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59 results about "Normal fault" patented technology

Normal fault. A geologic fault in which the hanging wall has moved downward relative to the footwall. Normal faults occur where two blocks of rock are pulled apart, as by tension. Compare reverse fault .

Terminal automatic fault diagnosis and restoration method on basis of data mining

InactiveCN103838637AImprove autonomous fault resolution capabilitiesImprove efficiencyFault responseSpecial data processing applicationsRestoration methodData acquisition
The invention discloses a terminal automatic fault diagnosis and restoration method on the basis of data mining. The terminal automatic fault diagnosis and restoration method includes that a terminal acquires fault characteristic data, a cloud side analyzes a fault resolution scheme on the basis of data mining and instructs the terminal to realize fault self-restoration, the terminal gains higher and higher fault self-resolution rate by continuously learning and accumulating fault characteristics and fault resolution schemes, and can automatically process most of normal faults. By the terminal automatic fault diagnosis and restoration method, conventional manual centralized judgment, analysis and processing is changed into fault reason analysis of data accumulation and mining, and on the basis of a fault resolution analysis and recommending mechanism of a parallel distribution and automatic 'exploration-feedback' mechanism and by 'learning' and 'sharing' fault characteristics and resolutions among the terminals, automatic fault resolution capability of the terminals are constantly improved, and finally, a centralized management mechanism which is quite easy to encounter bottleneck is transformed into a mode based on automatic management, diagnosis and restoration of various terminals.
Owner:JIANGSU ZHILIAN TIANDI TECHNOLOGY CO LTD

Test device for simulating tunnel seismic response under fault movements and test methods

InactiveCN106226808ANo excessive displacementGuaranteed continuous misalignmentSeismologyMaterial strength using steady shearing forcesFixed bearingMobile bearing
The invention discloses a test device for simulating a tunnel seismic response under fault movements, which comprises a vibration table, a model test box, a guide rail underframe, a guide rail, a calibrated rod, a spring matrix, a spring mounting plate, a load-bearing bottom plate, an adjustment connecting rod, a fixed bearing, a mobile bearing, a lifting drawer, a jack base and a hydraulic jack. The invention further discloses two test method adopted by the test device for simulating the tunnel seismic response under the fault movements, and the two methods are respectively used for normal fault simulation and reverse fault simulation. A dynamic response of a seismic action in a condition that a fault movement force acts on a tunnel model can be realized by adopting the test device disclosed by the invention, the fault movement force is provided by the hydraulic jack, faults with any inclination angle can be simulated, and the spring matrix can ensure continuous dynamic movements of a hanging side soil body when the vibration table is in operation, so that stress of the tunnel model is enabled to be more consistent with actual situations, the authenticity and the precision of a test result are significantly improved, and research on anti-seismic and shock absorption design of a fault crossing tunnel is facilitated.
Owner:SOUTHWEST JIAOTONG UNIV

Coal series fault formation simulation test device and forward and reverse fault simulation test method

The invention discloses a coal series fault formation simulation test device and a forward and reverse fault simulation test method. The invention relates to the technical field of similar material simulation tests. The device comprises a hydraulic lifting device, a lower angle adjusting device, a push rod device, an upper loading device, an upper angle adjusting device, a lateral loading device and a transparent side plate, the hydraulic lifting device and the angle adjusting mechanism are arranged below the experiment body, the upper loading device and the upper angle adjusting device are arranged above the experiment body, the transparent side plate is arranged on the rear side face of the experiment body, and the lateral loading device is arranged on the end face of the experiment body. When the device is used for simulating the normal fault, the inclination angle of the inclined plate of the lower angle adjusting device is the same as that of the inclined push plate of the upper angle adjusting device, and the upper loading system loads downwards to form the normal fault; when the reverse fault is simulated, a fault inducing device is arranged at the bottom of the experimentalbody, and the reverse fault is formed through loading of a lateral loading device. The technical problem that the fault inclination angle and the crack initiation position of the simulated fault areinconvenient to control is solved.
Owner:SHANDONG UNIV OF SCI & TECH

Space curved surface reconstruction method based on boundary constraint

InactiveCN103500468AQuick displayTroubleshoot Horizontal Resurfacing Issues3D modellingTerrainHorizon
The invention discloses a space curved surface reconstruction method based on a boundary constraint. The space curved surface reconstruction method based on the boundary constraint mainly comprises the steps of (1) collecting original horizon data points and fault data points, and drawing a hanging wall polygon and a heading wall polygon; (2) obtaining height attributes, relation attributes and projection attributes of the original horizon data points and points on the fault polygons; (3) carrying out connection on the original horizon data points and the points of the fault polygons through triangle gridding with the constraint; (4) accomplishing splicing of internal areas and external areas of the hanging wall polygon and the heading wall polygon, namely, accomplishing reconstruction of a three-dimensional space curved surface. The space curved surface reconstruction method based on the boundary constraint solves the problem of reconstruction of the horizon curved surface of the complex terrain in the process of three-dimensional geologic modeling, provides a new idea for isoline drawing, geological block forming and the like, can be applicable to various discrete points or lateral line data, and low in requirement for data, can support various faults such as complex terrain structures such as normal faults, reverse faults and vertical faults, and has good adaptability.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Multi-dimensional fault dynamic demonstration model device

InactiveCN104867392AOvercome rigidityOvercome the abstract presentation processEducational modelsPlastic materialsNormal fault
The invention discloses a multi-dimensional fault dynamic demonstration model device, which belongs to the field of geology model demonstration devices. The multi-dimensional fault dynamic demonstration model device comprises a base; the base is sequentially provided with a transverse adjustment mechanism, three groups of vertical displacement adjustment mechanisms and an angle displacement adjustment mechanism respectively; the transverse adjustment mechanism, the three groups of vertical displacement adjustment mechanisms and the angle displacement adjustment mechanism are respectively provided with a strike-slip fault adjustable mobile support, three groups of normal fault-reverse fault adjustable mobile supports and an over-thrust adjustable mobile support arranged in sequence; and upper ends of the strike-slip fault adjustable mobile support, the three groups of normal fault-reverse fault adjustable mobile supports and the over-thrust adjustable mobile support are sequentially and correspondingly provided with fault regions processed and formed through plastic material. An inflexible and abstract previous fault geologic model demonstration process can be avoided, time and space changes, a force-bearing process and a development result of the fault happening process are represented intuitively, and the multi-dimensional fault dynamic demonstration model device can be applied to teaching demonstration for college mineral and geology specialty and popular science education demands for children.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Method for recovering burial history of stratum near normal fault

ActiveCN108828666AClarify formation contact relationshipImprove drilling efficiencySeismic signal processingLithologyAnalysis data
The invention relates to a method for recovering the burial history of a stratum near a normal fault. The method comprises the steps of: S1, performing well-seismic combination for regional stratigraphic division; S2, selecting a virtual well location of a target area and calculating the denudation amount of the virtual well location; S3, calculating the fault activity rate; and S4, recovering theburial history. The invention adopts well-seismic combination to carry out regional stratigraphic division, selects a virtual well location in the vicinity of the fault of the target well location without passing through the zone, uses the "trend analysis method" to calculate the denudation amount of the stratum, then calculates the fault activity rate according to the strata thickness features of the upthrown side and the downsthrown side of the fault, and determines the fault activity period; stratum erosion data, lithology data, geothermal data and geochemical analysis data are combined torecover the burial history of the study area. The invention can accurately recover the burial history and thermal evolution history of the stratum near the fault zone, thereby laying a foundation forreservoir evolution and high-quality reservoir diagenesis research, further determining the distribution of high-quality reservoirs, improving the drilling efficiency in the exploration and development process, and saving production funds.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Method to complement lost stratum under shaft

ActiveCN103217718APrecise inversionAccurate inversion of changes in physical properties inside oil and gas reservoirsSeismology for water-loggingMissing dataNormal fault
Provided is a method to complement a lost stratum under a shaft. The method improves inversion efficiency and the accuracy rate. The method includes the steps of confirming mutually linked and sealed geological blocks according to reflection characteristics of earthquake reflection waves and geological data, allocating shaft data to the geological blocks according to tracks of the measured shaft, confirming the position of a crossed contact point formed when the shaft penetrates through a section of a normal fault according to all the tracks of the shaft in a work area, calculating thicknesses of an upper stratum and a lower stratum and the position and the thickness of the lost stratum at the crossed contact point, confirming structure characteristics of the lost stratum, rebuilding a stratum sequence section close to the lost stratum to complement the lost stratum, and carrying out earthquake inversion with a result as an original value and a restraint condition of the inversion. The geological characteristics of the upper stratum and the lower stratum are effectively used, the lost stratum is built, on the basis that known data with various sources are fully made use of, lost data are predicted, the result conforms to the geological characteristics, and precise description for change conditions of internal physical properties of a target stratum is benefited in the earthquake inversion.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Dynamic response test device and test method for simulating tunnel subjected to normal fault reverse fault seismogeny

The invention discloses to a dynamic response test device and test method for simulating tunnel subjected to normal fault reverse fault seismogeny. The device comprises a box body and a slide rail mechanism, and the box body comprises a reaction force frame, a test box, a spring, a sliding groove and a bracket; the middle of the test box is divided into two parts including an upper disc and a lower disc. The device simulates a seismic dynamic response test of the surrounding rock of a tunnel under the coupling of horizontal and vertical ground vibration of a seismic zone by periodically dropping a test box from the sliding groove and controlling the height of a small ball and the time interval of releasing the ball, and reconstructs the seismic wave dynamic effect response process and response modes of the surrounding rock of the tunnel in an extreme seismic zone; the upper and lower disc setting of the test box simulates the influence of stratum displacement on the surrounding rock ofthe tunnel during an earthquake, and the device provides accurate reliable suggestions for engineering structure designs, geological disaster prediction and the like, and conducts seismic fortification for engineering construction.
Owner:中国地质调查局成都地质调查中心 +1

Calculation method for slip displacement of strike-slip zone of goose column type normal fault

ActiveCN112859159AAdvancing Quantitative ResearchSeismic signal processingWell loggingWell drilling
According to the method for calculating the slip displacement amount of the strike-slip zone of the goose column type normal fault. Drilling data and logging data are combined, horizon calibration and horizon interpretation are carried out on seismic data to obtain a primary calibration seismic profile map, and according to the primary calibration seismic profile map and a horizon coherence body attribute map, mutual verification is carried out to obtain a fine strike-slip zone plane distribution map and a fine calibration seismic profile map of a sedimentary stratum, then the strike-slip zone trend, the strike-slip fault trend and the horizontal fault amount Li of the strike-slip fault in the active period along the tendency are determined by combining the fine strike-slip zone plane distribution map and the fine calibration seismic profile map, and finally the strike-slip displacement amount sigma (Li/sin alpha) of the strike-slip zone of the normal fault is obtained. Under the condition that a research area lacks obvious two-disc markers or lacks a tail-end broom-shaped fault, quantitative characterization of strike-slip displacement of the strike-slip zone can also be carried out, the defects of methods such as obvious staggered markers and tail-end broom-shaped fault are overcome, and quantitative research on activity of underground cases of the goose column type strike-slip zone is effectively promoted.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Full-mechanized excavation face superhard rock positive fault blasting method

The invention discloses a fully-mechanized excavation face superhard rock positive fault blasting method which comprises the following steps: S1, according to a result of numerical simulation calculation, intercepting effective stress nephograms of a numerical model at different moments for contrastive analysis; s2, constructing a coal rock model to carry out a blasting similar simulation experiment; s3, calculating a tectonic zone control range according to the normal fault fall; s4, energy-gathered blasting holes and control holes are formed in the fault working face according to blasting specifications; s5, the energy gathering direction of energy gathering blasting is arranged; s6, the blasting holes are filled with energy-gathered cartridges, and directional blasting is achieved; s7, forward charging is adopted as the charging mode; and S8, blasting and weakening the hard rock to finish tunneling of the roadheader. According to the method, the super-hard rock normal fault can be safely and rapidly blasted, the hard rock is fractured in a preferable shaped charge blasting mode in a normal fault structure area, the rock body weakening and roadway supporting effects are good, the problem that dynamic disasters such as surrounding rock instability are induced by common blasting disturbance is effectively solved, and roadway tunneling is safely and efficiently carried out.
Owner:ANHUI UNIV OF SCI & TECH

Method for analyzing normal fault mining effect of overburden hard and thick rock face

A method for analyzing normal fault mining effect of overburden hard and thick rock face includes such steps as S1, establishing UDEC numerical model of relative position relationship between overburden hard and thick rock face and normal fault, setting up UDEC numerical model of overburden hard and thick rock face, setting up UDEC numerical model of relative position relationship between overburden hard and thick rock face and normal fault, and setting up UDEC numerical model of overburden hard and thick rock face; S2, obtaining displacement change curves of that hard thick rock layer and theunderlying rock layer and mining stress change curves of the hard thick rock layer; S3, obtaining the change curve of mining to the stress state of the hard thick rock stratum fault plane and the change curve of mining to the slip amount of the hard thick rock stratum fault plane. The invention solves the problem that the prior art lacks the research on the effect of the fault on the hard and thick rock strata, in order to study and analyze the normal fault mining effect of overlying hard and thick rock face, it is beneficial to further reveal the mechanism of rock burst induced near the fault, and to provide scientific basis and technical support for the study of rock burst, coal and gas outburst, roof control of rock pressure under similar complex geological conditions.
Owner:SHANDONG UNIV OF SCI & TECH

Tectonic earthquake simulation demonstration device

The invention discloses a structural earthquake simulation demonstrator, which comprises an operation table, on which an electric demonstrator is arranged, and a control button is also arranged on the operation table, and the control button corresponds to 8 kinds of structural earthquake demonstrations: normal fault , reverse fault, left-handed fault, right-handed fault, left-handed normal fault, left-handed reverse fault, right-handed normal fault, right-handed reverse fault structure earthquake, the demonstrator also includes a video display device, the video display device is a liquid crystal Display, the size of the said video display device is not less than 47 inches. The main body of the tectonic earthquake simulation demonstrator of the present invention is an electric demonstrator, which can demonstrate the occurrence process of 8 kinds of tectonic earthquakes, and the operator can control the demonstrator to demonstrate the corresponding tectonic earthquakes through 8 control buttons on the console. In this way, the earthquake occurrence process can be displayed more intuitively for the operator, which is conducive to the operator's understanding of the differences between the 8 types of tectonic earthquakes, a deeper impression, and a quick grasp of earthquake knowledge.
Owner:TAIZHOU WEIER INFORMATION TECH CO LTD
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