CN114960679B - Large-diameter foundation pit fender post and construction process thereof - Google Patents
Large-diameter foundation pit fender post and construction process thereof Download PDFInfo
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- CN114960679B CN114960679B CN202210720817.0A CN202210720817A CN114960679B CN 114960679 B CN114960679 B CN 114960679B CN 202210720817 A CN202210720817 A CN 202210720817A CN 114960679 B CN114960679 B CN 114960679B
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The application relates to a large-diameter foundation pit fender post and a construction process thereof, and relates to the technical field of foundation pit fender posts. The pile comprises pile bodies and coamings, wherein the coamings are connected between adjacent pile bodies, and a supporting component is connected to the coamings; the support assembly comprises a sliding block, a connecting plate, a supporting plate and a conical rod, wherein a storage hole is formed in the coaming, the sliding block is slidably connected in the storage hole, one end of the connecting plate is hinged to the sliding block, the other end of the connecting plate is hinged to the supporting plate, the conical rod is connected with the supporting plate, a clamping groove is formed in the supporting plate, the connecting plate is hinged to the inner wall of the clamping groove, a storage hole is formed in the supporting plate, the conical rod is rotationally connected with the inner wall of the storage hole through a rotating rod, a locking assembly for locking the conical rod when the conical rod is stored is arranged between the supporting plate and the conical rod, a blocking hole is formed in the storage hole, a baffle is inserted in the blocking hole, and a blocking spring is connected between the baffle and the bottom of the blocking hole. The application has the effect of reducing the space occupied by the coaming and the support component during carrying.
Description
Technical Field
The application relates to the field of foundation pit support, in particular to a large-diameter foundation pit support pile and a construction process thereof.
Background
The foundation pit is a soil pit excavated at a foundation design position according to the elevation of a substrate and the plane size of the foundation, various measures are usually required to reinforce the earthwork around the foundation pit in order to ensure the stability of the foundation pit and prevent collapse and instability of the pit wall of the foundation pit, and the guard piles are one of the most common measures in foundation pit engineering.
The guard pile is a support pile for the foundation pit support, and has the functions of blocking the earthwork of the peripheral road of the foundation pit after the foundation pit is excavated, protecting the construction safety in the foundation pit, and simultaneously, the guard pile has the water stopping effect, so that the peripheral water flow into the foundation pit is effectively reduced.
The current chinese patent of bulletin number CN216275726U that grants, it includes many linear distribution's fixed column, the side fixedly connected with mounting panel of fixed column, and be provided with the baffle between two mounting panels, the side fixedly connected with mounting column of baffle, the spout has been seted up to the side of mounting column, sliding connection has the slider in the spout, the side fixedly connected with two splint of slider, and be connected with the telescopic link through the axis of rotation between two splint, the end of telescopic link links to each other with the top surface of bottom plate, and the end of telescopic link rotates with the top surface of bottom plate through additional splint and axis of rotation and is connected, the equal fixedly connected with ground awl in four corners of bottom plate bottom surface. The sliding block is arranged at the side surface of the mounting column in a sliding way, and the length of the telescopic rod is changed, so that the included angle is kept small according to the depth of an actual field pit, the occupied space of a plurality of foundation pits is avoided, and the practical use is facilitated.
In carrying out the present application, the inventors have found that at least the following problems exist in this technology: when need not to the foundation ditch enclosure, unscrew the bolt between telescopic link and the splint to separate bottom plate and baffle, so that the transport, but need deposit bottom plate and baffle respectively and lead to occupation space too big in the handling, so need to improve.
Disclosure of Invention
In order to solve the problem that the floor and the baffle are required to be stored respectively in the carrying process to cause overlarge occupied space, the application provides a large-diameter foundation pit fender pile and a construction process thereof.
In a first aspect, the present application provides a large-diameter foundation pit fender post, which adopts the following technical scheme:
a large-diameter foundation pit fender pile comprises pile bodies and coamings, wherein the coamings are connected between adjacent pile bodies, and support assemblies are connected to the coamings;
the support assembly comprises a sliding block, a connecting plate, a supporting plate and a conical rod, wherein a storage hole is formed in the coaming, the sliding block is slidably connected in the storage hole, one end of the connecting plate is hinged to the sliding block, the other end of the connecting plate is hinged to the supporting plate, the conical rod is connected with the supporting plate, a clamping groove is formed in the supporting plate, the connecting plate is hinged to the inner wall of the clamping groove, a storage hole is formed in the supporting plate, the conical rod is rotatably connected with the inner wall of the storage hole through a rotating rod, a locking assembly for locking the conical rod during storage is arranged between the supporting plate and the conical rod, a blocking hole is formed in the storage hole, a baffle is inserted in the blocking hole, and a blocking spring is connected between the baffle and the bottom of the blocking hole.
By adopting the technical scheme, when the pile body is used, the pile body is vertically and circumferentially arranged in the foundation pit, the pile body is closely attached to the inner wall of the foundation pit, and then two ends of the coaming along the length direction are respectively inserted into corresponding slots; pressing the baffle plate into the baffle hole, overturning the connecting plate and the supporting plate to one side far away from the bottom of the storage hole so as to form a certain angle between the connecting plate and the coaming, separating the locking component to enable the cone rod to be overturned out of the storage hole until the cone rod is perpendicular to the supporting plate, locking the cone rod through the locking component, sliding the sliding block downwards along the vertical direction until the cone rod is inserted into the soil layer, and fixing the sliding block through bolts, so that the coaming and the pile body are supported, and when the foundation pit is supported, collapse and instability of the pit wall are less prone to occurring;
during storage, the bolts are taken down from the sliding blocks, the sliding blocks are pushed to slide upwards along the vertical direction until the sliding blocks slide to the inner top wall of the storage hole, then the conical rod is rotated into the storage hole and the supporting plate is rotated until the supporting plate is inserted into the clamping groove, then the baffle is pressed into the blocking hole and the connecting plate and the supporting plate are rotated into the storage hole, then the baffle is loosened, finally the coaming is taken out from the slot, so that the supporting component and the coaming are not required to be separated when the foundation pit is not required to be protected, and the occupied space when the coaming and the supporting component are carried is reduced.
Optionally, the locking subassembly includes ratchet and pawl, the ratchet coaxial sleeve is located on the dwang, the pawl with the inner wall of depositing the hole rotates to be connected, just the pawl joint in the tooth's socket of ratchet.
Through adopting the technical scheme, when the ratchet wheel rotates outwards of the storage hole, the pawl is separated from the ratchet wheel, the cone rod is rotated outwards, the pawl is rotated into the tooth groove of the ratchet wheel before the cone rod and the supporting plate form 90 degrees, and then the cone rod is rotated until the pawl and the supporting plate form 90 degrees, and the pawl is just and completely clamped in the tooth groove of the ratchet wheel at the moment; when the cone rod is stored, the cone rod rotates towards the storage hole until the cone rod is completely positioned in the storage hole, so that the cone rod can be stored, and the one-way locking can be realized due to the cooperation of the ratchet wheel and the pawl, so that the cone rod is not easy to automatically overturn out of the storage hole.
Optionally, be provided with perpendicular subassembly between the connecting plate with the backup pad, perpendicular subassembly includes sleeve and dead lever, set up the holding hole on the connecting plate, the sleeve with the inner wall in holding hole is articulated, dead lever threaded connection in the sleeve, set up the fixed orifices in the joint groove, the dead lever is kept away from telescopic one end threaded connection in the fixed orifices.
Through adopting above-mentioned technical scheme, during the use, rotate the backup pad to the horizontality, then rotate out the holding hole with the sleeve, then aim at the fixed orifices with the dead lever and screw in the fixed orifices to make when the bounding wall is in the foundation ditch perpendicularly, the backup pad will keep the perpendicular state with the bounding wall, thereby when inserting the awl pole to the soil layer, the backup pad is difficult for deflecting in the horizontal direction and leads to awl pole to insert in the soil layer obliquely.
Optionally, be provided with between the slider with the bounding wall is used for improving the bounding wall with the stability when the pile body is located the foundation ditch, fixed establishment includes fixed subassembly and drive assembly one end with the slider is connected, the other end with fixed subassembly is connected.
Through adopting above-mentioned technical scheme, when needs insert the awl pole soil horizon and promote the slider and slide downwards along vertical direction, this in-process drive assembly will move, and drive assembly's operation will promote fixed subassembly and fix the bounding wall to bounding wall and pile body stability when enclosing the foundation ditch has been improved.
Optionally, fixed subassembly includes stock, first screw rod and stopper, the slide hole has been seted up on the bounding wall, the spacing groove has been seted up in the slide hole, the stock insert establish and slide in the slide hole, the stopper insert establish and slide in the spacing groove just the stopper with the stock is connected, threaded hole has been seted up on the stock, first screw rod one end threaded connection in threaded hole, the other end with drive assembly is connected.
By adopting the technical scheme, when the tapered rod is required to be inserted into the soil layer to push the sliding block to slide downwards along the vertical direction, the driving assembly operates in the process, the driving assembly operates to drive the first screw rod to rotate, and the rotation of the first screw rod pushes the anchor rod to be inserted into the soil layer, so that the stability of the coaming and the pile body in the process of enclosing a foundation pit is improved; when the sliding block slides upwards along the vertical direction, the driving assembly also drives the first screw rod to overturn, so that the anchor rod is retracted into the sliding hole.
Optionally, the drive assembly includes actuating lever, wind spring, fixed plate, stay cord, driving gear and driven gear, offered first chamber in the bounding wall, the screw rod is kept away from the one end of stock runs through to in the first chamber, the fixed plate with the inner wall in first chamber is connected just offered the drive hole on the fixed plate, the actuating lever insert establish and rotate connect in the drive hole, the wind spring cover is located on the actuating lever and one end with the actuating lever is connected, the other end with the inner wall connection in drive hole, the coaxial cover of driving gear is located on the actuating lever, the coaxial cover of driven gear is located on the first screw rod just the driving gear with driven gear meshes, stay cord one end is located around on the actuating lever, the other end with the slider is connected.
By adopting the technical scheme, when the tapered rod is required to be inserted into the soil layer to push the sliding block to slide downwards along the vertical direction, the sliding block pulls the pull rope in the process, one end of the pull rope on the driving rod is loosened to drive the driving rod to rotate, the driving rod rotates to sequentially drive the driving gear, the driven gear and the first screw rod to rotate, and the rotation of the first screw rod pushes the anchor rod to be inserted into the soil layer, so that the stability of the coaming and the pile body in the process of enclosing a foundation pit is improved; when the sliding block slides upwards in the vertical direction, the driving rod drives the driving rod to rotate reversely and recover the pull rope by the force accumulated by the previous coil spring, so that the first screw rod is driven to rotate reversely to recover the anchor rod into the sliding hole.
Optionally, be provided with the connecting block on the pile body, the slot has been seted up on the connecting block, the bounding wall insert establish to in the slot, be provided with between the bounding wall with be used for between the connecting block the bounding wall with airtight mechanism sealed between the connecting block, airtight mechanism includes airtight subassembly and linkage subassembly, linkage subassembly one end with the actuating lever is connected, the other end with airtight subassembly is connected.
Through adopting above-mentioned technical scheme, when needs insert the awl pole soil layer and promote the slider and slide downwards along vertical direction, this in-process slider will pull the stay cord, and one end will loosen on the actuating lever and drive the actuating lever rotation this moment to through the link assembly, airtight subassembly will be located the one end of slot and seal between the inner wall of slot to the bounding wall, thereby improved the leakproofness between bounding wall and the pile body, and then reduced in a large amount of peripheral water infiltration foundation ditch from the space department between bounding wall and the pile body.
Optionally, the linkage subassembly includes drive belt and second screw rod, the airtight hole has been seted up on the bounding wall, the second screw rod with the inner wall in airtight hole rotates to be connected, the second screw rod with pass through between the actuating lever the drive belt transmission, the second screw rod with airtight subassembly is connected.
Through adopting above-mentioned technical scheme, when needs insert the awl pole soil layer and promote the slider and slide downwards along vertical direction, this in-process slider will pull the stay cord, and one end will loosen on the actuating lever and drive the actuating lever rotation this moment to through the drive belt, the second screw rod will take place to rotate and promote airtight subassembly and seal between the inner wall of one end that the bounding wall is located the slot and slot, thereby improved the leakproofness between bounding wall and the pile body, and then reduced a large amount of peripheral water infiltration foundation ditch from the space department between bounding wall and the pile body.
Optionally, airtight subassembly includes airtight bag, clamp plate, connecting rod and push pedal, the sealed hole has been seted up to the inner wall of slot, airtight bag's opening part lid in airtight hole's opening part just airtight bag inserts and establishes to in the sealed hole, clamp plate with the push pedal all sliding connection in the airtight hole just the connecting rod connect in the clamp plate with between the push pedal, the second screw rod runs through the push pedal and with push pedal threaded connection.
Through adopting above-mentioned technical scheme, when needs insert the awl pole and promote the slider and slide downwards along vertical direction with the awl pole, this in-process slider will pull the stay cord, one end will loosen on the actuating lever and drive the actuating lever and rotate this moment, and through the drive belt, the second screw rod will take place to rotate and promote the push pedal, the clamp plate will also move the air between compression clamp plate and the airtight bag towards one side that is close to the airtight bag, the airtight bag will take place to expand and insert and establish to the sealed downthehole this moment, with seal between the inner wall of one end and slot that is located the slot to the bounding wall, thereby improved the leakproofness between bounding wall and the pile body, and then reduced a large amount of peripheral water from the space department infiltration foundation ditch between bounding wall and the pile body.
In a second aspect, the application provides a construction process of a large-diameter foundation pit fender post, which adopts the following technical scheme:
the construction process of the large-diameter foundation pit fender post comprises the following steps of:
s1, arranging pile bodies in a foundation pit in a surrounding manner and tightly attaching the pile bodies to the inner wall of the foundation pit;
s2, respectively and correspondingly inserting two ends of the coaming into slots on connecting blocks of adjacent pile bodies;
s3, transforming the baffle back into the baffle hole through the compression shape of the baffle spring;
s4, turning the connecting plate towards one side far away from the containing hole, so that a certain angle is formed between the connecting plate and the coaming;
s5, screwing the fixing rod into the fixing hole so that the supporting plate and the coaming are kept in a vertical state;
s6, separating the pawl from the ratchet wheel, and then rotating the cone rod out of the storage hole until the cone rod is vertical to the connecting plate, wherein the pawl is clamped in a tooth slot of the ratchet wheel;
s7, sliding the sliding block towards the bottom of the foundation pit until the cone rod is inserted into the soil layer, and fixing the sliding block by using a bolt;
s8, in the sliding process of the sliding block, the sliding block pulls the pull rope, at the moment, the pull rope is loosened on the driving rod to drive the driving rod to rotate, the driving rod rotates to sequentially drive the driving gear, the driven gear and the first screw rod, and the rotation of the first screw rod pushes the anchor rod to insert into a soil layer, so that stability of the coaming and the pile body when the coaming and the pile body are located in the foundation pit is improved;
s9, in the process of rotating the driving rod, the second screw rod rotates through the driving belt, the push plate is pushed to slide towards the direction of the slot by the rotation of the second screw rod, the pressing plate also slides towards the direction of the slot at the moment, certain air is originally sealed between the pressing plate and the airtight bag, and the pressing plate expands the airtight bag by compressed air until the airtight bag is inserted into the sealing hole;
s10, after a foundation pit is not required to be protected, taking down a bolt of the sliding block, and pushing the sliding block to one side far away from the bottom wall of the foundation pit until the cone rod is taken out from the soil layer;
s11, screwing the fixing rod out of the fixing hole, and retracting the fixing rod and the sleeve into the accommodating hole;
s12, rotating the supporting plate until the connecting plate is placed in the clamping groove;
s13, transforming the baffle back into the baffle hole through the compression shape of the blocking spring, then rotating the connecting plate and the supporting plate into the containing hole, and loosening the baffle to enable the connecting plate and the supporting plate not to easily rotate out of the containing hole;
s14, taking out the bounding wall from the slot, can separate bounding wall and pile body, and the supporting component accomodates in accomodating the hole, need not to separate with the bounding wall to the space that supporting component and bounding wall occupy in handling has been reduced.
Through adopting above-mentioned technical scheme, can accomodate to as an organic whole with the bounding wall to supporting component to the required space that occupies when carrying bounding wall and supporting component has been reduced.
In summary, the present application includes at least one of the following beneficial effects:
1. when the pile body is used, the pile body is vertically and circumferentially arranged in the foundation pit, the pile body is tightly attached to the inner wall of the foundation pit, and then two ends of the coaming along the length direction are respectively inserted into corresponding slots; pressing the baffle plate into the baffle hole, overturning the connecting plate and the supporting plate to one side far away from the bottom of the storage hole so as to form a certain angle between the connecting plate and the coaming, separating the locking component to enable the cone rod to be overturned out of the storage hole until the cone rod is perpendicular to the supporting plate, locking the cone rod through the locking component, sliding the sliding block downwards along the vertical direction until the cone rod is inserted into the soil layer, and fixing the sliding block through bolts, so that the coaming and the pile body are supported, and when the foundation pit is supported, collapse and instability of the pit wall are less prone to occurring;
during storage, the bolts are taken down from the sliding blocks, the sliding blocks are pushed to slide upwards along the vertical direction until the sliding blocks slide to the inner top wall of the storage hole, then the conical rod is rotated into the storage hole and the supporting plate is rotated until the supporting plate is inserted into the clamping groove, then the baffle is pressed into the blocking hole and the connecting plate and the supporting plate are rotated into the storage hole, then the baffle is loosened, finally the coaming is taken out from the slot, so that the supporting component and the coaming are not required to be separated when the foundation pit is not required to be protected, and the occupied space when the coaming and the supporting component are carried is reduced.
2. When the cone rod is required to be inserted into a soil layer to push the sliding block to slide downwards along the vertical direction, the driving assembly operates in the process, and the driving assembly operates to push the fixing assembly to fix the coaming, so that the stability of the coaming and the pile body in the process of enclosing a foundation pit is improved.
3. When the cone rod is required to be inserted into a soil layer to push the sliding block to slide downwards along the vertical direction, the sliding block in the process pulls the pull rope, at the moment, one end of the pull rope on the driving rod is loosened to drive the driving rod to rotate, and the airtight assembly seals between one end of the coaming, which is positioned in the slot, and the inner wall of the slot through the linkage assembly, so that the sealing performance between the coaming and the pile body is improved, and a large amount of peripheral water is reduced from the gap between the coaming and the pile body to infiltrate into the foundation pit.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present application;
FIG. 2 is a schematic diagram of a structure for embodying a locking assembly in an embodiment of the present application;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a partial enlarged view at B in FIG. 2;
FIG. 5 is a schematic diagram of a structure for embodying a vertical component in an embodiment of the present application;
FIG. 6 is an enlarged view of a portion of FIG. 5 at C;
FIG. 7 is a schematic diagram of a structure for embodying a fixing mechanism according to an embodiment of the present application;
FIG. 8 is a partial enlarged view at D in FIG. 7;
FIG. 9 is an enlarged view of a portion of FIG. 7 at E;
FIG. 10 is a schematic diagram of a structure for embodying an airtight mechanism in an embodiment of the present application;
fig. 11 is a partial enlarged view of F in fig. 10.
In the figure: 1. a pile body; 11. a connecting block; 111. a slot; 1111. sealing the hole; 2. coaming plate; 21. a receiving hole; 211. a blocking hole; 2111. a baffle; 2112. a blocking spring; 22. a first chamber; 23. a slide hole; 231. a limit groove; 24. an airtight hole; 3. a support assembly; 31. a slide block; 32. a connecting plate; 321. an accommodation hole; 33. a support plate; 331. a clamping groove; 3311. a fixing hole; 332. a storage hole; 34. a taper rod; 4. a locking assembly; 41. a ratchet wheel; 42. a pawl; 5. a vertical component; 51. a sleeve; 52. a fixed rod; 6. a fixing mechanism; 61. a fixing assembly; 611. a bolt; 6111. a threaded hole; 612. a first screw; 613. a limiting block; 62. a drive assembly; 621. a driving rod; 622. a coil spring; 623. a fixing plate; 6231. a drive hole; 624. a pull rope; 625. a drive gear; 626. a driven gear; 7. an airtight mechanism; 71. a linkage assembly; 711. a transmission belt; 712. a second screw; 72. an airtight assembly; 721. an airtight bag; 722. a pressing plate; 723. a connecting rod; 724. a push plate.
Detailed Description
The application is described in further detail below with reference to fig. 1-11.
The embodiment of the application discloses a large-diameter foundation pit fender post. Referring to fig. 1, a major diameter foundation pit fender post includes pile body 1 and bounding wall 2, and pile body 1 is towards the lateral wall of bounding wall 2 one side and along fixed connecting block 11 that is provided with in the vertical direction, and slot 111 has been seted up to the lateral wall of connecting block 11 towards bounding wall 2 one side, and slot 111's transversal personally submitting "T" shape, and bounding wall 2 is close to the one end adaptation of connecting block 11 and inserts and establish to in the slot 111. When the foundation pit is used, the pile bodies 1 are vertically and circumferentially arranged in the foundation pit, the pile bodies 1 are tightly attached to the inner wall of the foundation pit, and then the two ends of the coaming 2 along the length direction are respectively inserted into the corresponding slots 111, so that the foundation pit is protected, and collapse and instability of the pit wall of the foundation pit are not easy to occur. In the embodiment of the application, three pile bodies 1 are taken as illustrations.
Referring to fig. 1 and 2, a support assembly 3 is provided on a side wall of the coaming 2, the support assembly 3 includes a slider 31, a connecting plate 32, a supporting plate 33 and a taper rod 34, a receiving hole 21 is provided on the side wall of the coaming 2, and the slider 31 is adapted to slide in the receiving hole 21 and slide in a vertical direction. The joint groove 331 has been seted up to the roof of backup pad 33, and the one end of joint groove 331 extends to the end wall of backup pad 33, and connecting plate 32 one end is articulated with the lateral wall of one side that slider 31 is close to the hole bottom of accomodating hole 21, and the other end is articulated with the inner wall that joint groove 331 kept away from bounding wall 2 one end. The bottom wall of the supporting plate 33 is provided with a storage hole 332, and the conical rods 34 are rotatably connected with the inner wall of one end, far away from the coaming 2, of the storage hole 332 through rotating rods, and in the embodiment of the application, the number of the conical rods 34 is two.
Referring to fig. 2 and 3, a locking assembly 4 is disposed between the inner wall of the storage hole 332 and the taper rod 34, a blocking hole 211 is formed in the inner bottom wall of the storage hole 21, a baffle plate 2111 is inserted in the blocking hole 211 in an adapting manner, a blocking spring 2112 is welded between the bottom wall of the baffle plate 2111 and the hole bottom of the blocking hole 211, and one end, far away from the blocking spring 2112, of the baffle plate 2111 extends out of the blocking hole 211.
When the pile body 1 is used, the pile body 1 is vertically and circumferentially arranged in the foundation pit, the pile body 1 is tightly attached to the inner wall of the foundation pit, and then two ends of the coaming 2 along the length direction are respectively inserted into corresponding slots 111; pressing baffle 2111 into baffle hole 211, turning connecting plate 32 and supporting plate 33 to the side far away from the bottom of storage hole 21 to form a certain angle between connecting plate 32 and coaming 2, separating locking assembly 4 to turn conical rod 34 out of storage hole 332 until it is vertical to supporting plate 33, locking conical rod 34 by locking assembly 4, sliding slider 31 downwards along vertical direction until conical rod 34 is inserted into soil layer, fixing slider 31 with bolts, thereby supporting coaming 2 and pile body 1, and when enclosing foundation pit, making the pit wall of foundation pit less prone to collapse and instability;
during storage, the bolts are taken down from the sliding blocks 31, the sliding blocks 31 are pushed to slide upwards in the vertical direction until the sliding blocks 31 slide to the inner top wall of the storage holes 21, then the conical rods 34 are rotated into the storage holes 332, the supporting plates 33 are rotated until the connecting plates 32 are inserted into the clamping grooves 331, then the baffle 2111 is pressed into the baffle holes 211, the connecting plates 32 and the supporting plates 33 are rotated into the storage holes 21, then the baffle 2111 is loosened, and finally the coaming 2 is taken out from the slots 111, so that the supporting components 3 are not required to be separated from the coaming 2 when no foundation pit is enclosed, and the occupied space when the coaming 2 and the supporting components 3 are carried is reduced.
Referring to fig. 2 and 4, the locking assembly 4 includes a ratchet 41 and a pawl 42, the ratchet 41 is coaxially sleeved on the rotating rod, the pawl 42 is rotatably connected with the inner top wall of the storage hole 332, and the pawl 42 is clamped in a tooth slot of the ratchet 41. When the ratchet wheel is rotated out of the storage hole 332, the pawl 42 is separated from the ratchet wheel 41, the taper rod 34 is rotated outwards, the pawl 42 is rotated into a tooth groove of the ratchet wheel 41 before the taper rod 34 and the support plate 33 form 90 degrees, and then the taper rod 34 is rotated until the pawl 42 forms 90 degrees with the support plate 33 and is just clamped in the tooth groove of the ratchet wheel 41; when the cone rod 34 is stored, the cone rod 34 is rotated towards the storage hole 332 until the cone rod 34 is completely positioned in the storage hole 332, so that the cone rod 34 can be stored, and the cone rod 34 is not easy to automatically turn out of the storage hole 332 because the ratchet wheel 41 and the pawl 42 are matched to realize unidirectional locking.
Referring to fig. 5 and 6, a vertical assembly 5 is disposed between the connection plate 32 and the support plate 33, the vertical assembly 5 includes a sleeve 51 and a fixing rod 52, a receiving hole 321 is formed in a side wall of the connection plate 32 facing the clamping groove 331, and the sleeve 51 is hinged to an inner wall of the receiving hole 321 far from one end of the support plate 33. The bottom of the clamping groove 331 is provided with a fixing hole 3311, one end of the fixing rod 52 is connected in the sleeve 51 in a threaded manner, and the other end of the fixing rod is connected in the fixing hole 3311 in a threaded manner. In use, the support plate 33 is rotated to a horizontal state, the sleeve 51 is rotated out of the accommodating hole 321, and the fixing rod 52 is aligned with the fixing hole 3311 and screwed into the fixing hole 3311, so that the support plate 33 is kept in a vertical state with the coaming 2 when the coaming 2 is vertically arranged in the foundation pit, and when the cone rod 34 is inserted into a soil layer, the support plate 33 is not easy to deflect in the horizontal direction, and the cone rod 34 is inserted into the soil layer obliquely.
Referring to fig. 1 and 7, a fixing mechanism 6 is provided between the slider 31 and the coaming 2, the fixing mechanism 6 includes a fixing member 61 and a driving member 62, and one end of the driving member 62 is connected to the slider 31, and the other end is connected to the fixing member 61. When the conical rod 34 is required to be inserted into a soil layer to push the sliding block 31 to slide downwards along the vertical direction, the driving assembly 62 operates in the process, and the driving assembly 62 operates to push the fixing assembly 61 to fix the coaming 2, so that the stability of the coaming 2 and the pile body 1 in the process of enclosing a foundation pit is improved.
Referring to fig. 7 and 8, the fixing assembly 61 includes an anchor rod 611, a first screw 612 and a limiting block 613, the bottom wall of the coaming 2 is provided with two sliding holes 23, and in the embodiment of the application, the number of the sliding holes 23 on each coaming 2 is two, the two sliding holes 23 are uniformly distributed along the length direction of the coaming 2, and the inner wall of the sliding hole 23 is provided with a limiting groove 231. The anchor rod 611 is inserted into the slide hole 23 in an adapting manner and slides along the vertical direction, the limiting block 613 is fixedly connected with the side wall of the anchor rod 611, and the limiting block 613 is inserted into the limiting groove 231 and slides along the vertical direction. The first cavity 22 is formed in the coaming 2, the threaded hole 6111 is formed in the top wall of the anchor rod 611, one end of the first screw rod 612 is in threaded connection with the threaded hole 6111, the other end of the first screw rod 612 penetrates into the first cavity 22 and is in rotary connection with the coaming 2, and one end of the first screw rod 612 located in the first cavity 22 is connected with the driving assembly 62. When the cone rod 34 is required to be inserted into the soil layer to push the sliding block 31 to slide downwards along the vertical direction, the driving assembly 62 operates in the process, the driving assembly 62 operates to drive the first screw 612 to rotate, and the rotation of the first screw 612 pushes the anchor rod 611 to be inserted into the soil layer, so that the stability of the coaming 2 and the pile body 1 in the process of enclosing a foundation pit is improved; when the slider 31 slides upward in the vertical direction, the driving assembly 62 will also drive the first screw 612 to reverse, thereby retracting the anchor rod 611 into the slide hole 23.
Referring to fig. 1 and 9, the driving assembly 62 includes a driving rod 621, a coil spring 622, fixing plates 623, a pull rope 624, a driving gear 625 and a driven gear 626, in which two groups of fixing plates 623 are provided in each first chamber 22, and two groups of fixing plates 623 are provided in one group, and the two groups of fixing plates 623 are fixedly connected to the inner top wall of the first chamber 22 and are uniformly arranged along the length direction of the first chamber 22. The opposite side walls of the two fixing plates 623 in one group are respectively provided with a driving hole 6231, and two ends of the driving rod 621 are respectively inserted into the corresponding driving holes 6231 and are rotatably connected with the inner wall of the driving hole 6231. The coil spring 622 is sleeved at one end of the driving rod 621 located in the driving hole 6231, one end of the coil spring 622 is connected with the driving rod 621, and the other end is connected with the inner wall of the driving hole 6231.
One end of the pull rope 624 is connected with the driving rod 621, and is wound on the driving rod 621, and the other end penetrates through the inner wall of the first cavity 22 and extends into the containing hole 21 to be fixedly connected with the top wall of the sliding block 31. The driving gear 625 is coaxially sleeved on the driving rod 621, the driven gear 626 is coaxially sleeved on one end of the first screw 612 located in the first cavity 22, and the driving gear 625 is meshed with the driven gear 626, wherein the diameter of the driven gear 626 is larger than that of the driving gear 625 in the embodiment of the application. When the cone rod 34 is required to be inserted into a soil layer to push the sliding block 31 to slide downwards along the vertical direction, the sliding block 31 pulls the pull rope 624 in the process, at the moment, one end of the pull rope 624 on the driving rod 621 is loosened to drive the driving rod 621 to rotate, the driving rod 621 sequentially drives the driving gear 625, the driven gear 626 and the first screw 612 to rotate, and the rotation of the first screw 612 pushes the anchor rod 611 to be inserted into the soil layer, so that the stability of the coaming 2 and the pile body 1 during retaining a foundation pit is improved; when the slider 31 slides upward in the vertical direction, the driving rod 621, by the force accumulated by the previous coil spring 622, will drive the driving rod 621 to reverse and retract the pulling rope 624, thereby driving the first screw 612 to reverse and retract the anchor rod 611 into the slide hole 23.
Referring to fig. 10, an airtight mechanism 7 is provided between the coaming 2 and the inner wall of the slot 111, and the airtight mechanism 7 includes an airtight assembly 72 and a link assembly 71, and the link assembly 71 is connected to the driving rod 621 at one end and to the airtight assembly 72 at the other end. When the cone rod 34 is required to be inserted into a soil layer to push the sliding block 31 to slide downwards along the vertical direction, the sliding block 31 pulls the pull rope 624 in the process, at the moment, one end of the pull rope 624 on the driving rod 621 is loosened to drive the driving rod 621 to rotate, and the airtight assembly 72 seals between one end of the coaming 2 positioned in the slot 111 and the inner wall of the slot 111 through the linkage assembly 71, so that the tightness between the coaming 2 and the pile body 1 is improved, and a large amount of peripheral water is reduced from penetrating into a foundation pit from a gap between the coaming 2 and the pile body 1.
Referring to fig. 11, the linkage assembly 71 includes a driving belt 711 and a second screw 712, the end walls of the coaming 2 at the two ends of the slot 111 are respectively provided with an airtight hole 24, and the second screw 712 is rotatably connected with the hole bottom of the airtight hole 24. The second screw 712 and the driving rod 621 are driven by a driving belt 711, and the driving belt 711 penetrates through the inner walls of the first chamber 22 and the airtight hole 24, and the second screw 712 is connected with the airtight assembly 72. When the cone rod 34 is required to be inserted into a soil layer to push the sliding block 31 to slide downwards along the vertical direction, the sliding block 31 pulls the pull rope 624 in the process, at the moment, one end of the pull rope 624 on the driving rod 621 is loosened to drive the driving rod 621 to rotate, and the second screw 712 rotates to push the airtight assembly 72 to seal between one end of the coaming 2 positioned in the slot 111 and the inner wall of the slot 111 through the driving belt 711, so that the tightness between the coaming 2 and the pile body 1 is improved, and a large amount of peripheral water is reduced from penetrating into a foundation pit from a gap between the coaming 2 and the pile body 1.
Referring to fig. 11, the airtight assembly 72 includes an airtight bag 721, a pressing plate 722, a connection rod 723 and a push plate 724, the airtight bag 721 is made of rubber material and an opening of the airtight bag 721 is covered at an opening of the airtight hole 24. Both the pressing plate 722 and the pushing plate 724 are slidably connected in the airtight hole 24, the pressing plate 722 is located between the pushing plate 724 and the airtight bag 721, the pressing plate 722 is sealed against the inner wall of the airtight hole 24, and a certain amount of air is sealed between the pressing plate 722 and the airtight bag 721. The connecting rod 723 is fixed between the platen 722 and the push plate 724, and the second screw 712 penetrates the push plate 724 and is screwed with the push plate 724. The side wall of the slot 111 facing the side of the coaming 2 is provided with a seal hole 1111, and the airtight bag 721 is inserted into the seal hole 1111. When the cone rod 34 is required to be inserted into a soil layer to push the sliding block 31 to slide downwards along the vertical direction, the sliding block 31 pulls the pull rope 624 in the process, at the moment, one end of the pull rope 624 on the driving rod 621 is loosened to drive the driving rod 621 to rotate, the second screw 712 rotates to push the push plate 724 through the driving belt 711, the pressure plate 722 also moves towards one side close to the airtight bag 721 to compress air between the pressure plate 722 and the airtight bag 721, at the moment, the airtight bag 721 expands and is inserted into the sealing hole 1111 to seal one end of the coaming 2 positioned in the slot 111 and the inner wall of the slot 111, so that the tightness between the coaming 2 and the pile body 1 is improved, and a large amount of peripheral water is reduced from penetrating into a foundation pit from a gap between the coaming 2 and the pile body 1.
In the embodiment of the application, since the top and bottom of the airtight holes 24 do not penetrate the top and bottom of the coaming 2, a small amount of peripheral water permeates between the top and bottom of the coaming 1 and the inner wall of the slot 111, but the water permeated by a small amount does not affect the overall waterproof performance, and the water flowing into the foundation pit is far less than the water blocked by the airtight assembly 7.
In the embodiment of the application, when the sliding block 31 slides downwards along the vertical direction, the closer the sliding block 31 is to the inner bottom wall of the containing hole 21, the better the fixing mechanism 6 has the effect of improving the stability of the coaming 2 and the pile body 1 in the foundation pit; the better the effect of the airtight mechanism 7 on improving the tightness between the coaming 2 and the inner wall of the slot 111.
The implementation principle of the large-diameter foundation pit fender post provided by the embodiment of the application is as follows: when the pile body 1 is used, the pile body 1 is vertically and circumferentially arranged in the foundation pit, the pile body 1 is tightly attached to the inner wall of the foundation pit, and then two ends of the coaming 2 along the length direction are respectively inserted into corresponding slots 111; pressing the baffle 2111 into the baffle hole 211, turning the connecting plate 32 and the supporting plate 33 to a side far away from the bottom of the hole of the containing hole 21 so as to form a certain angle between the connecting plate 32 and the coaming 2, separating the pawl 42 from the ratchet wheel 41, rotating the cone rod 34 outwards, rotating the pawl 42 into a tooth groove of the ratchet wheel 41 before the cone rod 34 forms 90 degrees with the supporting plate 33, and rotating the cone rod 34 until the cone rod forms 90 degrees with the supporting plate 33 and the pawl 42 is just completely clamped in the tooth groove of the ratchet wheel 41; then sliding the sliding block 31 downwards along the vertical direction until the conical rod 34 is inserted into the soil layer, and finally fixing the sliding block 31 by bolts, so that the support of the coaming 2 and the pile body 1 is completed, and collapse and instability of the pit wall are less likely to occur when the foundation pit is enclosed;
during storage, the bolt is taken down from the sliding block 31, then the sliding block 31 is pushed to slide upwards in the vertical direction until the sliding block 31 slides to the inner top wall of the storage hole 21, then the conical rod 34 is rotated into the storage hole 332, and storage of the conical rod 34 can be completed, and the conical rod 34 is not easy to automatically overturn out of the storage hole 332 because the ratchet wheel 41 and the pawl 42 are matched to realize unidirectional locking; then rotate backup pad 33 until backup pad 33 inserts to joint inslot 331, then with baffle 2111 to keeping off in the hole 211 press and with connecting plate 32 and backup pad 33 rotate to accomodate downthehole 21, then loosen baffle 2111, finally take out bounding wall 2 from slot 111 to need not to separate supporting component 3 and bounding wall 2 when need not to the foundation ditch enclosure, and then reduced the space that needs to occupy when bounding wall 2 and supporting component 3 carry.
The embodiment of the application also discloses a construction process of the large-diameter foundation pit fender post.
The construction process of the large-diameter foundation pit fender post comprises the following steps of:
s1, arranging pile bodies 1 in a surrounding manner in a foundation pit and tightly attaching the pile bodies to the inner wall of the foundation pit;
s2, respectively and correspondingly inserting two ends of the coaming plate 2 into the slots 111 on the connecting blocks 11 of the adjacent pile bodies 1;
s3, the baffle plate 2111 is transformed back into the baffle hole 211 through the compression shape of the baffle spring 2112;
s4, turning the connecting plate 32 towards one side far away from the containing hole 21, so that a certain angle is formed between the connecting plate 32 and the coaming 2;
s5, screwing the fixing rod 52 into the fixing hole 3311 so that the supporting plate 33 and the coaming 2 keep a vertical state;
s6, separating the pawl 42 from the ratchet wheel 41, and then rotating the taper rod 34 out of the storage hole 332 until the taper rod 34 is vertical to the connecting plate 32, wherein the pawl 42 is clamped in a tooth slot of the ratchet wheel 41;
s7, sliding the sliding block 31 towards the bottom of the foundation pit until the cone rod 34 is inserted into the soil layer, and then fixing the sliding block 31 by using bolts;
s8, in the sliding process of the sliding block 31, the sliding block 31 pulls the pull rope 624, at the moment, the pull rope 624 is loosened on the driving rod 621 to drive the driving rod 621 to rotate, the driving rod 621 sequentially drives the driving gear 625, the driven gear 626 and the first screw 612 to rotate, and the first screw 612 rotates to push the anchor rod 611 to be inserted into the soil layer, so that stability of the coaming 2 and the pile body 1 in the foundation pit is improved;
s9, in the process of rotating the driving rod 621, the second screw 712 rotates through the driving belt 711, the second screw 712 rotates to push the push plate 724 to slide towards the slot 111, at this time, the pressing plate 722 also slides towards the slot 111, and a certain amount of air is originally sealed between the pressing plate 722 and the airtight bag 721, at this time, the pressing plate 722 compresses the air to expand the airtight bag 721 until the airtight bag 721 is inserted into the sealing hole 1111;
s10, after a foundation pit is not required to be protected, taking down a bolt of the sliding block 31, and pushing the sliding block 31 towards one side far away from the bottom wall of the foundation pit until the cone rod 34 is taken out from a soil layer;
s11, screwing the fixing rod 52 out of the fixing hole 3311, and retracting the fixing rod 52 and the sleeve 51 into the accommodating hole 321;
s12, rotating the supporting plate 33 until the connecting plate 32 is placed in the clamping groove 331;
s13, transforming the baffle 2111 back into the baffle hole 211 through the compression shape of the baffle spring 2112, then rotating the connecting plate 32 and the supporting plate 33 into the containing hole 21, and loosening the baffle 2111 to make the connecting plate 32 and the supporting plate 33 not easy to rotate out of the containing hole 21;
s14, taking out the coaming 2 from the slot 111, the coaming 2 and the pile body 1 can be separated, and the supporting component 3 is accommodated in the accommodating hole 21 without being separated from the coaming 2, so that the occupied space of the supporting component 3 and the coaming 2 in the carrying process is reduced.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (2)
1. The large-diameter foundation pit guard pile comprises pile bodies (1) and coamings (2), wherein the coamings (2) are connected between adjacent pile bodies (1), and a supporting component (3) is connected to the coamings (2);
the support component (3) comprises a sliding block (31), a connecting plate (32), a supporting plate (33) and a conical rod (34), wherein a containing hole (21) is formed in the coaming (2), the sliding block (31) is slidably connected in the containing hole (21), one end of the connecting plate (32) is hinged to the sliding block (31), the other end of the connecting plate is hinged to the supporting plate (33), and the conical rod (34) is connected with the supporting plate (33), and is characterized in that: the novel storage device is characterized in that a clamping groove (331) is formed in the supporting plate (33), the connecting plate (32) is hinged to the inner wall of the clamping groove (331), a storage hole (332) is formed in the supporting plate (33), the conical rod (34) is rotatably connected with the inner wall of the storage hole (332) through a rotating rod, a locking component (4) for locking the conical rod (34) during storage is arranged between the supporting plate (33) and the conical rod (34), a blocking hole (211) is formed in the storage hole (21), a baffle plate (2111) is inserted in the blocking hole (211), and a blocking spring (2112) is connected between the baffle plate (2111) and the hole bottom of the blocking hole (211);
a vertical component (5) is arranged between the connecting plate (32) and the supporting plate (33), the vertical component (5) comprises a sleeve (51) and a fixing rod (52), a containing hole (321) is formed in the connecting plate (32), the sleeve (51) is hinged with the inner wall of the containing hole (321), the fixing rod (52) is in threaded connection with the sleeve (51), a fixing hole (3311) is formed in the clamping groove (331), and one end, far away from the sleeve (51), of the fixing rod (52) is in threaded connection with the fixing hole (3311);
a fixing mechanism (6) for improving stability of the coaming (2) and the pile body (1) when the coaming and the pile body (1) are positioned in a foundation pit is arranged between the sliding block (31) and the coaming (2), the fixing mechanism (6) comprises a fixing component (61) and a driving component (62), one end of the driving component (62) is connected with the sliding block (31), and the other end of the driving component is connected with the fixing component (61);
the fixing assembly (61) comprises an anchor rod (611), a first screw rod (612) and a limiting block (613), wherein a sliding hole (23) is formed in the surrounding plate (2), a limiting groove (231) is formed in the sliding hole (23), the anchor rod (611) is inserted into and slides in the sliding hole (23), the limiting block (613) is inserted into and slides in the limiting groove (231) and is connected with the anchor rod (611), a threaded hole (6111) is formed in the anchor rod (611), one end of the first screw rod (612) is connected with the threaded hole (6111) in a threaded mode, and the other end of the first screw rod is connected with the driving assembly (62) in a threaded mode.
The driving assembly (62) comprises a driving rod (621), a coil spring (622), a fixing plate (623), a pull rope (624), a driving gear (625) and a driven gear (626), wherein a first cavity (22) is formed in the surrounding plate (2), one end, far away from the anchor rod (611), of the screw rod penetrates into the first cavity (22), the fixing plate (623) is connected with the inner wall of the first cavity (22), a driving hole (6231) is formed in the fixing plate (623), the driving rod (621) is inserted into and is connected with the driving hole (6231) in a rotating mode, the coil spring (622) is sleeved on the driving rod (621), one end of the coil spring is connected with the driving rod (621), the other end of the coil spring is connected with the inner wall of the driving hole (6231), the driving gear (625) is coaxially sleeved on the driving rod (621), the driven gear (626) is coaxially sleeved on the first screw rod (612), the driving gear (625) is meshed with the driven gear (6231) and the other end of the driving rod (624) is meshed with the sliding block (624);
the locking assembly (4) comprises a ratchet wheel (41) and a pawl (42), the ratchet wheel (41) is coaxially sleeved on the rotating rod, the pawl (42) is rotationally connected with the inner wall of the storage hole (332), and the pawl (42) is clamped in a tooth slot of the ratchet wheel (41);
the pile body (1) is provided with a connecting block (11), the connecting block (11) is provided with a slot (111), the coaming (2) is inserted into the slot (111), an airtight mechanism (7) used for sealing between the coaming (2) and the connecting block (11) is arranged between the coaming (2) and the connecting block (11), the airtight mechanism (7) comprises an airtight component (72) and a linkage component (71), one end of the linkage component (71) is connected with the driving rod (621), and the other end of the linkage component is connected with the airtight component (72);
the linkage assembly (71) comprises a transmission belt (711) and a second screw (712), an airtight hole (24) is formed in the surrounding plate (2), the second screw (712) is rotationally connected with the inner wall of the airtight hole (24), the second screw (712) and the driving rod (621) are in transmission through the transmission belt (711), and the second screw (712) is connected with the airtight assembly (72);
the airtight assembly (72) comprises an airtight bag (721), a pressing plate (722), a connecting rod (723) and a pushing plate (724), a sealing hole (1111) is formed in the inner wall of the slot (111), the opening of the airtight bag (721) is covered at the opening of the airtight hole (24) and the airtight bag (721) is inserted into the sealing hole (1111), the pressing plate (722) and the pushing plate (724) are both in sliding connection in the airtight hole (24) and the connecting rod (723) is connected between the pressing plate (722) and the pushing plate (724), and the second screw (712) penetrates through the pushing plate (724) and is in threaded connection with the pushing plate (724).
2. A construction process based on the large-diameter foundation pit fender post of claim 1, which is characterized in that: the method comprises the following steps:
s1, arranging pile bodies (1) in a foundation pit in a surrounding mode and tightly attaching the pile bodies to the inner wall of the foundation pit;
s2, respectively and correspondingly inserting two ends of the coaming (2) into slots (111) on the connecting blocks (11) of the adjacent pile bodies (1);
s3, the baffle plate (2111) is transformed back into the baffle hole (211) through the compression shape of the baffle spring (2112);
s4, turning the connecting plate (32) towards one side far away from the containing hole (21) so that a certain angle is formed between the connecting plate (32) and the coaming (2);
s5, screwing the fixing rod (52) into the fixing hole (3311) so as to enable the supporting plate (33) to be in a vertical state with the coaming (2);
s6, separating the pawl (42) from the ratchet wheel (41), and then rotating the cone rod (34) out of the storage hole (332) until the cone rod (34) is perpendicular to the connecting plate (32), wherein the pawl (42) is clamped in a tooth slot of the ratchet wheel (41);
s7, sliding the sliding block (31) towards the bottom of the foundation pit until the cone rod (34) is inserted into the soil layer, and then fixing the sliding block (31) by using a bolt;
s8, in the sliding process of the sliding block (31), the sliding block (31) pulls the pull rope (624), at the moment, the pull rope (624) is loosened on the driving rod (621) to drive the driving rod (621) to rotate, the driving rod (621) rotates to sequentially drive the driving gear (625), the driven gear (626) and the first screw (612) to rotate, and the rotation of the first screw (612) pushes the anchor rod (611) to be inserted into a soil layer, so that stability of the coaming (2) and the pile body (1) when the coaming is positioned in a foundation pit is improved;
s9, in the process of rotating the driving rod (621), the second screw (712) rotates through the driving belt (711), the second screw (712) rotates to push the push plate (724) to slide towards the direction of the slot (111), at the moment, the pressure plate (722) also slides towards the direction of the slot (111), and a certain amount of air is originally sealed between the pressure plate (722) and the airtight bag (721), at the moment, the pressure plate (722) expands the airtight bag (721) by compressed air until the airtight bag (721) is inserted into the sealing hole (1111);
s10, after a foundation pit is not required to be protected, taking down a bolt of the sliding block (31), and pushing the sliding block (31) to one side far away from the bottom wall of the foundation pit until the conical rod (34) is taken out from the soil layer;
s11, screwing the fixing rod (52) out of the fixing hole (3311), and retracting the fixing rod (52) and the sleeve (51) into the accommodating hole (321);
s12, rotating the supporting plate (33) until the connecting plate (32) is arranged in the clamping groove (331);
s13, transforming the baffle plate (2111) back into the baffle hole (211) through the compression shape of the baffle spring (2112), then rotating the connecting plate (32) and the supporting plate (33) into the containing hole (21), and loosening the baffle plate (2111) to enable the connecting plate (32) and the supporting plate (33) not to easily rotate out of the containing hole (21);
s14, take out bounding wall (2) from slot (111) in, can separate bounding wall (2) and pile body (1), and supporting component (3) are accomodate in accomodate hole (21), need not to separate with bounding wall (2) to the space that supporting component (3) and bounding wall (2) occupy in the handling has been reduced.
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