478 results about "Structural plane" patented technology

The invention relates to the technical field of geological disaster prevention and control, in particular to a rock engineering slope stability classification method. According to the technical scheme, the method comprises the following steps: obtaining spatial distribution characteristics of a slope structural plane through combined detection of three-dimensional laser scanning and a geological radar, and establishing a quantitative index system containing occurrence, density and connectivity of the structural plane; the method comprises the following steps: acquiring a fracture signal in a slope in real time by adopting a micro-seismic monitoring system, and extracting a micro-seismic event energy release rate, a dominant frequency offset and a seismic source mechanism parameter through time-frequency analysis; and constructing a geologic structure evolution inversion model, reconstructing a geologic structure evolution process based on the regional geologic database and the field drilling data, and calculating the distribution characteristics of the residual stress field of the structure. According to the method, comprehensive, accurate and real-time monitoring and classified evaluation of the rock engineering slope stability are realized, potential risks can be effectively predicted, a scientific and accurate decision basis is provided for slope support and treatment, and the safety and stability of the rock engineering slope are greatly guaranteed.

The present invention relates to the technical field of tunnel rockburst microseismic monitoring, and provides a strain-structural plane slip-type rockburst failure mechanism analysis method for a drill-and-blast method tunnel. The present invention collects strain-structural plane slip-type rockburst microseismic data during tunnel construction; in light of engineering geological survey data, performs microseismic monitoring and data analysis on strain-structural plane slip-type rockburst that has occurred in a tunnel, divides a strain-structural plane slip-type rockburst risk area, and determines a microseismic rockburst early warning area; and, by means of these data, deeply understands a microseismic activity law of strain-structural plane slip-type rockburst of deep-buried drill-and-blast method tunnels, discriminates respective functions of tensioning and shearing in rock failure processes, comprehensively analyzes the failure mechanism of strain-structural plane slip-type rockburst, and further obtains the failure mechanism of strain-structural plane slip-type rockburst of the deep-buried drill-and-blast method tunnels, providing an important theoretical basis for predicting and preventing rockburst disasters.

The invention provides a deep geologic body occurrence characteristic quantitative representation modeling method and system, and the model focuses on the multi-physics field occurrence environment of rock mass material composition, structural characteristics, stress distribution and the like under the continuous mining condition of a deep underground metal mine. An information expression framework capable of crossing a'microcosmic-experimental-engineering 'multi-level spatial scale is constructed, microcosmic rock core mineral components and crack information, laboratory mechanical response parameters and structural surface shear characteristics and macroscopic fault system and stress disturbance data reflected by microseismic events are introduced, a heterogeneous data fusion method is comprehensively applied, and a microcosmic-experimental-engineering multi-level spatial scale is constructed. A three-dimensional tensor model with dynamic evolution capability and physical interpretation capability is established, high-precision, dynamic and multi-scale comprehensive modeling of a complex deep geologic body occurrence environment is realized, and the model has the characteristics of clear information hierarchy, high fusion precision, strong physical interpretability and the like. And dynamic perception and scientific research and judgment of geologic mass mechanics and structure states can be realized in a complex deep environment.

The invention relates to the technical field of mine safety monitoring, and discloses a roadway surrounding rock stability evaluation method, which comprises the following steps: step 1, collecting roadway surrounding rock geological data, step 2, constructing a three-dimensional geomechanical model, step 3, inverting mechanical parameters, step 4, calculating a stability coefficient, and step 5, outputting an evaluation result. According to the method, rock mass types, structural plane occurrence, crustal stress vectors and permeability parameters are integrally collected through geological radar scanning, drilling coring and crustal stress measuring devices, the problem of model distortion caused by single data in a traditional method is solved, deformation of a stress concentration area is accurately captured by adopting a non-uniform grid division strategy, inversion mechanical parameters are combined, and the method is suitable for large-scale popularization and application. The network is trained by using in-situ direct shear and triaxial test data, the inversion efficiency is improved compared with manual trial and error, the whole surrounding rock fracture process is simulated based on a finite element-discrete element coupling algorithm, plastic zone distribution and a comprehensive index S are output, and automatic judgment of the stability level is realized.

The invention belongs to the technical field of three-dimensional simulation, and particularly provides a rock mass structural plane network simulation method fusing artificial intelligence and laser scanning, and the method comprises the steps: obtaining point cloud data; clustering the point cloud data by adopting a clustering algorithm to obtain an original structural surface; performing statistical analysis on the original structural plane according to the rock mass type and the structural partition to obtain a representative structural plane, and fitting to obtain a probability density function according to occurrence parameters of the representative structural plane; according to the development volume density of the representative structural plane, converting the probability density function into a volume density function, and according to the volume density function, generating a random structural plane by using a Monte Carlo simulation method; and constructing a BIM model of the rock mass structure, and performing three-dimensional space simulation on the rock mass structural plane network based on the BIM model and the random structural plane to obtain a simulation result. According to the method, the precision, comprehensiveness and authenticity of depicting the rock mass structural plane are greatly improved, and the spatial distribution characteristics of the structural plane network can be quantitatively evaluated.

The invention discloses a spatial registration method for tunnel multi-source heterogeneous data, and the method comprises the steps: constructing a lightweight digital twinborn model based on a design parameter library, a construction log library and a real-time monitoring library; mapping the multi-source sensor data in the real-time monitoring library to a digital twin model space node through a space-time synchronization algorithm; probability distribution model-based abnormal value elimination is performed on the geological exploration data, the while-drilling parameters and the geological sketch, and a discrete smooth interpolation algorithm is adopted to generate a surrounding rock mechanical parameter three-dimensional distribution field; the surrounding rock mechanical parameter three-dimensional distribution field serves as input, and front surrounding rock classification probability distribution is dynamically predicted through a machine learning model optimized through transfer learning; based on the three-dimensional point cloud data of the tunnel face in the digital twin model, extracting geometric parameters of the structural plane and constructing a fracture network model constrained by a normal vector; according to the method, the surrounding rock risk location is accurately positioned based on double-threshold triggering, and multi-scale model seamless fusion is realized through gradient constraint topology fusion.

The invention relates to the technical field of mining, and discloses a method for determining pre-splitting blasting parameters for mining blasting, which comprises the following steps of: 1, acquiring rock mass structure information of a blasting area through three-dimensional geological radar, laser radar and shallow seismic reflection data, and constructing a structural plane distribution map containing a soft and hard interbed and joint combination mode; 2, initial presplitting blasting parameters are generated based on the structural plane distribution map, wherein the initial presplitting blasting parameters comprise the hole distance, the linear charge density and the charge structure; according to the method, the technical scheme that the structural plane distribution map is constructed through multi-source geological data fusion and digital twinborn simulation dynamic correction is adopted, so that the technical effects that the influence of a complex structure combination on blasting energy transfer is accurately quantified, and the presplitting path control precision is remarkably improved are achieved; compared with the technical scheme depending on a static rock mass model or an empirical formula in the prior art, the defects of presplitting path offset and serious parameter mismatch caused by the fact that modeling is not carried out due to the dynamic effect of the structural plane are overcome.

The invention discloses a spherical crown dome horizontal circumference drilling and blasting parameter model optimization construction method, and the method comprises the steps: collecting geological, crustal stress, hydrological and structural plane data, building a three-dimensional geological information model, carrying out the working condition partitioning based on a surrounding rock quality evaluation index, and constructing a parameter probability distribution model and an uncertainty boundary of each partition. Therefore, precise space description and parameter variability quantification of the spherical crown dome construction area are realized. The method comprises the following steps: establishing a three-dimensional numerical model of a cavern group, integrating blasting power, seepage and stress multi-physical field effects by adopting a finite element-discrete element coupling method, introducing a surrounding rock deterioration constitutive model considering cumulative damage and unloading aging, calibrating key parameters through an indoor test and field trial explosion, and establishing a three-dimensional model of the cavern group. And the numerical model can truly reflect the mechanical property degradation track of the surrounding rock under repeated blasting disturbance.

The invention provides an automatic identification method and system for a linear structural plane in a complex rock mass outcrop, and belongs to the field of rock mass engineering, and the method comprises the steps: obtaining a DeepLabV3 + model of a rock mass outcrop image, carrying out the semantic segmentation of an input image, outputting a binary mask image of the trace pixel of the structural plane, and carrying out the topology reconstruction; establishing a mapping relation between the image coordinate system and the three-dimensional point cloud; calculating a space included angle between the direction vector of the trace and the average occurrence of the structural plane groups, classifying the three-dimensional point cloud data according to the structural plane groups according to an angle threshold value, and performing three-dimensional line segment extraction by adopting an improved iterative Hough transform algorithm; and realizing global multi-segment connection and trace length calculation of discrete segments based on a greedy algorithm. The method breaks through the limitation of a topographic region when the rock mass structural plane data is obtained through manual measurement, and improves the precision and efficiency of structural plane extraction in the complex rock mass.

Provided is a method for judging geology of a time-delayed extremely intense rockburst as to deep tunnel engineering. Information about geological structures is recorded according to methods such as geological mapping and advanced geological prediction of the tunnel face. Geometric characteristics of burst craters formed during the rockburst are recorded by utilizing advanced geological drilling and profile scanning technologies in a rockburst-damaged zone. 3D geostress in the rockburst-damaged zone is measured by using a stress relief method or a hydraulic fracturing method to determine the orientation of the maximum principal stress. A 3D numerical calculation model is established based on initial geostress testing results and physical and mechanical parameters of rock and structural discontinuities obtained through on-site geological investigations. By conducting excavation simulations under different combinations of structural discontinuities and performing numerical calculation, the risk of time-delayed extremely intense rockburst disasters at current locations after tunnel excavation is judged.

The invention provides a simulation method and system for mechanical parameter prediction of a rock mass structural plane of a base-covering interface, and relates to the technical field of geological survey, and the simulation method specifically comprises the following steps: collecting environmental parameters and material parameters, and calculating a physical influence index, an environmental adaptability index and a fracture stability index; performing a dynamic load test on the rock mass to obtain dynamic response data of the rock mass, constructing a structural anti-seismic prediction model according to a physical influence index, an environmental adaptability index, a fracture stability index and a dynamic response index, and generating a weight in the model through an analytic hierarchy process, and utilizing the structure anti-seismic prediction model to generate a structure anti-seismic index of the base-covering interface rock mass structure. According to the scheme, the mechanical characteristics of the rock mass can be comprehensively reflected, and the influence of environmental change on the rock mass performance is effectively considered, so that the scientificity of anti-seismic performance prediction is improved.

The invention records a roadway surrounding rock fracture morphology measurement method, which comprises the following steps of S1, installing a photogrammetry device in a roadway, and obtaining a continuous digital image of a roadway surrounding rock area to be measured; s2, carrying out image acquisition on the structural surface of the surrounding rock of the roadway to obtain a color original image, and converting the color original image into a grayscale image; s3, dividing the grayscale image into a plurality of local areas, establishing a grayscale histogram of the local areas, and equalizing the grayscale histogram of the local areas to form an enhanced grayscale image; s4, performing adaptive gamma correction on the enhanced grayscale image; s5, smoothing the enhanced grayscale image by using a median filter; s6, using a Sobel operator to carry out crack contour extraction on the enhanced grayscale image; and S7, calculating to obtain the real length, the real width and the crack inclination angle of the tunnel surrounding rock structural surface crack. According to the invention, safe, direct, efficient and accurate acquisition of the surrounding rock fracture image of the coal mine tunnel and rapid identification and extraction of surrounding rock fracture parameters can be realized.

The invention provides a rock mass structural surface fluctuation degree identification and evaluation method based on three-dimensional laser scanning, and the method comprises the following steps: S1, carrying out the three-dimensional laser scanning of a set rock mass measurement range through a three-dimensional laser scanner, and obtaining the point cloud of a rock mass in a designated region; s2, preprocessing the point clouds to obtain a point cloud set, screening boundary point clouds from the point cloud set, and fitting a structural surface by using the boundary point clouds; s3, calculating and marking the undulation degree of each structural surface; and S4, evaluating the stability of the rock mass according to the undulation degree of each structural surface. According to the method, the stability degree of the rock mass can be further determined by judging the rock mass structural surface, the fluctuation condition of the structural surface and the feature recognition efficiency of the rock mass structural surface.

The invention discloses a multi-factor coupling action slope dangerous rock mass instability starting speed determination method which comprises the following steps: establishing a dangerous rock mass generalization mechanical model, simplifying a dangerous rock mass main control structural plane into two parts, namely a through section and a non-through main control structural plane, and controlling dangerous rock mass instability damage by a rock mass corresponding to the dangerous rock mass main control structural plane; carrying out stress analysis on the dangerous rock mass and the locking section rock mass based on the external load effect and the generalized mechanical model of the dangerous rock mass; the external load effect comprises horizontal and vertical earthquake force, frost heaving force, fracture water pressure or excess pore water pressure; determining elastic strain energy released by potential energy reduction in crack propagation of the main control structural plane of the dangerous rock mass based on a multi-factor coupling effect; and on the basis of the assumption that elastic strain energy released by reduction of potential energy in crack propagation of the main control structural plane of the dangerous rock mass is instantaneously released and converted into kinetic energy of dangerous rock mass movement, the instability starting speed of slope dangerous rock mass severe movement under the multi-factor coupling effect is determined. The invention further discloses a system, electronic equipment and a computer readable storage medium.

The invention belongs to the technical field of intelligent detection, and particularly discloses an underground engineering intelligent anchor detection system and method.The system comprises a movable chassis, an automatic continuous drilling subsystem arranged on the movable chassis, an automatic monitoring subsystem and a data analysis subsystem, and the automatic monitoring subsystem and the data analysis subsystem are arranged on the automatic continuous drilling subsystem; the automatic continuous drilling subsystem comprises a mechanical large arm connected with the movable chassis, a rotating platform connected to the tail end of the mechanical large arm, and a drilling unit connected with the rotating platform; the automatic monitoring subsystem is used for monitoring while-drilling parameters in the drilling process in real time and transmitting the while-drilling parameters to the data analysis subsystem. The data analysis subsystem inverts rock mass strength parameters and rock mass structural plane characteristics in real time based on a rock mass strength inversion model and a structural plane inversion model, and quantitative evaluation of surrounding rock in the drilling process is achieved, so that a surrounding rock broken area is anchored in time. According to the invention, in-situ detection of deep underground engineering, especially deep mines, can be realized.

The invention discloses a rock mass structural surface three-dimensional failure criterion considering a lateral stress effect and a construction method thereof. The construction process comprises the following steps: S1, carrying out a true triaxial shear test to determine peak strength of a rock mass structural surface under the combination of different normal stress sigma n and different lateral stress sigma p; s2, obtaining a shear peak strength change rule under the action of different normal stresses sigma n under true triaxial, and constructing a shear peak strength function F1 (sigma n) of the rock mass structural plane; s3, obtaining a shear peak strength change rule under the action of different lateral stresses sigma p under true triaxial, and constructing a shear peak strength function F2 (sigma p) of the rock mass structural plane; s4, constructing a shear peak intensity function F3 (sigma n, sigma p) in a three-dimensional stress state, and determining an envelope surface form of the shear peak intensity function; and S5, carrying out true triaxial shear tests on the rock mass structural surfaces with different lithology, verifying and perfecting a shear peak strength function F (sigma n, sigma p) in a three-dimensional stress state, and constructing a rock mass structural surface three-dimensional failure criterion considering the lateral stress effect.

The invention relates to the technical field of underground engineering tunnel face information extraction, and discloses an information extraction method for an underground engineering tunnel face rock mass structural plane, and the method comprises the steps: extracting the normal vector of each point from the original point cloud data of the underground engineering tunnel face rock mass structural plane, inputting the converted normal vector into a BIRCH algorithm for clustering to obtain a dominant structural plane category; taking the types of the dominant structural surfaces as input, executing a DBSCAN algorithm on the point cloud of each type of dominant structural surfaces, and segmenting the dominant structural surfaces into independent structural surfaces; performing plane fitting on the independent structural plane by using an RANSAC algorithm to obtain a plane fitting equation, and calculating an inclination angle and an inclination direction of the structural plane according to the plane fitting equation; according to the method, point cloud data provides a rich information source for rock mass structure analysis, an independent structural plane is accurately recognized, and tunnel face rock mass structural plane information is reasonably extracted.

The invention discloses a seismic source inversion and clustering reconstruction integrated unstable structural plane identification method and system, and the method comprises the following steps: obtaining original sound wave data, carrying out the positioning calculation and seismic source mechanism inversion of the original sound wave data, and obtaining coal rock fracture source core parameters directly related to fracture; calculating a fracture penetration possibility index BCI in combination with the standardized fracture volume, the seismic source radius and the spatial distance; the similarity between the fractures is calculated according to the multi-dimensional features of the fractures, and density clustering is conducted on the fractures through a DBSCAN clustering algorithm; by calculating a fracture and penetration possibility index value on each fracture cluster, the fractures with relatively high fracture and penetration possibility indexes are screened out, so that a potential instability surface is identified; generating a macroscopic instability surface by adopting a B-spline surface fitting algorithm; a control point is selected through a principal component analysis method to determine a fracture main direction, a B-spline curve is constructed based on fracture distribution to generate a boundary contour, and a B-spline algorithm is used for accurately fitting an unstable structural surface.

An intelligent recognition device for tunnel rupture and deformation and geological information based on borehole imaging, relating to the technical field of geological information survey. The device comprises an intelligent imaging probe and an intelligent imaging main unit, and the intelligent imaging probe is connected to the intelligent imaging main unit by means of a video cable. The intelligent imaging probe comprises a main body frame, a hole wall rock image acquisition module, a hole wall rock lithology recognition module, a structural plane characteristic extraction and calculation module, an infrared laser scanning and distance measuring module, an image signal transmission module and a video signal transmission module, and the intelligent imaging main unit comprises a main body frame, an image signal receiving module, a video signal receiving module, a data storage module, a data transmission module, a battery and a control module. The device can simultaneously monitor tunnel rupture and deformation conditions, and intelligently recognize the lithology and structural plane characteristics of hole wall rock, thereby saving a large amount of time for operators.

The invention discloses a structural plane network sequence modeling method and system suitable for layered rock mass, and relates to the technical field of rock mass engineering, and the method comprises the steps: obtaining layered rock mass outcrop data as basic data, and obtaining basic data interpretation representation after processing; determining a rock mass outcrop homogeneous region division result according to the type attribute of the basic data; according to the interpreted occurrence data in combination with a rock mass outcrop homogeneous region division result, correcting the occurrence data in each homogeneous region by using a weighting function, and grouping the structural surfaces by using a K-mean particle swarm algorithm to obtain grouped structural surfaces; determining the density of the distribution space of each group of structural surfaces according to the spacing, occurrence, size and survey line trend data of each group of structural surfaces; determining the position and size of a layer in the layer structure space according to the determined distribution position of the structural surface; and randomly combining parameters of each group of structural surfaces, and constructing a stratified rock mass structure spatial network model in combination with sequence modeling and Monte Carlo simulation methods.

The invention discloses a structural plane ring shear creep test method under real-time water pressure rise and fall and dry-wet cycle action, which comprises the following steps: S1, applying shear stress step by step to a preset peak strength ratio by adopting a constant normal stress and shear stress graded loading mode; s2, under the working condition of loading each stage of shear stress, performing dry-wet cycle and / or water pressure rising and falling cycle operation synchronously; s3, based on test data, analyzing creep deformation characteristics, long-term strength and failure rules of the structural plane; the device synchronously simulates reservoir water level rising and falling and dry-wet circulation in a ring shear creep test, and can be applied to long-term stability prediction and control measure optimization design of reservoir bank rock slopes and other rock shear tests needing to simulate water pressure change and dry-wet circulation conditions.

The invention discloses a method for constructing a shear constitutive model of a discontinuous structural plane. The method comprises the following steps: acquiring a peak value and a shear strength parameter in a residual stage; obtaining the initial rock mass shear strength tau of the discontinuous structural plane based on a Jennings criterion; introducing coefficients Xij and Xir to respectively adjust the normal stress at the joint and the rock bridge, and meanwhile, introducing a coefficient Omega to adjust the cohesive force of the rock bridge to obtain the rock mass shear strength tau of the adjusted discontinuous structural plane; based on a Lajtai rock bridge failure theory criterion, obtaining failure criteria of three discontinuous structural surfaces of tension, shearing and strength failure; and obtaining a shear constitutive model of the discontinuous structural surface corresponding to the rock bridge under the tension failure condition, the shear failure condition and the strength failure failure condition. According to the method, the shear constitutive model of the discontinuous structural plane is established, the shear behavior characteristics of the discontinuous structural plane can be effectively described, and the practicability of the constitutive model is effectively improved.

The invention provides a high and steep slope dangerous rock mass instability mode judgment method and system, and belongs to the field of rock mass engineering, dangerous rock mass point cloud data of a target area is obtained, neighborhood point searching is performed on point clouds at different positions of a slope according to coordinate information in the dangerous rock mass point cloud data, plane fitting and coplanarity testing are performed on neighborhood points, and a dangerous rock mass instability mode judgment result is obtained. And merging the coplanar point sets, and calculating to obtain the inclination and the inclination angle of the structural plane according to the point sets. And clustering and grouping the structural surfaces, fitting the structural surfaces and performing intersection calculation. Point-surface calculation and analysis are carried out by combining topographic features of the high and steep slope, geometric morphology of the rock mass and development conditions of structural surfaces, the dangerous rock mass is positioned, the damage mode of the dangerous rock mass is identified, the judgment accuracy is improved, the damage mode of the slope rock mass is finely divided, and disaster prevention and reduction work of rockfall disasters of the high and steep slope is facilitated.

The invention discloses an altered rock mass engineering geologic feature rapid identification method, and belongs to the technical field of engineering rock mass identification. Comprising the steps of obtaining topographic data of a rock mass feature region to be recognized, obtaining an earth surface plane model by fitting the topographic data, and generating a three-dimensional route based on the obtained earth surface plane model; controlling the unmanned aerial vehicle to fly close to the surface of the rock mass through the three-dimensional route, and shooting an image according to a preset position; performing data preprocessing on the shot image, performing image segmentation on the preprocessed image, and constructing a structural plane occurrence data set; and performing data processing based on the structural plane occurrence data set, and obtaining a rock mass feature recognition result through an FCM-WOA algorithm of structural plane occurrence automatic clustering and grouping. According to the method, the normal vector robust estimation method is optimized to improve the region growth efficiency and accuracy of the rock mass structural plane, the region growth algorithm is improved to optimize the initial structural plane recognition result, and the rock mass structural plane is quickly and accurately recognized from mass point cloud data of the rock mass outcrop.

The invention relates to the technical field of rock mass engineering, in particular to a soft rock structural surface permeation grouting evolution analysis method which comprises the following steps: performing a steady-state shear thinning inversion test on target slurry by using a rotational rheometer to obtain slurry performance parameters; a permeation grouting displacement test is conducted on the soft rock structural surface, and grouting parameters in the grouting process are obtained; determining grouting main section parameters of the soft rock structural surface, and constructing a grouting diffusion numerical value prediction model based on the grouting main section parameters; based on the slurry performance parameters, the grouting parameters and the grouting diffusion numerical value prediction model, establishing a simulation model of the target slurry; and performing test-simulation parameter comparison on the permeation grouting displacement test and the simulation model, and determining a grouting evolution characterization model for analyzing grouting flow pattern evolution and diffusion fluidization. According to the method, the accurate simulation model and the grouting evolution characterization model are established and optimized by combining actual measurement parameters in the test, so that the grouting process is optimized, and the engineering safety and economy are improved.

The invention provides a water bank slope structural surface rock mass shear creep test system and method under a dry-wet cycle, relates to the technical field of rock mechanical property test, and aims to accurately reproduce a dry-wet cycle-stress coupling working condition of a rock mass structural surface under a complex environment. In the device, the direct shear apparatus comprises a loading frame and a loading and sliding device mounted on the frame, and provides a stable mechanical loading basis for a test; the shear box is used for accommodating a rock sample containing a structural surface, and the lower shear box adopts a lengthened design, so that the shear area in the whole shear process can be ensured to be constant; the dry-wet cycle environment simulation cabin is fixed in the loading frame, hermetically wraps the shear box and is integrated with a water soaking subsystem and a drying subsystem, the water soaking subsystem can adjust the water level height and water pressure in the simulation cabin, and the drying subsystem can dry a rock sample, can reproduce the sun illumination radiation condition and is matched with the water soaking subsystem to realize periodic dry-wet cycle; and the coupling effect of dry-wet cycle and mechanical loading is realized.

The invention relates to the field of rock mass structural surface recognition, in particular to a high and steep slope rock mass structural surface intelligent recognition method based on double clustering. According to the method, high-precision image data of a high and steep slope is obtained through an unmanned aerial vehicle approaching photogrammetry technology, and a three-dimensional digital model of the high and steep slope is constructed by utilizing a three-dimensional reconstruction and calculation technology. And calculating normal vectors of all triangular surfaces based on the triangular surface vertex information of the model, and performing clustering analysis to divide structural surface groups with similar occurrence. And further performing clustering analysis according to the surface center coordinates of the triangular surface, and dividing to obtain the structural surface. And finally, calculating the inclination angle, inclination direction and trend data of the structural surface through an accurate mathematical model. According to the method, the flexibility and the safety of high and steep slope structural plane measurement operation are enhanced, a measurement area of any scale can be completely covered, objective, accurate, rapid and low-cost structural plane intelligent identification and attitude data acquisition are realized, and the method has important significance in engineering application related to high and steep slopes.

The invention discloses a rock quality index calculation method, system and device and a medium, and the method comprises the steps: determining a three-dimensional point cloud in response to a rock mass quality index calculation request; determining three-dimensional point cloud reconstruction data based on the distance between the three-dimensional point cloud and the fitting plane, and generating a three-dimensional point cloud image based on the three-dimensional point cloud reconstruction data; segmenting a surrounding rock structural surface of the three-dimensional point cloud picture; constructing a first roadway surrounding rock three-dimensional body which does not contain a surrounding rock structural surface; determining a second area corresponding to the surrounding rock structural plane in the three-dimensional point cloud reconstruction data according to the first area of the surrounding rock structural plane in the three-dimensional point cloud picture, and fitting the three-dimensional point cloud reconstruction data of the second area to form a structural plane equation; segmenting the first roadway surrounding rock three-dimensional body for the first time according to a structural plane equation to obtain a second roadway surrounding rock three-dimensional body containing a surrounding rock structural plane; the second roadway surrounding rock three-dimensional body is subjected to second segmentation, the rock mass quality index is calculated according to the second segmentation result, and high efficiency and lossless measurement of the rock mass quality index can be achieved.

The invention provides a shear test device and a test method for a slope with structural surface anchoring. The device comprises a freeze-thaw cycle device, a water level fluctuation device, a slope model, a prestress anchoring device, a shear loading device and a deformation monitoring device. The freezing and thawing cycle device provides a set temperature environment for the test process, the water level fluctuation device provides hydraulic erosion conditions for the anchoring slope model, the prestress anchoring device provides anchoring force for the slope containing the structural plane, and the shear loading device applies sliding force in the structural plane direction to the slope and provides conditions for damage of mortar and anchor cables. And the deformation measuring device monitors the displacement of the landslide mass and the deformation characteristics of the structural surface in the test process. According to the invention, the experimental simulation of the shear failure process of the anchoring slope containing the structural surface under the conditions of reservoir water level fluctuation and freeze-thaw cycle is considered, and the system has the functions of automatic control of temperature, hydraulic erosion and shear process and automatic monitoring of shear force, anchor cable prestress and structural surface sliding deformation.

The invention discloses a multilevel rock mass mechanical analysis method and system based on near field dynamics, and the method comprises the steps: generating a mica-matrix binary model matched with actual granite based on a K-L random field, mapping the model to a BB-PD model mass point through a DIP method, determining the distribution, the particle size and the content of mica, and determining the particle size of the mica; the mechanical weakening effect is simulated by reducing the normal and tangential stiffness of the mica phase, and the microstructure characterization of the rock is completed. Constructing a structural plane PD numerical model by combining the geometrical characteristics of the structural plane reconnaissance on site and the mechanical parameters of the indoor direct shear test, and analyzing the influence of the geometrical and mechanical characteristics of weak planes such as joints and fractures on the local mechanical properties of the rock mass; the method comprises the following steps of: constructing an engineering scale rock mass numerical model integrated with mechanical properties of a microscopic rock block and a microscopic structural surface by relying on field rock mass discontinuous surface distribution data and indoor test basic mechanical parameters, and finishing analysis on the influence of the overall mechanical properties of the engineering scale rock mass; and the problems of insufficient cross-scale collaboration and the like are solved.