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54results about How to "Reduce survey costs" patented technology
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Operation and method for prediction and management of the validity of subject reported data
InactiveUS20080052259A1Improve consistencyGood reproducibilityDigital computer detailsComputation using non-denominational number representationPattern detectionSatisfaction rate
A system for developing and implementing empirically derived algorithms to generate decision rules to predict invalidity of subject reported data and fraud with research protocols in surveys allows for the identification of complex patterns of variables that detect or predict subject invalidity of subject reported data and fraud with the research protocol in the survey. The present invention may also be used to monitor invalidity of subject reported data within a research protocol to determine preferred actions to be performed. Optionally, the invention may provide a spectrum of invalidity, from minor invalidity needing only corrective feedback, to significant invalidity requiring subject removal from the survey. The algorithms and decision rules can also be domain-specific, such as detecting invalidity or fraud among subjects in a workplace satisfaction survey, or demographically specific, such as taking into account gender or age. The algorithms and decision rules may be optimized for the specific sample of subjects being studied.
Owner:ERESTECH
Wireless rotating penetrometer
InactiveCN101761062AAdd depthExpand the scope of penetrationGeological measurementsIn situ soil foundationJoint damageWireless transmission
The present invention discloses a wireless rotating penetrometer. The penetrometer organically integrates drilling and penetration and realizes wireless transmission with electromagnetic waves. The penetrometer can acquire penetration parameters in real time, overcome certain defects of traditional static penetrometers, and quickly, accurately and conveniently realize the in-situ tests of stratum depth. Stratum probing depth can be obviously increased, the defects resulting from the use of cables in signal transmission, such as easy joint damage, poor insulation, long time consumption for operation, etc can be overcome, investigation depth and quality can be largely improved, and investigation cost can be reduced. The penetrometer can be broadly used in the investigation of expressways, railways and other important buildings.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Underground cavity analysis method considering nonlinear softening and dilation characteristics of surrounding rock
InactiveCN104596837AAvoid complex modeling processFast modelingStrength propertiesStress–strain curveUltimate tensile strength
The invention discloses an underground cavity analysis method considering nonlinear softening and dilation characteristics of surrounding rock. According to the method, a hyperbolic softening model based on the characteristics of the Hoek-Brown criterion is established according to the characteristic that the strength parameter of the surrounding rock of a tunnel is weakened with the increasing of the strain of a plastic zone, the model is based on the characteristics of a resultant stress-strain curve of the surrounding rock, and reflects the nonlinear characteristics of the surrounding rock through example verification, the model is applied to analysis for the surrounding rock subjected to strain softening in underground construction, and a new method for an underground cavity analysis is established by considering the nonlinear softening and non-associated flow characteristics as well as a nonlinear failure criterion of a rock mass; the solutions of the stress of the underground cavity, the deformation of the cavity and the radius of the plastic zone are obtained; according to the method disclosed by the invention, the dilation characteristics of the surrounding rock are considered according to a non-associated flow criterion, and with regard to the deformations of the surrounding rock under different plastic models, application example results indicate that the strain dilation of a rock-soil material with dilation and strain softening is considered to be safe.
Owner:张斌伟 +1
Automatic loss assessment method and system for automobile appearance on the basis of deep neural network
ActiveCN108921068AReduce the frequency of accidentsDoes not affect trafficCharacter and pattern recognitionNeural architecturesEngineeringMobile phone
The invention discloses an automatic loss assessment method and system for automobile appearance on the basis of a deep neural network. A mobile phone shoots the long-shot / medium-shot photo of an accident automobile, automobile and automobile assembly component detection is carried out on the long-shot / medium-shot photograph in real time, according to an automobile and automobile assembly component detection result, a user is confirmed to shoot in a proper distance, and the user is prompted to shoot a first local automobile photo; the mobile phone continuously shoots the detail photo of the accident automobile, and a damage area in the detail photo is detected in real time; when the damage area is detected, the user is prompted to shoot a first detail photo; after the photo finishes beingshot, the user is continuously prompted to approach to shoot the area, when the damage area is detected again, the user is prompted to shoot a second detail photo, after the second detail photo finishes being shot, a current damage unit is submitted; and a background server carries out damage identification on each group of damage units submitted from the mobile phone, and the identification results of multiple groups of damage units are combined to obtain the damage details of the accident automobile.
Owner:北京深智恒际科技有限公司
CT (Computed Tomography) imaging method of three-dimensional multi-well combined well land
InactiveCN102877828AExpand the viewing angle rangeHigh resolutionConstructionsImage resolutionComputing tomography
The invention relates to a CT (Computed Tomography) imaging method, in particular to the CT imaging method of a three-dimensional multi-well combined well land, which belongs to the technical field of engineering seismic exploration. The method comprises the steps of: based on initial arrival of a single shot of a field record, establishing a speed model when field seismic travel is picked up through the initial arrival; forward modeling and solving a ray path and a theoretical travel; then establishing an inversion equation; modifying the speed model according to time residual of travel; iterating successively and inversely calculating; and finally obtaining a high precision medium speed field. In engineering reconnaissance, generally, abnormal bodies in small scale are to be solved, and higher resolution is required. The CT imaging method of the three-dimensional multi-well combined well land is high in probe precision, low in reconnaissance cost, simple in structure, visualized in probe result, intuitionistic and clear and convenient to identify and can assist or partially replace the drilling work.
Owner:SHANXI SHANDI GEOPHYSICAL SURVEY TECH CO LTD
Towing type navigation water sampler
InactiveCN1595096AImprove collection efficiencyPrecise control of depthWithdrawing sample devicesEngineeringHigh intensity
It is a drag sailing water sampler with a dragged body, which has a dive pump on its middle and down part and a sensor on its middle and upper parts inside. The water-in mouth of the pipe is connected with the water-out mouth of the dive pump and the water-in mouth and water-out mouth are fixed together by use of catcher and the pipe sticks out of the drag body and the hanging hook upper end is fixed together with hook ring and nylon through steel cable and is located on the upper end of the water pipe. The wire and cable are located on one side of the water pipe through anti-water adhesive tape. The advantages in this invention are the following: first it can make water sample continuously with high intensity in sailing status; second to accurately control water sample depth and adjust sample depth when needed on real time; third to improve the sample efficiency and lower the investigate cost.
Owner:OCEAN UNIV OF CHINA +1
Amphibious geotechnical engineering investigation platform and use method
PendingCN108674105AOvercoming the Impact of SurveyingProtect environmentAmphibious vehiclesFloating buildingsIntertidal zoneMarine navigation
The invention provides an amphibious geotechnical engineering investigation platform and a use method. The investigation platform comprises the following composition modules of an operation platform used for installing devices required for exploration sampling and in-situ tests, a walking module arranged below the operation platform, comprising a rack and a crawler-type walking device and providing power for the operation platform to travel on land, a leveling module arranged between the operation platform and the walking module and used for keeping the operation platform horizontal in the land area investigation process, a lifting module arranged around the operation platform, comprising hydraulic lifting devices and multiple pile legs and used for making the pile legs ascend and descendrelative to the operation platform, and a propelling module arranged on the rack and providing navigation and steering power for the operation platform in the water area investigation process. The amphibious geotechnical engineering investigation platform has the beneficial effects that amphibious operation is achieved, the influence caused by tide coming and tide going on intertidal zone area investigation is overcome, and it can be guaranteed that the operation platform is horizontal.
Owner:CCCC THIRD HARBOR CONSULTANTS
Engineering investigation unmanned aerial vehicle system based on satellite positioning and navigation and surveying and mapping method
PendingCN111284694AWith global positioningOnline and offline data synchronizationEnergy efficient board measuresAircraft indicatorsVoice communicationTransmission technology
The invention discloses an engineering investigation unmanned aerial vehicle system based on satellite positioning and navigation and an investigation surveying and mapping method. The engineering investigation unmanned aerial vehicle system comprises an unmanned aerial vehicle body, supporting arms, propellers, undercarriages, a transportation device, a sampling device, a power supply, a monitoring device and a workstation. The unmanned aerial vehicle body internally comprises a navigation positioning module, an environment detection module, a survey lofting module, a survey work monitoring module, a wireless communication module, a transportation module, a sampling module, a text image recognition module, a flight control module, an anti-collision protection module, a power supply module, a memory and a loss finding module. According to the invention, an advanced positioning navigation technology, a remote sensing image technology, a radar technology, a flight control technology, a real-time aerial image voice communication technology, an intelligent investigation technology, a text image recognition technology and a wireless transmission technology are adopted; geotechnical engineering investigation and high and new technologies are combined, and multiple important functions such as investigation automatic measurement and lofting, coordinate elevation remeasurement, drillingmachine navigation reminding, investigation work quality progress deviation rectification, automatic transportation and sampling, man-machine interaction, text image automation and unmanned aerial vehicle loss finding are achieved.
Owner:南京智慧岩土工程技术研究院有限公司
Multistage three-component wave detector device
InactiveCN101833108AImprove anti-interference abilityReduce in quantitySeismic signal receiversWave detectionPetroleum
The invention relates to a multistage three-component wave detector device which is provided with a plurality of wave detector units and a propelling rod; each wave detector unit is provided with a cylindrical main body; a three-component wave detector is installed in the cylindrical main body; the wave detector units are connected by a steel rope; the outer side of the cylindrical main body of the wave detector unit is provided with an elastic support arm; wall attached coupling with a well wall is realized by the elasticity of the elastic support arm; the propelling rod is formed by combining and connecting a plurality of sections of connecting rods; each connecting rod is provided with a fork groove; and the fork groove is matched with a support arm pin shaft which is installed on the elastic support arm for downwards propelling the wave detector units in the fixed direction. The invention has compact structure, convenient and reliable connection and simple and convenient operation and use, has the characteristics of small diameter size, strong small hole diameter adaptability and convenient connection and disassembly, can carry out construction and receiving in the fixed direction, greatly reduces the survey cost, and is suitable for well measuring wave detection of petroleum and earthquake exploration, mine geology, construction engineering, and the like.
Owner:中国石化集团胜利石油管理局地球物理勘探开发公司 +1
Geological prospecting method applied to shallow-buried underground engineering in water-deficient area
ActiveCN111273375AAvoid the disadvantages of time-consuming, costly and labor-intensiveReduce survey costsSurveyWater resource assessmentLithologyArid
The invention provides a geological prospecting method applied to shallow-buried underground engineering in a water-deficient area. The geological prospecting method comprises the steps that geological prospecting is conducted, geological information of an engineering site is preliminarily obtained through remote sensing geological interpretation and engineering geological survey; comprehensive geophysical prospecting is carried out, and a small amount of drilling and logging work is carried out on key parts; in combination with an indoor rock-soil mechanics test, engineering geological condition comprehensive evaluation of an engineering site is obtained and comprises conventional stratum lithology, geological structure and surrounding rock classification, foundation bearing capacity anddynamic physical and mechanical parameters of a rock-soil body, and the parameters are used for engineering stability calculation of national defense engineering under the strong dynamic load condition. The investigation result meets the conventional requirements of shallow-buried underground engineering design construction, and meets the special purpose of national defense engineering. The geological prospecting method overcomes the defect that time and money are wasted when conventional prospecting mainly based on drilling is adopted, the prospecting cost is low, the efficiency is high, andthe geological prospecting method is more suitable for geological prospecting of shallow-buried underground engineering in arid and water-deficient areas.
Owner:中国人民解放军火箭军工程设计研究院
Power penetrometer capable of automatically taking energy correction and dynamic responses into consideration
ActiveCN106223305AShorten the cycle of geological exploration and evaluationShorten the exploration and evaluation cycleIn situ soil foundationCoaxial cableData acquisition
The invention discloses a power penetrometer capable of automatically taking energy correction and dynamic responses into consideration. The power penetrometer sequentially comprises a drop hammer (7), a stabilizing tail vane (6) and a feeler lever (1) from top to bottom, wherein the upper end of the feeler lever (1) is connected with the stabilizing tail vane (6), third strainometers (4.3) are symmetrically mounted on the inner wall of the upper end of the feeler lever (1), second acceleration sensors (3.2) are symmetrically arranged at the lower end of the stabilizing tail vane (6), a conical tip (2) is arranged at the lowermost end of the feeler lever (1), a first acceleration sensor (3.1) and second strainometers (4.2) are arranged in the portion, above the conical tip (2), inside the feeler lever (1), a friction sleeve (5) is arranged outside the feeler lever (1), and first strainometers (4.1) are arranged on the inner wall of the top of the friction sleeve (5); and the drop hammer (7) which can be automatically triggered to drop is arranged on the upper portion of the stabilizing tail vane (6), and electric signals of all sensors of the penetrometer are transmitted to a data acquisition and analysis instrument (9) through a coaxial cable (8.1) and a signal cable (8.2). The power penetrometer can evaluate dynamic responses and detect the strength of a soil body and has the characteristics of being in situ, multifunctional, automatic and the like.
Owner:SOUTHEAST UNIV
Auxiliary side-scan sonar operation device
InactiveCN105738907AReduce water depthEnsure safetyOpen water surveyWater resource assessmentRemote controlTransducer
The invention relates to an auxiliary side-scan sonar operation device. The device comprises a floating boat main body, a lifting device, a driving device, an energy transducer and a land computer terminal. Through arrangement of the land computer terminal, a first antenna, a second antenna, and a third antenna, the staff at the land computer terminal can know the underwater environment of the underwater energy transducer in real time, avoids underwater obstacles, and avoids damages to the energy transducer, wherein the first antenna, the second antenna, and the third antenna communicate with the land computer terminal. On the other hand, the land computer terminal can control the auxiliary side-scan sonar operation device through the first antenna, the second antenna, and the third antenna in real time, therefore the sonar operation can be carried out through a remote control mode, thus the boat rent is lowered, the cost is reduced, and the problem of low accuracy of side-scan images caused by renting miniature boats is avoided.
Owner:SECOND INST OF OCEANOGRAPHY MNR
Method for remote sensing pre-judging of grade of engineering surrounding rocks
The invention belongs to the field of engineering surrounding rock classification, and in particular, relates to a method for remote sensing pre-judging of the grade of engineering surrounding rocks. The method comprises the following steps: step one, extracting engineering geological type and geological structure factor remote sensing information; step two, determining the rock uniaxial saturated compressive strength and the rock mass integrality index; step three, calculating the rock mass basic quality index BQ; and step four, classifying the surrounding rocks. Through the steps of extraction of the remote sensing information, determination of the rock mass integrality index and the rock uniaxial saturated compressive strength, calculation of the rock mass basic quality index BQ, surrounding rock classification and the like, rapid classification of the engineering surrounding rock grade is realized, the method is not restricted by topography landform and spatial regions, avoids the blindness of data blank area working, improves the work efficiency, reduces the workload, reduces the cost for investigation, and provides reliable reference data for engineering later detailed investigation and design and construction.
Owner:中国人民解放军沈阳军区司令部工程科研设计所
Method for measuring water level and water head height of confined aquifer by pore pressure static cone penetration test
ActiveCN107102378AAdd application functionsReduce survey costsWater resource assessmentProspecting/detection of underground waterPore water pressureWater level
The invention discloses a method for measuring the water level and the water head height of a confined aquifer by the pore pressure static cone penetration test. The method comprises steps of 1) carrying out the pore pressure static cone penetration test on the soil layer of the measured area; 2) according to the soil layer divided by the pore pressure static cone penetration test, determining the aquiclude and the confined aquifer, and determining the top buried depth H1 of the confined aquifer; 3) collecting the pore pressure dissipation test stabilization pore water pressure value u0 in the confined aquifer; and 4) calculating the water level h and the water head height hw of the confined aquifer, wherein the calculation formulas are hw=(u0-[gamma]wD) / [gamma]w=u0 / [gamma]w - D (1) and h=H1 - hw (2), hw indicates the pressure head height of the top surface of the confined aquifer; [gamma]w represents the water weight, taking 10kN / m3; H is the test depth; H1 is the top surface buried depth of the confined aquifer; D is the distance from the hole pressure filter of the pore pressure static cone penetration probe to the top surface of the confined aquifer D = H-h; u0 indicates the pore pressure dissipation test stabilization pore water pressure value at the confined aquifer test depth; h represents the buried depth of the water level of the confined aquifer.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
Application of engineering geophysical exploration technology to engineering investigation and foundation detection in reclamation areas
Application of engineering geophysical exploration technology to engineering investigation and foundation detection in reclamation areas is characterized in that the technology can realize geophysical exploration of super-thick backfill layers and basement rock depth in reclamation areas and backfill dynamic compaction detection. The specific contents are as follows: achieving geophysical exploration of super-thick backfill layers and basement rock depth in reclamation areas; adopting a rig sinker bar for excitation to increase the seismic source energy, wherein the sinker bar is 400-500 Kg in weight and 2-3 m in drop distance and is used for prospecting data of 15-40 m depth; achieving backfill dynamic compaction detection; (1) adopting a 200 Kg hammer for dynamic sounding to effectively penetrate 12 m gravelly soil fill stratum so as to visually obtain design parameters of coarse-grained composite soil plain fill before and after ground treatment; (2) combining the monitoring method and the multi-channel instantaneous surface wave method to effectively detect the dynamic compaction effect and accurately and quantitatively evaluate the influence depth, range and strength parameters of dynamic compaction.
Owner:鞍钢集团工程技术有限公司
Foundation settlement calculation method based on surface wave exploration technology
ActiveCN111722281AAvoid damageSimple calculationFoundation testingSeismic signal processingSoil scienceSoil horizon
The invention discloses a foundation settlement calculation method based on a surface wave exploration technology. The method comprises the steps of carrying out field ground wave exploration, collecting and processing transient surface wave data, determining a foundation settlement influence depth, dividing a soil layer, determining the thickness of each layer of soil, the number of stratums andthe surface wave speed of each layer of soil body in a foundation settlement influence depth range, and determining the type of each layer of soil; respectively calculating a foundation depth influence coefficient, an additional stress coefficient of each layer of soil body caused by foundation stress, influence factors of each soil layer in the foundation settlement influence depth range and a settlement experience correction coefficient; and finally calculating to obtain the final settlement amount of the foundation. The calculation process of the method is simple and fast; required parameters come from transient surface wave investigation, drilling, sounding and the like are not needed, the field adaptability is high, nondestructive testing is achieved, equipment is simple, the investigation cost is low, the investigation efficiency is high, under the condition that an experience correction coefficient is not utilized, high calculation precision is still achieved, and high use and popularization value and wide application prospects are achieved.
Owner:CHINA RAILWAY DESIGN GRP CO LTD
Method for static sounding of penetration resistance to rapidly test static soil pressure coefficient
ActiveCN106759220ARigorous verification processImprove accuracyIn situ soil foundationSoil scienceDesign cycle
The invention discloses a method for static sounding of penetration resistance to rapidly test the static soil pressure coefficient. The method comprises the steps that firstly, the static sounding test is conducted on a soil layer of a measured area, and the tip resistance parameter qc and the static water level uw of the measured area are collected; secondly, the static soil pressure coefficient K0 is obtained through calculation, the calculation formula is K0=0.41n(Uc)+0.3; Uc=(sigmah-uw) / sigma'V; sigmah=0.45qc, wherein Uc is the tip resistance normalization stress ratio, and sigma'V is the vertical effective stress. By application of the method, the field static soil pressure coefficient changing value along with depth can be truly reflected, the uniform stratum stress historical state is accurately embodied and conforms to the engineering practice, field measurement data are provided for design on the premise that the testing technology means is not increased, the reconnaissance and design period is shortened, the reconnaissance cost is saved, efficiency is improved, and high popularization value is achieved.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP +1
A dynamic penetrometer automatically considering energy correction and dynamic response
ActiveCN106223305BShorten the cycle of geological exploration and evaluationShorten the exploration and evaluation cycleIn situ soil foundationCoaxial cableData acquisition
Owner:SOUTHEAST UNIV
Damage and leakage detection system for impermeable layer of refuse landfill
The invention relates to a damage and leakage detection system for an impermeable layer of a refuse landfill. The system comprises a signal transceiver, a remote controller, a control box, a driving device, a base plate, bique rubber compound wheels and a detection component, wherein the control box is arranged on the base plate; a micro control module is arranged in the control box; the signal transceiver is arranged at the top of the control box and communicated with the micro control module through a logical circuit; the driving device is arranged on the base plate and communicated with the micro control module; the bique rubber compound wheels are arranged below the base plate, and each of the bique rubber compound wheels is composed of a bique ring and two rubber rings; a conductive component and a conducting solution are arranged in each bique ring; the detection component is arranged in the control box, communicated with the micro control module through the logical circuit and communicated with each conductive component through a conducting wire. The leakage detection system is suitable for leakage detection of naked membranes at bottoms and on slopes of refuse landfills with complex terrains, geomembranes covered with partially-dried pebble beds at bottoms and naked membranes at bottoms of leachate regulating tanks, the survey efficiency can be improved effectively and the missing rate is reduced.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI +1
Seismic survey design using full wavefield inversion
ActiveUS10386511B2Reduce survey costsIncrease speedImage enhancementImage analysisReference modelData set
Method for selecting an acquisition geometry for a seismic survey based on ability to resolve an a priori velocity model. Two or more candidate acquisition geometries are selected (301, 302), differing in areal coverage and cost to perform. Then compute a synthetic seismic dataset for each geometry using a detailed geometrical reference model of the subsurface (301). Invert the synthetic seismic datasets preferably using simultaneous source FWI, and preferably with Volume of Investigation constraints, to determine model updates (303, 304). Quantitatively assess the value of the additional traces in a fuller dataset relative to a subset (306), using one or more statistics based on the accuracy of the updated models, such as improved match to the reference model, better fit of seismic data, or rate of change in improvement with iterations. Inversions may be cascaded for further efficiency (314).
Owner:EXXONMOBIL UPSTREAM RES CO
Detecting method for pile-bottom supporting layer of mechanical pore-forming concrete filling pile
The invention provides a detecting method for a pile-bottom supporting layer of a mechanical pore-forming concrete filling pile. The detecting method comprises the following steps: (1) uniformly placing a plurality of dual-detecting wave detectors in a peripheral direction on the bottom of a large-diameter pile hole; (2) manually exciting elastic wave on a bottom center part of the pile hole by use of an electric spark earthquake source; (3) utilizing a shallow-layer seismograph to record reflected waves received by the dual-detecting wave detectors on the bottom of the pile hole; (4) analyzing and researching waveforms of the reflected waves to judge whether the bottom of the pile hole has undesirable geological conditions such as karst caves, fluid bowls or crushed zones and the like within a certain range. According to the method provided by the invention, the bottom of the pile hole is not needed to be reconstructed for carrying out geological exploration and drilling, so that the supporting layer detecting cost is greatly reduced, and the supporting layer detecting speed is high.
Owner:SHANDONG ZHENGYUAN ENG DETECTION CO LTD
Sampling device for underground water detection and sampling method thereof
PendingCN112129580AAvoid pollutionTo achieve the purpose of fixed depth samplingWithdrawing sample devicesAir pumpEnvironmental engineering
The invention discloses a sampling device for underground water detection. The sampling device comprises an air pump, an air valve and a sampler, wherein the output end of the air pump, the air valveand the input end of the sampler are sequentially connected; the air pump is connected with one end of the air valve through an air guide pipe, and the other end of the air valve is connected with theinput end of the sampler through a telescopic air guide pipe; the air guide pipe and the telescopic air guide pipe respectively comprise a plurality of branch air pipes which are correspondingly connected; gravity blocks for rope traction are arranged at the two sides of the sampler; a rope winder for controlling the length of a rope is arranged on the air guide pipe; the output end of the rope winder is connected with the end part of the rope; the sampler controls the descending depth through controlling the length of the rope by the rope winder and matching with the air output by the air pump; and in addition, the sampler is stretched to ascend through the rope winder. When the technical scheme is adopted, the accuracy of collected water samples is ensured, the collection efficiency isimproved, and the survey cost is reduced.
Owner:HUAIBEI MINING IND +1
Method for detecting internal crack positions of structure body by using Rayleigh wave
InactiveCN106646586AAccurate detectionData processing is simpleSeismologyPropagation timeClassical mechanics
The invention discloses a method for detecting an internal crack position of a structure body by using the Rayleigh wave. The method comprises the following steps of (1) selecting a detection area of the structure body, arranging a Rayleigh wave excitation source on the surface of the structure body, and arranging multiple receiving points; (2) calculating a horizontal distance from one receiving point to the top end of a crack by using a propagation time difference between an incident Rayleigh wave and a reflected Rayleigh wave of the receiving point near the excitation source; and (3) searching corresponding crack position depth hT and crack dip angle alpha from a curve according to the calculated Rayleigh wave amplitude ratio AI. The method has the advantages that (1) field detection equipment is simple and portable; (2) an artificial seismic source is utilized; (3) data processing is relatively simple; (4) the survey cost is relatively low; and (5) the depth and angle of the internal crack can be accurately determined by combining a few of drill holes.
Owner:重庆市第一中学校 +5
Method for quickly determining rock cutting strength and anti-cutting strength indexes
The invention discloses a method for quickly determining rock cutting strength and anti-cutting strength indexes. The method is implemented specifically according to the following steps that 1, fieldgyration penetration testing is conducted on rock, and thus gyration penetration data are obtained; 2, the data obtained in the step 1 are processed, and thus the mean values of gyration penetration drilling parameters of all strata are obtained and comprise the mean value of gyration torque and the mean value of drilling pressure; and 3, the cutting strength and anti-cutting strength indexes of all the strata in the rock are calculated through the drilling parameters obtained in the step 2. The method is adopted to calculate basic cutting strength, calculation parameters of the basic cuttingstrength only need to be from the field gyration penetration test, drilling is not needed, the influences of traditional drilling sampling and indoor geotechnical testing on disturbance of a foundation soil mass and inaccurate test results can be avoided, the reconnaissance procedure is simplified, the reconnaissance cost is lowered, and application prospects are broad.
Owner:XIAN UNIV OF TECH
Bentonite slurry lubricated penetration rod used for piezocone penetration test
InactiveCN104234023AShorten the survey cycleReduce survey costsIn situ soil foundationSlurryTested time
The invention discloses a bentonite slurry lubricated penetration rod used for a piezocone penetration test. The upper part, above the ground, of the penetration rod (3) is provided with a penetration system (2), and the penetration system (2) is connected with a bentonite grouting machine (1); the lower part of the penetration rod (3) is provided with a resistance reducer (5); a first liquid outlet (4-1) and a second liquid outlet (4-2) are respectively formed in both sides of the resistance reducer (5); the middle of the penetration rod (3) is hollow, so that slurry injected by the bentonite grouting machine (1) is injected from the upper part of the penetration rod (3), outflows from the lower part of the penetration rod (3) through the first liquid outlet (4-1) and the second liquid outlet (4-2) in both sides of the resistance reducer (5), and fills a gap between the penetration rod (3) and a soil body. The bentonite slurry lubricated penetration rod has the characteristics of being small in penetration resistance, big in penetration depth, jam-proof, high in precision, suitable for various soil layers, and the like; by adopting the bentonite slurry lubricated penetration rod, the problems that the penetration and the pullout of the penetration rod are difficult and the like during the piezocone penetration test can be effectively solved; the efficiency of the piezocone penetration test is obviously improved; the test time is shortened, and the test cost is reduced.
Owner:SOUTHEAST UNIV
Power device of survey equipment
PendingCN110282103AExpand the scope of activitiesImprove completenessMeasuring open water movementTesting waterEngineeringSea bottom
The invention provides a power device of survey equipment. The power device of the survey equipment comprises a power generation mechanism and a moving mechanism; the power generation mechanism and the moving mechanism are electrically connected with each other; the power generation mechanism is a crawler power generation mechanism; and the moving mechanism is a crawler moving mechanism. According to the power device of the survey equipment, energy and power can be provided for most sea bottom survey and monitoring robots so that the moving range of the survey equipment can be greatly enlarged; and moreover, the power device of the survey equipment can be recovered to reduce the survey cost; through long-time deep diving survey, the survey detailed degree and accuracy of the sea area can be effectively enhanced to be convenient for construction and development of the sea area; and the power device of the survey equipment possesses wide applicability in the field of sea survey.
Owner:SECOND INST OF OCEANOGRAPHY MNR
Method, device and system for displaying defective components of cultural relics
This application discloses a method, device and system for displaying the defective components of cultural relics as well as a method and device for determining the defective components of cultural relics and two kinds of electronic devices. The method for displaying the defective components of the cultural relics includes the following steps that: the actual three-dimensional model data of each preset component of a specified cultural relic are acquired; for each preset component, the actual three-dimensional model data of the preset component are compared with the pres-stored original three-dimensional model data of the preset component, so that the defect rate of the actual three-dimensional model of the preset component is obtained; defective component information is generated according to the defect rate of the actual three-dimensional model of each preset component and the preset defect rate threshold of each preset component; and the virtual-reality actual three-dimensional model of each defective component is displayed according to the defective component information. With the method for displaying the defective components of the cultural relics of the invention adopted, survey cost can be effectively reduced, and survey efficiency and the accuracy of survey results can be improved.
Owner:ALIBABA GRP HLDG LTD
A leak detection system for damage to the anti-seepage layer of a landfill site
The invention relates to a damage and leakage detection system for an impermeable layer of a refuse landfill. The system comprises a signal transceiver, a remote controller, a control box, a driving device, a base plate, bique rubber compound wheels and a detection component, wherein the control box is arranged on the base plate; a micro control module is arranged in the control box; the signal transceiver is arranged at the top of the control box and communicated with the micro control module through a logical circuit; the driving device is arranged on the base plate and communicated with the micro control module; the bique rubber compound wheels are arranged below the base plate, and each of the bique rubber compound wheels is composed of a bique ring and two rubber rings; a conductive component and a conducting solution are arranged in each bique ring; the detection component is arranged in the control box, communicated with the micro control module through the logical circuit and communicated with each conductive component through a conducting wire. The leakage detection system is suitable for leakage detection of naked membranes at bottoms and on slopes of refuse landfills with complex terrains, geomembranes covered with partially-dried pebble beds at bottoms and naked membranes at bottoms of leachate regulating tanks, the survey efficiency can be improved effectively and the missing rate is reduced.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI +1
Methods and devices for surveying elevator hoistways
InactiveCN101888964BShorten the timeHigh precisionUsing subsonic/sonic/ultrasonic vibration meansUsing optical meansMarine engineeringDistance sensors
Owner:OTIS ELEVATOR CO
Method for determining horizontal consolidation coefficient of saturated soft clay by use of flat dilatometer test C-value dissipation test
ActiveCN107315080AReduce the difficulty of operationAdd application functionsEarth material testingStable statusSoft clay
The invention discloses a method for determining the horizontal consolidation coefficient of saturated soft clay by use of a flat dilatometer C-value dissipation test. The method comprises the following steps: performing the flat dilatometer C-value dissipation test to acquire a plurality of flat dilatometer Ct values within the test time, wherein the subscript t represents time; (2)drawing an A dissipation curve; (3) determining an initial status value C0 and a stable status value C100; (4)determining the time t50 C of 50% dissipation of the flat dilatometer C-value dissipation test; and (5) calculating the horizontal consolidation coefficient Ch: as shown in the description. On the premise of not increasing the test technical measures, the problem caused by directly utilizing the flat dilatometer test to test the horizontal consolidation coefficient of the saturated soft clay is solved, the application function of the flat dilatometer test is expanded, the investigation cost is lowered, the efficiency is improved, and the effect is obvious.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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