CN106092046A - A kind of simply connected confining pressure formula settlement measurement system and measuring method thereof - Google Patents
A kind of simply connected confining pressure formula settlement measurement system and measuring method thereof Download PDFInfo
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- CN106092046A CN106092046A CN201610668721.9A CN201610668721A CN106092046A CN 106092046 A CN106092046 A CN 106092046A CN 201610668721 A CN201610668721 A CN 201610668721A CN 106092046 A CN106092046 A CN 106092046A
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- pressurized tank
- settlement
- survey point
- measuring device
- subsidence survey
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
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- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of simply connected confining pressure formula settlement measurement system and measuring method thereof, described system includes several subsidence survey points, a settlement measuring device it is provided with at described each subsidence survey point, described settlement measuring device includes one or two pressurized tank, pressurized tank is fixed on base, described base is arranged on concrete pier by standing screw, it is respectively and fixedly provided with pressure transducer in described pressurized tank, the pressurized tank in settlement measuring device between adjacent subsidence survey point is connected two-by-two by connecting pipe, and described pressurized tank top is additionally provided with filling opening；Described method step includes: buries measurement apparatus installation site, installation settlement measuring device, perfusion liquid underground, determines calculating reference value and calculate the settling amount of each subsidence survey point.Individually connecting between measuring point of the present invention, be each independent of each other, can work independently, carry out predicting sett ment by measuring pressure, measuring point all uses totally-enclosed form, has little, the reliable and stable advantage that is affected by the external environment.
Description
Technical field
The invention belongs to concrete dam settlement monitoring field in Hydraulic and Hydro-Power Engineering, be specifically related to a kind of simply connected and close
Pressure type settlement measurement system and measuring method thereof.
Background technology
In concrete dam settlement monitoring, conventional technological means mainly has: the measurement of the level, double-metal mark, vacuum swash
Light collimation, static level etc..Above-mentioned several monitoring means all has some limitations and defect, and such as the measurement of the level is to surrounding
Environmental requirement is higher, and when being observed in dam body foundation gallery, due to the reason such as light, circuit, observed result often goes out
Now being unsatisfactory for the situation of required precision, need repeated measures, thus expend substantial amounts of manpower and time, leveling observation is difficult to simultaneously
Realize automatization, do not reach the requirement of continuous reliable observation；Double-metal mark accuracy of observation is higher, but the construction cost of single measuring point
The highest, it is achieved tunneling boring arranges the most uneconomical, it is only applicable to choose indivedual point and the school survey basic point being used as settlement observation is set；
Vacuum laser collimation system not only construction cost is high, high to environmental requirement, and maintenance cost is high, and due to dam body foundation gallery more
The factors such as humidity, are unsuitable for being arranged in dam body foundation gallery, are the most often arranged in dam crest, have horizontal displacement and vertical displacement concurrently
Observation；The more above-mentioned several ways of static level has obviously advantage, and it both can be arranged in the observation dam foundation in basic gallery
Sedimentation, it is possible to being arranged in dam crest observation dam crest sedimentation, its accuracy of observation is higher simultaneously, can realize automatic observation, therefore mixed
Solidifying soil dam settlement monitoring is widely used.Static level Main Basis connecting pipe principle is made, its built-in constant buoyancy formula
Floating drum, observes pontoon position situation of change by the external CCD coordinatograph, calculates liquid level variable quantity, thus can obtain each successively
Relative shift between measuring point and Fixed Initial Point, last according to school survey basic point correction Fixed Initial Point, i.e. can get the absolute of each measuring point
Displacement.But static level in use there is also problems: uses the observation pontoon position change of the CCD coordinatograph,
And the CCD coordinatograph is under the environment such as humidity, dust, high light, the situation such as easily break down or measured value is unstable；Liquid in device
(mostly being distilled water) after a long time use, unavoidably there will be floating material, affects the mobility of water, and the water of package unit
Pipe is full-mesh pattern, the situation of blocking pipeline therefore easily occurs, it addition, floating material is attached on floating drum so that its deadweight
Change and be no longer constant buoyancy, affect accuracy of observation；Due to no longer adding liquid after static level installation, in it
Portion's total amount of liquid is constant, although each measuring point all carries out encapsulation process, but long-time after still cannot avoid evaporating, therefore need
Liquid to be regularly replaced, and the full-mesh pattern of pipeline so that change water job demand and expend the more time.As can be seen here, adopt
The later maintenance work monitored with existing static level is heavy, and the long-time stability of the CCD coordinatograph are difficult to ensure that.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of simply connected confining pressure formula settlement measurement system and survey thereof
Metering method.This system uses independent communication between each measuring point, and uses the mode of totally-enclosed pressure to be monitored measuring point sedimentation, from
And reach the reliable automatization of high-accuracy stable and monitor purpose continuously.
The present invention is achieved by the following technical programs.
A kind of simply connected confining pressure formula settlement measurement system, including several subsidence survey points, described each subsidence survey point
Place is provided with a settlement measuring device, and described settlement measuring device includes that one or two pressurized tank, described pressurized tank are fixed
On base, described base is arranged on concrete pier by standing screw, is respectively and fixedly provided with pressure transducer in described pressurized tank,
The pressurized tank in settlement measuring device between described each subsidence survey point is connected two-by-two by connecting pipe, and described each sedimentation is surveyed
The pressure transducer in pressurized tank between amount device all has a single sensor cable, described pressurized tank top to be additionally provided with
Filling opening, described filling opening controls folding by a threaded sealing-plug.
It is each filled with liquid in described pressurized tank and connecting pipe.
It is positioned at outside pressurized tank on described base and has been threaded connection protective cover.
Described it be respectively arranged on the base with the cable mouth of pipe and connect the mouth of pipe.
Described pressure transducer is high-precision pressure sensor.
Described standing screw uses expansion bolt.
Described base uses rustless steel to make.
Described protective cover uses rustless steel to make.
A kind of method using above-mentioned settlement measurement system to carry out settlement measurement, its concrete grammar step is as follows:
(1) measurement apparatus installation site is buried underground: design an apparatus in concrete dam basic gallery or dam crest groove and bury peace underground
Holding position, casting concrete pier the most successively, and make the bottom of concrete pier be connected with dam stabilization, control the injustice of concrete pier
Whole degree is within ± 0.5 °；
(2) settlement measuring device is installed: be sequentially fixed on concrete pier by each settlement measuring device with expansion bolt,
Adjust the settlement measuring device at each subsidence survey point and be in level, then with communicating pipe successively by adjacent settlement measuring device
Couple together；
(3) perfusion liquid: after step (2) settlement measuring device is installed and fixed, from the filling opening of pressurized tank successively to pressure
Power tank topping up, until liquid is when the filling opening of another pressurized tank diffuses out, stops liquid feeding and covers sealing-plug；
(4) calculating reference value is determined: use secondary meter to survey the output valve reading the pressure transducer at each subsidence survey point,
Whether inspection apparatus is in normal operating conditions, after instrument measured value is stable, surveys continuously and reads 3 measured values, calculate its meansigma methods, this
Value is calculating reference value；
(5) settling amount of each subsidence survey point is calculated: circular is: assume that first subsidence survey point is work base
Point, when second subsidence survey point occurs sedimentation, acts on hanging down on pressurized tank pressure sensor at first subsidence survey point
Straight liquid-column height does not changes, and its output valve will not change, and acts in the pressurized tank at second subsidence survey point
Vertical liquid-column height on pressure transducer becomes big, and its measured value deducts the measured value at first subsidence survey point and is second sedimentation
Settling amount at measuring point；Thus, the next subsidence survey point settling amount relative to a upper subsidence survey point can be calculated successively；And it is right
In lifting situation, its computational methods are identical with sedimentation, first specify the direction of displacement representated by result of calculation sign before calculating
?.
The beneficial effects of the present invention is:
Compared with prior art, individually connect between measuring point of the present invention, be each independent of each other, can work independently；By measuring
Pressure carrys out predicting sett ment, and measuring point all uses totally-enclosed form, has little, reliable and stable, the computational methods that are affected by the external environment
Simple advantage, and it easily is automated observation.And individually the connecting pipe of connection is the longest between measuring point, though need filling or
Change liquid, its operation the most very simple and fast；The cost of the present invention is relatively low, much smaller than conventional art means, has higher
Economic worth, can be in concrete dam settlement monitoring field wide popularization and application.
Accompanying drawing explanation
Fig. 1 is the structural representation of settlement measurement system of the present invention；
Fig. 2 is the measurement apparatus structural representation in the present invention containing a pressurized tank；
Fig. 3 is the measurement apparatus structural representation in the present invention containing two pressurized tanks.
In figure: 1-concrete pier, 2-standing screw, 3-protective cover, 4-base, the 5-cable mouth of pipe, 6-pressure transducer, 7-
Filling opening, 8-sealing-plug, 9-pressurized tank, 10-connects the mouth of pipe, 11-sensor cable, 12-connecting pipe.
Detailed description of the invention
Further describe technical scheme below in conjunction with the accompanying drawings, but claimed scope is not limited to institute
State.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of simply connected confining pressure formula settlement measurement system of the present invention, if including
Dry subsidence survey point, is provided with a settlement measuring device at described each subsidence survey point, described settlement measuring device includes one
Individual or two pressurized tanks 9, described pressurized tank 9 is fixed on base 4, and described base 4 is arranged on concrete pier by standing screw 2
On 1, in described pressurized tank 9, it is respectively and fixedly provided with pressure transducer 6, the pressure in settlement measuring device between described each subsidence survey point
Tank 9 is connected two-by-two by connecting pipe 12, and the pressure transducer 6 in pressurized tank 9 between described each settlement measuring device all has
A piece single sensor cable 11, described pressurized tank 9 top is additionally provided with filling opening 7, and described filling opening 7 is threaded by one
Sealing-plug 8 control folding.In the technical program, described subsidence survey point at least two.
It is each filled with liquid in described pressurized tank 9 and connecting pipe 12.It is not allow for bubble in operation to exist.
It is positioned at outside pressurized tank 9 on described base 1 and has been threaded connection protective cover 3.By protective cover 3 to pressurized tank 9
Protecting, protective cover 3 plays heat insulation, anticollision effect.
It is respectively arranged with the cable mouth of pipe 5 on described base 1 and connects the mouth of pipe 10.So, when mounted, sensor cable 5
May pass through the cable mouth of pipe 5 to be connected with pressure transducer 6, communicating pipe 12 connects through the connection mouth of pipe 10 with pressurized tank 9.
Described pressure transducer 6 is high-precision pressure sensor.
Described standing screw 2 uses expansion bolt.
Described base 4 uses rustless steel to make.
Described protective cover 3 uses rustless steel to make.
Simply connected confining pressure formula settlement measurement system of the present invention is used to carry out settling amount calculation as follows:
As shown in Figure 1, it is assumed that first subsidence survey point is working base point, when second subsidence survey point occurs sedimentation, make
The vertical liquid-column height on pressure transducer 6 being used at first subsidence survey point in pressurized tank 9 does not changes, its output valve
Will not change, and the vertical liquid-column height on the pressure transducer 6 acted at second subsidence survey point in pressurized tank 9 becomes
Greatly, its measured value deducts the measured value of first subsidence survey point and is the settling amount at second subsidence survey point.Thus, can calculate successively
Next subsidence survey point relative to the settling amount of a upper subsidence survey point,.And for lifting situation, the same sedimentation of computational methods,
The direction of displacement representated by result of calculation sign is first specified before calculating.Visible, use settlement measurement of the present invention
System can conveniently calculate the settling amount of each measuring point.
As described in Figure 1, the present invention, when measuring, is carried out essentially according to following steps:
(1) measurement apparatus installation site is buried underground: design an apparatus in concrete dam basic gallery or dam crest groove and bury peace underground
Holding position, first pours the concrete pier 1 of 0.5m × 0.5m × 0.5m successively, and makes the bottom of concrete pier 1 with dam stabilization even
Connect, the strict irregularity degree controlling its top surface, its irregularity degree within ± 0.5 °, concrete at each settlement measuring device
The top of pier 1 controls in same level as far as possible, its not levelness within ± 0.5 °, it is ensured that each settlement measuring device is fixed on
After on concrete pier, level and each settlement measuring device of settlement measuring device self are substantially in same level；
(2) settlement measuring device is installed: with expansion bolt, each settlement measuring device is sequentially fixed at concrete pier 1
On, adjust the settlement measuring device at each subsidence survey point and be in level, then successively adjacent sedimentation is surveyed with communicating pipe 12
Amount device couples together；First settlement measuring device of whole system only carries one to connect with last settlement measuring device
The mouth of pipe 10, remaining settlement measuring device all carries two connection mouths of pipe 10.
(3) perfusion liquid: after step (2) settlement measuring device is installed and fixed, the most right from the filling opening 7 of pressurized tank 9
Pressurized tank 9 topping up, until liquid is when the filling opening 7 of another pressurized tank 9 diffuses out, stops liquid feeding and covers sealing-plug 8；Comprehensively
Check whether each connector of whole system has leakage, the most alveolate phenomenon in communicating pipe, after otherwise needing to process again
Liquid feeding, it is necessary to assure each joint is without leakage, bubble-free in pipe；
(4) calculating reference value is determined: use secondary meter to survey the output valve reading the pressure transducer at each subsidence survey point,
Whether inspection apparatus is in normal operating conditions, after instrument measured value is stable, surveys continuously in a short time and reads 3 measured values, calculate it and put down
Average, this value is calculating reference value；
(5) settling amount of each subsidence survey point is calculated: circular is: as shown in Figure 1, it is assumed that first subsidence survey point
For working base point, when second subsidence survey point occurs sedimentation, act at first subsidence survey point pressure sensing in pressurized tank 9
Vertical liquid-column height on device 6 does not changes, and its output valve will not change, and acts at second subsidence survey point
Vertical liquid-column height on pressurized tank 9 pressure sensor 6 becomes big, and the measured value that its measured value deducts at first subsidence survey point is
Settling amount at second subsidence survey point；Thus, next subsidence survey point can be calculated successively relative to a upper subsidence survey point
Settling amount；And for lifting situation, its computational methods are identical with sedimentation, first specify representated by result of calculation sign before calculating
Direction of displacement.
Use measurement system of the present invention and measuring method, compared with prior art there is significant economic benefit,
Its economic efficiency contrast is as shown in table 1.
Table 1 technical economic benefit contrasts
Claims (9)
1. a simply connected confining pressure formula settlement measurement system, it is characterised in that: include several subsidence survey points, described each
Being provided with a settlement measuring device at subsidence survey point, described settlement measuring device includes one or two pressurized tank (9), described
Pressurized tank (9) is fixed on base (4), and described base (4) is arranged on concrete pier (1) by standing screw (2), described pressure
Pressure transducer (6) it is respectively and fixedly provided with, the pressurized tank (9) in the settlement measuring device between described each subsidence survey point in power tank (9)
Being connected two-by-two by connecting pipe (12), the pressure transducer (6) in pressurized tank (9) between described each settlement measuring device is equal
Having a single sensor cable (11), described pressurized tank (9) top is additionally provided with filling opening (7), and described filling opening (7) leads to
Cross a threaded sealing-plug (8) and control folding.
A kind of simply connected confining pressure formula settlement measurement system the most according to claim 1, it is characterised in that: described pressure
It is each filled with liquid in tank (9) and connecting pipe (12).
A kind of simply connected confining pressure formula settlement measurement system the most according to claim 1, it is characterised in that: described base
(1) it is positioned at pressurized tank (9) outside on and is threaded connection protective cover (3).
A kind of simply connected confining pressure formula settlement measurement system the most according to claim 1, it is characterised in that: described base
(1) it is respectively arranged with the cable mouth of pipe (5) on and connects the mouth of pipe (10).
A kind of simply connected confining pressure formula settlement measurement system the most according to claim 1, it is characterised in that: described pressure
Sensor (6) is high-precision pressure sensor.
A kind of simply connected confining pressure formula settlement measurement system the most according to claim 1, it is characterised in that: described fixing
Screw rod (2) uses expansion bolt.
A kind of simply connected confining pressure formula settlement measurement system the most according to claim 1, it is characterised in that: described base
(4) rustless steel is used to make.
A kind of simply connected confining pressure formula settlement measurement system the most according to claim 3, it is characterised in that: described protection
Cover (3) uses rustless steel to make.
9. using the method that settlement measurement system as described in claim 1 to 8 any one carries out settlement measurement, it is concrete
Method step is as follows:
(1) measurement apparatus installation site is buried underground: design an apparatus in concrete dam basic gallery or dam crest groove Embedment and installation position
Put, casting concrete pier (1) the most successively, and make the bottom of concrete pier (1) be connected with dam stabilization, control concrete pier (1)
Irregularity degree within ± 0.5 °；
(2) settlement measuring device is installed: be sequentially fixed on concrete pier (1) by each settlement measuring device with expansion bolt,
Adjust the settlement measuring device at each subsidence survey point and be in level, then with communicating pipe (12) successively by adjacent settlement measurement
Device couples together；
(3) perfusion liquid: after step (2) settlement measuring device is installed and fixed, the most right from the filling opening (7) of pressurized tank (9)
Pressurized tank (9) topping up, until liquid is when the filling opening (7) of another pressurized tank (9) diffuses out, stops liquid feeding and covers sealing-plug
(8)；
(4) calculating reference value is determined: use secondary meter to survey the output valve reading the pressure transducer at each subsidence survey point, check
Whether instrument is in normal operating conditions, after instrument measured value is stable, surveys continuously and reads 3 measured values, calculate its meansigma methods, and this value is i.e.
For calculating reference value；
(5) settling amount of each subsidence survey point is calculated: circular is: assume that first subsidence survey point is working base point, when
When second subsidence survey point occurs sedimentation, act on hanging down on pressurized tank (9) pressure sensor (6) at first subsidence survey point
Straight liquid-column height does not changes, and its output valve will not change, and acts on the pressurized tank (9) at second subsidence survey point
Vertical liquid-column height on pressure sensor (6) becomes big, and the measured value that its measured value deducts at first subsidence survey point is second
Settling amount at individual subsidence survey point；Thus, the sedimentation relative to a upper subsidence survey point of the next subsidence survey point can be calculated successively
Amount.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679623A (en) * | 2017-01-05 | 2017-05-17 | 中国神华能源股份有限公司 | Roadbed settlement monitoring system |
| CN106969747A (en) * | 2017-03-20 | 2017-07-21 | 西安星展测控科技股份有限公司 | Hydrostatic leveling system |
| CN107238369A (en) * | 2017-05-25 | 2017-10-10 | 北京中船信息科技有限公司 | A kind of dynamic level multi-point settlement measuring system in landslide and method |
| CN107490361A (en) * | 2017-07-28 | 2017-12-19 | 扬州大学 | A kind of oscillatory load soil under action body surface face settlement measuring device |
| CN108645377A (en) * | 2018-08-15 | 2018-10-12 | 中煤科工集团重庆研究院有限公司 | The Monitoring method of the subsidence of pipe gallery |
| CN108692703A (en) * | 2018-06-26 | 2018-10-23 | 中国矿业大学(北京) | A kind of hydrostatic level and implementation method reducing temperature error |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106679623A (en) * | 2017-01-05 | 2017-05-17 | 中国神华能源股份有限公司 | Roadbed settlement monitoring system |
| CN106969747A (en) * | 2017-03-20 | 2017-07-21 | 西安星展测控科技股份有限公司 | Hydrostatic leveling system |
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| CN107238369A (en) * | 2017-05-25 | 2017-10-10 | 北京中船信息科技有限公司 | A kind of dynamic level multi-point settlement measuring system in landslide and method |
| CN107238369B (en) * | 2017-05-25 | 2023-06-02 | 北京中船信息科技有限公司 | Mountain landslide dynamic level multipoint settlement measurement system and method |
| CN107490361A (en) * | 2017-07-28 | 2017-12-19 | 扬州大学 | A kind of oscillatory load soil under action body surface face settlement measuring device |
| CN108692703A (en) * | 2018-06-26 | 2018-10-23 | 中国矿业大学(北京) | A kind of hydrostatic level and implementation method reducing temperature error |
| CN108692703B (en) * | 2018-06-26 | 2023-07-14 | 中国矿业大学(北京) | Static level capable of reducing temperature error and implementation method |
| CN108645377A (en) * | 2018-08-15 | 2018-10-12 | 中煤科工集团重庆研究院有限公司 | The Monitoring method of the subsidence of pipe gallery |
| CN108645377B (en) * | 2018-08-15 | 2021-08-17 | 中煤科工集团重庆研究院有限公司 | Sedimentation monitoring method for comprehensive pipe gallery |
| 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 |
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|---|---|
| CN106092046B (en) | 2019-01-04 |
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