CN113008201B - Foundation pit settlement monitoring method - Google Patents
Foundation pit settlement monitoring method Download PDFInfo
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- CN113008201B CN113008201B CN202110341727.6A CN202110341727A CN113008201B CN 113008201 B CN113008201 B CN 113008201B CN 202110341727 A CN202110341727 A CN 202110341727A CN 113008201 B CN113008201 B CN 113008201B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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Abstract
The application relates to a foundation pit settlement monitoring method, which relates to the field of building construction, and comprises the following steps of S1, datum point burying: prefabricating a monument stone and selecting a stone burying point; s2, arrangement of monitoring points: s21, mounting a support frame: firstly, punching a hole on a building wall or a crown beam, and then installing a support frame into the hole; s22, installing monitoring points: mounting a monitoring point on the support frame; s3, setting monitoring equipment: s31, mounting a mounting rack and monitoring equipment: connecting the mounting frame with the ground, and then connecting the monitoring equipment body with the fixed platform through the clamping mechanism; s32, monitoring point proofreading processing: firstly, adjusting the monitoring angle of the monitoring equipment body through a lifting adjusting mechanism, and then driving the monitoring equipment body to rotate through a rotating mechanism to further adjust a monitoring point; s4, real-time monitoring: and monitoring the monitoring points in real time through the monitoring equipment body, and collecting data and feeding back the data in time. The foundation pit settlement monitoring and feedback method and device have the timely and accurate effect of monitoring and feeding back the foundation pit settlement.
Description
Technical Field
The application relates to the field of building construction, in particular to a foundation pit settlement monitoring method.
Background
The purpose of monitoring the foundation pit settlement is mainly to provide reliable information for a constructor to evaluate the safety of the foundation pit engineering during construction and the influence of the construction on the surrounding environment, and to provide forecast on the potential hazards or accidents which may occur and endanger the environmental safety so as to take effective measures in time, avoid risks to the maximum extent, avoid casualties and environmental damages and reduce the engineering economy and the construction period loss. However, the monitoring of the foundation pit settlement requires that a constructor periodically measures the foundation pit through equipment such as a total station, and the like, and the constructor periodically measures the foundation pit manually, so that the efficiency is low, the latest condition cannot be fed back in time, and the optimal repair period is easily missed, thereby prolonging the construction period.
Aiming at the related technologies, the inventor thinks that the defect that the settlement of the foundation pit is difficult to monitor and feed back in time so as to influence the construction period exists.
Disclosure of Invention
In order to timely and accurately monitor and feed back the foundation pit settlement amount and guarantee the normal construction period, the application provides a foundation pit settlement monitoring method.
The application provides a foundation pit settlement monitoring method, which adopts the following technical scheme: the method comprises the following steps:
s1, embedding reference points: prefabricating a monument stone and selecting a stone burying point;
s2, arrangement of monitoring points:
s21, mounting a support frame: firstly, punching a hole on a building wall or a crown beam, then installing a support frame into the hole, and then filling a gap between the hole and the support frame with cement glue;
s22, installing monitoring points: mounting a monitoring point on the support frame;
s3, setting monitoring equipment:
s31, mounting the mounting rack and the monitoring equipment: connecting the mounting frame with the ground, and then connecting the monitoring equipment body with a fixed platform positioned above the mounting frame through a clamping mechanism;
s32, monitoring point proofreading processing: firstly, adjusting the monitoring angle of a monitoring equipment body through a lifting adjusting mechanism positioned between an installation frame and a fixed station, and then driving the monitoring equipment body to rotate through a rotating mechanism so that the monitoring equipment body further adjusts a monitoring point;
s4, real-time monitoring: and monitoring points are monitored in real time through the monitoring equipment body, and data are collected and fed back in time.
By adopting the technical scheme, when a constructor needs to monitor the settlement of a foundation pit, firstly, a reference point and a buried stone are selected, the monitored reference point is protected, then, a percussion drill is used for punching a hole on a building wall or a crown beam, then, a support frame is installed in the hole, a gap between the hole and the support frame is filled with cement glue, then, a monitoring point is fixed on the support frame, a purpose-made signboard is hung on the monitoring point, then, the constructor selects a proper position away from the monitoring point to insert a mounting frame into the ground, the monitoring equipment body is connected with a fixed station through a clamping mechanism, then, the monitoring angle of the monitoring equipment body is adjusted through a lifting adjusting mechanism, and the fixed station is rotated through a rotating mechanism, so that the monitoring equipment body can continuously and accurately monitor the monitoring point in real time, and the monitoring data can be fed back in time; the monitoring equipment body can be ensured to continuously and effectively monitor the monitoring points in time through the clamping mechanism, the lifting adjusting mechanism and the rotating mechanism, manual periodic measurement is not needed, the labor intensity of constructors is reduced, risks are avoided to the maximum extent, the latest condition of foundation pit settlement can be fed back in real time, and the engineering economy and the construction period loss are reduced.
Optionally, in S32, the lifting adjusting mechanism includes a lower sleeve disposed between the supporting frame and the fixing table, an upper sleeve disposed between the lower sleeve and the fixing table, and two lifting screws disposed between the upper sleeve and the lower sleeve;
lower sleeve and last sleeve all are provided with four, four lower sleeve and four go up the sleeve one-to-one, four go up the sleeve and be located four extreme angle departments of fixed station respectively, the one end that lifting screw was kept away from to lower sleeve is articulated with the mounting bracket, the one end that lifting screw was kept away from to last sleeve is articulated with the fixed station, two lifting screw respectively with last sleeve and lower sleeve threaded connection, and two lifting screw thread revolves to opposite, two be provided with between the lifting screw and be used for driving two lifting screw pivoted driving pieces simultaneously.
Through adopting above-mentioned technical scheme, when constructor need carry out monitoring angle's regulation to the monitoring facilities body through lift adjustment mechanism, at first drive two synchronous reverse rotations of lifting screw through the driving piece, two lifting screw drive sleeve and lower sleeve respectively after that and be close to or keep away from each other to four extreme angle departments to the fixed station carry out regulation from top to bottom, the fixed station can drive fixture and monitoring facilities body and rotate, thereby adjust the monitoring angle of monitoring facilities body to suitable angle.
Optionally, the driving part is a hand wheel, and the hand wheel is fixedly connected with the two lifting screws.
Through adopting above-mentioned technical scheme, constructor rotates the hand wheel, and the hand wheel can drive two lifting screw and rotate, and the hand wheel provides handheld position for constructor, and the hand wheel diameter is great, makes things convenient for constructor to rotate lifting screw.
Optionally, in S31, the mounting bracket includes an insertion rod, a support platform abutting on the insertion rod, and a rotating shaft disposed inside the insertion rod;
the plug rod is a hollow shell with an opening at the top, one end of the rotating shaft is rotatably connected with the plug rod, the other end of the rotating shaft is fixedly connected with the supporting table, the rotating mechanism is located between the rotating shaft and the plug rod, and the lifting adjusting mechanism is located above the supporting table.
Through adopting above-mentioned technical scheme, during constructor fixed mounting bracket, at first keep away from the one end butt to ground of brace table with the peg graft pole, strike the brace table through the instrument hammer afterwards, peg graft the peg graft pole to the ground in, can accomplish the installation of mounting bracket.
Optionally, one end of the insertion rod, which is far away from the support table, is arranged in a spike shape.
By adopting the technical scheme, the stress area is reduced due to the sharp-pointed shape, so that the support frame can be conveniently inserted into the ground by a constructor, and the labor intensity of the constructor is reduced.
Optionally, in S32, the rotation mechanism includes a worm wheel sleeved on the rotation shaft, a support seat fixedly disposed on an outer side wall of the insertion rod, a worm rotatably connected to the support seat, and a driving motor disposed at one end of the worm;
the worm wheel is fixedly connected with the rotating shaft, the worm wheel is meshed with the worm, an output shaft of the driving motor is fixedly connected with the worm, and a shell of the driving motor is fixedly connected with the supporting seat.
By adopting the technical scheme, when a constructor drives the monitoring equipment body to rotate through the rotating mechanism, the driving motor is started firstly, the output shaft of the driving motor drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the rotating shaft fixedly connected with the worm wheel to rotate, the rotating shaft drives the supporting table to rotate, and the supporting table can drive the lifting adjusting mechanism, the clamping mechanism and the monitoring equipment body to rotate, so that the monitoring equipment body can rotate; and the worm gear adopts multi-tooth meshing transmission, so that the transmission is stable, the precision is high, the noise is very low, and the self-locking property is realized.
Optionally, in S31, the clamping mechanism includes two fixing seats fixed on the fixing table, a clamping plate disposed between the fixing seat and the monitoring device body, a clamping screw disposed between the fixing seat and the clamping plate, and a locking member disposed between the clamping screw and the fixing seat and used for preventing the clamping screw from rotating;
the quantity of grip block sets up to two, the monitoring facilities body is located between two grip blocks, just grip block and monitoring facilities body butt, clamping screw one end is rotated with the grip block and is connected, the other end and fixing base threaded connection.
By adopting the technical scheme, when a constructor connects the monitoring equipment body with the fixed station through the clamping mechanism, the monitoring equipment body is firstly placed between the two clamping plates, then the constructor rotates the clamping screw rod, and the clamping screw rod can drive the clamping plates to move towards one side close to the monitoring equipment body, so that the monitoring equipment body is clamped between the two clamping plates; the fixed monitoring equipment body is simple and convenient to operate, and the two-way clamping of the two clamping plates is adopted, so that the monitoring equipment bodies of different specifications can be centered and used, the deviation is not easy to occur, and the applicability is further improved.
Optionally, the anti-loosening element is a locknut which is in threaded connection with the clamping screw rod, and the locknut is abutted to the fixing seat.
By adopting the technical scheme, the self-locking performance of the locknut is better, the locknut has anti-loosening and anti-vibration capabilities, the clamping screw is not easy to rotate, and therefore the stability of the clamping mechanism is improved.
Optionally, in S21, the supporting frame includes an expansion bolt for being installed on a wall or a crown beam of the building, and a clamp member fixed on the expansion bolt for fixing the monitoring point.
By adopting the technical scheme, when a constructor installs the monitoring point, firstly, a hole is drilled on the building wall or the crown beam, then the expansion bolt is connected with the building wall or the crown beam, and the monitoring point is fixed through the clamping piece, so that the installation of the monitoring point can be completed.
Optionally, the holder is the clamp, clamp and expansion bolts fixed connection, the clamp inside wall and monitoring point butt.
By adopting the technical scheme, when a constructor fixes the monitoring point through the clamping piece, firstly, the inner side wall of the clamp is abutted against the monitoring point, and then the clamp is clamped, so that the monitoring point cannot fall downwards; the clamp connection is simple in operation, characteristics of monitoring points are not affected, construction safety is facilitated, stability is good, and maintenance is convenient.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the monitoring equipment body can be ensured to continuously, timely and effectively monitor the monitoring points through the clamping mechanism, the lifting adjusting mechanism and the rotating mechanism, manual periodic measurement is not needed, the labor intensity of constructors is reduced, risks are avoided to the maximum extent, the latest condition of foundation pit settlement can be fed back in real time, and the engineering economy and the construction period loss are reduced;
2. the environment of a construction site is only severe, the ground is uneven, and the lifting adjusting mechanism can respectively adjust the four end angles of the fixed table, so that the monitoring equipment body can be kept horizontal, and the monitoring angle of the monitoring equipment body can be conveniently adjusted;
3. the clamping mechanism is used for fixing the monitoring equipment body, the operation is simple and convenient, and the two-way clamping of the two clamping plates is adopted, so that the monitoring equipment bodies of different specifications can be used in a centering mode, the deviation is not easy to occur, and the applicability is further improved.
Drawings
FIG. 1 is a partial schematic structural view of a mounting position of a monitoring device in an embodiment of the present application;
FIG. 2 is a partially enlarged view illustrating the structure of the supporting frame;
FIG. 3 is a partial schematic view showing a chucking mechanism;
fig. 4 is a partial sectional view showing the rotation mechanism.
Description of the reference numerals: 1. a support frame; 11. an expansion bolt; 12. a clamping member; 13. monitoring points; 2. a mounting frame; 21. a plug-in rod; 211. a sharp-pointed shape; 22. a support table; 3. a rotating shaft; 4. a fixed table; 5. a clamping mechanism; 51. a fixed seat; 52. a clamping plate; 53. clamping the screw rod; 54. a knob; 55. an anti-loosening element; 6. monitoring the device body; 7. a rotation mechanism; 71. a worm gear; 72. a supporting seat; 73. a worm; 74. a drive motor; 8. a lifting adjusting mechanism; 81. a lower sleeve; 82. an upper sleeve; 83. a lifting screw; 84. a handwheel.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a foundation pit settlement monitoring method.
A foundation pit settlement monitoring method comprises the following steps:
s1, embedding reference points: and (4) burying the prefabricated settlement measuring marker stone to a proper position, filling the periphery with soil, exposing the measuring head, and making an obvious mark.
S2, arrangement of monitoring points 13:
s21, mounting of the support frame 1: referring to fig. 1 and 2, the support frame 1 comprises an expansion bolt 11 arranged on a building wall or a crown beam, a clamping piece 12 is fixedly arranged at one end of the expansion bolt 11, and the clamping piece 12 is used for fixing a monitoring point 13. When a constructor installs the monitoring point 13, firstly, a hole is drilled on a building wall or a crown beam by using a percussion drill, then the expansion bolt 11 is connected with the building wall or the crown beam, and a gap between the hole and the expansion bolt 11 is filled with cement glue.
S22, installing a monitoring point 13: referring to fig. 2, the monitoring point 13 is a reflection prism, the clamping member 12 is a clamp, the clamp is fixedly connected with the expansion bolt 11, and the inner side wall of the clamp is abutted against the reflection prism. When constructor passes through the fixed reflection prism of holder 12, at first make clamp inside wall and reflection prism butt, can make reflection prism can not drop downwards with the clamp chucking afterwards.
S3, setting monitoring equipment:
s31, mounting rack 2 and monitoring equipment installation: referring to fig. 1 and 3, the mounting bracket 2 includes a plug rod 21, the plug rod 21 is a hollow housing with an open top, one end of the plug rod 21 is in the shape of a spike 211, and the spike 211 is used for reducing the stress area, so that a constructor can insert the support frame 1 into the ground. A support table 22 is arranged above the insertion rod 21, the support table 22 is a rectangular plate, and the support table 22 is abutted to one end of the insertion rod 21 far away from the spine 211. The inside rotation axis 3 that is provided with of peg graft pole 21, rotation axis 3 one end and peg graft pole 21 rotation are connected, the other end and a supporting bench 22 fixed connection. When constructor fixed mounting bracket 2, at first with bayonet 211 butt to ground of peg graft pole 21, strike supporting bench 22 through the instrument hammer afterwards, peg graft peg 21 to the ground in, can accomplish the installation of mounting bracket 2.
Referring to fig. 3, a fixed table 4 is arranged above the supporting table 22 at intervals, a clamping mechanism 5 is arranged on the fixed table 4, and the clamping mechanism 5 is used for clamping the monitoring device body 6; the clamping mechanism 5 comprises two fixed seats 51 fixedly arranged on the fixed table 4, the fixed seats 51 are rectangular plates, and the monitoring device body 6 is positioned between the two fixed seats 51; be provided with grip block 52 between fixing base 51 and the monitoring facilities body 6, the quantity of grip block 52 sets up to two, two grip blocks 52 and two fixed plate one-to-one, and monitoring facilities body 6 is located between two grip blocks 52, grip block 52 and monitoring facilities body 6 butt. A clamping screw 53 is arranged between the fixed seat 51 and the corresponding clamping plate 52, one end of the clamping screw 53 is rotatably connected with the clamping plate 52, and the other end of the clamping screw is in threaded connection with the fixed seat 51; a knob 54 is fixed on one end of the clamping screw 53 far away from the clamping plate 52. Be provided with between clamping screw 53 and the fixing base 51 and prevent loose 55, prevent loose 55 and be used for preventing clamping screw 53 from rotating, stop 55 is the locknut of threaded connection on clamping screw 53, and locknut and fixing base 51 butt, locknut self-locking nature is better, have locking anti-vibration ability for make clamping screw 53 difficult the rotation.
When the constructor connects the monitoring device body 6 with the fixed platform 4 through the clamping mechanism 5, the monitoring device body 6 is firstly placed between the two clamping plates 52, then the constructor rotates the knob 54, the knob 54 drives the clamping screw 53 to rotate, the clamping screw 53 can drive the clamping plates 52 to move towards one side close to the monitoring device body 6, and therefore the monitoring device body 6 is clamped between the two clamping plates 52.
S32, monitoring point 13 proofreading processing: referring to fig. 3 and 4, a rotation mechanism 7 is provided between the rotation shaft 3 and the insertion rod 21, and a lift adjustment mechanism 8 is provided above the support table 22. The rotating mechanism 7 comprises a worm wheel 71 sleeved on the rotating shaft 3, the worm wheel 71 is fixedly connected with the rotating shaft 3, a supporting seat 72 is fixedly arranged on the outer side wall of the insertion rod 21, and the supporting seat 72 is a shell with a hollow interior; the support base 72 is rotatably connected with a worm 73, and the worm wheel 71 is meshed with the worm 73. One end of the worm 73 is arranged on the driving motor 74, an output shaft of the driving motor 74 is fixedly connected with the worm 73, and a shell of the driving motor 74 is fixedly connected with the supporting seat 72.
When the constructor drives the monitoring device body 6 to rotate through the rotating mechanism 7, the driving motor 74 is started at first, the output shaft of the driving motor 74 drives the worm 73 to rotate, the worm 73 drives the worm wheel 71 to rotate, the worm wheel 71 drives the rotating shaft 3 fixedly connected with the worm wheel 71 to rotate, the rotating shaft 3 drives the supporting table 22 to rotate, and the supporting table 22 can drive the monitoring device body 6 to rotate.
Referring to fig. 4, the lifting adjusting mechanism 8 includes four lower sleeves 81 disposed between the supporting frame 1 and the fixing table 4, the four lower sleeves 81 are respectively located at four corners of the fixing table 4, and one end of the lower sleeve 81 far away from the fixing table 4 is hinged to the mounting frame 2. An upper sleeve 82 is arranged between the lower sleeve 81 and the fixed table 4, the number of the upper sleeves 82 is four, the four lower sleeves 81 correspond to the four upper sleeves 82 one by one, the axes of the upper sleeves 82 and the lower sleeves 81 are collinear, and one end, far away from the lower sleeves 81, of the upper sleeve 82 is hinged to the fixed table 4. Two lifting screws 83 are arranged between the upper sleeve 82 and the lower sleeve 81, the two lifting screws 83 are fixedly connected, the thread turning directions of the two lifting screws 83 are opposite, and the two lifting screws 83 are respectively in threaded connection with the upper sleeve 82 and the lower sleeve 81. Be provided with the driving piece between two lifting screw 83, the driving piece is used for driving two lifting screw 83 rotations simultaneously, and the driving piece is hand wheel 84, hand wheel 84 and two lifting screw 83 equal fixed connection, and hand wheel 84 is used for providing handheld position for the constructor, and hand wheel 84 diameter is great, makes things convenient for the constructor to rotate lifting screw 83.
When constructor need carry out monitoring angle's regulation to monitoring facilities body 6 through lift adjustment mechanism 8, at first rotate hand wheel 84, hand wheel 84 can drive two lifting screw 83 synchronous reverse rotation, two lifting screw 83 drive sleeve 82 and lower sleeve 81 respectively and are close to each other or keep away from after that, thereby adjust from top to bottom four extreme angle departments of fixed station 4, fixed station 4 can drive fixture 5 and monitoring facilities body 6 and rotate, thereby adjust monitoring angle to suitable angle with monitoring facilities body 6.
S4, real-time monitoring: the monitoring points 13 are monitored in real time through the monitoring equipment body 6, and data are collected and fed back in time.
The implementation principle of the foundation pit settlement monitoring method in the embodiment of the application is as follows: when a constructor needs to monitor the settlement of a foundation pit, firstly selecting a reference point and burying stones, protecting the monitored reference point, then drilling a hole on a building wall or a crown beam by using a percussion drill, then installing an expansion bolt 11 into the hole, filling a gap between the hole and the expansion bolt 11 with cement glue, then fixing a reflecting prism on a support frame 1, hanging a special signboard on the expansion bolt 11, then selecting a proper position away from the reflecting prism by the constructor, inserting one end of a spine-shaped 211 of a connecting rod 21 in an installation frame 2 into the ground, then placing a monitoring device body 6 between two clamping plates 52, rotating a knob 54, connecting the monitoring device body 6 with a fixed table 4, then respectively rotating a hand wheel 84 by the constructor to adjust the monitoring angle of the monitoring device body 6, starting a driving motor 74, controlling the fixed table 4 to rotate by the driving motor 74, the monitoring equipment body 6 can continuously and accurately monitor the monitoring points 13 in real time and feed back monitoring data in time; the clamping mechanism 5, the lifting adjusting mechanism 8 and the rotating mechanism 7 can ensure that the monitoring equipment body 6 can continuously and effectively monitor the monitoring points 13 in time, manual periodic measurement is not needed, the labor intensity of constructors is relieved, risks are avoided to the maximum extent, the latest condition of foundation pit settlement can be fed back in real time, and engineering economy and construction period loss are reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A foundation pit settlement monitoring method is characterized by comprising the following steps: the method comprises the following steps:
s1, embedding reference points: prefabricating a monument stone and selecting a stone burying point;
s2, arrangement of monitoring points (13):
s21, mounting a support frame (1): firstly, punching a hole on a building wall or a crown beam, then installing a support frame (1) into the hole, and then filling a gap between the hole and the support frame (1) with cement glue;
s22, installing a monitoring point (13): a monitoring point (13) is arranged on the support frame (1);
s3, setting monitoring equipment:
s31, mounting rack (2) and monitoring equipment installation: the mounting frame (2) is connected with the ground, and then the monitoring equipment body (6) is connected with a fixed table (4) above the mounting frame (2) through a clamping mechanism (5);
s32, checking the monitoring point (13): firstly, the monitoring angle of a monitoring equipment body (6) is adjusted through a lifting adjusting mechanism (8) positioned between an installation frame (2) and a fixed station (4), and then the monitoring equipment body (6) is driven to rotate through a rotating mechanism (7), so that the monitoring equipment body (6) further adjusts a monitoring point (13);
the lifting adjusting mechanism (8) comprises a lower sleeve (81) arranged between the support frame (1) and the fixed platform (4), an upper sleeve (82) arranged between the lower sleeve (81) and the fixed platform (4), and two lifting screws (83) arranged between the upper sleeve (82) and the lower sleeve (81);
the number of the lower sleeves (81) and the number of the upper sleeves (82) are four, the four lower sleeves (81) correspond to the four upper sleeves (82) one by one, the four upper sleeves (82) are respectively positioned at four end angles of the fixed table (4), one end of the lower sleeve (81) far away from the lifting screw (83) is hinged with the mounting rack (2), one end of the upper sleeve (82) far away from the lifting screw (83) is hinged with the fixed platform (4), the two lifting screws (83) are respectively in threaded connection with the upper sleeve (82) and the lower sleeve (81), the thread turning directions of the two lifting screw rods (83) are opposite, a driving piece for driving the two lifting screw rods (83) to rotate simultaneously is arranged between the two lifting screw rods (83), the driving piece is a hand wheel (84), and the hand wheel (84) is fixedly connected with the two lifting screw rods (83);
s4, real-time monitoring: the monitoring points (13) are monitored in real time through the monitoring equipment body (6), and data are collected and fed back in time.
2. The foundation pit settlement monitoring method according to claim 1, wherein: in S31, the mounting bracket (2) includes an insertion rod (21), a support base (22) abutting against the insertion rod (21), and a rotary shaft (3) provided inside the insertion rod (21);
the plug rod (21) is a hollow shell with an opening at the top, one end of the rotating shaft (3) is rotatably connected with the plug rod (21), the other end of the rotating shaft is fixedly connected with the supporting table (22), the rotating mechanism (7) is located between the rotating shaft (3) and the plug rod (21), and the lifting adjusting mechanism (8) is located above the supporting table (22).
3. The foundation pit settlement monitoring method according to claim 2, wherein: one end of the insertion rod (21) far away from the support table (22) is arranged in a spine shape (211).
4. The foundation pit settlement monitoring method according to claim 2, wherein: in S32, the rotating mechanism (7) comprises a worm wheel (71) sleeved on the rotating shaft (3), a supporting seat (72) fixedly arranged on the outer side wall of the insertion rod (21), a worm (73) rotatably connected to the supporting seat (72), and a driving motor (74) arranged at one end of the worm (73);
the worm wheel (71) is fixedly connected with the rotating shaft (3), the worm wheel (71) is meshed with the worm (73), an output shaft of the driving motor (74) is fixedly connected with the worm (73), and a shell of the driving motor (74) is fixedly connected with the supporting seat (72).
5. The foundation pit settlement monitoring method according to claim 1, wherein: in S31, the clamping mechanism (5) comprises two fixed seats (51) fixedly arranged on the fixed table (4), a clamping plate (52) arranged between the fixed seats (51) and the monitoring device body (6), a clamping screw (53) arranged between the fixed seats (51) and the clamping plate (52), and an anti-loosening element (55) arranged between the clamping screw (53) and the fixed seats (51) and used for preventing the clamping screw (53) from rotating;
the quantity of grip block (52) sets up to two, monitoring facilities body (6) are located between two grip blocks (52), just grip block (52) and monitoring facilities body (6) butt, centre gripping screw (53) one end is rotated with grip block (52) and is connected, the other end and fixing base (51) threaded connection.
6. The foundation pit settlement monitoring method according to claim 5, wherein: the anti-loosening piece (55) is a locknut which is in threaded connection with the clamping screw (53), and the locknut is abutted to the fixed seat (51).
7. A foundation pit settlement monitoring method according to any one of claims 1-6, wherein: at S21, the support frame (1) comprises an expansion bolt (11) arranged on a wall or a crown beam of a building and a clamping piece (12) fixedly arranged on the expansion bolt (11) and used for fixing a monitoring point (13).
8. The foundation pit settlement monitoring method according to claim 7, wherein: the clamp is characterized in that the clamping piece (12) is a clamp, the clamp is fixedly connected with the expansion bolt (11), and the inner side wall of the clamp is abutted against the monitoring point (13).
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| JP2001124554A (en) * | 1999-10-22 | 2001-05-11 | Asahi Optical Co Ltd | Surveying instrument equipped with magnetic encoder |
| CN106352849B (en) * | 2016-09-30 | 2018-09-18 | 许昌学院 | A kind of deformation of deep excavation monitoring alarm |
| CN107354931A (en) * | 2017-08-16 | 2017-11-17 | 中国三冶集团有限公司 | The front end measuring point mechanism of deep basal pit sedimentation inclination measurement in civil engineering |
| CN108914996B (en) * | 2018-09-03 | 2020-07-03 | 浙江林鸥工程管理有限公司 | Automatic monitoring system and method for foundation pit displacement |
| CN111608162B (en) * | 2020-04-30 | 2021-11-23 | 南京理工大学 | Stratum monitoring device for tunnel and deep foundation pit construction |
| CN212801689U (en) * | 2020-06-11 | 2021-03-26 | 威海三元测绘工程有限公司 | Monitoring devices of deep horizontal displacement of foundation ditch and vertical settlement |
| CN111765340A (en) * | 2020-07-08 | 2020-10-13 | 卢伟锦 | Foundation pit engineering monitoring device for high-rise building |
| CN212391085U (en) * | 2020-08-01 | 2021-01-22 | 江苏广传建设有限公司 | Foundation pit dewatering well water level measuring device |
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