CN111608162B - Stratum monitoring device for tunnel and deep foundation pit construction - Google Patents
Stratum monitoring device for tunnel and deep foundation pit construction Download PDFInfo
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- CN111608162B CN111608162B CN202010366746.XA CN202010366746A CN111608162B CN 111608162 B CN111608162 B CN 111608162B CN 202010366746 A CN202010366746 A CN 202010366746A CN 111608162 B CN111608162 B CN 111608162B
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- driving motor
- foundation pit
- screw rod
- deep foundation
- block
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
Abstract
The invention discloses a stratum monitoring device for tunnel deep foundation pit construction, which comprises a substrate, wherein a threaded sleeve is fixedly embedded in the upper end of the substrate, a screw is connected to the inner thread of the threaded sleeve, one end of the screw is rotatably connected with a supporting plate, a first driving motor is fixedly mounted at the upper end of the supporting plate through a first fixing frame, one end of an output shaft of the first driving motor is fixedly connected to one end of the screw through a coupler, the other end of the screw is rotatably connected with a fixing block, a wireless monitoring probe is arranged at the lower end of the fixing block, a telescopic rod is arranged at the upper end of the substrate, and one end of the telescopic rod is fixedly welded at the lower end of the supporting plate. The wireless monitoring probe can drive the screw rod to rotate through the first driving motor, and the rotation of the screw rod can enable the screw rod to lift due to the threaded connection between the screw rod and the threaded sleeve, so that the wireless monitoring probe at the other end of the screw rod is driven to lift, and different depths of the deep foundation pit can be monitored as required.
Description
Technical Field
The invention relates to the technical field of tunnel deep foundation pit construction, in particular to a stratum monitoring device for tunnel and deep foundation pit construction.
Background
The deep foundation pit is an engineering with the excavation depth of more than 5 meters or the excavation depth of not more than 5 meters, but the geological conditions, the surrounding environment and underground pipelines are particularly complex, and the dewatering of the deep foundation pit is an important technical measure for the safe excavation of the foundation pit. At present, a group well pumping test is mostly adopted, and the law of stratum layered compression under the pumping action of the group well is monitored, so that powerful technical basis can be provided for estimating the settlement outside the pit generated by the foundation pit precipitation.
However, the conventional magnetic ring and multipoint displacement meter monitoring device is inconvenient to install, and the monitoring depth of the monitor is not easy to adjust, so that the stratum monitoring device for tunnel and deep foundation pit construction is provided.
Disclosure of Invention
The invention aims to provide a stratum monitoring device for tunnel deep foundation pit construction, which is characterized in that a threaded sleeve is fixedly embedded in a base plate, a screw is in threaded connection with the inside of the threaded sleeve, a first driving motor for driving the screw to drive is arranged at one end of the screw, a wireless monitoring probe is arranged at the other end of the screw, the screw can be driven to rotate through the first driving motor, the screw can be lifted by the rotation of the screw due to the threaded connection between the screw and the threaded sleeve, so that the wireless monitoring probe at the other end of the screw is driven to lift, and different depths of a deep foundation pit can be monitored according to requirements, thereby solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a stratum monitoring device for tunnel depth and foundation pit construction comprises a base plate, a threaded sleeve is fixedly embedded in the upper end of the base plate, the inner part of the threaded sleeve is connected with a screw rod in a threaded manner, one end of the screw rod is rotationally connected with a supporting plate, a first driving motor is fixedly arranged at the upper end of the supporting plate through a first fixing frame, one end of an output shaft of the first driving motor is fixedly connected to one end of the screw rod through a coupler, the other end of the screw rod is rotationally connected with a fixed block, the lower end of the fixed block is provided with a wireless monitoring probe, the upper end of the base plate is provided with a telescopic rod, one end of the telescopic rod is fixedly welded at the lower end of the supporting plate, the lower end of the base plate is fixedly welded with an insertion block, the side wall of the insertion block is provided with an insertion hole, an installation frame for fixing the substrate to the opening of the deep foundation pit is inserted in the insertion hole in a sliding mode;
the steering assembly comprises a connecting block, a protective cover and a second driving motor, the protective cover is fixedly installed at the lower end of the fixed block, the second driving motor passes through the lower surface of a second fixed frame fixed installation and the fixed block, the second driving motor is located inside the protective cover, the lower end of the protective cover is fixedly installed with a baffle, one side of the baffle is rotated to install a connecting column, the connecting block is fixedly welded at the upper end of the wireless monitoring probe, and the connecting column is fixedly arranged inside the connecting block.
Preferably, the mounting bracket includes grafting pole and concave frame, the grafting pole slides and pegs graft in the inside of spliced eye, and the fixed welding of one end of grafting pole has the stopper, concave frame fixed welding is in the other end of grafting pole, and the lower surface of concave frame is provided with the staple, the upper end of concave frame is provided with strikes the piece, strike the piece and be located the staple directly over.
Preferably, the upper end of the supporting plate is provided with a through hole, a first rotating bearing is fixedly embedded in the through hole, and an output shaft of the first driving motor is fixedly inserted into an inner ring of the first rotating bearing.
Preferably, the upper end of the fixed block is fixedly embedded with a second rotating bearing, and the other end of the screw rod is fixedly inserted into an inner ring of the second rotating bearing.
Preferably, the telescopic rod comprises an outer tube and an inner rod, the lower end of the outer tube is fixedly installed at the upper end of the base plate, and the upper end of the inner rod is fixedly welded at the lower end of the supporting plate.
Preferably, the first driving motor and the second driving motor are both set to be positive and negative rotation stepping motors.
Preferably, a third rotating bearing is fixedly embedded in the upper end of the baffle, and the connecting column is fixedly inserted into an inner ring of the third rotating bearing.
Preferably, the connecting block is a concave connecting block, and the connecting column is locked and fixed inside the connecting block through a fixing screw.
Preferably, a first through hole is formed in the side wall of the connecting block, a second through hole corresponding to the first through hole is formed in the side wall of the connecting column, and one end of the fixing screw penetrates through the first through hole and the second through hole in sequence and is locked and fixed through a nut.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the threaded sleeve is fixedly embedded on the substrate, the screw rod is in threaded connection with the inside of the threaded sleeve, the first driving motor for driving the screw rod to drive is arranged at one end of the screw rod, the wireless monitoring probe is arranged at the other end of the screw rod, the screw rod can be driven to rotate through the first driving motor, and the screw rod can be lifted by the rotation of the screw rod due to the threaded connection between the screw rod and the threaded sleeve, so that the wireless monitoring probe at the other end of the screw rod is driven to lift, and different depths of a deep foundation pit can be monitored as required;
2. according to the invention, the lower end of the substrate is fixedly welded with the insertion block, the concave frame is inserted into the insertion hole of the insertion block in a sliding manner through the insertion rod, the upper end and the lower end of the concave frame are respectively provided with the fixing nail and the knocking block, the extension length of the insertion rod can be adjusted according to the actual size and shape of the opening of the deep foundation pit, and the fixing nail is embedded into the tunnel opening or the periphery of the foundation pit by hitting the knocking block, so that the installation and fixation are very simple and convenient;
3. according to the invention, the wireless monitoring probe is rotatably connected to the lower end of the fixed block through the steering assembly, the steering assembly comprises the connecting block, the protective cover and the second driving motor, the connecting column is arranged at one end of the output shaft of the second driving motor, and the connecting column is connected with the wireless monitoring probe through the connecting block.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial cross-sectional view taken at A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view of the concave shelf structure of the present invention;
FIG. 4 is a schematic view of the steering assembly of the present invention;
fig. 5 is a partial sectional view taken at B of fig. 4 according to the present invention.
In the figure: 1. a substrate; 2. a threaded bushing; 3. a screw; 4. a support plate; 5. a first fixing frame; 6. a first drive motor; 7. a fixed block; 8. a wireless monitoring probe; 9. a telescopic rod; 10. an insertion block; 11. inserting holes; 12. a mounting frame; 13. a plug rod; 14. a concave frame; 15. a limiting block; 16. fixing nails; 17. knocking the block; 18. a through hole; 19. a first rotating bearing; 20. a second rotary bearing; 21. an outer tube; 22. an inner rod; 23 a steering assembly; 24. connecting blocks; 25. a protective cover; 26. a second drive motor; 27. a second fixing frame; 28. a baffle plate; 29. connecting columns; 30. a set screw; 31. a first through hole; 32. a second through hole; 33. and a third rotating bearing.
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. 1-3, the present invention provides a technical solution: a stratum monitoring device for tunnel deep foundation pit construction comprises a substrate 1, wherein a threaded sleeve 2 is fixedly embedded in the upper end of the substrate 1, a screw 3 is connected to the inner thread of the threaded sleeve 2, one end of the screw 3 is rotatably connected with a supporting plate 4, a first driving motor 6 is fixedly installed at the upper end of the supporting plate 4 through a first fixing frame 5, one end of an output shaft of the first driving motor 6 is fixedly connected to one end of the screw 3 through a coupler, a through hole 18 is formed in the upper end of the supporting plate 4, a first rotating bearing 19 is fixedly embedded in the through hole 18, the output shaft of the first driving motor 6 is fixedly inserted into an inner ring of the first rotating bearing 19, the other end of the screw 3 is rotatably connected with a fixing block 7, a second rotating bearing 20 is fixedly embedded in the upper end of the fixing block 7, the other end of the screw 3 is fixedly inserted into an inner ring of the second rotating bearing 20, and a wireless monitoring probe 8 is arranged at the lower end of the fixing block 7; be convenient for drive screw rod 3 through first driving motor 6 and rotate, because threaded connection between screw rod 3 and the threaded sleeve 2, screw rod 3's rotation enables screw rod 3 self to go up and down to 8 lifts of wireless monitor probe that drive the 3 other ends of screw rod can monitor the different degree of depth of deep basal pit as required.
The upper end of the base plate 1 is provided with a telescopic rod 9, one end of the telescopic rod 9 is fixedly welded at the lower end of the supporting plate 4, the telescopic rod 9 comprises an outer tube 21 and an inner rod 22, the lower end of the outer tube 21 is fixedly arranged at the upper end of the base plate 1, the upper end of the inner rod 22 is fixedly welded at the lower end of the supporting plate 4, the lower end of the base plate 1 is fixedly welded with an inserting block 10, and the side wall of the inserting block 10 is provided with an inserting hole 11; through the design of telescopic link 9, can ensure that first driving motor 6 can not let backup pad 4 follow the rotation when the pivoted.
The mounting frame 12 used for fixing the substrate 1 to the deep foundation pit opening is inserted in the insertion hole 11 in a sliding mode and comprises an insertion rod 13 and a concave frame 14, the insertion rod 13 is inserted in the insertion hole 11 in a sliding mode, a limiting block 15 is fixedly welded at one end of the insertion rod 13, the concave frame 14 is fixedly welded at the other end of the insertion rod 13, a fixing nail 16 is arranged on the lower surface of the concave frame 14, a knocking block 17 is arranged at the upper end of the concave frame 14, and the knocking block 17 is located right above the fixing nail 16; through the design of the insertion rod 13 and the concave frame 14, the extension length of the insertion rod 13 can be adjusted according to the actual size and shape of the opening of the deep foundation pit, and the fixing nail 16 is embedded into the opening of the deep foundation pit through hitting the knocking block 17, so that the installation is simple and convenient;
the steering assembly 23 comprises a connecting block 24, a protective cover 25 and a second driving motor 26, the protective cover 25 is fixedly mounted at the lower end of the fixed block 7, the second driving motor 26 is fixedly mounted on the lower surface of the fixed block 7 through a second fixing frame 27, the second driving motor 26 is positioned in the protective cover 25, a baffle 28 is fixedly mounted at the lower end of the protective cover 25, a connecting column 29 is rotatably mounted at one side of the baffle 28, the connecting block 24 is fixedly welded at the upper end of the wireless monitoring probe 8, the connecting column 29 is fixedly locked in the connecting block 24, a third rotating bearing 33 is fixedly embedded at the upper end of the baffle 28, the connecting column 29 is fixedly inserted in the inner ring of the third rotating bearing 33, the connecting block 24 is a concave connecting block, the connecting column 29 is fixedly locked in the connecting block 24 through a fixing screw 30, the connecting block 24 is a concave connecting block, and the connecting column 29 is fixedly locked in the connecting block 24 through a fixing screw 30, the first drive motor 6 and the second drive motor 26 are both provided as forward and reverse stepping motors.
The working principle is as follows: when the device is used, the threaded sleeve 2 is fixedly embedded in the substrate 1, the screw rod 3 is in threaded connection with the inner part of the threaded sleeve 2, the first driving motor 6 for driving the screw rod 3 is arranged at one end of the screw rod 3, the wireless monitoring probe 8 is arranged at the other end of the screw rod 3, the screw rod 3 can be driven to rotate through the first driving motor 6, the screw rod 3 can be lifted by the rotation of the screw rod 3 due to the threaded connection between the screw rod 3 and the threaded sleeve 2, so that the wireless monitoring probe 8 at the other end of the screw rod 3 is driven to lift, and different depths of a deep foundation pit can be monitored as required; the lower end of the base plate 1 is fixedly welded with the inserting block 10, the concave frame 14 is inserted into the inserting hole 11 of the inserting block 10 in a sliding mode through the inserting rod 13, the upper end and the lower end of the concave frame 14 are respectively provided with the fixing nail 16 and the knocking block 17, the extending length of the inserting rod 13 can be adjusted according to the actual size and the shape of the deep foundation pit, the fixing nail 16 is embedded into the periphery of the deep foundation pit through the knocking block 17, and mounting and fixing are very simple and convenient; be connected with wireless monitoring probe 8 through turning to subassembly 23 rotation at the lower extreme of fixed block 7, and to turn to subassembly 23 setting including connecting block 24, protection casing 25 and second driving motor 26, and be provided with spliced pole 29 in the one end of second driving motor 26 output shaft, and be connected spliced pole 29 with wireless monitoring probe 8 through connecting block 24, when using, with driving wireless monitoring probe 8 rotation through second driving motor 26 as required, be convenient for monitor, and through setting up second driving motor 26 in the inside of protection casing 25, second driving motor 26 has been protected to protection casing 25, the life of second driving motor 26 has been ensured to a certain extent.
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 (6)
1. The utility model provides a stratum monitoring devices of tunnel deep basal pit construction, includes base plate (1), its characterized in that: the upper end of the base plate (1) is embedded and fixed with a threaded sleeve (2), the internal thread of the threaded sleeve (2) is connected with a screw rod (3), one end of the screw rod (3) is connected with a supporting plate (4) in a rotating mode, a first driving motor (6) is fixedly mounted at the upper end of the supporting plate (4) through a first fixing frame (5), one end of an output shaft of the first driving motor (6) is fixedly connected to one end of the screw rod (3) through a coupler, the other end of the screw rod (3) is connected with a fixing block (7) in a rotating mode, the lower end of the fixing block (7) is connected with a wireless monitoring probe (8) in a rotating mode through a steering assembly (23), an expansion link (9) is arranged at the upper end of the base plate (1), one end of the expansion link (9) is fixedly welded at the lower end of the supporting plate (4), and an insertion block (10) is fixedly welded at the lower end of the base plate (1), an inserting hole (11) is formed in the side wall of the inserting block (10), and an installing frame (12) used for fixing the substrate (1) to the opening of the deep foundation pit is inserted in the inserting hole (11) in a sliding mode;
the steering assembly (23) comprises a connecting block (24), a protective cover (25) and a second driving motor (26), the protective cover (25) is fixedly installed at the lower end of the fixing block (7), the second driving motor (26) is fixedly installed on the lower surface of the fixing block (7) through a second fixing frame (27), the second driving motor (26) is located inside the protective cover (25), a baffle (28) is fixedly installed at the lower end of the protective cover (25), a connecting column (29) is rotatably installed on one side of the baffle (28), the connecting block (24) is fixedly welded at the upper end of the wireless monitoring probe (8), and the connecting column (29) is fixedly locked inside the connecting block (24);
mounting bracket (12) are including grafting pole (13) and concave frame (14), grafting pole (13) slide and peg graft in the inside of spliced eye (11), and the fixed welding of the one end of grafting pole (13) has stopper (15), concave frame (14) fixed welding is in the other end of grafting pole (13), and the lower surface of concave frame (14) is provided with staple (16), the upper end of concave frame (14) is provided with strikes piece (17), strike piece (17) and be located staple (16) directly over.
2. The stratum monitoring device of tunnel deep foundation pit construction of claim 1, characterized in that: the upper end of the supporting plate (4) is provided with a through hole (18), a first rotating bearing (19) is fixedly embedded in the through hole (18), and an output shaft of the first driving motor (6) is fixedly inserted into an inner ring of the first rotating bearing (19).
3. The stratum monitoring device of tunnel deep foundation pit construction of claim 1, characterized in that: and a second rotating bearing (20) is fixedly embedded in the upper end of the fixed block (7), and the other end of the screw rod (3) is fixedly inserted into the inner ring of the second rotating bearing (20).
4. The stratum monitoring device of tunnel deep foundation pit construction of claim 1, characterized in that: the telescopic rod (9) comprises an outer tube (21) and an inner rod (22), the lower end of the outer tube (21) is fixedly installed at the upper end of the base plate (1), and the upper end of the inner rod (22) is fixedly welded at the lower end of the supporting plate (4).
5. The stratum monitoring device of tunnel deep foundation pit construction of claim 1, characterized in that: the first driving motor (6) and the second driving motor (26) are both set to be positive and negative rotating stepping motors.
6. The stratum monitoring device of tunnel deep foundation pit construction of claim 1, characterized in that: and a third rotating bearing (33) is fixedly embedded in the upper end of the baffle (28), and the connecting column (29) is fixedly inserted into the inner ring of the third rotating bearing (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010366746.XA CN111608162B (en) | 2020-04-30 | 2020-04-30 | Stratum monitoring device for tunnel and deep foundation pit construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010366746.XA CN111608162B (en) | 2020-04-30 | 2020-04-30 | Stratum monitoring device for tunnel and deep foundation pit construction |
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| Publication Number | Publication Date |
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| CN111608162A CN111608162A (en) | 2020-09-01 |
| CN111608162B true CN111608162B (en) | 2021-11-23 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176977B (en) * | 2020-09-17 | 2021-11-16 | 广州城建职业学院 | Be applicable to geotechnical engineering construction soil layer and subside and use monitoring devices |
| CN112554244A (en) * | 2020-11-27 | 2021-03-26 | 国网山东省电力公司建设公司 | Scanning device for deep foundation pit |
| CN113008201B (en) * | 2021-03-30 | 2022-07-12 | 北京金房兴业测绘有限公司 | Foundation pit settlement monitoring method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2485471C (en) * | 2002-05-13 | 2010-08-03 | The University Of Manitoba | Method and probe for measuring hydraulic conductivity of soil |
| RU2439294C2 (en) * | 2010-03-09 | 2012-01-10 | Открытое акционерное общество Научно-производственное предприятие "Научно-исследовательский и проектно-конструкторский институт геофизических исследований геологоразведочных скважин" (ОАО НПП "ВНИИГИС") | Drilling perforator and method to control its operation |
| CN210127502U (en) * | 2019-06-11 | 2020-03-06 | 淄博数联空间地理信息有限公司 | Monitoring facilities for building foundation ditch |
| CN210177488U (en) * | 2019-04-23 | 2020-03-24 | 广东高盛富集团有限公司 | Construction engineering foundation detection device |
| CN210346661U (en) * | 2019-09-05 | 2020-04-17 | 扬州工业职业技术学院 | Deep basal pit deformation monitoring alarm device |
-
2020
- 2020-04-30 CN CN202010366746.XA patent/CN111608162B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2485471C (en) * | 2002-05-13 | 2010-08-03 | The University Of Manitoba | Method and probe for measuring hydraulic conductivity of soil |
| RU2439294C2 (en) * | 2010-03-09 | 2012-01-10 | Открытое акционерное общество Научно-производственное предприятие "Научно-исследовательский и проектно-конструкторский институт геофизических исследований геологоразведочных скважин" (ОАО НПП "ВНИИГИС") | Drilling perforator and method to control its operation |
| CN210177488U (en) * | 2019-04-23 | 2020-03-24 | 广东高盛富集团有限公司 | Construction engineering foundation detection device |
| CN210127502U (en) * | 2019-06-11 | 2020-03-06 | 淄博数联空间地理信息有限公司 | Monitoring facilities for building foundation ditch |
| CN210346661U (en) * | 2019-09-05 | 2020-04-17 | 扬州工业职业技术学院 | Deep basal pit deformation monitoring alarm device |
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