CN112267474A - Foundation pit supporting structure and construction method thereof - Google Patents
Foundation pit supporting structure and construction method thereof Download PDFInfo
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- CN112267474A CN112267474A CN202011229912.8A CN202011229912A CN112267474A CN 112267474 A CN112267474 A CN 112267474A CN 202011229912 A CN202011229912 A CN 202011229912A CN 112267474 A CN112267474 A CN 112267474A
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- foundation pit
- pipe
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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
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
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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
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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Abstract
The application relates to the field of foundation pit support, in particular to a foundation pit support structure and a construction method thereof, and the specific scheme is as follows: including the guard plate of mutual concatenation of foundation ditch and polylith, be provided with a pillar on each guard plate, a lateral wall of guard plate is provided with the logical groove that supplies a pillar holding, it connects in logical inslot to strut the pipe can dismantle, it is provided with a plurality of infiltration holes to strut the one end that the pipe stretches out to leading to the groove, it is provided with the adjusting part who is used for adjusting the infiltration volume in infiltration hole to strut intraductal, the both ends of propping up the pillar are the blind end, be provided with drainage chamber in the guard plate, and drainage chamber is located the below that leads to the groove, it has the intercommunicating pore to lead to groove and drainage chamber intercommunication, one side of propping up the pillar is provided with the wash port, wash port and intercommunicating pore intercommunication, be provided with the storage water tank on the foundation ditch, the guard plate.
Description
Technical Field
The application relates to the field of foundation pit supporting, in particular to a foundation pit supporting structure and a construction method thereof.
Background
With the rapid development of modern building industry, high-rise and super high-rise buildings are increasing day by day, and because the upper portion load is built, compensation foundation is mostly adopted for high-rise and super high-rise buildings, and multi-layer basements are generally arranged to be beneficial to the stability of the buildings, but the foundation burial depth is large, the foundation pit is excavated deeply, particularly when a deep foundation pit is excavated in an area with a high underground water level, a soil body water-bearing layer is cut off, and underground water can continuously permeate into the foundation pit to cause quicksand and slope instability or reduce the bearing capacity of the foundation.
A current deep basal pit drainage structures, including the deep basal pit outer wall, the inside of deep basal pit outer wall is provided with inner wall concrete waterproof layer, and the outside that the inside of deep basal pit outer wall is close to inner wall concrete waterproof layer is provided with the inside steel pipe that supports of deep basal pit, the inside steel pipe that supports of deep basal pit is provided with inside guiding gutter with the hookup location department of inner wall concrete waterproof layer, the inside below of deep basal pit outer wall is provided with foundation ditch bottom concrete waterproof foundation, and the inside that the below of deep basal pit outer wall is close to foundation ditch bottom concrete waterproof foundation is provided with the following water storage chute.
In view of the above-mentioned related technologies, the inventor thinks that drainage pump will go out the ponding in the basin in order to accomplish foundation ditch drainage, and this kind of mode generally can only carry out the drainage to the foundation ditch bottom, and there is certain ponding volume also in the foundation ditch lateral wall, and the ponding of foundation ditch lateral wall can't be discharged, and when groundwater level was higher than the foundation ditch bottom surface, the foundation ditch lateral wall also born great lateral pressure, easily leads to the foundation ditch lateral wall to collapse.
Disclosure of Invention
In order to discharge accumulated water on the side wall of the foundation pit, the application provides a foundation pit supporting structure and a construction method thereof.
In a first aspect, the application provides a foundation pit supporting structure, adopts following technical scheme:
a foundation pit supporting structure comprises a foundation pit and a plurality of protection plates which are spliced with each other, wherein each protection plate is provided with a support pipe, one side wall of each protection plate is provided with a through groove for accommodating the support pipe, the support pipe is detachably connected in the through groove, one end of each support pipe penetrates through the through groove and is inserted into the side wall of the foundation pit, one end of each support pipe, which extends out of the through groove, is provided with a plurality of seepage holes, an adjusting component for adjusting the seepage amount of the seepage holes is arranged in each support pipe, both ends of each support pipe are closed ends, a drainage cavity is arranged in each protection plate and is positioned below the through groove, the through groove is communicated with the drainage cavity through a communication hole, one side of each support pipe is provided with a drainage hole, the drainage hole is communicated with the communication hole, and the foundation pit is provided with a water storage tank, the guard plate is kept away from be provided with the suction pump in the one end at the bottom of the foundation ditch hole, the suction pump with the intercommunication has the drain pipe between the storage water tank, the suction pump with the intercommunication has the drinking-water pipe between the drainage chamber.
Through adopting above-mentioned technical scheme, add a pillar pipe and make and strut the pipe and insert the foundation ditch lateral wall, with the connection ability of increase foundation ditch lateral wall and guard plate, add the infiltration hole on the pillar pipe simultaneously, during the ponding infiltration pillar pipe that makes the foundation ditch lateral wall, because be provided with the wash port on the pillar pipe, wash port and intercommunicating pore intercommunication, make ponding flow into the drainage chamber through the wash port from this, utilize the suction pump to take away the ponding of saving in the drainage chamber simultaneously and collect to the storage water tank, can remove the ponding of foundation ditch lateral wall from this, from the lateral pressure who reduces the foundation ditch lateral wall, make the foundation ditch lateral wall be difficult for collapsing.
Preferably, adjusting part includes regulating plate and rotation post, rotate the post rotate connect in strut intraductally, the regulating plate with be connected with the bracing piece between the rotation post, the one end of rotating the post is run through the blind end of supporting the pipe and is stretched out strut outside of the tubes, the end that stretches out of rotation post is provided with and is used for locking and unblock the locking subassembly of rotation post.
Through adopting above-mentioned technical scheme, rotate and rotate the post and make the regulating plate rotate, because the regulating plate is kept away from the one end of rotating the post and is contradicted in the inside wall of strutting the pipe, when rotating the post and rotating, make the regulating plate can open or open and close the infiltration hole, make the infiltration area who adjusts the infiltration hole from this to accelerate the drainage efficiency of foundation ditch lateral wall ponding.
Preferably, the locking assembly comprises a positioning rod and a first elastic clamping block, the positioning rod is hinged to the extending end of the rotating column, the first elastic clamping block is arranged at one end, far away from the end hinged to the rotating column, of the positioning rod, a plurality of protruding blocks corresponding to the first elastic clamping block are arranged at the closed end of the supporting tube, a first clamping hole is formed in each protruding block, and the first elastic clamping block is in clamping fit with one first clamping hole.
Through adopting above-mentioned technical scheme, when the regulating plate rotated to required position, the upset locating plate made the locating plate conflict in the lug, and first elasticity fixture block and one of them first card hole joint cooperation make from this rotate the post and lock fixedly, and the regulating plate is fixed in required position to the infiltration area in infiltration hole is adjusted to people.
Preferably, the both ends of regulating plate all set up the guide block, support intraductal two guide rings that are provided with, and two the guide ring is located respectively the both ends of regulating plate, two a lateral wall of guide ring is provided with respectively with each the guide way that the guide block corresponds, the guide block with the guide way cooperation of sliding.
Through adopting above-mentioned technical scheme, the guide block has played the guide effect to the regulating plate with the guide way cooperation of sliding, makes the regulating plate be difficult for the skew to walk the position along rotating the post rotation in-process to reinforcing regulating plate is at the stability of rotation in-process.
Preferably, one end of the protection plate, which is far away from the side wall of the foundation pit, is provided with a support pile, and a fastener for fixing the support pile is arranged between the support pile and the support pipe.
Through adopting above-mentioned technical scheme, the setting of supporting pile can play the reinforced effect of support to the guard plate, utilizes the fastener to fix supporting pile on the guard plate, has played the reinforcement supporting role to the guard plate from this, makes the guard plate can stabilize and fix at the foundation ditch lateral wall to strengthen the supporting capacity of guard plate, reduce the condition emergence that the foundation ditch lateral wall collapses.
Preferably, a closed end of the supporting pipe far away from the side wall of the foundation pit is provided with a limiting block, the limiting block is provided with a positioning pin and a spring, one side of the limiting block is provided with a positioning groove for the positioning pin to extend out and retract into, the side wall of the supporting pile is provided with a positioning hole corresponding to the positioning pin, and the positioning pin is in splicing fit with the positioning hole.
Through adopting above-mentioned technical scheme, add locating pin and spring, make the locating pin insert the locating hole to tentatively fix a position the support stake, so that the subsequent operation of fixing the support stake of staff.
Preferably, the outer side wall of the supporting tube is provided with a non-woven fabric, and the non-woven fabric is arranged at the water seepage hole.
Through adopting above-mentioned technical scheme, the non-woven fabrics has the characteristic of permeating water and not permeating soil to earth to the foundation ditch lateral wall has played the filter effect, makes earth be difficult for making drainage hole jam because of flowing into the pillar along with catchmenting.
Preferably, the lateral wall of a supporting pipe is provided with a sliding block, the through groove is far away from one end of the foundation pit is provided with a sliding groove, the bottom of the sliding groove is communicated with an arc-shaped groove, when the sliding block slides to the communication position of the sliding groove and the arc-shaped groove, the supporting pipe is rotated, and the sliding block is in clamping fit with the arc-shaped groove.
Through adopting above-mentioned technical scheme, the slider slides with the spout and is connected, makes to strut the pipe and tentatively fix a position in leading to the inslot, rotates to strut the pipe and makes slider and arc wall joint cooperation, makes to strut the pipe from this and installs in leading to the inslot, and when needs dismantle a pillar, only need the reverse rotation prop up the pipe make the slider break away from the arc wall can, easy operation.
In a second aspect, the foundation pit supporting construction method provided by the application adopts the following technical scheme:
a foundation pit supporting construction method comprises the following steps:
s1, conveying the protection plates to the foundation pit by using a crane, sequentially splicing the protection plates on the side wall of the foundation pit, penetrating one end of the supporting pipe into a through groove and inserting the supporting pipe into the side wall of the foundation pit, and installing the supporting pipe in the through groove;
s2, placing the support pile on a protection plate, wherein a limiting block is arranged at one closed end of the support pipe, the support pile is abutted against the limiting block and locked through a locking assembly, and the support pile is reinforced and fixed through the fastening piece;
s3, rotating a rotating column arranged in the supporting pipe to enable an adjusting plate arranged on the rotating column to adjust the water seepage area of the water seepage holes, so that accumulated water in the foundation pit enters the supporting pipe through the water seepage holes and is drained to a drainage cavity from the drainage holes to be stored;
and S4, driving the water suction pump to drain the accumulated water in the drainage cavity into the water storage tank, so that the accumulated water on the side wall of the foundation pit is pumped away.
Through adopting above-mentioned technical scheme, the installation that can be convenient for excavation supporting with the concatenation of polylith guard plate, then will strut the pipe and install in logical inslot, ponding in the foundation ditch is in the infiltration hole infiltration advances a guard tube, arrange to the drainage chamber by the wash port again, in order to save ponding to the drainage chamber, recycle the ponding of suction pump in with the drainage chamber and take away, thereby make foundation ditch lateral wall drainage, the earth that reduces the foundation ditch lateral wall is not hard up, it consolidates the guard plate to utilize the support stake, with the supporting capacity of reinforcing guard plate, reduce the emergence of the condition that the foundation ditch lateral wall collapses.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the support pipe is additionally provided with a water seepage hole, so that accumulated water on the side wall of the foundation pit permeates into the support pipe, the water drainage hole is communicated with the communication hole, the accumulated water flows into the water drainage cavity through the water drainage hole, and meanwhile, the water stored in the water drainage cavity is pumped away and collected to the water storage tank by using the water suction pump, so that the accumulated water on the side wall of the foundation pit can be drained away;
2. the rotating column is rotated to enable the adjusting plate to rotate, so that the water seepage area of the water seepage holes is adjusted, and the drainage efficiency of accumulated water on the side wall of the foundation pit is accelerated;
3. the setting of supporting pile can play the reinforced effect of support to the guard plate, adds locating pin and spring, makes the locating pin insert in the locating hole to the location of locking is carried out supporting pile.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a plan sectional view of an embodiment of the present application;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a diagram illustrating the assembly of the fender panels with the supporting tubes and piles according to the embodiment of the present invention;
FIG. 5 is an enlarged view of portion B of FIG. 4;
FIG. 6 is an enlarged view of portion C of FIG. 4;
FIG. 7 is an enlarged view of portion D of FIG. 4;
fig. 8 is a partial structural schematic view of a support pile and a cross bar according to an embodiment of the present application.
Description of reference numerals: 1. a foundation pit; 2. a protection plate; 3. a first splice block; 4. a second splice block; 5. a drainage cavity; 6. a through groove; 7. a support tube; 8. a slider; 9. a chute; 10. an arc-shaped slot; 11. a water seepage hole; 12. non-woven fabrics; 13. a steel wire; 14. a water storage tank; 15. a water pumping pipe; 16. a drain pipe; 17. a water pump; 18. a communicating pipe; 19. a drain hole; 20. a liquid level sensor; 21. an alarm; 22. an adjustment assembly; 221. an adjusting plate; 222. rotating the column; 23. pricking a tip part; 24. a support bar; 26. a guide block; 26. a guide ring; 27. a guide groove; 28. positioning a plate; 29. a first elastic clamping block; 30. a bump; 31. a first card hole; 32. supporting piles; 33. a limiting block; 34. positioning pins; 35. a spring; 36. positioning a groove; 37. positioning holes; 38. a bolt; 39. a reinforcing bar; 40. a support plate; 41. an anchor rod; 42. positioning a rod; 43. a positioning column; 44. a hook; 45. a second elastic clamping block; 46. a second card hole; 47. a cross bar; 48. a through hole; 49. a containing groove; 50. a threaded bore.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
The embodiment of the application discloses a foundation pit supporting structure and a construction method thereof. Referring to fig. 1, a supporting structure of foundation pit 1 includes guard plate 2 of mutual concatenation of foundation pit 1 and polylith, and in this embodiment, the laminating of polylith guard plate 2 is placed in the lateral wall of foundation pit 1. Two adjacent both ends that guard plate 2 is relative have first splice 3 and second splice 4 respectively integrated into one piece, and first splice 3 all sets up along the length direction of guard plate 2 with second splice 4. The first splicing block 3 is spliced and matched with the second splicing block 4, so that the protection plate 2 is convenient to position and install.
Referring to fig. 2, a through groove 6 is provided on a side surface of the protection plate 2 attached to the side wall of the foundation pit 1, and the through groove 6 is located at the center of the protection plate 2. Meanwhile, each protection plate 2 is provided with a cylindrical support pipe 7, and the support pipes 7 penetrate through the through grooves 6 and are inserted into the side wall of the foundation pit 1. The two ends of the supporting tube 7 are closed ends, when the supporting tube 7 is installed, the adjusting assembly 22 is placed in the supporting tube 7, and then the two circular plates are welded at the two ends of the supporting tube 7 in the length direction to form the closed ends. One end of the supporting pipe 7 inserted into the side wall of the foundation pit 1 is welded with a conical puncturing tip part 23 so that the supporting pipe 7 can be inserted into the soil on the side wall of the foundation pit 1. The support pipe 7 is detachably connected with the through groove 6, so that the support pipe 7 can be conveniently installed and detached.
Referring to fig. 2 and 5, the sliding block 8 is welded on the side wall of the supporting tube 7, the sliding block 8 is located at one end of the supporting tube 7 far away from the piercing tip portion 23, the groove wall of the through groove 6 is provided with a sliding groove 9, and the sliding groove 9 penetrates through the protection plate 2 from one side surface of the side wall of the foundation pit 1 along the length direction of the through groove 6. The bottom of the sliding groove 9 is communicated with an arc-shaped groove 10, and the arc-shaped groove 10 is arranged along the circumferential direction of the through groove 6. When the slider 8 slides to the communicating part of the sliding groove 9 and the arc-shaped groove 10, the supporting pipe 7 is rotated, the slider 8 is in clamping fit with the arc-shaped groove 10, and therefore the supporting pipe 7 is preliminarily positioned in the through groove 6.
Referring to fig. 2 and 3, each protection plate 2 is provided with a drainage cavity 5 therein, and the drainage cavity 5 is located below the through groove 6. Meanwhile, one side of the supporting pipe 7 extending out of the side wall of the foundation pit 1 is provided with a plurality of water seepage holes 11 which are arranged in a penetrating mode, and the plurality of water seepage holes 11 are located in the side wall of the supporting pipe 7 far away from the drainage cavity 5. The lateral wall of a support pipe 7 is provided with a non-woven fabric 12, and the non-woven fabric 12 is attached to the positions of the water seepage holes 11 to filter silt and reduce the occurrence of the condition that the water seepage holes 11 are blocked by the silt. When the non-woven fabric 12 is attached, the steel wire 13 may be wound around the side wall of the support tube 7, so that the non-woven fabric 12 is attached to and fixed to the side wall of the support tube 7, and the non-woven fabric 12 is not easily displaced. The through groove 6 is communicated with the top of the drainage cavity 5 to form a vertically-arranged communication hole 48, a drainage hole 19 is formed in one side wall, close to the drainage cavity 5, of the support pipe 7, when the support pipe 7 rotates, the sliding block 8 is in clamping fit with the arc-shaped groove 10, and the drainage hole 19 is communicated with the communication hole 48 in an aligning mode. In addition, be provided with storage water tank 14 on foundation ditch 1, the one end that protection plate 2 kept away from foundation ditch 1 hole bottom all is provided with suction pump 17, and suction pump 17's water inlet intercommunication has drinking-water pipe 15, and in the one end that drinking-water pipe 15 kept away from suction pump 17 ran through protection plate 2 to drainage chamber 5, and the delivery port intercommunication of suction pump 17 has drain pipe 16, and the one end and the storage water tank 14 intercommunication of water pump are kept away from to drain pipe 16.
Referring to fig. 2, a liquid level sensor 20 is arranged on one side wall of the drainage cavity 5 close to the top, an alarm 21 is arranged on one side wall of the water storage tank 14, and the liquid level sensor 20 is electrically connected with the alarm 21. When the liquid level sensor 20 detects that the water level of the drainage cavity 5 reaches a preset liquid level, the liquid level sensor 20 generates a trigger signal and sends an alarm 21, and the alarm 21 receives the trigger signal and sounds to inform surrounding workers to drive the water suction pump 17 to pump water in time, so that accumulated water in the drainage cavity 5 is drained into the water storage tank 14 to be collected in a unified mode.
Referring to fig. 3, in order to increase the water seepage efficiency of the water seepage holes 11, an adjusting assembly 22 for adjusting the water seepage amount of the water seepage holes 11 is arranged in the supporting pipe 7, and the adjusting assembly 22 comprises an adjusting plate 221 and a rotating column 222. The rotating column 222 is arranged along the length direction of the supporting tube 7, two ends of the rotating column 222 are connected with two closed end bearings of the supporting tube 7, and one end of the rotating column 222 penetrates through one closed end of the supporting tube 7, which is far away from the puncturing point part 23, and extends out of the supporting tube 7. Meanwhile, the adjusting plate 221 is located at one side of the rotating column 222, in this embodiment, the adjusting plate 221 is an arc-shaped plate and a side surface of the adjusting plate 221 away from the rotating column 222 is attached to the inner pipe wall of the supporting pipe 7. In addition, the support rods 24 are connected between the adjustment plate 221 and the rotation column 222, preferably by welding, and the number of the support rods 24 is two, and the two support rods 24 are respectively located at two ends of the adjustment plate 221 in the length direction, in order to keep the adjustment plate 221 stable when rotating.
It should be noted that the guide blocks 26 are connected to both ends of the adjusting plate 221 in the length direction, and in this embodiment, the connection manner may be welding or integral molding. Two guide rings 26 are welded in the support tube 7, and the two guide rings 26 respectively adjust two ends of the plate 221 in the length direction. Two guide ring 26 relative both sides surface has all seted up guide way 27, and guide way 27 is the ring channel. The guide block 26 is inserted into the guide groove 27 and slidably engaged with the guide groove 27, so as to guide the adjustment plate 221, and make the adjustment plate 221 more stable when rotating.
Referring to fig. 6, simultaneously, the end that stretches out of rotation post 222 is provided with the locking subassembly that is used for locking and unlocking rotation post 222, in this embodiment, the locking subassembly includes locating lever 42 and first elasticity fixture block 29, locating lever 42 articulates in the end that stretches out of rotation post 222, first elasticity fixture block 29 welds in locating lever 42 and keeps away from the one end articulated with rotation post 222, in addition, the one closed end circumference welding that the punchpoint portion 23 was kept away from to the support pipe 7 has polylith lug 30, and polylith lug 30 rotates the post 222 and sets up for rotating circumference, the polylith lug 30 keeps away from the one end of support pipe 7 and has all seted up first calorie of hole 31. The rotation column 222 is rotated to rotate the adjustment plate 221, the positioning plate 28 is turned over to make the positioning plate 28 abut against the projection 30 corresponding to the requirement, at this time, the first elastic clamping block 29 is in clamping fit with the first clamping hole 31 arranged on the projection 30, so that the rotation column 222 is locked, the adjustment plate 221 is fixed at the rotated position, and the water seepage area of the plurality of water seepage holes 11 is adjusted.
Referring to fig. 4 and 6, after the installation of the supporting pipe 7 is completed, the operation of reinforcing and supporting the shielding plate 2 is performed. Consequently, the one end of keeping away from foundation ditch 1 lateral wall at guard plate 2 is provided with many and is the support stake 32 of vertical setting, and many support stakes 32 are placed along foundation ditch 1 lateral wall in proper order, and the one end anchor of each support stake 32 is in the bottom of foundation ditch 1 hole. In the present embodiment, one support pile 32 corresponds to one support tube 7. Two limiting blocks 33 are welded at one closed end of each supporting pipe 7 far away from the puncturing point part 23, and the two limiting blocks 33 are respectively positioned at two ends of the rotating column 222. The support piles 32 are disposed between the two stoppers 33, and are in interference fit with the opposite side surfaces of the two stoppers 33. Simultaneously, be provided with locating pin 34 and spring 35 on each stopper 33, the constant head tank 36 that supplies locating pin 34 to stretch out and the retraction is all seted up on the relative both sides surface of two stoppers 33, and constant head tank 36 sets up along stopper 33's width direction. The spring 35 is disposed in the positioning slot 36, and two ends of the spring 35 are respectively and fixedly connected to the bottoms of the positioning pin 34 and the positioning slot 36. In addition, both side walls of the support pile 32 in the width direction are provided with positioning holes 37 corresponding to the positioning pins 34, and the positioning pins 34 are in insertion fit with the positioning holes 37, so as to perform preliminary positioning on the support pile 32. The supporting pile 32 has a receiving groove 49 formed on a side surface thereof adjacent to the fender 2 for receiving the extending end of the rotating post 222 and the locking member, so that the supporting pile 32 is attached to the fender 2.
Referring to fig. 4 and 8, further, a plurality of sets of fasteners for fixing the support piles 32 are provided between the support piles 32 and the shield plate 2, the fasteners being bolts 38 provided along the length direction of the support piles 32. Support stake 32 and deviate from a side surface of protection plate 2 and offer the through-hole 48 with bolt 38 one-to-one, and through-hole 48 is the setting of running through, and a side surface of protection plate 2 that deviates from foundation ditch 1 offers the screw hole 50 with through-hole 48 one-to-one, and each bolt 38 runs through corresponding through-hole 48 and the 50 threaded connection of screw hole that corresponds, makes from this on the firm fixed protection plate 2 of support stake 32.
Referring to fig. 4 and 7, it should be noted that a cross bar 47 is welded on a surface of one side of the support pile 32 away from the accommodating groove 49, the side of the cross bar 47 away from the support pile 32 is hinged with a plurality of reinforcing rods 39, and the plurality of reinforcing rods 39 are arranged along a length direction of the cross bar 47. The supporting plate 40 is welded at one end, far away from the cross rod 47, of the reinforcing rod 39, the anchor rod 41 is welded on the surface of one side, abutted to the pit bottom of the foundation pit 1, of the supporting plate 40, and the anchor rod 41 is anchored at the pit bottom of the foundation pit 1, so that the reinforcing rod 39 is fixed at the pit bottom of the foundation pit 1. In addition, in order to enhance the stability between the reinforcing rod 39 and the supporting pile 32, two positioning rods 42 are rotatably connected to a side surface of the supporting pile 32 away from the protection plate 2, the two positioning rods 42 are disposed along the width direction of the supporting pile 32, and a hook 44 disposed in a J shape is integrally formed at one end of the positioning rod 42 away from the supporting pile 32. Correspondingly, the positioning columns 43 are welded at the two ends of the reinforcing rod 39 in the width direction, and the positioning rods 42 are rotated to enable the draw hooks to be buckled on the positioning columns 43, so that the reinforcing rod 39, the supporting piles 32 and the positioning rods 42 form right-angled triangles, and therefore the protection plate 2 is reinforced.
In addition, in order to make the hook 44 not easily separate from the positioning column 43, a second elastic fixture block 45 is welded on the surface of one side of the hook 44 abutting against the positioning column 43, a second clamping hole 46 corresponding to the second elastic fixture block 45 is formed in the side wall of the positioning column 43, and the second elastic fixture block 45 is in clamping fit with the corresponding second clamping hole 46, so as to position the hook 44.
Based on a foundation pit 1 supporting structure, a foundation pit 1 supporting construction method is provided, and the method comprises the following specific steps:
s1, sequentially splicing a plurality of protection plates 2 on the side wall of the foundation pit 1, penetrating one end, provided with a barbed point 23, of the support pipe 7 into the through groove 6, sliding and matching a sliding block 8 welded on the support pipe 7 with a sliding groove 9 arranged on the through groove 6, wherein the bottom of the sliding groove 9 is communicated with an arc-shaped groove 10, and the sliding block 8 is clamped and matched with the arc-shaped groove 10, so that the support pipe 7 is fixed on the protection plates 2;
s2, placing the support pile 32 on the protection plate 2, welding two limiting blocks 33 at one closed end of the support pipe 7, enabling the support pile 32 to be installed between the two limiting blocks 33, enabling the two limiting blocks 33 to be abutted against the support pile 32, enabling the positioning pin 34 installed on the limiting blocks 33 to be in inserted fit with the positioning hole 37 formed in the support pile 32, and reinforcing and fixing the support pile 32 by using the bolt 38;
s3, overturning the reinforcing rod 39 to enable the reinforcing rod 39 and the support pile 32 to form a certain support angle, welding a support plate 40 at one end of the reinforcing rod 39, which is far away from the support pile 32, and enabling an anchor rod 41 arranged on the support plate 40 to be anchored at the bottom of the foundation pit 1;
s4, rotating the rotating column 222 to enable the adjusting plate 221 arranged in the supporting pipe 7 to rotate, then overturning the positioning plate 28 to enable the first elastic clamping block 29 to be in clamping fit with the first clamping hole 31 required to correspond, enabling the adjusting plate 221 to be fixed at a required position to adjust the water seepage area of the water seepage hole 11, enabling accumulated water in the foundation pit 1 to enter the supporting pipe 7 through the water seepage hole 11, and discharging the accumulated water to the drainage cavity 5 through the drainage hole 19 for storage;
s5, installing a water pump 17 at one end, far away from the bottom of the foundation pit 1, of the protection plate 2, enabling a water pumping pipe 15 to penetrate through the protection plate 2 and extend into the water drainage cavity 5, communicating a water drainage pipe 16 between the water pump 17 and the water storage tank 14, and driving the water pump 17 to pump accumulated water in the water drainage cavity 5 to the water storage tank 14.
The implementation principle of the supporting structure and the construction method of the foundation pit 1 in the embodiment of the application is as follows: add the pillar 7 and make the pillar 7 insert the lateral wall of foundation ditch 1, in order to increase the capacity of being connected of lateral wall of foundation ditch 1 and guard plate 2, add infiltration hole 11 in the pillar 7 simultaneously, during the ponding infiltration pillar 7 that makes the lateral wall of foundation ditch 1, because be provided with wash port 19 on the pillar 7, wash port 19 and intercommunicating pore 48 intercommunication, make ponding flow into in the drainage chamber 5 through wash port 19 from this, utilize suction pump 17 to take away the ponding of saving in drainage chamber 5 simultaneously and collect to storage water tank 14, can drain away the ponding of lateral wall of foundation ditch 1 from this.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a foundation ditch supporting construction, includes guard plate (2) of mutual concatenation of foundation ditch and polylith, its characterized in that: each protection plate (2) is provided with a supporting pipe (7), one side wall of each protection plate (2) is provided with a through groove (6) for accommodating the supporting pipe (7), the supporting pipe (7) is detachably connected in the through groove (6), one end of the supporting pipe (7) penetrates through the through groove (6) and is inserted into the side wall of the foundation pit (1), one end of the supporting pipe (7) extending out of the through groove (6) is provided with a plurality of water seepage holes (11), an adjusting component (22) for adjusting the water seepage amount of the water seepage holes (11) is arranged in the supporting pipe (7), two ends of the supporting pipe (7) are closed ends, a drainage cavity (5) is arranged in each protection plate (2), the drainage cavity (5) is positioned below the through groove (6), the through groove (6) is communicated with the drainage cavity (5) to form a 48), one side of support pipe (7) is provided with wash port (19), wash port (19) with intercommunicating pore (48) intercommunication, be provided with storage water tank (14) on foundation ditch (1), guard plate (2) are kept away from be provided with suction pump (17) in the one end at the bottom of foundation ditch (1) hole, suction pump (17) with communicate between storage water tank (14) has drain pipe (16), suction pump (17) with communicate between drainage chamber (5) has drinking-water pipe (15).
2. A foundation pit supporting construction according to claim 1, wherein: the adjusting assembly (22) comprises an adjusting plate (221) and a rotating column (222), the rotating column (222) is rotatably connected to the inside of the supporting tube (7), the adjusting plate (221) is connected with a supporting rod (24) between the rotating column (222), one end of the rotating column (222) penetrates through the closed end of the supporting tube (7) and extends out of the supporting tube (7), and the extending end of the rotating column (222) is provided with a locking assembly used for locking and unlocking the rotating column (222).
3. A foundation pit supporting construction according to claim 2, wherein: the locking assembly comprises a positioning rod (42) and a first elastic clamping block (29), the positioning rod (42) is hinged to the extending end of the rotating column (222), the first elastic clamping block (29) is arranged at one end, far away from the rotating column (222), of the positioning rod (42), a plurality of protruding blocks (30) corresponding to the first elastic clamping block (29) are arranged at the closed end of the supporting tube (7), first clamping holes (31) are formed in each protruding block (30), and the first elastic clamping block (29) is in clamping fit with one of the first clamping holes (31).
4. A foundation pit supporting construction according to claim 1, wherein: both ends of regulating plate (221) all set up guide block (26), be provided with two guide ring (26) in support pipe (7), and two guide ring (26) are located respectively the both ends of regulating plate (221), two a lateral wall of guide ring (26) is provided with respectively with each guide way (27) that guide block (26) correspond, guide block (26) with guide way (27) sliding fit.
5. A foundation pit (1) supporting construction according to claim 1, characterized in that: one end, far away from the side wall of the foundation pit (1), of the protection plate (2) is provided with a support pile (32), and a fastener for fixing the support pile (32) is arranged between the support pile (32) and the support pipe (7).
6. A foundation pit (1) supporting construction according to claim 5, characterized in that: keep away from in support pipe (7) a blind end of foundation ditch (1) lateral wall is provided with stopper (33), be provided with locating pin (34) and spring (35) on stopper (33), one side of stopper (33) is provided with the confession locating slot (36) that locating pin (34) stretched out and the retraction, the lateral wall of support stake (32) be provided with locating hole (37) that locating pin (34) correspond, locating pin (34) with locating hole (37) are pegged graft the cooperation.
7. A foundation pit supporting construction according to claim 1, wherein: the outer side wall of the supporting pipe (7) is provided with a non-woven fabric (12), and the non-woven fabric (12) is arranged at the position of the water seepage hole (11).
8. A foundation pit supporting construction according to claim 1, wherein: the lateral wall of a supporting pipe (7) is provided with a sliding block (8), the through groove (6) is kept away from one end of the foundation pit (1) is provided with a sliding groove (9), the bottom of the sliding groove (9) is communicated with an arc-shaped groove (10), when the sliding block (8) slides to the sliding groove (9) and the communication position of the arc-shaped groove (10), the supporting pipe (7) rotates, and the sliding block (8) is in clamping fit with the arc-shaped groove (10).
9. A method of retaining and constructing a foundation pit according to any one of claims 1 to 8, including the steps of:
s1, conveying a plurality of protection plates (2) to the foundation pit (1) by using a crane, sequentially splicing the protection plates (2) on the side wall of the foundation pit (1), penetrating one end of the supporting pipe (7) into a through groove (6) and inserting into the side wall of the foundation pit (1), and installing the supporting pipe (7) in the through groove (6);
s2, placing the support pile (32) on the protection plate (2), arranging a limiting block (33) at one closed end of the support pipe (7), enabling the support pile (32) to be abutted against the limiting block (33) and locked through a locking assembly, and reinforcing and fixing the support pile (32) by using the fastener;
s3, rotating a rotating column (222) arranged in the supporting pipe (7), adjusting a water seepage area of the water seepage hole (11) by an adjusting plate (221) arranged on the rotating column (222), and enabling accumulated water in the foundation pit (1) to enter the supporting pipe (7) through the water seepage hole (11) and be drained to a drainage cavity (5) through the drainage hole (19) for storage;
s4, driving the water suction pump (17) to discharge the accumulated water in the drainage cavity (5) to the water storage tank (14), so that the accumulated water on the side wall of the foundation pit (1) is pumped away.
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| CN114150671A (en) * | 2021-11-08 | 2022-03-08 | 鸿厦建设有限公司 | Building foundation pit supporting and drainage structure |
| CN114150672A (en) * | 2021-11-09 | 2022-03-08 | 王科彩 | Suspended bidirectional building foundation pit supporting device and supporting method |
| CN114575353A (en) * | 2022-03-04 | 2022-06-03 | 长江精工钢结构(集团)股份有限公司 | Foundation pit steel structure supporting system and construction method thereof |
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| CN115354675A (en) * | 2022-09-13 | 2022-11-18 | 福建金鼎建筑发展有限公司 | Reinforced slope structure |
| CN116290006A (en) * | 2023-05-18 | 2023-06-23 | 中铁二十三局集团有限公司 | Composite protective material foundation pit supporting system and construction method |
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| CN116290006B (en) * | 2023-05-18 | 2023-09-08 | 中铁二十三局集团有限公司 | Composite protective material foundation pit supporting system and construction method |
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