52 results about "Cliff" patented technology

The invention discloses a steep cliff three-dimensional modeling method and system based on structural plane constraint, and relates to the technical field of three-dimensional geographic information system.The steep cliff three-dimensional modeling method comprises the steps that steep cliff area geological data including steep cliff multi-view images and steep cliff surface dense point cloud data are collected, and a geological prior knowledge base is constructed; an image recognition technology is used for processing a steep cliff multi-view image, point cloud geometric analysis is combined, and the structural plane spatial orientation including a rock stratum interface and a joint plane is recognized. According to the method, geological priori knowledge is fused, the geometric distortion problem of a traditional digital elevation model in a cliff area is effectively solved, the spatial orientation of a rock stratum interface and a joint surface is extracted by using an image recognition technology, and the spatial orientation is used as a hard constraint condition to construct a control triangulation network framework; the problems of forced smoothing errors of a regular grid DEM and a suspended surface of a triangular irregular network are avoided, and the rock stratum structure, the crack distribution and the dangerous rock body form of the cliff can be precisely restored through the self-adaptive triangulation algorithm.

The application discloses a cliff three-dimensional modeling method and system based on structure surface constraint, relates to the technical field of three-dimensional geographic information systems, collects cliff regional geological data including cliff multi-view images and cliff surface dense point cloud data, and constructs a geological prior knowledge base; image recognition technology is used to process the cliff multi-view images, combined with point cloud geometry analysis, to identify the spatial orientation of structure surfaces including rock layer interfaces and joint surfaces. The application effectively solves the geometric distortion problem of traditional digital elevation models in cliff regions by fusing geological prior knowledge, uses image recognition technology to extract the spatial orientation of rock layer interfaces and joint surfaces, and uses the spatial orientation as a hard constraint condition to construct a control triangular net framework, thereby avoiding the forced smoothing error of a regular grid DEM and the overhanging surface problem of an irregular triangular net, and through an adaptive triangular division algorithm, the rock layer structure, crack distribution and dangerous rock body shape of the cliff can be accurately restored.

The invention discloses a cliff rock wall planting groove which comprises a bottom plate, the bottom plate is made of granite materials, a long edge of the top face of the bottom plate and two short edges adjacent to the long edge are fixedly connected with side plates which are mutually sealed, and at least two connecting blind holes are formed in the side face, away from the side plates, of the bottom plate. Reinforcing steel bars are fixedly inserted into the connecting blind holes respectively, a rock hole is formed in the wall surface of the cliff rock wall, at least two mounting holes in the same level are further formed below the rock hole, and the outer end parts of the reinforcing steel bars are fixedly inserted into the corresponding mounting holes, so that a containing cavity with an opening in the top is defined by the wall surface and the planting groove; soil is manually added into the containing cavity and the rock holes to plant plants, and root systems of the plants grow into the rock holes; the bottom plate and the side plates which are made of granite are arranged, the connecting blind holes are formed in the bottom plate, the reinforcing steel bars are inserted into the connecting blind holes to be fixed into the mounting holes preset in the rock wall, and stone glue is combined for bonding, so that the anti-weathering and anti-corrosion performance is good, and the service life is long.

The present application relates to the technical field of self-propelled devices, and discloses a method for preventing a self-propelled device from falling. The method comprises: determining an environmental map corresponding to an operating environment and a historical trigger record of the cliff sensor in the operating environment based on at least one task execution result of the self-propelled device in the operating environment, wherein the environmental map is marked with an unreachable region; determining a task activity forbidden region for the self-propelled device based on the unreachable region and the historical trigger record; and controlling the self-propelled device to perform a preset task outside the task activity forbidden.

This invention discloses a construction method for a suspended pier on a steep mountain slope, comprising the following steps: (1) excavating and leveling a multi-tiered construction platform from top to bottom on the upper part of the steep slope; (2) excavating the lower construction platform step by step according to the actual situation; (3) excavating pile foundations at each tier of the construction platform; (4) extending the steel casing after the pile foundation excavation is completed and pouring pile foundation concrete; (5) installing a bracket structure on the top of the extended steel casing; (6) constructing the formwork and binding the reinforcing bars for the pier; (7) pouring and curing the concrete for the pier; and (8) dismantling the bracket structure except for the clamps. This invention is designed for piers located in mountainous areas with complex topography, large ground undulations, and located on cliffs with the bottom part suspended, improving the safety and efficiency of construction of suspended piers on cliffs, reducing damage to the original topography, and achieving green construction.

The invention discloses a multi-level dynamic toughness coast protection system and a design method, and the system sequentially comprises, from sea to land, a leading edge self-adaptive buffer zone which is arranged at a seabed scarp at the leading edge of a main seawall, is made of a discrete material, and is set to dynamically adjust the form to a stable profile under the action of hydrodynamic force; the offshore submerged siltation promotion and wave absorption barrier is arranged behind the front edge self-adaptive buffer zone in parallel, the crest elevation of the offshore submerged siltation promotion and wave absorption barrier is located near the average tide level, and the offshore submerged siltation promotion and wave absorption barrier is arranged to reduce wave energy and form a siltation promotion area between the offshore submerged siltation promotion and the main seawall; the artificial bionic wave absorbing beach reef system is formed in the siltation promotion area, has the width and the elevation simulating a natural reef and is arranged to break waves in advance so as to dissipate wave energy; the ecological composite section main body protection structure serves as ultimate protection and is provided with a gentle slope or a composite section. According to the method, the safety, the reliability and the economical efficiency of an engineering scheme are ensured.

The present invention discloses a pier tie beam structure and a construction method thereof, which relate to the field of bridge technology. The pier tie beam structure comprises: a cap beam; a first pier column and a second pier column connected below the cap beam to support the cap beam, the first pier column having a bottom located at the bottom of a cliff, and the second pier column having a bottom located at the top of the cliff; a tie beam and an anchoring unit, wherein one end of the tie beam is connected to the first pier column, and the other end of the tie beam is fixed to the side wall of the cliff via the anchoring unit. This application can solve the problem in mountainous bridges where the same pier needs to be provided with bridge piers at the top and bottom of a cliff with a large height difference, and the tie beam connection cannot be performed, and the stability and safety of the higher pier at the bottom of the cliff cannot be guaranteed.

The invention discloses a multi-source land and water terrain seamless coupling modeling method and system based on river section constraint. The method comprises the following steps: 1, preparing and preprocessing multi-source data to generate a constraint line; 2, constructing a TIN model based on topological constraints: eliminating a step effect; 3, performing two-stage seamless elevation coupling on the TIN model to prevent cliff type sudden change caused by elevation value difference, wherein the two stages are an elevation difference interpolation high-precision fusion realization stage and a curvature-based iterative smooth local sudden change elimination stage; and 4, model output: outputting the final seamless elevation coupled TIN model as a standard GIS format for hydrodynamic simulation or visualization application. According to the method, real seamless coupling is achieved, geometric discontinuity is solved through topological constraint TIN, elevation value difference is solved through two-stage fusion, and the step effect and the suspension phenomenon at the junction of water and land are fundamentally eliminated.

The utility model discloses a tunnel exit dangerous rock and accumulation body protection system, and relates to the technical field of tunnel engineering. The tunnel exit dangerous rock and accumulation body protection system comprises an upward slope, and the upward slope comprises an accumulation body section and a steep cliff section located above the accumulation body section; a pile slab wall is embedded in the bottom of the accumulation body section, a passive protective net located above a tunnel exit is arranged in the middle of the accumulation body section, a first stone blocking wall is arranged on the top of the accumulation body section, and an active flexible protective net which extends upwards and is fixed to the surface of the steep cliff section is connected to the first stone blocking wall. According to the tunnel exit dangerous rock and accumulation body protection system provided by the embodiment of the invention, the tunnel exit dangerous rock and accumulation body are protected by utilizing a multi-stage protection system, the protection capability is relatively high, and comprehensive and effective protection can be provided even in the face of complex and changeable geological conditions and rockfall scales.

Disclosed are a control method and apparatus for a cleaning device, and a program product, a medium and a cleaning device. The method comprises: acquiring current pose features of a cleaning device; on the basis of the current pose features of the cleaning device, determining a cliff determination threshold value, wherein the cliff determination threshold value is a critical height value for triggering the cleaning device to execute a cliff avoidance action; and on the basis of the cliff determination threshold value, determining whether to trigger the cleaning device to execute the cliff avoidance action.

An adjustable electronic fence sensor structure comprises a base, a lower adjusting support, a middle adjusting support, a lower connecting piece, an upper connecting piece and an induction rod. The strip-shaped holes in the base can adapt to pit terrains or cliff terrains; through the upper connecting piece and the lower connecting piece, a certain angle can be formed between the sensing rod and the ground, the design can be applied to more complex terrains in cooperation with the base, meanwhile, the sensing rod can rotate and be adjusted in the axial direction, signals can be better transmitted and received, and the false alarm rate is reduced. The sensor is vertically arranged, so that the sensing area is increased, and the missing report phenomenon is reduced.

The utility model provides a buckle hanging system used for steep cliff wall arch bridge hoisting, the buckle hanging system comprises a vertical pile foundation, a bearing platform, anchor cables and a buckle cable, the anchor cables and the buckle cable are arranged on the bearing platform in a penetrating mode, the buckle cable is located in the middle of the bearing platform, and the anchor cables are symmetrically distributed on the two sides of the buckle cable; the bearing platform is connected with a plurality of vertical pile foundations. The steep cliff arch bridge supporting structure has the advantages of being suitable for various steep cliff arch bridges, reasonably utilizing topographic conditions, reducing excavation of mountains, reducing construction difficulty, shortening construction period and being capable of remarkably saving cost.

A suspended platform and its installation method are disclosed for anchoring unstable rock masses on steep cliffs. The platform includes a suspended platform, a lifting work platform, and a lifting cable system. The suspended platform includes a base plate, side railings, anti-collision tracks, a telescopic support sliding device, detachable anchor legs, a shock absorption device, and a power failure sensor. The lifting cable system includes a winch, cables, and shear anchor piles. The suspended platform is suspended from the free face by the lifting cable system, which is fixed to the ground by the shear anchor piles. The lifting work platform is installed inside the suspended platform to provide a platform for vertical movement. The telescopic support sliding device is used for sliding the suspended platform on the rock wall. The detachable anchor legs are used for connecting or separating the suspended platform from the rock wall. This invention enables timely separation of the suspended platform from the rock mass, mitigates damage to the work platform when the unstable rock mass collapses, and provides a work platform for reinforcing unstable rock masses on steep cliffs with high free faces.

The invention discloses a river channel large-section measurement method based on airborne laser radar and unmanned ship depth measurement. The unmanned aerial vehicle carries a laser radar to scan landforms on both banks, and the unmanned ship equipped with a single-beam depth finder is synchronously utilized to obtain underwater landforms; the data is subjected to space-time reference unification, point cloud calculation and classification and underwater data post-processing, fusion is carried out in a point cloud data processing system, and large-section data extraction and generation are carried out. Through man-machine cooperation, a 24 km river channel large-section task is completed in 3 days, and compared with a traditional RTK + manned ship depth finder, the efficiency is improved by 5 times. The method is suitable for large-scale river channel large-section measurement work, and is especially suitable for complex environments such as cliff steep banks, shoals, torrent and the like where manpower or manned ships cannot reach, the safety of operators is improved, and centimeter-level three-dimensional data is provided for water conservancy planning, flood control and disaster relief and engineering construction.

The invention relates to the field of buckle cable ridges, in particular to a buckle cable ridge construction method used under the steep cliff wall condition. Pile foundation locking opening construction of the buckle rope ground ridge is carried out; constructing a pile foundation and a bearing platform bracket foundation under the ground of the buckle cable ridge; constructing a pile foundation and a bearing platform bracket above the ground of the buckle cable ridge; and carrying out bearing platform construction on the buckle cable ridge. According to the construction method, when no large hoisting equipment exists, a construction platform, namely a pile foundation locking opening, can be directly poured on the steep cliff slope surface only by adopting a mode that small temporary facilities are matched with manual work, after pile foundation excavation is completed, a bearing platform support foundation and the pile foundation are synchronously poured into a whole, then a bearing platform support is installed to construct a bearing platform, and construction of the buckle cable ridge is completed; the bearing platform construction load is transmitted to the bearing platform support foundation through the bearing platform support and directly transmitted to the pile foundation, the problems that excavation of a mountain is conducted, and additional treatment is needed due to insufficient foundation bearing capacity are solved, and meanwhile environmental damage is reduced; the method is simple in step, convenient to operate and good in effect.

This invention belongs to the field of paleontological fossil site protection and geotechnical engineering reinforcement technology, specifically involving a modified glutinous rice grout material combination and systematic method for reinforcing and repairing cliff slopes of paleontological fossil sites. The combination includes Reinforcement Type I (A liquid:B liquid = (3-4):1, used for grouting) and Weathering Prevention Type II (A liquid:B liquid = (3-4):1 + 0.5-2% light stabilizer + 0.1-1% UV absorber, used for spraying). The method includes geological survey, 3D modeling, low-pressure micro-grouting (pressure < 0.5 MPa, pore size < 20 mm), micro-anchoring (pore size 30-40 mm), and surface spraying (pressure < 1 MPa). The two grouts are used together to achieve internal reinforcement and surface protection respectively. After curing, they are colorless and transparent, maintaining the authenticity of the landscape and achieving micro-damage construction and reversible repair.

The invention relates to a full-load loading test device for simulating pile-slope-soil collaborative deformation, and belongs to the technical field of rock and soil model tests. The device comprises an assembled model box, a full-load coupling loading system and a collaborative deformation monitoring system, a multi-angle abrupt slope reserved groove is formed in the inner wall of a side plate of the assembly type model box, an abrupt slope terrain plate can be inserted into the groove, and a variable gradient and cliff terrain is formed; the full-load coupling loading system can apply seepage-rainfall-earthquake-up-pull-horizontal load synchronously / in a time-sharing manner; the collaborative deformation monitoring system is used for synchronously obtaining deformation and stress data of the pile, the slope and the soil. The in-situ abrupt slope shape can be truly simulated, the advantages of load mode comprehensiveness and collaborative deformation quantifiability are achieved, and a real, comprehensive and accurate physical test basis is provided for design of power transmission towers and slope supporting micro piles in mountainous areas.

The embodiment of the application provides a mountain area geophysical prospecting construction difficulty determination method, device, equipment and storage medium, the method comprises the following steps: determining the relief, slope, cliff, gully and traffic target difficulty weight of the work area; obtain the construction difficulty coefficient of the relief, slope, cliff, gully and traffic of the target work area; according to the construction difficulty coefficient of the relief, slope, cliff, gully and traffic of the target work area and the target difficulty weight, the construction difficulty coefficient of the target work area is determined, the key factors influencing the construction difficulty in the mountain area are preferably determined, the weight of each key factor is determined, and the construction difficulty coefficient of the whole target work area is obtained, which provides more objective support for the economic and technical integrated evaluation work of seismic exploration acquisition project.

The utility model discloses a blast hole arrangement structure for mine open-air slope stepped hole blasting. A plurality of rows of through holes are formed in each step. The pitch a of each row of through holes is 4 meters, and the row pitch b is 3 meters; the tops of the first row of holes are 6 meters away from the cliff edge; the tops of the second row of holes are 9 meters away from the cliff edge; the top of the third row of holes is 12 meters away from the cliff edge; the top of the fourth row of holes is 15 meters away from the cliff edge; the top of the fifth row of holes is 18 meters away from the cliff edge; the hole depth of each row needs to ensure that the distance between the hole bottom and the cliff edge is larger than 1.8 m and the distance between the hole bottom and the slope bottom is larger than 2.57 m. According to the arrangement structure, the position, close to the edge and the boundary, of the side can ensure the stability of the side and the excavation progress after explosion; the structure is easy to construct and operate, the theory is popular and easy to understand, occurrence of rock walls, root bottoms and large blocks after explosion is reduced, and the slope cutting cost and the slope cutting time are reduced; according to the structure, the post-treatment time after explosion is greatly shortened, meanwhile, the post-treatment cost is reduced, and favorable conditions are created for smooth construction after explosion.

1. Name of the designed product: hanging ornament ("Cloud and Cliff Mountain" - combined colored porcelain handicraft intelligent card). 2. Use of the designed product: for decoration. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view. 5. The bottom view has been shown in the submitted view, and the bottom view is omitted.

The application provides a gradient-driven adaptive encryption and multi-scale morphological fusion DEM modeling method, including the following steps: (1) extracting a basic bottom seed model according to a lowest point strategy, calculating the gradient intensity of the terrain by using a difference method, and realizing adaptive encryption of the cliff grid based on the mean value and standard deviation of the gradient module length in the full-survey grid and the morphological grid; (2) performing morphological operation on the original grid point cloud data that has not been encrypted, and only retaining the unencrypted point cloud and interpolated point cloud information in the morphological result; (3) performing morphological operation on the encrypted grid point cloud data, and still only retaining the morphological result of the encrypted grid point cloud data; (4) merging the original-encrypted grid point cloud data, assigning values to the boundary area of the unencrypted original grid and the encrypted grid by using an elevation average weighted fusion method, and finally generating a mining area DEM model. The application realizes accurate and efficient removal of the ground object target in the DEM model and full-factor retention of the cliff area feature information by constructing a "dynamic encryption-multi-scale fusion" two-level progressive technical framework.

The present application provides a kind of wave to straight wall type rock slope impact force evaluation method, comprising the following steps: S1 according to the main form of straight wall type rock slope, constructs numerical model;S2 according to actual marine environment, sets boundary condition to numerical model;S3 selects the numerical calculation method suitable for wave and rock slope interaction, sets numerical simulation program;S4 runs numerical simulation program to simulate the stress-strain response of rock slope under wave action;S5 combines specification calculation result to analyze numerical simulation result;S6 according to actual working condition, evaluates the impact force of wave to straight wall type rock slope.The present application can use numerical simulation method to simulate and calculate the impact force of wave to straight wall type rock slope, and according to specification calculation result and actual working condition, evaluates the impact force of wave to straight wall type rock slope, provides a more standardized, effective and intuitive evaluation method to evaluate the influence of wave on rock slope stability and govern rock slope, to guide actual marine engineering construction work.

The embodiment of the invention provides a control method, device and system of a self-moving device and a computer readable storage medium, at least one driving wheel and at least three cliff sensors located on the front side of a first axis are arranged at the bottom of the self-moving device, and when the first cliff sensor is triggered, the first cliff sensor is triggered; when the first cliff sensor at least comprises one of the left front cliff sensor and the right front cliff sensor, the first reaction action is rotation while retreating; when the first cliff sensor is triggered and the first cliff sensor is a front cliff sensor, or the first cliff sensor at least comprises a left front cliff sensor and a right front cliff sensor, the first reaction action is backward. By adopting the scheme, the self-moving equipment executes the corresponding reaction action according to the triggered cliff sensor, and the reaction action is not fixed but is related to the triggered cliff sensor, so that the working efficiency and effect of the self-moving equipment during task execution can be ensured while the cliff is effectively and safely avoided.

The application relates to a construction method of a foundation near a deep-cut cliff, which comprises the following steps: firstly, carrying out local island construction near the deep-cut cliff in the dry season, and setting a convenient path leading to the bottom of the deep-cut cliff; secondly, installing a cofferdam at a cofferdam construction area, so that the cofferdam, the deep-cut cliff and the original riverbed surface jointly form a water-blocking structure; thirdly, carrying out second full-range island construction between the inner side of the cofferdam and the deep-cut cliff, and forming a bored pile working platform; fourthly, carrying out bored pile construction on the bored pile working platform; and finally, carrying out a bearing platform construction. The method makes full use of the advantages of the near shore, introduces the convenient path from the bottom of the deep-cut cliff in the dry season, enters the cofferdam through the convenient path in the later period, changes water construction into pure land construction, greatly saves the construction cost, makes full use of the dry season construction advantage, only needs to carry out local island construction to meet the cofferdam installation condition, and can quickly form an operation surface after the construction access is formed; and the cofferdam and the deep-cut cliff jointly form the water-blocking structure, and the topographic features of the deep-cut cliff are fully utilized.

The invention belongs to the technical field of seismic exploration data acquisition, and discloses a seismic exploration steep cliff identification method and device based on a construction direction, and a storage medium, and the method comprises the steps: constructing a unit gradient objective function through employing digital elevation model data; according to the in-line direction and the cross-line direction, the gradient of each grid is sequentially extracted through an objective function, and the gradient value of each unit grid in the in-line direction and the gradient value of each unit grid in the cross-line direction are obtained respectively; when the slope threshold in the in-line direction is set to be more than 60 degrees and the unit grid value S is more than or equal to 60, a light loading process cliff map is formed by using image binarization, and when the slope threshold in the cross-line direction is set to be more than 50 degrees and the unit grid value S is more than or equal to 50, a reloading process cliff map is formed. The device comprises a digital elevation model data extraction module, a gradient calculation module and an image output module. The storage medium is used for storing a computer program for executing the method. According to the method, the light-loading process drawing and the heavy-loading process drawing are separated, so that the distribution condition of the steep cliff can be scientifically and comprehensively known.

The application discloses a method for predicting the maximum depth of a cliff top crack of a sea cliff under extreme sea conditions, which comprises the following steps: obtaining the gravity of a cliff top structure; obtaining the height of the structure above the ground; obtaining the maximum wind speed; obtaining the wind force acting on the structure; obtaining the average water depth, wave height and wave duration in front of the sea cliff; obtaining the trough height, trough depth and sea cliff height of a sea erosion trough; calculating the average wave pressure of waves acting on the cliff face above the average water depth; calculating the seawater infiltration rate of the sea cliff soil; calculating the seawater infiltration distance of the sea cliff above and below the average water depth; obtaining the natural and saturated specific gravity of the cliff soil; obtaining the cohesion and internal friction angle of the cliff soil; calculating the seawater infiltration volume in the cliff; calculating the weight of the cliff after seawater intrusion; obtaining the cohesive friction strength of the cliff soil; obtaining the maximum crack depth provided by the cohesive friction strength and tensile strength; and calculating the maximum depth of the cliff top crack.

The purpose of the present invention is to ensure the attitude stability of a work machine in consideration of the influence of cliff-like topography on the attitude stability of the work machine. The work machine is provided with: a posture detection device for detecting the inclination angle of the work machine and the rotation angle of the upper rotation body; a periphery detection device for detecting the surrounding terrain; and a control device for controlling the work machine. The control device is provided with: a cliff determination unit that determines whether or not there is a step edge around the work machine on the basis of the detection result of the surroundings detection device; a center-of-gravity calculation unit that calculates the center-of-gravity position of the work machine on the basis of the detection result of the attitude detection device; and a stabilization support unit that supports attitude stabilization of the industrial machine. When the distance between the step edge and the center-of-gravity position is equal to or less than a threshold value, the stabilization support unit causes the notification device to give an alarm or restricts the operation of an operator whose center-of-gravity position is close to the step edge as support for attitude stabilization.

The present invention relates to a barrier plate support device that allows barrier plates installed to block water or sediment flowing in due to floods, heavy rain, or landslides to be connected to each other, as well as to support the barrier plates to maintain an upright state. By equipping this device with various convenience and safety functions, the invention relates to a barrier plate support device that can be applied in various fields, such as a support for a no-entry sign to control the entry of people or vehicles into dangerous areas like road sinkholes or cliffs, as well as in the aforementioned situations, and a support for a fence installed to protect facilities and property.