15 results about "Hardpan" patented technology

The application discloses a photovoltaic pile for a rock-soil composite hard stratum, which comprises a main bearing pile pipe and a plurality of anchoring bars. The main bearing pile pipe has a first end and a second end arranged in an axial direction. The first end is provided with a through hole extending in a first direction to connect a photovoltaic support. The plurality of anchoring bars are connected to the second end and uniformly distributed in a circumferential direction of the main bearing pile pipe. The plurality of anchoring bars extend in the axial direction of the main bearing pile pipe. The main bearing pile pipe and the plurality of anchoring bars are arranged in a staggered manner in the axial direction of the main bearing pile pipe. The main bearing pile pipe and the anchoring bars are inserted into the rock-soil composite hard stratum and poured to ensure the stability of the whole photovoltaic pile. Since the hole diameter of the foundation pit of the anchoring bars is much smaller than the hole diameter of the foundation pit of the main bearing pile pipe, large drilling equipment is not needed, and the excavation difficulty is greatly reduced, which is particularly suitable for slope protection areas with complex terrain and limited space.

A detachable locking beam structure for an open-cut foundation pit in a soil-rock composite stratum and a construction method therefor. The structure comprises: foundation pit retaining piles (1), formed by drilling through the upper weak stratum, pre-split steel pipe piles (6) in the lower hard stratum, anchor cables (4), anchor rods (5), a secondary lining structure (2), and a locking beam (3). The locking beam (3) is a prefabricated component integrally cast by using integrated construction technology, which can be customized and mass-produced according to different engineering requirements and can be repeatedly used in engineering construction, thereby solving problems in underground engineering construction such as the difficulty of on-site rebar binding, difficulty in concrete pouring, long curing time, non-recyclability, and high project costs.

The utility model relates to a three-shaft mixer drill bit which comprises a drill rod, a cone-shaped front guide structure is arranged at the front end of the drill rod, diamond particles are inlaid on the surface of the front guide structure and are arranged in a honeycomb shape, a soil loosening structure is arranged behind the front guide structure, and a main cutting structure is arranged behind the soil loosening structure to process chippings. The deslagging structure is arranged behind the main cutting structure to avoid residue attachment, the connector is arranged on the rear side of the main cutting structure and used for being connected with a piling frame, and the ultrasonic transducer is arranged on the rear side of the drill rod. The front guide structure can have certain strength through diamond particles, the conical design is beneficial to enhancing impact force, operation on a hard stratum is more convenient, and the soil layer is subjected to primary treatment through the soil loosening structure and then subjected to secondary treatment through the main cutting structure; the main cutting structure is prevented from making direct contact with large-particle soil, the problems that abrasion is fast and stirring is uneven are solved, and the problem that the drill bit is prone to being blocked is solved through the arrangement of the ultrasonic transducer and the deslagging structure.

The utility model discloses a waterproof art retaining wall which mainly comprises a foundation raft plate, a concrete wall body, an inclined strut structure and a tie bar. The foundation raft plate is poured on a hard stratum, the concrete wall body is poured on the foundation raft plate, and a high soil layer and a subsoil layer are arranged on the two sides of the wall body respectively. The inclined strut structure, the foundation raft plate and the concrete wall body are integrally poured, and the inclined strut is arranged on one side of the subsoil layer and buried under the subsoil layer in a covering mode. The fixed section of the tie bar is fixed in a concrete wall body, the extending section of the tie bar is obliquely and downwards buried in a high soil layer, and the fixed section is fixedly connected with a buckling piece. The waterproof layer is arranged between the concrete wall body and the high soil layer, so that water permeation is effectively prevented. And the decorative plate is fixed on the wall body through the fastener and is arranged on one side of the subsoil layer, so that the appearance is improved. The waterproof art retaining wall is suitable for complex terrains and high soil layer environments, and has high adaptability, stability and a good visual effect.

The invention provides a cofferdam underwater lowering method under a deeply-buried hard stratum. The cofferdam underwater lowering method comprises the steps that firstly, a stratum pretreatment area is divided; then preprocessing the preprocessed stratum area; then the cofferdam is assembled and lowered; after the cofferdam bottom is implanted, mud suction sinking is started; cofferdam soil layer auxiliary cleaning is conducted; continuously sucking mud to sink the cofferdam, and cleaning and washing the cofferdam on the inner side of the cofferdam; and finally, the cofferdam sinks in place. The method disclosed by the invention is novel, energy-saving, environment-friendly, safe and reliable, is beneficial to reducing the disturbance of adjacent stratums and reducing the probability of secondary disasters under the condition of ensuring the water entering and lowering effect under the hard stratums of the cofferdam, and is convenient to construct.

The invention discloses a soil detection device for land utilization protection, belongs to the technical field of natural resource monitoring, and aims to solve the problems that existing soil detection equipment is poor in field mobility and inaccurate in depth positioning, and detection elements are easily polluted. The device comprises a fixed support, a movable cart, a tunneling assembly, a lifting driving mechanism, a protection assembly, a detection switching mechanism, a power mechanism, a detector and a controller. The lifting driving mechanism drives the unit to accurately position the detection depth, the protection assembly encloses a sealing cavity through a specific structure to protect the detector, the detection switching mechanism switches sealing and detection states through a baffle and a filter plate, and the power mechanism is provided with a buffer structure to cope with hard stratum impact. During working, the device moves to a detection point for tunneling and downward detection and is switched to a detection state to realize in-situ detection, and the controller stores and exports associated data in real time. The device can flexibly replace the detector, is suitable for various land utilization protection scenes, and is accurate in detection, simple and convenient to operate and low in failure rate.

The application provides a mineral geological exploration sampling device, and relates to the field of geological exploration sampling, comprising a U-shaped frame, two mounting plates are fixedly connected to the surface of the side of the two vertical plates of the U-shaped frame, a guide rod is fixedly connected between the two mounting plates on the same side, the U-shaped frame, the mounting plate, the guide rod, the connecting sleeve, the driving box, the driving shaft, the locking cavity, the through slot, the sampling cone cylinder, the connecting rod, the locking slot, the opening and the self-locking assembly are matched to realize linkage type structural connection of the sampling cone cylinder and the driving shaft, replace the operation mode of manually inserting the sampling tube into the mineral land, and the sampling cone cylinder does not need to be manually pushed, thereby effectively improving the time-consuming and labor-consuming problem of manual operation when sampling the hard stratum, building a detachable connection basis of the sampling cone cylinder and the driving structure, breaking the limitation of fixed connection of the traditional sampling device cone cylinder and the driving end, and providing structural support for subsequent cone cylinder disassembly optimization.

The utility model relates to the technical field of building construction, and provides a square pile foundation convenient to construct, which comprises a square pile protection shell, and a reinforcing frame, a metal net, a reinforcing column, a reinforcing rib and a stabilizing frame which are sequentially arranged in the square pile protection shell from outside to inside, the bottom end of the outer side wall of the square pile protection shell is in a trapezoid shape. The bottom end of the outer side wall of the square pile protection shell is trapezoidal, if the square pile protection shell encounters a hard stratum, the square pile protection shell can be better driven into a soil layer through the inclined face of the trapezoid, then the square pile protection shell can be driven into the soil layer according to the requirement for the penetrating depth, and through a reinforcing frame, a metal net, reinforcing columns, reinforcing ribs and a stabilizing frame, the square pile protection shell can be better driven into the soil layer. The square pile protection shell is subjected to multiple reinforcement, the bearing capacity of the square pile protection shell is better, meanwhile, the square pile protection shell can bear larger loads through the poured high-strength concrete, the bearing capacity and durability of the square pile protection shell are improved, and therefore the purpose of reinforcing the square pile protection shell is achieved.

The invention discloses a high-stability photovoltaic stand column, and belongs to the technical field of photovoltaic supports, the high-stability photovoltaic stand column comprises a stand column, the top of the stand column is fixedly provided with a fixing plate, the top of the fixing plate is fixedly provided with a photovoltaic support, the stand column is internally provided with a through hole, the through hole is internally provided with a disc, and the fixing rod is sleeved with a sliding sleeve. Therefore, the driving mechanism drives the driven wheels to rotate, power is transmitted to the driving sleeve through the first universal coupling, the spiral ground thorns are driven to rotate through the driving rod and the second universal coupling which are in polygonal fit, and meanwhile the adjusting mechanism drives the disc and the fixing rod to move downwards, so that the rotating spiral ground thorns are gradually cut into soil; compared with static insertion of a comparison case, rotary cutting insertion can directly crush cakes and small obstacles in hard soil and frozen soil, the insertion resistance is remarkably reduced, it is ensured that the ground thorns accurately reach the designed depth, and the problems that in the comparison case, insertion is difficult and the depth is insufficient in the hard stratum due to the fact that the ground thorns depend on the downward pressure of a lead screw are solved.

The invention provides a sinking construction method for a double-wall steel cofferdam of a deep and thick cementitious gravel layer. The sinking construction method comprises the following steps that S1, construction positioning is conducted, specifically, the installation position of the cofferdam is subjected to positioning marking; s2, a platform is built, specifically, the construction platform is built according to the position of the positioning mark; s3, a walking type three-shaft mixing pile machine is installed, specifically, the walking type three-shaft mixing pile machine is installed on the platform; s4, bottom layer pretreatment is conducted, specifically, a three-shaft stirring pile machine is adopted for drilling construction to conduct pre-stirring loosening on the stratum within the cofferdam projection range; s5, the stratum is vibrated and loosened, specifically, a hydraulic vibration hammer is used for clamping the steel sheet piles or the steel pipe piles to conduct zoning and layered vibration loosening on the hard stratum in the cofferdam; s6, a soil taking platform is built, specifically, a telescopic boom excavator is arranged for soil taking operation; and S7, cofferdam assembling and sinking are conducted, specifically, the cofferdam stably sinks to the designed elevation by adopting the mode of combining sectional assembling, water injection sinking and mud suction and soil taking, and the problems that in the cementing high-strength dense gravel stratum, excavation construction is difficult, and cofferdam sinking is difficult are solved.

The construction method comprises the steps that a guide ditch is excavated, guide rails are placed on the two sides of the guide ditch, a positioning component is placed and temporarily fixed on the guide rails on the two sides in a crossing mode, and a positioning line is marked on the positioning component; a pile frame of a pile machine is positioned, and rotary digging hole forming and slurry retaining wall construction are conducted; prefabricated flow-state solidified soil is poured into the preformed holes, raw materials of the prefabricated flow-state solidified soil comprise a curing agent and smashed and screened undisturbed soil, and the prefabricated flow-state solidified soil is stirred outside the site and poured through a guide pipe on the site; before the interior of the preformed hole is solidified, the profile steel coated with the antifriction agent is positioned and inserted into the preformed hole, then the profile steel and the positioning components on the two sides are temporarily fixed, and the design elevation of the profile steel exceeds the elevation of the top beam; constructing a crown beam, and performing isolation treatment on the crown beam part of the profile steel before the crown beam is poured; and after the main body project and the foundation pit are backfilled, the profile steel is directly pulled out firstly, and then the grout is refilled into the gap. The method is not limited by a hard stratum, the profile steel can be recycled, and the position degree is accurate.

The invention discloses stirring pile planting and middle digging hole guiding equipment and a using method, and relates to the technical field of precast pile planting, the stirring pile planting and middle digging hole guiding equipment specifically comprises a middle digging mechanism capable of conducting middle digging hole guiding, a first power head and a second power head, the first power head and the second power head can be switched, a stirring mechanism is connected to the first power head, and the middle digging mechanism is connected to the second power head; the middle digging mechanism is used for penetrating through a hard stratum to form a through hole channel allowing the stirring mechanism to pass through, or the middle digging mechanism is used for penetrating through a sand stratum to stir and deposit muck so as to provide a hole guiding channel for guiding the precast pile to pass through. A stirring pile planting construction method, a stirring middle digging pile planting construction method and a middle digging hole guiding pile planting construction method are integrated, so that a precast pile can penetrate through a hard rock stratum, iron plate sand and other complex stratums, the geological adaptability is improved, the stirring pile planting efficiency can be improved, the hard stratum rock breaking time and the pile planting time are saved, the precast pile quality is improved, and the construction period is shortened; the economic benefit is improved.

The invention discloses a vibroflot and drainage plate combined soil treatment device and a construction method, the vibroflot and drainage plate combined soil treatment device comprises a vibroflot, the vibroflot is located right above a treatment area with a hard stratum and a soft stratum, in the treatment area, the vibroflot forms a hole and sinks, firstly penetrates through the hard stratum, and then sinks into the soft stratum until the designed depth is reached; one end of the drainage plate is located on the ground, the other end of the drainage plate synchronously sinks to the designed depth along with the vibroflot, the vibroflot is lifted to move relative to the drainage plate, the soft soil layer backfilling holes enable the end, sinking along with the vibroflot, of the drainage plate to be reserved in the soft soil layer, and the vibroflot stops working or continues working in the lifting process to compact the soil layer section by section. According to the construction method, two working procedures are combined into a whole, under the condition of the ultra-deep and ultra-hard stratum, the vibroflotation compaction of the foundation and the construction of the drainage plate can be synchronously completed only through vibroflotation, the overall work efficiency is remarkably improved, the vibroflotation compaction and the drainage plate are synchronously constructed, and therefore the total construction period is greatly shortened, cost is reduced, and efficiency is improved.

The invention discloses an intelligent pre-stirring pile planting ecological sheet pile construction method, and belongs to the technical field of geotechnical engineering support construction. According to the method, aiming at the technical defects of fixed stirring parameters, non-uniform soil body softening effect, unstable mud tank forming quality, limited construction efficiency and the like in a traditional pre-stirring pile planting process, multiple types of soil body parameter sensors, an intelligent central control system and a dynamic slurry mixing device are integrated on stirring equipment; and an integrated intelligent operation mode of real-time monitoring of soil parameters, dynamic adjustment of stirring parameters, accurate proportioning of slurry and closed-loop control of the quality of the mud tank is constructed. According to the method, precise and intelligent construction under different stratum conditions is achieved, the efficiency and quality of ecological sheet pile implantation in the hard stratum are greatly improved, and disturbance of construction to the surrounding environment is reduced.

The application provides a loess plateau dwarf apple organic planting intelligent water and fertilizer integrated equipment and process, relates to the apple planting technical field, and includes a four-wheel bearing vehicle, a water and fertilizer integrated assembly is arranged in the four-wheel bearing vehicle, organic water and fertilizer is stably supplied, and automatic proportioning of water and fertilizer is completed, further includes a soil turning and covering mechanism, the soil turning and covering mechanism contains a connecting support, a connecting plate is fixed below the connecting support, a soil turning arc-shaped plate is installed at the front end of the connecting plate, the loess plateau hardpan soil is broken, and a directional irrigation trench is plowed, a soil covering plate is installed at the rear end of the connecting plate, and the irrigation area is covered to reduce water and fertilizer evaporation loss, in the application, the soil turning arc-shaped plate is arranged in front of the apple tree root surface hardpan, the irrigation trench is plowed to the trunk, the water and fertilizer infiltration channel is opened, the organic water and fertilizer is quickly infiltrated to the dwarf apple shallow root system absorption area, the water and fertilizer utilization rate is significantly improved, and the nutrient absorption demand of the dwarf apple is met.