CN111827295B - Hydraulic engineering foundation ditch tubular well landfill device - Google Patents
Hydraulic engineering foundation ditch tubular well landfill device Download PDFInfo
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- CN111827295B CN111827295B CN202010663666.0A CN202010663666A CN111827295B CN 111827295 B CN111827295 B CN 111827295B CN 202010663666 A CN202010663666 A CN 202010663666A CN 111827295 B CN111827295 B CN 111827295B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
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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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Abstract
The invention relates to the technical field of hydraulic engineering construction, in particular to a hydraulic engineering foundation pit tube well landfill device, which comprises a foundation, wherein a cylindrical foundation pit is vertically and downwards pre-dug at the upper end of the foundation, a circular ring hole expanding groove is formed in the upper end of the foundation pit, a guide tube is arranged right above the foundation pit, a tube well is vertically arranged in an inner cavity of the foundation pit, an inner circular ring is arranged at an opening position of the upper end of the foundation pit, and the hydraulic engineering foundation pit tube well landfill device has the advantages that: according to the invention, the guide device with the guide pipe and the annular base is arranged, so that the vertical stable downward inserting installation of the pipe well is realized, and meanwhile, the limitation on the shaking of the pipe well is realized by utilizing the clamps with the upper ends symmetrical left and right, so that the installation efficiency and the installation precision of the pipe well are greatly improved; pour through setting up the mixture of inside and outside metal ring and concrete to improved the intensity of pouring greatly, utilized the cooperation of landfill ring groove and ring reaming groove, realized consolidating the side and the last port of tube well mounted position, improved the installation intensity of tube well landfill greatly.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering construction, in particular to a hydraulic engineering foundation pit pipe well landfill device.
Background
The hydraulic engineering foundation pit is an important construction procedure of modern large-scale building underground structures, and in order to prevent the environment and facilities around the foundation pit from being damaged by changes around the underground, a pipe well is usually required to be arranged in the foundation pit for installing hydraulic equipment.
Because the length of tube well is longer, form for reinforced concrete pouring usually, weight is great, when installing, adopt the loop wheel machine to carry out vertical grafting installation usually, however because the quality of tube well is big, inertia is big, leads to when the installation, the tube well leads to the installation to appear the skew owing to rocking, can't guarantee the vertical decline of tube well, and current tube well is when the landfill simultaneously, and the structure is unstable, appears extrusion crack easily under the slope extrusion of tube well to reduce the installation intensity of tube well.
Therefore, the hydraulic engineering foundation pit tube well landfill device is provided, and the problems of stable installation and high-strength fixed landfill of the tube well are solved.
Disclosure of Invention
The invention aims to provide a hydraulic engineering foundation pit tube well landfill device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a hydraulic engineering foundation pit pipe well landfill device comprises a foundation, wherein a cylindrical foundation pit is vertically and downwards pre-dug at the upper end of the foundation, a circular ring expanding groove is formed in the upper end of the foundation pit, a guide pipe is arranged right above the foundation pit, a pipe well is vertically installed in an inner cavity of the foundation pit, an inner circular ring is arranged at an opening position at the upper end of the foundation pit, a gap between the outer wall of the pipe well and the inner wall of the foundation pit is provided with a landfill circular ring groove, an outer circular ring is arranged on the outer wall of the inner cavity of the circular ring expanding groove, an extrusion circular ring is arranged on the inner side of the outer circular ring and fixedly connected with the extrusion circular ring, a concrete circular ring layer is arranged in the gap between the outer circular ring and the extrusion circular ring, the concrete circular ring layer is tightly compacted and bonded between the outer circular ring and the extrusion circular ring, the inner circular ring is connected with the lower end of the inner circular ring, and four inclined supporting columns are, the fixed welding in the outer wall of stand pipe in the upper end of slope pillar, the inner chamber upper end of stand pipe sets up to the toper inner chamber, and the inner chamber hypomere of stand pipe sets up the direction hole that runs through from top to bottom, and the vertical welding of up end of stand pipe has a pair of curb plate of bilateral symmetry, the pneumatic cylinder is transversely installed to the inboard of curb plate, the tip of pneumatic cylinder is provided with a pair of clamp of bilateral symmetry, and the bilateral symmetry is a pair of the lower extreme of clamp is just to the foundation ditch, and the ear seat has all been welded to both sides around a pair of clamp of bilateral symmetry, the ear seat slides and cup joints the outer wall at the guide bar, the guide bar symmetric distribution is in the front and back both sides of clamp, and the fixed welding.
Preferably, the inner wall of the outer circular ring is fixedly welded with four connecting bosses distributed in a circumferential array, the end faces of the connecting bosses are provided with screw holes, fixing screws are rotatably installed in the screw holes in a threaded manner, and nuts of the fixing screws are tightly pressed on the inner wall of the circular arc of the extrusion circular ring.
Preferably, the inner diameter of the guide inner hole is smaller than that of the conical inner cavity of the inner cavity at the upper end of the guide pipe, the inner diameter of the guide inner hole is larger than the outer diameter of the pipe well, and the inner diameter of the foundation pit is larger than the outer diameter of the pipe well.
Preferably, the lower end of the inclined strut is provided with a flange, the flange is tightly pressed on the upper end face of the extrusion circular ring, and the flange and the upper end face of the extrusion circular ring are fixed through locking screws distributed in a circumferential array mode.
Preferably, the lower end of the flange plate is vertically welded with an inserting column. Four jacks distributed in a circumferential array are arranged at the upper end of the extrusion ring, and the inserting columns are vertically inserted into the inner cavities of the jacks.
Preferably, the lower extreme of interior ring is provided with four inserting vertebrae that the circumference array distributes, and interior ring is through inserting the fixed grafting in the upper end of foundation ditch of vertebra, and the inner wall of interior ring and the inner wall coincidence of foundation ditch, and interior ring and extrusion ring are through four connecting rods fixed connection that the circumference array distributes.
Preferably, the lower terminal surface of stand pipe is provided with a pair of sunken extension hole upwards of bilateral symmetry, the up end of interior ring is provided with the mounting hole that corresponds with the extension hole, vertical grafting is installed the stiffener between mounting hole and the extension hole.
Preferably, the upper end of the landfill circular ring groove is communicated with the middle inner cavity of the extrusion circular ring, and concrete landfill layers are poured in the landfill circular ring groove and the inner cavity of the extrusion circular ring.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the guide device with the guide pipe and the annular base is arranged, so that the vertical stable downward inserting installation of the pipe well is realized, and meanwhile, the limitation on the shaking of the pipe well is realized by utilizing the clamps with the upper ends symmetrical left and right, so that the installation efficiency and the installation precision of the pipe well are greatly improved;
2. according to the invention, the mixed pouring of the inner and outer metal rings and the concrete is arranged, so that the pouring strength is greatly improved, and the side edge and the upper port of the installation position of the pipe well are reinforced by matching the landfill ring groove and the ring reaming groove, so that the installation strength of the pipe well landfill is greatly improved.
Drawings
FIG. 1 is a schematic view of the mounting structure of the present invention;
FIG. 2 is a schematic diagram of a tube well preassembly structure according to the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
FIG. 4 is a top view of the foundation pit of the present invention;
fig. 5 is a top view of the guide tube of the present invention.
In the figure: 1. a foundation; 2. a foundation pit; 3. a circular ring reaming groove; 4. a pipe well; 5. burying the circular groove; 6. an outer ring; 7. extruding the circular ring; 8. an inner circular ring; 9. inserting a vertebra; 10. a guide tube; 11. a tilt column; 12. filling a concrete buried layer; 13. a concrete annular layer; 14. an ear mount; 15. a set screw; 16. an extension hole; 17. guiding the inner hole; 18. a side plate; 19. a hydraulic cylinder; 20. clamping a hoop; 21. a guide bar; 22. a connecting rod; 23. a reinforcing bar; 24. a flange plate; 25. inserting a column; 26. a jack; 27. connecting the bosses; 28. screw holes; 29. locking the screw; 30. and (7) installing holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution:
the utility model provides a hydraulic engineering foundation ditch tube well landfill device, includes ground 1, the vertical downward cylindric foundation ditch 2 that has dug in advance in upper end of ground 1, the vertical tub of well 4 of installing of inner chamber of foundation ditch 2, the upper end of foundation ditch 2 is provided with ring reaming groove 3, the inner chamber outer wall in ring reaming groove 3 is provided with outer ring 6, the inseparable pressfitting of outer ring 6 is consolidated at the inner wall in ring reaming groove 3, realize consolidating the soil property inner wall in ring reaming groove 3 through outer ring 6.
The inner side of the outer ring 6 is provided with an extrusion ring 7, the outer ring 6 is fixedly connected with the extrusion ring 7, four connection bosses 27 distributed in a circumferential array are fixedly welded on the inner wall of the outer ring 6, screw holes 28 are formed in the end faces of the connection bosses 27, fixing screws 15 are rotatably installed in the screw holes 28 in a threaded manner, nuts of the fixing screws 15 are tightly pressed on the inner wall of an arc of the extrusion ring 7, and the outer ring 6 is fixedly connected with the extrusion ring 7 by means of matching of the screw holes 28 and the fixing screws 15.
The gap between the outer circular ring 6 and the extrusion circular ring 7 is provided with a concrete circular ring layer 13, the concrete circular ring layer 13 is tightly compacted and bonded between the outer circular ring 6 and the extrusion circular ring 7, the strength of the gap between the outer circular ring 6 and the extrusion circular ring 7 is greatly enhanced by the concrete circular ring layer 13, and the bearing capacity of the extrusion circular ring 7 for outward extrusion is improved.
The inner ring 8 is connected to the lower end of the inner side of the extrusion ring 7, the inner ring 8 and the extrusion ring 7 are fixedly connected through four connecting rods 22 distributed in a circumferential array, and the inner ring 8 and the extrusion ring 7 are fixedly connected through the connecting rods 22.
The upper end open position of foundation ditch 2 is provided with interior ring 8, and the lower extreme of interior ring 8 is provided with four vertebra 9 of inserting that the circumference array distributes, and interior ring 8 is through inserting the fixed grafting in the upper end of foundation ditch 2 of vertebra 9, and the inner wall of interior ring 8 and the inner wall coincidence of foundation ditch 2, and the fixed mounting of ring 8 in the realization of vertebra 9 is inserted in the utilization, utilizes interior ring 8 to strengthen 2 upper end open-ended intensity in foundation ditch greatly, avoids causing and sinks.
Four slope pillars 11 that the slope set up of the up end fixedly connected with of extrusion ring 7, the fixed welding in the outer wall of stand pipe 10 in the upper end of slope pillar 11, the lower extreme of slope pillar 11 is provided with ring flange 24, the inseparable pressfitting of ring flange 24 is at the up end of extrusion ring 7, and it is fixed through the locking screw 29 of circumference array distribution between ring flange 24 and the up end of extrusion ring 7, utilize slope pillar 11 to realize the support to stand pipe 10, utilize the cooperation of ring flange 24 and locking screw 29, realize the fixed connection between ring flange 24 and the extrusion ring 7.
The vertical welding of the lower extreme of ring flange 24 has the post 25 of inserting, and the upper end of extrusion ring 7 is provided with four jacks 26 that the circumference array distributes, inserts the vertical grafting of post 25 in the inner chamber of jack 26, utilizes the cooperation of inserting post 25 and jack 26, further improves the joint strength between ring flange 24 and the extrusion ring 7 to when stand pipe 10 received outside extrusion force, avoid appearing the connection fracture.
Be provided with stand pipe 10 directly over foundation ditch 2, the inner chamber upper end of stand pipe 10 sets up to the toper inner chamber, the inner chamber hypomere of stand pipe 10 sets up the direction hole 17 that runs through from top to bottom, the internal diameter of direction hole 17 is less than the internal diameter of the toper inner chamber of stand pipe 10 upper end inner chamber, the internal diameter of direction hole 17 is greater than the external diameter of tube well 4, the internal diameter of foundation ditch 2 is greater than the external diameter of tube well 4, utilize direction hole 17 to inject the range of rocking of tube well 4 decline, thereby make tube well 4 along the vertical interior chamber of pegging graft downwards at foundation ditch 2 of direction hole 17.
The vertical welding of the up end of stand pipe 10 has a pair of curb plate 18 of bilateral symmetry, pneumatic cylinder 19 is transversely installed to the inboard of curb plate 18, the tip of pneumatic cylinder 19 is provided with a pair of clamp 20 of bilateral symmetry, the lower extreme of a pair of clamp 20 of bilateral symmetry is just to foundation ditch 2, utilize curb plate 18 to realize the fixed mounting of pneumatic cylinder 19, utilize a pair of clamp 20 of pneumatic cylinder 19 control bilateral symmetry to extrude inwards in step, thereby make the center of clamp 20 coincide with the center of foundation ditch 2 all the time, ensure the installation accuracy, utilize clamp 20 to inject the rocking of 4 inertias of tube shaft, reduce the range that 4 rocked of tube shaft simultaneously.
The lower end face of the guide pipe 10 is provided with a pair of upward sunken extension holes 16 which are bilaterally symmetrical, the upper end face of the inner ring 8 is provided with mounting holes 30 corresponding to the extension holes 16, reinforcing rods 23 are vertically inserted between the mounting holes 30 and the extension holes 16, the reinforcing rods 23 are fixedly mounted through the mounting holes 30 and the extension holes 16, and the mounting strength of the guide pipe 10 is further improved through the reinforcing rods 23.
The front side and the rear side of a pair of bilaterally symmetrical clamps 20 are respectively welded with the ear seats 14, the ear seats 14 are sleeved on the outer wall of the guide rod 21 in a sliding mode, the guide rods 21 are symmetrically distributed on the front side and the rear side of the clamps 20, the left end and the right end of the guide rod 21 are fixedly welded on the inner side end face of the side plate 18, and the clamps 20 slide in a left-right parallel mode through the cooperation of the guide rods 21 and the ear seats 14.
The clearance between the outer wall of tube well 4 and the inner wall of foundation ditch 2 sets up to landfill ring groove 5, the middle inner chamber of upper end intercommunication extrusion ring 7 of landfill ring groove 5, and all pour concrete buried layer 12 in the inner chamber of landfill ring groove 5 and extrusion ring 7, improve the circular arc of tube well 4 mounted position all around and the intensity of upper end open position through pouring concrete buried layer 12, contain the outer ring 6 that the metal was made in the concrete buried layer 12 simultaneously, extrusion ring 7, connecting rod 22 and inner ring 8, thereby the intensity of concrete connection in the concrete buried layer 12 has been improved greatly, avoid causing the excessive extrusion to foundation ditch 2 inner walls because tube well 4.
The working principle is as follows: firstly, the soil inner wall of the circular ring reaming groove 3 is reinforced through the outer circular ring 6, the fixed connection between the outer circular ring 6 and the extrusion circular ring 7 is realized by utilizing the matching of the screw holes 28 and the fixing screws 15, the strength of the gap between the outer circular ring 6 and the extrusion circular ring 7 is greatly enhanced by utilizing the concrete circular ring layer 13, further, the bearing pressure of the extrusion circular ring 7 which extrudes outwards is improved, then, the connecting rod 22 is utilized to realize the fixed connection between the inner circular ring 8 and the extrusion circular ring 7, the fixed installation of the inner circular ring 8 is realized by utilizing the inserting cone 9, the strength of the opening at the upper end of the foundation pit 2 is greatly enhanced by utilizing the inner circular ring 8, the collapse is avoided, and the equipment installation of the inner cavity of the circular ring reaming groove 3 is finished.
Utilize the support of slope pillar 11 realization to stand pipe 10, utilize the cooperation of ring flange 24 and locking screw 29, realize the fixed connection between ring flange 24 and the extrusion ring 7, utilize mounting hole 30 and extension 16 to realize the fixed mounting of stiffener 23, utilize stiffener 23 further to improve the installation intensity of stand pipe 10, utilize the cooperation of post 25 and jack 26, further improve the joint strength between ring flange 24 and the extrusion ring 7, thereby when stand pipe 10 receives outside extrusion force, avoid appearing the joint fracture, thereby accomplish the fixed mounting to stand pipe 10, avoid causing stand pipe 10 skew under the impact of the great inertia of tub of well 4.
Utilize curb plate 18 to realize the fixed mounting of pneumatic cylinder 19, utilize a pair of clamp 20 of pneumatic cylinder 19 control bilateral symmetry to extrude in step, thereby make the center of clamp 20 coincide with the center of foundation ditch 2 all the time, ensure the installation accuracy, utilize the cooperation of guide bar 21 and ear seat 14, realize the parallel slip about clamp 20, utilize clamp 20 to inject 4 inertial rocks of tub well, reduce the range that tub well 4 rocked simultaneously, utilize direction hole 17 to inject the range of rocking of tub well 4 decline, thereby make tub well 4 along the vertical interior chamber of pegging graft at foundation ditch 2 downwards of direction hole 17, the installation effectiveness and the precision of tub well 4 have been improved greatly.
Then the guide pipe 10, the reinforcing rod 23 and the inclined strut 11 are disassembled, concrete filling layers 12 are poured in inner cavities of the filling circular groove 5 and the extrusion circular ring 7, the strength of the periphery and the upper end opening position of the circular arc of the installation position of the pipe well 4 is improved by pouring the concrete filling layers 12, meanwhile, the concrete filling layers 12 internally contain outer circular rings 6 made of metal, the extrusion circular rings 7, a connecting rod 22 and inner circular rings 8, therefore, the strength of concrete connection in the concrete filling layers 12 is greatly improved, and excessive extrusion on the inner wall of the foundation pit 2 caused by the pipe well 4 is avoided.
The hydraulic cylinder 19 adopts the following models: MOB series of standard hydraulic cylinders.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a hydraulic engineering foundation ditch tube well landfill device, includes ground (1), its characterized in that: the upper end of the foundation (1) is vertically and downwards pre-dug with a cylindrical foundation pit (2), the upper end of the foundation pit (2) is provided with a circular ring expanding groove (3), a guide pipe (10) is arranged right above the foundation pit (2), a pipe well (4) is vertically arranged in an inner cavity of the foundation pit (2), an inner circular ring (8) is arranged at an upper end opening position of the foundation pit (2), a gap between the outer wall of the pipe well (4) and the inner wall of the foundation pit (2) is set to be a filling circular groove (5), an outer circular ring (6) is arranged on the outer wall of the inner cavity of the circular ring expanding groove (3), an extrusion circular ring (7) is arranged on the inner side of the outer circular ring (6), the outer circular ring (6) is fixedly connected with the extrusion circular ring (7), a concrete circular ring layer (13) is arranged in the gap between the outer circular ring (6) and the extrusion circular ring (7), and the concrete circular ring layer (13) is tightly compacted and bonded between the outer circular ring (6) and, the inner ring (8) is connected to the inner side lower end of the extrusion ring (7), the inclined strut (11) is fixedly connected with four inclined struts (11) arranged on the upper end face of the extrusion ring (7), the upper end of the inclined strut (11) is fixedly welded on the outer wall of the guide pipe (10), the upper end of the inner cavity of the guide pipe (10) is arranged into a conical inner cavity, the lower section of the inner cavity of the guide pipe (10) is arranged into a guide inner hole (17) which penetrates up and down, the upper end face of the guide pipe (10) is vertically welded with a pair of bilateral symmetrical side plates (18), a hydraulic cylinder (19) is transversely installed on the inner side of each side plate (18), a pair of bilateral symmetrical clamps (20) is arranged on the end part of each hydraulic cylinder (19), the lower ends of the clamps (20) are just opposite to the foundation pit (2), and ear seats (14) are, the ear seat (14) is sleeved on the outer wall of the guide rod (21) in a sliding mode, the guide rod (21) is symmetrically distributed on the front side and the rear side of the hoop (20), and the left end and the right end of the guide rod (21) are fixedly welded to the end faces of the inner sides of the side plates (18).
2. The hydraulic engineering foundation pit tube well landfill device of claim 1, characterized in that: the inner wall of outer ring (6) fixed welding has four connection boss (27) that the circumference array distributes, the terminal surface of connecting boss (27) is provided with screw hole (28), set screw (15) are installed in screw hole (28) internal thread rotation, the nut of set screw (15) closely the pressfitting is on the circular arc inner wall of extrusion ring (7).
3. The hydraulic engineering foundation pit tube well landfill device of claim 1, characterized in that: the internal diameter of direction hole (17) is less than the internal diameter of the toper inner chamber of stand pipe (10) upper end inner chamber, and the internal diameter of direction hole (17) is greater than the external diameter of tube well (4), the internal diameter of foundation ditch (2) is greater than the external diameter of tube well (4).
4. The hydraulic engineering foundation pit tube well landfill device of claim 1, characterized in that: the lower end of the inclined strut (11) is provided with a flange plate (24), the flange plate (24) is tightly pressed on the upper end face of the extrusion circular ring (7), and the flange plate (24) and the upper end face of the extrusion circular ring (7) are fixed through locking screws (29) distributed in a circumferential array mode.
5. The hydraulic engineering foundation pit tube well landfill device of claim 4, characterized in that: the lower end of the flange plate (24) is vertically welded with an inserting column (25), the upper end of the extrusion ring (7) is provided with four inserting holes (26) distributed in a circumferential array mode, and the inserting column (25) is vertically inserted into the inner cavity of the inserting hole (26).
6. The hydraulic engineering foundation pit tube well landfill device of claim 1, characterized in that: the lower extreme of interior ring (8) is provided with four inserting vertebrae (9) that the circumference array distributes, and interior ring (8) are through inserting the fixed grafting in the upper end of foundation ditch (2) of vertebra (9), and the inner wall of interior ring (8) and the inner wall coincidence of foundation ditch (2), through four connecting rods (22) fixed connection that the circumference array distributes between interior ring (8) and extrusion ring (7).
7. The hydraulic engineering foundation pit tube well landfill device of claim 1, characterized in that: the lower terminal surface of stand pipe (10) is provided with a pair of sunken extension hole (16) upwards of bilateral symmetry, the up end of interior ring (8) is provided with and extends corresponding mounting hole (30) in hole (16), vertical grafting is installed between mounting hole (30) and the extension hole (16) and is strengthened pole (23).
8. The hydraulic engineering foundation pit tube well landfill device of claim 1, characterized in that: the upper end of the landfill circular groove (5) is communicated with the middle inner cavity of the extrusion circular ring (7), and concrete landfill layers (12) are poured in the inner cavities of the landfill circular groove (5) and the extrusion circular ring (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010663666.0A CN111827295B (en) | 2020-07-10 | 2020-07-10 | Hydraulic engineering foundation ditch tubular well landfill device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010663666.0A CN111827295B (en) | 2020-07-10 | 2020-07-10 | Hydraulic engineering foundation ditch tubular well landfill device |
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| CN111827295A CN111827295A (en) | 2020-10-27 |
| CN111827295B true CN111827295B (en) | 2021-02-19 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE202010017153U1 (en) * | 2010-12-30 | 2011-02-24 | Tröndle, Karl-Heinz | Submerged pipe sinking machine |
| KR102186791B1 (en) * | 2018-11-28 | 2020-12-04 | 주식회사 지앤지테크놀러지 | Apparatus for shielding high depth groundwater well prevention grouting |
| CN109723070B (en) * | 2018-12-28 | 2021-03-26 | 上海二十冶建设有限公司 | Concrete well pipe installation device for underground pipe well precipitation and use method |
| CN210238548U (en) * | 2019-06-27 | 2020-04-03 | 联建建设工程有限公司 | Installation device of well pipe for deep foundation pit |
| CN210507499U (en) * | 2019-07-30 | 2020-05-12 | 中铁十四局集团大盾构工程有限公司 | Foundation pit dewatering well construction platform |
| CN210684710U (en) * | 2019-09-12 | 2020-06-05 | 中建二局第二建筑工程有限公司 | Device for lowering concrete well pipe in pipe well |
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Effective date of registration: 20210129 Address after: 750001 no.629 Shengli Street, Xingqing District, Yinchuan City, Ningxia Hui Autonomous Region Applicant after: NINGXIA CHENYU WATER CONSERVANCY & HYDROPOWER CONSTRUCTION ENGINEERING Co.,Ltd. Address before: Zhejiang University of technology, 18 Chaowang Road, Xiacheng District, Hangzhou City, Zhejiang Province, 310018 Applicant before: Shi Lijun |
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