CN114960714A - Near-water-source foundation pit drainage seepage-proofing structure and construction method - Google Patents
Near-water-source foundation pit drainage seepage-proofing structure and construction method Download PDFInfo
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- CN114960714A CN114960714A CN202210741891.0A CN202210741891A CN114960714A CN 114960714 A CN114960714 A CN 114960714A CN 202210741891 A CN202210741891 A CN 202210741891A CN 114960714 A CN114960714 A CN 114960714A
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 158
- 239000004576 sand Substances 0.000 claims description 39
- 230000000694 effects Effects 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 19
- 238000001914 filtration Methods 0.000 claims description 18
- 238000005086 pumping Methods 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 238000004873 anchoring Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 3
- 101150054854 POU1F1 gene Proteins 0.000 description 9
- 239000003651 drinking water Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
-
- 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
-
- 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
-
- 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
- E02D19/08—Restraining of underground water by employing open ditches arranged below the level of the water
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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
- E02D19/22—Lining sumps in trenches or other 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
- E02D5/74—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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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sewage (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a near water source foundation pit drainage seepage-proofing structure and a construction method, belonging to the technical field of foundation pit construction.
Description
Technical Field
The invention relates to the technical field of foundation pit construction, in particular to a near water source foundation pit drainage anti-seepage structure and a construction method.
Background
Measures such as soil retaining structures, underground water control, environmental protection and the like required for ensuring the safety and stability of an underground space formed by downward excavation of the ground during the construction of an underground structure are called as foundation pit engineering; the foundation pit engineering is a system engineering integrating geological engineering, geotechnical engineering, structural engineering and geotechnical testing technology; the method mainly comprises engineering investigation, supporting structure design and construction, earth excavation and backfilling, underground water control, information construction, surrounding environment protection and the like.
After the foundation pit is dug, the problem of water seepage often appears in the foundation pit, can exert an influence to normal building process at the initial stage of carrying out the construction, and the silt that carries in the process of drawing water foundation pit can lead to the drain pipe to block up to influence the effect and the efficiency of drainage.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a foundation pit drainage seepage-proofing structure which can improve the foundation pit drainage efficiency, avoid blockage from influencing the drainage effect and simultaneously avoid the foundation pit water seepage problem in the drainage process.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a near water source foundation pit drainage seepage-proofing structure which comprises a foundation pit, wherein waterproof baffles are arranged on the periphery and the bottom of the foundation pit, a protective frame is also arranged on the waterproof baffles on the periphery of the foundation pit, fastening anchor rods are arranged on the protective frame, the fastening anchor rods penetrate through the waterproof baffles, and a plurality of groups of anchoring strips are arranged on the outer wall of the protective frame at equal intervals;
the utility model discloses a foundation ditch, including foundation ditch, escape canal, drainage ditch, be provided with drainage device in the sump pit, drainage device inside is provided with the part of drawing water and avoids the foundation ditch inner wall to take place to collapse, leads to silt to remain in escape canal and sump pit, has influenced the promptness of foundation ditch drainage, leads to the time limit for a project extension, has increased staff's working strength simultaneously.
The protection frame comprises a plurality of groups of transverse fixing rods and vertical fixing rods which are mutually staggered, and a waterproof sealing layer is arranged in a rectangular area formed by the transverse fixing rods and the vertical fixing rods in a staggered mode and coated on a waterproof baffle, so that the anti-seepage effect is enhanced, and the collapse of the inner wall of a foundation pit is avoided.
The invention has the preferable technical scheme that the sharp pointed end of the fastening anchor rod penetrates through the intersection of the transverse fixing rod and the vertical fixing rod and is arranged in the pit body, the fastening anchor rods are sequentially distributed from top to bottom and gradually lengthen along with the downward length of the inner wall of the foundation pit, the supporting force of the inner wall of the foundation pit is increased, and the risk of collapse is reduced.
The drainage device comprises a water collecting tank arranged in a water collecting pit, a sealing cover with a handle is arranged on the top side of the water collecting tank in a sealing mode, filtering holes are formed in the side wall, corresponding to drainage ditches on the two sides, of the water collecting tank, a sand removing device is arranged on the sealing cover through a fixing frame, and the water pumping component is located in the water collecting tank, so that the phenomenon that accumulated water carries silt in the process of entering the water collecting tank to cause drainage blockage is avoided.
The invention has the preferable technical scheme that a water guide plate is arranged on the inner wall of the water collecting tank below the corresponding filtering holes, and one side of the water guide plate is connected with a filter screen, so that water enters the bottom of the water collecting tank through the filter screen, the sediment in the accumulated water is filtered, and the influence on the drainage effect and the drainage efficiency is avoided.
The sand removing device comprises rotating shafts which are rotatably connected with support legs at two ends of a fixing frame, one end of each rotating shaft is connected with a motor, a guide cylinder is rotatably connected between the two groups of rotating shafts, a sand removing plate which is connected along the outer wall of the guide cylinder in a sliding mode is arranged between the outer walls of the two groups of rotating shafts, a sand inlet is formed in the top side of the guide cylinder, and a plurality of groups of sand filtering holes are formed in the outer wall of the guide cylinder, so that the sand removing effect is realized, the drainage efficiency is further ensured, and the blockage caused by sand is avoided.
The invention has the preferable technical scheme that the two sides of the sand removing area of the sand removing plate are provided with the material guide plates, and the material guide plates are connected with the two ends of the sand inlet to finish the removal of the sediment in the accumulated water and improve the sand removing efficiency.
The invention has the preferable technical scheme that the water pumping component comprises water pumping pumps arranged in the water collecting tanks, one ends of the water pumping pumps are connected with water pumping pipes, water collecting pipes are connected between the water pumping pipes in the two groups of water collecting tanks, and water drainage pipes are connected to the water collecting pipes, so that accumulated water in the foundation pit is discharged, and influence of the accumulated water on later construction is avoided.
A construction method of a near water source foundation pit drainage anti-seepage structure comprises the following steps:
step 1: according to the requirements of a construction scheme, after the position of a foundation pit to be excavated is marked, excavating, wherein the inner wall of the excavated foundation pit inclines towards the bottom of the foundation pit;
step 2: four mutually communicated drainage ditches are excavated downwards around the bottom of the foundation pit, and the intersection of the drainage ditches is continuously excavated downwards to form a water collection pit;
and step 3: waterproof baffles are arranged along the periphery and the bottom of the inner wall of the foundation pit, a protective frame formed by transverse fixing rods and vertical fixing rods which are staggered with each other is fixed on the waterproof baffles through fastening anchor rods, and a waterproof sealing layer is coated in a rectangular interval formed by the transverse fixing rods and the vertical fixing rods in a staggered manner, so that the waterproof baffles are fixed, and the anti-seepage effect is further enhanced;
and 4, step 4: fixing the sand removing device on the sealing cover through the fixing frame, placing the water collecting tank with the sealing cover in the water collecting pit, placing the water suction pump at the bottom of the water collecting tank, wherein the position where the water suction pump is placed is lower than the depth of the drainage ditch, connecting the water suction pipe, the water collecting pipe and the water drainage pipe in sequence, and then connecting the water inlet end of the water suction pipe with the water suction pump, wherein the water drainage pipe is fixed on the protection frame through the fixing piece;
and 5: water in the drainage ditch enters the water collecting pit, then enters the water collecting tank through the filtering holes, enters the bottom of the water collecting tank through the filtering net under the action of the water guide plate, and is pumped out by starting the water pump and discharged from the drainage pipe.
Through the technical scheme, realized when ponding takes place at the foundation ditch, can in time discharge the ponding in the foundation ditch, utilize waterproof baffle's effect can avoid the foundation ditch to take place the problem of infiltration before the drainage, the use of cooperation protection frame and fastening stock, the supporting role of foundation ditch inner wall has been strengthened, reduce the risk that takes place to collapse, guarantee to accomplish the getting rid of to ponding, utilize the sand removal device to clear away the silt on ponding and the header tank outer wall, avoid ponding to carry silt to cause the jam to the drain pipe from the drain pipe discharge in-process, thereby influence the efficiency and the drainage effect of drainage.
The invention has the beneficial effects that: according to the invention, through the water pumping effect of the water pump, water entering the water collection tank from the drainage ditch through the water collection pit is pumped and discharged outwards in time, so that unnecessary influence of accumulated water on later construction is avoided, the efficiency and effect of water drainage are ensured, during water drainage, the accumulated water enters the water collection tank through the filter holes to be preliminarily removed of silt, and enters the bottom of the water collection tank after being filtered again through the filter screen under the action of the water guide plate, so that the accumulated water is pumped and discharged from the water drainage pipe by the water pump, the blockage of the water drainage pipe due to accumulation of silt is avoided, and the water drainage efficiency is improved; the waterproof baffle arranged on the inner wall of the foundation pit can avoid the water seepage condition in the foundation pit, and through the cooperation of the protective frame and the fastening anchor rod, the supporting force of the inner wall of the foundation pit is increased, the inner wall of the foundation pit is prevented from collapsing, silt is caused to remain in the drainage ditch and the water collecting pit, the timeliness of foundation pit drainage is influenced, the construction period is prolonged, and the working strength of workers is increased.
The invention provides a foundation pit drainage seepage-proofing structure which can improve the drainage efficiency of a foundation pit, avoid blockage from influencing the drainage effect and simultaneously avoid the problem of water seepage of the foundation pit in the drainage process.
Drawings
FIG. 1 is a schematic view of a foundation pit drainage and seepage prevention structure provided in an embodiment of the invention;
FIG. 2 is a schematic view of a drain configuration provided in an embodiment of the present invention;
FIG. 3 is a side view of a sand removing device according to an embodiment of the present invention;
fig. 4 is a sectional view showing a structure of a sand removing device according to an embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a foundation pit; 11. a waterproof baffle; 12. a protective frame; 13. fastening an anchor rod; 14. an anchoring strip; 15. a waterproof sealing layer; 2. a drainage ditch; 3. a sump; 4. a water discharge device; 41. a water collection tank; 42. a sealing cover; 43. a handle; 44. a filtration pore; 5. a water pumping component; 51. a water pumping pipe; 52. a water collection pipe; 53. a drain pipe; 54. a water pump; 6. a fixed mount; 7. a sand removal device; 71. a guide cylinder; 72. a rotating shaft; 73. a sand removal plate; 731. a material guide plate; 74. a motor; 75. a sand inlet; 76. filtering sand holes; 8. a water guide plate; 9. and (5) filtering the screen.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
A near water source foundation pit drainage seepage-proofing structure comprises a foundation pit 1, waterproof baffles 11 are arranged on the periphery and the bottom of the foundation pit 1, protective frames 12 are further arranged on the waterproof baffles 11 on the periphery of the foundation pit 1, fastening anchor rods 13 are arranged on the protective frames 12, the fastening anchor rods 13 penetrate through the waterproof baffles 11, a plurality of groups of anchoring strips 14 are arranged on the outer walls of the fastening anchor rods at equal intervals, drainage ditches 2 which are mutually communicated are arranged on the periphery of the bottom of the foundation pit 1, water collection pits 3 are arranged at the intersections of the drainage ditches 2, a drainage device 4 is arranged in each water collection pit 3, a water pumping component 5 is arranged in each drainage device 4, water entering the drainage device 4 from the drainage ditches 2 through the water collection pits 3 is pumped outwards and drained in time through the matching of the water pumping components 5 and the drainage device 4, unnecessary influence on later-stage construction is avoided, and drainage efficiency and effect are ensured, set up the condition that produces the infiltration in can avoiding foundation ditch 1 by waterproof baffle 11 on 1 inner wall of foundation ditch, through the cooperation of protection frame 12 and fastening stock 13, avoid 1 inner wall of foundation ditch to take place to collapse, lead to silt to remain in escape canal 2 and sump pit 3, influenced the promptness of 1 drainage of foundation ditch, lead to the time limit for a project time extension, increased staff's working strength simultaneously.
As a possible embodiment of this scheme, it is preferred, protection frame 12 includes horizontal dead lever and the vertical dead lever that a plurality of groups crisscross each other, the rectangle interval that horizontal dead lever and vertical dead lever are crisscross to be formed is provided with waterproof sealing layer 15, and coats on waterproof baffle 11, through the protection frame 12 of crisscross setting, can improve waterproof baffle 11's fastening nature to cooperation waterproof sealing layer 15's effect, strengthen the prevention of seepage effect on the one hand, on the other hand avoids 1 inner wall of foundation ditch to take place the condition of collapsing.
As a possible implementation manner of this scheme, it is preferred, the spine end of fastening stock 13 passes horizontal dead lever and the crossing department of vertical dead lever to set up in the internal portion of pit, fastening stock 13 distributes from last to down in proper order, and lengthens gradually along with the downward length of foundation ditch 1 inner wall, through the fastening stock 13 that sets gradually, has increased the bearing capacity of foundation ditch 1 inner wall, reduces the risk of collapsing.
As a possible implementation of this scheme, it is preferred, drainage device 4 is including setting up header tank 41 in sump 3, header tank 41 top side seal is provided with the sealed lid 42 that has handle 43, be provided with filtration pore 44 on the lateral wall that header tank 41 corresponds both sides escape canal 2, sealed lid 42 is last to be provided with sand removal device 7 through mount 6, part 5 that draws water is located inside header tank 41, and ponding in the escape canal 2 gets into header tank 41 under the effect of filtration pore 44 through sump 3, avoids ponding to get into header tank 41's in-process to carry silt, causes the drainage to block up, can take out drainage device 4 through handle 43 simultaneously and clear up.
As a possible embodiment of this scheme, it is preferred, the below that the inner wall of header tank 41 corresponds to cross filtration hole 44 is provided with water guide plate 8, water guide plate 8 one side is connected with filter screen 9, makes water get into header tank 41 bottom through filter screen 9, and the ponding after filtering through filtration hole 44 gets into the bottom of header tank 41 through the secondary filtration of filter screen 9 under the effect of water guide plate 8, guarantees to filter the silt of ponding, avoids influencing drainage effect and drainage efficiency.
As a possible embodiment of this scheme, it is preferred, sand removal device 7 includes rotates the pivot 72 of being connected with 6 both ends support legs of mount, pivot 72 one end is connected with motor 74, and is two sets of rotate between the pivot 72 and be connected with guide 71, and is two sets of be provided with along guide 71 outer wall sliding connection's sand removal plate 73 between the pivot 72 outer wall, guide 71 top side is provided with into husky mouth 75, guide 71 outer wall is provided with a plurality of groups and strains husky hole 76, and starter motor 74 makes pivot 72 drive sand removal plate 73 and rotates, collects silt in the ponding and the silt on the header 41 outer wall in guide 71, realizes the effect of removing sand, has further guaranteed the efficiency of drainage, avoids silt to cause the jam.
As a possible implementation manner of this scheme, preferably, the two sides of the sand removing area of the sand removing plate 73 are provided with the guide plates 731, and the guide plates 731 are connected with two ends of the sand inlet 75, so as to ensure that the silt on the sand removing plate 73 enters the guide cylinder 71 from the sand inlet 75 through the guide plates 731, complete the removal of the silt in the accumulated water, and improve the sand removing efficiency.
As a possible embodiment of this scheme, it is preferred, part 5 draws water is including setting up in the inside suction pump 54 of header tank 41, suction pump 54 one end is connected with drinking-water pipe 51, is connected with collector pipe 52 between the drinking-water pipe 51 in two sets of header tanks 41, be connected with drain pipe 53 on the collector pipe 52, start suction pump 54, ponding through drinking-water pipe 51 and concentrate in collector pipe 52, discharge from drain pipe 53 at last, realize the discharge to foundation ditch 1 ponding, avoid ponding to influence the later stage construction.
A construction method of a near water source foundation pit drainage anti-seepage structure comprises the following steps:
step 1: according to the requirements of a construction scheme, after marking the position of a foundation pit 1 to be excavated, excavating, wherein the inner wall of the excavated foundation pit 1 inclines towards the bottom of the foundation pit 1;
step 2: four mutually communicated drainage ditches 2 are excavated downwards around the bottom of the foundation pit 1, and a water collection pit 3 is formed by continuously excavating downwards at the intersection of the drainage ditches 2;
and 3, step 3: waterproof baffles 11 are arranged along the periphery and the bottom of the inner wall of the foundation pit 1, a protective frame 12 formed by transverse fixed rods and vertical fixed rods which are mutually staggered is fixed on the waterproof baffles 11 through fastening anchor rods 13, and a waterproof sealing layer 15 is coated in a rectangular interval formed by the transverse fixed rods and the vertical fixed rods in a staggered manner so as to fix the waterproof baffles 11 and further strengthen the anti-seepage effect;
and 4, step 4: fixing the sand removing device 7 on the sealing cover 42 through the fixing frame 6, placing the water collecting tank 41 with the sealing cover 42 in the water collecting pit 3, placing the water suction pump 54 at the bottom of the water collecting tank 41, wherein the position where the water suction pump 54 is placed is lower than the depth of the drainage ditch 2, connecting the water suction pipe 51, the water collecting pipe 52 and the drainage pipe 53 in sequence, and then connecting the water inlet end of the water suction pipe 51 with the water suction pump 54, wherein the drainage pipe 53 is fixed on the protective frame 12 through a fixing piece;
and 5: after entering the sump 3, the water in the drainage ditch 2 enters the water collection tank 41 through the filtering holes 44, and enters the bottom of the water collection tank 41 through the filtering net 9 under the action of the water guide plate 8, and the water is pumped out by the water pump 54 and discharged from the drainage pipe 53.
Through the technical scheme, realized when ponding takes place at foundation ditch 1, can in time discharge the ponding in the foundation ditch 1, utilize waterproof baffle 11's effect can avoid foundation ditch 1 to take place the problem of infiltration before the drainage, cooperation protection frame 12 and fastening stock 13's use, the supporting role of 1 inner wall of foundation ditch has been strengthened, reduce the risk that takes place to collapse, guarantee to accomplish the getting rid of ponding, utilize sand removal device 7 to clear away the silt on ponding and the 41 outer walls of header tank, avoid ponding to carry silt to cause the jam to drain pipe 53 from drain pipe 53 discharge process, thereby influence the efficiency and the drainage effect of drainage.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (9)
1. The utility model provides a nearly water source foundation ditch drainage seepage prevention structure which characterized in that: the foundation pit fixing structure comprises a foundation pit (1), waterproof baffles (11) are arranged on the periphery and the bottom of the foundation pit (1), protective frames (12) are further arranged on the waterproof baffles (11) on the periphery of the foundation pit (1), fastening anchor rods (13) are arranged on the protective frames (12), the fastening anchor rods (13) penetrate through the waterproof baffles (11), and a plurality of groups of anchoring strips (14) are arranged on the outer wall of the foundation pit at equal intervals;
foundation ditch (1) bottom is provided with escape canal (2) that communicate each other all around, the crossing department in escape canal (2) is provided with sump pit (3), be provided with drainage device (4) in sump pit (3), drainage device (4) inside is provided with parts of drawing water (5).
2. The near water source foundation pit drainage seepage-proofing structure of claim 1, wherein:
the protection frame (12) comprises a plurality of groups of transverse fixing rods and vertical fixing rods which are mutually staggered, a waterproof sealing layer (15) is arranged between rectangular areas formed by the transverse fixing rods and the vertical fixing rods in a staggered mode, and the waterproof sealing layer is coated on the waterproof baffle (11).
3. The near-water-source foundation pit drainage seepage-proofing structure and the construction method thereof according to claim 2, characterized in that:
the spine end of fastening stock (13) passes horizontal dead lever and the crossing department of vertical dead lever to set up in the pit internal portion, fastening stock (13) distribute down in proper order from last, and lengthen gradually along with foundation ditch (1) inner wall length downwards.
4. The near water source foundation pit drainage seepage-proofing structure of claim 1, wherein:
drainage device (4) is including setting up header tank (41) in sump (3), header tank (41) top side is sealed to be provided with sealed lid (42) that have handle (43), be provided with on the lateral wall that header tank (41) correspond both sides escape canal (2) and filter hole (44), be provided with through mount (6) sand removal device (7) on sealed lid (42), it is inside that parts (5) that draw water are located header tank (41).
5. The near water source foundation pit drainage seepage-proofing structure of claim 4, wherein:
the water collecting tank is characterized in that a water guide plate (8) is arranged on the inner wall of the water collecting tank (41) and below the corresponding filter holes (44), and a filter screen (9) is connected to one side of the water guide plate (8) to enable water to enter the bottom of the water collecting tank (41) through the filter screen (9).
6. The near water source foundation pit drainage seepage-proofing structure of claim 4, wherein:
remove sand device (7) include pivot (72) of being connected with mount (6) both ends support leg rotation, pivot (72) one end is connected with motor (74), and is two sets of rotate between pivot (72) and be connected with guide tube (71), and is two sets of be provided with between pivot (72) outer wall along guide tube (71) outer wall sliding connection's sand removal board (73), guide tube (71) top side is provided with into husky mouth (75), guide tube (71) outer wall is provided with a plurality of groups and strains husky hole (76).
7. The near water source foundation pit drainage seepage-proofing structure of claim 6, wherein:
and material guide plates (731) are arranged on two sides of the sand removing area of the sand removing plate (73), and the material guide plates (731) are connected with two ends of the sand inlet (75).
8. The near water source foundation pit drainage seepage-proofing structure of claim 4, wherein:
the water pumping component (5) comprises a water pumping pump (54) arranged inside a water collecting tank (41), one end of the water pumping pump (54) is connected with a water pumping pipe (51), a water collecting pipe (52) is connected between the water pumping pipes (51) in the two groups of water collecting tanks (41), and a water draining pipe (53) is connected to the water collecting pipe (52).
9. A construction method of a near water source foundation pit drainage anti-seepage structure is characterized by comprising the following steps: the method comprises the following steps:
step 1: according to the requirements of a construction scheme, after the position of a foundation pit (1) to be excavated is marked, excavating, wherein the inner wall of the excavated foundation pit (1) inclines towards the bottom of the foundation pit (1);
step 2: four mutually communicated drainage ditches (2) are excavated downwards around the bottom of the foundation pit (1), and a water collection pit (3) is formed by continuously excavating downwards at the intersection of the drainage ditches (2);
and step 3: waterproof baffles (11) are arranged along the periphery and the bottom of the inner wall of the foundation pit (1), a protective frame (12) formed by transverse fixing rods and vertical fixing rods which are mutually staggered is fixed on the waterproof baffles (11) through fastening anchor rods (13), and a waterproof sealing layer (15) is coated in a rectangular interval formed by the transverse fixing rods and the vertical fixing rods in a staggered manner, so that the waterproof baffles (11) are fixed, and the anti-seepage effect is further enhanced;
and 4, step 4: fixing a sand removing device (7) on a sealing cover (42) through a fixing frame (6), placing a water collecting tank (41) with the sealing cover (42) in a water collecting pit (3), placing a water suction pump (54) at the bottom of the water collecting tank (41), wherein the position where the water suction pump (54) is placed is lower than the depth of a drainage ditch (2), sequentially connecting a water suction pipe (51), a water collecting pipe (52) and a drainage pipe (53), and then connecting the water inlet end of the water suction pipe (51) with the water suction pump (54), wherein the drainage pipe (53) is fixed on a protective frame (12) through a fixing piece;
and 5: water in the drainage ditch (2) enters the water collecting pit (3), then enters the water collecting tank (41) through the filtering holes (44), enters the bottom of the water collecting tank (41) through the filtering net (9) under the action of the water guide plate (8), and is pumped out by starting the water suction pump (54) and discharged from the drainage pipe (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210741891.0A CN114960714B (en) | 2022-06-28 | 2022-06-28 | Near-water foundation pit drainage seepage-proofing structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN214597616U (en) * | 2021-06-01 | 2021-11-05 | 张必勇 | Grating plate convenient to clean and used for sewage treatment |
| CN216130126U (en) * | 2021-11-12 | 2022-03-25 | 广东万宜基础工程有限公司 | Foundation pit drainage system |
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| CN209011145U (en) * | 2018-10-23 | 2019-06-21 | 北京市城远市政工程有限责任公司 | A kind of base pit dewatering structure |
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| CN212612502U (en) * | 2020-04-18 | 2021-02-26 | 广东建基基础工程有限公司 | Waterproof retaining structure for foundation pit |
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