CN114182767A - 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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- CN114182767A CN114182767A CN202111592433.7A CN202111592433A CN114182767A CN 114182767 A CN114182767 A CN 114182767A CN 202111592433 A CN202111592433 A CN 202111592433A CN 114182767 A CN114182767 A CN 114182767A
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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 be close to existing railway deep basal pit construction monitoring devices and method relates to the technical field of foundation ditch construction monitoring, and it is including setting up the mount pad in the foundation ditch and being located the infra-red transmitter on the mount pad, and the last rigid coupling of supporting construction has the reflection subassembly that is used for carrying out the reflection to the infrared light that infra-red transmitter sent, is provided with the receiver plate that is used for carrying out the receipt to the infrared light that reflection subassembly reflects on the mount pad, and the infra-red transmitter rigid coupling is on the receiver plate. This 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 construction of a deep foundation pit adjacent to an existing railway.
Background
With the construction of large-scale infrastructure, a large amount of deep foundation pit engineering under a complex environment is generated, and in the excavation process, the displacement of a supporting structure is overlarge, and the surrounding environment is greatly settled, so that the safety of a foundation pit and surrounding buildings (structures) is influenced. 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, and necessary engineering emergency measures are taken in time when abnormal conditions occur, so that the smooth proceeding of engineering construction can be ensured, and the engineering risks are effectively managed and controlled.
Chinese patent with application number 201821189956.0 among the correlation technique, a excavation supporting deformation measuring device is proposed, install the supporting construction at the wall of excavation both sides including two sets of symmetries, equal sliding connection has the mounting panel on two sets of supporting construction's the bottom outer wall, install infra-red transmitter and infrared receiver on two sets of mounting panels respectively, inclination detection device is still installed to supporting construction'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 the electrolysis cistern, four groups of detection contact are installed to inclination detection device's both sides wall symmetry, the industrial computer is still installed to inclination detection device's right side wall.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the peripheral neighbouring railway that is provided with of foundation ditch, the train drives over for the foundation ditch vibration, the supporting construction synchronous oscillation on the wall of foundation ditch both sides leads to the electrolyte in the slope detection device to rock, after touching the detection contact when electrolyte rocks, the industrial computer work is ordered about to the detection contact, and the industrial computer carries out analysis processes to supporting construction's inclination, leads to the industrial computer to produce the erroneous judgement to supporting construction's inclination, makes measuring device poor to the precision of foundation ditch support displacement deflection monitoring.
Disclosure of Invention
In order to solve the problem that the accuracy of monitoring the offset of a foundation pit supporting position by a measuring device is poor, the application provides a monitoring device and a monitoring method for construction of a deep foundation pit adjacent to an existing railway.
In a first aspect, the application provides a near existing railway deep basal pit construction monitoring devices, adopts following technical scheme:
the utility model provides a neighbouring existing railway deep basal pit construction monitoring devices, is including setting up the mount pad in the foundation ditch and being located infrared transmitter on the mount pad, the last rigid coupling of supporting construction is used for right infrared light that infrared transmitter sent carries out the reflection subassembly that reflects, be provided with on the mount pad be used for right the infrared light that reflection subassembly reflected goes out carries out the receiving board that receives, infrared transmitter rigid coupling is in on the receiving board.
Through adopting above-mentioned technical scheme, the mount pad will receive the grillage and establish in the foundation ditch, install infrared emitter on the receiving panel, install reflection assembly on supporting construction, start infrared emitter, infrared emitter is towards reflection assembly direction transmission infrared light, and reflection assembly reflects the infrared light, and by the infrared irradiation after the reflection on the receiving panel, according to the displacement deflection of infrared light spot on the receiving panel, analysis supporting construction's inclination. The inclination amplitude of the supporting structure is amplified and displayed through reflection of infrared light by the aid of the monitoring device for construction of the deep foundation pit of the adjacent existing railway, the inclination amplitude of the supporting structure can be rapidly and accurately monitored, and a constructor can respond to and maintain the supporting structure in time.
Optionally, the reflection assembly includes a reflector fixedly connected to the supporting structure and a transparent protective shell covering the periphery of the reflector.
Through adopting above-mentioned technical scheme, the protecting crust carries out the shade protection to the speculum, avoids the speculum to be collided with the damage deformation as far as possible for the speculum carries out stable reflection to the infrared light that is sent by infrared emitter, avoids influencing the reflection effect of speculum to the infrared light because of the deformation of speculum as far as possible.
Optionally, the receiving plate is provided with scale marks, and the scale marks are located on one side of the receiving plate close to the reflection assembly.
Through adopting above-mentioned technical scheme, the setting of scale mark, the constructor of being convenient for discerns the displacement deflection of infrared light spot on the receiver plate fast, and then carries out timely response and maintenance to supporting construction.
Optionally, the ball is articulated on the mount pad and is had the mounting panel, 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 size of an included angle between the mounting plate and the mounting seat is adjusted through the adjusting assembly, so that the position of an infrared light spot received on the receiving plate is coincided with the position of the infrared transmitter, and the receiving plate is parallel to the supporting structure; when the supporting structure inclines, the position of the infrared light spot received by the receiving plate is not coincident with the position of the infrared emitter, and the inclination amplitude of the supporting structure is rapidly analyzed by observing the offset between the position of the infrared light spot and the position of the infrared emitter.
Optionally, one side of the receiving plate close to the reflection assembly is provided with a first receiving module, the receiving plate is provided with second receiving modules at two ends of the first receiving module, the mounting seat is provided with a data processing module, 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 spot received by the receiving plate is within the range covered by the first receiving module, the displacement offset of the supporting structure is within the allowable offset range, and at the moment, the data processing module analyzes the inclination amplitude of the supporting structure according to the position of the infrared light spot on the first receiving module; when the position of the infrared light spot received by the receiving plate is outside the range covered by the first receiving module and irradiates the second receiving module, the displacement offset of the supporting structure is large, construction risks exist, the data processing module can send an alarm at the moment, and a constructor 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 butt rod on the supporting construction, the butt rod keep away from supporting construction one end 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 velocity of the supporting structure by analyzing the flow velocity of the liquid in the Venturi tube, and a constructor can respond to and maintain the supporting structure in time according to the data of the data processing module.
Optionally, a cross valve is arranged in the first air bag, and the cross valve is located on one side of the abutting rod close to the second air bag.
Through adopting above-mentioned technical scheme, when the train drives over and makes the foundation ditch vibration, cross valve can restrict the liquid in the first gasbag and in via venturi free flow to the second gasbag because of rocking, guarantee venturi and data processing module are to the accurate monitoring of supporting construction settlement speed.
In a second aspect, the 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 reflection assembly: mounting the reflector and the protective shell on a supporting structure, and erecting the receiving plate and the infrared transmitter in the foundation pit through a mounting seat;
s2, adjusting the mounting plate: starting the infrared emitter, reflecting infrared light emitted by the infrared emitter by the reflector, and adjusting the included angle between the mounting plate and the mounting seat by the adjusting assembly according to the position of an infrared light spot on the receiving plate so that the position of the infrared light spot received on the receiving plate is superposed with the position of the infrared emitter, and the receiving plate is parallel to the supporting structure;
s3, injecting liquid into the first balloon and the second balloon: 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 second air bag flows stably, the liquid props up the first air bag, so that the butting rod is in contact with the first air bag but does not extrude the first air bag;
s4, inclination and settlement analysis of a supporting structure: the data processing module judges the sedimentation amplitude of the supporting structure by analyzing the flow velocity of 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 spot on the first receiving module.
Through adopting above-mentioned technical scheme, install reflection assembly on supporting construction, erect infrared transmitter in the foundation ditch, adjust the receiver plate to be parallel with supporting construction through adjusting part, then annotate liquid into first gasbag and second gasbag for the contact of butt joint pole and first gasbag does not extrude first gasbag. The infrared emitter is started, the reflector 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 spot on the first receiving module. If the supporting structure produces when subsiding, the first gasbag of butt pole extrusion, the liquid in the first gasbag flows to the second gasbag in via venturi, and data processing module can obtain supporting structure's settlement speed through the velocity of flow of the interior liquid of analysis venturi.
In summary, the present application includes at least one of the following beneficial technical effects:
1. starting the infrared transmitter, transmitting infrared light towards the direction of the reflection assembly by the infrared transmitter, reflecting the infrared light by the reflection assembly, irradiating the reflected infrared light onto the receiving plate, and judging the inclination amplitude of the supporting structure by the data processing module by analyzing the position of an infrared light spot on the first receiving module;
2. when the supporting structure is settled, the supporting structure drives the abutting rod to move towards the direction of the first air bag, the abutting 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 settling velocity of the supporting structure by analyzing the flow velocity of the liquid in the Venturi tube;
3. when the train drives over and makes the foundation ditch vibration, the cross valve can restrict the liquid in the first gasbag and freely flow to the second gasbag via venturi tube because of rocking in, guarantee venturi tube and data processing module to the accurate monitoring of supporting construction settlement speed.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic sectional structure diagram of a mounting seat, a receiving plate, a data processing module, a butting rod, a supporting structure and a foundation pit in the embodiment of the application.
FIG. 3 is a schematic structural diagram of an infrared emitter, a receiving plate, a regulating assembly, a data processing module, a first air bag, a second air bag, a Venturi tube and a butting rod in an embodiment of the application.
Fig. 4 is a partially enlarged schematic view of a portion a in fig. 2.
Fig. 5 is a partially enlarged schematic view of a 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 present application.
Reference numerals: 1. a mounting seat; 2. an infrared emitter; 3. a reflective component; 31. a mirror; 32. a protective shell; 4. receiving a plate; 5. scale lines; 6. mounting a plate; 7. an adjustment assembly; 71. a screw; 72. a threaded barrel; 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 butting rod; 15. a cross valve; 16. a support structure; 17. and (6) foundation pit.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses neighbouring existing railway deep basal pit construction monitoring devices.
Referring to fig. 1, a monitoring device for construction of a deep foundation pit adjacent to an existing railway comprises a mounting seat 1 arranged in the foundation pit 17 and an infrared emitter 2 positioned 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 a supporting plate, and the supporting plate is stably and fixedly connected to the side wall of the foundation pit 17. The supporting structure 16 is fixedly connected with a reflection assembly 3 for reflecting infrared light emitted by the infrared emitter 2, the mounting base 1 is provided with a receiving plate 4 for receiving the infrared light reflected by the reflection assembly 3, and the infrared emitter 2 is fixedly connected to the receiving plate 4 through screws.
Referring to fig. 2 and 3, a first air bag 11 and a second air bag 12 are bonded on the mounting base 1, liquid is filled in the first air bag 11 and the second air bag 12, a venturi tube 13 is communicated between the first air bag 11 and the second air bag 12, and the venturi tube 13 is fixedly connected on the mounting base 1 through screws. The mounting base 1 is fixedly connected with a data processing module 10 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 velocity of liquid in the Venturi tube 13.
Referring to fig. 2 and 3, a butt rod 14 is fixed to the supporting structure 16 by a screw, and a butt plate is bonded to an end of the butt rod 14 away from the supporting structure 16. Liquid is injected 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 second air bag 12 flows stably, the first air bag 11 is supported by the liquid, so that the abutting plate is in contact with the first air bag 11 but does not extrude the first air bag 11.
In order to limit the liquid in the first air bag 11 from freely flowing into the second air bag 12 through the venturi tube 13 due to shaking, 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 on 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 squeezed at the moment, so that the cross valve 15 can limit the liquid in the first air bag 11 from freely flowing into the second air bag 12 through the venturi tube 13 due to shaking, and accurate monitoring of the settling speed of the support structure 16 by the venturi tube 13 and the data processing module 10 is guaranteed. When the supporting structure 16 is settled, the supporting structure 16 drives the abutting rod 14 to move towards the first air bag 11, the abutting rod 14 extrudes the first air bag 11, the first air bag 11 drives the cross valve 15 to deform, liquid in the first air bag 11 penetrates through the cross valve 15 and flows into the second air bag 12 through the venturi tube 13, and the data processing module 10 analyzes the flow velocity of the liquid in the venturi tube 13 to obtain the settling velocity of the supporting structure 16.
Referring to fig. 3, the mounting base 1 is spherically hinged with a mounting plate 6, the mounting plate 6 can be triangular, square or round, in the embodiment of the present application, the mounting plate 6 is set to be triangular, and the receiving plate 4 is vertically fixed on the mounting plate 6 by screws. Three groups of adjusting components 7 used for adjusting the size of an 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 correspond to three corners of the mounting plate 6 one by one.
Referring to fig. 3, the adjusting assembly 7 includes two screws 71 with opposite thread directions and a thread cylinder 72 threaded between the two screws 71, wherein one end of one screw 71 away from the thread cylinder 72 is vertically welded on the mounting base 1, and one end of the other screw 71 away from the thread cylinder 72 is ball-hinged on the mounting plate 6. By rotating the screw cylinder 72, the screw cylinder 72 drives the two screws 71 to move towards the direction of approaching to or departing from each other, so that the purpose of adjusting the distance between one corner of the mounting plate 6 and the mounting seat 1 is achieved, and the effect of adjusting the size of the included angle between the mounting plate 6 and the mounting seat 1 is further achieved. The size of an included angle between the mounting plate 6 and the mounting seat 1 is adjusted through the adjusting assembly 7, so that the receiving plate 4 is parallel to the supporting structure 16.
Referring to fig. 3, a first receiving module 8 is bonded on an end surface of the receiving plate 4 close to the reflection assembly 3, a length direction of the first receiving module 8 is consistent with a length direction of the receiving plate 4, second receiving modules 9 are bonded on two ends of the receiving plate 4 at the first receiving module 8, and the first receiving module 8 and the second receiving modules 9 are electrically connected with a data processing module 10.
The reflection assembly 3 reflects infrared light emitted by the infrared emitter 2 onto the receiving plate 4, when the position of an infrared light spot received on the receiving plate 4 is within the range covered by the first receiving module 8, the displacement offset of the supporting structure 16 is within an allowable offset 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 spot on the first receiving module 8; when the position of the infrared light spot received by the receiving plate 4 is outside the range covered by the first receiving module 8 and irradiates the second receiving module 9, the displacement offset of the supporting structure 16 is large, the construction risk exists, and at this time, the data processing module 10 gives an alarm, so that a constructor can respond to and maintain the supporting structure 16 in time.
Referring to fig. 3, scale marks 5 are engraved on the receiving plate 4, the scale marks 5 are located on one side, close to the reflection assembly 3, of the receiving plate 4, the scale marks 5 extend along the length direction of the receiving plate 4, and the arrangement of the scale marks 5 facilitates a constructor to quickly identify displacement offset of an infrared light spot on the receiving plate 4, so that timely response and maintenance are performed on the supporting structure 16.
Referring to fig. 5, the reflector assembly 3 includes a reflector 31 bonded to the supporting structure 16 and a transparent shield 32 covering the periphery of the reflector 31, and the shield 32 is fixed to the supporting structure 16 by screws. The protective shell 32 shields the reflector 31, and prevents the reflector 31 from being damaged and deformed as much as possible, so that the reflector 31 can stably reflect the infrared light emitted by the infrared emitter 2, and the influence of the reflector 31 on the reflection effect of the infrared light due to the deformation of the reflector 31 can be avoided as much as possible.
The implementation principle of the monitoring device for the construction of the deep foundation pit adjacent to the existing railway is as follows: install reflection module 3 on supporting construction 16, erect infrared emitter 2 in foundation ditch 17, start infrared emitter 2, speculum 31 reflects the infrared light that infrared emitter 2 sent, according to the position of infrared light spot on dash receiver 4, adjusts the contained angle size between mounting panel 6 and the mount pad 1 through adjusting part 7 for the position of the infrared light spot received on dash receiver 4 coincides with infrared emitter 2's position, and dash receiver 4 is parallel with supporting construction 16 this moment.
Liquid is injected 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 second air bag 12 flows stably, 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.
The reflection assembly 3 reflects infrared light emitted by the infrared emitter 2 onto the receiving plate 4, when the position of an infrared light spot received on the receiving plate 4 is within the range covered by the first receiving module 8, the displacement offset of the supporting structure 16 is within an allowable offset 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 spot on the first receiving module 8; when the position of the infrared light spot received by the receiving plate 4 is outside the range covered by the first receiving module 8 and irradiates the second receiving module 9, the displacement offset of the supporting structure 16 is large, the construction risk exists, and at this time, the data processing module 10 gives an alarm, so that a constructor can respond to and maintain the supporting structure 16 in time.
When the supporting structure 16 is settled, the supporting structure 16 drives the abutting rod 14 to move towards the first air bag 11, the abutting rod 14 extrudes the first air bag 11, the first air bag 11 drives the cross valve 15 to deform, liquid in the first air bag 11 penetrates through the cross valve 15 and flows into the second air bag 12 through the venturi tube 13, and the data processing module 10 analyzes the flow velocity of the liquid in the venturi tube 13 to obtain the settling velocity of the supporting structure 16.
The embodiment of the application further discloses a method for monitoring the construction of the deep foundation pit adjacent to the existing railway.
Referring to fig. 6, based on the above monitoring device for construction of the deep foundation pit adjacent to the existing railway, the monitoring method for construction of the deep foundation pit adjacent to the existing railway comprises the following steps:
s1, mounting the infrared emitter 2 and the reflection assembly 3: installing a reflector 31 and a protective shell 32 on a supporting structure 16, and erecting a receiving plate 4 and an infrared emitter 2 in a foundation pit 17 through an installation seat 1;
s2, adjusting the mounting plate 6: the infrared emitter 2 is started, the reflector 31 reflects infrared light emitted by the infrared emitter 2, and the size of an included angle between the mounting plate 6 and the mounting seat 1 is adjusted through the adjusting assembly 7 according to the position of an infrared light spot on the receiving plate 4, so that the position of the infrared light spot received on the receiving plate 4 is coincided with the position of the infrared emitter 2, and at the moment, the receiving plate 4 is parallel to the supporting structure 16;
s3, injecting liquid into the first airbag 11 and the second airbag 12: 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 stably, 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 settlement analysis of 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 amplitude of the supporting structure 16 by analyzing the position of the infrared light spot on the first receiving module 8.
The implementation principle of the method for monitoring the construction of the deep foundation pit adjacent to the existing railway is as follows: the reflection assembly 3 is installed on a supporting structure 16, the infrared emitter 2 is erected in a foundation pit 17, the receiving plate 4 is adjusted to be parallel to the supporting structure 16 through 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 plate 4, and the data processing module 10 judges the inclination amplitude of the supporting structure 16 by analyzing the position of the infrared light spot on the first receiving module 8. If the supporting structure 16 is settled, the abutting 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 analyzes the flow rate of the liquid in the venturi tube 13 to obtain the settling velocity of the supporting structure 16.
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. The utility model provides a neighbouring existing railway deep basal pit construction monitoring devices, includes mount pad (1) of setting in foundation ditch (17) and is located infrared emitter (2) on mount pad (1), its characterized in that: supporting construction (16) are gone up the rigid coupling and are used for right infrared light that infrared emitter (2) sent carries out reflection's reflection subassembly (3), it is used for right to be provided with on mount pad (1) infrared light that reflection subassembly (3) reflected carries out receiving board (4) that receive, infrared emitter (2) rigid coupling is in on receiving board (4).
2. The device for monitoring construction of the deep foundation pit adjacent to the existing railway according to claim 1, wherein: the reflection assembly (3) comprises a reflection mirror (31) fixedly connected to the supporting structure (16) and a transparent protective shell (32) covering the periphery of the reflection mirror (31).
3. The device for monitoring construction of the deep foundation pit adjacent to the existing railway according to claim 1, wherein: be provided with scale mark (5) on receiving board (4), scale mark (5) are located receiving board (4) are close to one side of reflection component (3).
4. The device for monitoring construction of the deep foundation pit adjacent to the existing railway according to claim 2, wherein: ball joint has mounting panel (6) on mount pad (1), the perpendicular rigid coupling of dash receiver (4) is in on mounting panel (6), be provided with on mount pad (1) and be used for adjusting mounting panel (6) with contained angle size's between mount pad (1) adjusting part (7).
5. The device for monitoring construction of the deep foundation pit adjacent to the existing railway according to claim 4, wherein: one side that dash receiver (4) are close to reflection component (3) is provided with first receiving module (8), dash receiver (4) in the both ends of first receiving module (8) all are provided with second receiving module (9), be provided with data processing module (10) on mount pad (1), first receiving module (8) with second receiving module (9) all with data processing module (10) electricity is connected.
6. The device for monitoring construction of the deep foundation pit adjacent to the existing railway according to claim 5, wherein: set up first gasbag (11) and second gasbag (12) on mount pad (1), first gasbag (11) with the intercommunication is provided with venturi (13) between second gasbag (12), venturi (13) with data processing module (10) electricity is connected, first gasbag (11) with all be equipped with liquid in second gasbag (12), the rigid coupling has butt-joint pole (14) on supporting construction (16), the one end that supporting construction (16) were kept away from to butt-joint pole (14) with first gasbag (11) contact.
7. The device for monitoring construction of the deep foundation pit adjacent to the existing railway according to claim 6, wherein: a cross valve (15) is arranged in the first air bag (11), and the cross valve (15) is positioned on one side, close to the second air bag (12), of the abutting rod (14).
8. A method for monitoring construction of a deep foundation pit adjacent to an existing railway is characterized by comprising the following steps: an adjacent existing railway deep foundation pit construction monitoring device based on any one of claims 6-7, the adjacent existing railway deep foundation pit construction monitoring method comprises the following steps:
s1, installing the infrared emitter (2) and the reflection component (3): installing a reflector (31) and a protective shell (32) on a supporting structure (16), and erecting a receiving plate (4) and an infrared emitter (2) in a foundation pit (17) through an installation seat (1);
s2, adjusting the mounting plate (6): the infrared emitter (2) is started, the reflector (31) reflects infrared light emitted by the infrared emitter (2), and the size of an included angle between the mounting plate (6) and the mounting seat (1) is adjusted through the adjusting assembly (7) according to the position of an infrared light spot on the receiving plate (4), so that the position of the infrared light spot received on the receiving plate (4) is overlapped with the position of the infrared emitter (2), and at the moment, 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): 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 stably, 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, support structure (16) inclination, settlement analysis: the data processing module (10) judges the sedimentation amplitude of the supporting structure (16) by analyzing the flow velocity of liquid in the Venturi tube (13); the data processing module (10) determines the inclination amplitude of the supporting 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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| CN114182767B CN114182767B (en) | 2023-04-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114705161A (en) * | 2022-06-02 | 2022-07-05 | 广州云舟智慧城市勘测设计有限公司 | Road bed settlement detection device for town road with intelligence is from transferring function |
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