Summary of the invention
The purpose of the utility model is to propose a kind of tunnel subsidence convergence detection appearance technical scheme, and this technical scheme has realized tunnel subsidence convergent fast detecting through the Combination application of laser interference distance measuring equipment and gravity sensing device.
To achieve these goals, the technical scheme of the utility model is:
A kind of tunnel subsidence convergence detection appearance; Comprise the detector main body; The detector main body is provided with a measurement mechanism by the servo motor driven rotation; Said measurement mechanism comprises a carrier, and said carrier is connected on the detector main body through turning axle, and said turning axle is connected with angular encoder; Said carrier is provided with the gravity sensing sensor that a laser interference stadimeter and have horizontal zero degree output signal, the laser beam axis that the sensitive axes of said gravity sensing sensor and said laser interference stadimeter send axial consistent; Said detector main body is provided with microprocessor measuring and controlling, temperature sensor, humidity sensor and surveyor's staff; Said surveyor's staff is axially spent the angle settings with the laser beam axis that said laser interference stadimeter sends to being 90, and the output signal of said angular encoder, laser interference stadimeter, gravity sensing sensor, temperature sensor, humidity sensor is connected to the microprocessor measuring and controlling respectively.
Said surveyor's staff is the range estimation level tube.
Said detector main body includes a U-shaped framework, is provided with handle on the limit of sealing of U-shaped framework, is provided with a conehead that is used to locate initial point in the outer end of handle.
Said microprocessor measuring and controlling includes a microprocessor; The microprocessor data mouth connects several buttons that are used to operate; The microprocessor data mouth also connects the display that is used for video data, and the output signal of said angular encoder, laser interference stadimeter, gravity sensing sensor, temperature sensor, humidity sensor is connected to the microprocessor data mouth respectively.
The utility model is compared with prior art: simple in structure, easy to operate, precision is high, good stability, can realize fast detecting; Accomplish one-time detection use other method more than one hour, need two people at least, and use this method only to need a people, only need a few minutes, time saving and energy saving, have tangible technical progress; Do not conflict in the testing process simultaneously, mix application software and can carry out the all-weather real-time monitoring, have big sedimentation, unstable sedimentation to carry out early warning the tunnel with the Other Engineering construction.
Below in conjunction with accompanying drawing and embodiment the utility model is made a detailed description.
Embodiment
Embodiment 1:
A kind of tunnel subsidence convergence detection appearance; Referring to Fig. 1, Fig. 2 and Fig. 3; Said tunnel subsidence convergence detection appearance comprises detector main body 1, and the detector main body is provided with a measurement mechanism by servo motor 2 driven in rotation, and said measurement mechanism comprises a carrier 3; Said carrier is connected on the detector main body through turning axle 4; Said turning axle is connected with angular encoder 5, and said carrier is provided with the gravity sensing sensor 7 that a laser interference stadimeter 6 and have horizontal zero degree output signal, the laser beam axis that the sensitive axes of said gravity sensing sensor and said laser interference stadimeter send axial consistent; Said detector main body is provided with microprocessor measuring and controlling 8, temperature sensor 9, humidity sensor 10 and surveyor's staff 11; Said surveyor's staff is axially spent the angle settings with the laser beam axis that said laser interference stadimeter sends to being 90; Said angular encoder, laser interference stadimeter, gravity sensing sensor, the output signal of temperature sensor, humidity sensor is connected to the microprocessor measuring and controlling respectively.Wherein said surveyor's staff is the range estimation level tube, and said servo motor is driven through driving circuit 12 by microprocessor.
Detector main body among the embodiment can conveniently be designed to multiple shape according to in-site measurement; Present embodiment is considered on-the-spot hand-held convenient; Said detector main body includes a U-shaped framework 1-1; The limit of sealing at the U-shaped framework is provided with the hand-held handle 1-2 of a convenience, and the power-supply battery of this instrument can be installed in the handle, is provided with a conehead 12 that is used to locate initial point in the outer end of handle.Utilize this conehead when measuring, can this conehead be snapped in the body of wall of tunnel one side, promptly can locate initial point, can play the effect of stable detection appearance main body again.
The measuring and controlling of microprocessor described in the embodiment includes a microprocessor 8-1; The microprocessor data mouth connects several button 8-2 that are used to operate; The microprocessor data mouth also connects the display 8-3 that is used for video data, and the output signal of said angular encoder, laser interference stadimeter, gravity sensing sensor, temperature sensor, humidity sensor is connected to the microprocessor data mouth respectively; Temperature sensor wherein and humidity sensor are the adjustments of data that is used for the laser interference stadimeter, and described laser interference stadimeter is the matured product of buying on the market.
Fig. 4 is to the signal of the image of on-the-spot tunnel convergence measurement, specifically describes as follows:
Side amount data are for the first time: the A of abutment wall place that is placed in instrument O in the tunnel; Adjustment instrument direction makes the surveyor's staff level tube bubble placed in the middle, and (<CAB) back startup measurement maybe need not be imported the angle microprocessor and directly send the measurement instruction can to set rotational angle after the start earlier; Microprocessor drives measurement mechanism through the driving circuit drives servo motor and rotates; The horizontal situation of gravity sensing sensor monitors measurement mechanism, when the measurement mechanism level, the gravity sensing sensor sends measurement mechanism at horizontal signal to microprocessor; Microprocessor activates the work of laser interference distance measuring equipment; The laser interference distance measuring equipment is measured the A point to along horizontal direction B point distance A B, and the microprocessor records data finally obtain AB distance value data and store according to the data of weather station (temperature sensor, humidity sensor) after overcorrect; Servo motor continues to drive measurement mechanism and rotates; When the angle of angular encoder output and start setting rotational angle (<when CAB) identical; Microprocessor makes servo motor stop operating after receiving this angle-data; The laser interference distance measuring equipment is measured the A point to C point distance A C, and microprocessor records AC range data finally obtains AC distance value data and stores according to the data of weather station after overcorrect.Directly send the measurement instruction mode if need not import angle in advance: the servo motor driven measurement mechanism rotates; The horizontal situation of gravity sensing sensor monitors measurement mechanism; When the measurement mechanism level; The gravity sensing sensor sends trigger pip to microprocessor, and microprocessor receives and activate the laser interference distance measuring equipment behind the signal, and the laser interference distance measuring equipment is measured the A point to along horizontal direction B point distance A B; The microprocessor records data finally obtain AB range data value and storage according to the data of weather station after overcorrect; Servo motor continues to drive measurement mechanism and rotates; The back definition top that rotates to an angle is pressed control knob more arbitrarily it is stopped operating; The laser interference distance measuring equipment is measured A point C point distance A C, and the microprocessor records data finally obtain AC distance value data according to the data of weather station and also store after overcorrect; The angular encoder output angle that measurement mechanism turned over (<CAB), microprocessor records storage range data and angle-data.
Use following formula according to these data:
Tunnel top is the height CD=AC * sinCAB of any arbitrarily;
Calculate the laser interference distance measuring equipment to any any the distance A D of intersection point point of height of tunnel top;
AD=AC×cosCAB;
The sedimentation convergence detection is: be placed on instrument on the location point of measuring for the first time, adjustment instrument direction makes level tube bubble placed in the middle, and microprocessor sends measures instruction; The servo motor driven measurement mechanism rotates; The horizontal situation of gravity sensing device monitoring measurement mechanism, when the measurement mechanism level, the gravity sensing sensor sends trigger pip to microprocessor; Microprocessor activates the laser interference distance measuring equipment; The laser interference distance measuring equipment is measured A ' and is put along horizontal direction B ' some distance A ' B ', the microprocessor records data finally obtain A ' B ' distance value data and storage according to the data of weather station after overcorrect; Calculate width convergence data and calculate the distance that A ' puts D; Servo motor continues to drive measurement mechanism and rotates; When angular encoder output angle near exported last time angle (<CAB) time; Instrument gets into the fine setting state, and the measurement mechanism slow rotation is constantly adjusted angular encoder output angle laser ranging system continuous coverage A ' according to the distance of known A ' D and put the distance that put at the top; Angular encoder is uninterruptedly exported angle value, and microprocessor records is handled these data until distance=A ' of A ' D C ' * cosC ' A ' B '.
Then C ' is the settlement point of C, calculates height C ' D=A ' C ' * sinC ' A ' B ' of this moment;
The prerequisite of The above results be two abutment wall convergency value approximately equals (actual result also be approximately equal) promptly:
AA’=BB’
Can get convergency value
AA’=(AB-A’B’)/2;
Again
A’D=AD-AA’
Therefore with the sedimentation value that measures for the second time be for the first time:
CC’=CD-C’D;
The sedimentation convergency value that three observation, four observations etc. are repeatedly observed and the like, its mathematic(al) representation is:
E=Ne-(N-1)e;
F=Nf-(N-1)f;
E represents the sedimentation convergency value,
Tunnel top was to the vertical range of instrument when Ne represented and detects for the n time,
(N-1) e the n-1 time detects the vertical range of interval scale tunnel top to instrument,
F represents the width convergency value,
Instrument was to the horizontal range of abutment wall when Nf represented and detects for the n time,
Instrument was to the horizontal range of abutment wall when (N-1) f represented the n-1 time detection.