69 results about "Open-pit mining" patented technology

The invention relates to the technical field of image processing, in particular to a mine safety monitoring method and system for an open-pit mining area. The method comprises the following steps: firstly, constructing different sliding windows to slide on a wedge-shaped slope image, extracting periodic characteristics of a slope surface by using similarity evaluation indexes, and comprehensively evaluating the similarity of each region of the image; secondly, determining periods of the image in vertical and horizontal directions based on similarity evaluation indexes, and optimizing block grid parameters according to the periods, so that the algorithm processing scale is matched with the periodic characteristics of the image, and the pertinence and detail representation of image enhancement are improved; and finally, the crack risk evaluation index is calculated by using the enhanced image, so that the accuracy and reliability of crack risk evaluation are remarkably improved, and the precision and robustness of slope landslide disaster monitoring are enhanced.

The invention relates to the technical field of mineral resource mining and mineral separation, and discloses a barite ore open-pit mining harmless mineral separation novel process which comprises the following steps: S1, adopting an open-pit mining mode, stripping surface coverings, and collecting barite raw ore; s2, raw ore primary washing and separation, specifically, the collected raw ore is washed with water, barite rough ore and primary tailings are separated out, and the primary tailings comprise ore washing muddy water and slag; s3, the ore washing muddy water generated in S2 is separated into coarse particle materials and fine muddy water in a physical separation mode, the coarse particle materials and the fine muddy water are 50 meshes or above, according to the novel barite ore open-pit mining harmless beneficiation technology, through all-component separation and resource utilization of tailings, a traditional tailing treatment mode is thoroughly changed, the ore washing muddy water generated by primary washing of raw ore is recycled, and the ore washing muddy water generated by secondary washing of the raw ore is recycled. Through physical separation, reselection and solid-liquid separation processes, fine sand products, soil backfill materials and process reuse water can be obtained through conversion, and no slurry waste residues exist.

The invention relates to the technical field of mining, and discloses an open-air graphite mine mining method and system based on fine rock-ore separation, and the method comprises the following steps: analyzing the geological structure, the ore occurrence state and the surrounding rock property of a graphite mine, and judging whether the graphite mine is a mining area or not according to the analysis result; blasting the mining area by adopting an open-pit mining mode to obtain mixed ore; fine rock-ore separation is conducted on the mixed ore through gravity separation, magnetic separation and flotation, and graphite ore and surrounding rock are obtained through separation; wherein the geological structure comprises fractures, wrinkles and lithology changes; the ore occurrence state comprises the form and continuity of graphite; the surrounding rock property comprises a rock stratum dip angle and a fault zone. According to the method, the mining process of the graphite mine is finely managed and controlled, so that the mining efficiency is improved, the cost is reduced, the safety guarantee is enhanced, the resource waste is reduced, and remarkable benefits are brought to the mining industry of the graphite mine.

The invention relates to the field of mine open pit mining, in particular to a pontoon pump station structure suitable for mine open pit mining, which comprises a bottom frame, a connecting truss, a pontoon assembly and a connecting assembly, the connecting truss is rotationally connected with the underframe; the pontoon assembly comprises a main ship; the connecting assembly comprises a first connecting mechanism, and the first connecting mechanism comprises a first connecting seat, a first connecting block, a first locking piece and a first push-out piece; the first connecting seat is arranged on the main ship, and the first locking piece and the first push-out piece are both arranged on the first connecting seat; the first connecting block is inserted into the first connecting seat, and the connecting truss is connected with the first connecting seat through the first connecting block; the first locking piece is used for locking the position of the first connecting block; and after the first connecting block is unlocked, the first push-out piece pushes the first connecting block to be separated from the first connecting seat, so that the main ship is separated from the connecting truss. The method has the effect of reducing economic loss caused by emergency situations in mining.

The utility model relates to an open-pit mine mining platform, and relates to the field of open-pit mine mining technology, the open-pit mine mining platform comprises a plurality of steps, each step comprises a slope top platform, a side slope and a slope toe platform, the slope top platform is provided with a bridge deck, the bridge deck is provided with a plurality of reinforcing piles, the reinforcing piles are perpendicular to the bridge deck, and the reinforcing piles are arranged on the bridge deck. The bridge deck and the slope crest platform are arranged in parallel, the top face of the bridge deck and the slope crest platform are located on the same horizontal plane, the reinforcing piles are inserted into the steps, the slope crest platform is provided with a first drainage ditch, the first drainage ditch is arranged between the bridge deck and the slope, and the first drainage ditch is arranged between the bridge deck and the slope. And a second drainage ditch is formed in the slope toe platform. The method has the effects that the slope stability is improved, and the landslide phenomenon is reduced.

The utility model belongs to the technical field of open-cast mining equipment, and particularly relates to an efficient shovel loading device for open-cast mining, which comprises a bucket main body, the bucket main body comprises a bucket middle part, a bucket front part and a bucket rear part, and the bucket front part and the bucket rear part are symmetrically arranged by taking the bucket middle part as a center; the first supporting and guiding assembly and the second supporting and guiding assembly are arranged on the sides, close to each other, of the rear portion of the bucket and the front portion of the bucket correspondingly, and the first supporting and guiding assembly and the second supporting and guiding assembly are both connected with the middle of the bucket; a first hinge seat and a second hinge seat are fixedly mounted in the middle of the bucket. The bucket is reasonable in design, the capacity of the bucket can be flexibly adjusted, the loading capacity can be rapidly adjusted according to different working condition requirements, meanwhile, the abrasion resistance and the dustproof performance of a transmission part can be improved, and the operation adaptability and the working efficiency under different working conditions are remarkably improved.

A long arm type compact wheel bucket excavator relates to mechanical equipment for open pit mining, comprising a supporting mechanism, a bucket wheel driving mechanism, a discharging arm rotating mechanism, a crawler walking mechanism and a tensioning mechanism, the discharging arm rotating mechanism comprising a main machine walking mechanism, a supporting base assembly, a rotating platform assembly and an adjusting plate assembly; the supporting base assembly comprising a central pipe vertically fixed on the main machine walking mechanism and a mounting seat fixed on the central pipe; the rotating platform assembly comprising a rotating platform rotatably supported on an L-shaped beam; the adjusting plate assembly comprising an adjusting plate body, a lower connecting shaft slide way symmetrically arranged on both sides of the adjusting plate body and an upper connecting shaft slide groove symmetrically arranged on the other two sides of the adjusting plate body, the guide directions of the lower connecting shaft slide way and the upper connecting shaft slide groove being perpendicular to each other. The wheel bucket excavator does not need to additionally set a reclaimer and will not generate triangular coal, and has the advantages of good stress characteristics, good safety and the like.

The application discloses a kind of V-shaped slope stability calculation method and system, it is related to strip mining technical field.Based on three-dimensional numerical simulation technology, determine its failure mode first determine the spatial form equation of potential sliding body, then the sliding body is divided into regional division micro column, through constitutive relation and static equilibrium condition, the stress state of micro column is solved, the force of each row micro column is superposed along the direction of main sliding surface, and the two-dimensional equivalent shear strength parameters with three-dimensional effect on each row of main sliding surface micro column are obtained using equivalent idea, then the three-dimensional V-shaped slope stability coefficient is derived using rigid body limit equilibrium method.The application avoids the problems of high calculation cost, difficult parameter determination and complex calculation process in the traditional three-dimensional slope stability calculation method, solves the three-dimensional stability problem of this special form slope, provides more reliable theory and technology for the design, mining, prevention and management of slope, and has important practical significance for ensuring mining safety and efficient production.

The invention provides a safe in-boundary mining control method for a slope in a landslide-containing risk area, and belongs to the technical field of open-pit mining. Firstly, local transverse mining replacement filling and local slope pressing treatment are conducted on the two sides of the landslide-containing risk area at the same time, and then longitudinal mining and transverse mining alternate mixed construction is conducted on the landslide-containing risk area and a non-landslide risk area; and according to the slope stability coefficient of each stage, construction parameters of each stage are determined, a finite element calculation model is established according to the parameters of each stage, and the transverse mining replacement filling tracking distance is determined. And finally, drawing a project position plan of each stage to guide open-pit coal mining. According to the method, how to treat the local landslide risk area of the side slope and how to reach the boundary after treatment are considered, the problem of treatment lag of the landslide risk area is avoided, and effective technical support is provided for follow-up treatment and follow-up mining of the landslide risk area of the open pit coal mine.

The present application relates to the technical field of mineral exploitation, and discloses a kind of red soil type bauxite mining area multilayer joint mining mining method, comprising the following steps: step 1: the surface soil layer and weathered rock layer covered to stope roof are once overall stripping, expose the roof of the uppermost ore body, form open-pit mining platform;Step 2: the first sublevel ore body is cut off using millisecond compression blasting, and the first stoping space is formed;Step 3: the first stoping space is used to promote the mining of lower ore body, and multilayer collaborative mining is realized;Step 4: after all sublevel ore bodies are mined to the designed depth, the surrounding rock and residual ore at the bottom of the stope are cleaned up, the waste rock generated during the mining process is backfilled to the mined-out area in layers, and the surface of the stope is covered with a surface soil layer after backfilling is completed.The present application can realize synchronous and collaborative mining of multilayer ore bodies, shorten the overall mining cycle, improve resource recovery rate, reduce mining cost and ensure operation safety.

The invention belongs to the technical field of strip mining and rock soil solidification, and particularly relates to a composite material for solidifying mud rock in a strip mine and a preparation method of the composite material. The main components of the composite material for solidifying the mudstone in the strip mine comprise mudstone, fly ash, calcium oxide and a bacillus subtilis suspension. The invention also provides a preparation method of the composite material for solidifying the mudstone of the strip mine, which comprises the following steps: pretreating the mudstone and the fly ash, preparing bacillus subtilis suspensions with different concentrations, fully mixing a mudstone sample, the fly ash, calcium oxide and the bacillus subtilis suspensions, carrying out compression molding, and maintaining for 7 days or 28 days to obtain the composite material for solidifying the mudstone of the strip mine. The composite material for solidifying the strip mine mudstone is obtained. According to the method, the compressive strength, cohesive force, internal friction angle and other mechanical properties of the strip mine mudstone are remarkably improved, and the disintegration resistance and the impermeability are greatly improved, so that the slope stability is effectively enhanced.

The invention discloses a method and a device for judging internal discharge soil bearing of a surface mine, a storage medium and a computer, and relates to the technical field of mining. The method comprises the following steps: acquiring inner dumping site design parameters of a final boundary of open-pit mining; based on the design parameters of the inner refuse dump, calculating a horizontal distance value between an inner refuse dump slope and a working slope of the final boundary of open-pit mining; acquiring a preset distance safety value, and judging whether the horizontal distance value is greater than or equal to the distance safety value; if the horizontal distance value is larger than or equal to the distance safety value, a first instruction is output, and the first instruction is used for instructing final boundary planning of open-pit mining according to the current inner dumping site design parameters; if the horizontal distance value is smaller than the distance safety value, a second instruction is output, and the second instruction is used for instructing adjustment of the inner dumping site design parameters. According to the scheme, the accuracy of judging whether the final boundary of open-pit mining has the internal discharge soil bearing condition or not can be improved, so that the environmental protection level of an open-pit mine is improved.

The application discloses a kind of open-pit mining mine annual resource quantity monitoring method and system, it is related to mine resource monitoring technical field, the method includes: obtaining multi-source remote sensing data, and the multi-source remote sensing data is carried out data screening and control point correction preprocessing, obtain the multi-source remote sensing data after preprocessing;Based on the multi-source remote sensing data after preprocessing, DEM extraction, DEM normalization and 3D butt joint ore body processing are carried out, obtain the butt joint three-dimensional ore body model;According to the butt joint three-dimensional ore body model, the earthwork of open-pit mining area is calculated;Based on the earthwork, the annual resource quantity of open-pit mine is calculated;Based on the annual resource quantity of open-pit mine, using vector and raster superposition method, annual resource quantity monitoring result map of open-pit mine is generated.The application can improve the precision and efficiency of mine annual resource quantity monitoring.

The utility model discloses semi-continuous conveying equipment for surface mining, and relates to the technical field of conveying equipment. The semi-continuous conveying equipment for surface mine mining comprises a first concave plate, a conveying belt is arranged on the first concave plate, the left side and the right side of the first concave plate are each fixedly connected with two fixing plates, a cleaning assembly and a cleaning combination are arranged on the first concave plate, and screening assemblies are arranged on the fixing plates. The screening assembly comprises two L-shaped fixing plates, the output ends of two vibration motors drive a screening plate to rapidly vibrate up and down through two second springs and three first springs, and then external ore is placed on the upper surface of the screening plate through a rectangular feeding box; and the screening plate can separate a large amount of soil and small broken stones adsorbed on the ore during rapid up-down vibration, so that the next processing of the ore is facilitated, and the practicability of the conveying equipment during use is improved.

The application discloses a method for constructing an internal dumping site based on a fly ash-based cementing material carbon dioxide storage, and utilizes the cementing properties of fly ash of a pit mouth coal-fired power plant to prepare a fly ash-based cementing material with super high content, and utilizes the high-strength fly ash-based cementing material to construct a carbon dioxide storage, and utilizes a cement-free low-strength fly ash-based cementing material to backfill an open-pit mine pit, so that the resource utilization and efficient collaborative disposal of fly ash solid waste are realized; the carbon dioxide storage is constructed in the internal dumping site space, the open-pit mining space is effectively utilized, and the problem of insufficient material for land reclamation backfilling in the late mining stage is solved; the carbon dioxide storage reinforced by the anchor rod prestress has high strength and large internal space, the mine pit bottom plate impermeable layer and the overlying clay cover layer increase the airtightness, and the safe and efficient large-scale storage of critical state carbon dioxide is realized; the fly ash-based cementing material can mineralize carbon dioxide in a humid environment, increases the carbon dioxide storage amount, and improves the carbon dioxide storage strength and airtightness.

The invention discloses a method for rock discharge and transportation of a hillside open-pit mine, belongs to the technical field of hillside open-pit mine mining, and solves the problems of long rock discharge and transportation distance, low rock discharge operation efficiency and high production cost in the hillside open-pit mine step mining process. Transportation channels used in the method comprise an open-pit mining step, a working side, a dumping site, a rock dumping transportation channel, shovel loading equipment, transportation equipment, a rock muck pile and an ore muck pile. During hillside strip mine step mining, continuous linear mining is conducted firstly, and then slope expanding is conducted towards the east side and the west side; the rock discharging transportation channel is exploded and pushed to the mine and rock boundary line from the lower step, and exploded and excavated along the mine and rock boundary line to the soil discharging unloading platform where the upper step is located in the projection range direction of the lower step; and a rock discharging transportation channel is formed. According to the invention, the rock discharge transportation distance is greatly shortened, and the rock discharge operation efficiency is improved; transport equipment can be prevented from moving upwards in a heavy-load mode to discharge rocks through the connection cutting, and the production cost is reduced.

The utility model relates to a kind of open-pit mining blasthole axial slitting device, including cylinder, the threaded column is threaded cylinder upper end, and multiple groups of guide mechanism and multiple groups of cutting mechanism are arranged at interval in lower end, and guide mechanism and cutting mechanism are alternately arranged;The guide mechanism is arranged on the outer surface of cylinder;The cutting mechanism is arranged in the reserved cavity that is previously opened in cylinder interior, and the cutting mechanism can be telescopic adjustment.The utility model uses electric push rod and driving motor to control the extension and rotation of cutting wheel, can flexibly adjust cutting depth and direction according to different design and cutting demand, cutting wheel is retracted after construction, the integrity of blasthole wall can also be ensured, combined with intelligent control mode, the control precision of cutting action can be further improved, ensure the uniformity and consistency of slitting, significantly improve the flexibility, adaptability and accuracy of cutting.

The utility model relates to the technical field of blasting, in particular to a deep hole blasting device for open-cast mining, which reduces the shaking of an electric three-jaw chuck in the descending process, reduces the shaking of an explosive charge, prevents the explosive charge from colliding with the inner side wall of a deep hole when the explosive charge is put in the deep hole, and is high in safety and reliability. Comprising an electric moving trolley and an electric three-jaw chuck. A cavity is formed in the protection cylinder, the upper end and the lower end of the protection cylinder are open, the protection cylinder is installed on the electric moving vehicle through the lifting mechanism, the lifting mechanism is used for lifting the protection cylinder, the guide mechanism is installed on the electric three-jaw chuck and the protection cylinder, and the height adjusting mechanism is used for adjusting the height of the protection cylinder. The guide mechanism is used for guiding the electric three-jaw chuck, and the height adjusting mechanism is used for adjusting the height of the electric three-jaw chuck.

The utility model discloses a surface mine mining shoveling device, which relates to the field of mine mining, and comprises a main support body, one side edge of the main support body is vertically provided with a vertical side groove, the top surface of the main support body is fixedly connected with an adjusting motor, and the bottom surface of the main support body is symmetrically clamped with driving wheel bodies; a movable side block is in butt joint with one side edge of the main supporting body, a vertical connecting rod is perpendicularly and downwards welded to the bottom face of the movable side block, a containing box body is horizontally in butt joint with one side edge of the vertical connecting rod, a scraping inclined rod is horizontally and fixedly welded to one end of the containing box body, and a turnover motor is fixedly arranged on one side edge of the containing box body. Bottom clamping holes are symmetrically formed in the bottom face of the main supporting body, the top ends of the bottom clamping holes are fixedly connected with steering motors, an integrated wireless remote control type control structure is adopted so that the device can be used more efficiently and safely, and a turnover containing box body structure is combined so that the device can be more rapidly shoveled and loaded.

The invention discloses an iron ore caving stoping method, relates to the technical field of underground iron ore mining, and aims to solve the problem of dust pollution in caving mining. According to the method, dust control equipment is prepared through a preparation mining project, a monitoring system is linked, rock mass is pre-wetted before blasting, and a low-dust explosive is adopted to inhibit a dust source; during blasting, the operation space is closed, micro-negative pressure is formed, dust is condensed through superfine water mist after blasting, and negative pressure adsorption and purification are conducted; and the dust concentration is dynamically regulated and controlled in the shoveling and ore drawing stages, and the collected dust is subjected to resource recycling along with ore. According to the method, dust control over the whole recovery process is achieved, the dust concentration is stably smaller than or equal to 10 mg / m, the respirable dust removal rate is larger than or equal to 95%, operation is easy and convenient, the mining efficiency is not reduced, safety and economical efficiency are both considered, and the method is suitable for various caving recovery iron ore beds.

The invention relates to the technical field of fog gun machines, in particular to coal mine open-pit mining dust fall equipment which comprises a rotary base for supporting, a gun head is assembled on the surface of the rotary base, a fan is assembled at the tail of the inner wall of the gun head, a water spraying ring is assembled at the end of the inner wall of the gun head, and a plurality of nozzles are assembled on the surface of the water spraying ring; by arranging the rotatable water spraying ring, the water spraying ring is in a dormant state when the water spraying ring is horizontal, scale is accumulated on the rugged surface of the scale settling tank in a large area due to gravity, the water spraying ring is in a working cavity when the water spraying ring is in a vertical state, and a cleaning plate is attached to the surface of the scale settling tank, so that the interior of the water spraying ring is in a smooth state; in the working process of switching between the dormancy cavity and the working cavity, the sealing ring cleans the inner wall of the water spraying ring, the service life of the working cavity can be effectively prolonged, the service life of the water spraying ring is prolonged, and the use cost is reduced; and meanwhile, the sprayed water mist can be kept in a stable and uniform state all the time.

The invention belongs to the technical field of mining equipment, and particularly relates to a continuous mining and loading machine for open-cast mining and a working method. A material collecting device; the ore stripping device is arranged at the front end of the chassis, the ore stripping device can be switched between a high position and a low position, the ore stripping device is used for conducting ore stripping on an open-pit mine layer at the high position, stripped ore materials fall on the collecting device and the ground, and the ore stripping device is used for sending the ore materials on the ground to the collecting device at the low position; the temporary storage device is arranged at the rear end of the chassis; and the walking device is arranged on the chassis. Through integration of the high-position stripping function and the low-position material stripping function of the ore stripping device, the opening and closing material stripping and collecting function of the material collecting device and the material storing and buffering function of the material storing and buffering device, the technical bottlenecks that traditional equipment is long in operation window period, low in ore loading efficiency and poor in operation continuity are effectively solved, whole-process integrated continuous operation of stripping, material collecting and conveying is achieved, and the working efficiency is improved. And the mining efficiency of a large surface mine can be effectively improved.

The application relates to a slope supporting device for open-pit mining, which comprises a reinforcing mesh and an anchor rod, the reinforcing mesh is laid on a mine slope, the anchor rod is embedded in the mine slope, a backstabbing plate is arranged on the anchor rod, a first hole is arranged on the anchor rod, the first hole is arranged along the length direction of the anchor rod, one end of the backstabbing plate is hinged to the anchor rod, a hinge shaft is located in the first hole and at the end of the first hole close to the front end of the anchor rod; the cross section of the backstabbing plate gradually increases in the direction away from the front end of the anchor rod, the maximum length of the backstabbing plate does not exceed the length of the first hole, two backstabbing plates and the first hole are symmetrically arranged on the anchor rod, a jacking assembly is arranged between the adjacent backstabbing plates, and the jacking assembly is used for driving the backstabbing plate to swing in the direction of the inside or outside of the anchor rod; a positioning plate is fixed to the tail end of the anchor rod, a safety hook is arranged on the positioning plate, and the safety hook is used for detachably connecting the anchor rod and the reinforcing mesh. The application has the effects of facilitating the recycling of the anchor rod supporting structure and ensuring the fixing degree between the anchor rod and the mine slope after fixing.

The invention provides a method for calculating the safe distance between a dumping site outside a strip mine and a stope, and belongs to the technical field of open-cast mining design. The calculation method comprises the following steps: acquiring a safety distance between a slope base line of a lowermost step of the outer waste dump and a slope top line of an uppermost step of the stope according to respective slope forms of the outer waste dump and the stope, calculating a composite slope stability coefficient according to the safety distance, and comparing the slope stability coefficient with a slope safety reserve coefficient Fst, and the minimum safety distance meeting the safety requirement between the outer dumping site and the stope is obtained. According to the method, the slope stability change trend under different safety distances is researched, on the premise that the slope safety is guaranteed, the surface mine dumping distance is shortened, the economic benefits of the surface mine are improved, and the problem of reserving the safety distance between an outer dumping site and a stope is reasonably solved.

The invention relates to the technical field of mining machinery, in particular to an open-pit mining blasting drilling device which comprises a drilling tool unit, a dust collection cover is mounted on the drilling tool unit through a connecting frame, a protection unit is mounted on the upper side of the interior of the dust collection cover, and a cleaning unit is mounted on the protection unit; according to the device, rock debris and dust can be swept when being blown out of a blast hole, so that the rock debris and dust discharged from the blast hole can be synchronously blown into a dust collection pipeline, and rock debris and dust accumulation on the ground near the blast hole after drilling is prevented; therefore, the accumulated rock debris is prevented from falling back into the blast hole again under the action of gravity, and the subsequent blasting effect is ensured; and meanwhile, rock debris and dust blown out of the blast hole can be buffered, the impact force of the rock debris is reduced, and therefore the service life of the dust collection cover is ensured.

The present application relates to the technical field of mine machinery, specifically is a kind of open-pit mining blasting drilling device, including drilling unit unit, dust cover is installed on drilling unit unit by connecting frame, the inside upper side of dust cover is installed with protection unit, and cleaning unit is installed on protection unit;The present application can clean the rock debris and dust when the rock debris and dust are blown out from the blasting hole, so that the rock debris and dust discharged from the blasting hole can be synchronously blown into the dust collection pipeline, to prevent the ground near the blasting hole after drilling from accumulating rock debris and dust, thereby preventing the accumulated rock debris from falling back into the blasting hole under the action of gravity, ensuring subsequent blasting effect;Meanwhile, the present application can buffer the rock debris and dust blown out from the blasting hole, reduce the impact force of rock debris, thereby ensuring the service life of dust cover.

The utility model is suitable for the technical field of slope protection, and provides an open-pit mining slope treatment reinforcing structure which comprises a base. The adjusting plate is hinged to the base and used for adjusting the slope attaching angle of the equipment; the bottom plate is detachably mounted on the adjusting plate through a first threaded rod; the protection plate is mounted at the top of the bottom plate and is used for reinforcing a side slope; the supporting rod is fixed at the top of the bottom plate and is used for reinforcing and supporting the protection plate; and the top plate is mounted at the top of the protection plate, and a threaded hole used for being connected with the first threaded rod located on the other adjusting block is formed in the top plate. The open-pit mining side slope treatment reinforcing structure can be conveniently assembled and disassembled according to the height of the side slope so as to achieve covering protection on the side slope, flexibility is high, and the protection effect is good.

The present application relates to the technical field of image processing, in particular to a kind of open pit mining area's mine safety monitoring method and system.The present application is first by constructing different sliding window on wedge-shaped slope image sliding, using similarity evaluation index extracts periodic characteristics of slope surface, overall assesses the similarity of each region of image;Second, based on similarity evaluation index determines the period of image in vertical and horizontal direction, and this optimizes the block grid parameter, so that algorithm processing scale and image itself periodic characteristics match, to enhance the pertinence and detail performance of image enhancement;Finally, using the image after enhancement calculates crack risk evaluation index, significantly improves the accuracy and reliability of crack risk evaluation, enhances the precision and robustness of slope landslide disaster monitoring.