11 results about "Soil movement" patented technology

The invention relates to the technical field of data processing, in particular to a soil compaction effect numerical simulation method and system in the pile foundation static pressure process, and the method comprises the steps: obtaining soil compaction test data in the pile foundation static pressure test process; according to the soil squeezing test data, the distances from the different areas to the pile body are determined, analysis step lengths are matched for the different areas according to the distances, soft soil movement rules of the different areas are analyzed according to the analysis step lengths, and soft soil movement coefficients are obtained; according to the soil squeezing test data and the soft soil motion coefficient, the influence of falling of clay attached to the pile body on friction force in the downward pressing process of the pile body is analyzed, and the falling coefficient of the clay attached to the pile body is obtained; according to the motion coefficient of the soft soil and the falling coefficient of the clay attached to the pile body, the preset pile end pressure is corrected, and the corrected pile end pressure is obtained; and according to the corrected pile end pressure, the soil squeezing effect numerical value in the pile foundation static pressure process is simulated, so that the accuracy of soil squeezing effect numerical value simulation in the pile foundation static pressure process is improved, and waste of calculation efficiency is avoided.

This invention relates to the field of soil sampling device technology, and more particularly to a mountable UAV soil sampling device for land reclamation. The device comprises an upper shell, a lower shell, a drilling assembly, and an air pump assembly. The upper shell is fixedly mounted on the top of the lower shell via a mounting buckle, which is then bolted to both the upper and lower shells. A bracket is fixedly mounted on the bottom of the lower shell. This invention, by installing an outer cylinder outside the guide cylinder, creates a double-layered cylindrical guiding structure. This structure ensures the stability of the drill bit sampling without affecting soil sample transmission. Furthermore, in conjunction with the air pump assembly, high-pressure airflow is used to backwash and clean the soil movement path of the drill bit, guide cylinder, and outer cylinder. This allows for the cleaning of the soil movement path during sampling point changes, significantly reducing the risk of cross-contamination between soil samples from different sampling points.

The utility model relates to the technical field of desertification control equipment, and discloses a folding straw square automatic planting device which comprises a material box assembly, a folding guide planting assembly, a ditching assembly, a soil covering assembly, a movement assembly and a machine body. The material box assembly adopts a quick-release design and supports quick replacement; the folding guide planting assembly realizes accurate folding and accurate furrow entering of wheat straws through a V-shaped mold and a brush conveying belt; the ditching assembly is provided with a height-adjustable moldboard plow; the soil covering assembly compacts soil through a press wheel; and the movement assembly realizes full-process automation through a PLC (Programmable Logic Controller). The problems that traditional manual laying is low in efficiency and the grass grid structure is loose are solved, the wind prevention and sand fixation effects are remarkably improved, and the device is suitable for desertification control.

The present invention relates to a soil-working machine having rotary soil-working units. Particularly advantageous are the protection of the soil structure by way of the smallest possible soil movement, the low energy consumption compared to alternative soil loosening means, the good road transport possibilities, and a high combinability of the machine. Particularly advantageous is the soil loosening by means of rotary soil-working units, in which at least one circular-path-guiding element guides working elements on a circular path, where said working elements are connected in a rotatably mounted manner to the circular-path-guiding element. The pivot angle plays a very important role here. If the pivot angle is too small, the soil does not fall back sufficiently into its original position when the working element is lifted out. If the pivot angle is too large, the working elements can, in unfavourable situations, rotate in such a way that they do not reach their target working depth. This problem is solved in the context of the present invention in that the angle of the stop elements, connected to the working elements, to one another and the positions of the stop elements fixedly connected to the circular-path-guiding element are designed such that the rotational movement of the working elements in the circumferential bearing point is limited to a pivot angle, in particular preferably 94°.

The utility model discloses a rice breeding spreads the device for helping, include : mobile mechanism, including the vehicle body, the mobile wheel of mobile mechanism is set up below the vehicle body through the drive shaft rotation, and the seed -drill mechanism is connected in the support table top through the fixed subassembly of the lower hopper. The utility model conveying cylinder drives the cam circumferential rotation, makes the sleeve under the guidance of connecting rod and the sliding slot to the position of soil movement inserts, and the conical seeding plate of sleeve bottom end swing -joint is under the cooperation connection of the curved rod and opens the soil, and also seeds are seeded in the soil, when the cam rises to the high place, the sleeve rises to the upper, and the third rotating seat of curved rod bottom end connection will slide to the bottom of arc seeding plate, at this moment, two arc seeding plate closes, so can gather the seed falling again, and wait the reciprocating motion of above -mentioned steps, thereby effectively solved the traditional manual seeding low efficiency, the problem of easy mistake.

The utility model discloses a hole-pressing and soil-covering device convenient for sowing small seeds of flowers, which relates to the technical field of agricultural machinery and comprises a hole-pressing mechanism, a soil-covering mechanism assembled on one side of the hole-pressing mechanism and a sowing mechanism assembled inside the soil-covering mechanism, the hole pressing mechanism comprises a supporting frame, a solid roller is rotatably mounted in the supporting frame, a mounting groove is formed in the periphery of the solid roller, a mounting strip is slidably mounted in the mounting groove, and a hole pressing pile is fixedly mounted on the surface of the mounting strip; a locking block corresponding to the mounting groove is mounted at the front end of the solid roller in a sliding manner; according to the hole pressing and soil covering device facilitating sowing of the small flower seeds, by arranging the hole pressing mechanism, the distance between holes pressed by a hole pressing pile can be conveniently changed, flower seeds are sown into the holes, and the situation that soil moves to drive the seeds to move in the subsequent soil covering process can be avoided.

The invention discloses a creep-controllable stress release air bag for a stress release hole and a construction method thereof, the creep-controllable stress release air bag comprises an air bag body, the air bag body is cylindrical, and the air bag body is provided with an electric air inlet valve and an electric pressure release valve; the counterweight head is mounted at the lower end of the air bag body; the pressure sensor is used for collecting real-time pressure in the air bag body and is mounted on the air bag body; the controller is in signal connection with the pressure sensor, the electric air inlet valve and the electric pressure release valve, and the controller effectively controls the displacement speed of the soil body by controlling the electric air inlet valve and / or the electric pressure release valve based on a preset pressure threshold value range and the real-time pressure. And the stress generated by soil body movement caused by pile foundation construction is slowly released. According to the invention, the problem of weak lateral pressure resistance of a conventional stress release in-hole support scheme is solved.

The utility model discloses a kind of cross-contamination prevention staggered layer soil sampling devices, including several sampling tubes, several sampling tubes combination form sampling barrel, connecting structure for being connected with adjacent sampling tube is provided on each sampling tube, the bottom of the sampling tube at the lowermost of sampling tube is connected with drill bit, the top of the sampling tube at the uppermost of sampling tube is detachably connected with hand wheel, each sampling tube outer peripheral wall is protruding with the flow guide boss for when sampling tube rotates, pushes the periphery soil movement, each sampling tube is hollow and is provided with cavity, flow guide boss side wall is contact surface, contact surface is provided with the inlet slot for with cavity communication to be filled with soil cavity, sampling barrel is detachably connected with the sealing plate for before sampling barrel is placed into external soil, several inlet slots are closed, the utility model solves the problem that traditional soil sampling device is difficult to portable carry, lack staggered layer soil synchronous collection structure and when staggered layer soil sampling, easily lead to soil sample cross-contamination.

The present application relates to the technical field of data processing, in particular to a method and system for numerical simulation of soil squeezing effect in pile static pressing process, the method comprising: obtaining soil squeezing test data in pile static pressing process; determining distances from different regions to the pile according to the soil squeezing test data, and matching analysis steps for different regions according to the distances, so as to analyze soft soil movement law of different regions according to the analysis steps, and obtain soft soil movement coefficients; analyzing the influence of clay shedding attached to the pile on friction in the process of pile pressing according to the soil squeezing test data and the soft soil movement coefficients, and obtaining clay shedding coefficients of the clay attached to the pile; correcting the preset pile end pressure according to the soft soil movement coefficients and the clay shedding coefficients of the clay attached to the pile, and obtaining corrected pile end pressure; and simulating the numerical value of soil squeezing effect in pile static pressing process according to the corrected pile end pressure, so as to improve the accuracy of numerical simulation of soil squeezing effect in pile static pressing process and avoid waste of calculation efficiency.

This article is a rotary-embedded pile in which a pair of spiral projections are provided on the circumferential surface of a rod-shaped pile body in an opposing and twisted state in the same direction, and a stepped projection is provided parallel to the inclined upper surface of the spiral projection in the direction of the extension of the spiral. When the upper end of the pile body is driven into the ground, this article is embedded in the ground while rotating around the axis of the pile body, and is used to hold down and fix covering materials such as sheets, nets, and mats laid on the ground surface to the ground, or to fix outdoor installations such as tents to the ground. As shown in the "First and Second Reference Perspective Views Showing the Stepped Projection" and the "Reference Diagram Showing Soil Movement in the Stepped Projection," the stepped projection has a nearly horizontal upper surface connected to the upper end of the inclined surface of the projection which is inclined with respect to the inclined upper surface. As the article rotates around its axis, the soil rises relative to the inclined surface of the protrusion, as indicated by the arrows in the "Reference Diagram Showing Soil Movement on the Step-Shaped Protrusion," and rests on the horizontal upper surface of the protrusion. The reverse rotation of the pile body due to the pull-out force acting on the pile body is effectively prevented by the resistance of the soil present on the horizontal upper surface of each protrusion against the lifting of the pile body. The length of the pile body is 150 to 500 mm.

This article is a rotary-embedded pile in which a pair of spiral projections are provided on the circumferential surface of a rod-shaped pile body in an opposing and twisted state in the same direction, and a stepped projection is provided parallel to the inclined upper surface of the spiral projection in the direction of the extension of the spiral. When the upper end of the pile body is driven into the ground, this article is embedded in the ground while rotating around the axis of the pile body, and is used to hold down covering materials such as sheets, nets, and mats laid on the ground surface and fix them to the ground, or to fix outdoor installations such as tents to the ground. As shown in the "First, Second, and Third Reference Perspective Views Showing the Stepped Projection" and the "Reference Diagram Showing Soil Movement in the Stepped Projection," the stepped projection has a nearly horizontal upper surface connected to the upper end of the inclined surface of the projection which is inclined with respect to the inclined upper surface. As the article rotates around its axis, the soil rises relative to the inclined surface of the protrusion, as indicated by the arrows in the "Reference Diagram Showing Soil Movement on the Step-Shaped Protrusion," and rests on the horizontal upper surface of the protrusion. The reverse rotation of the pile body due to the pull-out force acting on the pile body is effectively prevented by the resistance of the soil present on the horizontal upper surface of each protrusion against the lifting of the pile body. The length of the pile body is 150 to 500 mm.