CN114182767B - Device and method for monitoring construction of deep foundation pit adjacent to existing railway - Google Patents
Device and method for monitoring construction of deep foundation pit adjacent to existing railway Download PDFInfo
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- CN114182767B CN114182767B CN202111592433.7A CN202111592433A CN114182767B CN 114182767 B CN114182767 B CN 114182767B CN 202111592433 A CN202111592433 A CN 202111592433A CN 114182767 B CN114182767 B CN 114182767B
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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Abstract
The application discloses neighbouring current railway deep basal pit construction monitoring devices and method relates to the technical field of basal pit construction monitoring, and it is including setting up the mount pad in the basal pit and being located the infrared transmitter on the mount pad, and the rigid coupling has the reflection subassembly that is used for carrying out the reflection to the infrared light that infrared transmitter sent on the supporting construction, is provided with the receiving plate that is used for receiving the infrared light that reflection subassembly reflected out on the mount pad, and infrared transmitter rigid coupling is on the receiving plate. The application has the effect of accurate monitoring supporting construction's slope range.
Description
Technical Field
The application relates to the technical field of foundation pit construction monitoring, in particular to a device and a method for monitoring the construction of a deep foundation pit adjacent to an existing railway.
Background
Along with the construction of large-scale infrastructure, a large number of deep foundation pit projects under complex environments are generated, and in the process of excavation, the support structure is excessively displaced, and larger sedimentation occurs in the surrounding environment, so that the safety of the foundation pit and surrounding building (construction) is affected. Only the risk sources of the foundation pit supporting structure and the surrounding environment are systematically and comprehensively analyzed and monitored, the safety states of the supporting structure and the surrounding environment are judged, necessary engineering emergency measures are timely taken when abnormal conditions occur, the smooth proceeding of engineering construction can be ensured, and engineering risks are effectively managed and controlled.
The chinese patent with application number 201821189956.0 in the related art proposes a foundation pit support deformation measuring device, including two sets of symmetrical support structures of installing at foundation pit both sides wall, equal sliding connection has the mounting panel on the bottom outer wall of two sets of support structures, install infrared transmitter and infrared receiver on two sets of mounting panels respectively, inclination detection device is still installed to support structure's lateral wall different positions, and inclination detection device is located the top of mounting panel, inclination detection device's inner chamber is equipped with electrolyte groove, four sets of detection contacts are installed to inclination detection device's both sides wall symmetry, industrial computer is still installed to inclination detection device's right side wall.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: when the periphery of the foundation pit is adjacently provided with a railway, a train drives through, so that the foundation pit vibrates, supporting structures on two side walls of the foundation pit vibrate synchronously, electrolyte in the inclination detection device is caused to shake, after the electrolyte contacts a detection contact when shaking, the detection contact drives an industrial personal computer to work, the industrial personal computer analyzes and processes the inclination of the supporting structures, the industrial personal computer is caused to misjudge the inclination of the supporting structures, and the accuracy of monitoring the displacement offset of the foundation pit by the measuring device is poor.
Disclosure of Invention
In order to solve the problem that the accuracy of monitoring the foundation pit supporting position offset by the measuring device is poor, the application provides a device and a method for monitoring the construction of a deep foundation pit adjacent to the existing railway.
In a first aspect, the application provides a monitoring device for construction of a deep foundation pit adjacent to an existing railway, which adopts the following technical scheme:
the utility model provides an adjacent existing railway deep basal pit construction monitoring devices, includes the mount pad that sets up in the foundation ditch and is located infrared transmitter on the mount pad, the rigid coupling has the reflection subassembly that is used for right infrared transmitter sent carries out the reflection on the supporting construction infrared transmitter, be provided with on the mount pad and be used for right the infrared light that reflection subassembly reflected carries out the receiving plate that receives, infrared transmitter rigid coupling is in on the receiving plate.
Through adopting above-mentioned technical scheme, the mount pad erects the receiving plate in the foundation ditch, installs infrared transmitter on the receiving plate, installs reflection subassembly on supporting construction, starts infrared transmitter, infrared transmitter towards reflection subassembly direction emission infrared light, reflection subassembly reflects infrared light, and the infrared light after the reflection shines on the receiving plate, according to the displacement offset of infrared light point on the receiving plate, analysis supporting construction's slope range. The inclination amplitude of the supporting structure is amplified and displayed through reflection of infrared light by the construction monitoring device for the adjacent existing railway deep foundation pit, so that the inclination amplitude of the supporting structure can be rapidly and accurately monitored, and constructors can respond to and maintain the supporting structure in time.
Optionally, the reflecting component comprises a reflecting mirror fixedly connected on the supporting structure and a transparent protecting shell covered on the periphery of the reflecting mirror.
Through adopting above-mentioned technical scheme, the protecting crust carries out shade protection to the speculum, avoids the speculum to be knocked with the damage deformation as far as possible for the speculum carries out stable reflection to the infrared light that is sent by infrared transmitter, avoids influencing the reflection effect of speculum to infrared light because of the deformation of speculum as far as possible.
Optionally, the receiving board is provided with scale marks, and the scale marks are located on one side of the receiving board, which is close to the reflecting component.
Through adopting above-mentioned technical scheme, the setting of scale mark, the constructor of being convenient for discerns the displacement offset of infrared light point on the receiving plate fast, and then responds in time and maintains supporting construction.
Optionally, the ball joint has the mounting panel on the mount pad, the perpendicular rigid coupling of receiving plate is in on the mounting panel, be provided with on the mount pad and be used for adjusting the mounting panel with the adjusting part of contained angle size between the mount pad.
By adopting the technical scheme, the receiving plate is adjustably arranged on the mounting seat through the mounting plate, and the angle between the mounting plate and the mounting seat is adjusted through the adjusting component, so that the position of the infrared light point received by the receiving plate is overlapped with the position of the infrared emitter, and the receiving plate is parallel to the supporting structure; when the support structure is inclined, the position of the infrared light point received by the receiving plate is not coincident with the position of the infrared emitter, and the inclination amplitude of the support structure is rapidly analyzed by observing the offset between the position of the infrared light point and the position of the infrared emitter.
Optionally, a first receiving module is disposed on a side of the receiving board, which is close to the reflecting component, and second receiving modules are disposed at two ends of the first receiving module, and a data processing module is disposed on the mounting base, and the first receiving module and the second receiving module are electrically connected with the data processing module.
By adopting the technical scheme, when the position of the infrared light point received by the receiving plate is within the range covered by the first receiving module, the displacement deflection of the supporting structure is in the allowable deflection range, and the data processing module analyzes the inclination amplitude of the supporting structure according to the position of the infrared light point on the first receiving module; when the position of the infrared light point received on the receiving plate is out of the range covered by the first receiving module and irradiates the second receiving module, the displacement deflection of the supporting structure is large, construction risks exist, and the data processing module can send out an alarm at the moment, so that constructors can respond to and maintain the supporting structure in time.
Optionally, set up first gasbag and second gasbag on the mount pad, first gasbag with the intercommunication is provided with venturi between the second gasbag, venturi with the data processing module electricity is connected, first gasbag with all be equipped with liquid in the second gasbag, the rigid coupling has the supporting rod on the supporting structure, the one end that supporting structure was kept away from to the supporting rod with first gasbag contact.
By adopting the technical scheme, when the supporting structure is settled, the supporting structure drives the abutting rod to move towards the first air bag, the abutting rod extrudes the first air bag, and liquid in the first air bag flows into the second air bag through the venturi tube; the data processing module can obtain the sedimentation speed of the supporting structure by analyzing the flow velocity of the liquid in the venturi tube, and a constructor can respond and maintain the supporting structure in time according to the data of the data processing module.
Optionally, a cross valve is disposed in the first air bag, and the cross valve is located at one side of the abutting rod, which is close to the second air bag.
Through adopting above-mentioned technical scheme, when the train is driven and is made foundation ditch vibration, the cross valve can restrict the liquid in the first gasbag and freely flow to in the second gasbag through venturi because of rocking, guarantee venturi and data processing module to the accurate monitoring of supporting construction sedimentation rate.
In a second aspect, the present application provides a method for monitoring construction of a deep foundation pit adjacent to an existing railway, which adopts the following technical scheme:
s1, installing an infrared emitter and a reflecting assembly: the reflector and the protective shell are arranged on the supporting structure, and the receiving plate and the infrared emitter are erected in the foundation pit through the mounting seat;
s2, adjusting a mounting plate: starting an infrared emitter, reflecting infrared light emitted by the infrared emitter by a reflecting mirror, adjusting the included angle between the mounting plate and the mounting seat by an adjusting component according to the position of an infrared light point on the receiving plate, so that the position of the infrared light point received by the receiving plate coincides with the position of the infrared emitter, and the receiving plate is parallel to the supporting structure;
s3, injecting liquid into the first air bag and the second air bag: the liquid is filled in the first air bag and the second air bag, and after the liquid in the first air bag and the liquid in the second air bag flow stably, the liquid props up the first air bag, so that the abutting rod is in contact with the first air bag but does not squeeze the first air bag;
s4, inclination and sedimentation analysis of the supporting structure: the data processing module judges the sedimentation amplitude of the supporting structure by analyzing the flow velocity of the liquid in the venturi tube; the data processing module judges the inclination amplitude of the supporting structure by analyzing the position of the infrared light point on the first receiving module.
Through adopting above-mentioned technical scheme, install reflecting component on supporting structure, erect infrared transmitter in the foundation ditch, adjust the receiving plate to with supporting structure parallel through adjusting component, then annotate liquid in to first gasbag and the second gasbag for the butt pole is with first gasbag contact but not extrusion first gasbag. The infrared emitter is started, the reflecting mirror reflects infrared light emitted by the infrared emitter, the reflected infrared light irradiates the receiving plate, and the data processing module judges the inclination amplitude of the supporting structure by analyzing the position of the infrared light point on the first receiving module. If the supporting structure is settled, the supporting rod extrudes the first air bag, liquid in the first air bag flows into the second air bag through the venturi tube, and the data processing module can obtain the settlement speed of the supporting structure by analyzing the flow speed of the liquid in the venturi tube.
In summary, the present application includes at least one of the following beneficial technical effects:
1. starting an infrared emitter, emitting infrared light towards a reflection assembly, reflecting the infrared light by the reflection assembly, irradiating the reflected infrared light onto a receiving plate, and judging the inclination amplitude of the support structure by a data processing module through analyzing the position of an infrared light point on a first receiving module;
2. when the supporting structure is settled, the supporting structure drives the supporting rod to move towards the first air bag, the supporting rod extrudes the first air bag, liquid in the first air bag flows into the second air bag through the venturi tube, and the data processing module can obtain the settlement speed of the supporting structure by analyzing the flow speed of the liquid in the venturi tube;
3. when the train drives through to vibrate the foundation pit, the cross valve can limit liquid in the first air bag to freely flow into the second air bag through the venturi tube due to shaking, and accurate monitoring of the sedimentation speed of the support structure by the venturi tube and the data processing module is ensured.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present application.
Fig. 2 is a schematic cross-sectional view of a mounting base, a receiving plate, a data processing module, a support rod, a support structure, and a foundation pit in an embodiment of the present application.
FIG. 3 is a schematic diagram of the structure of an infrared emitter, a receiving plate, an adjustment assembly, a data processing module, a first balloon, a second balloon, a venturi tube, and a docking rod in an embodiment of the present application.
Fig. 4 is an enlarged partial schematic view of the portion a in fig. 2.
Fig. 5 is a partially enlarged schematic view of the portion B in fig. 2.
Fig. 6 is a schematic flow chart of a method for monitoring construction of a deep foundation pit adjacent to an existing railway in an embodiment of the application.
Reference numerals: 1. a mounting base; 2. an infrared emitter; 3. a reflective assembly; 31. a reflecting mirror; 32. a protective shell; 4. a receiving plate; 5. scale marks; 6. a mounting plate; 7. an adjustment assembly; 71. a screw; 72. a thread cylinder; 8. a first receiving module; 9. a second receiving module; 10. a data processing module; 11. a first air bag; 12. a second air bag; 13. a venturi tube; 14. a butt joint rod; 15. a cross valve; 16. a support structure; 17. a foundation pit.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-6.
The embodiment of the application discloses a construction monitoring device for a deep foundation pit adjacent to an existing railway.
Referring to fig. 1, a construction monitoring device for a deep foundation pit adjacent to an existing railway comprises a mounting seat 1 arranged in a foundation pit 17 and an infrared emitter 2 arranged on the mounting seat 1, wherein a supporting structure 16 is fixedly connected to the side wall of the foundation pit 17 through an embedded part, in the embodiment of the application, the supporting structure 16 is arranged as a supporting plate, and the supporting plate is fixedly connected to the side wall of the foundation pit 17 stably. The supporting structure 16 is fixedly connected with a reflecting component 3 for reflecting infrared light emitted by the infrared emitter 2, the mounting seat 1 is provided with a receiving plate 4 for receiving the infrared light reflected by the reflecting component 3, and the infrared emitter 2 is fixedly connected on the receiving plate 4 through screws.
Referring to fig. 2 and 3, a first air bag 11 and a second air bag 12 are adhered to the mounting seat 1, liquid is filled in the first air bag 11 and the second air bag 12, a venturi tube 13 is arranged between the first air bag 11 and the second air bag 12 in a communicating manner, and the venturi tube 13 is fixedly connected to the mounting seat 1 through screws. The data processing module 10 is fixedly connected to the mounting seat 1 through screws, the venturi tube 13 is electrically connected with the data processing module 10, and the data processing module 10 can monitor and analyze the flow rate of liquid in the venturi tube 13.
Referring to fig. 2 and 3, the support structure 16 is fixedly connected with a supporting rod 14 by a screw, and an abutting plate is adhered to one end of the supporting rod 14 away from the support structure 16. The first air bag 11 and the second air bag 12 are filled with liquid, the liquid is filled in the first air bag 11 and the second air bag 12, and after the liquid in the first air bag 11 and the second air bag 12 flows smoothly, the liquid props up the first air bag 11, so that the abutting plate is in contact with the first air bag 11 but does not press the first air bag 11.
In order to limit the free flow of the liquid in the first air bag 11 into the second air bag 12 due to shaking through the venturi tube 13, referring to fig. 3 and 4, a cross valve 15 is disposed in the first air bag 11, the cross valve 15 is integrally formed with the first air bag 11, and the cross valve 15 is located at one side of the abutting rod 14 close to the second air bag 12.
When the train runs through the foundation pit 17 to vibrate, the cross valve 15 is not extruded at this time, so the cross valve 15 can limit the liquid in the first air bag 11 to freely flow into the second air bag 12 through the venturi tube 13 due to shaking, and the accurate monitoring of the sedimentation speed of the support structure 16 by the venturi tube 13 and the data processing module 10 is ensured. When the support structure 16 is settled, the support structure 16 drives the supporting rod 14 to move towards the first air bag 11, the supporting rod 14 extrudes the first air bag 11, the first air bag 11 drives the cross valve 15 to deform, the liquid in the first air bag 11 passes through the cross valve 15 and flows into the second air bag 12 through the venturi tube 13, and the data processing module 10 can obtain the settlement speed of the support structure 16 by analyzing the flow rate of the liquid in the venturi tube 13.
Referring to fig. 3, the mounting base 1 is provided with a mounting plate 6 in a ball-hinged manner, the mounting plate 6 may be triangular, square or round, in this embodiment, the mounting plate 6 is provided with a triangular shape, and the receiving plate 4 is vertically and fixedly connected to the mounting plate 6 by a screw. Three groups of adjusting components 7 for adjusting the included angle between the mounting plate 6 and the mounting seat 1 are arranged on the mounting seat 1, and the three groups of adjusting components 7 are in one-to-one correspondence with three corners of the mounting plate 6.
Referring to fig. 3, the adjusting assembly 7 includes two threaded rods 71 with opposite threads and a threaded cylinder 72 threaded between the two threaded rods 71, wherein one end of one threaded rod 71, which is far away from the threaded cylinder 72, is vertically welded on the mounting base 1, and one end of the other threaded rod 71, which is far away from the threaded cylinder 72, is ball-hinged on the mounting plate 6. Through rotating screw section of thick bamboo 72, screw section of thick bamboo 72 drives two screw rods 71 towards being close to each other/keep away from the direction motion, realizes adjusting the purpose of distance between a corner of mounting panel 6 and mount pad 1, and then reaches the effect of adjusting the contained angle size between mounting panel 6 and the mount pad 1. The included angle between the mounting plate 6 and the mounting seat 1 is adjusted through the adjusting component 7, so that the receiving plate 4 is parallel to the supporting structure 16.
Referring to fig. 3, a first receiving module 8 is adhered to an end surface of the receiving plate 4 near the reflecting component 3, a length direction of the first receiving module 8 is consistent with a length direction of the receiving plate 4, a second receiving module 9 is adhered to two ends of the receiving plate 4, and the first receiving module 8 and the second receiving module 9 are electrically connected with a data processing module 10.
The reflection assembly 3 reflects the infrared light emitted by the infrared emitter 2 to the receiving board 4, when the position of the infrared light point received by the receiving board 4 is within the range covered by the first receiving module 8, the displacement deflection of the supporting structure 16 is within the allowable deflection range, and at this time, the data processing module 10 analyzes the inclination amplitude of the supporting structure 16 according to the position of the infrared light point on the first receiving module 8; when the position of the infrared light spot received on the receiving board 4 is outside the range covered by the first receiving module 8 and irradiates on the second receiving module 9, the displacement deflection of the supporting structure 16 is large, construction risks exist, and at this time, the data processing module 10 can give an alarm, so that constructors can respond to and maintain the supporting structure 16 in time.
Referring to fig. 3, a scale line 5 is engraved on the receiving plate 4, the scale line 5 is located on one side of the receiving plate 4 close to the reflecting component 3, the scale line 5 extends along the length direction of the receiving plate 4, and the arrangement of the scale line 5 facilitates the constructor to quickly identify the displacement offset of the infrared light point on the receiving plate 4, so that the supporting structure 16 is responded and maintained in time.
Referring to fig. 5, the reflection assembly 3 includes a reflection mirror 31 adhered to the support structure 16 and a transparent protective case 32 covering the outer circumference of the reflection mirror 31, and the protective case 32 is fixedly coupled to the support structure 16 by screws. The protective shell 32 protects the reflector 31 from being damaged and deformed as far as possible, so that the reflector 31 stably reflects infrared light emitted by the infrared emitter 2, and the reflection effect of the reflector 31 on the infrared light is prevented from being influenced due to deformation of the reflector 31 as far as possible.
The implementation principle of the construction monitoring device adjacent to the existing railway deep foundation pit is as follows: install reflection subassembly 3 on supporting structure 16, erect infrared transmitter 2 in foundation ditch 17, start infrared transmitter 2, reflection mirror 31 reflects the infrared light that infrared transmitter 2 sent, according to the position of infrared light point on receiving plate 4, adjust the contained angle size between mounting panel 6 and mount pad 1 through adjusting component 7 for the position of infrared light point received on receiving plate 4 coincides with the position of infrared transmitter 2, and receiving plate 4 is parallel with supporting structure 16 this moment.
The first and second air bags 11 and 12 are filled with liquid, the liquid fills the first and second air bags 11 and 12, and after the liquid in the first and second air bags 11 and 12 flows smoothly, the liquid props up the first air bag 11 so that the abutting rod 14 contacts the first air bag 11 but does not press the first air bag 11.
The reflection assembly 3 reflects the infrared light emitted by the infrared emitter 2 to the receiving board 4, when the position of the infrared light point received by the receiving board 4 is within the range covered by the first receiving module 8, the displacement deflection of the supporting structure 16 is within the allowable deflection range, and at this time, the data processing module 10 analyzes the inclination amplitude of the supporting structure 16 according to the position of the infrared light point on the first receiving module 8; when the position of the infrared light spot received on the receiving board 4 is outside the range covered by the first receiving module 8 and irradiates on the second receiving module 9, the displacement deflection of the supporting structure 16 is large, construction risks exist, and at this time, the data processing module 10 can give an alarm, so that constructors can respond to and maintain the supporting structure 16 in time.
When the support structure 16 is settled, the support structure 16 drives the supporting rod 14 to move towards the first air bag 11, the supporting rod 14 extrudes the first air bag 11, the first air bag 11 drives the cross valve 15 to deform, the liquid in the first air bag 11 passes through the cross valve 15 and flows into the second air bag 12 through the venturi tube 13, and the data processing module 10 can obtain the settlement speed of the support structure 16 by analyzing the flow rate of the liquid in the venturi tube 13.
The embodiment of the application also discloses a construction monitoring method for the deep foundation pit adjacent to the existing railway.
Referring to fig. 6, based on the above-mentioned one kind of construction monitoring device for a deep foundation pit adjacent to an existing railway, the one kind of construction monitoring method for a deep foundation pit adjacent to an existing railway includes the following steps:
s1, installing an infrared emitter 2 and a reflecting assembly 3: the reflector 31 and the protective shell 32 are arranged on the supporting structure 16, and the receiving plate 4 and the infrared emitter 2 are erected in the foundation pit 17 through the mounting base 1;
s2, adjusting the mounting plate 6: starting the infrared emitter 2, reflecting infrared light emitted by the infrared emitter 2 by the reflecting mirror 31, and adjusting the included angle between the mounting plate 6 and the mounting seat 1 through the adjusting component 7 according to the position of the infrared light point on the receiving plate 4, so that the position of the infrared light point received by the receiving plate 4 is coincident with the position of the infrared emitter 2, and the receiving plate 4 is parallel to the supporting structure 16;
s3, injecting liquid into the first air bag 11 and the second air bag 12: the liquid is filled in the first air bag 11 and the second air bag 12, and after the liquid in the first air bag 11 and the liquid in the second air bag 12 flow smoothly, the liquid props up the first air bag 11, so that the abutting rod 14 is in contact with the first air bag 11 but does not press the first air bag 11;
s4, inclination and sedimentation analysis of the supporting structure 16: the data processing module 10 judges the sedimentation amplitude of the support structure 16 by analyzing the flow rate of the liquid in the venturi tube 13; the data processing module 10 determines the tilt amplitude of the support structure 16 by analyzing the position of the infrared light spot on the first receiving module 8.
The implementation principle of the construction monitoring method for the adjacent existing railway deep foundation pit is as follows: the reflection assembly 3 is installed on the supporting structure 16, the infrared emitter 2 is erected in the foundation pit 17, the receiving plate 4 is adjusted to be parallel to the supporting structure 16 by the adjusting assembly 7, and then liquid is injected into the first air bag 11 and the second air bag 12, so that the abutting rod 14 is in contact with the first air bag 11 but does not press the first air bag 11. The infrared emitter 2 is started, the reflecting mirror 31 reflects infrared light emitted by the infrared emitter 2, the reflected infrared light irradiates the receiving board 4, and the data processing module 10 judges the inclination amplitude of the supporting structure 16 by analyzing the position of the infrared light point on the first receiving module 8. If the support structure 16 is settled, the supporting rod 14 presses the first air bag 11, the liquid in the first air bag 11 flows into the second air bag 12 through the venturi tube 13, and the data processing module 10 can obtain the settlement speed of the support structure 16 by analyzing the flow rate of the liquid in the venturi tube 13.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (6)
1. The utility model provides a neighbouring existing railway deep basal pit construction monitoring devices, includes mount pad (1) and being located in foundation ditch (17) on mount pad (1) infrared transmitter (2), its characterized in that: the infrared emitter (2) is fixedly connected to the receiving plate (4) for receiving the infrared light reflected by the reflecting assembly (3), and the receiving plate (4) is arranged on the mounting seat (1);
the device is characterized in that a data processing module (10) is arranged on the mounting seat (1), a first air bag (11) and a second air bag (12) are arranged on the mounting seat (1), a venturi tube (13) is arranged between the first air bag (11) and the second air bag (12) in a communicating mode, the venturi tube (13) is electrically connected with the data processing module (10), liquid is filled in each of the first air bag (11) and the second air bag (12), a supporting rod (14) is fixedly connected to a supporting structure (16), and one end, far away from the supporting structure (16), of each supporting rod (14) is in contact with the first air bag (11);
a cross valve (15) is arranged in the first air bag (11), and the cross valve (15) is positioned on one side of the abutting rod (14) close to the second air bag (12).
2. The construction monitoring device for a deep foundation pit adjacent to an existing railway according to claim 1, wherein: the reflecting component (3) comprises a reflecting mirror (31) fixedly connected to the supporting structure (16) and a transparent protective shell (32) covered on the periphery of the reflecting mirror (31).
3. The construction monitoring device for a deep foundation pit adjacent to an existing railway according to claim 1, wherein: the receiving plate (4) is provided with scale marks (5), and the scale marks (5) are positioned on one side, close to the reflecting component (3), of the receiving plate (4).
4. The construction monitoring device for a deep foundation pit adjacent to an existing railway according to claim 2, wherein: the mounting base (1) is provided with a mounting plate (6) in a ball joint mode, the receiving plate (4) is vertically and fixedly connected to the mounting plate (6), and the mounting base (1) is provided with an adjusting component (7) used for adjusting the size of an included angle between the mounting plate (6) and the mounting base (1).
5. The construction monitoring device for a deep foundation pit adjacent to an existing railway according to claim 4, wherein: the receiving plate (4) is close to one side of the reflection assembly (3) and is provided with a first receiving module (8), the receiving plate (4) is provided with second receiving modules (9) at two ends of the first receiving module (8), and the first receiving module (8) and the second receiving modules (9) are electrically connected with the data processing module (10).
6. A method for monitoring construction of a deep foundation pit adjacent to an existing railway is characterized by comprising the following steps: an existing railway deep foundation pit construction monitoring device, based on an existing railway deep foundation pit construction monitoring device, according to any one of claims 1-5, the existing railway deep foundation pit construction monitoring method comprising the steps of:
s1, installing an infrared emitter (2) and a reflecting component (3): the reflector (31) and the protective shell (32) are arranged on the supporting structure (16), and the receiving plate (4) and the infrared emitter (2) are erected in the foundation pit (17) through the mounting seat (1);
s2, adjusting the mounting plate (6): starting the infrared emitter (2), reflecting infrared light emitted by the infrared emitter (2) by the reflecting mirror (31), and adjusting the included angle between the mounting plate (6) and the mounting seat (1) through the adjusting component (7) according to the position of the infrared light point on the receiving plate (4) so that the position of the infrared light point received by the receiving plate (4) coincides with the position of the infrared emitter (2), wherein the receiving plate (4) is parallel to the supporting structure (16);
s3, injecting liquid into the first air bag (11) and the second air bag (12): the liquid is filled in the first air bag (11) and the second air bag (12), and after the liquid in the first air bag (11) and the liquid in the second air bag (12) flow smoothly, the liquid props up the first air bag (11) so that the abutting rod (14) is in contact with the first air bag (11) but does not press the first air bag (11);
s4, inclination and sedimentation analysis of the supporting structure (16): the data processing module (10) judges the sedimentation amplitude of the supporting structure (16) by analyzing the flow velocity of the liquid in the venturi tube (13); the data processing module (10) determines the inclination of the support structure (16) by analyzing the position of the infrared light spot on the first receiving module (8).
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| CN202111592433.7A CN114182767B (en) | 2021-12-23 | 2021-12-23 | Device and method for monitoring construction of deep foundation pit adjacent to existing railway |
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| CN202111592433.7A CN114182767B (en) | 2021-12-23 | 2021-12-23 | Device and method for monitoring construction of deep foundation pit adjacent to existing railway |
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| CN114182767A CN114182767A (en) | 2022-03-15 |
| CN114182767B true CN114182767B (en) | 2023-04-21 |
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|---|---|---|---|---|
| CN208736366U (en) * | 2018-07-26 | 2019-04-12 | 魏一祥 | A kind of pattern foundation pit supporting structure deformation measuring device |
| CN211228513U (en) * | 2019-08-09 | 2020-08-11 | 广东祥益建筑工程有限公司 | Foundation pit monitoring device |
| CN211690465U (en) * | 2019-11-23 | 2020-10-16 | 江苏亚道建设工程检测有限公司 | Pile foundation verticality detector |
| CN212477846U (en) * | 2020-05-21 | 2021-02-05 | 广州市吉华勘测股份有限公司 | Foundation pit horizontal displacement monitoring device |
| CN111705851B (en) * | 2020-06-18 | 2021-08-17 | 深圳市蛇口招商港湾工程有限公司 | Deep foundation pit supporting structure top horizontal displacement monitoring device and using method |
| CN213805524U (en) * | 2020-11-24 | 2021-07-27 | 安徽远信工程项目管理有限公司 | Foundation pit wall displacement monitoring device based on laser ranging technology |
| CN112857212B (en) * | 2020-12-30 | 2022-09-30 | 张东昱 | Large-scale structure multipoint displacement and rotation response synchronous monitoring system and data analysis method thereof |
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