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446results about "Protective construction" patented technology

Method for calculating impact force of debris flow and application, and design method of fender pile array

The present application discloses a method for measuring impact force of debris flow and application, and a design method for barrier energy dissipation pile array. The method for measuring vertical impact force of debris flow measures the tangential velocity of debris flow at the impact point to measure the vertical impact force distribution of debris flow on the impact point. Further, the design method for pile array simplifies the free section of energy dissipation pile as a cantilever beam, which generates a bending resistance when impacted by debris flow, and the bending resistance continuously works to dissipate the impact kinetic energy of debris flow. According to the motion characteristics of debris flow, the impact time and distance parameters are further derived to solve the problems of measuring and designing the stability parameters of single energy dissipation pile, the energy dissipation parameters of barrier energy dissipation pile array, and the number parameters of barrier energy dissipation pile array. The present application also provides the application of each measuring and designing method. The present application provides a more scientific and perfect solution for the energy dissipation design of barrier energy dissipation pile array to resist the impact damage of rockfall and debris flow caused by landslide disaster.
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI

Peripheral prevention and control system and method for desert photovoltaic large base

The invention relates to the field of wind and sand prevention and control, in particular to a desert photovoltaic large base peripheral prevention and control system and method. The prevention and control system comprises a main air guide direction prevention and control system and a secondary air guide direction prevention and control system; the main wind direction prevention and control system is sequentially provided with three high vertical sand blocking fences, a lateral anti-lateral quicksand fence, a first sand stabilization grid area with a grid structure, two first plant sand blocking forest belts, a first plant sand stabilization area and a windproof sand blocking dust suppression fence in the direction from the upwind direction to the photovoltaic base. And the secondary wind guide direction prevention and control system comprises a second sand stabilization grid area, a second plant sand blocking forest belt and a second plant sand stabilization area. The sand prevention system can effectively solve the problems that an existing sand prevention technology is low in efficiency, unsustainable and the like, erosion and damage of sand grains to photovoltaic panels and infrastructures are reduced, the power generation efficiency is improved, the maintenance cost is reduced, long-term stable and efficient operation of a desert photovoltaic large base is guaranteed, and powerful support is provided for energy development and ecological protection balance in the desert area.
Owner:NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS

Energy dissipation buffer device for side slope flexible protective net

The invention belongs to the technical field of side slope protection equipment, and particularly discloses an energy dissipation buffer device for a side slope flexible protection net, the energy dissipation buffer device comprises a connecting rod, a connecting cylinder, an elastic piece and a rope, the connecting rod comprises a traction section and an extending section, the extending section is of a screw rod structure, the connecting cylinder comprises a cylinder body and a disc body, a first through hole is formed in the closed end of the cylinder body, and the elastic piece is arranged in the first through hole; a tooth block matched with the spiral groove is arranged on the first through hole; the cylinder body is arranged on the extending-in section in a sleeving manner, and the extending-in section can penetrate out of the first through hole; when the stretching-in section moves along with the traction section and penetrates out of the first through hole, the tooth block slides in the spiral groove, and linear sliding motion of the stretching-in section is converted into rotation of the barrel; the elastic piece is located in the cylinder, one end of the elastic piece is attached to the stretching-in section, the other end of the elastic piece is attached to the cylinder, and one ends of the ropes are fixed to the traction section. The four core pain points of'one-time consumption, low energy dissipation efficiency, high maintenance risk and concentrated local stress' of a traditional slope buffering technology are effectively solved.
Owner:LIAONING UNIVERSITY OF TECHNOLOGY

Landslide buffering and energy absorbing device based on positive and negative Poisson's ratio alternating material

The invention discloses a landslide buffering and energy absorbing device based on a positive and negative Poisson's ratio alternating material, which comprises a protection plate I and a protection plate II which are oppositely arranged, and a positive and negative Poisson's ratio alternating layer is clamped between the protection plate I and the protection plate II; the positive and negative Poisson's ratio alternating layers comprise positive Poisson's ratio honeycomb layers and negative Poisson's ratio honeycomb layers which are alternately arranged in the transverse direction; the elastic modulus of the negative Poisson's ratio honeycomb layer material is not less than that of the positive Poisson's ratio honeycomb layer material; the positive Poisson's ratio honeycomb layer and the negative Poisson's ratio honeycomb layer are connected through a connecting rod layer, and the connecting rod layer is connected with the positive Poisson's ratio honeycomb layer and the negative Poisson's ratio honeycomb layer on the two sides in an attached mode. By reasonably arranging the positive and negative Poisson's ratio alternating layers, the problems of energy absorption and protection of the landslide blocking structure and insufficient rigidity of a single negative Poisson's ratio material are solved, and the blocking structure can be effectively reinforced by applying the positive and negative Poisson's ratio alternating layers to the head-on collision side of the landslide blocking structure.
Owner:HOHAI UNIV

Preparation method of debris flow protection engineering self-repairing concrete part using microorganisms and magnesium oxide

The invention provides a preparation method of a debris flow protection engineering self-repairing concrete part by using microorganisms and magnesium oxide, which comprises the following steps: S1, dipping a porous aggregate base material with the particle size distribution of 1-5mm in a urease-producing microbial agent, and enabling urease-producing microorganisms in the urease-producing microbial agent to fully enter pores of the porous aggregate base material; s2, urea and magnesium oxide are added into the urease-producing microbial agent impregnated with the porous aggregate base material to obtain a mixed solution, the mixed solution is maintained for 2-5 days, the self-repairing aggregate with the particle size distribution ranging from 2 mm to 10 mm is obtained, urea, urease-producing microorganisms, magnesium oxide and water react with one another in the maintenance period, a hardened shell wrapping the outer surface of the porous aggregate base material is generated, and the self-repairing aggregate with the particle size distribution ranging from 2 mm to 10 mm is obtained. Urea and urease-producing microorganisms are retained in pores of the porous aggregate base material, and the hardened shell comprises brucite, basic magnesium carbonate and magnesium oxide which is not completely reacted; and S3, mixing the self-repairing aggregate with the debris flow protection material, and curing to obtain the debris flow protection engineering self-repairing concrete piece utilizing the microorganisms and the magnesium oxide.
Owner:NANJING UNIV

Avalanche triggering system

An explosion chamber for an avalanche triggering system including a lower half-chamber closed at its lower end and having an opening at its upper end, and an upper half-chamber closed at its upper end and having an opening at its lower end. The lower end of the upper half-chamber extends around the upper end of the lower half-chamber, or the upper end of the lower half-chamber extends around the lower end of the upper half-chamber, so as to create at least one gas flow channel. The gas flow channel includes a baffle formed by the lower end of the upper half-chamber and the upper end of the lower half-chamber.
Owner:AVENIR PROTECTIONS

Railway girder-truss integrated bridge shed and construction method thereof

The invention relates to a railway girder and truss integrated bridge shed and a construction method thereof. The railway girder and truss integrated bridge shed comprises low-height prestressed concrete box girders, truss web members, truss upper chords and cast-in-place reinforced concrete plates. The truss upper chord members are positioned on two transverse sides above the low-height prestressed concrete box girder and are longitudinally arranged; the truss web members are arranged on the two transverse sides of the low-height prestressed concrete box girder and are longitudinally inclined, the tops of the truss web members are fixedly connected to the truss upper chord members, and the bottoms of the truss web members are fixedly connected to the low-height prestressed concrete box girder; a cast-in-place reinforced concrete plate is arranged on the top of the truss upper chord, and the bottom of the cast-in-place reinforced concrete plate is poured into the truss upper chord, namely concrete is poured into the truss upper chord. The truss structure and the box girder are effectively connected, so that the truss not only bears the supporting effect of the protective component, but also forms a stress whole with the main girder, the defect that additional load of a traditional shed tunnel acts on the main girder is overcome, and the overall rigidity, stability and durability of the structure are remarkably improved.
Owner:CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP

Integrated method for realizing sand prevention and stabilization and soil improvement based on coal gangue

ActiveCN121593459ABacteriaProtective constructionBacillus thuringiensisMetabolite
The invention discloses an integrated method for realizing sand prevention and stabilization and soil improvement based on coal gangue, which comprises the following specific steps: crushing the coal gangue, grading and screening, taking the coal gangue with the particle size of 0.1-10 mm, and adding bacillus thuringiensis and a compound additive into the coal gangue for activating treatment; the activated coal gangue is mixed with sand grains, then the coal gangue with the grain size being 10-100 mm is laid on the desert earth surface, and integrated treatment is completed; under the combined action of the bacillus thuringiensis and the compound additive, degradation of the coal gangue is accelerated to form a fine particle matrix, and organic matters contained in the coal gangue are synchronously degraded to generate humic acid; meanwhile, metabolites of the bacillus thuringiensis and biological enzymes can promote slow release of nutrient elements such as silicon, potassium and phosphorus in the coal gangue, so that the physical and chemical properties of desert sand grains are improved, and the dual purposes of sand prevention and stabilization and soil improvement are finally achieved by combining the surface laying effect of the coal gangue with the large particle size.
Owner:HENAN UNIV OF SCI & TECH ORDOS COAL CLEAN DEV & UTILIZATION RES INST

Protective barrier and method for determining the suitability of a net for catching a moving object

The invention relates to a protective barrier for catching a moving object, comprising a net and a supporting structure (6); wherein the supporting structure (6) stretches out and fastens the net (2); and wherein the net (2) has at least a first cable (90) and a second cable (91) with a respective thickness, wherein the net (2) is connected by the first cable (90) and the second cable (91), and the net (2) has at least one connection point (7), wherein the connection point (7) has a thickness, and the thickness of the connection point (7) corresponds at most to twice the thickness of the first cable (90) or to twice the thickness of the second cable (91), wherein the first cable (90) and the second cable (91) contain polyethylene, and the stretched-out net has an energy weight class of 500 kJ / (kg / m2) or more.
Owner:TRUMER SCHUTZBAUTEN

Passive blocking and protecting structure for ditch source collapse rolling stones

ActiveCN224031513UProtective constructionCheck damFiltration
The utility model discloses a passive blocking and protecting structure for ditch source collapse rolling stones, which comprises a multi-stage blocking structure arranged in a ditch and a buffer percolation structure arranged on the inner side of the blocking structure, the blocking structure further comprises a sheet-pile wall and a gravity type check dam, the sheet-pile wall is arranged at the lower part or the tail end of the ditch source collapse of the ditch, and the gravity type check dam is arranged on the lower part or the tail end of the ditch source collapse of the ditch. A multi-stage gravity type check dam is distributed in the channel on the front side of the sheet-pile wall; the blocking structure can be completely arranged to be a sheet-pile wall or a gravity type check dam. The blocking structure can be alternately provided with sheet-pile walls and gravity type check dam dams according to terrains; the buffering percolation structure further comprises a buffering layer, a rockfall groove and a percolation structure. Through the design of the blocking structure, the buffer layer and the percolation structure, the purposes of blocking rolling stones, draining ditch water and effectively preventing the ditch source from collapsing the rolling stones can be achieved.
Owner:YUNNAN GEOLOGICAL ENG SURVEY CO LTD

Intelligent guiding signboard for smart city

The smart city intelligent guiding signboard comprises a stand column and a cover cap, a first sliding groove is formed in the stand column, and the bottom of the inner wall of the first sliding groove is rotationally connected with a threaded rod. The utility model has the beneficial effects that the height of the direction board is adjusted to adapt to different use scenes and requirements, for example, in peak traffic hours, the direction board can be lifted so as to be clearly seen by vehicles and pedestrians in the distance, and can be lowered when not needed, so that the direction board is prevented from being damaged, and the direction board is adjusted along with urban planning, new landmark emergence or activity holding; the direction board can be quickly replaced, and the latest guiding information can be accurately transmitted; in addition, according to busy degrees of different road sections and requirements of special time periods, direction boards can be flexibly added, information transmission efficiency is improved, pedestrians and vehicles can be assisted to pass smoothly in an all-around mode, a display screen visually provides auxiliary guiding information for people, the direction boards and the display screen supplement each other, and the urban guiding service level is greatly improved.
Owner:BEIJING SMART CLOUD TECHNOLOGY CO LTD

Seed rope biological sand barrier convenient to flatly lay and fix

The utility model belongs to the technical field of sand prevention and control, particularly relates to a seed rope biological sand barrier convenient to lay and fix, and aims at solving the problems that an existing sand barrier is inconvenient to lay and low in laying efficiency, and the following scheme is provided: the seed rope biological sand barrier comprises a sand barrier belt assembly and a seed rope assembly, the sand barrier belt assemblies are supported by filling the sand into the sand barrier belt assemblies, so that the sand barrier belt assemblies are flatly laid on the surface of the sand, and convex wreckers are formed on the sand surface by laying the sand barrier belt assemblies in a crisscross manner, so that the effects of reducing the wind speed and fixing the sand surface are achieved; the seed rope assembly can enable planted seeds to grow and germinate in rainy days or after irrigation, more plants grow on the surface of the sand land, root systems of the plants can be inserted into the sand land, the wind prevention and sand fixation effects are further achieved, large-scale mechanical equipment is not needed for auxiliary laying during laying, and after the sand barrier belt assembly is laid, the sand barrier belt assembly can be conveniently and rapidly laid. Therefore, the laying of the seed rope assembly can be completed, and the laying efficiency is greatly improved.
Owner:MENGCAO ECOLOGICAL ENVIRONMENT (GRP) CO LTD

Wide valley U-shaped channel mountain torrent debris flow prevention and control method based on mountain torrent sediment transport rule

The invention provides a wide valley U-shaped channel mountain torrent debris flow prevention and control method based on a mountain torrent sediment transport rule, and the method comprises the steps: determining a formation region, a circulation region and an accumulation region of a large watershed debris flow channel, and determining debris flow channel parameters; determining the characteristics of the mud mark section; calculating debris flow characteristic parameters; a target bedrock section is selected, and the design height of a target dam body is calculated according to section characteristics of the target bedrock section, debris flow channel parameters, mud mark section characteristics and debris flow characteristic parameters; according to the method, an open type grating dam is arranged at a section where flood is often encountered, rolling type earth and rockfill dams are arranged at other positions of the section, and design construction is carried out according to a target design specification and the design height of a target dam body, so that the problem that when debris flow occurs, an existing prevention and treatment project loses efficacy due to deposition of silt carried by long-term erosion of mountain torrents is solved; and the service life of the prevention and treatment project in the drainage basin is greatly prolonged, and the expected effect can be achieved when debris flow occurs.
Owner:JIANGXI UNIV OF TECH

Clay conveying equipment and sand barrier laying mechanism

The invention discloses clay conveying equipment and a sand barrier laying mechanism. Comprising a frame body, a conveying mechanism is arranged in the middle of the frame body, the conveying mechanism comprises a conveying shaft, a conveying piece and a detection pipe, the conveying shaft is rotationally arranged in the middle of the frame body, the detection pipe is arranged in the conveying shaft, one end of the detection pipe is communicated with an extrusion pipe, and one side of the extrusion pipe is in contact with an extrusion frame; a detection pipe is arranged on one side of the frame body, a control mechanism is arranged on one side of the detection pipe and comprises a floating valve, a control valve and a control wheel, the floating valve is arranged on one side of the detection pipe in a sliding mode, an air conveying pipe is arranged on the edge of the frame body, and a downward pressing valve is arranged at one end of the air conveying pipe in a sliding mode. The angle can be adjusted through the dredging block, the dredging block stops for a period of time, the dredging block can spray out gas in a large range through first adjustment, and clay in the adjusting position is dredged in a large range.
Owner:鄂尔多斯市三北工程推进中心 +1

Bionic structure supporting device for geological disaster emergency and arrangement method

The invention discloses a bionic structure supporting device for geological disaster emergency and an arrangement method, and relates to the technical field of rockfall prevention supporting, the bionic structure supporting device comprises a bionic mechanism, the bionic mechanism comprises a plurality of longitudinal wires, and a plurality of transverse wires are fixedly connected among the longitudinal wires; the foundation pit high-pressure pile manufacturing mechanism is mounted on the bionic mechanism and comprises a plurality of pit wall extrusion plates; a spider web steel wire structure is simulated through the bionic mechanism, the flexible net body absorbs kinetic energy through elastic deformation buffering during falling stone impact, flexible interception is achieved, and the defect that a rigid structure is prone to being damaged is overcome; by means of the overall cooperation characteristic of local stress, impact force is dispersed to the whole net body and an anchoring system, stress concentration is reduced, and impact resistance and protection stability are improved. The high-pressure pile manufacturing mechanism is installed before concrete injection, and pressure is applied to the foundation pit wall to increase friction force; after concrete is injected, the bonding strength is enhanced, foundation pile displacement caused by soil loosening is prevented, and the stability of falling stone bearing capacity is ensured.
Owner:GEOLOGICAL & NATURAL DISASTER PREVENTION & CONTROL INST GANSU ACADEMY OF SCI

Automatic roller changing mechanism of grass grid laying vehicle

The utility model discloses an automatic roller changing mechanism of a grass grid laying vehicle, which comprises a grass roller, an inner support rotating mechanism, a rotating blocking mechanism and a telescopic blocking mechanism, and the automatic roller changing mechanism is carried on the grass grid laying vehicle and is uniformly controlled by a controller; the inner support rotating mechanism is connected with the sliding table to be installed on the rear rack and is pushed by a telescopic air cylinder. And the rotary blocking mechanism and the telescopic blocking mechanism are respectively controlled by an electric control rotary table mounted below the rear rack and a telescopic cylinder mounted above the front rack. The automatic roller changing mechanism of the straw grid laying vehicle solves the problem of automatic straw mat changing of the straw grid laying vehicle, the labor cost is reduced, and straw grid laying is more automatic. The grass checkered sand-protecting barrier can meet the requirements for wind prevention and sand fixation in the technical field of ecological protection engineering construction, the laying efficiency of the grass checkered sand-protecting barrier is improved, and the cost is reduced.
Owner:XINJIANG UNIVERSITY

Photovoltaic antiglare panel assembly, photovoltaic power generation system, and photovoltaic subgrade system

A photovoltaic antiglare panel assembly, a photovoltaic power generation system, and a photovoltaic subgrade system are provided. The photovoltaic antiglare panel assembly includes: a photovoltaic antiglare panel, the photovoltaic antiglare panel including double-layer tempered glass and a plurality of solar cells arranged between the double-layer tempered glass; a frame, the frame being sleeved on the periphery of the photovoltaic antiglare panel; a fixing unit, arranged at the bottom of the frame; and a power utilization unit, the power utilization unit being arranged in the fixing unit, and the power utilization unit being in electrical connection with the plurality of solar cells.
Owner:COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE

Canopy tunnel

The utility model discloses a cantilever shed tunnel which comprises an upper-layer supporting system installed on a side slope, a lower-layer supporting system installed on the side slope and located below the upper-layer supporting system, and an upper-layer protective net with one side fixed to the upper-layer supporting system and the other side fixed to the portion, above the upper-layer supporting system, of the side slope. One side of the lower-layer protective net is fixed on the upper-layer supporting system, and the other side of the lower-layer protective net is fixed on the lower-layer supporting system; the side, away from the side slope, of the upper-layer protective net and the side, away from the side slope, of the lower-layer protective net incline downwards. The device has two-stage buffering performance, and can reduce the impact of rockfall on the shed tunnel. Meanwhile, a double-layer steel column supporting system is adopted, so that the stability of the shed tunnel is improved.
Owner:SICHUAN JIERONGSI CONSTR ENG CO LTD

Municipal engineering safety warning device

The utility model discloses a municipal engineering safety warning device which comprises a fixing rod, a fixing plate and a warning board, the top of the fixing rod is provided with a bottom plate, the top of the bottom plate is fixedly connected with clamping plates, the clamping plates are symmetrically distributed, a balancing weight is arranged between the clamping plates, an inserting hole is formed in the balancing weight, and the fixing plate is fixedly connected with the warning board. Inserting rods are fixedly connected to the top of the bottom plate, the inserting rods are inserted into the inserting holes, and telescopic springs are fixedly connected to the top of the bottom plate. According to the municipal engineering safety warning device, the bottom plate is installed at the top of the fixing rod, the clamping plates are fixedly connected to the top of the bottom plate, the clamping plates are symmetrically distributed, the balancing weight is arranged between the clamping plates, then the inserting hole is formed in the balancing weight, the inserting rod is fixedly connected to the top of the bottom plate, and the inserting rod is inserted into the inserting hole; in this way, the warning device can well keep the safety warning effect in the windy weather, and the windproof effect of the warning device is high.
Owner:HUBEI PUYUAN CONSTRUCTION ENGINEERING CO LTD

A linkage monitoring debris flow prevention device and early warning method

This invention relates to the field of debris flow monitoring and prevention, and specifically to a debris flow prevention device and early warning method with integrated monitoring. The invention includes a force plate, baffles, rigid piles, and an intelligent early warning module. It uses a three-component mechanical sensor and a pore water pressure sensor to monitor in real time, capturing the shear stress, normal stress, and pore water pressure at the bottom of the debris flow, and analyzing the differences in internal stress distribution. A single rigid pile and two baffles constitute a protective unit, deployed along the channel. The cooperation between the force plate and the baffles forms a linkage between monitoring and prevention. When the force plate detects the passage of debris flow, the baffles move upstream to intercept it; when the force plate detects a decrease in debris flow flow, the baffle opening turns downstream for self-cleaning. The intelligent early warning module integrates multi-source sensor data based on 5G communication, and triggers a three-level graded early warning through theoretical quantitative analysis such as corrected Froude numbers and corrected impact loads. This invention achieves coordinated flow perception, graded early warning, and dynamic protection, improving prevention efficiency and early warning accuracy.
Owner:YANGTZE UNIVERSITY

Reinforcing component for anti-rockfall net of road

The utility model discloses a road anti-rockfall net reinforcing member which comprises a pre-buried barrel buried in the ground, an inserting groove is formed in the bottom of an inner cavity of the pre-buried barrel, an inserting column is inserted in an inner cavity of the inserting groove, a concrete layer is jointly filled between the inserting column and the inner wall of the pre-buried barrel, a first bottom plate is welded to the top of the inserting column, and a second bottom plate is welded to the bottom of the first bottom plate. A second bottom plate is arranged at the top of the first bottom plate, a threaded hole is formed in the top of the first bottom plate, and a bolt rod is arranged at the top of the second bottom plate in a penetrating mode. The insertion column is fixed in the inner cavity of the pre-buried barrel through the concrete layer, then the second bottom plate is fixed to the top of the first bottom plate through the bolt rod so that the second bottom plate can be stably connected with the ground, and then the stand column is welded to the top of the second bottom plate, so that the pre-buried bottom plate can be additionally arranged below the stand column; through cooperation of the pre-buried bottom plate and the concrete base, installation of the stand columns is reinforced, and then the purpose of improving the stability of the road anti-rockfall net joint is achieved.
Owner:QINGDAO RUNCHANGYUAN CONSTR ENG CO LTD

Falling stone blocking net of bionic honeycomb structure

The utility model discloses a rockfall blocking net with a bionic honeycomb structure, and relates to the technical field of blocking nets, the rockfall blocking net comprises a honeycomb net, an installation assembly is arranged on the outer wall of the honeycomb net, a first baffle is arranged on the outer wall of the installation assembly, and a splicing assembly is arranged on one side of the first baffle; and the mounting assembly comprises a fixing frame, the fixing frame is fixed to the outer portion of the honeycomb net, the outer wall of the fixing frame is fixedly connected with a mounting block, and a sliding groove is formed in the mounting block. According to the rockfall blocking net of the bionic honeycomb structure, a mounting frame can be mounted on a first baffle through fixing bolts, then people can conveniently and rapidly mount a honeycomb net, in addition, when the honeycomb net is stressed, a fixing frame can be driven to move, the fixing frame can extrude a spring and a damper through mounting blocks on the two sides, and the vibration of the spring and the damper is reduced. And under the action of the damper, the overall stress of the honeycomb net can be buffered, and the situation that the honeycomb net is broken due to the fact that the stress is too large is reduced.
Owner:CHONGQING GEOLOGY & MINERAL EXPLORATION & DEV BUREAU NANJIANG HYDROGEOLOGY ENG GEOLOGY TEAM

Device for quickly inserting reinforcing steel bars

The utility model belongs to the technical field of reinforcing steel bars, in particular to a device for quickly inserting reinforcing steel bars, which comprises a reinforcing steel bar body and a moving pipe, an adjusting mechanism is arranged on the outer surface of the moving pipe, the adjusting mechanism comprises a fixing block, the moving pipe is fixed by the movement of the fixing block, and the reinforcing steel bar body is fixed by arranging the fixing mechanism. A plurality of arc-shaped grooves are formed in the rotating pipe, when the rotating pipe rotates, due to the fact that the arc-shaped grooves are in sliding connection with the fixing plate, the rotating pipe slides in the arc-shaped grooves, reinforcing steel bar bodies with different diameters are fixed, a plurality of limiting grooves are formed in the circular plate, the fixing plate in sliding connection with the circular plate can be limited, and the fixing plate is prevented from sliding excessively or unevenly; one fixing plate is slidably connected with the other fixing plate in an inserted mode, and movement of the fixing plates is not affected while the fixing plates are fixed, so that stability of movement of the fixing plates is guaranteed.
Owner:TIANJIN LVYIN LANDSCAPE & ECOLOGY CONSTR

Debris flow protection device for geological disaster prevention

The debris flow protection device for geological disaster prevention comprises a base, a protection frame is rotatably connected to the base, a protection net is arranged in the protection frame, a rotating lug is arranged on the inner side of the protection frame, a supporting rod is rotatably connected to the rotating lug, a supporting groove is formed in the lower end of the base, and the supporting rod is arranged in the supporting groove. The supporting grooves are arranged at equal intervals, the movable ends of the supporting rods are matched with the supporting grooves, fixed taper pipes are arranged at the two ends of the base, control lead screws and sliding blocks are arranged in the fixed taper pipes, the sliding blocks are matched with the control lead screws and are in sliding fit with the fixed taper pipes, and inlets and outlets are formed in the side ends of the sliding blocks. According to the device, the protection angle can be adjusted, the fixing stability is improved, the impact resistance effect is improved, and the protection effect during protection work is improved.
Owner:SICHUAN KUNDUN JIAN TECHNOLOGY CO LTD

Slope protection support and assembly implementation method

The invention discloses a slope protection support and an assembly implementation method. The support comprises a main frame. Adjusting triangular supports are installed at the positions, corresponding to the connecting plates, of the main frame. A channel platform is installed on the main frame, a hole is formed in the middle of the channel platform, stairs are installed on the main frame, and guardrails are inserted into sleeves of the channel platform. Adjusting lead screws are screwed into the adjusting triangular supports, and supporting pipes are inserted into the bottom of the main frame. Compared with the prior art, the slope protection support has the remarkable advantages through scientific structural design and standardized implementation process, the support can flexibly adjust the supporting angle and height according to the slope gradient through cooperation of the adjusting triangular support on the main frame and the adjusting lead screw, and the slope protection effect is improved. Meanwhile, the included angle between the channel platform and the main frame is accurately controlled through the adjusting rod, it is ensured that the whole support is tightly attached to the slope, and the problem that a traditional support is fixed in parameter and difficult to adapt to complex terrains is effectively solved.
Owner:SICHUAN ROAD & BRIDGE CONSTRUCTION GROUP CO LTD

Anti-rockfall anchoring pile for road protection

The utility model discloses an anti-rockfall anchoring pile for road protection, which comprises a cement pier poured between a road and a slope, a steel plate is arranged above the cement pier, a rotatable pile rod is arranged at the top of the steel plate, an anchoring pile ring is anchored on the slope, a U-shaped piece is arranged at the top of one side of the pile rod, and a plurality of U-shaped pieces are arranged at the top of the other side of the pile rod. Steel wire ropes are installed on the U-shaped piece and the anchoring pile ring, hanging rings are arranged at the two ends of each steel wire rope, and the surface of the U-shaped piece is sleeved with the hanging ring on the steel wire rope on the top. The steel plate is fixed below the slope in a pouring mode, then the pile rod is installed on the steel plate, the anchoring pile ring is anchored on the slope, the position, close to the top, of the pile rod is connected with the anchoring pile ring on the slope in a pulling mode through the two steel wire ropes and the basket bolt, and therefore the strength of the installed pile rod is improved. The firmness degree of the anchoring pile can be improved by adopting cement pouring and combining steel wire tying.
Owner:QINGDAO HUAHAO CONSTR ENG CO LTD

Intelligent irrigation and self-degradation rod device for desert sand prevention, control and stabilization

The invention discloses an intelligent irrigation and self-degradation rod device for desert sand prevention, control and stabilization, and belongs to the technical field of desertification control and ecological restoration engineering. The device is of an integrally formed structure and comprises an overground spiral rod and an underground water storage fermentation tank, the total length is 55 cm, and the diameter is 3 cm. The outer surface of the overground spiral rod is provided with three vortex type spiral sand blocking water flowing grooves used for blocking sand wind and collecting rainwater, and the collected rainwater is guided into the underground water storage fermentation tank through a water guide pipe. The device body is made of degradable composite materials and comprises 40% of agricultural and pastoral straw sawdust, 30% of coal gangue, 20% of organic clay and 10% of biological adhesive. An automatic drainage system based on the siphon principle is arranged in the water storage fermentation tank, and the functions of water collection, water storage and irrigation can be achieved without external power. The device can be completely degraded in a desert environment within 2-3 years, and soil nutrients are released. The device is standardized in structure, suitable for mechanical arrangement and used for desert soil improvement and ecological restoration.
Owner:姜进田

Highway cutting slope photovoltaic panel anti-dazzle belt setting method and device

The invention discloses a highway cutting slope photovoltaic panel anti-dazzle belt setting method and device. The method comprises the steps that a plane where a slope toe of a road slope is located serves as a reference plane, eye positions of a driver during driving serve as original points, and the geometrical relationship among the driver, the road, an anti-dazzle zone and the slope is constructed; constructing an equivalent visual field cone formed by the original point and the anti-dazzle visual angle threshold value of the vehicle; the vision field range of a driver during driving is within the equivalent vision field cone; the highway cutting slope is equivalent to a triangular prism; based on the geometrical relationship, solving a section curve at the intersection of the visual field cone and the triangular prism inclined plane, and respectively obtaining a first intersection point of the section curve and the slope top and a second intersection point of the section curve and the slope bottom; based on the original point, the first intersection point, the second intersection point and the geometrical relationship, the effective anti-dazzle interval of the anti-dazzle belt in the vertical direction and the effective length of the anti-dazzle belt in the driving direction are determined. According to the method, the determined anti-dazzle belt can relieve the visual impact of the photovoltaic panel on a driver, and the driving safety is ensured.
Owner:GANSU TRANSPORTATION INVESTMENT MANAGEMENT CO LTD +3