CN114964131A - BIM technology-based deep foundation pit deformation detection method and device - Google Patents
BIM technology-based deep foundation pit deformation detection method and device Download PDFInfo
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- CN114964131A CN114964131A CN202210492919.1A CN202210492919A CN114964131A CN 114964131 A CN114964131 A CN 114964131A CN 202210492919 A CN202210492919 A CN 202210492919A CN 114964131 A CN114964131 A CN 114964131A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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Abstract
The invention belongs to the field of deep foundation pit deformation detection, and particularly relates to a deep foundation pit deformation detection device which comprises baffles arranged on two inner walls of a foundation pit, a horizontally arranged support shaft is arranged between the two baffles, two symmetrically arranged telescopic assemblies are arranged at two ends of the support shaft, each telescopic assembly comprises a sliding shaft, two ends of each support shaft are respectively provided with a sliding cavity, each sliding shaft is slidably arranged in each sliding cavity, one end of each sliding shaft is connected with the corresponding baffle in a universal mode, the other end of each sliding shaft is connected with the corresponding support shaft through an elastic mechanism, a displacement detection device for detecting the displacement of the corresponding sliding shaft is arranged in each sliding cavity, and inclination measuring devices are further arranged at two sides of the foundation pit.
Description
Technical Field
The invention belongs to the field of deep foundation pit deformation detection, and particularly relates to a deep foundation pit deformation detection method and device based on a BIM (building information modeling) technology.
Background
The excavation of the deep foundation pit is a dynamic process, is influenced by various complex factors, and is difficult to predict problems which may occur from the existing theory. Once the supporting structure is stressed unevenly, the soil body inclines slightly, and the foundation pit collapses seriously. The excavation of the foundation pit also brings hidden troubles to the safety of surrounding buildings. If the surrounding soil is unstable, the superstructure may be damaged, which may have a bad social effect. Therefore, monitoring the foundation pit is an essential link in foundation pit engineering construction. At present, the foundation pit monitoring is mainly carried out manually, instruments such as a total station, a level gauge and an inclinometer are mostly adopted for monitoring, the monitoring workload is large, and artificial errors exist due to the influence of factors such as weather, personnel and field conditions. The technical parameters cannot be monitored in real time, the summary analysis is delayed, and the problems and risks existing in the engineering are difficult to master in time, which all affect the safety production and management level of the engineering.
Disclosure of Invention
The invention aims to provide a deep foundation pit deformation detection method and a deep foundation pit deformation detection device based on a BIM (building information modeling) technology, which can detect the deformation state of a foundation pit in real time, visually monitor and alarm when the deformation state exceeds a threshold value, and adopts the following technical scheme to realize the aim of the invention:
a deformation detection device for a deep foundation pit comprises baffles arranged on two inner walls of the foundation pit, a horizontally arranged support shaft is arranged between the two baffles, and two symmetrically arranged telescopic assemblies are arranged at two ends of the support shaft;
the telescopic assembly comprises a sliding shaft, sliding cavities are arranged at two ends of the supporting shaft, the sliding shaft is arranged in the sliding cavities in a sliding mode, one end of the sliding shaft is connected with the baffle in a universal mode, the other end of the sliding shaft is connected with the supporting shaft through an elastic mechanism, and a displacement detection device for detecting displacement of the sliding shaft is arranged in the sliding cavity;
and inclination measuring devices are further arranged on two sides of the foundation pit.
Furthermore, the elastic mechanism comprises a spring arranged in the sliding cavity, one end of the spring is abutted to the inner wall of the sliding cavity, and the other end of the spring acts on the sliding shaft.
Further, the spring is close to a pot head of sliding shaft is established on the slider, and the butt go-between, the fixed cover of go-between is established on the slider, the go-between with the slip chamber adaptation, the slip chamber is kept away from the one end inner wall of slider with the space has between the slider, displacement detection device sets up on the slider.
Further, the elastic mechanism is still established including the cover the epaxial cover that rotates of back, it passes through threaded connection to rotate the cover the back shaft, the back shaft side is provided with the intercommunication the spout in sliding chamber, be provided with the connecting block in the spout, connecting block one end fixed connection the go-between lateral surface, the medial surface of other end fixed connection spacing ring, the spacing ring cover is established on the back shaft, the lateral surface of spacing ring is provided with and is used for connecting the stop gear who rotates the cover, so that be used for rotate the cover compression when rotating the spring.
Further, stop gear includes the holding rod, the rotating sleeve is close to the one end inboard of spacing ring is provided with breach portion, breach portion with the spacing ring adaptation, holding rod one end is passed the rotating sleeve side just sets up in the breach portion, the spacing ring lateral surface be provided with the ring channel of holding rod tip adaptation, the holding rod is used for inserting in the ring channel, it is right to form the axial of spacing ring is spacing.
Furthermore, the rotating sleeve is arranged between two limiting rings on the telescopic assembly, one side, away from the limiting rings, of the rotating sleeve is provided with threaded holes, the threaded holes and the supporting shaft are arranged concentrically, and the outer side face of the supporting shaft is fixedly provided with threaded connection threads of the threaded holes.
Furthermore, two supporting mechanisms which are symmetrically arranged are arranged at two ends of the supporting shaft, each supporting mechanism comprises a second annular groove formed in the end face of the supporting shaft, a supporting sheet is arranged in each second annular groove and extends out of each second annular groove, one end of each connecting rod is fixedly connected with the corresponding supporting sheet, the other end of each connecting rod is connected with an embedded part, and the embedded parts are arranged on the inner wall of the foundation pit and are located above the baffles.
Furthermore, the support sheet is of an arc-shaped structure.
Furthermore, the both ends of back shaft still are provided with coupling mechanism, coupling mechanism is including setting up the half slot of slide shaft tip, be provided with the spheroid in the half slot, slide shaft terminal surface detachable connects the apron, the apron is provided with the diameter and is less than spheroidal through-hole, the through-hole inner wall be with the cambered surface structure of spheroid adaptation, partly extension of spheroid the through-hole, and fixed connection dead lever, dead lever detachable connects the baffle.
A deep foundation pit deformation detection method based on a BIM technology comprises the following steps,
s1, construction preparation;
s2, pre-modeling a BIM model of the foundation pit;
s3, installing and constructing a foundation pit and a detection device;
s4, detecting the horizontal span of the foundation pit by the displacement detection device, detecting the inclination by the inclination measuring device, wirelessly transmitting data to the data center by the inclination measuring device and the data center, and modifying the BIM by the data center according to the data to obtain an actual BIM of the foundation pit;
and S5, setting a horizontal span and an inclination for the BIM model of the foundation pit, setting an alarm threshold value, and alarming when the alarm threshold value exceeds the threshold value.
The invention has the following beneficial effects: the displacement of the sliding shafts when sliding and the inclination of the soil layer at the side of the foundation pit are measured by the displacement detection device, so that the change condition of the horizontal span and the inclination of the foundation pit can be obtained in real time, the deformation condition of the deep foundation pit can be known in real time, the measurement data can be subsequently led into BIM modeling software to form a BIM model, and the deformation condition can be intuitively reflected, compared with the prior art, the beneficial effect of detecting the deformation condition of the foundation pit in real time is achieved, the elastic mechanism has an extrusion effect on the wall surface of the foundation pit, provides a certain pretightening force and stabilizes the structure of the foundation pit, in addition, the holding rod is rotated to drive the rotating sleeve to rotate, meanwhile, the sliding block compression spring is pushed, the horizontal lengths of the two sliding shafts are shortened, the sliding shafts are further convenient to be hung into the foundation pit, the effect of convenient installation is realized, and the detection data of the sliding shafts measured by the displacement detection device is combined with BIM modeling, the functions of visual monitoring and alarm when the threshold value is exceeded are realized.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a telescoping assembly;
FIG. 3 is a schematic sectional view taken along line a-a in FIG. 2;
FIG. 4 is a schematic view of the spring as it is compressed;
FIG. 5 is an enlarged view of the point A in FIG. 1;
fig. 6 is a schematic sectional view along the direction b-b in fig. 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 6 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 embodiments. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
A deformation detection device for a deep foundation pit comprises baffle plates 2 arranged on two inner walls of a foundation pit 1, a support shaft 3 horizontally arranged is arranged between the two baffle plates 2, and two symmetrically arranged telescopic assemblies are arranged at two ends of the support shaft 3;
the telescopic assembly comprises a sliding shaft 4, sliding cavities are arranged at two ends of the supporting shaft 3, the sliding shaft 4 can be arranged in the sliding cavities in a sliding mode, one end of the sliding shaft 4 is connected with the baffle 2 in a universal mode, the other end of the sliding shaft 4 is connected with the supporting shaft 3 through an elastic mechanism 5, and a displacement detection device 10 used for detecting the displacement of the sliding shaft 4 is arranged in the sliding cavities;
and inclination measuring devices 8 are further arranged on two sides of the foundation pit 1.
As shown in fig. 1, the baffle 2 is prior art, and is fixed on two opposite wall surfaces in the foundation pit 1, the support shaft 3 is located at a position above the baffle 2, the sliding cavity is in a blind hole structure, the sliding shaft 4 is in a sliding process, the elastic mechanism 5 is compressed, and after the support shaft 3 is installed in place, the elastic mechanism 5 is in a compressed state, so that the sliding shaft 4 extrudes the wall surface of the foundation pit 1, a certain pre-tightening force is provided, and the foundation pit 1 structure is stabilized.
The displacement detection device 10 is the prior art, can be the distance measuring instrument, laser range finder or various sensors with distance measuring function, such as displacement sensor, photoelectric sensor, etc., the invention adopts the photoelectric sensor, its transmitting terminal is installed on the inner wall of one end far away from its opening of sliding chamber, the receiving terminal is installed in one end of sliding shaft 4 located in sliding chamber, can detect out in time when the sliding shaft 4 produces the displacement, the inclinometer 8 is the prior art, used for measuring the slope situation of the soil horizon of both sides of foundation ditch 1, the invention adopts the fixed inclinometer of guide pulley type, have long-time automatic measuring characteristic, the inclinometer 8 is set up two, locate in the soil horizon of both sides of foundation ditch 1, two baffles 2 are located between two inclinometers 8.
When the two sides of the foundation pit 1 are inclined, the universal connection between the end part of the sliding shaft 4 and the baffle 2 keeps the supporting shaft 3 in a horizontal state all the time, and the data measured by the inclination measuring device 8 are the horizontal span of the foundation pit 1 all the time.
According to the invention, the displacement of the sliding shaft 4 during sliding and the inclination of the soil layer at the side of the foundation pit 1 are measured by the displacement detection device 10, so that the change condition of the horizontal span and the inclination of the foundation pit 1 can be obtained in real time, the deformation condition of the deep foundation pit can be known in real time, and the measurement data can be subsequently led into BIM modeling software to form a BIM model, so that the deformation condition can be intuitively reflected.
Further, the elastic mechanism 5 comprises a spring 505 arranged in the sliding cavity, one end of the spring 505 abuts against the inner wall of the sliding cavity, and the other end of the spring acts on the sliding shaft 4.
Further, a sleeve of the spring 505 close to the sliding shaft 4 is sleeved on the sliding block 501 and abuts against the connecting ring 502, the connecting ring 502 is fixedly sleeved on the sliding block 501, the connecting ring 502 is matched with the sliding cavity, the sliding cavity is far away from the inner wall of one end of the sliding block 501, a gap is formed between the sliding block 501, and the displacement detection device 10 is arranged on the sliding block 501.
Specifically, as shown in fig. 2, the emitting end of the photoelectric sensor is mounted on the end face of the slider 501 at one end of the spring 505, and the receiving end is spaced from the emitting end.
Further, elasticity mechanism 5 still establishes including the cover rotate set 506 on the back shaft 3, it passes through threaded connection to rotate set 506 back shaft 3, back shaft 3 side is provided with the intercommunication the spout 510 of sliding chamber, be provided with connecting block 503 in the spout 510, connecting block 503 one end fixed connection the go-between 502 lateral surface, the medial surface of other end fixed connection spacing ring 504, spacing ring 504 cover is established back shaft 3 is last, the lateral surface of spacing ring 504 is provided with and is used for connecting the stop gear who rotates set 506, so that be used for rotate set 506 compression when rotating spring 505.
The sliding groove 510 is a square hole structure, and provides an axial limiting effect for the movement of the connecting block 503, and the limiting ring 504 and the rotating sleeve 506 are concentrically arranged.
The rotating sleeve 506 is a component used when the whole device is installed, when the device is installed, the rotating sleeve 506 is connected with the limiting ring 504 through the limiting mechanism, when the rotating sleeve 506 rotates, the limiting ring 504 moves, the spring 505 is compressed to the minimum stroke, the state shown in fig. 4 is formed, at the moment, the sliding shaft 4 is arranged at a distance from the sliding block 501 in the horizontal direction, therefore, the length of the two sliding shafts 4 in the horizontal direction is shortened and is smaller than the distance between the two baffles 2, the end part of the sliding shaft 4 is arranged at a distance from the baffles 2, at the moment, the supporting shaft 3 can be hung into the foundation pit 1 through the hanger, then the constraint of the rotating sleeve 506 on the limiting ring 504 is relieved through the limiting mechanism, and when the spring 505 resets, the sliding shaft 4 is pushed to press the baffles 2, and a pre-tightening structure is formed.
Further, stop gear includes holding rod 508, the cover 506 is close to the one end inboard of spacing ring 504 is provided with breach portion 509, breach portion 509 with the spacing ring 504 adaptation, holding rod 508 one end is passed the cover 506 side just sets up in breach portion 509, the spacing ring 504 lateral surface be provided with the annular groove of holding rod 508 tip adaptation, holding rod 508 is used for inserting in the annular groove to form the axial spacing to spacing ring 504.
Specifically, the holding rod 508 is connected with the rotating sleeve 506 through threads, the holding rod 508 can be inserted into the notch part 509 by rotating the holding rod 508, during specific installation, the holding rod 508 is rotated in the circumferential direction of the rotating sleeve 506, the notch part 509 covers the limiting ring 504, then the holding rod 508 is rotated, the end part of the holding rod 508 is inserted into the annular groove, then the holding rod 508 is rotated in the circumferential direction again, the sliding block 501 is pushed to compress the spring 505, the state shown in fig. 4 is formed, then the supporting shaft 3 is hung into the foundation pit 1 through the hanger, and in addition, when the rotating sleeve 506 is rotated, the supporting shaft 3 is kept relatively fixed by the hanger, and rotation is avoided.
Further, the rotating sleeve 506 is arranged between two limiting rings 504 on the telescopic assembly, a threaded hole is formed in one side, away from the limiting rings 504, of the rotating sleeve 506, the threaded hole and the supporting shaft 3 are concentrically arranged, and the outer side face of the supporting shaft 3 is fixedly provided with a threaded ring 507 connected with the threaded hole in a threaded mode.
As shown in fig. 2, in the process of rotating the rotating sleeve 506, the function of pushing the sliding block 501 to compress the spring 505 is realized through the threaded connection between the rotating sleeve and the threaded ring 507, in addition, the supporting shaft 3 is further sleeved with an intermediate ring 511, the intermediate ring 511 is fixedly connected with the supporting shaft 3, two sides of the intermediate ring 511 are respectively and fixedly connected with the threaded rings 507 on the two telescopic assemblies, the threaded hole is in the structure of an annular groove and is concentric with the rotating sleeve 506, and the threaded part is arranged on the wall surface of the annular groove.
Further, in the circumferential direction of the support shaft 3, a plurality of grip bars 508 and connecting blocks 503 are provided in an annular array.
According to the invention, the rotation of the rotating sleeve 506 is driven by rotating the holding rod 508, and meanwhile, the sliding block 501 is pushed to compress the spring 505, so that the horizontal lengths of the two sliding shafts 4 are shortened, and the sliding shafts are conveniently hung in the foundation pit 1, thereby realizing the effect of convenience in installation.
Furthermore, two supporting mechanisms which are symmetrically arranged are arranged at two ends of the supporting shaft 3 and comprise a second annular groove which is formed in the end face of the supporting shaft 3, a supporting sheet 11 is arranged in the second annular groove, the supporting sheet 11 extends out of the second annular groove and is fixedly connected with one end of the connecting rod 7, the other end of the connecting rod 7 is connected with an embedded part 9, and the embedded part 9 is arranged on the inner wall of the foundation pit 1 and is located above the baffle 2.
Further, the support sheet 11 is of an arc structure.
The embedded part 9 is prior art, and it sets up between baffle 2 top and foundation ditch 1 top, and connecting rod 7 slope sets up, and mode such as screw, fastener can be passed through at its top and the embedded part 9 is connected.
As shown in fig. 6, the second annular groove, the support shaft 3 and the support sheet 11 are concentrically arranged, and the support shaft 3 is limited by the connection of the connecting rod 7 and the support of the support sheet 11, so that the support shaft is always kept in a state that the axis is horizontal, and the support area and the strength are improved by the arc-shaped structure of the support sheet 11.
Further, the both ends of back shaft 3 still are provided with coupling mechanism 6, coupling mechanism 6 is including setting up the half slot of 4 tip of slide-shaft, be provided with spheroid 601 in the half slot, 4 terminal surfaces of slide-shaft detachable connect the apron 602, the apron 602 is provided with the diameter and is less than the through-hole of spheroid 601, the through-hole inner wall be with the cambered surface structure of spheroid 601 adaptation, partly extension of spheroid 601 the through-hole, and fixed connection dead lever 603, dead lever 603 detachable connects baffle 2.
As shown in fig. 5, the semicircular groove is a hemispherical groove structure, the cover plate 602 is connected to the end surface of the sliding shaft 4 through a screw, the cover plate 602 forms a limiting mechanism, the ball 601 is clamped in the semicircular groove, the ball 601 can perform universal rotation within a certain range under the limitation of the fixing rod 603, and the inclination variation range of the foundation pit 1 is usually not large, so that the foundation pit can be adapted to the present invention.
Specifically, a fixing seat 604 is arranged on the baffle 2, and one end of the fixing rod 603, which is far away from the ball 601, is inserted into the fixing seat 604 and is connected to the fixing seat 604 through a screw.
When the supporting shaft 3 is installed, the ball 601 and the fixing rod 603 are installed on the fixing seat 604, then the supporting shaft 3 is hung in the foundation pit, the spherical groove and the ball 601 are aligned, then the rotating sleeve 506 is rotated, and finally the supporting piece 11 and the connecting rod 7 are installed.
A deep foundation pit deformation detection method based on a BIM technology comprises the following steps,
s1, construction preparation;
s2, pre-modeling a BIM model of the foundation pit 1;
s3, installing and constructing a foundation pit 1 and a detection device;
s4, detecting the horizontal span of the foundation pit 1 by the displacement detection device 10, detecting the inclination by the inclination detection device 8, wirelessly transmitting data to the data center by the two, and modifying the BIM by the data center according to the data to obtain an actual foundation pit 1 BIM;
and S5, setting a horizontal span and an inclination for the BIM model of the foundation pit 1 to set an alarm threshold, and alarming when the alarm threshold exceeds the threshold.
Specifically, the BIM model is a centralized display platform for foundation pit excavation, project monitoring, safety state tracking and surrounding environment monitoring, is presented in BIM software in the prior art, and is used for splitting a foundation pit enclosure structure and a measuring point into basic parts in the process of creating the BIM model of the foundation pit to meet the visual requirement of the safety state of the deep foundation pit so as to form a BIM sub-model library of foundation pit monitoring engineering.
The displacement detection device 10 and the inclination measuring device 8 are connected with a wireless node, data are uploaded to a data center of a cloud platform through a wireless transmission module arranged in a cloud gateway, and a database takes a BIM (building information modeling) model as a core and is seamlessly integrated with the BIM model through a data conversion interface adaptation and data fusion technology; through the visual interface of the BIM model, a user can conveniently access information records in the process of foundation pit construction and monitoring, and the monitoring data exceeding the pre-alarm threshold value can be marked and tracked in space and time dimensions.
The whole BIM technology comprises functions of a data center, data analysis, alarm management and control, statistical information, engineering information, system management and the like.
The data center comprises: the method is based on the Internet, the Internet of things and an automatic acquisition technology, and realizes real-time acquisition, processing and transmission of dynamic data of deep foundation pit construction; the method and the system automatically release 3-layer monitoring results of data summary tables, itemized reports (daily reports, weekly reports and monthly reports) and measuring point curves, and facilitate users to know information of project information, monitoring alarms, monitoring data, monitoring curves, field working conditions, engineering positioning and the like of the engineering.
Alarm management and control: according to the alarm rule, automatically generating and issuing 3-level pre-alarm events of yellow, orange and red, including monitoring alarm, patrol alarm, comprehensive alarm and frequency alarm, and realizing closed-loop management of alarm events of 'reminding-handling-controlling-eliminating'; and according to the measurement specification, timely reminding and counting whether each monitoring item uploads data in time or not is carried out, so that the timeliness of the data is ensured.
Statistical information: and counting 3-level alarm events of a constructor and a third party, namely red, orange and yellow, monitoring the data uploading quantity of the sections, the number of the measuring points, basic information, personnel information and each line, mark section, work point and monitoring type.
Engineering information: and maintaining the foundation information of the deep foundation pit engineering, wherein the foundation information comprises a monitoring type, a monitoring section, a measuring point, a pre-alarm threshold value, personnel participating in alarm handling, measuring point state correction, a BIM (building information modeling) model and a manual for operators to use.
And (4) alarming: the deep foundation pit safety monitoring information system based on the BIM technology takes a deep foundation pit as an application object, the monitoring results of the foundation pit and the surrounding environment are implanted into the system and combined with the construction working condition of the deep foundation pit, and the omnibearing coupling of relevant indexes such as deformation history conditions of each monitoring control point along with the excavation of the foundation pit, the depth of the foundation pit, deformation and the like is displayed; the distributed management of the safety monitoring data of the deep foundation pit is realized through the computer internet, the management and the analysis of monitoring data by management and technical personnel at all levels are greatly facilitated, the safety state of the deep foundation pit is judged quickly, effectively and accurately, and the subsequent construction of deep foundation pit engineering is guided.
In addition, detection devices in the prior art, such as surface subsidence, underground water level, pile top horizontal displacement, pile top vertical displacement, steel support axial force, concrete support axial force, pile body deep layer horizontal displacement, working well clearance convergence and the like, can be implanted around the foundation pit 1, so that omnibearing detection is realized.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various changes, modifications, alterations, and substitutions which may be made by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.
Claims (10)
1. The utility model provides a deep basal pit deformation detection device, includes baffle (2) of setting on two inner walls of foundation ditch (1), its characterized in that: a horizontally arranged supporting shaft (3) is arranged between the two baffles (2), and two symmetrically arranged telescopic assemblies are arranged at two ends of the supporting shaft (3);
the telescopic assembly comprises a sliding shaft (4), sliding cavities are formed in two ends of the supporting shaft (3), the sliding shaft (4) can be arranged in the sliding cavities in a sliding mode, one end of the sliding shaft (4) is connected with the baffle (2) in a universal mode, the other end of the sliding shaft is connected with the supporting shaft (3) through an elastic mechanism (5), and a displacement detection device (10) used for detecting the displacement of the sliding shaft (4) is arranged in the sliding cavities;
and inclination measuring devices (8) are further arranged on two sides of the foundation pit (1).
2. The deep foundation pit deformation detection device according to claim 1, wherein: the elastic mechanism (5) comprises a spring (505) arranged in the sliding cavity, one end of the spring (505) is abutted against the inner wall of the sliding cavity, and the other end of the spring acts on the sliding shaft (4).
3. The deep foundation pit deformation detection device according to claim 2, wherein: one end, close to the sliding shaft (4), of the spring (505) is sleeved on the sliding block (501) and is abutted to the connecting ring (502), the connecting ring (502) is fixedly sleeved on the sliding block (501), the connecting ring (502) is matched with the sliding cavity, a gap is formed between the inner wall of one end, far away from the sliding block (501), of the sliding cavity and the sliding block (501), and the displacement detection device (10) is arranged on the sliding block (501).
4. The deep foundation pit deformation detection device according to claim 3, wherein: elasticity mechanism (5) still establish including the cover rotate cover (506) on back shaft (3), it passes through threaded connection to rotate cover (506) back shaft (3), back shaft (3) side is provided with the intercommunication spout (510) in slip chamber, be provided with connecting block (503) in spout (510), connecting block (503) one end fixed connection go up ring (502) lateral surface, the medial surface of other end fixed connection spacing ring (504), spacing ring (504) cover is established on back shaft (3), the lateral surface of spacing ring (504) is provided with and is used for connecting the stop gear of rotating cover (506), be used for when rotating cover (506) and rotate compression spring (505).
5. The deep foundation pit deformation detection device according to claim 4, wherein: stop gear includes holding rod (508), it is close to rotate cover (506) the one end inboard of spacing ring (504) is provided with breach portion (509), breach portion (509) with spacing ring (504) adaptation, holding rod (508) one end is passed rotate cover (506) side and set up in breach portion (509), spacing ring (504) lateral surface be provided with the ring channel of holding rod (508) tip adaptation, holding rod (508) are used for inserting in the ring channel, it is right to form the axial of spacing ring (504).
6. The deep foundation pit deformation detection device of claim 4, wherein: rotate set (506) and set up two between spacing ring (504) on the flexible subassembly, it keeps away from to rotate set (506) one side of spacing ring (504) is provided with the screw hole, the screw hole with back shaft (3) set up with one heart, the fixed threaded connection that is provided with of back shaft (3) lateral surface screw ring (507) of screw hole.
7. The deep foundation pit deformation detection device according to claim 1, wherein: the supporting mechanism comprises a second annular groove arranged on the end face of the supporting shaft (3), a supporting sheet (11) is arranged in the second annular groove, the supporting sheet (11) extends out of the second annular groove and is fixedly connected with one end of a connecting rod (7), the other end of the connecting rod (7) is connected with an embedded part (9), and the embedded part (9) is arranged on the inner wall of the foundation pit (1) and is located above the baffle (2).
8. The deep foundation pit deformation detection device according to claim 7, wherein: the support sheet (11) is of an arc-shaped structure.
9. The deep foundation pit deformation detection device according to claim 1, wherein: the both ends of back shaft (3) still are provided with coupling mechanism (6), coupling mechanism (6) are including setting up the half slot of sliding shaft (4) tip, be provided with spheroid (601) in the half slot, sliding shaft (4) terminal surface detachable connects apron (602), apron (602) are provided with the diameter and are less than the through-hole of spheroid (601), the through-hole inner wall be with the ARC structure of spheroid (601) adaptation, partly extension of spheroid (601) the through-hole, and fixed connection dead lever (603), dead lever (603) detachable connects baffle (2).
10. A deep foundation pit deformation detection method based on a BIM technology is characterized by comprising the following steps: comprises the following steps of (a) preparing a solution,
s1, construction preparation;
s2, pre-modeling a BIM model of the foundation pit (1);
s3, installing and constructing a foundation pit (1) and a detection device;
s4, detecting the horizontal span of the foundation pit (1) by the displacement detection device (10), detecting the inclination by the inclination measuring device (8), wirelessly transmitting data to the data center by the inclination measuring device and the data center, and modifying the BIM by the data center according to the data to obtain an actual BIM of the foundation pit (1);
s5, setting a horizontal span and an inclination for the BIM model of the foundation pit (1) to set an alarm threshold, and alarming when the alarm threshold exceeds the threshold.
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| CN202210492919.1A CN114964131A (en) | 2022-05-07 | 2022-05-07 | BIM technology-based deep foundation pit deformation detection method and device |
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| CN202210492919.1A CN114964131A (en) | 2022-05-07 | 2022-05-07 | BIM technology-based deep foundation pit deformation detection method and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116091283A (en) * | 2023-04-10 | 2023-05-09 | 成都建工第三建筑工程有限公司 | Building full life cycle carbon emission accounting method and system |
| CN116537273A (en) * | 2023-05-23 | 2023-08-04 | 中冶武勘工程技术有限公司 | Automatic deformation monitoring equipment for subway foundation pit and application method of automatic deformation monitoring equipment |
| CN117910118A (en) * | 2024-03-19 | 2024-04-19 | 成都建工第三建筑工程有限公司 | Building structure safety evaluation method and system based on BIM model |
| CN118114571A (en) * | 2024-03-22 | 2024-05-31 | 广州广检建设工程检测中心有限公司 | Foundation pit horizontal displacement prediction method, device, system, electronic equipment and medium |
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2022
- 2022-05-07 CN CN202210492919.1A patent/CN114964131A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116091283A (en) * | 2023-04-10 | 2023-05-09 | 成都建工第三建筑工程有限公司 | Building full life cycle carbon emission accounting method and system |
| CN116091283B (en) * | 2023-04-10 | 2023-07-18 | 成都建工第三建筑工程有限公司 | Building full life cycle carbon emission accounting method and system |
| CN116537273A (en) * | 2023-05-23 | 2023-08-04 | 中冶武勘工程技术有限公司 | Automatic deformation monitoring equipment for subway foundation pit and application method of automatic deformation monitoring equipment |
| CN116537273B (en) * | 2023-05-23 | 2024-04-16 | 中冶武勘工程技术有限公司 | Automatic deformation monitoring equipment for subway foundation pit and application method of automatic deformation monitoring equipment |
| CN117910118A (en) * | 2024-03-19 | 2024-04-19 | 成都建工第三建筑工程有限公司 | Building structure safety evaluation method and system based on BIM model |
| CN118114571A (en) * | 2024-03-22 | 2024-05-31 | 广州广检建设工程检测中心有限公司 | Foundation pit horizontal displacement prediction method, device, system, electronic equipment and medium |
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