130results about How to "Prevent landslides" patented technology

The utility model discloses a water and soil conservation ecological protection slope which comprises an original soil layer, and the original soil layer is covered with construction slag. The tail end of the platform drainage ditch is communicated with the side face of the side drainage ditch, a bottom step is arranged on the bottom face of the inner side of the side drainage ditch, a drainage pipe is fixed to the middle of the masonry slag blocking wall in a penetrating mode, and an inverted filter layer is installed at the end, close to construction slag, of the drainage pipe. The top end of the compacted slope is connected with one side of a top drainage ditch, top covering soil is arranged on the surface of the construction slag body on the other side of the top drainage ditch, and a grouted rubble drainage ditch is installed at the tail end of the top covering soil. According to the water and soil conservation ecological protection slope, a novel structural design is adopted, slag bodies generated in the whole construction process are effectively utilized, surface runoff is effectively guided through the multiple drainage ditches, water and soil loss is avoided, meanwhile, accumulated water flow is discharged at the slope bottom, it is guaranteed that the whole slope body is stable, and the service life of the slope body is prolonged. Meanwhile, the artificial traces can be covered by vegetation, and local ecology multidirectional restoration is facilitated.

The invention discloses an expressway slope structure in a high-water-level area and a construction method of the expressway slope structure. The technical problem that in the prior art, the reinforcement and drainage effects are poor is solved. The expressway slope structure in the high-water-level area comprises a concrete grid, a slope layer and a slope layer, the first flexible grid is laid on the soil matrix; the porous water guide layer is laid on the first flexible grid; the second flexible grid is laid on the porous water guide layer; the concrete grid is laid on the second flexible grid; the elastic water guide layer is laid on the second flexible grid and is filled in the cavity; the filter layer is laid on the elastic water guide layer; the water plugging layer is arranged above the filtering layer, and a water storage cavity is formed between the water plugging layer and the filtering layer; the drainage mechanism is used for draining the clear liquid filtered by the filter layer in the water storage cavity into the drainage groove; and the fixing mechanism is used for fixing the concrete grid on the soil matrix.

The invention discloses a recyclable foundation pit supporting soil prevention plate which comprises a fixing unit, a protection unit and a supporting unit, and the fixing unit comprises a plurality of bases arranged in sequence; each protection unit comprises a plurality of corrugated plates, a connecting groove and a connecting convex plate are formed on the two sides of each corrugated plate respectively, the multiple corrugated plates are detachably connected in sequence through insertion connection of the connecting convex plates and the connecting grooves, and the bottoms of the multiple corrugated plates are fixedly connected with the tops of the multiple bases; one end of each supporting unit is rotatably connected to the side face of the corrugated plate, and the other end of each supporting unit is connected to the ground in an inserted mode. The stability and the bearing capacity of the whole structure can be enhanced, the foundation pit supporting soil prevention plate can be repeatedly used in different construction projects, and the technical problems that an existing foundation pit supporting soil prevention plate is poor in supporting stability and cannot be repeatedly used are solved.

The utility model discloses a quadrangle slope roof which comprises a roof tile layer, a horizontal tile cushion layer, a protection layer, a waterproof isolation layer, a waterproof layer, a leveling layer, a moisture-proof heat preservation layer, an anti-corrosion layer and a base layer which are sequentially arranged from top to bottom, the moisture-proof heat preservation layer is made of an extruded polystyrene board, the percentage of closed area of the extruded polystyrene board reaches more than 90%, and the extruded polystyrene board has good heat insulation performance. Compared with the prior art, the extruded polystyrene board can effectively relieve heat transfer, so that the good heat preservation, energy saving and environment protection effects are achieved, the 1: 3 cement mortar leveling layer is arranged above the extruded polystyrene board for leveling, the waterproof layer is convenient to install, the compactness of the waterproof layer is improved, the waterproof layer is made of a double-layer self-adhesive tyred SBS modified asphalt waterproof roll with the thickness of 3 + 3 mm, and the waterproof effect is good. The waterproof isolation layer is a low-grade mortar isolation layer, and the low-grade mortar isolation layer is matched with the double-layer self-adhesion type tire SBS modified asphalt waterproof coiled material, so that the waterproof and fireproof performance of the slope roof can be greatly improved, and the situation of roof water leakage can be effectively avoided for a long time.

The utility model discloses an ancient tree protection structure, which solves the problem of inconsistent elevation of the ancient tree in-situ ground and the newly-built ground of a newly-built project soil layer by backfilling the ancient tree in-situ ground and arranging a plurality of retaining walls on the backfilled soil layer, so that the ancient tree does not need to be excavated and transplanted, and the in-situ protection of the ancient tree is realized. The survival rate of the ancient trees is improved, and the ancient trees can be protected conveniently; a plurality of retaining walls which are distributed in a step shape are arranged on the inclined slope surface of the backfill soil layer, the soil retaining effect of the retaining walls is exerted, landslide of backfill soil is avoided, meanwhile, steps are built on the inclined slope surface of the backfill soil layer, tourists can play and appreciate the steps, the whole protection structure and ancient trees are fused to form a natural landscape, the landscape is attractive, and the service life of the landslide is prolonged. And the user is delightful.

The application discloses a support assembly, a pavement assembly, a base station and a cleaning system. The support assembly of the application is arranged on a pavement or a position close to the pavement, and comprises a moving mechanism and a support mechanism. The support mechanism is movable between a first position and a second position and is movable from the first position to the second position under the driving of the moving mechanism. The support mechanism is movable between the first position and the second position, so that, after the support assembly is arranged, when a device such as a movable device passes through the pavement, the support mechanism can be brought into abutment with a walking wheel of the movable device to limit the movement of the movable device and reduce the risk of landslide of the movable device. In the case that the movable device walks on the pavement assembly, the support mechanism can avoid the movable device, so that the walking of the movable device is more smooth.

The present invention discloses an advanced small conduit pre-reinforcement system, including an advanced small conduit, wherein the advanced small conduit is provided with a double layer along the entire circumference of the tunnel, wherein the double layer includes an inner layer and a middle layer, wherein the inner layer and the middle layer of the advanced small conduits are uniformly inserted in the water-rich soft rock along the circumference of the tunnel, wherein the inner layer of the advanced small conduits and the middle layer of the advanced small conduits are staggered, wherein an outer layer of the advanced small conduits is added within an angle range of 110°-130° of the top pressure arch of the tunnel, wherein the outer layer of the advanced small conduits are uniformly inserted in the water-rich soft rock along the circumference of the tunnel, wherein the outer layer of the advanced small conduits and the middle layer of the advanced small conduits are staggered, wherein grouting holes are uniformly provided on the advanced small conduits, wherein the advanced small conduits are used for injecting grouting liquid, and wherein the ends of the advanced small conduits are fixed on the arch frame of the tunnel. The present invention enables a large grouting reinforcement area, a good reinforcement effect, effectively reinforces loose rock mass, prevents tunnel collapse, and thus improves surrounding rock grade and construction safety.

The foundation pit fringe truss combined steel supporting system is used for being installed in a foundation pit and comprises an outer side truss, an inner side truss, a combined profile steel angle brace, a combined profile steel diagonal brace, a main supporting steel structure and a fixed-point stress detecting and adjusting mechanism. Each fixed-point stress detection and adjustment mechanism comprises a pressure sensor, a top seat, a base, a pushing block, a screw, a fixing rod, a hexagonal threaded sleeve, a first locking piece, a second locking piece, an elastic anti-skid gasket and a follow-up force transmission mechanism. Through the arrangement of the fixed-point stress detection and adjustment mechanism, shear stress applied to the inner wall of the foundation pit can be monitored in real time, corresponding supporting force is applied to the outer side truss, deformation of the outer side truss can be prevented, the supporting force of the outer side truss can be improved, and deformation or collapse of the inner wall of the foundation pit can be prevented.

The present invention discloses a rainwater and sewage pipe network foundation pit excavation support and protection device, which relates to the technical field of sewage pipe network foundation pit excavation, and comprises: a support frame, on which two insertion devices, two first bearing shells, a second bearing shell and a support installation assembly are fixedly arranged, the two insertion devices and the two first bearing shells are mirror-arranged, and the two insertion devices correspond to the two first bearing shells one-to-one, each first bearing shell is arranged in the middle of the corresponding insertion device, the support installation assembly is arranged on the side of the two insertion devices away from the first bearing shell, and the second bearing shell is arranged on the other side of the support installation assembly; the device can be moved on the outside of the foundation pit through the support frame, and the support frame can be adjusted according to the size of the foundation pit, so that the device can adapt to the needs of different foundation pit excavation support.

The utility model discloses a plant fiber blanket suitable for a highway slope, which relates to the technical field of anti-landslide mechanisms for construction, and comprises a plant fiber blanket main body, the plant fiber blanket main body is composed of two groups of polypropylene fixing nets, a plant straw layer and a non-woven fabric supporting layer, the two groups of polypropylene fixing nets are distributed at the upper end and the lower end, and the plant straw layer is arranged on the plant fiber blanket main body. The plant straw layer and the non-woven fabric supporting layer are located between the two polypropylene fixing nets, and each polypropylene fixing net is composed of a polypropylene net, a galvanized iron wire net and a fixing clamping groove. After a slope is manually brushed, plant grass seeds are sown, a plant fiber blanket is laid subsequently, a fixing clamping groove is fixed through a long-strip bamboo stick, and other parts can be fixed through U-shaped nails or T-shaped bamboo sticks, so that the possibility of overall landslide in the construction process is avoided, the problem of a slope surface water section is solved, the structure of an existing plant fiber blanket is optimized, and the construction efficiency is improved. And tensile strength and fixing strength are improved.

The invention discloses a slope supporting structure for hydraulic engineering, and belongs to the technical field of hydraulic engineering slope protection equipment.The slope supporting structure for hydraulic engineering comprises a slope protection main body, a box body is arranged at the top of the slope protection main body, a retaining wall is arranged at the bottom of the slope protection main body, and a plurality of first inserting rods are fixedly connected to the bottom of the box body; a plurality of first inserting rods are fixedly connected to the bottom of the retaining wall, a plurality of first anchoring parts are arranged on the periphery of the first inserting rods, a plurality of second inserting rods are fixedly connected to the bottom of the retaining wall, and a plurality of second anchoring parts are arranged on the periphery of the second inserting rods. The slope protection main body is firmly limited between the box body and the retaining wall, the stability of the whole supporting structure is greatly improved, the top and the bottom of the slope main body are prevented from collapsing, and the bearing capacity of the slope protection main body is improved.

This invention belongs to the field of foundation filling, specifically an auxiliary device and its operating method for vibratory compaction of crushed stone piles. It includes a vehicle body, a fixed frame fixedly connected to one side of the vehicle body, a first motor fixedly connected to the bottom of the fixed frame, and an output end of the first motor extending into the interior of the fixed frame and fixedly connected to a lead screw. The lead screw is rotatably connected to the fixed frame, and a connecting block is connected to the outer wall of the lead screw via a lead screw nut pair. The connecting block is slidably connected to the fixed frame. This invention provides an auxiliary device and its operating method for vibratory compaction of crushed stone piles. The first motor controls the sleeve to intermittently compress downwards, which, in conjunction with the bottom of the partition, compacts the crushed stone entering the vibratory compaction hole. A compression ring further encloses the crushed stone entering the vibratory compaction hole. As the sleeve moves downwards, the concave surface formed by the discharge chute and the partition allows the crushed stone to concentrate inwards and accumulate upwards in a pagoda-like shape, preventing excessive compression of the hole wall and thus avoiding collapse of the hole wall.

The invention discloses a slope structure suitable for an expressway in a high-water-level area and a construction method of the slope structure. The technical problem that in the prior art, the reinforcement and drainage effects are poor is solved. The slope structure comprises a first slope surface, a first platform, a second slope surface, a second platform, a third slope surface and a third platform which are sequentially distributed from bottom to top. The gradient is as follows: the first slope, the second slope and the third slope; according to the transverse length, the first slope is larger than the second slope and larger than the third slope, and the first platform is larger than the second platform and larger than the third platform; a drainage structure is arranged on the first slope surface; water guide structures are arranged on the second slope surface and the third slope surface; waterproof structures are arranged on the first platform and the second platform; and a grouting structure is arranged on the third platform. The slope structure has high adaptability and practicability, the functions of the slope surfaces and the platforms are focused, and a comprehensive protection system formed by compounding multiple measures such as water drainage, water guide, water prevention and reinforcement can effectively cope with the complex hydrogeological environment of a high-water-level area.

The present invention relates to the technical field of transportation equipment, and in particular to a transportation equipment with high safety and anti-slip function for ore mining, comprising a side wall, a conveyor belt installed inside the side wall, the side wall being rotatably connected to the conveyor belt, a rotating shaft installed inside one end of the conveyor belt, the rotating shaft being sleeved with the conveyor belt, a motor installed on the bottom back side of the conveyor belt, the motor and the side wall are fixed by bolts, the output shaft end of the motor passes through the side wall and the side wall of the rotating shaft and extends to the inside of the rotating shaft, a support column is installed at the bottom of the side wall, the side wall is rotatably connected to the support column, the present invention has a reasonable design and an ingenious structure, and through the mutual cooperation between the structures, the transportation of ore is more convenient, and slipping is effectively prevented, and the inclination angle of the conveyor belt can be adjusted, the scope of application is wider, and the stability is better, it has good market competitiveness, and is worthy of recommendation.

The invention discloses a liquid CO 2 The method of reinforcing the broken slope by coupling blasting and grouting is to drill holes on the broken slope; use liquid CO 2 The high-pressure gas generated by the phase change squeezes the gravel in the broken layer of the slope around the borehole; the squeezed broken layer of the slope is grouted through the borehole, so that the gravel in the broken layer is bonded into a body, and finally a grouting area centered on the borehole is formed. In this process, the grouting areas of adjacent boreholes are connected into one by controlling the borehole spacing, so as to achieve the reinforcement of the entire slope broken layer. This method uses the high-pressure gas generated by the phase change of liquid CO2 to squeeze and densify the gravel around the borehole, and then performs high-pressure grouting to make the gravel in the squeezed area bonded into a body and finally form a grouting area centered on the borehole; in this process, the grouting areas of adjacent boreholes are connected by controlling the borehole spacing, and then a reinforcement surface is formed on the gravel surface to integrally reinforce the entire slope gravel body and achieve slope stability.

The utility model provides a municipal works river channel revetment quick reinforcement's anchoring device relates to hydraulic engineering technical field, including shell, positioning disc, internal thread pipe, the inside of shell is equipped with round hole, and is equipped with annular recess in the lower end outside of shell, the lower end inboard of shell is equipped with sealing ring A, positioning disc is placed in the lower end outside of shell, and positioning disc is installed in the lower end outside annular recess of shell, and is equipped with antiskid stripe in the downside of positioning disc, the outside of positioning disc is equipped with three groups of square groove, is fixedly connected with one group of auxiliary rod through the outside lower end of three groups of movable pieces, increases the contact area and friction force of anchoring device and revetment soil body, provides additional lateral support, helps to improve the overall stability of revetment, prevents revetment soil body from happening lateral displacement or landslide, solved the problem that the existing traditional river channel revetment anchoring structure is insufficient in lateral support in the process.

The utility model discloses a tailing backfill retaining wall which comprises a precast concrete pile seat, one end of the precast concrete pile seat is embedded into the bottom of a mountain, a precast concrete wall is embedded into the upper side of the precast concrete pile seat, and a precast concrete bearing plate is detachably connected between the precast concrete pile seat and the precast concrete wall. The prefabricated concrete walls are lifted to the positions above the prefabricated concrete pile bases, the upper grooves and the lower grooves are connected in an aligned and inserted mode, and so on until the multiple prefabricated concrete walls are arrayed and aligned, the prefabricated concrete walls are fast to assemble, the building efficiency is high, limiting plates are connected between the bent plates on the adjacent prefabricated concrete walls in a lap joint mode, and the construction efficiency is high. The limiting plates are embedded into the gaps between the bent plates and the prefabricated concrete walls in an interference mode, so that the adjacent prefabricated concrete walls cannot be staggered front and back, right-angle structures at the two ends of each limiting plate can prevent the prefabricated concrete walls from being separated left and right, the integrity of the tailing backfill retaining wall is guaranteed, and the multiple prefabricated concrete walls bear force together.

The invention discloses an ecological protection method for a down-dip water-containing rock slope, which relates to the technical field of ecological protection slope protection, and sequentially comprises ecological restoration of the slope surface of the slope and ecological restoration of the platform surface of the slope, ecological restoration of the slope surface sequentially comprises the steps of slope surface cleaning, drilling and vine planting, water drainage hole forming and vegetation concrete spraying of a base layer and a surface layer. The ecological restoration of the platform surface sequentially comprises the steps of cleaning the platform surface, laying an impermeable layer, building an enclosure retaining wall, planting oriental arborvitae and Japanese creeper in the enclosure retaining wall, building a soil retaining ridge, planting ridge plants, arranging a soil covering layer and planting traditional Chinese medicine plants. The greening of the slope surface can be accelerated by using the vegetation concrete and the drilling planting rattan; the slope rock mass is effectively prevented from sliding along the bedding, meanwhile, the down-dip slope is greened, and the ecological protection effect of an existing down-dip rock slope is improved.

The utility model relates to the technical field of municipal construction, and provides a supporting operation platform which comprises a first climbing frame, the first climbing frame comprises first supporting channel steel, first connecting channel steel, second supporting channel steel, second connecting channel steel and third supporting channel steel, and one side of the first climbing frame is fixedly connected with a first supporting frame. And one end of the first support frame is fixedly connected with a second climbing frame. According to the supporting operation platform, the formed supporting operation platform is lowered to the inner side of a groove through lifting equipment, and a constructor can conveniently descend to the inner side of the groove to conduct construction operation through the first climbing rod or the second climbing rod on the inner side of the first climbing frame; a constructor can conveniently tread on the pedal to conduct pipeline installation construction, the situation that the construction efficiency is affected when much water is accumulated on the inner side of the groove is avoided, the inner wall of the groove is supported and protected through the two climbing frames of the same structure, groove collapse is avoided, and the construction safety of the constructor is improved.

The invention belongs to the technical field of mine excavation, and particularly relates to an ionic type rare earth mine liquid injection system which comprises an intelligent mine control system, a liquid injection funnel module, an electromagnetic flowmeter module, a heating module, an electromagnetic inductor module, an electromagnetic valve module and a pressure probe. The other end of the electromagnetic flowmeter module is connected with the control platform and is responsible for measuring the flow and flow velocity of liquid flowing through the pipeline; therefore, the underwater depth of the probe can be obtained according to the measured pressure, and an electric signal is transmitted back to a control center in real time. In addition, liquid level marking lines can be set, the electromagnetic valve is controlled to stop liquid injection if the liquid level marking lines exceed the liquid level marking lines, the electromagnetic valve is controlled to start liquid injection if the liquid level marking lines are smaller than a certain liquid level marking line, and generally, the distance between the liquid level and the ground surface is not smaller than 30 cm.

The utility model relates to an anti-scour slope protection pile for water and soil conservation, which belongs to the field of water and soil conservation and comprises a pile body, a stabilizing head is arranged at the top of the pile body, a movable groove is arranged in the pile body, and a reinforcing pile is movably connected in the movable groove. According to the water and soil conservation anti-scouring slope protection pile, by rotating a sealing cover, a hook is pulled out from an open hole upwards, the hook drives a hanging rod to move upwards, through the characteristics of a torsional spring, when a clamping rod moves to a limiting hole, the clamping rod is driven to reset and rotate to be clamped into the limiting hole, and the clamping rod can be limited and fixed; the upper semi-ring and the lower semi-ring are conveniently disassembled and assembled through the bolts, the upper semi-ring and the lower semi-ring are separated, then the metal net is clamped between the upper semi-ring and the lower semi-ring, the inserting rod of the upper semi-ring penetrates through the metal net for limiting, then the upper semi-ring and the lower semi-ring are conveniently fixed through the bolts, and therefore the metal net is installed. And the effect of convenient installation is achieved.

The utility model discloses a highway subgrade landslide protection structure, which comprises a soil retaining plate and an interception plate, the soil retaining plate is paved on a road surface slope, the bottom end of the soil retaining plate is fixedly connected with a fixing plate, the bottom end of the fixing plate is fixedly connected with the interception plate, the lower side of the interception plate is provided with an alarm mechanism, and the alarm mechanism is connected with the interception plate. An anti-scouring mechanism is arranged at one end of the soil retaining plate, a pulling mechanism is arranged at one end of the soil retaining plate, the scouring force of water flow to soil near the anti-scouring plate when the water flow flows down from the soil retaining plate can be relieved through the buffer rod, the anti-scouring plate and the buffer plate, the soil is prevented from being rapidly washed away, and therefore the working stability of the soil retaining plate is guaranteed; and the soil retaining plates on the two sides are connected together through the pull rods, it is guaranteed that when soil near the soil retaining plate on one side is washed away, the soil retaining plates cannot collapse along with the soil, the stability of the soil retaining plates is further guaranteed, and therefore slope protection is achieved, and landslide is prevented.

The invention relates to a pervious concrete filling structure for a river bottom pit hole and a construction method thereof. According to the scheme, a pervious cement mortar rapid scraping and paving construction technology, a pervious concrete bottom sealing flexible reinforcement anchoring anti-floating technology, a pervious concrete precast block and micro-expansion post-pouring concrete strip beam combined filling technology and a cast-in-place pervious concrete rapid sealing curing system are included. The invention belongs to the field of hydraulic engineering construction, not only can improve the scraping and paving quality and speed of permeable cement mortar, the pit filling effect and the maintenance quality, but also ensures the construction quality, greatly improves the field construction efficiency, saves manpower and cost, and can obtain better technical and economic benefits when being applied to actual engineering.

The utility model discloses a slope protection device for a soil nailing wall. The slope protection device comprises a slope body, a reinforcing mesh attached to the outside of the slope body, a first concrete plate and a second concrete plate, wherein the first concrete plate and the second concrete plate are respectively filled and condensed on the inner side and the right side of the lower end of the slope body; a limiting structure is arranged outside the reinforcing mesh, the limiting structure comprises a first plug pin, a second plug pin, a concrete surface layer and a first PVC mesh, and the first plug pin and the second plug pin are attached to the outside of the reinforcing mesh; a reinforcing protection structure is arranged on the second concrete plate, and the reinforcing protection structure comprises a supporting plate, a second PVC net, an abutting plate, a threaded rod and a sleeve rod; a water guide structure is arranged on the inner side of the slope body and the inner side of the second concrete plate, and the water guide structure comprises a pipeline, a through hole and a water permeable film. According to the slope protection device for the soil nailing wall, soil nailing wall supporting can be conveniently conducted on a slope body, adjustment and reinforcement are convenient, the slope protection effect is good, rainwater can be conveniently guided, and landslide is effectively prevented.

The utility model discloses an anti-slide pile for landslide treatment, which relates to the technical field of side slope treatment and comprises a pile body, the pile body is connected with a diagonal bracing component, and the pile body and the diagonal bracing component are both connected with two anchoring components. Through the arrangement of the pile body, the L-shaped clamping plates, the inclined supporting assemblies and the anchoring assemblies, the supporting angle of the inclined supporting assemblies to the pile body can be conveniently adjusted, meanwhile, the inclined supporting assemblies and the corresponding L-shaped clamping plates can form a tight supporting state after adjustment, and therefore the supporting device can be used for different inclined planes, the adjusting mode is convenient and fast, and the practicability is high. Therefore, the practical application effect is improved.

The utility model provides a civil construction ditch supporting mechanism which comprises a supporting and unfolding structure, the supporting and unfolding structure comprises two connecting strips, threaded holes are formed in the middles of the connecting strips, a transmission lead screw is arranged between the two connecting strips, the transmission lead screw is matched with the threaded holes, and the supporting and unfolding structure is arranged between the two connecting strips. The two ends of the connecting strip are rotationally connected with pushing rods, one end of each pushing rod is rotationally connected with a rotating block, and one end of each rotating block is provided with a swing shaft. By means of the supporting and unfolding structures capable of being unfolded outwards or inwards, the supporting and unfolding structures can push the ditch supporting structures arranged on the two sides to horizontally move outwards or enable the supporting plates to rotate outwards to be attached to the inner wall of the ditch, the inner wall of the ditch is stably supported, and collapse of the excavated ditch is avoided.

The present invention discloses a landslide protection structure for geological disaster prevention and control, and relates to the field of disaster prevention and control equipment. It includes a blocking net and a graded blocking component. The blocking net is arranged on the surface of the slope protection, and a plurality of groups of graded blocking components are evenly arranged on the blocking net. The fixing effect of the blocking net structure on the soil and rocks on the slope is continued, and a graded blocking component is also arranged. The blocking net and the graded blocking component form a mutually pulling relationship. When part of the soil and rocks on the slope slide down, the soil and rocks are intercepted by installing a bottom plate and a fixed side plate to avoid the accumulation of loose soil and rocks in the blocking net and causing a large-scale landslide. In addition, a covering mesh cover is provided, and the soil and rocks dropped in the graded blocking component touch the pressure-sensitive plate. Then, when the soil and rocks accumulate to a certain mass, the loose soil and rocks in the graded blocking component are fixed by the covering mesh cover to avoid further sliding down. The subsequent sliding soil and rocks are once again intercepted and fixed by the next row of graded blocking components, which can reduce the occurrence of landslide disasters caused by the accumulation of loose soil and rocks.

The present invention provides a new type of measuring tool for measuring the steering angle of an electric vehicle, including a base, and an angle measuring device and a wheel guide groove installed on the base; the angle measuring device is rotatably installed on the base, a pointer is provided on the angle measuring device, a scale is installed on the base, the pointer points to the scale, the wheel guide groove is provided on the side wall of the base, one end of the wheel guide groove contacts the angle measuring device, one end of the wheel guide groove contacts the ground, and the wheel enters the angle measuring device through the guide groove for measurement. The measuring tool described in the present invention adopts a cylinder method to control the height adjustment of the detection device, which makes it more convenient to realize the rotation of the front wheel and more accurate to measure the angle; the measuring tool described in the present invention cooperates with the wheel guide plate through the front limit block to better fix the wheel and prevent the problem of landslide.

This invention discloses a deep foundation pit support structure on a slope, comprising: a vertically arranged transverse cast-in-place pile group; longitudinal cast-in-place pile groups at both ends of the transverse cast-in-place pile group near the bottom of the slope; two longitudinal cast-in-place pile groups perpendicular to the sides of the transverse cast-in-place pile group; both the transverse and longitudinal cast-in-place pile groups consist of several vertically arranged cast-in-place piles; the tops of the transverse cast-in-place pile group and the two longitudinal cast-in-place pile groups are connected to each other by a capping beam; the capping beam has a bracing at one end of its two opposite short sides and the end furthest from its long side; corner braces are provided between the two short sides and the long side of the capping beam; one end of each corner brace is connected to the middle of the short side of the capping beam, and the other end is connected to the long side of the capping beam; the end faces of the two short sides of the capping beam are connected to one end of an end support through a head plate; the other end of the end support cooperates with a support seat set in the slope; the end support has a set inclination angle; and oblique end supports are provided on the capping beam to transmit eccentric loads and maintain the external stability of the foundation pit.

The present invention discloses a hydraulic internal aligner, which relates to the technical field of mountain pipeline construction equipment, including an aligning frame and a driving bracket, an aligning assembly is arranged on the aligning frame, a driving assembly is arranged on the driving bracket, an elastic connection assembly is arranged between the aligning frame and the driving bracket, the driving assembly includes a driving wheel that can be flipped and pressed against the inner wall of the pipeline and a first hydraulic motor whose output end is fixedly connected to the driving wheel; the elastic connection assembly includes a universal ball joint fixed between the aligning frame and the middle part of the driving bracket, a plurality of abutment rods are slidably arranged on the aligning frame, a sliding seat that is slidably matched with the driving bracket is hinged on the abutment rod, and a first elastic member is fixedly connected between the abutment rod and the aligning frame. The present invention provides a hydraulic internal aligner that can reliably adapt to various types of pipelines and realizes the split bending of the aligning frame and the driving bracket through the flippable universal ball joint and the elastically arranged abutment rod and the sliding seat, thereby improving the bending ability.