144 results about "Residual soils" patented technology

The invention discloses a soil sampling device for land resource planning and a sampling method thereof, and belongs to the technical field of soil sampling, the soil sampling device comprises a supporting seat fixedly supported above the ground at a sampling position, a stand column is fixedly mounted on the upper surface of the supporting seat, and a top seat is fixedly mounted at the top of the stand column; an adjusting motor is fixedly mounted at the top of the top seat, meanwhile, a threaded rod is fixedly mounted at the output end of the adjusting motor, a movable seat is arranged on the outer side of the stand column, and a sampling barrel is rotationally mounted in the middle of the movable seat. The cutting base is fixedly installed at the lower end of the sampling barrel, the drilling efficiency of the sampling barrel is improved, and a cutting assembly is arranged on the inner side of the cutting base. According to the soil sampling device for land resource planning and the sampling method of the soil sampling device, residual soil dust in previous sampling can be automatically cleaned before sampling, the lower end of sample soil can be segmented, automatic clamping and supporting are conducted, and the sample soil can be completely taken out conveniently.

The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a subsurface erosion particle system mechanical property testing method based on physical state reproduction and dynamic expansion, which comprises the following steps: S1, subsurface erosion test and fine particle collection: filling a sample soil body by using a subsurface erosion tester, and carrying out a seepage action test; s2, lossless sampling and CT image acquisition: carrying out lossless sampling on the residual soil sample after the subsurface erosion test, and acquiring a CT scanning image of a particle system of the residual soil sample; s3, image processing and structural feature extraction: processing the CT scanning image, and extracting structural features; s4, establishing a numerical model: establishing the numerical model to simulate the mechanical properties of the soil body; and S5, three-axis simulation and mechanical property calculation: carrying out a three-axis simulation experiment on the numerical model. According to the invention, high-precision modeling and intelligent analysis of the microstructure and mechanical behavior of the subsurface erosion soil body are realized, and the test efficiency and the reliability of engineering application are remarkably improved.

The invention provides a granite residual soil side slope intelligent anchoring system and an instability early warning method, and the system comprises a multi-source sensing monitoring module which is used for collecting side slope rock-soil body permeability parameters, anchoring structure states and environment data in real time; the dynamic osmotic analysis module is used for dynamically correcting the osmotic coefficient and dividing a saturation region according to the real-time osmotic parameters in combination with the disintegration characteristics of the granite residual soil; the intelligent anchoring regulation and control module is used for regulating the prestress of the anchor rod and the working state of the drainage hole in real time based on the permeation saturation area distribution and the anchor rod state data; and the CNN instability early warning module is used for fusing the multi-source sensing data through a convolutional neural network, outputting a slope instability index and triggering early warning. The technical problems that an existing side slope anchoring system cannot accurately capture the penetration sudden change and anchoring degradation coupling risk of granite residual soil under heavy rainfall, the early warning precision is low, and response lags are solved.

The utility model relates to the field of fresh sweet-waxy corn processing, in particular to a cleaning device for fresh sweet-waxy corn processing. The cleaning device for processing the fresh sweet waxy corn comprises a protective shell, a supporting frame, a feeding frame, a transmission machine I, a transmission machine II, a water outlet pipe I and a high-pressure spray head I. The supporting frame is fixedly connected to the lower portion of the protective shell, and the feeding frame is installed on the right side of the upper portion of the protective shell. A water outlet pipe I is connected to the right side of the upper portion in the protective shell, and a plurality of high-pressure spray heads I are connected to the upper portion of the water outlet pipe I. By arranging the cleaning brushes, the motor and the synchronous belt, the motor operates to drive the synchronous belt to rotate, and the synchronous belt drives the multiple cleaning brushes to rotate and brush into gaps among corn kernels to brush away soil in the gaps, so that the effect of cleaning the gaps is achieved, and the problem that soil is left in the gaps among the corn kernels is effectively solved.

The invention discloses agricultural film mulching equipment for seedling cultivation based on a bio-based material, and relates to the technical field of plant protection. Comprising a pulling block, a positioning shaft is fixedly connected to the inner wall of the pulling block, wheels are rotationally connected to the two ends of the positioning shaft, and the soil burying device is further included, and the outer wall of the soil burying device is rotationally connected with the outer wall of the pulling block; the outer wall of the rolling device is fixedly connected with the outer wall of the soil burying device, the perforating device is arranged in the rolling device, a telescopic device is arranged, and a second damping rod and a reset spring are used, so that the action of a drilling pipe during perforating is stable, the perforating device enables the film mulching equipment to perforate at a fixed frequency, and the planting efficiency is improved; and a magnetic sliding block is attracted by a magnetic balance weight plate through the cleaning device, a pushing block is driven to clean residual soil in the drilling pipe, the drilling pipe is guaranteed to be unblocked by means of inertia, centrifugal force and gravity, and it is guaranteed that follow-up drilling work is conducted smoothly.

The utility model discloses a collector for crop pesticide residue in-situ soil sampling, which comprises a collecting mechanism and an operating mechanism assembled at the top of the collecting mechanism, the collecting mechanism comprises a soil sampling drill bit, the bottom of the soil sampling drill bit is provided with a knife edge, the back of the soil sampling drill bit is provided with a sampling groove, and the sampling groove is communicated with the operating mechanism. The utility model relates to the technical field of pesticide residue soil collection. According to the collector for crop pesticide residue in-situ soil sampling, through cooperation of the soil sampling drill bit and the operating rod, the soil sampling drill bit can sample soil with crop pesticide residues, and the operating rod is convenient for a worker to operate when the driving drill bit is used; by means of the sampling groove and the sampling plate, layered collection can be conducted on sampled soil in the soil sampling drill bit, so that the accuracy of layered collection of the soil by workers is improved, the sampling plate can close the sampling groove when the soil sampling drill bit is inserted into the soil, and the stability of the soil sampling drill bit during soil sampling is ensured.

The invention discloses a small watershed nitrogen and phosphorus load accounting method based on key process parameter calibration, and the method comprises the steps: obtaining the basic geographic hydrological data of a target small watershed, the data comprising the areas of different land utilization types in the watershed, the flow length of a water collection region river channel, and the average flow velocity; based on the hydrology and water quality monitoring data of the long-time sequence of the catchment area, adopting a Bayesian inversion model to quantitatively identify the nitrogen and phosphorus output coefficient of each land utilization type; calculating a soil nitrogen and phosphorus output load in the catchment area, determining a natural reduction coefficient of a nitrogen and phosphorus first-order river, and calculating transport time of nitrogen and phosphorus from a starting point of a river channel of the catchment area to a water outlet and transport time of soil output nitrogen and phosphorus from a tributary estuary to the water outlet of the catchment area; and calculating the water collection area outlet nitrogen and phosphorus load. According to the method, the overestimation error caused by the fact that a production and pollution discharge coefficient method is adopted in a traditional method is remarkably reduced through fusion of'pollution source nitrogen and phosphorus entering the river-remaining soil output-along-the-way natural reduction 'ternary accounting, the accuracy of load accounting is improved, the feasibility and advantages of the technical scheme are verified, and the method is particularly suitable for small watersheds with deficient basic data.

The utility model discloses a cleaning device for traditional Chinese medicinal materials. Comprising a main support, a horizontal cleaning cylinder capable of rotating around the axis of the cleaning cylinder, a spiral pushing piece, a driving mechanism assembled on the main support and used for driving the cleaning cylinder to rotate, and a water spraying pipe assembled on the main support through a second mounting mechanism and penetrating through the cleaning cylinder in the same length direction. A plurality of drainage holes are formed in the side wall of the cleaning barrel in a penetrating mode, the cleaning barrel comprises a feeding pipe, a soaking pipe connected with the feeding pipe, and a flushing pipe connected with the end, away from the feeding pipe, of the soaking pipe, and the diameter of the flushing pipe is smaller than the diameter of the soaking pipe, and a water storage part arranged on the lower portion of the soaking pipe in a sleeving mode is fixedly installed on the main support; a sewage discharging mechanism is assembled on the water storage part, medicinal materials can be soaked in water when entering the soaking pipe, soil on the surfaces of the medicinal materials can be soaked and softened, part of soil attached to the upper portions of the medicinal materials can also be washed away, the residual soil can be washed away after the medicinal materials enter the washing pipe, and the working efficiency and the washing degree are improved.

The invention discloses a safety construction method for side slope expanding excavation of fully-weathered granite residual soil, and provides an excavation process optimization method for a first-grade side slope close to an operation road on the basis of finite element simulation of the whole side slope expanding excavation construction process of the fully-weathered granite residual soil. The excavation safety construction method comprises the following steps that firstly, a temporary support is arranged, then a primary excavation procedure is designed, multiple sets of excavation parameter combinations are designed, then the slope state after secondary slope excavation is completed serves as the initial state, a finite element model of slope excavation is established for each scheme combination, excavation parameters are input, and a slope excavation result is obtained; and calculating the safety coefficient and the maximum displacement of the side slope after the side slope expanding excavation is completed under the excavation scheme, performing optimization according to the calculation result and the space requirement of the construction operation machinery, and finally determining the optimized expanding excavation parameters and the safe excavation process. According to the technical scheme, an optimized scheme can be provided for studying safe excavation of the fully-weathered granite residual soil slope.

The invention belongs to the technical field of soil sampling, and particularly relates to soil sampling equipment for geological exploration and a method thereof.The soil sampling equipment comprises a suspension component, and the suspension component is fixed to the dotted ground to stabilize the whole device; the reamer is arranged at the axis of the suspension component and is used for punching the ground and sampling deep soil; the reamer comprises an inverted pump body, and a long through rod is installed at the bottom of an exhaust port of the inverted pump body. According to the invention, a part of gas is shunted to blow away soil on the upper surfaces of the outer grinding cylinders and the axis turntable in an inverted pump body pressurizing manner, and the diameter of a hole actually turned out is greater than that of the bottom end of the reamer due to the expansion effect of the outer grinding cylinders, so that when the outer grinding cylinders are combined, the soil in the hole cannot be clamped in the outer grinding cylinders, and the quality of the hole is improved. Further, soil is effectively prevented from remaining in the outer grinding cylinder, and the problem that subsequent sampling data is polluted by the remaining soil is prevented.

The utility model discloses a soil layer sampling detection device, which belongs to the field of soil layer detection and comprises a central plate, support frames are fixedly connected to two sides of the central plate, a protective shell is fixedly connected to the side surface of one support frame, and a double-shaft motor is fixedly connected to the top of the other support frame. Through a double-shaft motor, a first driving mechanism, a second driving mechanism and a cleaning assembly, the double-shaft motor drives a driving rod and a lead screw to rotate, the lead screw rotates to drive a lifting frame and a sampling pipe to move upwards, then when the lifting frame moves upwards, a toothed rod is driven to move upwards, a bent toothed rod is driven to move downwards through a gear, and the bent toothed rod moves downwards to drive a push rod to move downwards; meanwhile, the driving rod rotates to drive the driving barrel to rotate, the driving barrel rotates to drive the downward-moving push rod to move downwards, then the push rod moves downwards to drive the push plate and the cleaning brush sleeve to enter the sampling pipe, the cleaning brush sleeve is rotated to clean the inner wall of the sampling pipe, and therefore it is avoided that soil left on the inner wall of the sampling pipe influences the accuracy of sampling detection next time.

The present invention relates to a special sampling device for soil in a peat swamp wetland, comprising a base plate, a slide plate symmetrically arranged on the bottom of the base plate, an arc-shaped pressure plate arranged on the rear side of the bottom of the base plate through a bracket, a push handle arranged on the front side of the top of the base plate, a drilling mechanism arranged on a fixed plate and the center of the base plate, a sampling mechanism arranged in the drilling mechanism, and a cleaning mechanism arranged in the sampling mechanism; the present invention can solve the following existing problems: the present invention separates and collects soil and moisture in a storage cylinder and a storage cover through the cooperation of a moving tube and a hollow round cake, and then cleans the storage cylinder and the storage cover with the collected water after the sampling is completed, thereby preventing residual soil from contaminating the sample; the present invention realizes sampling of soil at different depths in a peat swamp through the cooperation of an arc groove and an arc-shaped sampling plate, thereby reducing the labor intensity of staff; and also prevents soil from entering the cylinder and contaminating the inner wall of the cylinder through the cooperation of a strip block and a mud guard.

The utility model discloses a mountain area highway road shoulder earth accumulation removes device belongs to highway maintenance equipment technical field. Including the car body, the car body side fixedly be provided with two support plate, and the support plate is rotationally connected with the rotating frame on, and the rotating frame verticality is established, and the scraper fixed connection in the rotating frame below can remove the residual soil of the cleaning push plate working surface, and the spray head can be washed to the cleaning push plate working surface and is located on the support, and the spray head is towards horizontal direction, and the rotating frame that can drive the spray head to rotate to vertical downward direction is connected with the support plate through the rotating mechanism. The present application is through setting up the scraper and the lifting plate, can scrape the mud that adheres on the cleaning push plate quickly. Without manual intervention, the continuity and high efficiency of cleaning operation are guaranteed. At the same time, the rotating mechanism can drive the spray head to rotate, not only can reduce dust in the earth accumulation removal process, still can wash the cleaning push plate, one can achieve two effects.

The invention discloses a large-scale underground space excavation equipment and a construction method thereof, comprising: a shield machine, a cutter head, a rear compartment partition plate, a propulsion device, a surplus soil recovery hole, a surplus soil pumping device, and a grouting hole cavity, wherein the grouting reinforcement device comprises a grouting pipe slidably arranged in the grouting hole cavity, a plurality of discharge ports are arranged on the outer side of the grouting pipe, and an electromagnetic flipping structure is arranged at the bottom end of the grouting pipe; a direction-changing structure is arranged on the outer shell of the shield machine, the direction-changing structure comprises a rotating disk arranged on the outer shell of the shield machine, the inner side of the rotating disk is driven by a driving structure, at least two servo jack units are fixedly connected to the outer side of the rotating disk, and the servo jack units are located at the lower left corner and the upper right corner of the outer peripheral surface of the rotating disk. The invention solves the problems of low excavation construction efficiency and inability of large machinery to construct in the process of excavating large underground spaces by combining the use of a shield tunnel with a reverse construction method.

The utility model belongs to the technical field of soil sampling, and particularly relates to a soil detection sampling device which comprises a soil sampling barrel, the top end of the soil sampling cylinder is fixedly connected with a first connecting cylinder; a plurality of slag discharge ports are formed in the top end of the soil sampling cylinder; the middle part of the first connecting cylinder is fixedly connected with a treading ring; a pedal is fixedly connected to the side wall of the pedal ring; a second connecting cylinder is fixedly connected to the top end of the first connecting cylinder, and a plurality of handles are fixedly connected to the side wall of the second connecting cylinder; and the soil sampling cylinder is connected with a push block in a sliding manner. The air pump is connected with the air guide pipe to enable air to enter the cavity, soil on the inner wall of the soil sampling cylinder is dried in an accelerated mode under the action of the air outlet, then residual soil is scraped off through the scraper blade and cleaned through the residue discharging opening, and therefore the residual soil on the inner wall of the soil sampling cylinder can be cleaned away, and the problem that detection is affected by cross of soil samples can be solved.

The invention discloses a soil screening and impurity removing device for medicine mud. The soil screening and impurity removing device comprises a supporting frame, a screening part for screening soil is fixedly connected to the supporting frame, a collecting part for collecting impurities left in the screening part is arranged in the screening part, and a driving part for driving the collecting part to rotate and move is arranged on the screening part; impurities are collected during rotation through a collecting barrel and a stirring plate of the collecting part, the stirring plate turns over the impurities to enable the adhered fine soil to be separated, the impurities are screened out through a second screening hole and a third screening hole, when the collecting part moves to an AB area of the screening part along with the driving part, the impurities fall onto a flow guide plate through a large discharging hole, and therefore the impurities are removed. And residual soil particles in the impurities are further screened through fourth screening holes of the screening part, fine soil enters a discharging box to be discharged, large impurities are directionally discharged from a discharging groove along the inclined surface of a flow guide plate, accurate separation of the impurities and the soil is achieved through the collaborative design, the soil loss rate is reduced, and the impurity collecting process is simplified.

The sampling device comprises a mounting plate, a fixing frame and a mounting frame are sequentially arranged on the mounting plate from top to bottom, a sampling mechanism is arranged on the mounting frame, a sampling opening is formed in the position, opposite to the sampling mechanism, of the mounting plate, and the sampling mechanism comprises a sampling barrel and an extrusion block arranged in the sampling barrel. An extrusion assembly is arranged in the sampling barrel and drives an extrusion block to slide relative to the inner wall of the sampling barrel, so that the sample is extruded, and meanwhile, a lifting mechanism for driving the sampling mechanism to axially move is arranged at the bottom of the mounting frame. The problem that in the prior art, residual soil in a sampling barrel interferes with next soil sampling detection is solved.

A kind of foundation settlement calculation method considering construction leveling, comprising the steps of: determining the unloading amount, depth range and layer thickness of foundation pit excavation area;According to Boussinesq solution, the additional stress of the center of the jth layer soil caused by foundation pit unloading is calculated, and the self-weight stress distribution of foundation is calculated, the additional stress is obtained by MATLAB programming calculation;The total rebound amount is obtained by layer summation method;The soil particle volume of layer soil thickness is obtained based on the total rebound amount;The lower limit of soil plasticity index limit is taken as the moisture content of the rebound part of soil body, and the soil particle volume of the rebound part of soil body is obtained;The volume of the first layer of residual soil particles after construction leveling is obtained;The first layer settlement is calculated, and the total settlement after construction leveling is obtained by adding the settlement of other layers.The present application considers the construction leveling factor in foundation pit engineering to calculate the foundation settlement, deduces the pore ratio of pit bottom after construction leveling in theory, and saves a lot of time by programming calculation of additional stress, and avoids the error of manual table lookup value.

The invention relates to the technical field of soil pollution detection, in particular to soil environmental pollution detection sampling equipment which comprises a tubular protective shell and supporting legs mounted on the tubular protective shell. A mounting ring block is connected in the tubular protective shell in a sliding manner, and the tubular protective shell is connected with the plurality of first driving pieces through convex blocks; sampling interference and pollution are avoided by rotationally cutting obstructions through the conveying pipe, sealing in the soil conveying process is achieved through a corrugated pipe, a spiral sealing ring and an elastic ring, the device is prevented from being polluted, and workers do not need to make contact with samples; furthermore, after sampling, the second annular scraping block rotates along with the conveying pipe after friction is increased by means of a convex ball, the soil on the outer wall is scraped and thrown off, and after the water storage tank is matched with water conveying to wet the residual soil, the first annular scraping block scrapes and throws off for the second time, and disassembly and washing are not needed.

This utility model belongs to the field of information collection technology, and particularly relates to a soil survey sampler. The sampler includes a sampling cylinder body with a sampling shovel detachably connected to its lower end. The shovel has a trapezoidal cross-section at its end. A cleaning mechanism is movably connected to the upper end of the sampling cylinder body. The cleaning mechanism includes a rotating block, a pushing rod, a pushing ring, a rotating rod, and a cleaning ring. One end of the pushing rod is fixedly connected to the end face of the rotating block, and the other end is fixedly connected to the pushing ring. The outer diameter of the pushing ring is the same as the inner diameter of the sampling cylinder body. A rotating hole is provided on the lower end face of the pushing rod, and one end of the rotating rod is placed inside the rotating hole and engages with it. The cleaning ring is sleeved on the outer circumferential wall of the rotating rod, and the other end of the rotating rod is rotatably connected to the sampling cylinder body. A guide rod passes through the cleaning ring and is fixedly connected to the sampling cylinder body. Compared with the prior art, this utility model enables the cleaning brush bristles to thoroughly scrape away residual soil from the cylinder wall, eliminating cross-contamination of samples.

The utility model discloses a soil extraction device for improving soil quality, which belongs to the technical field of geological exploration and comprises a barrel body, a plurality of partition plates are fixedly connected in the barrel body from top to bottom, annular frames are arranged at the upper ends of the partition plates in the barrel body, and a plurality of scrapers are fixedly connected to the frames. A rotating rod is rotatably connected to the middle of the can body in a penetrating mode, a rotating telescopic mechanism is arranged at the position, located at the lower end of the partition plate, of the rotating rod and comprises an annular groove formed in the position, located under the partition plate, of the rotating rod, and a plurality of arc-shaped connecting rods are rotatably connected into the annular groove. Through the arrangement of the rotary telescopic mechanism, the adjusting ring and the scraper, soil at different depths can be extracted at the same time, the working efficiency is greatly improved, residual soil in the barrel body is effectively removed, cross contamination between the soil when the extraction device is used again is avoided, and the cleaning difficulty is reduced.

The invention relates to the technical field of land leveling engineering, in particular to a high-precision land leveling operation device based on Beidou positioning, which comprises a driving chassis, the top of the driving chassis is provided with a cockpit, and the top of the cockpit is provided with a laser radar. And cameras are installed at the positions, located on the two sides of the laser radar, of the top of the driving chassis, a Beidou satellite navigation device is installed at the top of the driving chassis, and a first mechanical arm and a second mechanical arm are installed on the outer side wall of the cockpit. The excavator bucket is responsible for excavating and transferring a large-area soil layer, the clamping jaw is responsible for accurately clamping stones and normalizing soil, and the excavator bucket and the clamping jaw cooperate with each other, so that the problem that a single operation mechanism cannot thoroughly treat terrain defects is solved, the land leveling quality is greatly improved, a special collection hopper is arranged, centralized collection and transferring of stones and muck are achieved, secondary scattering is avoided, and the subsequent cleaning cost is reduced. And the working environment is optimized.

The invention relates to a residual soil slope instability intelligent identification method and system fused with multi-source monitoring data. The method comprises the steps of generating a plurality of historical health multi-source spatial-temporal feature tensors according to historical original monitoring data to obtain a training sample set, performing unsupervised training on a deep convolution auto-encoder model to obtain a health reference reconstructor, and calculating health error distribution reference parameters; generating a real-time multi-source spatial-temporal feature tensor according to the real-time original monitoring data, and calculating a real-time anomaly score in combination with a health reference reconstructor; and comparing the score with a dynamic early warning threshold, and when the judgment result is abnormal, generating structured early warning information based on the real-time multi-source spatial-temporal feature tensor and the reconstruction tensor. According to the method, multi-source monitoring data are fused, unsupervised learning is carried out by using a deep convolution auto-encoder model, and the like, so that the accuracy and reliability of instable judgment of the residual soil slope are improved, and the real-time performance of slope stability monitoring and the dynamic adaptability of early warning are enhanced.

The utility model relates to the field of engineering geological survey, and discloses a water pressure test device for engineering geological survey, which comprises a pressure pump, the top of the pressure pump is fixedly connected with a fixed column I, the top of the fixed column I is provided with a sample cylinder, one side wall of the fixed column is fixedly connected with a rotary table, the inside of the rotary table is rotatably connected with a screw rod, and the screw rod is fixedly connected with the fixed column I; the outer wall of the screw rod is in threaded connection with a push column, the push column is slidably connected into the first fixing column, a sliding column is slidably connected into the first fixing column, a second fixing column is fixedly connected to the top of the first fixing column, a first spring is arranged between the second fixing column and the sliding column, and a plurality of clamping plates are rotatably connected into the second fixing column. According to the device disclosed by the utility model, through the matching of structures such as the rotary table, the push column and the clamping plate, the sample cylinder can be quickly disassembled and assembled and can be cleaned and maintained, so that the influence of impurities such as internal residual soil on the accuracy of a test result is avoided.

The utility model discloses a rock-soil high slope investigation device, which relates to the technical field of rock-soil investigation and comprises a sampling pipe, a rotating ring, a drill bit and a cleaning component, the rotating ring is rotatably connected to the end face of the sampling pipe, and the drill bit and the cleaning component are respectively connected to the rotating ring. The cleaning assembly comprises a mounting ring connected to the rotating ring and two cleaning plates fixedly connected to the mounting ring, the two cleaning plates are arranged in an arc shape and attached to the inner walls of the two sides of the sampling pipe respectively, the drill bit penetrates through the opening, and the upper end of the drill bit is fixedly connected to the lower end face of the mounting ring; the drill bit, the mounting ring and the rotating ring are all communicated with the inner cavity of the sampling pipe. The device has the effect of conveniently cleaning the residual soil sample.

The invention relates to the field of survey sampling, in particular to a soil body sampling device and method for penetrating through a tunnel in a broken fault zone, the device comprises a supporting framework, a mounting base, a sampling component, a first driving component and a second driving component, the sampling component comprises a sampling pipe and a mandrel, and a spiral blade is arranged on the outer wall of the mandrel; the sampling pipe sleeves the outer side of the core shaft, the sampling pipe and the core shaft are rotationally connected to the mounting seat, the first driving part is used for driving the sampling pipe to move along the height direction of the supporting framework, the movement of the sampling pipe drives the mounting seat to slide along the slide way so as to drive the core shaft to move, and the second driving part can drive the core shaft to rotate. And the mandrel rotates to discharge the sample. The device is reasonable in structural design and simple and convenient to sample, the risk that soil falls off or is disturbed in the lifting and transporting process can be remarkably reduced in the sampling process, the collected soil sample can be easily and completely taken out, and meanwhile, redundant or residual soil can be efficiently discharged.

The present invention discloses a shallow anti-scour and deep anti-slip support device for a granite residual soil slope, comprising a lattice beam reinforcement structure provided on the slope surface, a jet-jet anchor cable anchored within the slope and fixedly connected to the lattice beam reinforcement structure, FRP bars sleeved within the jet-jet anchor cable and fixedly connected to the lattice beam reinforcement structure, and a MICP bacterial solution and nutrient solution injected into the granite residual soil of the slope via the jet-jet anchor cable. The present invention also discloses a support method. The present invention utilizes a jet-jet anchor cable to perform MICP treatment on the granite residual soil slope, greatly facilitating the uniform infiltration of the MICP bacterial solution and nutrient solution into the surrounding granite residual soil, thereby improving the strength of the surrounding soil. Furthermore, by sleeve-jetting the FRP bars within the jet-jet anchor cable and anchoring the two together, a high-resistance and long-life anchor cable is formed, exhibiting improved anchoring and anti-slip performance, thereby increasing the anchoring force required for deep sliding of the anchor cable.

The invention relates to the field of energy storage, in particular to a self-adaptive dynamic control ice layer generation method and device. The method comprises the following steps: rapid initial cooling: rapidly establishing a temperature gradient to enable a freezing front to reach a target depth; stable growth cooling: slowing down the cooling rate, maintaining the temperature near the target depth to be slightly lower than the freezing point, and stably growing the ice lens to form a sealing layer with expected thickness and stability; and final-stage cooling: increasing the cooling rate, freezing the residual soil layer, and maintaining the stability of the ice lens at the same time. The invention provides a three-stage cooling frame comprising rapid initial cooling, stable growth cooling and final stage cooling. By dynamically adjusting the cooling rate, it is ensured that the position of the freezing front and the thickness of the ice lens reach expected targets, and meanwhile the structural stability of the ice lens is maintained.