CN209605800U - A kind of automatic static level apparatus for measuring vertical displacement based on laser measurement - Google Patents
A kind of automatic static level apparatus for measuring vertical displacement based on laser measurement Download PDFInfo
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- CN209605800U CN209605800U CN201920714540.4U CN201920714540U CN209605800U CN 209605800 U CN209605800 U CN 209605800U CN 201920714540 U CN201920714540 U CN 201920714540U CN 209605800 U CN209605800 U CN 209605800U
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Abstract
The utility model relates to a kind of automatic static level apparatus for measuring vertical displacement based on laser measurement, it is characterized by: basic point pedestal (1) is arranged near tested building, measuring point pedestal (2) are respectively set on multiple buildings to be measured, it is respectively set on basic point pedestal (1) and multiple measuring point pedestals (2) and surveys cylinder (8), laser displacement sensor (9) are arranged in the top for surveying cylinder (8), liquid (13) are equipped with surveying in cylinder (8), float (14) are arranged on liquid (13) to be used as reflection laser, controller (7) are fixed on basic point pedestal (1), each survey cylinder (8) is connected by each bottom for surveying cylinder (8) with communicating pipe (6), control valve (17) are equipped in one end of communicating pipe (6) and add tap hole (16).The utility model can satisfy the requirement of vertical displacement measurement using laser level sensor and the settlement measurement system of static level technology.
Description
Technical field
The utility model belongs to field of measuring technique, can be applied to the measurement of vertical displacement, is particularly applied to build
The occasions such as the precise measurement of object vertical displacement, such as reservoir dam, high building basis, bridge, foundation pit, large-scale precision equipment basis,
Especially precision prescribed it is high, there is automation to use in the case where requirement.
Background technique
Deformation occurs under the effect of external force is inevitable for engineering structure, basis and ground, and external deformation is interior
The direct reaction of portion's stress, by deformation it will be seen that inside configuration stress condition.Deflection needs to control certain
Within the scope of, it otherwise, just will appear destruction, cause more serious consequence.In hydraulic engineering, it is often necessary to Measurement of Dam dam
The deformation of the buildings such as body, the dam foundation, sluice, ship lock, pumping plant basis, aqueduct, penstock, culvert, to understand locating for engineering
State, guarantee engineering safety operation.The displacement measurement of dam body includes that dam body horizontal displacement measurement and vertical displacement are (heavy
Drop) measurement, some dam bodys are more demanding for the observation of sedimentation, such as earth dam, concrete face rockfill dam, foundation pit, tunnel etc.
Occasion.
In water project management, the deformation for observing dam body is a particularly important job, the especially surface of dam body
Displacement.Currently, dam body vertical displacement observation means have: geometry precise leveling method, trigonometric leveling, static level
Method, satellite photogrammetry etc..First two method is based on manual measurement, although having automatic measurement machine to emerge in recent years, technically not
It is overripened.The precision of manual measurement method is limited by several factors, such as the manufacturing technology level and measurement accuracy of equipment, survey
Amount method, technical level of survey crew etc., while manual measurement can not achieve real-time measurement, it can only be in the time of particular requirement
Point carries out the measurement of finite number of time, high density measurement can not be carried out, to judge variation tendency.Under the conditions of some special weathers such as
It can not be measured under the situations such as strong wind, heavy rain, night, can not thus understand the state of dam in time.Therefore one kind is needed
The equipment that can carry out real time automatic detection.
The use of static level method has had the history of some time to stretch in recent years due to the progress of technology using mangneto
The technologies such as contracting formula, differential are applied in static leveling system.But these methods not instead of not directly measurement length, lead to
The measurement that displacement is realized in electric signal conversion is crossed, is easy by extraneous electromagnetic interference.
The shortcomings that in order to overcome the above equipment, meets the requirement of building settlement automatic real-time measurement, by experimental study,
Using laser level sensor and the settlement measurement system of static level technology, the requirement of settlement measurement can satisfy, it is automatic real-time
Laser static level apparatus for measuring vertical displacement is exactly to develop to meet the requirement.
The equipment is developed for the purpose of earth dam settlement observation, and also can be applied to other has real-time sight to sedimentation
Survey desired occasion.
Summary of the invention
The purpose of the utility model is to realize the essence of dam body vertical displacement using laser displacement sensor and static level
Really, in real time, automatic measurement, while also can be applied to other occasions for having similar vertical displacement requirement.Realize the object of the invention
It is adopted the technical scheme that: a kind of automatic static level apparatus for measuring vertical displacement based on laser measurement, including controller,
Laser displacement sensor and signal cable, displacement are measured using laser displacement sensor, and controller is based on micro computer
Signal acquisition and controller, controller controls all basic points and measuring point laser displacement sensor by program, and leads to
Cross the data that signal cable acquires each laser sensor, it is characterised in that: basement rock or undisturbed formation near tested building
Measuring point pedestal (attached drawing sets 2 measuring points for the sake of simplicity), In is respectively set in upper setting basic point pedestal on multiple buildings to be measured
Survey cylinder is respectively set on basic point pedestal and multiple measuring point pedestals, the structure for surveying cylinder is identical, in basic point pedestal and multiple measuring points
Pre-embedded bolt is respectively equipped on pedestal, the number of pre-embedded bolt is 3, is used to fixed survey cylinder, and surveying cylinder is a cylindrical container,
Bottom is equipped with cylinder fixed underpan, and cylinder fixed underpan is equipped with bolt hole, and fixed bracket is arranged in the top for surveying cylinder, passes through fixation
Laser displacement sensor is fixed on and surveys in cylinder by bracket, is equipped with liquid in cylinder surveying, float is arranged on liquid, surveys at the top of cylinder and sets
There is sealing cover, sealing cover is equipped with venthole, the venthole and atmosphere, guarantees that each atmospheric pressure surveyed in cylinder is equal；
Pre-embedded bolt passes through the bolt hole on cylinder fixed underpan, and hold-doun nut, fixed bottom are equipped on the bolt on the upside of fixed underpan
Bolt on the downside of disk is equipped with leveling nut, and adjustment leveling nut makes the tubular axis for surveying cylinder perpendicular to ground, then upper fastening
Determining nut is fixed on survey cylinder on basic point pedestal and measuring point pedestal, and controller, the knot of measuring point pedestal are fixed on basic point pedestal
Structure is identical with basic point pedestal, and the survey cylinder and fixed form on measuring point pedestal are also completely identical as basic point pedestal, is passed through with communicating pipe
Each bottom for surveying cylinder connects each survey cylinder, forms linker, in one end of communicating pipe, equipped with control valve and places liquid
Mouthful, and by adding tap hole and valve to be added in liquid 13 to cylinder, buoys float is used on liquid as reflection laser.
Basic point to reduce length of pipe, while will conjugate outside coverage, markstone should be buried near building in building
It is located in basement rock or undisturbed soil, i.e., holding basic point is motionless with respect to building.It is arranged on the building for needing to measure and surveys
Point is measured, the pedestal and building of measurement point are fixed together, conjugate with the vertical displacement of building.In basic point and measurement point
On, equipped with the survey cylinder that can fill liquid, survey the top installation laser displacement sensor of cylinder, the measurement direction of sensor vertically to
Under and cylinder be fixed together, cylinder is vertically mounted on basic point and measurement point, it is all survey cylinders bottoms be connected to by pipeline
Together, linker is formed.According to bernoulli principle, suitable lesser liquid of viscosity is injected in linker, liquid level will be same
On one horizontal plane, thus have one can horizontal plane for reference.The vertical displacement of set measuring point becomes on building
When change, basic point does not have vertical displacement, and the liquid level and basic point surveyed in cylinder on measuring point survey the liquid level in cylinder will relative to survey cylinder
It changes, but the liquid level after changing is also in same level.
Illustrate settlement calculation process by taking earth dam settlement is observed as an example: good ground sets basic point outside dam body, sets on dam body
Set many places observation point, number is respectively 0,1,2 ... 0,1,2 ... the n of subscript of n, following parameter h, d respectively indicate base
Point, measuring point 1, measuring point 2 ... measuring point n variable quantity.
If when initial installation, measuring water surface distance laser measuring point distance is h0、h1、h2……hn。
After a period of time, basic point does not settle, if observation point 1,2 ... the settling amount of n is respectively d1、
d2、……、dnIf measuring water surface distance laser measuring point distance at this moment to be respectively h0', h1', h2' ... hn'.
According to geometrical relationship, the settling amount d of first observation point1:
Settling amount d2:
N-th of observation point settling amount general formula are as follows:
--- --- --- (1)
Each observation point numerical value is measured simultaneously, carrying out calculating can be obtained any moment settling amount of any observation point.Namely:
Each measuring point and basic point measurement each time show that data compare with the data obtained are measured for the first time, and the heavy of each measuring point can be obtained
Drop amount.
The data of laser sensor measurement are transmitted to the controller being located on basic point by signal cable, and controller is by meter
Calculated result is passed into detection management center after calculation, administrative staff can observe the sedimentation value of dam body in real time.The size of float
And density does not influence measurement result, as long as swimming on liquid level.The equipment also can be applied to similar requirement
Occasion.
The utility model can satisfy sedimentation and surveyed using laser level sensor and the settlement measurement system of static level technology
The requirement of amount.
Detailed description of the invention:
Fig. 1 is the utility model structure diagram.
In figure, 1, basic point pedestal；2, measuring point pedestal；3, pre-embedded bolt；4, nut is leveled；
5, hold-doun nut；6, communicating pipe；7, controller；8, cylinder is surveyed；9, laser displacement sensor；10, venthole；11, solid
Fixed rack；12, signal cable.13, liquid level；14, float；15, cylinder fixed underpan；16, add tap hole；17, control valve；
18, sealing cover；19, bolt hole.
Specific embodiment
Reference attached drawing, a kind of automatic static level apparatus for measuring vertical displacement based on laser measurement, including controller 7,
Laser displacement sensor 9 and signal cable 12, displacement are measured using laser displacement sensor, and controller 7 is based on micro-
The signal acquisition and controller of computer, controller 7 control all basic points and measuring point laser displacement sensor by program,
And the data of each laser sensor are acquired by signal cable 12, it is characterised in that: basement rock or original near tested building
Basic point pedestal 1 is set on shape stratum, measuring point pedestal 2(attached drawing is respectively set on multiple buildings to be measured and sets 2 for the sake of simplicity
Measuring point), it is respectively set on basic point pedestal 1 and multiple measuring point pedestals 2 and surveys cylinder 8, the structure for surveying cylinder 8 is identical, in basic point base
Pre-embedded bolt 3 is respectively equipped on seat 1 and multiple measuring point pedestals 2, the number of pre-embedded bolt 3 is 3, is used to fixed survey cylinder 8, surveys cylinder
8 be a cylindrical container, and bottom is equipped with cylinder fixed underpan 15, and cylinder fixed underpan 15 is equipped with bolt hole 19, surveys cylinder 8
Fixed bracket 11 is arranged in top, is fixed on laser displacement sensor 9 by fixed bracket 11 and surveys in cylinder 8, is equipped with surveying in cylinder 8
Float 14 is arranged on liquid 13 for liquid 13, and the top for surveying cylinder 8 is equipped with sealing cover 18, and sealing cover 18 is equipped with venthole 10, this is logical
Stomata 10 and atmosphere guarantee that each atmospheric pressure surveyed in cylinder 8 is equal；Pre-embedded bolt 3 passes through on cylinder fixed underpan 15
Bolt hole 19, hold-doun nut 5 is equipped on the bolt 3 of the upside of fixed underpan 15, the bolt 3 of 15 downside of fixed underpan is equipped with
Nut 4 is leveled, adjustment leveling nut 4 makes the tubular axis for surveying cylinder 8 perpendicular to ground, and then tightening hold-doun nut 5 makes to survey cylinder 8
It is fixed on basic point pedestal 1 and measuring point pedestal 2, controller 7 is fixed on basic point pedestal 1, controller 7 is controlled using SL-T300
The structure and basic point pedestal 1 of device measuring point pedestal 2 processed are identical, the survey cylinder and fixed form on measuring point pedestal 2 also completely with basic point base
Seat 1 is identical, connects each survey cylinder 8 by each bottom for surveying cylinder 8 with communicating pipe 6, linker is formed, the one of communicating pipe 6
End is equipped with control valve 17 and adds tap hole 16, and by adding tap hole 16 and valve 17 to be added in liquid 13 to cylinder 8, floats
Son 14 is swum on liquid 13, is used as reflection laser.
When work, firstly, determine basic point and each point position according to design requirement, then bury pour basic point pedestal 1 and
Measuring point pedestal 2.Cylinder 8 will be surveyed to assemble, laser displacement sensor 9 is fixed on to the top for surveying cylinder 8 with fixed bracket 11, then
Connection signal cable 12, the signal cable 12 on all laser displacement sensors 9 is connected on controller 7, and float 14 is put
It sets and is surveying in cylinder 8, sealing cover 18 is then mounted on top, has venthole 10 to be connected to atmosphere on sealing cover.In three pre-buried spiral shells
Leveling nut 4 is loaded on bolt 3 respectively, the bolt hole 19 on cylinder fixed underpan 15 is then made to pass through pre-embedded bolt 3, by adjusting
Nut 4 keeps the axis for surveying cylinder 8 vertical, then uses 5 fixed cylinder 8 of hold-doun nut, will survey cylinder 8 and basic point pedestal 1 is fixedly connected into
One.The structure and installation method of measuring point pedestal 2 and survey cylinder are identical as basic point 1.Basic point is surveyed into cylinder with communicating pipe 6 and measuring point surveys cylinder
It is connected in bottom, forms linker.Valve 17 is equipped in one end of communicating pipe 6 and adds tap hole 16, is opened valve 17, is led to
It crosses plus liquid is added in tap hole 16, the liquid level 13 in cylinder 8 to be measured stops liquid feeding when reaching appropriate location, float 14 floats on liquid
On face 13；When liquid needs to release due to maintenance etc., i.e., openable valve 17, which releases liquid, to be repaired.
When measurement, controller 7 controls laser displacement sensor 9 by signal cable 12 and moves at the same time, and projects laser and arrives
On float 14 and it is reflected back laser displacement sensor 9, the distance that laser displacement sensor 9 arrives float 14 is measured, by measurement
Data are transmitted to controller 7 by signal cable 12, write program according to formula above (1) calculation formula, calculate the heavy of each measuring point
Drop amount, and wirelessly it is sent to water reservoir management center.
Since the displacement of each measuring point flows liquid in communicating pipe 6, make the liquid level in each survey cylinder, this needs certain
Time, but need the time shorter, test proves, be connected to bore be greater than 8mm, displacement not acutely in the case where, very in short-term
Between can reach new balance and stop flowing, this time interval meet under normal circumstances measurement the frequency requirement.
Claims (3)
1. a kind of automatic static level apparatus for measuring vertical displacement based on laser measurement, including controller (7), laser displacement pass
Sensor (9) and signal cable (12), displacement are measured using laser displacement sensor (9), and controller (7) is based on micro- electricity
The signal acquisition and controller of brain, controller (7) control all basic points and measuring point laser displacement sensor by program,
And the data of each laser sensor are acquired by signal cable (12), it is characterised in that: basement rock near tested building or
Basic point pedestal (1) is set on undisturbed formation, measuring point pedestal (2) are respectively set on multiple buildings to be measured, in basic point pedestal (1)
And be respectively set on multiple measuring point pedestals (2) and survey cylinder (8), the structure for surveying cylinder (8) is identical, in basic point pedestal (1) and multiple
It is respectively equipped with pre-embedded bolt (3) on measuring point pedestal (2), is used to fixed survey cylinder (8), surveying cylinder (8) is a cylindrical container, bottom
Equipped with cylinder fixed underpan (15), cylinder fixed underpan (15) is equipped with bolt hole (19), surveys the fixed branch of top setting of cylinder (8)
Laser displacement sensor (9) is fixed on by fixed bracket (11) and is surveyed in cylinder (8) by frame (11), and liquid is equipped in cylinder (8) surveying
(13), float (14) are set on liquid (13), pre-embedded bolt (3) passes through the bolt hole (19) on cylinder fixed underpan (15), In
Bolt (3) on the upside of fixed underpan (15) is equipped with hold-doun nut (5), and the bolt (3) on the downside of fixed underpan (15), which is equipped with, to be adjusted
Flat nut (4), adjustment leveling nut (4) make the tubular axis for surveying cylinder (8) perpendicular to ground, and then tightening hold-doun nut (5) makes
It surveys cylinder (8) to be fixed on basic point pedestal (1) and measuring point pedestal (2), controller (7), measuring point base is fixed on basic point pedestal (1)
The structure and basic point pedestal (1) of seat (2) are identical, survey cylinder and fixed form on measuring point pedestal (2) also completely with basic point pedestal (1)
It is identical, each survey cylinder (8) is connected by each bottom for surveying cylinder (8) with communicating pipe (6), linker is formed, in communicating pipe (6)
One end, be equipped with control valve (17) and plus tap hole (16), and by add tap hole (16) and valve (17) addition liquid
(13) to surveying in cylinder (8), float (14) is swum on liquid (13), is used as reflection laser.
2. the automatic static level apparatus for measuring vertical displacement described in accordance with the claim 1 based on laser measurement, feature exist
In: the number that pre-embedded bolt (3) is respectively equipped on the basic point pedestal (1) and multiple measuring point pedestals (2) is 3.
3. the automatic static level apparatus for measuring vertical displacement described in accordance with the claim 1 based on laser measurement, feature exist
In: the top for surveying cylinder (8) is equipped with sealing cover (18), and sealing cover (18) is equipped with venthole (10), the venthole (10) and atmosphere
Connection guarantees that each atmospheric pressure surveyed in cylinder (8) is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920714540.4U CN209605800U (en) | 2019-05-19 | 2019-05-19 | A kind of automatic static level apparatus for measuring vertical displacement based on laser measurement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920714540.4U CN209605800U (en) | 2019-05-19 | 2019-05-19 | A kind of automatic static level apparatus for measuring vertical displacement based on laser measurement |
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| CN209605800U true CN209605800U (en) | 2019-11-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068303A (en) * | 2019-05-19 | 2019-07-30 | 山东省水利科学研究院 | A kind of automatic static level apparatus for measuring vertical displacement based on laser measurement |
| CN112964225A (en) * | 2021-02-04 | 2021-06-15 | 上海隧道工程有限公司 | Sedimentation detection system with leveling function and leveling method thereof |
-
2019
- 2019-05-19 CN CN201920714540.4U patent/CN209605800U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068303A (en) * | 2019-05-19 | 2019-07-30 | 山东省水利科学研究院 | A kind of automatic static level apparatus for measuring vertical displacement based on laser measurement |
| CN112964225A (en) * | 2021-02-04 | 2021-06-15 | 上海隧道工程有限公司 | Sedimentation detection system with leveling function and leveling method thereof |
| CN112964225B (en) * | 2021-02-04 | 2023-09-08 | 上海隧道工程有限公司 | Sedimentation detection system with leveling function and leveling method thereof |
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