CN105091951A - Deformation monitoring and state early-warning method for hydraulic structure of sluice station - Google Patents
Deformation monitoring and state early-warning method for hydraulic structure of sluice station Download PDFInfo
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Abstract
The invention discloses a deformation monitoring and state early-warning method for a hydraulic structure of a sluice station, thereby determining operation state of the hydraulic structure, performing real-time early warning on unsafe states and ensuring safe operation of water conservancy project. The method particularly comprises the steps of a step of selecting an engineering monitoring point; a step of acquiring monitoring information; a step of analyzing and comparing monitoring information; a step of processing an analysis result; and a step of performing state early-warning. The deformation monitoring and state early-warning method can realize functions such as issuing monitoring information and data analysis result and engineering state early-warning; real-time analysis is performed on the safety of a sluice and a pump station building so that personnel masters the deformation amount of the building in time and analyzes the change trend; furthermore a suggestion is brought forward for engineering management, engineering inspection and engineering maintenance, thereby ensuring safe operation of engineering equipment; and furthermore the personnel monitors the engineering state of the sluice station by means of terminal equipment, thereby facilitating management operation for the sluice station and improving operation efficiency.
Description
Technical field
The present invention relates to a kind of building deformation monitoring method, especially a kind of sluice, pumping plant or lock station of being applied to combines water conservancy structure deformation monitoring, the variation tendency method for early warning arranged.
Background technology
Hydraulic engineering is the important foundation of Chinese national economy and social development, controlling flood, drains flooded fields, takes precautions against natural calamities, played huge effect to the development of national economy in mitigation etc.Because the external factor such as geology, the change of upstream and downstream river water level, temperature produce certain influence to water conservancy structure distortion, thus impact is brought on the safe operation of engineering and equipment, even cause damage.To be correlated with Regulations requirement according to hydraulic engineering, under normal conditions, surveying instrument is used to carry out the observations such as artificial perpendicular displacement, osmotic pressure, expansion joint to pumping plant and water gate engineering, cycle is longer and easily bring accidental error due to instrument and manually-operated reason, reliably can not grasp the deformation of hydraulic structure in time, once there is geologic hazard and the special water level combination of upstream and downstream or extreme weather very likely bring hidden danger to the safe operation of equipment and engineering.Implement lock station hydraulic structure deformation auto-monitoring dynamic and grasp hydraulic structure deformation, meet the actual needs of sluice gate station safe operation and realize modernization of water resources, informationalized demand.
Mainly there is the following aspects problem in current hydraulic structure deformation monitoring method:
One, hydraulic structure deformation monitoring automaticity is not high.General artificial observation is surveyed secondary very few, and the probability that there is accidental error is comparatively large, can not promptly and accurately grasp building deformation amount.
Two, fail in time building deformation Monitoring Result to be used for judging engineering state in water project management, engineering management, engineering supervision and maintenance of works maintenance are advised.
Three, common hydraulic structure automatic monitoring method can not carry out intelligent early-warning to building deformation trend, thus may cause accident or failure propagation.Base plate non-uniform settling as pumping plant buildings may cause pumping plant unit fault; The base plate non-uniform settling of Construction of Sluice thing can cause lock chamber to tilt; The base-plate breaking of buildings may be caused when being out of shape serious thus have an accident; The seepage deformation of sluice foundation and the two sides soil body can bring adverse effect to the stability of sluice, pumping plant and intensity, and two kinds of destructions all not easily intuitively find.
Four, common hydraulic structure is automatically monitored and can not automatically be improved the measurement frequency according to actual needs.
By the retrieval to existing patented technology document, publication No. is " CN104501773A ", name is called that the application for a patent for invention of " a kind of hydraulic structure vertical deformation monitoring device and method " is maximally related patent documentation, which provide a kind of deformation monitoring device and method of hydraulic structure, deformation monitoring device all component is convenient to dismounting, utilize the flexible lifting of sensing drill bit and controlled the contraction of drill bit by controller, adding effect that device can be used repeatedly.This patent documentation still adopts the mode of manual measurement to detect hydraulic structure, does not relate to intellectual monitoring and the state trend early warning problem of hydraulic structure.
Summary of the invention
The present invention seeks to based on lock station hydraulic structure deformation auto-monitoring achievement, a kind of lock station hydraulic structure deformation monitoring and status early warning method are provided, to judge the running status of hydraulic structure, and real-time early warning is carried out to unsafe condition, guarantee that engineering safety runs.
The inventive method specifically comprises the steps.
The step of selected engineering monitoring point.
Gather the step of monitoring information; Monitoring instrument is arranged, building deformation information monitoring instrument collected and monitor server is sent to the influential relevant information of building deformation information at selected engineering monitoring point; Monitoring instrument comprises the sensing apparatus such as hydrostatic level, osmometer, crack gauge, water-level gauge; Building deformation information comprises perpendicular displacement, piezometric tube middle water level and water temperature (osmotic pressure measurement), expansion joint width, fracture width etc.; Upstream and downstream river water level is comprised to the influential relevant information of building deformation information, weather temperature, pumping plant start number of units, pumping plant flow, sluice open a sluice gate hole count, gate opening, lock flow etc.
The step of analyses and comparison monitoring information; The hydraulic structure deformation information collected is carried out storage and intellectual analysis process by monitor server, by deformation data and the same period historical data compare, and adopt trend analysis method analysis to obtain building deformation Trend value in conjunction with external factor, this building deformation Trend value and the warning value preset are contrasted, judges engineering state and send information to engineering operation monitor and managment platform.
The step of Treatment Analysis result; If engineering state is judged as dangerous or occupy critical value, incorporation engineering application is opened the reason that the analysis building deformations such as number of units, motor vibration situation, sluice water flow and gate opening transfinite as water pump, automatically increase the frequency that monitoring information gathers simultaneously, and issue engineering state information and information warning according to the time interval of presetting to designated person.
The step of status early warning: engineering operation monitor and managment platform issues early warning, warning message to terminal device, until managerial personnel remove warning by note system or wireless network automatically to engineering state information; Engineering operation monitor and managment platform can realize on-line monitoring, warning, report making, data management, remote service, realizes inquiry and intelligent early-warning function by terminal device.
Further, in the step of status early warning, when issuing early warning, warning message, show total looks of buildings and monitoring system and/or each monitoring section structure outline and/or instrument distribution on the terminal device, and/or carry out graphic choosing and to survey and conditional curve shows, and/or alert locations and engineering state information displaying.
Further, in the step of analyses and comparison monitoring information, warning value is preset as:
Perpendicular displacement change limit value: interval displacement limit value is ± 5mm, and accumulative displacement amount limit value is ± 150mm, and same base plate non-uniform settling amount limit value is 50mm;
Piezometric tube pipe middle water level change limit value: the sluice of non-tidewater section and pumping plant, water levels of upstream and downstream change is less, and piezometric tube pipe middle water level change limit value is set as 10% of annual water level variable; The sluice of tidal reach and pumping plant, piezometric tube pipe middle water level change limit value needs according to comprehensively determining with time value and annual water level elevation variable quantity in the past;
Buildings expansion joint width or limit of crack opening with concrete meet temperature expand with heat and contract with cold be changed to normal, otherwise be exception.
Further, gather in the step of monitoring information, adopt center control to carry out to the collection of monitoring information, namely patrolled by all measure-controlling units of monitoring host computer order simultaneously and survey or specify separate unit single-point to carry out choosing survey, measure complete by data stored in Monitoring Data acquisition server; Or adopt automatic control mode to carry out, namely automatically undertaken patrolling survey, storing by setting-up time by each measure-controlling unit, and surveyed data are sent to monitoring host computer preservation, backup.
Further, in the step of analyses and comparison monitoring information, the comparison of building deformation information contrasts with its account of the history, if there is sudden change to carry out repetition measurement identical or close in temperature, the combination of upstream and downstream river water level; In addition, for piezometric tube, if when water level is identical or close in the piezometric tube pipe on same chunk base plate, also should repetition measurement be carried out.
Further, in the step of analyses and comparison monitoring information, the prediction mode of building deformation trend is: for perpendicular displacement, counting period displacement, accumulative displacement amount, draw displacement graph, estimate displacement variation tendency in conjunction with upstream and downstream river water level variation tendency; For osmotic pressure, according to piezometric level, water temperature and upstream and downstream river water level, contrast historical data, judges ground seepage pressure variation tendency; For expansion joint or crack, estimate expansion joint/fracture width variation tendency according to temperature and upstream and downstream river water level variation tendency.
By adopting technique scheme, the present invention can obtain following technique effect: can realize the function such as the issue of hydraulic structure monitoring information and data results, engineering state early warning, real-time analysis is carried out to the security of sluice, pumping plant buildings, make staff grasp hydraulic structure deflection in time and analyze its variation tendency, and engineering management, engineering supervision and maintenance of works maintenance are advised, thus ensure engineering equipment safe operation; There is the function utilizing note system or wireless network automatically to send early warning, warning message, managerial personnel receive warning message be confirmed after system stop paying out information, otherwise separated in time is continued to retransmit, thus ensure that the effect of early warning; Can realize inquiring about the monitoring of lock station waterwork composition deformation at the mobile terminal such as mobile phone, Portable notebook, thus facilitate the monitoring of staff to lock station; Realize automatic infill monitoring when measured value transfinites or measured value rate of change transfinites, ensure monitored density, make the safety monitoring work of sluice gate station more have safety guarantee.
Accompanying drawing explanation
Fig. 1 is the monitoring that adopts of the inventive method and management system composition structural representation.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
The safety monitoring of the present invention's application and management system composition structure as shown in Figure 1, comprise surveying instrument, collection in worksite case, safety monitoring system, database, analysis processor, engineering operation monitor and managment platform; First selected engineering monitoring point:
Perpendicular displacement monitoring punctuate is arranged: according to the requirement of country about Hydraulic Engineering Survey specification, and the parting that sluice, pump station engineering press the polycrystalline substance (base plate etc.) of buildings lays punctuate.The perpendicular displacement monitoring punctuate of general sluice is embedded in the two ends of the gate pier head of every shoe brake base plate corner, empty van bank (wing) wall corner, gravity type or buttress type bank (wing) wall, retaining wall, and inverted arch bottom plate is embedded in the upstream and downstream end of each gate pier; The perpendicular displacement punctuate of pumping plant according to the size of base plate, should bury plural punctuate underground in side, upstream and downstream respectively, and the pumping plant that base plate is larger suitably should set up punctuate in portion in the soleplate.The punctuate of pumping plant aileron, retaining wall is laid identical with sluice.Select to lay four perpendicular displacement monitoring punctuates in sluice, pumping plant buildings monolithic base plate corner, suitably should set up measuring point in portion in the soleplate when base plate is larger, and working base point is set at rational position.
The piezometric tube of osmotic pressure monitoring is arranged: the quantity of sluice, pumping plant porous flow pattern measuring point and position, should determine according to factors such as the version of sluice, pumping plant, underground outline shape and basic geology situations, and with the distribution and variation measuring basic uplift pressure for principle, generally be arranged in the representational turning point of underground outline, in the middle of buildings base plate, a measuring point should be set.The measuring point of right quantity should be buried along the quaywall of buildings and engineering upstream and downstream aileron underground, should encrypt for piezometric tube after the engineering wall that soil property is poor.Generally every engineering measuring frequency section is no less than 2 groups, often organizes measuring point on section and should not be less than 3.Lay piezometric tube according to factors such as the version of sluice, pumping plant, underground outline switch and basic geology situations, general every block buildings base plate arranges 3, buries the piezometric tube of right quantity after the quaywall and aileron of buildings underground.
Expansion joint monitoring punctuate is arranged: buildings expansion joint should be arranged on top of building, the side that meets water of water retaining structure, span (or height) is comparatively large or stress is more complicated structure expansion joint.Generally be arranged on top of building, the side that meets water of water retaining structure, span (highly) are comparatively large or stress is more complicated structure expansion joint;
Crack Monitoring punctuate is arranged: for the crack that may affect structural safety, should select representational, arrange fixed observer punctuate.The gap observation punctuate of sluice, pumping plant or mark according to the trend in crack and length, should be laid in the widest part in crack and the end in crack respectively.Monitoring punctuate is laid in the crack that general selection may affect structural safety.
Points for attention during in-site installation:
1. each perpendicular displacement monitoring punctuate and the hydrostatic level at working base point place install that the discrepancy in elevation is generally no more than instrument range 10%, as arranged multiple basic point when can not reach, and contact level observes class requirement;
2. piezometric tube bore is preferably 5cm, carries out artificial data of checking monitoring automatically when being convenient to automatic monitor in not take-off pipe;
3. upstream and downstream river water level meter should be arranged on water level not by the region that knife switch affects;
4. expansion joint monitoring needs to arrange the punctuate in horizontal and vertical both direction, and crack only arranges punctuate transversely.
Gather monitoring information:
The measuring equipment such as hydrostatic level, osmometer, crack gauge, water-level gauge meeting accuracy requirement is installed at the scene, carries out data acquisition:
A, data acquisition modes: reconnaissance measurement, tour inspection, timing detect, and can read in the enterprising pedestrian's work survey of measure-controlling unit;
B, Survey control mode: application answer formula and self-reporting type's two kinds of modes gather various kinds of sensors data, and to its warning value of every sensor setting, when measured value exceedes warning value, system should be able to carry out automatic alarm;
1. center-control (response formula) mode: patrolled by all measure-controlling units of monitoring host computer order simultaneously and survey or specify separate unit single-point to carry out choosing survey, measure complete by data stored in Monitoring Data acquisition server;
2. automatically (self-reporting type) mode is controlled: automatically undertaken patrolling survey, storing by setting-up time by each measure-controlling unit, and surveyed data are delivered to monitoring host computer backup preservation;
3. manual measurement mode: every platform measure-controlling unit should possess the interface function of manual measurement.
Setting about safe range and warning value:
Perpendicular displacement aspect, according to the related request of engineering location hydrogeological condition and design document, draft warning value in conjunction with history observation data, general perpendicular displacement interval displacement limit value is ± 5mm, accumulative displacement amount limit value is ± 150mm, and same base plate non-uniform settling amount limit value is 50mm;
Osmotic pressure aspect, the piezometric level contrast historical data of actual measurement under the combination of identical or close upstream and downstream river water level, should carry out repetition measurement if any when water level is substantially identical in piezometric tube on sudden change or same base plate;
Expansion joint/aspect, crack, the seam of surveying at the combination of identical or close upstream and downstream river water level, temperature is wide to be compared with historical data, if any sudden change, should carry out repetition measurement.
Analyze contrastive detection information:
Field monitoring data are sent to safety monitoring system, and arrangement computational analysis is carried out to Monitoring Data, judge engineering state.Obtain being stored in the total data automatically measured in collecting unit in software, Monitoring Data validity is checked, guaranteeing that Monitoring Data processes after authentic and valid by data, the external factor such as achievement value incorporation engineering application, upstream and downstream river water level are compared with Security alert scope with historical values, judge engineering state, send information to project monitor and control and management platform.
1. to vertical offset data counting period displacement, accumulative displacement amount, drafting displacement graph, displacement variation tendency is estimated in conjunction with water levels of upstream and downstream variation tendency.
2. monitor piezometric level, water temperature, contrast upstream and downstream water level and historical data, judge ground seepage pressure.
3. expansion joint or fracture width should conform to water table trend with temperature.
4. when upstream and downstream river water level combines super design standards or when exceeding historic high, automatic infill monitoring (namely increasing Monitoring frequency) also issues early warning information, remind and carry out engineering supervision.
Treatment Analysis result and status early warning:
If namely measurement result no to scale scope or the Security alert scope arranged in advance provide prompting or warning at platform interface, and information is sent to managerial personnel's mobile phone, so that carry out checking or artificial repetition measurement.As confirmed, engineering state is dangerous, and managerial personnel issue shutdown or barrier gate instruction, check, report relevant departments after finding out reason to engineering, log in project monitor and control and management platform is sounded all clear by designated person.
In the present embodiment, when the measured value measuring a certain measuring point obtained reaches the intensive measurement condition of configuration, the metering system of collecting unit is changed to the intensive measurement mode pre-set; Intensive measurement condition comprise measured value transfinite and measured value rate of change transfinite.
The invention is not restricted to above-described embodiment, all technical schemes adopting equivalent replacement or equivalence replacement to be formed all belong to the scope of protection of present invention.
Claims (7)
1. lock station hydraulic structure deformation monitoring and a status early warning method, is characterized in that, comprise the steps:
The step of selected engineering monitoring point;
Gather the step of monitoring information: arrange monitoring instrument at selected engineering monitoring point, building deformation information monitoring instrument collected and monitor server is sent to the influential relevant information of building deformation information;
The step of analyses and comparison monitoring information: the building deformation information collected is carried out storage and intellectual analysis process by monitor server, by deformation data and the same period historical data compare, and obtain building deformation Trend value in conjunction with external factor analysis, this building deformation Trend value and the warning value preset are contrasted, thus judges engineering state and send information to engineering operation monitor and managment platform;
The step of Treatment Analysis result: if described engineering state is judged as dangerous or occupy critical value, incorporation engineering application is analyzed the reason that building deformation transfinites, automatically increase simultaneously and measure the frequency, and issue described engineering state information and information warning according to the time interval of presetting to designated person;
The step of status early warning: described engineering operation monitor and managment platform issues early warning, warning message to terminal device, until managerial personnel remove warning by note system or wireless network automatically to engineering state information.
2. method according to claim 1, it is characterized in that, in the step of described status early warning, when issuing early warning, warning message, the content shown on the terminal device is: total looks of buildings and monitoring system and/or each monitoring section structure outline and/or instrument distribution and/or graphic choosing is surveyed and conditional curve and/or alert locations and/or engineering state information.
3. method according to claim 2, is characterized in that, described building deformation information comprises perpendicular displacement, piezometric tube middle water level and water temperature, expansion joint width, fracture width.
4. method according to claim 3, it is characterized in that, in the step of described analyses and comparison monitoring information, warning value is preset as: perpendicular displacement interval displacement limit value is ± 5mm, perpendicular displacement accumulative displacement amount limit value is ± 150mm, same base plate non-uniform settling amount limit value is 50mm, non-tidewater section piezometric tube pipe middle water level change limit value is set as 10% of annual water level variable, tidal reach piezometric tube pipe middle water level change limit value is according to comprehensively determining with time value and annual water level elevation variable quantity in the past, buildings expansion joint width/limit of crack opening with concrete meet temperature expand with heat and contract with cold be changed to normal.
5. the method according to Claims 1-4 any one, is characterized in that, in the step of described collection monitoring information, adopts center control to carry out to the collection of monitoring information, or adopts automatic control mode to carry out.
6. the method according to claim 3 or 4, it is characterized in that, in the step of described analyses and comparison monitoring information, the comparison of described building deformation information contrasts with its account of the history identical or close in temperature, the combination of upstream and downstream river water level, if there is sudden change that repetition measurement should be carried out, when water level is identical or close in the piezometric tube on this external same chunk base plate, also repetition measurement should be carried out.
7. the method according to claim 3 or 4, is characterized in that, in the step of described analyses and comparison monitoring information, the prediction mode of described building deformation trend is:
For perpendicular displacement, counting period displacement, accumulative displacement amount, drafting displacement graph, estimate displacement variation tendency in conjunction with upstream and downstream river water level variation tendency;
For osmotic pressure, according to piezometric level, water temperature and upstream and downstream river water level, contrast historical data, judges ground seepage pressure variation tendency;
For expansion joint or crack, estimate expansion joint or fracture width variation tendency according to temperature and upstream and downstream river water level variation tendency.
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