piece 35 to move, the first limiting piece 35 is separated from the first storage bucket 32, the restriction of the first storage bucket 32 by the first restriction member 35 is released along with the separation, the first storage bucket 32 is rotated and unfolded, then the soil is fully filled in the front end of the reinforcing plate 25, and then enters the unfolded first storage bucket 32 beyond the reinforcing plate 25, the soil weight in the first storage bucket 32 breaks through the storage weight threshold of the first storage bucket 32 along with the accumulation of the soil in the first storage bucket 32, so that the soil in the first storage bucket 32 drives the second restriction member 310 to move through the self gravity to separate the second restriction member 310 from the second storage bucket 33, the restriction of the second restriction member 310 on the second storage bucket 33 is released along with the separation, the second storage bucket 33 is rotated and unfolded, and meanwhile, the bottom end of the first storage bucket 32 is opened when the soil weight in the first storage bucket 32 breaks through the storage weight threshold of the first storage bucket 32, so that the soil in the first storage bucket 32 falls into the second storage bucket 33, thus isolating and blocking the collapse of the side wall of the foundation pit;
after entering first storage bucket 32 through earth crossing gusset plate 25, along with the accumulation of earth in first storage bucket 32, the earth weight in first storage bucket 32 can break through the storage weight threshold value of first storage bucket 32 to make second restriction piece 310 separate with second storage bucket 33, simultaneously earth in first storage bucket 32 falls into second storage bucket 33, thereby keep apart the barrier to the subsidence that the foundation pit lateral wall appears, gusset plate 25 itself can not be excessively less than the height of foundation pit lateral wall simultaneously, therefore the earth volume of subsideing must be collected by first storage bucket 32 and second storage bucket 33, with this effectively consolidate the foundation pit, avoid appearing collapsing and cause the influence to the foundation pit, strengthen the quality of reinforcing apparatus collapse prevention function.
Further, as shown in fig. 1-3, the reinforcement mechanism 2 further includes a fixing plate 21, the fixing plate 21 is fixedly mounted on the chassis 1, a plurality of limiting bins 22 are provided on one side of the fixing plate 21, vertical sectional areas inside the limiting bins 22 are larger than vertical sectional areas at open mouths of the limiting bins 22, limiting slide bars 23 are slidably matched in the limiting bins 22, the limiting slide bars 23 penetrate through the open mouths of the limiting bins 22, and one ends of the limiting slide bars 23 are matched with the inside of the limiting bins 22.
Further, as shown in fig. 1-3, the limiting slide bars 23 are respectively sleeved with a buffer spring 24, the buffer springs 24 are respectively located in the limiting bin 22, one end of each buffer spring 24 is connected with one end of each limiting slide bar 23, the other end of each buffer spring 24 is connected with the inner wall surface of each limiting bin 22, the other ends of the limiting slide bars 23 are fixedly provided with reinforcing plates 25, the top ends of the reinforcing plates 25 are arc-shaped structures, and the top ends of the reinforcing plates 25 are located right above the fixing plates 21, so that the top ends of the reinforcing plates 25 vertically cover the fixing plates 21.
Wherein, after setting up reinforcing apparatus, when the foundation pit lateral wall takes place to collapse, earth flows to between reinforcing plate 25 and the foundation pit lateral wall, fills up the clearance between reinforcing plate 25 and the foundation pit lateral wall, receives the pressure of earth this moment, and earth promotes reinforcing plate 25 and removes, and reinforcing plate 25 promotes spacing slide bar 23 and removes in spacing storehouse 22, and spacing slide bar 23 presses buffer spring 24 compression, makes reinforcing plate 25 obtain the buffering, avoids the extrusion of earth to cause the destruction to reinforcing apparatus's structure.
Further, as shown in fig. 1-3, guide grooves 26 are formed on two sides of the chassis 1, the guide grooves 26 are obliquely arranged, the top ends of the guide grooves 26 are close to the fixing plate 21, the bottom ends of the guide grooves 26 are far away from the fixing plate 21, the guide grooves 26 penetrate through the wall surface of the chassis 1, fixing forks 27 are slidably matched in the guide grooves 26, the fixing forks 27 are limited by the guide grooves 26 so that the fixing forks 27 cannot leave the guide grooves 26, hammer columns 28 are fixedly arranged on the top ends of the fixing forks 27, the hammer columns 28 and the fixing forks 27 are located on the same axis, and the sectional area of the hammer columns 28 is smaller than that of the guide grooves 26.
Further, as shown in fig. 1-3, the two sides of the chassis 1 are respectively and rotatably fitted with a rotating shaft 29, the rotating shafts 29 are adjacent to the guide grooves 26, the rotating shafts 29 are respectively and fixedly provided with a prying fork 210, a superposition area exists between a rotating track of the prying fork 210 along with the rotating shaft 29 and a moving track of the hammer column 28, so that the prying fork 210 is propped against the hammer column 28 when rotating along with the rotating shaft 29, and the rotating shafts 29 are respectively and fixedly provided with a hammer plate 211.
After the position of the reinforcing device is placed, a worker uses a hammer to hammer the hammer column 28, the hammer column 28 moves, the hammer column 28 drives the fixed fork 27 to move in the guide groove 26, the fixed fork 27 is inserted into the soil at the bottom of the foundation pit, so that the stability of the reinforcing device for preventing collapse is improved, then the hammer plate 211 can be hammered, the hammer plate 211 is limited by the rotating shaft 29, the rotating shaft 29 drives the hammer plate 211 to rotate, the rotating shaft 29 drives the prying fork 210 to rotate, the prying fork 210 can abut against the hammer column 28 along with the rotation of the prying fork 210, the hammer column 28 is driven to move along with the continuous hammer plate 211, and the fixed fork 27 is taken out from the soil at the bottom of the foundation pit, so that the fixing of the reinforcing device is removed.
Further, as shown in fig. 1, 4 and 5, the auxiliary mechanism 3 further includes a supporting shaft 31, a plurality of supporting shafts 31 are rotatably fitted on the other side of the fixed plate 21, the supporting shaft 31 is located at the middle and bottom of the fixed plate 21, a gap exists between the shaft of the supporting shaft 31 and the fixed plate 21, a first storage bucket 32 is fixedly installed on the supporting shaft 31 above, a second storage bucket 33 is fixedly installed on the supporting shaft 31 below, two sides of the first storage bucket 32 and the second storage bucket 33 extend into the fixed plate 21, and two sides of the first storage bucket 32 and two sides of the second storage bucket 33 are sealed with the fixed plate 21.
Further, as shown in fig. 4 to 6, torsion springs 34 are respectively sleeved at two ends of the shaft of the supporting shaft 31, one end of each torsion spring 34 is connected with the shaft of the supporting shaft 31, the other end of each torsion spring 34 is connected with the fixing plate 21, a first limiting piece 35 is slidably matched with the fixing plate 21, the first limiting piece 35 penetrates through the fixing plate 21, one end of the first limiting piece 35 is connected with the reinforcing plate 25, and the other end of the first limiting piece 35 is clamped with the top end of the first storage bucket 32.
Wherein, when the reinforcing plate 25 moves, the reinforcing plate 25 drives the first limiting piece 35 to move, so that the engagement between the first limiting piece 35 and the first storage bucket 32 is released, the torsion spring 34 drives the support shaft 31 to rotate through the restoring force provided by the torsion spring 34, the support shaft 31 drives the first storage bucket 32 to rotate, and the first storage bucket 32 rotates to be unfolded after the limitation of the first limiting piece 35 on the first storage bucket 32 is released.
Further, as shown in fig. 5-7, a plurality of blocking pieces 36 are arranged on the fixed plate 21, the blocking pieces 36 are matched with the shaft of the supporting shaft 31 and the gap between the fixed plate 21, the blocking pieces 36 above are in sliding fit with the fixed plate 21, the blocking pieces 36 below are fixedly arranged on the fixed plate 21, a supporting sleeve plate 37 is fixedly arranged on the fixed plate 21, a plurality of telescopic rods 38 are fixedly arranged on the supporting sleeve plate 37, the telescopic rods 38 are connected with the blocking pieces 36 above, return springs 39 are respectively sleeved on the telescopic rods 38, one ends of the return springs 39 are connected with the supporting sleeve plate 37, the other ends of the return springs 39 are connected with the blocking pieces 36 above, a second limiting piece 310 is fixedly arranged on the blocking pieces 36 above, and the second limiting piece 310 is clamped with the second storage hopper 33.
When the gravity of the soil is greater than the elastic limit of the return spring 39, the soil in the first storage bucket 32 pushes the upper blocking piece 36 to move, the upper blocking piece 36 pushes the telescopic rod 38 to shrink, meanwhile, the upper blocking piece 36 pushes the return spring 39 to shrink, so that the sealing of the upper blocking piece 36 to the bottom end of the first storage bucket 32 is released, the soil can flow out from the bottom end of the first storage bucket 32, and along with the movement of the upper blocking piece 36, the bottom end of the first storage bucket 32 synchronously flows out of the soil, meanwhile, the blocking piece 36 drives the second limiting piece 310 to move, so that the engagement between the second limiting piece 310 and the second storage bucket 33 is released, the torsion spring 34 drives the support shaft 31 to rotate, the support shaft 31 drives the second storage bucket 33 to rotate, and the second limiting piece 310 releases the limitation of the second storage bucket 33, and the bottom end of the second storage bucket 33 is released, and the soil can flow out of the second storage bucket 33 after the first storage bucket 32 is released, and the soil can flow out of the second storage bucket 33 is expanded.
Further, as shown in fig. 4, 8 and 9, a plurality of auxiliary fixing pieces 311 are rotatably fitted on the reinforcing plate 25, a plurality of bolt openings 312 are formed in each of the auxiliary fixing pieces 311, and auxiliary plate fixing openings 313 are formed in each of the auxiliary fixing pieces 311.
Preferably, an auxiliary plate may be provided at the auxiliary plate fixing hole 313 such that a gap between the two reinforcing means is connected through the auxiliary plate, and the auxiliary plate functions the same as the reinforcing plate 25.
Wherein, when single reinforcing apparatus is not enough to use, a plurality of reinforcing apparatus can be placed together, roll out supplementary stationary blade 311, laminate supplementary stationary blade 311 between two reinforcing apparatus mutually to make bolt mouth 312 coincidence, fixing bolt in bolt mouth 312, make two reinforcing apparatus link to each other through supplementary stationary blade 311, take out the accessory plate simultaneously and carry out the bolt fastening to accessory plate fixed port 313, make reinforcing apparatus can a plurality of use that link up, improve reinforcing apparatus's practicality effectively.
Working principle:
the reinforcement device is placed in the foundation pit, the bottom end of the reinforcement device is propped against the bottom end of the side wall of the foundation pit, the reinforcement plate 25 is propped against the side wall of the foundation pit, the foundation pit is reinforced by the reinforcement plate 25, most of the side wall of the foundation pit and the reinforcement plate 25 are not completely matched and attached together, a gap exists between the reinforcement plate 25 and the side wall of the foundation pit, meanwhile, the size of the foundation pit cannot be always matched with the reinforcement plate 25, the height of the reinforcement plate 25 is slightly lower than the height of the foundation pit, when the side wall of the foundation pit collapses, soil is accumulated between the reinforcement plate 25 and the side wall of the foundation pit to fill the existing gap firstly, the soil is pressed by the pressure of the soil, the movement of the reinforcement plate 25 drives the first limiting piece 35 to move, the first limiting piece 35 is separated from the first storage bucket 32, the restriction of the first storage bucket 32 by the first restriction member 35 is released along with the separation, the first storage bucket 32 is rotated and unfolded, then the soil is fully filled in the front end of the reinforcing plate 25, and then enters the unfolded first storage bucket 32 beyond the reinforcing plate 25, the soil weight in the first storage bucket 32 breaks through the storage weight threshold of the first storage bucket 32 along with the accumulation of the soil in the first storage bucket 32, so that the soil in the first storage bucket 32 drives the second restriction member 310 to move through the self gravity to separate the second restriction member 310 from the second storage bucket 33, the restriction of the second restriction member 310 on the second storage bucket 33 is released along with the separation, the second storage bucket 33 is rotated and unfolded, and meanwhile, the bottom end of the first storage bucket 32 is opened when the soil weight in the first storage bucket 32 breaks through the storage weight threshold of the first storage bucket 32, so that the soil in the first storage bucket 32 falls into the second storage bucket 33, thus isolating and blocking the collapse of the side wall of the foundation pit; after the soil passes through the reinforcing plate 25 and enters the first storage hopper 32, the soil weight in the first storage hopper 32 breaks through the storage weight threshold value of the first storage hopper 32 along with the accumulation of the soil in the first storage hopper 32, so that the second limiting piece 310 is separated from the second storage hopper 33, meanwhile, the soil in the first storage hopper 32 falls into the second storage hopper 33, so that the collapse of the side wall of the foundation pit is isolated and blocked, and meanwhile, the reinforcing plate 25 is not excessively lower than the height of the side wall of the foundation pit, so that the collapsed soil amount can be collected by the first storage hopper 32 and the second storage hopper 33, the foundation pit can be effectively reinforced, the influence of the collapse on the foundation pit is avoided, and the collapse prevention function quality of the reinforcing device is improved;
after the position of the reinforcing device is placed, a worker uses a hammer to hammer the hammer column 28, the hammer column 28 moves, the hammer column 28 drives the fixed fork 27 to move in the guide groove 26, the fixed fork 27 is inserted into the bottom soil of the foundation pit, so that the stability of the reinforcing device for preventing collapse is improved, then the hammer plate 211 can be hammered, the hammer plate 211 is limited by the rotating shaft 29, the rotating shaft 29 drives the hammer plate 211 to rotate, the rotating shaft 29 drives the prying fork 210 to rotate, the prying fork 210 can abut against the hammer column 28 along with the rotation of the prying fork 210, and the prying fork 210 drives the hammer column 28 to move along with the continuous hammer plate 211, so that the hammer column 28 drives the fixed fork 27 to move, and the fixed fork 27 is taken out of the bottom soil of the foundation pit, so that the fixing of the reinforcing device is removed;
after the reinforcing device is arranged, when the side wall of the foundation pit collapses, soil flows between the reinforcing plate 25 and the side wall of the foundation pit, gaps between the reinforcing plate 25 and the side wall of the foundation pit are filled, at the moment, under the pressure of the soil, the soil pushes the reinforcing plate 25 to move, the reinforcing plate 25 pushes the limiting slide rod 23 to move in the limiting bin 22, and the limiting slide rod 23 presses the buffer spring 24 to compress, so that the reinforcing plate 25 is buffered, and the damage of the structure of the reinforcing device caused by the extrusion of the soil is avoided;
when the reinforcing plate 25 moves, the reinforcing plate 25 drives the first limiting piece 35 to move, so that the clamping between the first limiting piece 35 and the first storage bucket 32 is released, the torsion spring 34 drives the supporting shaft 31 to rotate through the restoring force provided by the torsion spring 34, the supporting shaft 31 drives the first storage bucket 32 to rotate, and the first storage bucket 32 rotates and expands after the limitation of the first limiting piece 35 on the first storage bucket 32 is released;
when soil enters the first storage bucket 32, the gravity of the soil can apply thrust to the upper blocking piece 36, when the gravity of the soil in the first storage bucket 32 is larger than the elastic limit of the reset spring 39, the soil in the first storage bucket 32 pushes the upper blocking piece 36 to move, the upper blocking piece 36 pushes the telescopic rod 38 to shrink, meanwhile, the upper blocking piece 36 pushes the reset spring 39 to shrink, so that the sealing of the upper blocking piece 36 to the bottom end of the first storage bucket 32 is released, the soil can flow out from the bottom end of the first storage bucket 32, and as the soil always enters the first storage bucket 32, the bottom end of the first storage bucket 32 synchronously flows out of the soil, meanwhile, as the upper blocking piece 36 moves, the second limiting piece 310 is driven to move, so that the clamping between the second limiting piece 310 and the second storage bucket 33 is released, the reset force provided by the torsion spring 34 drives the support shaft 31 to rotate, the support shaft 31 drives the second storage bucket 33 to rotate, so that the second limiting piece 310 releases the limitation of the second storage bucket 33, and the soil can flow out from the bottom end of the first storage bucket 33, and the soil can flow out from the first storage bucket 33;
simultaneously, when single reinforcing apparatus is not enough to use, a plurality of reinforcing apparatus can be placed together, roll out supplementary stationary blade 311, laminate supplementary stationary blade 311 between two reinforcing apparatus mutually to make bolt mouth 312 coincidence, fixing bolt in the bolt mouth 312, make two reinforcing apparatus link to each other through supplementary stationary blade 311, take out the accessory plate simultaneously and carry out the bolt fastening to accessory plate fixed port 313, make reinforcing apparatus can a plurality of use that link up, improve reinforcing apparatus's practicality effectively.
A karst region foundation collapse prevention reinforcement method comprises the following steps:
s1: placing the reinforcing device in the karst region foundation pit, and propping the bottom end of the reinforcing device against the bottom end of the side wall of the karst region foundation pit, so that the reinforcing plate 25 is close to the side wall of the karst region foundation pit, and reinforcing the karst region foundation pit through the reinforcing plate 25;
s2: when the side wall of the foundation pit in the karst area collapses, soil is firstly accumulated between the reinforcing plate 25 and the side wall of the foundation pit in the karst area to fill up the existing gap, and is under the pressure of the soil, the soil presses the reinforcing plate 25 to move, the movement of the reinforcing plate 25 drives the first limiting piece 35 to move, the first limiting piece 35 is separated from the first storage bucket 32, the first storage bucket 32 is rotated out and unfolded, and the soil passes through the reinforcing plate 25 to enter the unfolded first storage bucket 32 after the front end of the reinforcing plate 25 is filled with the soil;
s3: as soil accumulates in the first storage bucket 32, the gravity of the soil pushes the blocking member 36 to move, and the movement of the blocking member 36 drives the second limiting member 310 to move, so that the second limiting member 310 is separated from the second storage bucket 33, the second storage bucket 33 rotates out to be unfolded, and as the soil continuously enters the first storage bucket 32, the soil in the first storage bucket 32 falls into the second storage bucket 33.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. Karst area ground collapse prevention reinforcing apparatus, be in including chassis (1), setting reinforcing mechanism (2) on chassis (1), setting are in auxiliary mechanism (3) on chassis (1), its characterized in that:
the reinforcing mechanism (2) comprises a reinforcing plate (25), the reinforcing plate (25) is arranged on the underframe (1), and when the reinforcing plate (25) is stressed, the reinforcing plate (25) moves towards the underframe (1);
the auxiliary mechanism (3) comprises a first storage hopper (32), a second storage hopper (33), a first limiting piece (35) and a second limiting piece (310), wherein the first storage hopper (32) is in running fit on the bottom frame (1), the second storage hopper (33) is in running fit on the bottom frame (1), the first storage hopper (32) is positioned right above the second storage hopper (33), the first limiting piece (35) is arranged on the bottom frame (1) in a sliding manner, the first limiting piece (35) is connected with the reinforcing plate (25), the first limiting piece (35) is clamped with the first storage hopper (32), the second limiting piece (310) is arranged on the bottom frame (1), and the second limiting piece (310) is clamped with the second storage hopper (33).
When the first storage hopper (32) rotates, the rotation of the first storage hopper (32) drives the second limiting piece (310) to move, so that the second limiting piece (310) is separated from the second storage hopper (33);
the reinforcing mechanism (2) further comprises a fixing plate (21), the fixing plate (21) is fixedly arranged on the underframe (1), one side of the fixing plate (21) is provided with a plurality of limiting bins (22), the vertical sectional area of the inside of each limiting bin (22) is larger than that of the opening of each limiting bin (22), limiting slide bars (23) are slidably matched in each limiting bin (22), each limiting slide bar (23) penetrates through the opening of each limiting bin (22), and one end of each limiting slide bar (23) is matched with the inside of each limiting bin (22);
buffer springs (24) are sleeved on the limiting slide bars (23), the buffer springs (24) are located in the limiting bin (22), one ends of the buffer springs (24) are connected with one ends of the limiting slide bars (23), the other ends of the buffer springs (24) are connected with the inner wall surfaces of the limiting bin (22), reinforcing plates (25) are fixedly installed on the other ends of the limiting slide bars (23), the top ends of the reinforcing plates (25) are of arc structures, and the top ends of the reinforcing plates (25) are located right above the fixing plates (21) so that the top ends of the reinforcing plates (25) vertically cover the fixing plates (21);
guide grooves (26) are formed in two sides of the underframe (1), the guide grooves (26) are obliquely arranged, the top ends of the guide grooves (26) are close to the fixing plate (21), the bottom ends of the guide grooves (26) are far away from the fixing plate (21), the guide grooves (26) penetrate through the wall surface of the underframe (1), fixing forks (27) are slidably matched in the guide grooves (26), the fixing forks (27) are limited by the guide grooves (26) so that the fixing forks (27) cannot leave the guide grooves (26), hammer columns (28) are fixedly arranged at the top ends of the fixing forks (27), and the hammer columns (28) and the fixing forks (27) are located on the same axis, and the sectional area of each hammer column (28) is smaller than that of each guide groove (26).
The rotary shafts (29) are in running fit on two sides of the underframe (1), the rotary shafts (29) are adjacent to the guide grooves (26), prying forks (210) are fixedly arranged on the rotary shafts (29), a superposition area exists between a rotating track of the prying forks (210) along with the rotary shafts (29) and a moving track of the hammer column (28), so that the prying forks (210) are propped against the hammer column (28) when rotating along with the rotary shafts (29), and hammer plates (211) are fixedly arranged on the rotary shafts (29);
the auxiliary mechanism (3) further comprises a supporting shaft (31), a plurality of supporting shafts (31) are rotatably matched on the other side of the fixed plate (21), the supporting shafts (31) are located at the middle and the bottom of the fixed plate (21), a gap exists between the shaft of the supporting shaft (31) and the fixed plate (21), a first storage hopper (32) is fixedly arranged on the supporting shaft (31) above, a second storage hopper (33) is fixedly arranged on the supporting shaft (31) below, two sides of the first storage hopper (32) and the second storage hopper (33) extend into the fixed plate (21), and two sides of the first storage hopper (32) and two sides of the second storage hopper (33) are sealed with the fixed plate (21);
the novel storage hopper is characterized in that torsion springs (34) are sleeved at two ends of the shaft of the supporting shaft (31), one ends of the torsion springs (34) are connected with the shaft of the supporting shaft (31), the other ends of the torsion springs (34) are connected with the fixing plate (21), the fixing plate (21) is slidably matched with the first limiting piece (35), the first limiting piece (35) penetrates through the fixing plate (21), one ends of the first limiting pieces (35) are connected with the reinforcing plate (25), and the other ends of the first limiting pieces (35) are clamped with the top end of the first storage hopper (32);
be provided with a plurality of shutoff pieces (36) on fixed plate (21), shutoff pieces (36) with the axle of back shaft (31) reaches clearance looks adaptation between fixed plate (21), the top shutoff pieces (36) with fixed plate (21) sliding fit, below shutoff pieces (36) with fixed plate (21) fixed mounting, fixed mounting has support sleeve plate (37) on fixed plate (21), fixed mounting has a plurality of telescopic links (38) on support sleeve plate (37), the telescopic links (38) of telescopic links with the top shutoff pieces (36) link to each other, all the cover is equipped with reset spring (39) on telescopic links (38), the one end of reset spring (39) with support sleeve plate (37) link to each other, the other end of reset spring (39) with top shutoff pieces (36) are last fixed mounting has a plurality of telescopic links (38), second restriction piece (310) are deposited with second restriction piece (310).
2. The karst region foundation collapse-preventing reinforcement device according to claim 1, wherein:
the reinforcing plate (25) is rotatably matched with a plurality of auxiliary fixing plates (311), a plurality of bolt openings (312) are formed in the auxiliary fixing plates (311), and auxiliary plate fixing openings (313) are formed in the auxiliary fixing plates (311).
3. A reinforcement method using the karst region foundation collapse preventing reinforcement device according to any one of claims 1 to 2, comprising the steps of:
s1: placing the reinforcing device in a karst region foundation pit, and propping the bottom end of the reinforcing device against the bottom end of the side wall of the karst region foundation pit, so that the reinforcing plate (25) is close to the side wall of the karst region foundation pit, and reinforcing the karst region foundation pit through the reinforcing plate (25);
s2: when the side wall of the foundation pit in the karst area collapses, soil is accumulated in a gap between the reinforcing plate (25) and the side wall of the foundation pit in the karst area to fill up the existing gap, the soil is pressed by the pressure of the soil, the reinforcing plate (25) is moved by the soil, the first limiting piece (35) is driven to move by the movement of the reinforcing plate (25), the first limiting piece (35) is separated from the first storage bucket (32), the first storage bucket (32) is rotated and unfolded, and the soil can enter the unfolded first storage bucket (32) beyond the reinforcing plate (25) after the front end of the reinforcing plate (25) is filled with the soil;
s3: along with accumulation of soil in the first storage hopper (32), the gravity of the soil can push the blocking piece (36) to move, the movement of the blocking piece (36) drives the second limiting piece (310) to move, the second limiting piece (310) is separated from the second storage hopper (33), the second storage hopper (33) rotates out to be unfolded, and along with continuous entry of the soil into the first storage hopper (32), the soil in the first storage hopper (32) can fall into the second storage hopper (33).
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| CN202311159054.8A CN116905524B (en) | 2023-09-09 | 2023-09-09 | Karst area foundation collapse-preventing reinforcement device and reinforcement method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311159054.8A CN116905524B (en) | 2023-09-09 | 2023-09-09 | Karst area foundation collapse-preventing reinforcement device and reinforcement method |
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| CN116905524B true CN116905524B (en) | 2023-11-14 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1328987A (en) * | 1971-10-07 | 1973-09-05 | Morrice A R S | Trench shoring frame |
| KR101415658B1 (en) * | 2014-04-10 | 2014-07-04 | 정진덕 | The moving type shoring apparatus |
| CN211285631U (en) * | 2019-11-27 | 2020-08-18 | 中铁城建集团有限公司 | Karst area foundation excavation prevents reinforcing apparatus that sinks |
| KR102422081B1 (en) * | 2022-02-15 | 2022-07-20 | 김진원 | Civil engineering soil wall and civil engineering scaffolding structure |
| CN115217120A (en) * | 2022-08-17 | 2022-10-21 | 中国十七冶集团有限公司 | Assembled foundation pit supporting device and mounting method thereof |
| CN218373909U (en) * | 2022-10-09 | 2023-01-24 | 中铁十六局集团有限公司 | Ground foundation ditch collapse prevention supporting device |
-
2023
- 2023-09-09 CN CN202311159054.8A patent/CN116905524B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1328987A (en) * | 1971-10-07 | 1973-09-05 | Morrice A R S | Trench shoring frame |
| KR101415658B1 (en) * | 2014-04-10 | 2014-07-04 | 정진덕 | The moving type shoring apparatus |
| CN211285631U (en) * | 2019-11-27 | 2020-08-18 | 中铁城建集团有限公司 | Karst area foundation excavation prevents reinforcing apparatus that sinks |
| KR102422081B1 (en) * | 2022-02-15 | 2022-07-20 | 김진원 | Civil engineering soil wall and civil engineering scaffolding structure |
| CN115217120A (en) * | 2022-08-17 | 2022-10-21 | 中国十七冶集团有限公司 | Assembled foundation pit supporting device and mounting method thereof |
| CN218373909U (en) * | 2022-10-09 | 2023-01-24 | 中铁十六局集团有限公司 | Ground foundation ditch collapse prevention supporting device |
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| CN116905524A (en) | 2023-10-20 |
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