CN108088410A - Underground enclosure wall integration deformation monitoring system and monitoring method - Google Patents
Underground enclosure wall integration deformation monitoring system and monitoring method Download PDFInfo
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- CN108088410A CN108088410A CN201711428522.1A CN201711428522A CN108088410A CN 108088410 A CN108088410 A CN 108088410A CN 201711428522 A CN201711428522 A CN 201711428522A CN 108088410 A CN108088410 A CN 108088410A
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- foundation pit
- enclosure wall
- control centre
- deformation
- axle power
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 37
- 230000010354 integration Effects 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000523 sample Substances 0.000 claims abstract description 67
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims description 32
- 238000013461 design Methods 0.000 claims description 13
- 239000002828 fuel tank Substances 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 8
- 238000005273 aeration Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 241000968069 Asterolecaniidae Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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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- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses underground enclosure wall integration deformation monitoring system and monitoring methods, the system includes control centre, several foundation pit deformation Precise control devices being connected with control centre and foundation pit enclosure structure high-precision detection system, foundation pit deformation Precise control device is arranged between steel pipe support and underground enclosure wall, the foundation pit enclosure structure high-precision detection system is connected including being embedded in the inclinometer pipe in the enclosure wall of underground, the probe in inclinometer pipe and the plate reading with probe connection, plate reading in advance with control centre.The present invention can monitor the displacement deformation situation of the multiple nodes of multiple sections of underground enclosure wall in real time by foundation pit enclosure structure high-precision detection system；The axial force of the supports requirement according to needed for calculating displacement deformation situation by control centre simultaneously, can be supported axle power according to the requirement of required axle power and compensated automatically by foundation pit deformation Precise control device, realize deformation 24 to underground enclosure wall it is small when uninterruptedly detection in real time and automated closed-loop control.
Description
Technical field
The present invention relates to foundation pit construction field, more particularly to a kind of underground enclosure wall integration deformation monitoring system and monitoring
Method.
Background technology
With the fast development of urbanization process, foundation pit scale and cutting depth are continuously increased, the safety problem of deep basal pit
As the factor of engineering construction overriding concern.Because the soil body, building and embedded object around excavation of foundation pit can be to foundation pit undergrounds
The extruding such as the structure wall (abbreviation foundation pit underground enclosure wall, such as diaphram wall) of enclosure wall, cause foundation pit underground enclosure wall
Deformation, so to be detected during foundation pit construction to foundation pit underground enclosure wall, in order to work as foundation pit underground enclosure wall
The axle power bit shift compensation of support is carried out it when deforming excessive to control or reduce the displacement deformation of fender body.
Current deformation detection means mainly coordinate inclinometer manually to measure by inclinometer pipe, then the number measured
According to the deformation data that underground enclosure wall is calculated in input computer.Existing inclinometer mainly by probe, plate reading, cable and
Four part of inclinometer pipe forms, and the probe is made of two groups of guide wheels with the measurement main body for being equipped with inclinometer, and the plate reading can
The measurement data of probe is read, preserve and handle measurement data and is powered to probe.It is in use, first pre-buried on the enclosure wall of underground
Inclinometer pipe, when underground, enclosure wall deforms, entire inclinometer pipe generates corresponding deformation therewith, by manually above carrying or transferring
Probe is respectively placed in the different position of the inclinometer pipe, to measure the inclination of the inclinometer pipe different position respectively by cable
Angle, by can be calculated the horizontal displacement of every section of inclinometer pipe, the deformation that underground enclosure wall then can be obtained by described point is bent
Line.The measuring method is easy to operate, and application is wider, but due to being manual operation, it is larger there are measurement error, it is impossible to realize real-time
Measurement, can not give measurement data Real-time Feedback to underground enclosure wall perturbation movement and motor-driven integrative deformation monitoring system.In modernization
In urban construction, these shortcomings bring the security risk of deep foundation pit construction.
The content of the invention
The present invention provides a kind of underground enclosure wall integration deformation monitoring system and monitoring method, to solve the prior art
Present in measurement error it is larger, it is impossible to realize in real time measurement and Real-time Feedback to reduce the displacement deformation of fender body the problem of.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of underground enclosure wall integration deformation monitoring
System, several foundation pit deformation Precise control devices and foundation pit enclosure knot being connected including control centre, with the control centre
Structure high-precision detection system, the foundation pit deformation Precise control device is arranged between steel pipe support and underground enclosure wall, described
Foundation pit enclosure structure high-precision detection system includes being embedded in the inclinometer pipe in the enclosure wall of underground, the spy in the inclinometer pipe in advance
Head and the plate reading with the probe connection, the plate reading are connected with the control centre, the real-time measurement ground of probe
The angle of inclination of lower enclosure wall different position, and pass through plate reading and the angle of inclination data are uploaded to control centre, the control
Center processed is supported axle power according to the foundation pit deformation Precise control device of the angle of inclination data control correspondence position of reception
Automatic compensation.
Further, air bag is arranged on each probe, the inclinometer pipe is attached to after the airbag aeration expansion
On inner wall, multiple probes can be in turn connected to form probe group, the probe group wherein probe of one end and the plate reading
Connection, the inclinometer pipe are equipped with more, are set in the every inclinometer pipe there are one the probe group, each probe group and one
A plate reading corresponds to.
Further, the probe includes interconnected upper cavity and lower chamber, positioned at the upper cavity and lower chamber
Deviational survey pcb board between inside, the air bag are sheathed on respectively on the upper cavity and lower chamber, and the upper cavity is away from described
One end of lower chamber is also connected with tracheae, and the one end of the tracheae away from the upper cavity is equipped with connector, and the lower chamber is separate
The one side of the upper cavity is equipped with the connecting tube being adapted to the connector, and the deviational survey pcb board is connected with plate reading, the gas
Pressure ring is equipped on the outside of capsule, is set respectively on the outside of the upper cavity and corresponding air bag outside and the lower chamber and corresponding air bag
There is housing, be connected through a screw thread respectively between the housing and the upper cavity and lower chamber.
Further, the deviational survey pcb board includes sequentially connected deviational survey circuit, cable and plug, the plug bag
Male plug and female are included, is divided into the both sides up and down of the deviational survey circuit, the deviational survey circuit includes multiple integrated electricals member
Part, the cable include 2 power cords and 2 data lines, and the plug is quick connector.
Further, the plate reading includes data collector, the data display equipment being connected with the data collector, confession
Electric module, air valve and the supply module being connected with the air valve, the data collector and the data cable and control centre
Connection, the power supply module are connected with the power cord, and the supply module is connected with the tracheae.
Further, the foundation pit deformation Precise control device includes hydraulic cylinder, the output terminal company with the hydraulic cylinder
The mandril connect, the dust cover for being sheathed on the mandril and being fixedly connected with the hydraulic cylinder, the hydraulic cylinder is interior to be equipped with pressure
Sensor, the one end of the mandril away from the hydraulic cylinder are stretched out from the dust cover, the external part of the mandril with it is described
Locking unit is equipped between dust cover, the pressure sensor and locking unit are connected respectively with the control centre.
Further, the locking unit includes being connected with the outside screw of the mandril external part and being adjacent to dust cover
Locking gear, the drive gear engaged with the locking gear, the hydraulic motor that connects with the gear shaft and with institute
State the corresponding limit switch of joint location of locking gear and dust cover, the limit switch and the hydraulic motor and the control
Center connection processed.
Further, the outer sheath of the locking gear is equipped with end cap, the end cap, hydraulic motor and limit switch installation
In on the dust cover.
Further, the control centre includes PLC controller, alarm unit, fuel tank, is respectively arranged on the fuel tank and liquid
Sub-valve between cylinder pressure and between fuel tank and hydraulic motor, the alarm unit, sub-valve, pressure sensor and /V are opened
Pass is connected respectively with the PLC controller.
The present invention also provides a kind of monitoring method of underground enclosure wall integration deformation monitoring system as described above, including
Following steps：
S1：The foundation pit deformation Precise control device and foundation pit enclosure structure high-precision detection system are installed, make its company
It is connected to control centre；
S2：It is set by the control centre and tilts early warning lower limiting value, design requirement axle power and axle power early warning lower limiting value, given
The steel pipe support applies the axle power of design requirement；
S3：Probe in foundation pit enclosure structure high-precision detection system detects the inclination of underground enclosure wall different position in real time
Angle, the pressure sensor in foundation pit deformation Precise control device measure the axle power variation of corresponding steel pipe support in real time, and will
The angle of inclination data and axle power delta data are uploaded to control centre；
S4：The control centre monitors the angle of inclination data and axle power delta data in real time, and according to institute
State the real-time adjusted design requirement axle power of angle of inclination data and axle power early warning lower limiting value；
S5：When the axle power of the steel pipe support of some position reaches the axle power early warning lower limiting value, control centre's control pair
Hydraulic cylinder pressurization in the foundation pit deformation Precise control device answered ejects mandril, and axle power is made to be restored to the axle power of design requirement
Value, while locked the mandril with dust cover by the locking unit in foundation pit deformation Precise control device.
S6：Step S3-S5 is repeated until foundation pit construction is completed, and removes the underground enclosure wall integration deformation monitoring system
System.
Underground enclosure wall integration deformation monitoring system and monitoring method provided by the invention, compared with prior art, exist
Following advantage：
(1) the multiple sections of multiple sections of underground enclosure wall can be monitored in real time by foundation pit enclosure structure high-precision detection system
The displacement deformation situation of point；
(2) the axial force of the supports requirement according to needed for calculating displacement deformation situation by control centre；
(3) axle power can be supported according to the requirement of required axle power by foundation pit deformation Precise control device to compensate automatically；
(4) realize deformation 24 to underground enclosure wall it is small when uninterruptedly detection in real time and automated closed-loop control.
Description of the drawings
Fig. 1 is the structure diagram of underground enclosure wall integration deformation monitoring system of the present invention；
Fig. 2 is the structure diagram that the present invention pops one's head in；
Fig. 3 is the sectional view that the present invention pops one's head in；
Fig. 4 is the structure diagram of deviational survey pcb board of the present invention；
Fig. 5 is the structure diagram of plate reading of the present invention；
Fig. 6 is the structure diagram of foundation pit enclosure structure high-precision detection system of the present invention；
Fig. 7 is the structure diagram of control centre of the present invention.
Shown in figure：10th, control centre；110th, PLC controller；120th, alarm unit；140th, fuel tank；141st, fuel feed pump；
142nd, oil return pipe；150th, sub-valve；160th, total valve；170th, hydro-power pump；180th, proportional pressure control valve；
20th, foundation pit deformation Precise control device；210th, hydraulic cylinder；211st, pressure sensor；220th, mandril；230th, it is dust-proof
Cover；240th, locking unit；242nd, locking gear；242nd, drive gear；243rd, hydraulic motor；244th, limit switch；250th, end cap；
30th, foundation pit enclosure structure high-precision detection system；31st, inclinometer pipe；32nd, pop one's head in；320th, upper cavity；321st, cavity of resorption
Body；322nd, deviational survey pcb board；323rd, tracheae；324th, connector；325th, connecting tube；326th, lock washer；327th, deviational survey circuit；
328th, cable；329a, male plug；329b, female；33rd, plate reading；331st, data collector；332nd, data display equipment；
333rd, power supply module；334th, air valve；335th, module is supplied；34th, air bag；35th, pressure ring；36th, housing；37th, locating ring；38th, connect
Bolt；
40th, steel pipe support；50th, foundation pit underground enclosure wall.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
As shown in Figure 1, the present invention provides a kind of underground enclosure wall integration deformation monitoring system, including control centre 10,
Several foundation pit deformation Precise control devices 20 and foundation pit enclosure structure high-precision detection system being connected with the control centre 10
System 30, the foundation pit deformation Precise control device 20 are arranged between steel pipe support 40 and underground enclosure wall 50, and the foundation pit encloses
Protection structure high-precision detection system 30 includes being embedded in the inclinometer pipe 31 in underground enclosure wall 50 in advance, in the inclinometer pipe 31
Probe 32 and the plate reading 33 being connected with the probe 32, the plate reading 33 are connected with the control centre 10, the spy
First 32 measure the angle of inclination of 50 different position of underground enclosure wall in real time, and pass through plate reading 33 and upload the angle of inclination data
To control centre 10, axial force of the supports of the control centre 10 according to needed for the angle of inclination data of reception calculate different position
With axle power early warning lower limiting value, and the foundation pit deformation Precise control device 20 of 50 different position of underground enclosure wall is controlled according to calculating
As a result axle power is supported to compensate automatically, realize the deformation 24 to underground enclosure wall 50 it is small when uninterruptedly detect and control in real time
Closed-loop automatic control.
As shown in Fig. 2, being arranged with air bag 34 on each probe 32, it is attached to after 34 inflation of air bag described
On 31 inner wall of inclinometer pipe, multiple probes 32 can be in turn connected to form probe group, the probe 32 of the probe group wherein one end
It being connected with the plate reading 33, the inclinometer pipe 31 is equipped with more, is set in the every inclinometer pipe 31 there are one the probe group,
Each probe group is corresponding with a plate reading 33.Specifically, when in use, according to the length of inclinometer pipe 31 by several probes
32 are in turn connected to form probe group, and the probe group is placed in inclinometer pipe 31, and the probe 32 and plate reading 33 for making the top connect
It connects, is inflated by the air bag 34 into each probe 32, it is made to be attached to after expanding on the inner wall of inclinometer pipe 31, it is different at this time
Probe 32 corresponds to position different in inclinometer pipe 31, therefore can measure the tilt data of different position, and the tilt data can
To be transferred by the connector between adjacent probes 32, i.e. the measurement data of probe 32 is transferred successively from the bottom to top, final logical
The probe 32 for crossing the top passes to plate reading 33, and plate reading 33 can obtain the measurement data of all probes 32, and will obtain
Measurement data be uploaded to control centre 10 and monitored in real time, as indicated with 2, inclinometer pipe 10 has more, and every inclinometer pipe 10
It is inside all provided with there are one probe group, each probe group corresponds to a plate reading 30, and multiple plate readings 30 are connected to a control centre
10, at this time control centre 10 can monitor the tilt data of different position in more inclinometer pipes 31 simultaneously.
As Figure 2-3, the probe 32 includes interconnected upper cavity 320 and lower chamber 321, positioned at the epicoele
Deviational survey pcb board 322 between 321 inside of body 320 and lower chamber, the air bag 34 are sheathed on the upper cavity 320 under respectively
On cavity 321, the one end of the upper cavity 321 away from the lower chamber 321 is also connected with tracheae 323, and the tracheae 323 is away from institute
State upper cavity 320 one end be equipped with connector 324, one side of the lower chamber 321 away from the upper cavity 320 be equipped with it is described
The connecting tube 325 that connector 324 is adapted to, the deviational survey pcb board 322 are connected with plate reading 33, and 34 outside of air bag is equipped with pressure
Ring 35, pressure ring 35 are made of copper, good toughness, for air bag 34 to be made preferably to fit together with upper cavity 320.The epicoele
Body 320 and 34 outside of corresponding air bag and the lower chamber 321 and 34 outside of corresponding air bag are respectively equipped with housing 36, described
It is connected through a screw thread respectively between housing 36 and the upper cavity 320 and lower chamber 321, is tightened by screw thread and promote the pressure ring
35 preferably compress the gap between the air bag 34 and the upper cavity 320 or lower chamber 321, avoid gas leakage.It is specifically, more
A probe 32 forms probe group by connector 324 and the connection of connecting tube 325, connects between each other, and air bag 34 is sheathed on respectively
It on upper cavity 320 and lower chamber 321, and is interconnected between upper cavity 320, lower chamber 321 and air bag 34, for multiple spies
The probe group that first 32 connection is formed, can be realized by being inflated in the tracheae 323 into the probe 32 of the top to all probes
Air bag 34 in 32 is inflated, and in the present embodiment, connector 324 uses screw thread between attaching nut, with connecting tube 325 to connect
It connects；Air bag 34 is made of elastic rubber, and elasticity is good, solid wear-resisting and of low cost.The tracheae 323 includes rubber tube and close
Seal washer, the rubber tube, by seal washer and nut airtight connection, avoid gas leakage with the upper cavity 320.
Preferably, locating ring 37 is set between the upper cavity 320 and lower chamber 321, the locating ring 37 is equipped with
Several bolts hole, the bolt hole, which is built-in with, connects bolt 38, and the joint location of the upper cavity 320 and lower chamber 230 is also set
There is sealing ring (not marked in figure).Specifically, locating ring 37 is sleeved on to the joint location of upper cavity 320 and lower chamber 321, and
The two is fixed as one by connecting bolt 38, in order to avoid link position gas leakage, sealing is set in the joint location of the two
Circle ensures sealing effect.
Preferably, the deviational survey pcb board 322 is fixed on the upper cavity 320 and lower chamber 321 by lock washer 326
Between.As shown in Figure 4, it is preferred that the deviational survey pcb board 322 includes sequentially connected deviational survey circuit 327, cable 328 and inserts
Head, the plug include male plug 329a and female 329b, are divided into the both sides up and down of the deviational survey circuit 327, i.e. male plug
Head 329a connects the upside of deviational survey circuit 327 by cable 328, and female 329b connects deviational survey circuit by cable 328
327 downside, naturally it is also possible to the downside of to be male plug 329a connected by cable 328 deviational survey circuit 327, female 329b
The upside of deviational survey circuit 327 is connected by cable 328, in order to the connection of cable 242 after multiple 32 connection bunchiness of probe
It is transferred with information, it is necessary to illustrate, the connection method between probe 32 is, first by the deviational survey pcb board of two probes 32
Plug is mutually butted, i.e. the male plug 319a of one of them and another female 329b is attached, power cord therein
It is connected respectively with data cable, the measurement data of this two probes 32 is transferred by data cable in plug, and will wherein one
The connecting tube 324 of person and the connector 325 of another one are attached.The deviational survey circuit 327 includes multiple Integration of electrical components,
Automatic detection angle of inclination simultaneously exports signal；The cable 328 includes 4 lines, wherein 2 are power cord, for deviational survey
Circuit 327 is powered, and 2 are data cable, for the output of deviational survey information；The plug is quick connector, can quick grafting.
As shown in figure 5, the data that the plate reading 33 includes data collector 331, is connected with the data collector 331
Display 332, power supply module 333, air valve 334 and the supply module 335 being connected with the air valve 334, the data acquisition
Device 331 is connected with the data cable and control centre 10, for the data for gathering the measurement of deviational survey pcb board 322 and by the number of acquisition
According to control centre 10 is uploaded to, data display equipment 332 is used to carry out real-time display to the data that data collector 331 gathers.For
Electric module 333 is connected with power cord, and control, the supply module 335 and the tracheae 323 are powered to deviational survey circuit 327
Connection, opening air valve 334 can inflate into tracheae 323.
As shown in fig. 6, the foundation pit deformation Precise control device 20 includes hydraulic cylinder 210, with the hydraulic cylinder 210
The mandril 220 of output terminal connection, the dust cover 230 for being sheathed on the mandril 220 and being fixedly connected with the hydraulic cylinder 210,
Pressure sensor 211 is equipped in the hydraulic cylinder 210, the pressure size in hydraulic cylinder 210 is monitored in real time, so as to fulfill to steel pipe
The monitoring of 40 axle powers is supported, the pressure sensor 211 is connected with the control centre 10, the data measured are uploaded in real time
Control centre 10.The one end of the mandril 220 away from the hydraulic cylinder 210 is stretched out from the dust cover 230, the mandril
Locking unit 240, the pressure sensor 211 and locking unit 240 are equipped between 220 external part and the dust cover 230
It is connected respectively with the control centre 10.Specifically, dust cover 230 is bolted to connection with hydraulic cylinder 210, mandril 220
It is fixedly connected with the one end of the piston rod in hydraulic cylinder 210 away from piston, with the stretching/be retracted in of piston rod in hydraulic cylinder 210
Moved in a straight line in dust cover 230, so as to fulfill the Deformation control to underground enclosure wall 50, i.e., when underground enclosure wall 50 occur it is micro-
During deformation, by control centre 10 pressurization of hydraulic cylinder 210 is controlled to eject the mandril 220, axle power is made to be restored to design
It is required that axle power value, while the mandril 220 is locked with dust cover 230 by locking unit 40, without human intervention,
It is reliable and stable.
Continue referring to Fig. 6, the locking unit 240 include being connected with the outside screw of 220 external part of mandril and
The locking gear 241 that is adjacent to dust cover 230, the drive gear 242 engaged with the locking gear 241, with the sliding tooth
It takes turns hydraulic motor 243 that 242 axis connect and /V corresponding with the joint location of the locking gear 241 and dust cover 230 is opened
244 are closed, the limit switch 244 and the hydraulic motor 243 are connected with the control centre 10.Preferably, the hydraulic pressure horse
It is installed on up to 243 and the limit switch 244 on the dust cover 230.The outer sheath of the locking gear 241 is equipped with end cap
250, the end cap 250 is installed on the dust cover 230.Specifically, the outside of mandril 220 and interior point of locking gear 241
The screw thread being adapted is not set, is intermeshed between screw thread, and locking gear 241 can be rotated relative to mandril 20, drive gear 420
With the output axis connection of hydraulic motor 430.When mandril 220 ejects, locking gear 241 is driven to eject together, /V at this time is opened
It closes 244 and detects there is gap between the locking gear 241 and the dust cover 230, and the data sending of detection is extremely controlled
Center 10, the control centre 10 controls hydraulic motor 430 to act that the drive gear 242 is driven to rotate, so as to drive
State locking gear 241 makes the locking gear 241 be close to the dust cover 230 around the mandril 20 rotation, makes mandril 220 with preventing
Dust hood 230 is locked.
As shown in fig. 7, the control centre 10 includes PLC controller 110, alarm unit 120, fuel tank 140, is respectively arranged on
Sub-valve 150 between the fuel tank 140 and hydraulic cylinder 210 and between fuel tank 140 and hydraulic motor 243, the alarm are single
Member 120, sub-valve 150, pressure sensor 211 and limit switch 244 are connected respectively with the PLC controller 110.Preferably,
The sub-valve 150 is two-position four-way solenoid valve, and total valve is additionally provided between the fuel tank 140 and the two-position four-way solenoid valve
160, the total valve 160 is three-position four-way electromagnetic directional valve, and is connected with the PLC controller 110.Preferably, the oil
Case 140 is equipped with fuel feed pump 121 and oil return pipe 122, and the fuel feed pump 121 is equipped with hydro-power pump 170, the oil return pipe
122 are equipped with proportional pressure control valve 180, and the proportional pressure control valve 180 is connected with PLC controller 110.The PLC controller 110 with
The data collector 331 connects, and axis is required according to the tilt data adjusted design of 50 different position of underground enclosure wall of acquisition
Power and axle power early warning lower limiting value, while monitor the tilt data situation of change of 50 each position of underground enclosure wall, when some position
Tilt data exceed default early warning value when, pass through alarm unit 120 carry out alarm；In addition PLC controller 110 can root
The deformation data of each position is calculated according to tilt data variation and draws deformation curve.Preferably, hydraulic cylinder 210 and hydraulic motor
It is respectively equipped on 243 into and out of oil circuit, sub-valve 150 is arranged on described into and out of on oil circuit, and total valve 160 is arranged on the confession of fuel tank 140
On oil pipe 141 and oil return pipe 142, two two-position four-way solenoid valves and a 3-position 4-way electromagnetism are changed by PLC controller 110
Control to valve, can realize hydraulic cylinder 210 and hydraulic motor 243 into and out of oil circuit break-make and break-make the priority time between
Every so as to control the rotation of locking gear 241.Proportional pressure control valve 180 is the proportional pressure control valve with feedback, according to the pressure of load
Feedback, setup parameter, so as to ensure that the pressure of system is constant.
The present invention also provides a kind of monitoring method of underground enclosure wall integration deformation monitoring system as described above, including
Following steps：
S1：The foundation pit deformation Precise control device 20 and foundation pit enclosure structure high-precision detection system 30 are installed, made
It is connected to control centre 10；As shown in Figure 1, foundation pit deformation Precise control device 20 be equipped with it is multiple, be each respectively arranged on
Between steel pipe support 40 and underground enclosure wall 50, the axle power delta data of corresponding steel pipe support 50 is measured respectively, when the axle power is low
It is compensated when axle power early warning lower limiting value.Multiple inclinometer pipes 31 are equipped in foundation pit enclosure structure high-precision detection system 30, it is more
A tipping tube 31 is embedded in the different position in underground enclosure wall 50, is set in each inclinometer pipe 31 there are one probe group, probe group
The quantity of interior probe 32 is set according to the length of inclinometer pipe 31, and the angle of inclination of measurable different position, each probe group corresponds to
One plate reading 33 gathers the data measured in corresponding probe group.
S2：It is set by the control centre 10 and tilts early warning lower limiting value, design requirement axle power and axle power early warning lower limiting value,
Apply the axle power of design requirement to the steel pipe support 40；
S3：Probe in foundation pit enclosure structure high-precision detection system 30 detects 50 different position of underground enclosure wall in real time
Angle of inclination, the axis of the corresponding steel pipe support 40 of the measurement in real time of pressure sensor 211 in foundation pit deformation Precise control device 20
Power changes, and the angle of inclination data and axle power delta data are uploaded to control centre 10；
S4：The control centre 10 monitors the angle of inclination data and axle power delta data in real time, and according to
The real-time adjusted design of angle of inclination data requires axle power and axle power early warning lower limiting value；
S5：When the axle power of the steel pipe support 40 of some position reaches the axle power early warning lower limiting value, control centre 10 is controlled
Making the pressurization of the hydraulic cylinder 210 in corresponding foundation pit deformation Precise control device 20 ejects mandril 220, is restored to axle power and sets
Count requirement axle power value, while by the locking unit 240 in foundation pit deformation Precise control device 20 by the mandril 220 with
Dust cover 230 is locked.Specifically, when the mandril 220 ejects, locking gear 241 follows the mandril 220 to eject,
The limit switch 244 detects there is gap, the PLC controller between the locking gear 241 and the dust cover 230
110 control hydraulic motors 243 act that the drive gear 242 is driven to rotate, so as to drive the locking gear 241 around described
The rotation of mandril 220 makes the locking gear 241 be close to the dust cover 230, and mandril 220 is made to be locked with dust cover 230.Work as axle power
When reaching the axle power early warning lower limiting value, the control of PLC controller 110 and 210 corresponding two-position four-way solenoid valve of hydraulic cylinder and three
Position four-way electromagnetic reversing valve is opened, and pressurization of refueling into hydraulic cylinder 210 ejects the mandril 220, at this time locking gear 241
Mandril 220 is followed to eject together, while limit switch 244 is detected between locking gear 241 and dust cover 230 gap, this
When PLC controller 110 control with 210 corresponding two-position four-way solenoid valve of hydraulic cylinder open, to hydraulic motor 243 refuel pressurization,
Make the output terminal of hydraulic motor 243 that the drive gear 242 be driven to rotate.The oil return pipe 142 of fuel tank 140 is equipped with feedback
Proportional pressure control valve 180, can be according to the pressure feedback of load, setup parameter, so as to ensure that the pressure of system is constant.
S6：Step S3-S5 is repeated until foundation pit construction is completed, and removes the underground enclosure wall integration deformation monitoring system
System.
In conclusion enclosure wall integration deformation monitoring system in underground provided by the invention and monitoring method, compared to existing
Technology, there are following advantages：
(1) the multiple sections that can monitor underground enclosure wall 50 in real time by foundation pit enclosure structure high-precision detection system 30 are more
The displacement deformation situation of a node；
(2) the axial force of the supports requirement according to needed for calculating displacement deformation situation by control centre 10；
(3) axle power can be supported according to the requirement of required axle power by foundation pit deformation Precise control device 20 to mend automatically
It repays；
(4) realize the deformation 24 to underground enclosure wall 50 it is small when uninterruptedly in real time detection and automated closed-loop automatically control.
Although embodiments of the present invention are illustrated in specification, these embodiments are intended only as prompting,
It should not limit protection scope of the present invention.It is equal that various omission, substitution, and alteration are carried out without departing from the spirit and scope of the present invention
It should include within the scope of the present invention.
Claims (10)
1. a kind of underground enclosure wall integration deformation monitoring system, which is characterized in that including control centre and the control centre
Several foundation pit deformation Precise control devices and foundation pit enclosure structure high-precision detection system, the foundation pit deformation of connection are fine
Change control device to be arranged between steel pipe support and underground enclosure wall, the foundation pit enclosure structure high-precision detection system includes pre-buried
It is described in the inclinometer pipe in the enclosure wall of underground, the probe in the inclinometer pipe and the plate reading with the probe connection
Plate reading is connected with the control centre, and the probe measures the angle of inclination of underground enclosure wall different position in real time, and passes through
The angle of inclination data are uploaded to control centre by plate reading, and the control centre is according to the angle of inclination data control pair of reception
The foundation pit deformation Precise control device of position is answered to be supported axle power to compensate automatically.
2. underground enclosure wall integration deformation monitoring system according to claim 1, which is characterized in that each probe
On be arranged with air bag, be attached to after the airbag aeration expansion on the deviational survey inside pipe wall, multiple probes can be sequentially connected
Probe group is formed, the probe group wherein probe of one end is connected with the plate reading, and the inclinometer pipe is equipped with more, every institute
It states and is set in inclinometer pipe there are one the probe group, each probe group is corresponding with a plate reading.
3. underground enclosure wall integration deformation monitoring system according to claim 2, which is characterized in that the probe includes
Interconnected upper cavity and lower chamber, the deviational survey pcb board between the upper cavity and lower chamber inside, the air bag point
It is not sheathed on the upper cavity and lower chamber, the one end of the upper cavity away from the lower chamber is also connected with tracheae, the gas
The one end of pipe away from the upper cavity is equipped with connector, and one side of the lower chamber away from the upper cavity is equipped with and the connection
The connecting tube of head adaptation, the deviational survey pcb board be connected with plate reading, and the air bag outside is equipped with pressure ring, the upper cavity and right
Be respectively equipped with housing on the outside of the air bag answered and on the outside of the lower chamber and corresponding air bag, the housing and the upper cavity and
It is connected through a screw thread respectively between lower chamber.
4. underground enclosure wall integration deformation monitoring system according to claim 3, which is characterized in that the deviational survey PCB
Plate includes sequentially connected deviational survey circuit, cable and plug, and the plug includes male plug and female, is divided into the survey
The both sides up and down of oblique circuit, the deviational survey circuit include multiple Integration of electrical components, and the cable includes 2 power cords and 2
Data lines, the plug are quick connector.
5. underground enclosure wall integration deformation monitoring system according to claim 4, which is characterized in that the plate reading bag
It includes data collector, the data display equipment being connected with the data collector, power supply module, air valve and is connected with the air valve
Supply module, the data collector is connected with the data cable and control centre, the power supply module and the power cord
Connection, the supply module are connected with the tracheae.
6. underground enclosure wall integration deformation monitoring system according to claim 1, which is characterized in that the foundation pit deformation
Precise control device include hydraulic cylinder, be connected with the output terminal of the hydraulic cylinder mandril, be sheathed on the mandril and with
The dust cover that the hydraulic cylinder is fixedly connected, the hydraulic cylinder is interior to be equipped with pressure sensor, and the mandril is away from the hydraulic cylinder
One end stretched out from the dust cover, between the external part of the mandril and the dust cover be equipped with locking unit, the pressure
Force snesor and locking unit are connected respectively with the control centre.
7. underground enclosure wall integration deformation monitoring system according to claim 6, which is characterized in that the locking unit
Including be connected with the outside screw of the mandril external part and be adjacent to dust cover locking gear, engage with the locking gear
Drive gear, the hydraulic motor that connects with the gear shaft and the joint location pair with the locking gear and dust cover
The limit switch answered, the limit switch are connected with the hydraulic motor with the control centre.
8. underground enclosure wall integration deformation monitoring system according to claim 7, which is characterized in that the locking gear
Outer sheath be equipped with end cap, the end cap, hydraulic motor and limit switch are installed on the dust cover.
9. underground enclosure wall integration deformation monitoring system according to claim 1, which is characterized in that the control centre
Including PLC controller, alarm unit, fuel tank, be respectively arranged between the fuel tank and hydraulic cylinder and fuel tank and hydraulic motor it
Between sub-valve, the alarm unit, sub-valve, pressure sensor and limit switch are connected respectively with the PLC controller.
10. a kind of monitoring method of such as claim 1~9 any one of them underground enclosure wall integration deformation monitoring system,
It is characterised in that it includes following steps：
S1：The foundation pit deformation Precise control device and foundation pit enclosure structure high-precision detection system are installed, are coupled to
Control centre；
S2：It is set by the control centre and tilts early warning lower limiting value, design requirement axle power and axle power early warning lower limiting value, to described
Steel pipe support applies the axle power of design requirement；
S3：Probe in foundation pit enclosure structure high-precision detection system detects the inclination angle of underground enclosure wall different position in real time
Degree, the pressure sensor in foundation pit deformation Precise control device measure the axle power variation of corresponding steel pipe support in real time, and by institute
It states angle of inclination data and axle power delta data is uploaded to control centre；
S4：The control centre monitors the angle of inclination data and axle power delta data in real time, and is inclined according to described
The real-time adjusted design requirement axle power of oblique angle degrees of data and axle power early warning lower limiting value；
S5：When the axle power of the steel pipe support of some position reaches the axle power early warning lower limiting value, control centre's control is corresponding
Hydraulic cylinder pressurization in foundation pit deformation Precise control device ejects mandril, and axle power is made to be restored to the axle power value of design requirement,
The mandril is locked with dust cover by the locking unit in foundation pit deformation Precise control device simultaneously.
S6：Step S3-S5 is repeated until foundation pit construction is completed, and removes the underground enclosure wall integration deformation monitoring system.
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| CN201711428522.1A CN108088410A (en) | 2017-12-26 | 2017-12-26 | Underground enclosure wall integration deformation monitoring system and monitoring method |
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| CN111501860A (en) * | 2020-04-23 | 2020-08-07 | 腾达建设集团股份有限公司 | Foundation pit enclosure deformation control device and system |
| CN111549836A (en) * | 2020-05-28 | 2020-08-18 | 浙江明思特建筑支护技术有限公司 | Foundation pit deformation monitoring system |
| CN111910647A (en) * | 2020-08-20 | 2020-11-10 | 同济大学 | Opposite-pulling type foundation pit supporting device |
| CN114838700A (en) * | 2022-04-25 | 2022-08-02 | 上海建工四建集团有限公司 | Formwork system deformation monitoring and regulating method for concrete wall construction |
| CN114908769A (en) * | 2022-05-23 | 2022-08-16 | 上海建工一建集团有限公司 | Construction method for actively regulating and controlling concrete support servo axial force of foundation pit |
| CN116007522A (en) * | 2023-01-10 | 2023-04-25 | 安徽省亳州煤业有限公司 | Mine channel deformation monitoring equipment and monitoring method |
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| CN114908769A (en) * | 2022-05-23 | 2022-08-16 | 上海建工一建集团有限公司 | Construction method for actively regulating and controlling concrete support servo axial force of foundation pit |
| CN114908769B (en) * | 2022-05-23 | 2024-02-06 | 上海建工一建集团有限公司 | Construction method for actively regulating foundation pit by servo axial force of concrete support |
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