393 results about "Fracture zone" patented technology

The invention discloses a diastrophic stratum deformation analysis and calculation method for an active fault zone, and relates to the technical field of geological engineering calculation, and the method comprises the following steps: (1) constructing a three-field dynamic coupling model based on an energy density gradient, and unifying dimensions of physical parameters of a mechanical field, a seepage field and a temperature field as an energy density function; according to the diastrophic stratum deformation analysis and calculation method for the active fault zone, the problems of multi-physical field splitting and time scale solidification in a traditional method are solved by constructing an energy-mediated multi-field dynamic coupling model and a space-time decoupling algorithm. On the basis of an interaction path of energy density gradient tensor unified mechanics, seepage and temperature fields, instantaneous bidirectional feedback of three-field parameters is achieved, compared with a traditional model, the pore pressure prediction error is reduced, and the calculation efficiency is improved; and meanwhile, the joint simulation efficiency of the second-level seismic event and the ten-thousand-year tectonic motion is improved, the interface parameter continuity error is controlled, and the precision and stability of cross-scale modeling are improved.

The invention belongs to the technical field of shale oil and gas development, and particularly discloses a multi-source information fused horizontal well casing deformation risk section prediction method, which comprises the following steps: representing shaft crack zone information; establishing a work area construction model and an attribute model; with shaft crack zone information as a constraint, disturbance is performed on crack information predicted based on seismic data, and a three-dimensional crack network model is established; a work area geomechanical model is established, and crustal stress distribution characteristics in the shaft direction of the horizontal well are obtained; a work area casing deformation comprehensive database is established by combining casing mechanical attribute data and work area fracturing construction parameters, and fault zone activity factors are obtained based on the Mohr-Coulomb criterion; and establishing a stratum-fracture-wellbore model, obtaining a mathematical model of fracture zone activity factors and casing deformation degrees, and dividing casing deformation risk grades. According to the method, accurate recognition of the well periphery crack network and advanced pre-judgment of the well periphery crack activation risk and the wellbore casing deformation can be achieved, and guidance is provided for formulating targeted casing deformation prevention and control measures.

The invention provides a rock burst and mine earthquake collaborative treatment method based on regional fracturing, and the method comprises the following steps: selecting a working surface, determining a plurality of rock burst control layers with rock burst risks, then determining a plurality of mine earthquake control layers with mine earthquake risks, and determining a plurality of mine earthquake control layers with mine earthquake risks; performing main control layer analysis on all the rock burst control layers in the fissure zone preferentially to determine a multi-stage rock burst main control layer, performing main control layer analysis on all the mine earthquake control layers above the fissure zone to determine a multi-stage mine earthquake main control layer, and performing logging correction analysis; according to the length and width of the working face, the thickness of the rock burst control layer and the number of the mine earthquake control layers, the layout design of separate layer fracturing is determined, the treatment method achieves comprehensive prevention and control of the mine area risk, the treatment effect on the rock burst and the mine earthquake is remarkable, the disaster risk is reduced, and a powerful guarantee is provided for mine safety production.

The invention discloses a surrounding rock deformation treatment method which comprises the following steps: determining the range of a strong influence area in a fault through advanced geological detection, and adopting a graded support strategy for different influence areas: when the width of the strong influence area in the fault is three times greater than the span of a tunnel, arranging an NPR anchor cable group on the ground surface to form a pre-reinforcement system; during benching, NPR anchor rods and steel arches are combined for supporting in a fault non-weak-influence area, and long and short NPR anchor cables are additionally arranged in a fault weak-medium-influence area for collaborative supporting; double-gradient grouting is implemented in front of the boundary of the moderately strong affected zone, a peripheral reinforcing shell is formed by grouting at the first gradient of 2-3 MPa, and an internal permeation network is formed by grouting at the second gradient of 3.5-4.5 MPa; through real-time monitoring of the axial force of the steel arch, a linkage response mechanism of anchor cable secondary tensioning and grouting and supplementing is established. According to the method, through combination of advanced pre-reinforcement, graded support and dynamic regulation, active control over tunnel surrounding rock deformation of the fault fracture zone is achieved, and the collapse risk and the support structure damage risk are effectively restrained.

The invention relates to the technical field of rock mass testing, in particular to a tunnel water-rich fault fracture zone area loading simulation test device and method.The tunnel water-rich fault fracture zone area loading simulation test device comprises a test box, and a partition plate is arranged in the test box; the partition plate divides the test box into a first area and a second area, and the second area is filled with a rock-soil sample; a lateral loading structure; a vertical loading structure; the simulated fault test structure comprises a mounting frame fixedly connected to the partition plate, a driving structure and a simulated fault unit, one end of the driving structure is hinged to the mounting frame, and the other end of the driving structure is connected with the simulated fault unit; the fault simulation unit is hinged to the mounting frame and used for simulating an adjustable fault, and the technical problems that an existing test device cannot dynamically adjust the fault fracture width and the dip angle according to the load effect and cannot perform real-time coupling simulation on a hydrological seepage field are solved.

The invention discloses a three-dimensional geological model dynamic updating system and method based on multi-modal data fusion, and belongs to the technical field of geological engineering and information. According to the method, multi-source data of geological radar, earthquake, drilling, remote sensing and the like are integrated, and after unified formatting and quality optimization preprocessing, geological features of a stratum interface, a fault zone and the like are automatically extracted by using a deep learning network; multi-source feature data fusion is realized through space-time registration and attention; constructing a three-dimensional geologic model by adopting a TIN and Octree mixed structure based on a fusion result; dynamic updating of the model is realized through incremental detection and a local reconstruction mechanism, and the boundary of the model is optimized by adopting a radial basis function interpolation. According to the method, the problems of single data, updating lag and the like of a traditional method are solved, the modeling precision and efficiency are remarkably improved, and reliable support is provided for geological engineering decision making.

The invention discloses a stochastic finite fault source model establishment method, which comprises the following steps of S1, determining a geometrical shape of a seismic fault based on regional geological data and seismic monitoring data, and estimating a non-planar fault parameter and a fault plane average sliding amount in combination with historical data and an empirical formula; s2, estimating distribution and sliding strength of concave-convex bodies and obstacles on the fault surface according to historical seismic inversion data, and obtaining the sliding amount of each sub-fault by randomly disturbing the average sliding amount; s3, the discrete fault plane serves as a sub-fault unit, and after an initial fracture point and the average fracture speed are determined, random fracture initial time conforming to normal or power law distribution is generated based on a random number method; s4, calculating the seismic oscillation time history of each sub-fault by adopting a random point source method, superposing contributions, introducing the influence of a shallow velocity structure V30, and generating a three-dimensional seismic oscillation field; and S5, comparing actual strong earthquake record adjustment parameters, and outputting a multi-risk-level earthquake motion parameter evaluation result after iterative optimization. According to the method, by fusing randomness and empirical data, the simulation precision of the seismic source model on the uncertainty of the seismic process is improved, the influence of the potential maximum-magnitude earthquake possibly occurring in the active fault zone in the future can be effectively estimated, the seismic oscillation simulation precision and the calculation efficiency can be improved, and the method is suitable for engineering structure aseismic design and seismic disaster evaluation.

The invention discloses a rock hydraulics-based high-position separation water monitoring and drainage control method, which comprises the following steps of: determining a separation water development position according to an early-stage exploration result; a monitoring drill hole and a drainage drill hole which are communicated with the separation water are constructed on the ground surface above the development position of the separation water; a water pressure sensor is arranged at the bottom in the monitoring drill hole; a water suction pump is arranged in the drainage drill hole; a plurality of micro-seismic sensors are arranged in a roof rock stratum of the working face at set intervals, and the development height of the water flowing fractured zone is determined according to micro-seismic signals collected by the micro-seismic sensors; determining the thickness of a separation layer water-resisting layer according to the development height of the water flowing fractured zone; determining an abscission water warning water head according to the thickness of the abscission water water-resisting layer; determining a warning water level according to the separation water warning water head and the separation water bottom plate elevation obtained through early-stage exploration, and setting the determined separation water warning water level as an early warning water level; the water level data in the monitoring drill hole are collected in real time, the real-time water level is obtained, when the real-time water head exceeds the early warning water level, the water suction pump is started to pump separation water, and separation water level control is achieved.

The invention belongs to the technical field of geological disaster monitoring, and discloses an automatic geological disaster monitoring device and monitoring method. The method comprises the following steps: completing joint monitoring of surface goaf deformation on the ground; for a bent sinking zone, a fissure zone and a caving zone of the goaf, an electrical method system, a micro-seismic monitoring system and a distributed optical fiber sensor are arranged underground, dynamic tracking and monitoring of underground resistivity, fissure zone expansion, caving zone rock mass breaking change and the boundary of the goaf are conducted respectively, and delineation of underground abnormal bodies is completed; and cooperative monitoring: completing cooperative dynamic coupling monitoring of deformation processes of the curved sinking zone, the fissure zone and the caving zone of the goaf. According to the method, the accurate delineation of the underground abnormal body is completed; and dynamic coupling monitoring of ground and underground deformation of the coal mine goaf is realized.

The invention discloses a tunnel rock-soil deformation identification method and system, relates to the technical field of tunnel and underground engineering monitoring and early warning, and remarkably improves the reliability and timeliness of tunnel weak surrounding rock deformation risk identification. In the abrupt change response link, a time domain convolutional network and a displacement acceleration self-adaptive strengthening mechanism are introduced, so that the capturing capability of the system on nonlinear displacement surge is improved in a leap-over manner; according to the method, the acceleration component is focused and the physical constraint weight is applied, so that the sudden change event is locked in real time, and accidents such as unstability of the tunnel face are prevented from being missed in report; in order to solve the problem of point cloud registration distortion of a joint development area, the geological law of a rock mass structural plane is fused into a registration algorithm, and overall deformation misjudgment caused by rock mass local dislocation is inhibited from the source through a Gaussian mixture model coupling normal elastic deformation threshold and a tangential coulomb friction criterion; the measurement precision of laser scanning in a fracture zone and a fault zone breaks through environmental limitation, and a reliable basis is provided for supporting decision.

The invention discloses a method for selecting a post-mining grouting position for thick-layer roof sandstone water disasters. The method comprises the following steps: (1) finely probing a geologic body of a to-be-grouted area; (2) representing the development degree of the native fracture and the water inflow based on a water inflow observation result in the working face pushing and mining process in combination with the development degree of the native fracture, and evaluating the development condition of the water guide channel of the working face; (3) predicting the development height of the water flowing fractured zone; (4) selecting a grouting layer position; and (5) selecting a grouting position. The method disclosed by the invention has the following beneficial effects: 1, fine exploration work is carried out, comprehensive and accurate cognition of geological conditions is realized, and a foundation is built for subsequent work; 2, the grouting layer position and the plane position are selected scientifically and reasonably, blind selection is effectively avoided, and the water control and roof reinforcement effects are guaranteed; errors and waste are reduced, and construction efficiency and quality are improved.

The invention relates to the technical field of gas reservoir geology evaluation and exploration through earthquake three-dimensional data, in particular to a model and method for predicting rock stratum natural gas development potential based on earthquake three-dimensional data. The method comprises the following steps of: obtaining fault displacement and fault zone width, normalizing data to obtain strike-slip fracture deformation strength S, and predicting rock stratum natural gas development potential according to the strike-slip fracture deformation strength S, so that quantitative correlation between strike-slip fracture structure characteristics and natural gas yield is realized. The fracture reservoir control effect can be converted into a quantifiable evaluation standard from experience judgment, and meanwhile reference is provided for complex structure zone fracture reservoir control research.

The invention discloses a key layer presplitting settlement control method based on overlying strata fracture angle arrangement. The method comprises the steps that geological mining parameters of a target mine are collected and determined; based on the physical and mechanical parameters of each rock stratum, determining the horizon height of the key stratum in combination with a thick and hard rock stratum judgment criterion; according to coal seam mining parameters and overlying strata lithology, the height of a water flowing fractured zone is judged, and high and low horizon classification is conducted on the water flowing fractured zone by combining the horizon of the key horizon; according to the development law of overlying strata damage along the fracture angle from bottom to top, the presplitting position in the horizontal direction of each layer key layer in the presplitting range is calculated and determined, and full-section directional presplitting cutting is carried out; based on thick and hard rock stratum mining-induced stress distribution characteristics and a damage deformation transmission mechanism, a working face moving boundary and a reduction distance of a building (structure) protection coal pillar after key stratum presplitting are calculated and determined. According to the method, presplitting implementation is guided based on the key layer fracture rule, and a new technical approach is provided for subsidence control of the mining area.

The invention provides a real-time early warning method and system for the jamming risk of an open-type TBM crossing fault fracture zone, and relates to the technical field of data processing.The method comprises the steps that an analysis area is constructed with three fixed stress monitoring points as vertexes, and a circumcircle of the analysis area is calculated; defining a circular analysis area according to the circumcircle, and performing fan-shaped partitioning on the circular analysis area to obtain a plurality of fan-shaped analysis units; according to the stress change rate data of each fan-shaped analysis unit, combining the corresponding fan-shaped area to determine a weight coefficient, and determining a dynamic adjustment value; calibrating the tunneling parameter by using the dynamic adjustment value to obtain a calibrated tunneling parameter; and according to the calibrated tunneling parameters, risk grade comprehensive evaluation is carried out in combination with surrounding rock lithology, joint development conditions and water inflow data revealed by excavation, and grading early warning signals are generated. According to the invention, early warning of the fault fracture zone jamming risk can be realized.

The invention provides a comprehensive advanced geological forecasting method for an ultra-deep vertical shaft of a metal mine, and belongs to the technical field of water prevention and control in construction of the ultra-deep vertical shaft of the metal mine. The conditions that a tectonic fracture zone, a high confined aquifer and the like possibly exist in the deep stratum, have construction hidden dangers and are prone to causing water burst disasters are accurately recognized, and the advanced detection precision of the deep stratum of the shaft is improved; meanwhile, a feedback forecasting process of geological analysis-geological modeling-geophysical prospecting circle target-drilling verification is formed, a multi-level verification system is constructed, the specific geological condition of an abnormal area is clearly detected, and the advanced positioning and judgment accuracy of a geological abnormal body in a deep stratum is remarkably improved; and by integrating and fusing multi-source geological information, the geological abnormal body information is comprehensively analyzed and judged, so that the requirements of deep rock mass mechanical property analysis and water inrush disaster prevention and control are met.

The invention relates to a method for simulating a complex earthquake load in a triaxial test, and belongs to the field of geotechnical engineering indoor test methods. The invention mainly overcomes the defects in the prior art, and provides a simulation method for complex earthquake load in a triaxial test, which comprises the following steps: acquiring a near-field strong earthquake record, and carrying out baseline correction and filtering processing on the near-field strong earthquake record; decomposing and synthesizing the near-field strong earthquake record; performing time-history conversion on the near-field strong earthquake record, and determining experimental parameters; preparing a soil-rock mixture sample, and saturating the sample; performing an indoor triaxial test on the saturated sample according to the determined experimental parameters; calculating the correlation between the input waveform and the output waveform according to the test result; and analyzing typical dynamic characteristics of the soil-rock aggregate under the action of the near-field strong earthquake according to a test result. The invention provides a method for analyzing test data under the action of earthquake load, and provides an indoor triaxial test method for carrying out research on dynamic characteristics of a rock-soil body by near-field strong shock of an active fault zone.

The invention provides an earthquake risk assessment method and system for a medium-strong earthquake region, and belongs to the technical field of earthquake risk assessment, and the method comprises the steps: carrying out the partitioning construction of an earthquake region, and obtaining a plurality of structural regions; fitting data of historical earthquakes and modern small and medium earthquakes in each structural area to obtain an earthquake magnitude-frequency relational expression, and calculating to obtain an incidence rate, an earthquake generation probability and a recurrence interval of any level of earthquake in each structural area; and for each structural area, a spatial smoothing method is used to distribute weights such as the occurrence rate, the earthquake generation probability and the recurrence interval of any grade of earthquake in each earthquake grade, and the like, to each fault zone. According to the method, the seismic activity model is established by using the spatial smoothing method, after smoothing processing, the earthquake risk is generally improved and is close to the historical earthquake occurrence situation, and for the areas with unclear earthquake-generating structures and weak seismic activities, the earthquake with large energy release occupies a more important position in distribution, so that the seismic activity is improved. And the potential danger of the earthquake activity can be reflected more accurately.

The invention relates to a geological fracture recognition method based on multi-source geophysical data and a computer system, and solves the problem of high-precision recognition of tiny fractures and complex fracture zones. The method comprises the following steps: acquiring gravitational field model data, full-tensor gravity gradient data and aeromagnetic data of a target area, and carrying out gridding processing, pole conversion processing and edge expansion preprocessing on the data; performing boundary identification calculation on the preprocessed data by adopting a traditional physical field multi-derivative algorithm to generate a first group of boundary information A; carrying out boundary recognition calculation on the preprocessed data by adopting a gravity and full-tensor gravity gradient combined derivative algorithm (an enhanced total horizontal gradient derivative algorithm, a combined derivative algorithm and a combined oblique derivative algorithm) to generate a second group of boundary information B, and carrying out boundary recognition calculation on the preprocessed data by adopting an image edge detection algorithm to generate a second group of boundary information B; generating a third group of boundary information C; and carrying out weighted fusion on the three groups of boundary information to obtain a final fracture identification result.

The invention provides a fault zone three-dimensional structure style identification method and system. The identification method comprises the following steps: S1, collecting seismic profile and horizon data of a research area; s2, fault geometric configuration relations of different structural areas are identified; s3, analyzing section combination features of the fault, and judging and identifying a plane combination pattern of the fault in combination with plane distribution features of the fault; and S4, performing three-dimensional view analysis on the section, and judging the three-dimensional structure style of the fault zone. The growth process and the connection mode of the local boundary fault are comprehensively researched through high-precision closed interpretation of the three-dimensional section and the horizon of the boundary fault, and the defect of a two-dimensional view angle is overcome.

The invention discloses a deep strike-slip fracture fracture zone identification method, and the method comprises the steps: converting original seismic data into a frequency-wavenumber domain through Fourier transform, carrying out the multi-scale decomposition and downsampling through a radial filter cascade architecture, converting the data into a time-space domain through a directional basis filter, and carrying out the filtering. And acquiring an optimal direction by adopting an optimization strategy, and constructing characterization attributes based on neighborhood attribute differences to extract multi-scale fracture attributes. And introducing a plurality of level set functions to construct an energy functional model, and solving through a dynamic weight adjustment algorithm to realize internal and external band identification. And constructing a model by means of a topological relation based on distance-angle constraint to analyze the three-dimensional space topology. The problems that traditional data processing is not fine and model analysis is insufficient are solved, accurate recognition of the deep strike-slip fracture fracture zone is achieved, and the method has important application value in the fields of oil and gas exploration and development and the like.

The invention discloses a dynamic regulation and control method and a control system for tunneling and grouting reinforcement of a water-rich layered surrounding rock tunnel. The method comprises the following steps: acquiring bedding surface occurrence, water pressure, fault fracture zone, water seepage area distribution and other data by adopting advanced geological detection; in a layered surrounding rock section, grouting areas are divided according to a bedding dip angle, high-pressure splitting grouting is adopted in a bedding area, and permeation grouting is adopted in a cutting area; in the fault fracture section, fault fracture zone grouting areas are divided according to the fault width and the stratum condition, and anchor rods with different depths are adopted for grouting; the ratio of the nano-composite grout is dynamically adjusted based on the real-time water pressure of each grouting area; the grouting pressure and flow are dynamically adjusted through the intelligent adjusting and controlling system; and a transient electromagnetic method is adopted to evaluate the grouting effect, and secondary grouting is carried out to achieve reinforcement. The grouting parameters can be dynamically adjusted and controlled according to the bedding surface condition during grouting.

The invention relates to the technical field of geological exploration, in particular to an X-ray fluorescence spectrometer and geological radar combined gold vein rapid positioning method, which comprises the following steps: S1, arranging an exploration survey line in a pre-selected exploration area; s2, along the same measuring line, measuring the content of the gold mineralization indication element in the earth surface or the shallow medium by using an X-ray fluorescence spectrometer, synchronously recording the position information of a measuring point, and generating element content spatial distribution data; the gold mineralization indicating element comprises at least one of arsenic As, antimony Sb and mercury Hg; s3, carrying out detection by using a geological radar along the same measuring line, obtaining a reflected wave signal of an underground medium, synchronously recording position information of a detection point, identifying fault zone and joint zone geological structure anomalous bodies through data processing, and generating geological radar space distribution data; through XRF and GPR data fusion, a CAI quantitative model is established to precisely delineate an ore prospecting target area, a hidden ore body is effectively identified, the exploration precision and efficiency are greatly improved, and the exploration cost is reduced.

The invention relates to the technical field of tunnel engineering geological disaster prevention and control, in particular to a tunnel construction safety control method based on compression-torsion fault classification. Comprising the following steps: S100: according to engineering geological characteristics, dividing a compression-torsion fault into an anhydrous broken type: a fault broken zone is mainly fault rubble, the water yield is poor, and the risk is collapse and chipping; for the water inrush type, the fault fracture zone is high in water-rich property, and the risk is an inrush accident; according to the water quantity change type, one disc of the fault is a water-resisting layer, the other disc of the fault is a water-permeable layer, and the construction risk changes along with the construction direction; s200, the type of the compression-torsion fault is identified on site according to the characteristics of the tunnel face of the compression-torsion fault; s300, according to the fault classification result in the step S100 and the field identification type in the step S200, selecting a matched advanced forecasting method to carry out advanced geological forecasting; and S400, construction protection is conducted according to the different types of compression-torsion faults. According to the method, the corresponding construction measures are formulated by identifying the type of the compression-torsion fault, the construction risk is effectively reduced, and the tunnel construction safety is ensured.

The invention discloses a slope monitoring method and system based on an unmanned aerial vehicle, and relates to the technical field of intelligent geological disaster monitoring, and the method comprises the steps: carrying a magnetic gradient measurement unit and a laser radar through the unmanned aerial vehicle, and collecting magnetic gradient tensor collection and slope surface point cloud from multiple heights and multiple routes; on the basis of a gradient adaptive weighted total variation inversion method, slope gradient information extracted by a digital elevation model is introduced into regularization weight adjustment, so that an inversion result can be adaptively adjusted in different gradient areas; based on a magnetic susceptibility distribution model, a magnetic construction adaptive clustering and risk index calculation method is used, and through amplitude density index and gradient constraint search, clustering identification and risk quantitative partitioning of a high-gradient accumulation area are carried out. Therefore, expansion from surface slope deformation monitoring to deep concealed structure detection is realized, and concealed slip zones or fissure zones can be accurately revealed under complex terrain conditions.

The invention relates to an open-type TBM tunnel fault fracture zone in-hole parallel advanced detection and treatment integrated treatment method which comprises the following steps: determining the position of a fault fracture zone in front of a tunnel according to a geological survey report, and calculating the TBM tunnel face mileage; ear holes are excavated in the side walls of the two sides of the tunnel in the TBM equipment bridge area; directional drilling machines are arranged in the lug holes in the two sides, and arc drilling is adopted to reach the fault fracture zone in front of the tunnel face of the tunnel; advanced detection is carried out in the directional drilling process; when it is judged that the risk that the broken zone surrounding rock in front of the TBM collapses and consequently the TBM gets stuck exists, consolidation grouting is conducted on the tunnel arch surrounding rock; when it is judged that the sudden gushing risk exists, curtain grouting is conducted on surrounding rock around the tunnel; and after grouting is completed, the grouting effect is tested. Advanced detection and pre-reinforcement treatment are integrated in the same construction process, a continuous operation system of sensing while drilling-intelligent identification-synchronous disposal is constructed, and seamless connection of geological risk advanced identification and engineering disposal is achieved.

The present invention belongs to the technical field of oil and gas field exploration and development, and discloses a seismic identification method and system for the internal structure of a small-scale, low-order fault zone, wherein the method includes: determining a seismic frequency fraction of a target layer segment based on geological data; determining a tuning frequency fraction of a main component of a small fault and a background frequency fraction of a small fault based on the seismic frequency fraction of the target layer segment; performing breakpoint sharpening on the tuning frequency fraction of the main component of the small fault to obtain seismic amplitude data after breakpoint sharpening; merging the small fault background frequency fraction and the seismic amplitude data after breakpoint sharpening to obtain a fused data volume; and determining the internal structure of the fault zone based on the fused data volume. The present invention takes into account the internal structure of a small fault zone and its seismic reflection characteristics, introduces breakpoint sharpening for the first time, and strengthens the longitudinal continuity characteristics of the small fault. The present invention can improve the recognition accuracy of small faults on seismic data, and the reflected small fault structure is more certain.

The invention belongs to the technical field of exploration and development of fault block oil and gas reservoirs, and particularly relates to a seismic prediction method and system for igneous rock intrusive fault zone sealing performance, and the method comprises the steps: determining the seismic attribute and seismic frequency attribute of a highlight body of a target interval according to petroleum seismic exploration data; determining magma invasion characteristic parameters according to the seismic attribute and the seismic frequency attribute of the highlight body, and determining fracture characteristic parameters of the fracture zone according to an eigenvalue characteristic algorithm operation result in the third-generation coherent attribute of the seismic data; determining an internal structure index of the intrusive fault zone according to the magma invasion characteristic parameters and the fracture characteristic parameters of the fault zone; and comparing the internal structure index of the intrusive fault zone with a closed lower limit threshold of the internal structure index of the known oil reservoir fault zone, and predicting the fault zone closure and the closure capability thereof according to a comparison result, thereby realizing quantitative determination of the oil and gas migration and dredging capability of the fault with magma invasion in the clastic rock stratum.

The invention provides a roof-based subsidence monitoring method for a middle-deep underground mining mine, which comprises the following steps: S1, a deep anchor type anchoring datum point is arranged in a stable rock mass, far away from a mining disturbance area, of a mine roadway or a goaf, and the depth of the deep anchor type anchoring datum point needs to penetrate through a fissure zone and go deep into an original rock stress area; s2, a displacement sensor is installed at the key part of the top plate of the area to be monitored, and the displacement sensor is configured to take the deep anchor type anchoring datum point as a physical zero point; s3, acquiring a distance change original signal of the roof relative to the deep anchor type anchoring datum point through a displacement sensor, and directly acquiring roof subsidence data; and S4, performing signal noise reduction, anomaly detection, nonlinear feature analysis and parameter inversion on the roof subsidence data by using a computer system, and triggering an early warning mechanism when the roof is judged to be in an unstable state or a subsidence parameter exceeds a critical threshold. And an unstable bottom plate is fundamentally abandoned as a measurement basis, and the authenticity and the accuracy of the subsidence data of the top plate are ensured.

The invention discloses a geological fracture zone double-shield TBM cross line changing construction method which comprises the following steps: on the basis of detailed investigation and design investigation, drilling and coring are performed on the outer edge of a tunnel structure along the longitudinal direction of a line by adopting a geological drill, development condition data of a geological structure fracture zone are obtained, and a PVC sleeve valve pipe is pre-embedded in a drilling and coring hole site; through the pre-buried PVC sleeve valve pipe, grouting reinforcement is conducted on the tunnel broken zone in an internal and external combined mode; a jamming early warning system is carried on the TBM, torque change is monitored, and TBM tunneling parameters are selected in combination with TBM equipment propulsion parameters; special structure pipe pieces with grouting holes and multiple ribs are installed and added in time in a preceding tunnel, and the self-stability and the external force deformation resisting capacity of surrounding rock are improved through grouting; a supporting trolley system is installed in the preceding tunnel; ground surface settlement, duct piece deformation and trolley stress and deformation are monitored in a mode of combining automatic monitoring and manual monitoring. The method is high in geological fracture zone reinforcing pertinence, surrounding rock fractures are fully filled, and the reinforcing effect is good.

The invention provides a drilling operation method adopting a pipe shed drilling machine, and belongs to the technical field of drilling operation of drilling machines. Initial positioning deviation is controlled through three-dimensional positioning calibration of a guide pipe and a space stabilization structure, drilling track deviation correction is achieved through real-time monitoring of a hole inclination angle and an eccentric drilling tool; the method comprises the following steps: dynamically adjusting drilling parameters according to a geological radar detection lithology type, establishing a slurry seepage diffusion fluid-solid coupling model to calculate a slurry diffusion radius and a filling rate, establishing a double-layer game optimization model to solve a Nash equilibrium point of grouting pressure and a slurry water-cement ratio, and adopting double-slurry pre-plugging combined with superfine cement reinforcement for a fracture zone. A drill rod and stratum interaction finite element model is established to recognize the dangerous section position, and a stabilizer or a thickened drill rod is additionally arranged, so that the technical problem that grouting reinforcement parameters and drilling track control precision are difficult to optimize synchronously in the pipe shed drilling process is solved.