1269results about "Protective construction" patented technology

The invention discloses a construction method for governing and repairing desertification degraded grassland in an arid area, and relates to the technical field of sand governing. The method comprises the following steps: evaluating a native vegetation type, vegetation coverage, a soil degradation and desertification degree, a soil type and a water resource condition; performing classified measures according to natural conditions, and determining different types of dune (flowing, fixed or semi-fixed) treatment measures; construction preparation; grid sand barriers are laid on the windward sides of the moving dunes and the semi-fixed dunes, and sand stabilization operation is conducted in a mechanical and manual combined mode; digging pits to plant indigenous shrubs subjected to special treatment, and using rooting water retention bags to improve the survival rate; the granular organic fertilizer and the seeds are mixed and stirred according to a certain proportion and then sown into soil at a time, the operation frequency is reduced, and precise fertilization is achieved. Through effective sand prevention and control measures, the sand wind damage is reduced, the living environment of farmers and herdsmen is protected, and the living quality is improved.

An airport for a vertical take-off and landing aircraft includes three or more windbreak walls that extend radially about a reference axis, and three or more take-off and landing areas for the vertical take-off and landing aircrafts, which are partitioned by two adjacent windbreak walls among the three or more windbreak walls.

The invention discloses an environment-friendly multi-arch underground excavation tunnel structure suitable for a river-near cliff, and relates to the technical field of tunnel engineering. The lining structure comprises a left hole composite lining, a middle semi-integral middle wall and a right hole through underground excavation composite lining, the left hole composite lining comprises a left hole secondary lining and a left hole primary support from inside to outside; the right hole through type underground excavation composite lining comprises a right hole secondary lining, a right hole primary support, a bottom plate, a top supporting beam, a bottom longitudinal beam and an inclined column. Aiming at the vertical river-adjacent terrain, a full-underground excavation transparent multi-arch tunnel scheme is provided for the first time, bias pressure is resisted by means of self-stability of surrounding rock, excavation is small, environment friendliness is achieved, and the construction concept of green roads is met. The invention further relates to a construction method of the environment-friendly multi-arch underground excavation tunnel structure suitable for the river-near cliff.

The embodiment of the present application provides an intelligent monitoring device for slope disasters on a highway network in a mountainous area during a strong earthquake, and relates to the technical field of geological disaster monitoring equipment. An intelligent monitoring device for slope disasters on a highway network in a mountainous area during a strong earthquake comprises: a support mechanism, a slope fitting mechanism, the slope fitting mechanism is located at the upper end of the support mechanism, a protective stone retaining mechanism, the protective stone retaining mechanism is located at the upper end of the support mechanism, the protective stone retaining mechanism is located on both sides of the slope fitting mechanism, and the slope fitting mechanism is in the process of adjusting the angle according to the slope inclination. The stone retaining position of the stone retaining plate can be dynamically adjusted according to the inclination of the assembly frame, so that it can adapt to different slope inclination conditions and rockfall conditions, which can not only reasonably buffer the impact force of the stone, but also ensure that the stone can smoothly enter the protective fence after being blocked, thereby improving the reliability of coping with the risk of rockfall, and providing a strong guarantee for the subsequent accurate statistics of the number of falling stones.

The invention discloses a reinforcing device before dangerous rock removal and treatment, which comprises at least two pairs of fixed anchor rods, the two pairs of fixed anchor rods are arranged in a matrix, the two pairs of fixed anchor rods are embedded in dangerous rock, the two pairs of fixed anchor rods are externally connected with a protective net, and the reinforcing device further comprises a pair of traction anchor rods arranged between the two pairs of fixed anchor rods. The invention relates to the technical field of dangerous rock reinforcement, the drilling, cooling and grouting functions are integrated through the hollow anchor rod, and the rock mass damage risk is reduced through single-point construction; the flexible connection system can effectively resolve the rock mass displacement stress; a gapless interception system is formed by the double-layer structure of the protective net and the blocking net, and falling stone impact energy is dissipated by the hydraulic buffer device in a grading manner; according to the design of the split type positioning hanging rings and the quick-release pins, modularized quick replacement of the protective net is achieved, the construction complexity is reduced through the standardized anchor rod assembly, the requirement for the number of anchoring points is reduced through cooperative bearing of the traction anchor rods and the fixed anchor rods, and the dangerous rock reinforcing safety and the construction efficiency are remarkably improved.

The utility model relates to the technical field of landslide collapse protection, and discloses a landslide collapse protection device which comprises a protection net. The supporting part is arranged on one side of the protective net, the supporting part is connected with the protective net, and a pressure sensor is arranged in the supporting part; the fixing part comprises a plurality of air cylinders and fixing seats, the fixing seats are arranged on the lower portions of the protective net, the supporting part and the air cylinders correspondingly, and the ends, away from the fixing seats, of the air cylinders are fixed to the sides, away from the protective net, of the supporting part; the controller is arranged on the supporting part, and the controller is electrically connected with the pressure sensor and the air cylinder. The supporting part is arranged on one side of the protective net, and meanwhile the fixing part is arranged, so that the supporting force of the device on a slope body can be improved, and high-strength impact can be well resisted; and secondly, a pressure sensor is arranged in the supporting part, pressure data of the slope body on the protective net are monitored in real time, when the pressure data exceed a preset pressure value, a controller controls an air cylinder to extend so as to enhance falling stone blocking, and practicability is high.

The invention relates to the technical field of displays, and provides a traffic display screen, which comprises a main body, the lamp strip is used for emitting light with different colors; the supporting pieces are arranged on the main body, the supporting pieces are used for installing the lamp strip, the number of the supporting pieces is multiple, and the multiple sets of supporting pieces are sequentially arranged on the main body; the mounting assembly is used for mounting and separating the supporting piece and the main body; after the multiple sets of supporting pieces and the main body are installed through the installation assembly, one set of supporting pieces in every two adjacent sets of supporting pieces moves relative to the main body, and the other set of supporting pieces is fixed relative to the main body. When one group of supporting pieces moves relative to the main body, a gap is formed between two adjacent groups of supporting pieces. When the display screen is blown by strong wind, the strong wind can enable the movable supporting piece to move, the interval is generated between the movable supporting piece and the fixedly-installed supporting piece, then part of the wind passes through the display screen through the interval, the blowing force of the wind on the whole display screen is reduced, and therefore the display screen can be conveniently and rapidly installed. Therefore, the display screen is prevented from loosening due to large-amplitude shaking.

The invention discloses a multifunctional wind-prevention and sand-fixation vegetation barrier, and relates to the technical field of wind-prevention and sand-fixation devices, and the multifunctional wind-prevention and sand-fixation vegetation barrier comprises a grass square grid in which a planting area is defined; the solar power generation and windproof structure comprises a solar frame body and a solar panel, the solar frame body is arranged corresponding to the upper part of the straw square grid; the top surface of the solar frame body is inclined and is provided with a solar panel mounting hole; the solar panel is adaptively and obliquely mounted at the bottom in the solar panel mounting hole so as to define a rainwater collecting groove in the solar panel mounting hole corresponding to the upper part of the solar panel; a gap is formed between the bottom end of the solar panel and the inner wall of the corresponding solar panel mounting hole to form a rainwater confluence outlet; the water guide assembly comprises a water guide groove and a water guide pipe; the water guiding groove is installed on the solar frame body and corresponds to the lower portion of the rainwater confluence outlet. And the other end of the water guide pipe penetrates through the straw square grid and is inserted into the ground. A physical wind barrier can be effectively established, and rainwater is effectively collected and utilized for precise irrigation.

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.

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.

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.

A sediment control device is disclosed. The device includes an elongate fabric and a plurality of sleeves attached to the fabric. The plurality of sleeves extend generally perpendicular to a longitudinal axis of the fabric and are configured to receive a stake for securing the sediment control device to soil. Each sleeve is spaced a distance from an adjacent sleeve. In use, the fabric is laid out along a soil path, a bottom portion of the fabric is trenched into soil, and the stake is inserted into each sleeve such that the sediment control device is secured to soil. The bottom portion can then be backfilled.

The invention relates to a reusable civil engineering temporary support construction device, belonging to the technical field of civil engineering; it comprises a support base, a top support plate is arranged at the upper end of the support base, an inclined inclined plate is rotatably arranged at the upper end of the top support plate; two fixed boxes are fixedly arranged on the inclined plate, a stone retaining box is slidably arranged on the upper end of the inclined plate, and the stone retaining box is connected to the two fixed boxes through two support ropes; a box door is rotatably arranged at the lower end opening of the stone retaining box through a rotating shaft, and a linkage mechanism is arranged between the rotating shaft and the inclined plate, and when the stone retaining box slides on the inclined plate, the box door is opened through the linkage mechanism; the problem that the traditional civil engineering temporary support structure is insufficient in protection and cannot be reused is solved.

The invention relates to the technical field of highway tunnel photovoltaic snow protection shed tunnels, in particular to a highway tunnel photovoltaic snow protection shed tunnel self-heating regulation and control method which comprises the steps that the actual value of the accumulated snow thickness is collected, the estimated accumulated snow thickness value and the expected value are obtained, and when the actual expected value is smaller than the estimated expected value, the photovoltaic snow protection shed tunnel self-heating regulation and control method is started. And carrying out heating power adjustment on the photovoltaic panel partition based on the difference value. Through combination of multi-dimensional accumulated snow detection and regional accurate heating, the accumulated snow removing efficiency is improved, the heating energy consumption is optimized, stable operation in extreme weather is guaranteed, and the complex working condition requirements are met. In addition, the invention also provides a storage medium, an electronic device and a computer program product to implement the method.

The invention discloses a highway isolation belt breeze power generation light blocking wall which comprises a supporting frame, a wind shield is fixedly connected to the surface of the supporting frame, a mounting frame is fixedly connected to the lower surface of the supporting frame, a power generator is fixedly connected to the interior of the mounting frame, and a rotating shaft connecting rod is fixedly connected to the input end of the power generator; the side surface of the rotating shaft connecting rod is fixedly connected with a one-way coupling; a rotating shaft is rotationally connected to the interior of the supporting frame, the lower end of the rotating shaft is fixedly connected with a one-way coupling, and an axial flow wind wheel set is fixedly connected to the side surface of the rotating shaft; a windward barrel is fixedly connected to the upper surface of the supporting frame, and a mounting cavity is formed in the lower portion of the windward barrel. Through the structure and the modular design, the device is an isolation belt and a breeze power plant at the same time, and wind energy can be fully utilized.

An avalanche triggering apparatus having a tower, a detonation chamber, and gas supply lines that are configured to deliver fuel gas and oxidizer to the detonation chamber. The flow is gas is controlled remotely, and a spark plug is configured to ignite gases within the detonation chamber based on the flow of fuel gas through a flow switch that acts as a sensor. The detonation chamber has a closed, rounded top and an open bottom end that is configured to face a snow surface. The detonation chamber is connected to the tower via mounting brackets and two pairs of isolator springs. Each isolator spring is comprised of a helical cable isolator that is inserted through a plurality of holes in two aluminum members in a helical configuration. The tower is comprised of at least two sections that are secured together via flanges.

An energy absorption device for absorbing at least a portion of impact energy occurring in an impact of an impact body in a safety net construction includes at least one cable guiding unit forming at least one cable receiving region for receiving and / or guiding at least one cable, and further includes at least one energy absorption element, arranged in the cable receiving region and forming at least one friction surface for the guided cable, the energy absorption element being configured, if a force inducing movement of the cable across the friction surface is exerted on the cable, to selectively absorb at least a portion of energy the force created via substantial deformation and / or abrasion of the friction surface. A cable brake, particularly a block-and-tackle cable brake, includes an energy absorption element of the energy absorption device, which is arranged at the deflection element on a side facing toward the cable.

To provide a guard fence division column which can freely select a connection position of the division column and can achieve both increased bending yield strength and improved toughness of the division column.SOLUTION: A guard fence division column comprises a filled steel pipe lower column 10A and a filled steel pipe upper column 10B. The lower column 10A and the upper column 10B have multiple reinforcement bars 12a, 12b buried into filled materials 14a, 14b in an outer pipe 11, connect flanges 16, 16 formed at one end of the lower column 10A and the upper column 10B using multiple bolt elements to form a flange joint, the reinforcement bar 12a of the lower column 10A and the reinforcement bar 12b of the upper column 10B are superimposed in the outer pipe of the lower column 10A or the upper column 10B and arranged cylindrically, and a group of the reinforcements 12a, 12b arranged cylindrically is positioned by a connection filled material 14c filled in the outer pipe 11 of the lower column 10A or the upper column 10B to form a reinforcement connection part 20.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of geological disaster prevention and control equipment, and discloses a slope stone blocking device convenient to transport, which comprises a stone blocking mechanism, a connecting mechanism, three first steel chisels and two second steel chisels, the connecting mechanism comprises a connecting rotating shaft, and the stone blocking mechanism comprises a stone blocking plate. A T-shaped sliding groove is rotationally formed in one side of the stone blocking plate through the connecting rotating shaft, and the T-shaped sliding groove and one side of the stone blocking plate are fixedly provided with a plurality of buffer springs in the vertical direction in an axial symmetry mode at the front end and the rear end of the connecting rotating shaft correspondingly; a plurality of buffering mechanisms are evenly installed on the front wall of the stone blocking plate in a matrix mode. According to the device, impact is absorbed in all directions through the multiple buffering mechanisms containing the spring dampers, rapid connection of the multiple single bodies is achieved through the T-shaped sliding blocks and the sliding grooves, a continuous protection belt in a self-defined shape is formed according to terrain requirements, and transportation and rapid deployment are facilitated through the design of rapid dismounting, mounting and fixing.

The utility model provides wind prevention and sand fixation equipment in land reclamation, which relates to the technical field of wind prevention and sand fixation equipment and comprises a first shell, a third shell fixedly connected to the top of the first shell, a supporting plate fixedly connected to one side of the third shell, a telescopic rod fixedly connected to the bottom of the supporting plate, and a fourth shell fixedly connected to the bottom of the telescopic rod. A second motor is fixedly connected to one side of the inner wall of the fourth shell, an extrusion piece is fixedly connected to the output end of the second motor, a threaded rod is rotationally connected to the upper surface of the fourth shell and is in threaded connection with the supporting plate, and a handle is fixedly connected to the upper surface of the threaded rod. The height of the extrusion sheet can be adjusted according to the land desertification degree, and the flexibility and practicability of the device are improved; straw slides down to the ground along the first auxiliary plate to be evenly arranged, and the situation that the density of the straw around the straw checks is uneven, so that the stability of the straw checks is affected, and the whole straw checks are unstable in structure is avoided.

The invention discloses a slope protection device for urban road traffic engineering construction, which relates to the technical field of traffic construction, including a slope, wherein a road surface is arranged on one side of the slope, a fixing seat is fixedly connected to the top of the road surface, a supporting column is fixedly connected to the top of the fixing seat, a fixing rod is fixedly connected to one side of the supporting column, a guardrail is fixedly connected to the outer wall of the fixing rod, and a slope protection mechanism is arranged on the outer wall of the fixing rod. By arranging the slope protection mechanism, an arc plate A transmits the force received to a rotating shaft, and the rotating shaft transmits the force received to the entire fixing rod, so as to buffer the impact force of a rolling stone sliding down from a single place, and the buffering force is also uniformly transmitted to each supporting column and the fixing seat through the fixing rod, so as to prevent the instantaneous impact on the supporting column and the guardrail caused by the rolling of the stone, thereby preventing the guardrail and the supporting column from being broken, and also preventing the fixing seat at the bottom from being uprooted by being hit by a large stone.

The herringbone snow and sand blocking wall structure comprises windward plates, leeward plates and a top end combination component, the windward plates and the leeward plates are connected through the top end combination component, the multiple windward plates and the multiple leeward plates are sequentially arranged in a staggered mode, and the windward plates and the leeward plates form an included angle structure with the upper ends close to each other and the lower ends separated from each other; the windward plate comprises a corrugated steel plate, the waveform direction of the corrugated steel plate is transverse wave arrangement, and the windward plate is close to one side of the windward direction; the leeward plate comprises a corrugated steel plate, and the waveform direction of the leeward plate is vertical. Through the geometric arrangement of the windward plate and the leeward plate and the matched design of the corrugation direction, the guiding effect of wind power is fully utilized, the vortex hedging effect is formed on the back face of the windward plate, reverse wind pressure is generated while the wind speed is remarkably reduced, the supporting capacity of the back face of the windward plate is enhanced, and the structural strength and material use are further optimized.

The invention discloses an assembly type steel corrugated plate structure snow protection shed tunnel, and relates to the technical field of shed tunnels, the assembly type steel corrugated plate structure snow protection shed tunnel comprises a shed body, and further comprises a snow covering monitoring and shoveling mechanism and an accumulated snow push-out mechanism, through the arrangement of the snow covering monitoring and shoveling mechanism, the gravity effect of accumulated snow on an arc-shaped snow covering plate is utilized, and take-up reels on the two sides of the shed body can be driven to synchronously start to operate; the traction rope is rotationally stored and released, so that the sliding rod can slide above the arc-shaped snow covering plate, the snow removing brush and the snow shoveling plate can be attached to the outer surface of the arc-shaped snow covering plate to remove accumulated snow on the outer surface of the arc-shaped snow covering plate, it is ensured that the accumulated snow is thoroughly and evenly removed, the working efficiency is improved, and the snow removing effect is improved. In addition, when the accumulated snow is accumulated to a certain degree, the gravity action of the accumulated snow is utilized to naturally trigger the mechanism to be started, manual intervention or external signals are not needed, it is ensured that the accumulated snow cannot be accumulated for a long time, and therefore structural pressure or potential safety hazards caused by too much accumulated snow are reduced.

The invention relates to the technical field of semi-arid mining area land reclamation and ecological restoration, and discloses a semi-arid mining area reclamation double-surface-soil key layer and a refined construction method thereof.The semi-arid mining area reclamation double-surface-soil key layer comprises a wind-erosion-resistant key layer and a water and fertilizer maintaining key layer which are arranged from top to bottom; the anti-wind-erosion key layer comprises a coarse particle windproof layer and a fine particle cementing layer which are arranged from top to bottom; the water and fertilizer maintenance key layer is prepared from the following raw materials: fine sand or original sandstorm surface soil, a clay mineral-based physical structure regulator, an organic water-retaining agent and a biological enhancement matrix material; the raw materials of the coarse particle windproof layer comprise gravel and coarse sand; the raw materials of the fine particle cementation layer comprise fine sand or original sandstorm surface soil, a clay mineral-based physical structure regulator and an organic water retention capacity cementing agent. The reclamation double-surface soil key layer for the semi-arid mining area can effectively resist natural erosion, improve the soil structure, improve the water and fertilizer retention capability and promote the recovery of local host plants.

The invention discloses a multifunctional segmented combined type sand blocking wall system, and relates to the technical field of engineering sand prevention. Comprising two supporting piles, a lower sand blocking structure, a middle sand blocking structure and an upper sand blocking structure, the middle sand blocking structure and the lower sand blocking structure are both installed between the two sides of the two supporting piles, the middle sand blocking structure is installed above the lower sand blocking structure, and the upper sand blocking structure is installed at the tops of the supporting piles. The lower sand blocking structure, the middle sand blocking structure and the upper sand blocking structure form a three-section type sand prevention structure. Through the arrangement of the multi-section type sand blocking structure, differentiated treatment is carried out according to the wind and sand conditions of different heights in the same area, the wind and sand can be weakened, the wind and sand are dispersed all around after being impacted, the wind speed is reduced, the sand carrying capacity is weakened, in the implementation process, the weight of the sand burying cylinders is increased due to the increase of grit, and the sand burying cylinders are buried in the sand, so that the sand burying efficiency is improved. And the sand burying cylinder is in full contact with the sand, so that sufficient stability is provided for the supporting pile after the self weight is increased.

The invention relates to the technical field of supporting construction devices, and discloses a high slope supporting construction device and method.The high slope supporting construction device is characterized in that an alarm device is installed in the middle of the upper surface of a supporting baffle, a control device is installed in a base, and a control module is arranged in the control device. And when the slope collapses, the control module drives the alarm device to input current, so that a worker is reminded to arrive at the site for checking and passers-by nearby is reminded to pay attention to safety, and when the control module judges that the supporting baffle is broken, the control module is controlled to control the slope to be broken. The control module drives the air pump to input current to generate compressed air, the compressed air is input into the air cabin of the auxiliary plate through the conveying pipe and conveyed into the rubber pad through the telescopic plate, the rubber pad is controlled to be in an expansion state and attached to the outer wall of the front face of the supporting baffle, and the effect of temporarily protecting the damaged surface of the supporting baffle is achieved.

The invention relates to a geomaterial sheet comprising a first organic structural material and a second structural material, different from the first, which are connected to the first structural material to form a planar composite material sheet extending in two mutually perpendicular directions. The invention is characterized in that the first structural material and the second structural material are organic materials, the first structural material exhibits a first biodegradability to a certain extent, and the second structural material exhibits a second biodegradability that differs from the first biodegradability, in particular being lower than the first biodegradability.

The invention relates to the technical field of highway lighting, and particularly discloses a photovoltaic lighting structure for a central isolation strip of an expressway, the photovoltaic lighting structure comprises a plurality of foundation columns fixedly mounted on a highway pavement and a plurality of wave baffles mounted on the foundation columns, and a plurality of light holes are formed in the wave baffles; the lighting mechanism is arranged on the outer side of the outer wall, close to one side of the foundation column, in the wave baffle; the power mechanism is arranged in the middle of the road and can receive airflow flowing power generated when the two-way traffic flow passes through, convert the airflow flowing power and transmit the airflow flowing power to the lighting mechanism. The photovoltaic mechanism is arranged between the power mechanism and the lighting mechanism and used for providing electric energy for the lighting mechanism. The light-transmitting pieces can correspond to the light-transmitting holes in position, light of the lighting mechanism penetrates through the light-transmitting pieces to be projected on the road surface, and a plurality of warning irradiation areas with different distances from the wave baffle are formed. According to the invention, an integrated photovoltaic illumination structure with autonomous energy supply, anti-dazzle and accurate projection warning is realized.

The invention relates to a rigid-flexible combined type high and steep slope rockfall protection structure and a construction method thereof. The method comprises the steps that slope cutting treatment is conducted on the high and steep slope, a plurality of horizontal flat areas are formed near the slope surface after slope cutting, and transition inclined flat areas are formed between the horizontal flat areas adjacent in height; stone blocking wall anchoring piles are arranged in the flat area, rope anchor rods and bases are preset on the top, and transversely continuous prefabricated concrete slabs are arranged on the back faces of the stone blocking wall anchoring piles and are poured into a whole with the stone blocking wall anchoring piles; laying a dry masonry rubble buffer layer on the back surface of the precast concrete slab, and digging a stone falling groove downwards behind the dry masonry rubble buffer layer; steel columns are installed on the base, and a flexible passive protective net is hung between the steel columns. The rigid pile plate type stone blocking wall and the flexible passive protection net are combined to form a protection whole, and the protection effect and the structural stability when high-energy rockfall occurs are effectively improved.

To effectively prevent a sudden load drop in a connection part of a support by distributing the a load acting on the connection part of the support.SOLUTION: A structure of a support for a guard fence is provided with a lower support 20a and an upper support 20b, which together form a support divided into upper and lower parts, and a connection socket 20c, where, a split position P1 of a steel pipe 21 constituting the lower support 20a and the steel pipe 21 constituting the upper support 20b and a split position P2 of a reinforcing bar 22 buried in the lower support 20a and the reinforcing bar 22 buried in the upper support 20b are in positions mutually shifted along the longitudinal direction of the support, and the connection socket 20c has the whole length capable of covering the split position of the steel pipe 21 and the split position of the reinforcing bar 22.SELECTED DRAWING: Figure 6