177 results about "Mountainous terrain" patented technology

The invention relates to a mountainous area highway landslide risk evaluation model. The method is based on the theory of fuzzy mathematics, uses fuzzy comprehensive evaluation method, Delphi method, analytic hierarchy process and other methods to calculate the membership influencing hazard and vulnerability of highway side slope so as to obtain index evaluation level of hazard and vulnerability of slide slope risk, on the basis, adopts method of risk evaluation matrix to carry out risk evaluation of talus side slope. The model can predict, recognize, assess and analyze the slide slope risk of side slope that is possible to meet, and on the basis effectively cope with the risk to avoid or reduce the hazard of landslide geological disaster on national economy and life and property of people, and can take measures such as corresponding prevention and treatment on the basis of judgment and prediction of development and change trend of the landslide body.

The invention discloses a dynamical model modeling method of vehicle driven on mountainous road, for solving the technical problem in the current vehicle dynamical model modeling method that has bad adaptability caused by a plane driven vehicle. According to the technical solution, the vehicle dynamical model driven on the mountainous road is built by means of an operation dynamical model and a tire model of the vehicle, a longitudinal velocity and a normal load of each vehicle wheel; the stability of the model is analyzed and the traffic safety of the vehicle on the mountainous road is evaluated according to the built vehicle dynamical model, the acquired vehicle driving state data and the road geometrical information. In the model, the slope angle of the mountainous road, the side rake angle of the road surface while turning and the dynamic change of the normal load of each tire while turning are considered so that the invention reduces or prevents the traffic accident and increases the driving safety of the vehicle on the mountainous road.

The invention discloses a comprehensive arranging method for traffic signs in continuous sharp turn sections of mountain highways. The comprehensive arranging method is characterized in that on the basis of cognitive psychology and man-machine ergonomics principles, warning signs, speed limiting signs and linear inducing signs are determined at the road sections where serious major traffic accidents easily occur, so as to further scientifically and reasonably perform deceleration prompt and induction indication before a driver drives into the continuous sharp turn sections of a mountain. The comprehensive arranging method is a careful and effective arranging method for the comprehensive arranging of the traffic signs at the continuous sharp turn sections of the mountain highways.

The invention proposes a time-series InSAR analysis method for integrating tropospheric atmospheric delay correction, thereby correcting the tropospheric atmospheric delay phase error in surface deformation monitoring of the steep mountainous terrain. In the time series InSAR data processing flow, the tropospheric atmospheric delay correction process is added and specifically, vertical stratification atmospheric delay and turbulent mixing delay are carried out. The vertical stratification atmospheric delay is estimated jointly by using a numerical meteorological model and an iterative linear phase-elevation regression model. According to the iterative linear phase-elevation regression model, a coherent point with deformation is rejected by using iterative execution of a linear phase-elevation regression model, so that only the coherent point without the deformation is kept to calculate the linear model. Therefore, the vertical stratification atmospheric delay correction in the time series InSAR analysis method is realized and thus the iterative linear phase-elevation regression model is not affected by the coherent point target without deformation, so that the interference on the mountain surface deformation signal extraction by the atmospheric delay is reduced effectively.

The invention discloses a device and method for guaranteeing rainy-day driving safety at a mountain-wind crossing road section. The device comprises a laser rainfall detector, a wind-speed and wind-direction detector, a data processor, an emitting and receiving antenna and an LED variable-information message plate. The method specifically comprises the steps that meteorological data of the mountain-wind crossing road section of a highway in a mountain area is collected; a short time window is taken as an updating cycle; divided monitoring sections are established according to different road line types; meteorological data along the route of the divided monitoring sections is collected in real time, wherein the meteorological data includes rainfall, wind speeds and wind direction angle parameters; means of the meteorological data in the short time window are calculated; one this basis, safety representation values of the divided monitoring sections are calculated; a driving safety speed-limiting value is solved based on the safety representation values; safety speed-limiting schemes are formulated; and speed-limiting information is released in combination with the variable-information message plate in real time.

The invention discloses a mountainous terrain deformation extraction method based on PSInSAR. The method comprises the following steps: acquiring multiple high-resolution SAR images through a space-borne satellite, and selecting n SAR images, selecting one as main image by adopting comprehensive coherent coefficient and other as auxiliary images; enabling the main image to register each auxiliaryimage and performing interference processing, and acquiring a coherent coefficient map and an interference phase map; selecting a PS point by adopting the corresponding amplitude deviation and coherent coefficient double threshold method according to the coherent coefficient map, and obtaining a PS point triangulation network; performing de-planarization filter on the interference phase map, and performing differential processing on the interference map by using external DEM data, thereby obtaining a differential interference map; and performing phase unwrapping on the differential interference map by using three three-dimensional irregular network phase unwrapping methods: a network adjustment method, a pseudo-3D phase unwrapping method and a Lambda algorithm, thereby obtaining a final deformation field.

Tree processing equipment with two position pivot point for actuator ends includes a retention bracket, a processing head and at least one actuator. A bottom of the retention bracket is pivotally attached to the processing head. One end of the actuator is pivotally attached to the retention bracket and an actuation end is pivotally attached to the processing head. A first pivot hole and a second pivot hole are formed through the processing head or the retention bracket. A pivot pin is inserted through an actuator end and the first pivot hole for harvesting and processing in normal terrains. The pivot pin is inserted through one of the actuator ends and the second pivot hole for processing trees in mountainous terrains.

The invention discloses a lateral pile-plank structure suitable for a rocky abrupt-slope embankment. According to the lateral pile-plank structure, reliable retaining is provided for an abrupt-slope road in a mountain area, the transverse stiffness coordination of the road bed is effectively controlled, non-uniform settlement is avoided, the operation comfortableness of an expressway or high-speed railway is improved and safety accidents are avoided. The lateral pile-plank structure comprises cantilever piles (3), reinforced concrete slabs (2) and fills, wherein the cantilever piles (3) are arranged on the lower side of the abrupt-slope embankment, in the extending direction of the embankment, at intervals; the lower parts of the cantilever piles (3) are anchored in a rock body; the reinforced concrete slabs (2) are laid below a pavement structural layer (1); the outer ends of the reinforced concrete slabs (2) are fixedly connected with the tops of the cantilever piles (3); the fills are placed at the rear parts of the cantilever piles (3); geogrids (4) are vertically laid in the fills in a layering manner.

By means of tomograhic radar technique consisting of a coherent combination of large numbers of synthetic aperture radar images acquired by several air or space SAR systems having different look angles, a real three-dimensional imaging of volume scatterers is achieved. This allows the separation of the backscattered signal of volume scatterers in the height direction which can be further evaluated independently. The invention can be put to use in the three-dimensional analysis of vegetation layers and ground strata, but also for imaging and mapping of buildings, urban areas and mountainous terrain.

The invention relates to a rail-mounted tea picking robot for hilly and mountain areas and belongs to the technical field of agricultural picking machinery. The rail-mounted tea picking robot for thehilly and mountain areas comprises a platform, a driving device, a lifting device installed on the platform, a mechanical arm installed on the lifting device, and a picking hand installed on the output end of the mechanical arm. The robot is used in the hilly and mountain areas, the driving device drives the whole platform to move along a rack rail in the hilly and mountain areas, the lifting device drives the whole mechanical arm to ascend or descend, and thus the height of the picking hand is increased or decreased to adapt to the heights of different tea; and then a first rotating motor candrive the whole mechanical arm and the picking hand to rotate in the vertical direction, the mechanical arm can expand the picking range of the picking hand, a second electric pushing rod works, stems of the tea are shorn off, and the tea is clamped through a clamp and then placed in a proper place. The rail-mounted tea picking robot can be used for picking the tea in the hilly and mountain areas.

The invention discloses a wireless sensor network node locating method and a device. The method comprises the following steps: S1, calculating the average per-hop horizontal distance of each anchor node in a to-be-detected area; S2, calculating the average hop distance correction value of each anchor node; S3, calculating the corrected average per-hop horizontal distance of each anchor node according to the average hop distance correction value and the average per-hop horizontal distance thereof; S4, calculating the horizontal distance from an unknown node to an anchor node around the unknown node, and determining the plane coordinates of the unknown node according to the horizontal distance and the plane coordinates of the anchor node around the unknown node; and S5, determining the 3D coordinates of the unknown node according to a 2D electronic grid model and a 3D electronic grid model of the to-be-detected area and the plane coordinates of the unknown node. The precision of location in mountainous terrains can be improved greatly. The requirements of practical application can be satisfied.

The invention discloses a mountainous area expressway snowfall environment early warning system. The system is formed by the following function systems of an information monitoring and collection system, an information processing system, a decision support system, an information release system, and an evaluation system which are connected to a communication system. A meteorological information monitoring and collecting sensor, a pavement condition information monitoring and collecting sensor, and a traffic flow detecting sensor are integrated into one body and are arranged in the unfavorable section of a mountainous area expressway so that a defect that a current highway meteorological monitoring station does not adapt to road area environment uniqueness, suddenness and regional performance is effectively overcome. Meteorological information, pavement condition information, and traffic flow information data are collected in real time and data support is provided for the information processing system. According to the analysis result of the information processing system, the decision support system considers safety, a traffic level and an economic index, comprehensively determines relatively optimal safety management countermeasures, and transmits to the site for release through the information release system. The safe and high-efficiency operation of a vehicle under a snowfallenvironment is finally realized.

The invention provides a stability control method for mountainous area weak surrounding rock small-distance tunnel mid-adjacent rock. The method includes the steps that firstly, a geological survey report is looked up to determine the level of geological surrounding rock of a construction site, a tunnel design and construction scheme is looked up to determine the thickness of the mid-adjacent rock and the span of a single hole of a tunnel, and whether engineering conditions required by the method are met or not is judged; secondly, the tunnel design and construction scheme is looked up to determine the height of the mid-adjacent rock, the steel arch distance and the type and flange width of I steel adopted by steel arches, and the geological survey report is looked up to determine the surrounding rock porosity; thirdly, machining parameters of small grouting ducts and advanced grouting pipes are determined; fourthly, machining parameters of longitudinal steel beams are determined; fifthly, advanced grouting reinforcement is constructed; and sixthly, longitudinal steel beam reinforcement is constructed. By means of the stability control method, the deformation and the load acting on a support structure of the small-distance tunnel mid-adjacent rock are effectively reduced, the stability of the steel arches is improved, shearing stress caused by asymmetrical construction of advanced tunnels and subsequent tunnels is reduced, the support structure is reinforced, and the construction process is simplified.

The invention discloses a drone route planning method in a mountainous area with the flight safety degree being restrained. The drone route planning method comprises the following steps that 1, a Voronoi pattern is built by combining the starting point, the target point and the position where a barrier is located, the initial solution of the route is formed; 2, a rectangle is formed by taking thestarting point and the ending part as diagonal lines, and the areas in the rectangle are the flight routes; 3, a dangerous area, a relatively safe area and a safe area are drawn by taking the barrieras the circle center, and the route safety is estimated; 4, screening is conducted according to different route safety requirements and the effect range route of a threatening area, and the route which cannot meet the safety requirement is excluded; and 5, the rest routes are equivalent to a network drawing, the shortest route is selected by using Dijkstra algorithm. The drone route planning method has the advantages that 1, the route can be selected according to the different safety requirements; 2, the feasible solutions are screened by combining the safety requirement of the route, the complexity of the network drawing is lowered, and the calculation rate of the Dijkstra algorithm is improved; and 3, the safety of the route is directly reflected.

The invention discloses a method for improvement and protection of a spur dike channel of a mountain river. The method comprises the steps that (1) the channel improvement water level and the channel improvement line width are determined according to the direction of the channel, the planned line form, the hydrological characteristics of the river, the riverbed components and the erosion and deposition evolution characteristic, and (2) the position and the length of a spur dike are determined according to the shipping hindering characteristic of a dangerous shoal and the improvement line width. The method for improvement and protection of the spur dike channel of the mountain river is characterized by further comprising the steps that (3) a dike body structure is laid, wherein a layer of block shaped like the twisted Chinese character 'Wang' is laid on the downstream slope of a dike body; (4) the bottom of the head of the dike is protected; (5) the bottom of the root of the dike is protected; (6) a bank protection structure is arranged. The method is particularly suitable for improvement and protection of the spur dike channel of the mountain river, the strength of the root of the dike and the strength of the head of the dike can be improved, stronger current impact force can be resisted, the overall service life is prolonged, and the method has the advantages of being capable of preventing sediment accumulation, stabilizing a riverbed, protecting the ecological environment and achieving safe flood discharging.

The invention relates to a construction method for assembling a 1000 kV tangent suspension tower through double holding poles. Through the construction method for assembling the 1000 kV tangent suspension tower through the double holding poles, the heavy tower with long cross arms and high crank arms in a 1000 kV ultra high voltage power transmission line is assembled through the double holding poles; when cup-type tangent towers are hoisted, a construction method that outer stay wires are suspended internally and single holding poles are used is adopted frequently, unsafe factors of large dip angles of the holding poles, large included angles between the outer stay wires and the ground, positioning difficulty and the like are caused by the adoption of assembling conducted by internally suspending the outer stay wires and adopting the single holding poles due to the facts that weight is large, crank arms are high and cross arms are large, and no guarantee can be provided for construction safety production. The cup-type tangent tower is hoisted through the double holding poles, so that construction safety risks are greatly reduced, tool transportation in mountainous terrain is facilitated, safety guarantees are provided for tower assembling, and construction efficiency and economic effects of tower assembling are improved.

The invention relates to a double-layer automatically adjustable suspension suitable for hilly mountainous areas. Each of four corner parts of a lower hydraulic pressure independent adjustment suspension is provided with a lower suspension hydraulic function unit, and the middle parts of four beams of a lower suspension is provided with first horizontal sensors; each lower suspension hydraulic function unit is independently controlled, and the levelness of the lower suspension is adjusted in real time according to the monitoring data of each first horizontal sensor; an upper hydraulic synchronous interconnect suspension is fixedly arranged on the upper part of the low suspension, and the upper suspension hydraulic functional units are divided into two groups of upper suspension front framehydraulic functional units and upper suspension rear frame hydraulic functional units, and each group is provided with a synchronous motor; second horizontal sensors are arranged in the middle of thecross beams on both sides of the upper suspension, and a pair of hydraulic cylinders on each of the front and rear sides of the lower suspension are synchronously controlled. The four suspension independently and automatically adjust a driving posture of the vehicle in real time when the vehicle is traveling on the uneven road surface. At that same time, the level of the drive's sitting posture can be kept when the vehicle ascends or descend a slope.

The invention relates to a hydraulic transmission system of a tractor in a hilly mountain area. According to the technical scheme, an engine is connected with a transfer case, the transfer case divides the power into three paths of power, wherein one paths of the power is distributed to a two-way variable plunger pump of a walking driving system, the second path of the power is distributed to a constant-voltage variable pump of a ramp self-adaptation system, and the third path of the power is distributed to a gear pump of a multi-mode steering system through a speed increasing mechanism; the walking driving system uses a single-pump four-motor configuration mode; the multi-mode steering system realizes switching among four modes, namely, a front wheel steering mode, a rear wheel steering mode, a four-wheel concentric steering mode and a four-wheel crab-shaped steering mode; the ramp self-adaptation system can adjust a tractor frame to be in a horizontal state in the uphill and downhillprocess of the tractor; a lifting profiling system ensures working parts to automatically keep the same distance as the ground, and also serves as an active lifting power part of the working parts; ahorizontal profiling system can enable the working parts to be changed and adjusted according to the fluctuation of the terrain; and an intelligent seeding system can adapt to the seeding requirements of different driving speeds and different crops, and the seeding consistency is high.

The invention relates to a method for simulating hydrologic process of the mountain slope scale in a gneiss soil rocky mountain region. The method comprises the steps of division of mountain slope calculation units, distribution of hydro-meteorological data, vegetation interception calculation, infiltration and calculation of water re-distribution process, calculation of flow in soil and calculation of the earth's surface convergence process. The method gives consideration to the situation that earth and stone element mixed media and preferential macro-pore flow widely exist in the gneiss soil rocky mountain region, on one hand, a macadam shape factor epsilon and macadam mass ratio factor Rv are introduced to quantify the influence of the earth and stone element mixed media on the mountain slope water circulation process, on the other hand, the calculation units are divided into preferential macro-pore flow zones and matrix zones based on the division of the mountain slope calculation units, and the water circulation processes of the two flow zones are calculated. Based on the improvement, the method for simulating the hydrologic process of the mountain slope scale in the gneiss soil rocky mountain region is provided. The method makes simulation of the hydrologic process of the gneiss soil rocky mountain slope more accurate and be closer to reality.

The present invention belongs to the mountain area driving safety auxiliary technology field, in particular to a mountain area continuous curve downhill double lane road section driving safety prompting device. The mountain area continuous curve downhill double lane road section driving safety prompting device is characterized by comprising a central processor, wherein two vehicle detectors used for detecting whether a vehicle passes are arranged under the road surface of the inner lane of each curve and are located at the two ends of the corresponding curve respectively, and two LED displays used for displaying the vehicle information of the front opposite direction lanes are fixed on the inner road shoulder of each curve and are located at the two ends of the inner side of the corresponding curve respectively; each LED display faces the vehicle coming direction of the inner lane of the corresponding lane, each vehicle detector is in wireless communication connection with the central processor, and the control end of each LED display is connected with the central processor electrically. The mountain area continuous curve downhill double lane road section driving safety prompting device of the present invention has the characteristics of being little in investment, high in precision and reliability, and automated and simple in construction.

The invention discloses a high-steep side slope subgrade structure for a mountain area, which is used for effectively lowering the construction cost of a subgrade in a high-steep mountain area and avoiding the huge potential safety hazard existing in the excavation of a high-steep side slope. The structure comprises reinforced concrete long column piles (1), reinforced concrete short piles (2), reinforced concrete trimmer beams (3) and a reinforced concrete road surface (4), wherein the reinforced concrete long column piles (1) are arranged at the outer side of a high-steep subgrade side slope and are longitudinally arranged at intervals along the subgrade; anchor ropes (5) anchored with bedrock are vertically arranged at intervals on the reinforced concrete long column piles (1); the reinforced concrete short piles (2) are arranged at the inner side of a high-steep subgrade excavation side slope and are correspondingly arranged at intervals in parallel to the outer side reinforced concrete long column piles (1) along the longitudinal direction of the subgrade; the reinforced concrete trimmer beams (3) are fixedly connected with the tops of every group of corresponding reinforced concrete long column piles (1) and reinforced concrete short piles (2); and the reinforced concrete road surfaces (4) extend along the longitudinal direction of the subgrade and are poured on each reinforced concrete trimmer beam (3).

The invention discloses a ground contour following suspension mechanism for a tractor used in hilly and mountainous areas. The ground contour following suspension mechanism comprises a left lifting hydraulic cylinder, a right lifting hydraulic cylinder, an upper pull rod, a left lower pull rod, a right lower pull rod, a limiting hydraulic cylinder and a self-regulating limiting rod. The suspension mechanism has a transverse posture adjustable function, the maximum transverse adjustable gradient of the suspension mechanism can reach 15 degrees, and the tractor can draw a farm instrument to implement ploughing operation in the hilly and mountainous areas. The suspension mechanism can adapt to large longitudinal gradient, the maximum adaptable longitudinal gradient can reach 23 degrees, and requirements of climbing and operation of the hilly and mountainous areas can be met. The suspension mechanism can be used as an executing mechanism of the ground contour following suspension mechanism, with the aid of a terrain following hydraulic control system, ground contour following can be controlled automatically, agricultural requirements of cultivated depth uniformity of operation and gradient adaptation of the hilly and mountainous areas are met further, the operation efficiency can be greatly improved, and the operation quality is improved.

The invention discloses a construction method of an integral overhanging structure compound road, which is suitable for steep mountainous areas, wherein reinforcement concrete columns and walls are cast along the road in certain interval, overhanging beams are arranged on the columns and are cast into one part with the columns and are fixed with the mountains, longitudinal beams and overhanging beams are cast into one part, a pre-made reinforcement concrete slab is laid on the overhanging part of adjacent overhanging beams and is cast into one part with the overhanging beams, the upper surface of the slab is laid on the road surface, the overhanging mountain slope is laid on the reinforcement concrete road surface to assist setting and construction. The construction process of the invention avoids deep cut and high fill, forms road embankment by using whole-casting retaining walls of columns and walls type within the road bed range which is identified and stabilized, uses the overhanging structure to compensate the width-wanting parts of the road; ensures safety, reliability, endurance, reduces the damage on the natural environment as much as possible, does least disturbance on the existing slopes, sustains the slopes self-stabilization, reduces construction quantity, lowers construction difficulty, saves occupancy area, and has good combined technical, economy and social benefits.