38 results about "Canyon" patented technology

The invention relates to the technical field of geotechnical engineering construction, in particular to a valley accumulation body curtain grouting construction control method based on SVM and PID, which comprises the following steps: obtaining construction data including stratum permeability coefficient, grouting pressure, slurry consistency, grouting flow and slurry diffusion range; constructing a three-dimensional geologic model of the canyon accumulation body, associating the parameters with corresponding positions in the model, generating a construction feature vector with geological attributes, inputting the construction feature vector into a pre-trained SVM model so as to predict a geological response trend, correcting control parameters of a PID control model according to the geological response trend, and then dynamically regulating and controlling operation parameters of grouting equipment, so as to achieve the purpose of predicting the geological response trend. PID control parameters and grouting key parameters are continuously optimized. Therefore, the problems that in the prior art, self-adaptive control over complex and changeable geological conditions is difficult to achieve, grouting parameter setting is not accurate, and construction quality is not stable are solved.

The invention relates to a gravity type anchoring super-long cableway bridge in a complex wind field alpine and canyon area and a construction method, which are characterized by comprising the following construction steps: step 1, construction preparation; step 2, rock anchor cable construction; thirdly, concrete anchorage pier construction is conducted; fourthly, I-shaped steel distribution anchor beams are installed; step 5, mounting a bearing cable; sixthly, a handrail steel rope is installed; seventhly, bridge deck system cross beams are installed; 8, mounting a bridge floor steel wire mesh; ninthly, angle steel guardrails are installed; and tenthly, wind cable construction is conducted. The cableway bridge is constructed above the riverway in the alpine and gorge area of the complex wind field to assist in construction of rigid frame bridge beams and pier columns, and the problems that no construction road exists on cliff walls on the two sides of the riverway, water flow kicks rapidly in the waterlogging period, and transportation of materials, personnel and small construction machines cannot be conducted are solved.

The utility model discloses an anchor cable type steel distribution beam anchor for hoisting construction of a V-shaped canyon bridge, which belongs to the technical field of distribution beam anchors and comprises an anchoring mechanism fixedly arranged on a rock stratum surface. The distribution beam structure is connected with the anchoring mechanism, and the distribution beam structure is fixedly arranged on the rock stratum surface by driving the anchoring mechanism; and the multiple cables are movably connected with the distribution beam structure, and each cable can freely move on the horizontal plane through the distribution beam structure. Under the action of the anchoring mechanism, the distributive girder structure realizes uniform distribution of acting force, the non-uniform bearing capacity of the distributive girder structure is avoided, and meanwhile, the hoisting of bridges at different positions can be met, so that the aims of canceling the arrangement of cable bent towers, fully utilizing topographic and geological conditions and greatly saving the construction cost are fulfilled.

The utility model provides a monitoring and early warning device for a debris flow gully in a canyon fall section, and relates to the technical field of natural disaster early warning. The device comprises a supporting column, a connecting frame, a sliding rail, a debris flow monitoring module and a rainfall monitoring module. Wherein the supporting columns are embedded and fixed on the two sides of a debris flow gully; the connecting frame is fixedly connected to the upper end of the supporting column. The sliding rail is fixed to the lower end of the middle of the connecting frame and extends in the same direction as the debris flow gully. The debris flow monitoring module is slidably connected to the sliding rail and can follow the debris flow state in the debris flow gully when the debris flow disaster occurs. And the rainfall monitoring module is fixed at the upstream position of the debris flow gully. According to the scheme, the debris flow monitoring module can move along the channel for monitoring through the sliding track, dynamic data collection is achieved in combination with the rainfall monitoring module, the problem that traditional fixed-point monitoring cannot adapt to complex canyon terrains is solved, and the accuracy and timeliness of early warning are improved.

The invention relates to the technical field of hydraulic engineering construction, in particular to a canyon accumulation body curtain grouting construction method and device capable of enhancing structural strength, and the method comprises the steps that the rock porosity, permeability and temperature change rate of a canyon accumulation body area are obtained; constructing an accumulation body geologic model according to the porosity, permeability and temperature change rate of the rock soil, and determining grouting parameters based on the accumulation body geologic model; grouting holes are drilled according to grouting parameters, composite grout is injected into the grouting holes, the grouting parameters are monitored and adjusted in real time, meanwhile, the grout performance is adjusted according to temperature changes, after grouting is completed, the structural integrity and impermeability of the curtain body are detected and evaluated, and if the requirements are not met, supplementary grouting treatment is conducted. Therefore, the problems that in the prior art, under the complex geological environment, the grouting structure strength is uneven, and the grout performance is affected by the temperature change condition are solved.

The application discloses a kind of high mountain and gorge area landslide risk monitoring method and system based on single-track InSAR data, it is related to high mountain and gorge area landslide monitoring technical field, including steps: obtaining the single-track visual deformation point array data and digital elevation model data of target area in each phase;Obtain regional slope;Get vertical deformation data;Extract to obtain reliable coherent data points;The data filling of vertical deformation is obtained to obtain incoherent initial filling data points, and incoherent reliable filling data points are obtained;Obtain the reliable deformation time series point cloud graph corresponding to observation period;Based on reliable deformation time series point cloud graph, obtain the period deformation data of target area in observation period.The method provided by the application does not carry out filling repair to the InSAR missing data points caused by shooting shielding, carries out filling repair to the InSAR missing data points caused by landslide related physical reasons, enhances landslide risk identification data amount, and is favorable to improve landslide risk identification precision.

The invention relates to the field of water conservancy and hydropower facilities, in particular to a design method of a gully water and debris flow prevention and control system for achieving gully water and debris flow cooperative prevention and control between adjacent branch gully, and the design method comprises the following steps: a, determining a building level, a flood standard and an emergency flood drainage standard; b, determining a first water inlet and a second water inlet; c, the flood flow and the total solid matter amount of the branch ditches and the emergency flood drainage flow of the corresponding emergency flood drainage channel are determined; d, determining the scale of a second retaining dam and the scale of a second drainage tunnel; e, determining the scale of a second blocking dam; f, determining the scale of a first retaining dam and the scale of a first drainage tunnel; g, determining spatial arrangement positions of a first emergency flood drainage channel of the first branch ditch, a second emergency flood drainage channel of the second branch ditch and a confluence drainage channel; determining the scale of the first emergency flood drainage channel, the scale of the second emergency flood drainage channel and the scale of the confluence drainage channel. The method is suitable for the channel engineering of the hydropower station in the alpine and canyon region.

The invention relates to the technical field of water resource management, and discloses a canyon type reservoir water surface evaporation rate determination method, device and equipment and a medium, and the method comprises the steps: obtaining basic data of adjacent stations of a target area in each time period, and calculating the water temperature difference of the corresponding time period based on the basic data; classifying the basic data of each time period by using positive and negative values of the water temperature difference to obtain data sample sets corresponding to different types, and determining initial water surface evaporation rate calculation models corresponding to the different types; key parameters of the initial water surface evaporation rate calculation model are optimized according to the target constraint with the minimum energy closing error absolute value, and a target water surface evaporation rate calculation model is obtained; and inputting the data sample sets corresponding to different types into the target water surface evaporation rate calculation model to obtain the water surface evaporation rate. The method solves the problem that the calculation precision of the canyon-type reservoir water surface evaporation rate is insufficient due to the fact that the positive and negative water temperature difference and the local circulation influence are not distinguished in the prior art.

The present invention discloses a main tower-free super-large-span composite bridge applicable to wide and deep canyons and a construction method, and the steps are as follows: inclined shaft construction; installation of the main cable saddle; installation of the cable spreader saddle; installation of the cable fixing device; pouring of the anchor solid; installation of the stay cable anchor; installation of the main cable; installation of the stay cables; erection of the main beam. The composite bridge comprises a main beam, stay cables, a main cable, suspension cables, stay cable anchors, a main cable anchoring device and inclined shafts. The main beam is erected between the canyons; the inclined shafts are arranged on both sides of the tunnel entrance; the main cable anchoring device is arranged at the front end of the inclined shaft; a stay cable anchor is arranged below the main cable anchoring device; one end of the suspension cable is connected to the main cable, and the other end of the suspension cable is vertically connected to the main beam for suspending and fixing the main beam; one end of the stay cable is fixedly connected to the main beam, and the other end of the stay cable is connected to the stay cable anchor. By combining the anchoring of the stay cables and the main cable into the mountain body to replace the erection of the main tower, the construction difficulty is reduced and the project cost is reduced. At the same time, the characteristics of the cable-stayed bridge and the suspension bridge are combined to realize the connection of super-large-span canyons.

The invention relates to the field of crustal stress estimation, provides a method for estimating horizontal crustal stress in a high mountain and valley region, and provides a horizontal crustal stress calculation formula corresponding to the slope height, the slope toe and the valley width in the high mountain and valley region on the basis of equivalent burial depth by researching crustal stress distribution characteristics of different terrains and combining three-dimensional modeling. According to the method, the calculation amount of ground stress estimation is reduced, the estimation efficiency is improved, the estimation range is widened, and manpower, material resources and time cost can be saved.

The present invention provides an energy-absorbing thin-walled inverted siphon seismic isolation and vibration reduction structure, belonging to the technical field of seismic isolation and vibration reduction. It includes: an inverted siphon water delivery pipe; the inverted siphon water delivery pipe is composed of a plurality of pipe segments connected in sequence; the pipe segments are connected through an aluminum foam shock absorption unit; one end of the inverted siphon water delivery pipe is connected to the water intake of the upstream river through a first regulating valve, and the other end is connected to a reservoir through a second regulating valve; a reinforced concrete anchor block is arranged at the corner of the inverted siphon water delivery pipe. The seismic isolation and vibration reduction structure provided by the present invention can effectively improve the overall stiffness and stability of the inverted siphon structure, and achieve the purpose of comprehensively enhancing the overall impact resistance, seismic performance of the inverted siphon structure and compensating for the deformation of the inverted siphon. The structure is simple, easy to install and maintain, and can be widely applied to the construction, repair and protection of long-distance water conveyance projects in alpine and canyon areas.

The application relates to a simulation experiment system of canyon river and alluvial fan interaction, which comprises a groundwater reservoir, a water inlet pool, a water and sand mixing narrow slot, a sediment deposition pool and a water outlet pool. The simulation experiment system can meet the research needs of river and alluvial fan interaction, can inversely analyze the process of alluvial fan development forming an alluvial plain, and has the advantages of simple operation, precise control, convenient measurement, low cost and the like.

This invention discloses a landslide dynamic deformation and rupture monitoring method integrating InSAR and UAV, belonging to the field of geological disaster monitoring technology. It aims to address the problems of highly concealed bedding landslides in high mountain and canyon areas, insufficient spatiotemporal resolution of traditional monitoring methods, and the difficulty of using a single technology to simultaneously monitor macroscopic deformation and microscopic rupture. The core of its technical solution is as follows: first, establish a monitoring spatial benchmark and preprocess multi-source SAR data; then, calculate the global deformation field and optimize zoning through a combination of PS-InSAR and SBAS-InSAR; finally, collect rupture features using UAV and construct a three-dimensional model; and establish a deformation-rupture correlation through spatiotemporal fusion of multi-source data, combined with a dynamic early warning mechanism, to achieve full-scale dynamic monitoring and graded early warning of landslides, providing support for early identification and risk management of landslides.

The present invention relates to the technical field of geological survey, and provides a method for directional coring along a large-angle curved path, comprising the following steps: S1, selecting an appropriate drilling path on the basis of the depth and span of a river bottom to be traversed, so as to ensure that the drilling path passes through the entire river bottom and reaches a mountain on an opposite bank; S2, using a first coring tool to drill a first borehole section in a downward-inclined direction from a road surface, and during the drilling, a wireline coring mechanism inside the first coring tool continuously cutting off and retrieving core samples; S3, retrieving the first coring tool upon completion of the drilling of the first borehole section, and mounting a casing in the first borehole section; and S4, replacing the first coring tool with a second coring tool, a pilot bit passing through the casing and continuing drilling, the pilot bit continuously changing the drilling direction under the weight of a coring drill rod, and a wireline coring mechanism inside the second coring tool continuously cutting off and retrieving core samples. In the present invention, the drilling direction of the drill bit can be changed during drilling and coring, thereby facilitating directional traversal across deep-cut valleys and retrieval of core samples in mountainous and canyon regions.

The present application relates to the field of geological disaster identification, and particularly relates to a highway slope landslide debris flow disaster identification method, device, equipment and medium. The present application realizes deep fusion of spectral features of optical images and DEM elevation features through a cross-modal cycle fusion module by using high spatial resolution optical remote sensing images of high mountain and canyon area highway slope and DEM data of the same area, and can simultaneously capture texture damage and surface deformation information of landslide debris flow. Meanwhile, when the optical image is seriously covered by cloud and snow, the DEM data branch can be used as an independent data source for identification, ensuring the continuity and stability of the identification work. The present application organically combines two different modal and information complementary remote sensing data, improves the accuracy of landslide debris flow geological disaster identification, can meet the demand of rapid survey of disaster points along the highway in the high mountain and canyon area and major engineering area, can reduce the human workload, and improve the work efficiency.

The application relates to a high-altitude canyon area composite cofferdam integrated construction method, and relates to the technical field of cofferdam construction. The method comprises the following steps: cofferdam design optimization is carried out, the structure form of the composite cofferdam is determined, the stability coefficient of the cofferdam body slope is increased, and the permeability coefficient of the impermeable body is controlled; the impermeable body is formed by combining high-strength frost-resistant concrete, a composite geomembrane and a bentonite waterproof blanket, and frost resistance and aging resistance pretreatment is carried out; construction is organized in regions and time periods, a layered rolling process is used to control the compactness, the impermeable body is welded in a hot melting mode, and a warm shed method is used for construction under low-temperature conditions; displacement, settlement, seepage flow and stress and strain monitoring points are laid to realize real-time monitoring and early warning; and an operation and maintenance guarantee system is established, including composite heat preservation in winter and maintenance in flood season. The scheme can improve the structural stability, impermeability and risk resistance of the cofferdam under extreme environments.

The invention relates to a monitoring device suitable for a canyon debris flow slit and an early warning method thereof. The monitoring device comprises a supporting frame, a stay wire calibration frame, a plurality of installation parts, a stay wire set and a releasing mechanism, and the stay wire calibration frame and the supporting frame are fixed to the two sides of the canyon debris flow slit respectively; the plurality of mounting parts are arranged at intervals along the height direction of the stay wire calibration frame; the stay wire type displacement meter is installed on the supporting frame. The stay wire group comprises a main stay wire and a standby stay wire, the release mechanism can be switched between a locking state and a release state, and when the release mechanism is in the locking state, the release mechanism fixes the standby stay wire; and when the release mechanism is in the release state, the standby stay wire is separated from the release mechanism. Therefore, when the main stay wire is damaged and the standby stay wire needs to be replaced, a worker pulls the standby stay wire on the side of the supporting frame, the release mechanism can be switched to the release state, the standby stay wire can be used as a new main stay wire after falling off from the release mechanism, and real-time monitoring of the monitoring device can be guaranteed.

The invention relates to the technical field of hard surrounding rock hillside tunnel burial depth design in the field of tunnel engineering, in particular to a hillside tunnel hillside depth determination method based on rockburst risk in a high mountain and valley region, which comprises the following steps: determining the superposition influence range of a tectonic stress field and a valley stress field; determining a strong rockburst limit caused by the burial depth; and determining the safe burial depth range of the near-mountain tunnel by integrating the influence ranges of the tectonic stress fields in the step 1 and the step 2 and the influence ranges of the valley stress fields and the strong rockburst limit caused by the burial depth. According to the method for determining the mountainside depth of the mountainside tunnel in the alpine and valley region based on the rockburst risk, for the first time, for the hard surrounding rock mountainside tunnel under the complex crustal stress condition, multiple factors such as the complex geological environment, the high-energy-storage rock mass, the high-level tectonic stress field, the valley stress field and the large burial depth are comprehensively considered, and the comprehensive burial depth determining method is provided; the scientificity of tunnel burial depth determination is ensured, and the technical blank in the field is filled.

The invention discloses a deep-cut 'V'-shaped canyon large-span arch bridge inclined pile foundation which comprises a round-end-shaped inclined pile, the cross section of the round-end-shaped inclined pile comprises a fan-shaped upper portion and a rectangular lower portion, and the round-end-shaped inclined pile is obliquely arranged in a pile hole; the rectangular bearing platform is connected with the round-end-shaped inclined piles; the arch ribs are supported on the rectangular bearing platform, and the inclination angle of the arch ribs is the same as that of the round-end-shaped inclined piles; the pier body bearing beam is arranged on the rectangular bearing platform; and the junction pier is arranged on the pier body bearing beam. Compared with the prior art, the stress requirement of the deep V-shaped canyon complex geology can be met.

The utility model relates to the technical field of hydraulic engineering and ecological environment, in particular to an ecological flow regulation and control device of a high mountain and valley type reservoir, which comprises a water inlet and a water outlet, a water outlet gate is arranged in the water outlet, the top of the water outlet gate is fixedly connected with a first driving component, and the first driving component is in signal connection with a controller. The water outlet gate comprises a gate frame, the gate frame is vertically and slidably connected with the side wall of the water outlet, a through groove is formed in the gate frame, a plurality of drainage pieces are arranged in the through groove, the tops of the drainage pieces are slidably connected with the top of the through groove, a plurality of drainage holes are formed in the drainage pieces, and a plurality of hydraulic telescopic rods are arranged on the two sides of the through groove. The output ends of the hydraulic telescopic rods are fixedly connected with one sides of the corresponding drainage pieces, and the input ends of the hydraulic telescopic rods are in signal connection with the output end of the controller. According to the intelligent ecological flow control system, the controller is arranged, the size of the drainage channel can be adjusted according to the requirements of flow, flow speed and the like, and intelligent regulation and control of ecological flow are achieved.

The invention provides a feasibility analysis-based space protection optimization method for rock collapse, and belongs to the technical field of geological disaster prevention and control. Firstly, the unmanned aerial vehicle is used for obtaining high-precision topographic data, and then the influence range of rock collapse is accurately delimited by combining rock collapse movement track calculation. Through deep analysis of blocking space and strength characteristics, the most appropriate blocking installation position is determined. According to the method, comprehensive prevention and control of rock collapse can be achieved under limited economic investment, and a more stable and reliable safety barrier is provided for large-scale engineering construction in alpine and gorge unmanned areas. Therefore, the safety of engineering construction is greatly enhanced, and a solid guarantee is provided for smooth promotion of engineering and maintenance of economic benefits.

The utility model relates to a device suitable for monitoring water and soil loss in alpine and valley areas, and belongs to the technical field of water and soil loss monitoring. Comprising a monitoring area, the two sides and the high-position side of the monitoring area are separated from the outside through baffles, a precipitation tank is arranged on the low-position side of the monitoring area, the precipitation tank is obliquely arranged, a water outlet is formed in the lowest point of the precipitation tank, filter cloth is arranged on the water outlet, and the water outlet is connected with a collecting barrel through a pipeline. The arrangement height of the collecting barrel is lower than the height of the water outlet; a cover plate is arranged at the top of the precipitation tank, and a water inlet is formed in the side, close to the baffle, of the precipitation tank. According to the device, runoff and silt generated in a monitoring area are guided into the precipitation tank, the silt is deposited in the precipitation tank, and water flow automatically flows to the collection barrel to be collected, so that the silt and water are separated, the accurate silt amount and water amount are obtained, and the accuracy of a monitoring result is effectively improved.

The present application relates to the field of geotechnical engineering construction technology, and in particular to a canyon deposit curtain grouting construction control method based on SVM and PID, which includes: obtaining construction data including formation permeability, grouting pressure, slurry consistency, grouting flow rate and slurry diffusion range; constructing a three-dimensional geological model of the canyon deposit, and associating the above parameters with corresponding positions in the model to generate a construction feature vector with geological attributes, and inputting it into a pre-trained SVM model to predict the geological response trend, and accordingly correct the control parameters of the PID control model, and then dynamically adjust the operating parameters of the grouting equipment, so that the PID control parameters and key grouting parameters can be continuously optimized. Thus, the problem that it is difficult to achieve adaptive control of complex and changeable geological conditions in the existing technology, resulting in inaccurate grouting parameter settings and unstable construction quality, is solved.

The present disclosure provides a kind of for high mountain and valley area's side slope crack inspection method and device, equipment, medium, it is related to dam side slope safety inspection technical field.The method comprises: control inspection unmanned plane to collect the fusion three-dimensional terrain data corresponding to dam side slope with first resolution, and filter local topographic change area, to obtain local crack fine inspection route in combination with crack inspection route planning model;Based on the route control inspection unmanned plane to carry out adaptive route dynamic programming, to complete fine inspection to crack terrain with second resolution, obtain millimeter level crack inspection data.This scheme realizes one-time inspection to dam side slope, the process of patrol has coarse and fine, inspection coverage is whole and has pertinence millimeter level fine crack inspection to key area, improve identification accuracy, and one-time inspection can complete the inspection of all key attention areas of dam side slope area, effectively increase the endurance time of inspection unmanned plane, reduce redundant inspection data amount.

The present application relates to the technical field of hydraulic engineering landscape design, and particularly relates to a canyon short tower cable-stayed flume design method based on landscape optimization and a program product, the method comprising: constructing a parameterized three-dimensional geometric model of the cable-stayed flume; obtaining a qualified model meeting a structural safety standard; fusing the qualified model into a canyon three-dimensional digital scene and obtaining a flume scene rendering image under a preset viewing point; constructing a landscape evaluation index system and quantitatively calculating a landscape comprehensive evaluation index according to the landscape evaluation index system; the present application realizes organic integration of the flume and the canyon landscape, and provides a theoretical basis and a practical design path for landscape-oriented structure design of similar complex topography hydraulic engineering.

The present invention discloses a reverse construction structure and construction method for a multi-arch tunnel under steep cliff conditions, including a multi-arch tunnel entering the steep cliff, a separated tunnel provided on one side of the multi-arch tunnel, and a construction transverse tunnel arranged along the side of a deep "V" canyon; and the multi-arch tunnel, the separated tunnel, and the construction transverse tunnel intersect and connect with each other. By adding the construction transverse tunnel, the multi-arch tunnel and the separated tunnel can be constructed synchronously and reversely according to a pre-set construction process. The present invention has a simple structure and high construction convenience, which can ensure efficient and safe construction while reducing construction cost investment; and by adding the construction transverse tunnel, reverse construction can be carried out from the inside, without the need for large-scale excavation and brushing outside the tunnel, thus avoiding environmental damage, and having high construction safety. It can also achieve simultaneous construction of multiple faces, which can greatly improve the construction progress of the project and increase efficiency.

The application provides a kind of suitable for canyon type riverbed side type water inlet / outlet grading dredging and desilting system and method, including primary desilting structure and secondary dredging facilities;The primary desilting structure is arranged in the lower reservoir river channel section position between the lower reservoir dam and the lower reservoir sand dam, and the section side is the rear slope of the water inlet / outlet, and the other side is the opposite bank slope;The secondary dredging facilities are used to process the silt accumulated in the front pool and the reverse slope section due to the over-standard flood. In the direction from the rear slope to the opposite bank slope, it includes side type water inlet / outlet, front pool, reverse slope section, sand dam and desilting channel in turn. The primary desilting structure is used to dredge the silt of the frequently encountered flood;The application effectively solves the silt accumulation problem of the front edge and the reverse slope section of the side type water inlet / outlet of the canyon type riverbed through the grading management mode of "structure sand blocking and guiding as the main, mechanical dredging as the auxiliary", and ensures the safety and reliability of long-term operation.

The present invention relates to the technical field of water conservancy project construction, and in particular to a canyon deposit curtain grouting construction method and apparatus capable of enhancing structural strength, which comprises: obtaining the rock and soil porosity, permeability, and temperature change rate of the canyon deposit area; constructing a deposit geological model based on the rock and soil porosity, permeability, and temperature change rate, and determining grouting parameters based on the deposit geological model; drilling grouting holes according to the grouting parameters, injecting a composite slurry into the grouting holes, monitoring and adjusting the grouting parameters in real time, and adjusting the slurry properties according to temperature changes. After the grouting is completed, the structural integrity and impermeability of the curtain body are tested and evaluated, and if they do not meet the requirements, supplementary grouting is performed. This solves the problems of uneven grouting structural strength in complex geological environments and the impact of temperature changes on slurry properties in the prior art.

The invention discloses a high mountain and valley area landslide risk monitoring method and system based on single-rail InSAR data, and relates to the technical field of high mountain and valley area landslide monitoring, and the method comprises the steps: obtaining single-rail visual deformation dot matrix data and digital elevation model data of a target area in each stage; calculating to obtain a regional gradient; obtaining vertical deformation data; extracting to obtain credible coherent data points; performing data filling of vertical deformation to obtain incoherence initial filling data points, and obtaining incoherence credible filling data points; obtaining a credible deformation time sequence point cloud picture corresponding to the observation period; and obtaining periodic deformation data of the target area in the observation period based on the credible deformation time sequence point cloud atlas. According to the method provided by the invention, the missing data points of the InSAR caused by shooting shielding are not filled and repaired, and the missing data points of the InSAR caused by landslide related physical reasons are filled and repaired, so that the landslide risk identification data volume is increased, and the landslide risk identification precision is improved.