66results about How to "Improve soil extraction efficiency" patented technology

The invention discloses a portable shallow soft soil original state sampling device and a sampling method. A solution is provided for solving the problems that soft soil with a high water content is likely to fall along the inner wall of a sampler, an original state soil column is easily disturbed in repairing, separating and post-treating processes, and the inner cavity of the sampler is difficult to clean and the like. The sampling device comprises the sampler, a positioner and a separator. Smooth sampling is realized through a sampling rod, a steering base, a force transfer base and a sampling barrel; a negative pressure is generated in the inner cavity of the force transfer base by virtue of a piston and a baffle plate, so that a soil sample is prevented from falling. By opening out a liner pipe and the separator, the soil column is repaired, separated and packaged. The method comprises the following steps: removing miscellaneous soil in the surface layer, assembling the sampling device, and pressing the sampler into a specific depth; then lifting up the sampling rod to close the inner cavity of the force transfer seat; and screwing the sampler out, detaching the sampling barrel, pushing the liner pipe out by using the separator and performing packaging with a cover. The device disclosed by the invention is simple in structure, convenient to operate, small in sampling disturbance and high in efficiency.

The invention discloses a primary state soil sampler for loose sandy soil, comprising inner and outer sleeves, wherein, the front end of the outer sleeve is a cone cutting edge, the inside of the cutting edge is provided with a guiding inner cone, the front end of the inner sleeve is provided with a plurality of elastic cap liners matched with the guiding inner cone, the central section of the inner sleeve is provided with sockets of soil separators, the front end of the inner sleeve is provided with a socket of a soil sealing plate, and the rear portion is provided with a jack of a synchronous positioning pin. The usage comprises the following steps that: before collecting soil, the inner sleeve is inserted into the outer sleeve and inserted into the synchronous positioning pin, the outer sleeve is pressed in soil by force application, then the inner sleeve is pressed to push the elastic cap liners to come together with the guiding inner cone for close up; the outer sleeve is lifted,the soil sealing plate is inserted into the socket, and then the inner sleeve is pulled out; the soil separators are respectively inserted into the sockets, and then the soil sealing plate and the soil separators are successively pulled out, the soil flowed out with each plate are collected and weighed to get a value, and the value is divided by the volume between the soil separators to get the soil bulk density of different depths.

The invention discloses an underwater blasting soil sampling device and method of a soil body under foot blades of an open caisson, and relates to the technical field of bridge foundation construction. The device comprises the open caisson, wherein the open caisson comprises an open caisson wall; the foot blades are arranged at one end of the open caisson wall; the open caisson is provided with a plurality of guide holes; the guide holes penetrate through the top end of the open caisson wall and the foot blades; and bracket supports are arranged at the top end of the open caisson wall. The device further comprises blasting areas; the open caisson is pressed against the blasting areas; the blasting areas are provided with blasting holes located below the foot blades and communicating with the guide holes; and the blasting areas are further provided with blasting grooves adjoining to the inner wall of the open caisson wall. The underwater blasting soil sampling device of the soil body under the foot blades of the open caisson can avoid the diving operation in the blasting process and greatly improve the soil sampling efficiency of the soil body under the underwater foot blades.

The invention relates to the technical field of landscaping and discloses a garden soil sampling, drying and ingredient detecting device. The garden soil sampling, drying and ingredient detecting device comprises a base, wherein a sleeve slot is formed in the top of the base, a sampling barrel is fixedly sheathed with interior of the sleeve slot, an intermediate block is arranged at the middle part of the inner cavity of the sampling barrel, a sampling pipeline is fixedly arranged at the bottom of the intermediate block, the bottom of the sampling pipeline runs through the sampling barrel andextends to the exterior of the bottom of the base, and the outer surface of the sampling pipeline is respectively movably connected with the sampling barrel and the interior of the base. The garden soil sampling, drying and ingredient detecting device has the advantages that a rocking bar is driven to move down by virtue of a pedal, a compression spring deforms under stress, elastic extrusion is realized, the intermediate block drives the sampling pipeline to move down, sampling is carried out on garden soil, soil sampling efficiency can be beneficially increased, both time and labor are saved, then a sliding chute and a sliding block are used cooperatively, the pedal can beneficially drive a connecting plate to move downward, use of a common soil sampler is avoided, and workload of a worker cannot be increased.

The invention discloses a piston type fixed-depth soil core sampling device and a use method thereof, relates to a soil core sampling device and a use method thereof, and aims to solve the problems that a conventional soil sampling device difficultly excavates and takes out fixed-length undisturbed soil from a drill body and the sampling error is outstanding. The piston type fixed-depth soil core sampling device comprises a drilling shank, a push rod clamping slot, a piston push rod, a piston, a drilling bit and drilling bit saw teeth. The use method comprises the following steps: 1, clamping a clamping shank of the piston push rod to the push rod clamping slot correspondingly according to a sampling depth; 2, vertically placing the piston type fixed-depth soil core sampling device at a point position to be sampled; 3, starting the drilling bit saw teeth, and plugging the piston type fixed-depth soil core sampling device into the soil at the point to be sampled to reach the sampling depth; and 4, taking out the piston type fixed-depth soil core sampling device, putting on the ground flatly, and cutting off layer by layer with a tool, thus completing fixed-depth soil core sampling. The piston type fixed-depth soil core sampling device is mainly used for collecting soil.

The invention relates to the technical field of desilting systems, and discloses a device for rapidly taking soil under a deep-water condition. The device comprises an air silt suction system, a rock breaking system and a sealed tank body, wherein the rock breaking system comprises a rock breaking mechanism, a power mechanism, a submerged cable and a power supply mechanism; the rock breaking mechanism is connected with the power mechanism; the power mechanism is connected with the power supply mechanism through the submerged cable, is arranged in the sealed tank body, and is arranged on the silt suction system through the sealed tank body; the rock breaking mechanism connected with the power mechanism is positioned outside the sealed tank body. The device is free of limitation of the water depth, and is adapted to various soils; in case of cement rocks, the rock breaking capability can be improved in a manner of adding a counterweight, and broken rocks are sucked into a silt discharging pipe, and are discharged out of an open caisson.

The invention discloses a portable soil body in-situ density tester which comprises five parts, namely power equipment, soil sampling equipment, a bulldozing structure, a weighing instrument and a base; the power equipment is divided into a lifting device and a pressing device; the pressing device adopts a jack mechanism capable of being inverted; the lifting device is of a small gear structure, and the structure comprises five parts of a transmission gear, a transmission rack, a hand-cranking handle, a transmission rack support and a supporting frame. The portable soil body in-situ density tester has the advantages that the in-situ density of the soil body is measured, the test principle is clear, the structure is simple, the test steps are few, the speed for penetrating into a soil layerfor soil sampling and the lifting speed after sampling can be freely controlled, the soil sampling efficiency is high, and the detection time is shortened; the adopted instrument is small in size, does not need an external power supply and is convenient to carry, the average natural density of the taken soil sample is directly measured, and the taken soil sample is pushed out after the test is finished, so that secondary disturbance of the test is avoided, and the accuracy of a density test result is improved.

The invention provides an undisturbed soil electric sampling device and system. The device comprises a handle, a dowel steel with vertical grain and an auger drill bit which are connected in sequence, a sleeve, inversed wedged shape iron hoops, a pair of slant threaded rods and a ring knife drill bit; the sleeve is composed of a plurality of steel discs surrounding the periphery of a platform, the platform is connected to the top ends of the steel discs, and wedged structures are arranged on the inner sides of the steel discs; a screw thread is arranged on the upper end of each steel disc, and nuts which are located on the upper portions of second through holes are connected to the upper ends of the steel discs through the screw threads; the inversed wedged shape iron hoops are located in sleeve, and when the nuts are rotated to make the steel discs move upward relative to the sleeve, the inversed wedged shape iron hoops can be jointed with the wedged structures and push the wedged structures outward; the slant threaded rods are symmetrically meshed with the vertical grain of the dowel steel vertically, so that the slant threaded rods rotate, and the dowel steel can move in the vertical direction; a main body of an ultrasonic transducer can replace the auger drill bit and can be connected with the dowel steel detachably; the ring knife drill bit is connected to a vibration end of the ultrasonic transducer; the device further comprises a driving power source which is used for supplying power to the ultrasonic transducer.

The invention discloses an automatic soil sampler. The automatic soil sampler comprises a lifting device and a soil sampling device, wherein the lifting device comprises a plurality of lifting outer tubes; the lifting outer tubes are connected together through a fixing support; a driving motor is arranged above the fixing support; a power transmission rod is fixed below the driving motor and penetrates through the fixing support; the soil sampling device comprises a soil sampling box body; lifting inner tubes which are in sliding fit with the lifting outer tubes are fixed on the top of the soil sampling box body; the power transmission rod further penetrates through the soil sampling box body and extends to a position below the soil sampling box body; a lifting rotation threaded section and a soil sampling spiral section are separately arranged on the power transmission rod; two half hoops are arranged above the soil sampling box body and can be combined to form a swivel nut; and by combination and separation of the two half hoops, lifting of the power transmission rod is controlled. The automatic soil sampler is simple in structure and convenient to use, the soil sampling spiral section can be easily lifted out of the ground, meanwhile, the collected soil can enter the soil sampling box body, the work load of operators is relieved, and the soil sampling efficiency is improved.

The invention relates to a construction method of an underwater large-depth open caisson penetrating through a hard and difficult-to-break soil layer. The construction method comprises the steps thatthe open caisson adopts non-drainage sinking, an overwater working platform is placed on the water surface in the open caisson, high-pressure crushing equipment and underwater mud taking equipment areinput on the platform; the high-pressure crushing equipment is adopted to break layer by layer, a drill rod of the high-pressure crushing equipment drills into the hard soil layer by the specific depth, ultra-high-pressure water flows are sprayed through spraying nozzles of the high-pressure crushing equipment to cut soil, and the soil is crushed into mud; and after the high-pressure crushing equipment fully and effectively crushes the hard soil, the underwater mud taking equipment is adopted, and through the air mud suction principle, the mud formed after the soil is crushed is taken out ofthe open caisson through a mud discharging pipeline in the mud taking equipment. The method that the working platform is placed on the water surface in the open caisson, the downhole soil is crushed at the high pressure firstly, then the mud is taken, and layer-by-layer sinking is achieved is adopted, the crushing mud taking effect is good, thus the open caisson safely and smoothly penetrates through the hard and difficult-to-break soil layer, and the quality and safety of sinking of the open caisson are guaranteed.

The invention discloses a soil sampling device for construction engineering. The device includes a fixing base. Multiple supporting feet are uniformly arranged on the bottom of the fixing base. A vertical sampling cylinder is sleeved in the middle of the fixing base. The upper and lower ends of the vertical sampling cylinder are open. A cabin is arranged above the fixing base. A vertical slide rodis arranged on the left side of the bottom of the cabin. The vertical slide rod is sleeved in a vertical sleeve arranged at the corresponding position of the fixing base and passes through the fixingbase. The invention provides the soil sampling device for construction engineering, which is ingenious in structure and reasonable in arrangement. The soil sampling device realizes efficient manual soil sampling and is convenient in operation. The soil sampling device is ingeniously provided with telescopic supporting frames wo facilitate the supporting and the adjustment of the height. The soilsampling device is ingeniously provided with a manual lifting mechanism so as to improve the soil sampling efficiency and help to collect the sampling mechanism in the soil. The soil sampling device is ingeniously provided with a manual driving mechanism to realize the convenience and labor saving of the sampling.

The present invention discloses a different-depth soil pollution detection device. The device comprises a trolley, a running cavity with a downward opening and communicated with the outside is formedin the trolley, a hydraulic cylinder is fixedly arranged in the upper end wall of the running cavity, and a hydraulic rod with the upper end penetrating through the upper end wall of the running cavity and the lower end located at the outside is arranged at the lower end of the hydraulic cylinder in a power mounting mode. The invention relates to the different-depth soil pollution detection device. Compared with manual soil sampling, the soil sampling device controlled by the hydraulic rod has the advantages that the soil sampling efficiency is greatly improved, through adjustment and controlof the elastic rope, the detection test tube can directly enter the soil sampling device, so that the purpose of sampling soil at different depths is achieved, and after the soil at different depths is taken out, the insertion block can be directly pulled out to achieve the purpose of storing an experimental sample, so that the detection efficiency is greatly improved.

The invention discloses a novel soil sampler which is composed of a ring cutter, a sampling tube, an end cover and a joint. The ring cutter is fixed at the bottom of the sampling tube, the end cover is sealed on the top of the sampling tube, and the joint is fixed on the top of the end cover. The ring cutter is inserted into the bottom of the sampling tube composed of two semicircular segments. The end cover is inserted into a tube cavity of the sampling tube and connected by a fixing screw, and the bottom surface of the end cover is provided with a cylindrical limiting groove. The surface ofthe end cover is provided with a venting hole communicated with the limiting groove, the top of the end cover is provided with a joint groove, and the joint is embedded in the joint groove. A throughhole is respectively opened in the central axes of the joint and the end cover, and the piston rod is inserted into the ring cutter through the through hole in the joint. A piston is fixed at the bottom of the piston rod. The bottom surface of the piston is flush with the bottom surface of the ring cutter, the top surface of the piston is provided with a limiting protrusion, and the outer diameterof the limiting protrusion is equal to the inner diameter of the limiting groove. The soil sampler is simple in structure, capable of preventing failure of sampled soil and preventing sampling failure caused by scattering of the sampled soil in the lifting process.

The invention discloses a direct pressure type gasoline engine soil sampler comprising a cylinder driven by a gasoline engine and a gearbox, wherein a soil sampling rod part is inserted into the cylinder, the soil sampling rod part comprises an impact rod connected with the cylinder, the impact rod is connected with a soil sampling tube, and a soil sampling head is arranged at the tail end of the soil sampling tube; the diameter of the soil sampling tube is 90-120mm, and at least three soil sampling grooves are symmetrically formed in the soil sampling tube. According to the technical scheme of the invention, a tool bit of the direct pressure type gasoline engine soil sampler utilizing a gasoline engine as power quickly enters the soil under the action of high frequency hammering, and the soil entering depth can be more than certain meters. The soil sampler has the advantages of being high in speed, simple to operate, light in mass, convenient to carry for carrying, and the like, and has the time-saving and labor-saving effects.

The invention relates to the field of soil sampling devices, in particular to a soil sampler, comprising a fixed sleeve, a soil-taking structure, a water injection structure, a lubricating structure, a bulldozing structure and an air intake structure; the soil-taking structure can drive The water injection structure works, and through the work of the water injection structure, when the soil borrowing structure is working, the soil samples taken from the soil borrowing structure can be injected with water, and the soil samples that need to be taken from the soil can be soaked to reduce the soil hardness. The purpose of this is to speed up the efficiency of soil fetching and facilitate soil fetching. Through the combined use of the fixed sleeve and the soil fetching structure, the power of the feet can be used to achieve rotary soil fetching without repeated rotation of the hands, which can save manpower. , It can also use the power of the feet to accelerate the speed of inserting the soil, and the way of rotating the soil can be further inserted into the interior of the soil quickly, so that it can achieve rapid soil extraction and facilitate soil sampling.

The invention discloses a convenient and labor-saving soil drill. The convenient and labor-saving soil drill comprises two stand columns, wherein the tops of the two stand columns are fixedly connected with a top plate; a soil drilling mechanism is arranged at the bottom of the top plate; the top end of the soil drilling mechanism extends to the top of the top plate; the soil drilling mechanism comprises a supporting ring; the supporting ring is located at the bottom of the top plate; the supporting ring is located at the inner sides of the two stand columns; a thread rod is embedded into thesupporting ring; the thread rod is in thread connection with the supporting ring; and the top end of the thread rod extends to the top of the top plate. According to the convenient and labor-saving soil drill disclosed by the invention, the soil drilling mechanism is arranged; in actual utilization, a user only needs to rotate a handle by hands to drive a rotary table to rotate, so that a soil sampling pipe can rotate downward and is inserted into soil; downward pressure is provided for the soil sampling pipe all the time; the handle is reversed and the soil sampling pipe is pulled out, so that a soil sample in the soil sampling pipe can be taken out and soil sampling work is finished; the convenient and labor-saving soil drill is relatively convenient to use; and the stretching length ofthe handle can be rapidly adjusted and the rotary table is rotated so that the convenient and labor-saving soil drill is relatively light and labor-saving and has relatively strong practicability.

The invention discloses a soil borrowing device for an extra-large open caisson and a using method of the soil borrowing device. The soil borrowing device comprises a main steel pipe, N hydraulic oil cylinders, N supporting rods, N scrapers and a power head, wherein the main steel pipe comprises a bottom section steel pipe and a plurality of elongated section steel pipes for splicing and elongating; a bottom end of the bottom section steel pipe is fixedly provided with an annular clamping groove; a fixing ring is fixedly arranged on an upper outer circumferential surface; the N hydraulic oil cylinders are uniformly distributed at the periphery of the bottom section steel pipe, and the upper ends of the oil cylinders are fixed with the fixing ring respectively; the upper ends of the N supporting rods are hinged with the lower ends of the hydraulic oil cylinders; two ends of each scraper are hinged with the supporting rods and the annular clamping groove respectively; and the power head is fixed with an upper extending end of the main steel pipe. When the soil borrowing device is in a non-operating state, the scrapers are tightened in a suspender shape and have small diameters, a smaller hole is needed to be formed on the top of the open caisson, and integrity of the open caisson can be improved; and when the soil borrowing device is in an operating state, the scrapers are opened in an umbrella shape, the pulping area is enlarged, and the soil borrowing efficiency is improved.

The invention discloses a portable mechanical automatic soil sampling device. The device comprises a top end supporting plate, a bottom end supporting plate, a first vertical clamping plate, a secondvertical clamping plate, a sampling mechanism, an electric driving mechanism and a solar cell panel. A first gear is arranged on one side of the outer wall of a drilling cylinder, and a bidirectionalmotor drives the first gear to rotate forwards or reversely, so that mechanical sampling of a soil or rock stratum sample is realized. Meanwhile, a second gear is further arranged on the other side ofthe outer wall of the drilling barrel, the handle is made to rotate forwards or reversely in a manual mode, and therefore manual sampling of soil or rock stratum samples is achieved. According to thescheme, mechanical sampling and manual sampling of soil or rock stratum samples are achieved at the same time, the effectiveness and practicability of the soil sampling device in outdoor and field work are effectively improved, the soil sampling device is suitable for sampling work under various industrial and mining conditions, the soil sampling efficiency is higher, the soil sampling and sampling labor loads of geological workers are greatly reduced, and the soil sampling device is more economical and environmentally friendly.

The invention relates to a vehicle-mounted automatic soil sampling device. The device comprises a GPS positioner, a supporting frame, a vehicle-mounted connecting device, a power controller, a supportejector rod, a support, a hydraulic pump, a power source, a lifting driving device, a soil stripper and a soil sampling drill. A bottom groove extends out of a car hopper, the soil sampling drill islifted by the lifting driving device, the lifting driver drives the soil sampling drill to collect a soil sample in a target area, and when the soil sampling drill reaches the soil sampling depth, thesoil sampling drill is lifted to a fixed position, the soil stripper strips soil, thus completing the soil sampling operation. According to the method, the land parcel in the soil sampling area can be put on line, the position coordinates of the soil sampling point can be planned in advance according to the shape of the land parcel, a soil sample of the planning point can be collected according to the GPS positioning function, and the coordinate points can be recorded on line.

The invention discloses a novel geotechnical engineering investigation sampler and relates to the field of a sampler. The novel geotechnical engineering investigation sampler comprises a top plate, a shaft sleeve is fixedly connected to the middle of the top end of the top plate in a penetrating mode, a soil sampling barrel is movably inserted into the top end of the shaft sleeve in a penetrating mode, the outer wall of the top of the soil sampling barrel is in threaded connection with the inner wall of the shaft sleeve through an formed threaded groove, and a push rod is movably inserted into the top end of the soil sampling barrel in a penetrating mode; the bottom end of the push rod is fixedly connected with a push plate and provided with a reset mechanism; and the top end of the push rod is provided with a rotating mechanism. The push rod and the push plate which are arranged in the soil sampling cylinder are matched with the reset mechanism for use, so that a rock-soil sample obtained in the soil sampling cylinder can be quickly discharged, meanwhile, the soil sampling cylinder does not need to be manually knocked or disassembled, the unloading convenience of the sampler is improved, the labor intensity of an operator is reduced, and the subsequent soil sampling efficiency is improved.

The invention relates to an excavating drilling machine comprising a base, an upper lathe, a mast, a drill rod and a drill head, wherein the upper lathe is provided with a hydraulic system and an electronic control system; and the drill head comprises a straight hole drill head and a bottom-expanding drill head, wherein the straight hole drill head and the bottom-expanding drill head are respectively arranged on the drill rod in an alternating way. The excavating drilling machine can simultaneously realize the straight hole drilling operation and the bottom-expanding bottom-expanded operation, that is to say, can implement the diameter-expanding excavation on the lower part of a foundation after a straight hole is drilled to a certain depth and automatically fetch the soil; and in addition, the invention can sufficiently meet the requirements for mechanized construction of the excavating foundation of an electric transmission line.

The invention discloses an efficient soil sampler which comprises a bulldozing sliding block, a cutting ring, a hollow connecting rod, a pedal assembly I, a pedal assembly II, a push rod, a bulldozinghandle and a soil pressing handle; the bulldozing sliding block is connected with the push rod through threads, the push rod is welded to the bulldozing handle through limiting blocks and pedal innerholes, the limiting blocks are welded to the hollow connecting rod, and pedals are mounted on the limiting shafts via limiting holes; the cutting ring is connected to the hollow connecting rod through threads, and the hollow connecting rod is welded to the soil pressing handle. According to the efficient soil sampler, soil in different depths can be taken out by means of the pedals in different positions, the sampling efficiency for soil relatively deep in the field can be improved substantially, an extra pedal is not needed, the pedals can be rotated to the vertical direction after soil sampling and the sampler is characterized by being portable and efficient.

The invention discloses a telescopic drill bit for collecting columnar soil samples and a soil collection method. Columnar soil sample collection can be realized, automatic blocking of the blocking piece can be realized and soil drop can be reduced. The telescopic drill bit comprises a hollow columnar shell with an opening in the bottom, blocking pieces for preventing soil from falling out is arranged in the shell, and the blocking pieces are rotationally arranged in the shell; shell is of a telescopic structure and comprises a fixed shell and a movable shell arranged in the fixed shell in a sleeved mode. The movable shell and the fixed shell are relatively telescopically connected; a plurality of blocking pieces are uniformly and circumferentially arranged along the side wall of the shell; one end of the blocking pieces is rotationally arranged on the side wall of the shell and rotates under the telescopic effect of the movable shell so that the other end of the blocking pieces is enabled to block in the middle of the shell; the soil collection method comprises the steps that soil enters the shell along the opening in the bottom of the shell, the shell generates driving force during telescopic movement, the blocking piece rotates under the action of the driving force, and when the blocking piece rotates downwards to be in an open state, the soil is blocked in the shell.

The invention relates to an outward turning piece type soil sampling device. The outward turning piece type soil sampling device comprises a soil sampling sleeve installed in the center of a soil sampling frame, the upper end of the soil sampling sleeve is provided with a soil sampling handle, and the soil sampling sleeve is of a multi-segment structure and comprises an upper pressing segment, a connecting segment, a middle turning piece segment and a lower pressing segment; the upper pressing segment is fixedly connected with the soil sampling handle, the connecting segment and the upper pressing segment are spirally connected, the lower end of the connecting segment is provided with a fixing ring, the middle turning piece segment comprises multiple turning pieces, the upper ends of the turning pieces are arranged on the fixing ring in a sleeving mode, and after the turning pieces form a barrel in an enclosing mode, the lower ends of the turning pieces are spirally connected with the lower pressing segment; the soil sampling handle comprises a cross-shaped main frame and a ring seat arranged in the center of the cross-shaped main frame, a hand lever with an outer thread is movably installed in the ring seat, and the upper end of the hand lever is provided with a handle; the soil sampling frame comprises multiple soil sampling stand bars which are distributed in a central symmetry mode and supporting transverse bars which are installed at the top ends of the soil sampling stand bars and extend to the center of the soil sampling frame, the inner ends of the support transverse bars are jointly and fixedly connected with a spiral sleeve, and the spiral sleeve is matched with the hand lever to form a lead screw assembly.

The invention provides an open caisson underwater efficient soil taking platform device used under complicated geological conditions. Drilling machine devices and mud suction pipes are arranged on a waterproof sealed platform in a staggered manner. Drill bits of the drilling machine devices extend out of the bottom of the waterproof sealed platform. The tips of the mud suction pipes extend out ofthe bottom of the waterproof sealed platform. Rotary spray nozzles are further arranged at the bottom of the waterproof sealed platform and are connected with high-pressure water pipes. Due to the adoption of the combination of the manner of conducting jetting through the multiple high-pressure water pipes and the manner of arranging the multiple mud suction pipes and the multiple drilling machinedevices in the staggered manner, complicated soil layers are systematically broken, the mud suction operation is then conducted after the complicated soil layers are broken, and the soil taking efficiency is substantially improved. By means of a high-pressure water jetting system, the breaking efficiency of soil bodies at the interval positions of the drilling machine devices can be ensured, thedrill bits can also be flushed in real time, it is avoided that clay hardens on the drill bits, and therefore the soil taking working face is greatly expanded and the soil taking efficiency is improved. If the open caisson underwater efficient soil taking platform device meets clay layers, by regulating the water jetting pressure and the rotating speed of a stepless speed regulator, normal soil taking of the soil breaking working face can be ensured.

The invention relates to a dewatering earth-taking construction method for a foundation pit, in particular to a dewatering earth-taking construction method for a foundation pit on water, which is characterized in that the foundation pit is divided into n layers from top down for dewatering earth-taking construction in sequence, a steel bracing is constructed on each layer, and finally excavation is carried out till the bottom of the foundation pit; wet earth-taking method is adopted for earth taking from the first layer to the n-1 layer, or concretely speaking, a sludge pump, a keg float and ahigh pressure water gun form a water and sludge suction group; the high pressure water gun jets high pressure water flow to earth to make the earth become sludge which is sucked by the sludge pump, discharged into a sludge barge by an outflow pipe and delivered to an appointed area to be unloaded, and the dewatering and sludge suction are carried out at the same time; dry earth-taking method is adopted on the n layer.

The invention relates to a soil sampler. The soil sample comprises a soil sampling pipe which is provided with a soil sampling chamber, wherein ventilating holes which communicates with the oil sampling chamber are distributed in the wall of the soil sampling pipe; a communicating chamber which communicates with the soil sampling chamber is arranged in the upper part of the soil sampling pipe; hanging holes which communicate with the communicating chamber are formed in the wall of the soil sampling pipe; a cushion is arranged in the soil sampling chamber. The soil sampler further comprises a connecting rod and an electric pike; the lower part of the connecting rod can pass through the communicating chamber; a retaining shoulder for limiting and applying force to the soil sampling pipe is arranged at the lower part of the connecting rod; a locking mechanism which is in locking connection with the upper end of the connecting rod is arranged at the lower end of the electric pike. With the adoption of the soil sampler, the completeness of a soil sample can be effectively improved, and the soil sampling efficiency can be greatly improved; the soil sampler is convenient to operate and carry; the soil sampler is obviously superior to a traditional mode and method.

The invention discloses a roadbed compactness detection device for road engineering detection, and relates to the technical field of road engineering. The roadbed compactness detection device for road engineering detection comprises a drying box, an opening is formed in the top of the drying box, a discharging opening is formed in the bottom of the drying box, a fixing shell is arranged at the top of the drying box, a machine box is arranged in the fixing shell, and a funnel frame is fixedly installed on the inner wall of the drying box. Through cooperative use of convex rods, a rotating block, a second motor, a connecting rod, a lifting rod, a knocking rod, a spring and a transmission block, soil in a cutting ring can be hammered by the bottom end of the knocking rod, the complexity of manual soil sampling is reduced, the soil sampling efficiency is improved, and through cooperative use of positioning blocks, guide rods, second threaded rods and connecting blocks, the machine box can be driven to ascend and descend, so that the knocking rod in the machine box can move downwards, the bottom of the knocking rod can make contact with soil, and the soil in the cutting ring can be conveniently taken out.

The invention relates to a portable motor soil sampler which is characterized by comprising a motor, a hand wheel, a rotating shaft, a soil sampling tube, buckles, a clamp ring and a soil sampling sleeve, wherein the soil sampling tube is mounted in the soil sampling sleeve in a penetrated manner; a connecting part is connected and mounted by the buckles and the clamp ring; a soil sampling gap isformed between the soil sampling tube and the soil sampling sleeve; a plurality of bent teeth bent in a single periphery direction are uniformly arranged and mounted in the soil sampling gap and on the outer side of the soil sampling tube; the rotating shaft is connected into the soil sampling tube via a connecting rod; one end of the rotating shaft is connected with a power output shaft of the motor; and the hand wheel is further arranged at a connecting part. The portable motor soil sampler has the advantages that the portable motor soil sampler is simple in structure, reasonable in design,small in occupied space, strong in power and convenient to carry, effectively avoids falling-off of a soil sample, can achieve soil sampling at a time, avoids time consuming and labor consuming due tothe soil sampling for many times and improves soil sampling efficiency.