10224results about "Soil preservation" patented technology

The invention presents a system for geospatial topographical modeling and real-time system control to be used with subterranean slurry injection technology. The system consists of a predictive modeling subsystem, which processes land characteristics to generate optimal site plans for drilling and injection. The real-time control subsystem implements these plans, dynamically adjusting slurry compositions and injection parameters based on sensor feedback. A feedback loop between the subsystems allows continuous refinement of both predictive models and operational controls, enhancing the precision with which the technology shapes the ground and the efficiency with which the technology sequesters carbon.

The invention relates to the technical field of grouting simulation tests, in particular to a sandy gravel stratum catastrophe grouting prevention and control virtual-real blending collaborative test method and system, and the method comprises the steps: carrying out a grouting test on a sandy gravel stratum simulation model, and obtaining grouting parameters and monitoring parameters in the grouting process; based on the resistivity and the radar data, further obtaining a slurry diffusion path and a diffusion range of the area with the higher surrounding rock grade; based on the resistivity and the optical fiber sensing data, the slurry diffusion path and the diffusion range of the area with the low surrounding rock grade are further obtained; inputting the initial grouting parameters into the trained neural network model to obtain simulation data; carrying out preprocessing and alignment operation on the previous data, and carrying out fusion analysis; and according to the fusion analysis result, grouting equipment parameters and a grouting scheme are pre-controlled and adjusted. And real-time regulation and control of a grouting scheme and equipment are realized.

The invention relates to the technical field of mine side slope restoration, in particular to a mine side slope ecological restoration method which comprises the following steps: S1, performing field investigation and evaluation, and performing comprehensive surveying and mapping on the landform of a mine side slope by using a high-precision surveying and mapping instrument; the anti-seismic effect and the prevention and control of water and soil loss are prominent, the anti-seismic performance is enhanced through deep rock mass anchoring reinforcement, large-diameter and high-strength anchor cables are adopted, bed rock is deeply stabilized, prestress is applied, the integrity of the rock mass is enhanced, reinforced concrete anti-sliding piles are arranged near potential sliding surfaces, the anti-sliding capacity is improved, and the anti-seismic effect is achieved. When a damping ditch is dug between a slope top and a blasting area, loose gravel is filled to weaken vibration energy, the anti-seismic performance of the side slope is comprehensively improved, and water and soil loss is prevented, a drainage system is constructed to intercept surface water, vegetation is reasonably configured, planting grooves and fish-scale pits are arranged, an ecological restoration composite structure layer is built, and a grass spraying and planting and vine climbing system is combined. And water and soil loss is reduced through multiple measures.

The invention relates to a restoration method of a wetland ecosystem, and aims to improve the biodiversity of a wetland and restore and enhance the ecological function of the wetland through systematic measures. The method comprises the following steps: firstly, evaluating the current condition of the wetland, and identifying specific or endangered species and alien invasive species; secondly, by introducing or protecting specific animal and plant species, the natural habitat is recovered, and the biodiversity of the wetland is improved; thirdly, the water quality and soil conditions of the wetland are improved by adopting technologies such as hydrological regulation and control and vegetation restoration; fourthly, the connectivity of the interiors of the wetlands and surrounding habitats is enhanced, and species migration and gene exchange are promoted. By means of the measures, a damaged wetland ecosystem can be effectively restored, key functions such as water quality purification, flood regulation and carbon storage of the wetland ecosystem can be restored, meanwhile, endangered species are protected, and the ecological value and landscape aesthetics of the wetland are improved.

The invention discloses a grouting method and system for enhancing strip mine slope stability, and belongs to the technical field of slope protection. The grouting method comprises the steps that early-stage data are pre-collected, and an analysis model is established; grouting is designed according to a model analysis result; a pressure-resistant grouting pipe is installed and connected with a grouting pump; grouting parameters are adjusted in real time according to feedback of the sensor; after grouting, all data in the grouting holes are analyzed; outputting a slurry permeation three-dimensional cloud picture, a stress change curve and a stability evaluation index; and storing all monitoring data and model parameters. A cyclic self-adaptive system is formed, it is ensured that the grouting process is efficient and accurate, the overall stability is improved for heterogeneous rock mass, dependence on a static geological report is reduced, and therefore the problem that grouting parameters depend on engineering experience or conservative of the static report is avoided.

The invention discloses an ecological slope protection structure and a construction method thereof.The ecological slope protection structure comprises an ecological vegetation layer formed by splicing a plurality of units, and a vegetation planting groove is formed in each unit; the regulation and control layer comprises a honeycomb-shaped coarse aggregate layer, a corrugated plate laminated middle aggregate layer and a fractal tree-root-shaped fine aggregate layer of which the porosity decreases progressively from top to bottom; the drainage mechanism comprises a drainage channel in the ecological vegetation layer, a porous drainage framework and a water collecting well arranged at the slope bottom; the anchoring mechanism comprises a plurality of umbrella-shaped expansion anchor rods, and the lower end of each anchor rod is perpendicular to the slope surface and is inserted into the slope surface soil layer; the lower end of each anchor rod is provided with four sets of extensible 120-degree arc-shaped anchor flukes, and the surfaces of the anchor flukes are provided with bionic ground gripping grooves consistent with the anti-sliding ribs in trend. By innovatively designing the ecological vegetation layer, the regulation and control layer, the drainage mechanism and the anchoring mechanism, stability of the slope protection structure in mechanical property and sustainable development of the ecological environment are achieved, and coordination and unification of vegetation growth and slope stability are promoted.

The invention discloses a vacuum preloading soil settlement prediction and control method based on deep learning, and aims to realize precise prediction and dynamic closed-loop control of soil settlement. According to the method, an encoder-decoder architecture is adopted to construct a model framework, and off-line generation of a proprietary model is completed through multi-measurement-point space-time joint training and a combinatorial optimization strategy; multi-source data of a target monitoring point is collected and processed to generate a sequence sample of an adaptive model; in order to adapt to the time-varying characteristics of the geological attributes, deploying an incremental online learning mechanism, and solidifying and finely tuning model parameters through an elastic weight; and based on a prediction result of the updated model, a PID control unit calculates a vacuum degree adjusting amount, a vacuum pump control system is driven to dynamically adjust the operation vacuum degree, and it is ensured that soil settlement is within a reasonable range. Finally, a cooperation mechanism of high-precision settlement prediction and dynamic vacuum degree regulation and control is constructed, and the settlement control precision, the response speed and the construction safety are remarkably improved.

The invention provides a coal mine underground roadway surrounding rock reinforcement grouting system, and relates to the technical field of coal mining. Comprising a stirring barrel, a grouting pump, a moving frame, a grouting pipe mechanism, a steering mechanism, a grouting pipe length adjusting mechanism, a plugging mechanism and a power mechanism, and an input opening of the grouting pump communicates with the stirring barrel; the grouting pump and the stirring barrel are both arranged on the moving frame; the grouting pipe mechanism communicates with an output port of the grouting pump, and the grouting pipe mechanism is used for grouting the drill hole; the steering mechanism is connected with the grouting pipe mechanism and used for adjusting the angle of the grouting pipe mechanism so that the grouting pipe mechanism can be aligned with the drilled hole. The grouting pipe length adjusting mechanism is connected with the steering mechanism and the grouting pipe mechanism, and the grouting pipe length adjusting mechanism is used for adjusting the length of the grouting pipe mechanism; the periphery of the grouting pipe mechanism is sleeved with the plugging mechanism, and the plugging mechanism is used for plugging a drill hole when grouting is conducted on the interior of the drill hole through the grouting pipe mechanism; and the power mechanism is connected with the grouting pipe length adjusting mechanism.

The invention belongs to the related technical field of microbiological treatment of soil, and discloses a method for improving microbiological sand consolidation strength based on modified plant fibers. Natural plant fibers are subjected to alkali treatment modification, so that non-cellulose components on the surfaces of the natural plant fibers are removed, the roughness and the specific surface area are remarkably improved, the interface friction force and the mechanical connection capacity between the fibers and sand particles are enhanced, more nucleation sites are provided for microorganisms to induce calcium carbonate precipitation, and the content of calcium carbonate is increased. The strength of the solidified sandy soil can be effectively improved, and the biomineralization period is greatly shortened. Meanwhile, after the modified fibers are doped into the sandy soil, a three-dimensional interlaced fiber network structure can be formed in the material in combination with a microorganism induced calcium carbonate deposition (MICP) technology, and the cohesiveness among sand grains and the mechanical property of the overall structure are effectively improved. According to the solidification method, the solidification strength of the sand column is remarkably improved, the technology is simple, green and environment-friendly, and good engineering adaptability and popularization value are achieved in the field of sand solidification.

The invention discloses a desert photovoltaic field rainwater resource utilization and sand fixation integration method, and relates to the technical field of desert control and new energy comprehensive utilization. The system comprises the following components: S1, photovoltaic panel array layout and rainwater collection system design, S2, sand stabilization vegetation optimization and configuration, S3, intelligent drip irrigation system construction and operation, and S4, sand ecological monitoring and optimization management. By means of the integration method, rainwater resources of the desert photovoltaic field are fully utilized, the rainwater resources are effectively collected and utilized by accurately analyzing the rainfall characteristics of the desert area and designing a reasonable photovoltaic panel angle and a rainwater collecting system, a stable water source is provided for the photovoltaic field, and meanwhile, by combining optimization and configuration of sand stabilization vegetation, the sand stabilization effect of the desert photovoltaic field is improved. The ecological environment of the sand land is improved, the vegetation coverage rate and the soil fertility of the sand land are improved, and aggravation of the desertification process can be prevented.

The present invention provides an intelligent construction control method, apparatus, and system for splitting jet grouting mixing piles, relating to geotechnical engineering. The method includes receiving real-time perception information from a construction information self-perception system, which includes drilling depth, drilling rig output power, drill bit torque, drill rod axial force, and pore water pressure of the drill bit. This information is input into a trained machine-learning model for stratum information, establishing a nonlinear implicit correspondence relationship between the perception information and construction stratum conditions, and outputting real-time stratum state information. The real-time stratum state information is then input into a trained self-matching machine-learning model for optimal construction parameters, establishing a nonlinear implicit correspondence relationship between the stratum state information and optimal construction parameters, and outputting current optimal construction parameters. This invention enables real-time intelligent inversion of stratum information and dynamic self-optimization control of construction parameters.

The invention discloses an intelligent double-liquid grouting system and a grouting method. The system comprises a liquid A stirring barrel, a liquid B stirring barrel, a double-liquid grouting pump, a slurry mixer, a PID (Proportion Integration Differentiation) regulating valve, a control system, a flow meter, a pressure meter, a flow sensor and a pressure sensor. The liquid A and the liquid B are respectively prepared and then sent out by a double-liquid grouting pump, enter a slurry mixer to be compounded and mixed, and are injected into a target stratum through a directional grouting pipe. The system collects and analyzes flow and pressure data through a control system, and closed-loop regulation and control of grouting flow and proportion are achieved through PID regulation logic. The PID regulating valve has the functions of over-voltage current limiting and overflow prevention at the same time. The method is suitable for reinforcement and leakage treatment under a complex stratum in geotechnical engineering, and has the advantages of being high in matching precision, high in mixing efficiency, good in safety, high in adaptability and the like.

The invention relates to the technical field of earthwork compaction, and discloses a pipe ditch backfilling and tamping system based on excavator modification. The system comprises an earthwork condition dynamic sensing module which captures a bucket tooth track, a hydraulic oil cylinder pressure pulse and a soil mass vibration spectrum in real time and combines a historical database to construct a model to output a theoretical compaction degree curve; a multi-source compaction difference analysis module performs three-dimensional deviation detection on the theoretical curve and the actual settlement volume data to generate a construction grid-level compaction difference tensor; the defect area association mapping module inputs the tensor into a geological topology analysis network, generates a loose defect propagation path probability cloud chart by combining soil parameters and identifies weak sections; and the tamping strategy self-adaptive configuration module automatically sets operation parameters according to the cloud picture, activates high-precision monitoring on a high-probability defect section, and applies a dynamic excitation force test on adjacent grids, so that intelligent management and control of the backfilling and compacting process are realized.

The invention relates to the technical field of underwater leveling machines, in particular to a transverse and longitudinal walking mechanism, a multi-degree-of-freedom adjusting underwater leveling machine and a construction method. The transverse and longitudinal walking mechanism comprises an end part structure, and a first hole is formed in the end part structure in a penetrating manner; a first hole is formed in the end structure in a penetrating manner; at least part of the transverse moving frame is located in the first hole, and the transverse moving frame is in sliding fit with the end structure in the radial direction of the first hole; the walking longitudinal beam penetrates through the transverse moving frame in the length direction of the first hole and is in sliding fit with the transverse moving frame. The first vertical lifting supporting leg is connected with the end part structure; and the second vertical lifting support leg is connected with the walking longitudinal beam. According to the transverse and longitudinal walking-pedrail walking mechanism, the mode that the walking-pedrail longitudinal beam is sleeved with the transverse moving frame, the transverse moving frame is sleeved with the end structure, the transverse moving frame is used for replacing a transition frame of an existing walking-pedrail type leveling machine, and therefore the overall weight of the transverse and longitudinal walking-pedrail walking mechanism is effectively reduced.

The invention discloses a scouring pile foundation reinforcement method based on an MICP curing technology, which comprises the following steps: acquiring initial environment information such as scouring pit parameters, water flow parameters, tide period and seawater salinity of a delimited area around a pile, and determining grouting parameters such as a grouting window period and a safe flow velocity threshold value and a matching numerical value of a bacterial liquid concentration, a urea concentration and a calcium ion concentration; a grouting assembly composed of a first grouting pipe and a second grouting pipe which are spliced up and down is arranged, and grouting holes are formed in the side wall of the second grouting pipe which is pre-buried in a soil layer; after MICP slurry is prepared according to blending parameters, the slurry is injected into a soil layer in combination with grouting parameters, and meanwhile, the grouting process is dynamically adjusted by monitoring the resistivity of a soil body in real time; and after grouting is completed, the assembly is dismantled, and supplementary grouting is conducted on the local area according to the detection result. According to the method, the accuracy and reliability of pile foundation reinforcement are achieved through environmental parameter adaptation, grout dynamic regulation and control and layered detection and reinjection.

The invention discloses a construction method for governing and repairing desertification degraded grassland in an arid area, and relates to the technical field of sand governing. The method comprises the following steps: evaluating a native vegetation type, vegetation coverage, a soil degradation and desertification degree, a soil type and a water resource condition; performing classified measures according to natural conditions, and determining different types of dune (flowing, fixed or semi-fixed) treatment measures; construction preparation; grid sand barriers are laid on the windward sides of the moving dunes and the semi-fixed dunes, and sand stabilization operation is conducted in a mechanical and manual combined mode; digging pits to plant indigenous shrubs subjected to special treatment, and using rooting water retention bags to improve the survival rate; the granular organic fertilizer and the seeds are mixed and stirred according to a certain proportion and then sown into soil at a time, the operation frequency is reduced, and precise fertilization is achieved. Through effective sand prevention and control measures, the sand wind damage is reduced, the living environment of farmers and herdsmen is protected, and the living quality is improved.

According to the intelligent rolling construction method and system for the concrete face rockfill dam and the computer readable storage medium, self-adaptive adjustment of the rolling speed and frequency is achieved through three-dimensional digital elevation model generation, optimal rolling path planning, rolling parameter dynamic optimization model and real-time compaction degree prediction. The system integrates satellite positioning, BIM model verification, cloud data management and an abnormal protection mechanism, can correct path deviation in real time, generates a pressure supplementing instruction and stores construction data, provides an intelligent solution for high-precision and high-reliability rock-fill dam construction, and is suitable for popularization and application. The technical problems that in traditional rolling construction, manual experience is relied on, parameters are static, monitoring lags behind, and the rework rate is high can be solved.

The present invention discloses an analysis method for detecting the bearing capacity of a single PHC pile and multiple piles in a soft soil foundation, which relates to the technical field of bearing capacity analysis and includes the following steps: S1, numerical model construction and initial setting; S2, single pile bearing capacity analysis; S3, multiple pile bearing capacity analysis; S4, force and load sharing analysis; S5, parameter sensitivity analysis; S6, field test and verification. The main advantage of the present invention is that the bearing capacity characteristics of a single PHC pile and multiple piles in a soft soil foundation are comprehensively and systematically analyzed by combining numerical simulation with field tests, and multiple factors such as pile-soil interaction, loading history, and time effect are considered. The numerical simulation method used has the advantages of low cost, short cycle, and strong repeatability compared to field tests, which greatly reduces research costs and improves research efficiency, and also analyzes parameter sensitivity.

The invention provides an ionic type rare earth tailing restoration method, and relates to the technical field of environment restoration. Through soil improvement, local dominant plant planting and rhizosphere growth-promoting bacteria reinforcement, the heavy metal content, acidity and soil fertility of the rare earth tailing area are improved, soil with reduced heavy metal content, reduced acidity and increased fertility is obtained, continuous growth of arbor-shrub-grass three-layer dominant plants on the rare earth tailing area is promoted, and the yield of the arbor-shrub-grass three-layer dominant plants is increased. And finally, effective repair of the rare earth tailings is realized.

A basement roof lawn vegetation construction method under complex working conditions comprises the steps of implementing complex basement roof modeling and implementing lawn vegetation above a basement roof. The complex basement top plate modeling method comprises the steps of a flat site large-area backfill construction method, a step-shaped basement top plate backfill construction method and a basement top plate large-gradient inclined plate earthwork backfill construction method. The step of implementing the lawn vegetation above the basement top plate comprises the steps of cross construction, backfilling and excavation, slope toe construction and solid soil area construction. According to the technology, the problem of construction of greening in a complex shape on the basement roof of a project is solved, particularly the problem that more slope roofs in a mountaintop shape or roofs in a stepped rice field shape exist is solved, the problem that backfill soil construction is difficult after the basement roof is complex in shape is solved, the stability of backfill soil after backfill soil is improved, and the construction period is shortened. And the concept of green building is practiced.

The invention relates to the technical field of foundation pit supporting, and discloses a large deep foundation pit inner supporting system with a safety system.The large deep foundation pit inner supporting system comprises a telescopic rod, a supporting rod, a connecting plate and a soil retaining plate, one end of the telescopic rod is rotationally connected with a connecting block through a pin, the connecting block is movably provided with an elastic assembly, and the elastic assembly is connected with one side of the supporting rod; the elastic assembly reserves an elastic telescopic space between the supporting rod and the telescopic rod and is used for detecting displacement generated when the supporting rod and the soil retaining plate support the foundation pit, clamping grooves are formed in the two opposite sides of the soil retaining plate, and an assembling structure is arranged on one side of the supporting rod. According to the large-scale deep foundation pit inner supporting system with the safety system, prestress can be effectively applied to the side wall of the foundation pit, so that the periphery of the pit wall has certain supporting force, the deformation condition of the side wall of the foundation pit can be monitored, meanwhile, underground water seepage of a soil layer of the foundation pit can be eliminated in time, and the safety coefficient during foundation pit supporting is improved.

Disclosed in the present invention is a coiled tubing drilling downhole system convenient to move and position. The downhole system comprises a base plate, wherein four through slots run through the bottom of the base plate, four universal wheels are provided at the bottom of the base plate, handlebars are fixed to one side of the top of the base plate, a support frame is provided above the base plate, four square tubes are fixed to the support frame, positioning and stabilizing assemblies are respectively provided inside the four square tubes, a traction roller is rotatably connected inside the support frame, and a first electric motor is fixed to one side of the support frame. The present invention relates to the technical field of oil exploration. The coiled tubing drilling downhole system convenient to move and position, by means of providing automatic soil-ramming mechanisms, automatically rams soil and gravel divided to two sides of the mouth of a borehole, and, by means of cooperation and linkage with automatic soil division assemblies, prevents loose soil and gravel around the mouth of the borehole from slipping into the borehole, thereby improving the drilling efficiency.

The invention relates to the technical field of underground building engineering, in particular to a construction method for a basin type grouting waterproof curtain in an underground limited space. According to the method, through accurate analysis of geological data and reasonable arrangement of the positions and the depths of the grouting holes and the bottom sealing holes, it is ensured that the grouting area is covered comprehensively, the construction precision is improved, through model prediction control, the rate, the concentration and the sequence of grout injection are dynamically adjusted according to the flow and pressure data monitored in real time during grouting, and the grouting efficiency is improved. By means of the method, the diffusion range and compactness of materials can be accurately controlled in the slurry injection process, the gradient descent algorithm is combined with segmented grouting control, a permeation abnormal area existing in construction is recognized and repaired in time, slurry diffusion uniformity and construction efficiency are improved, continuity and integrity of a waterproof curtain are ensured, and the construction efficiency is improved. And through compactness monitoring and corresponding reinforcing measures, the risk of underground water leakage is reduced, construction of the closed structure is combined with arrangement of the drainage well, and the overall reliability of the project quality is improved.

The invention provides a one-time forming salix psammophila grid sand barrier laying device and laying method, and belongs to the field of sand barrier laying. The problems that according to an existing sand barrier laying device, a mechanical arm is used for inserting and fixing salix psammophila, the structure is relatively complex, and efficiency is low are solved. Comprising a storage box, an extrusion type sorting mechanism, a branch conveying mechanism, a branch inserting mechanism, a ditching mechanism, a soil covering mechanism, a crawler chassis, a reversing mechanism, a pushing mechanism and a driving mechanism, bundled salix mongolica branches can be stripped and conveyed under the action of the extrusion type sorting mechanism, and the branch conveying mechanism can separate the salix mongolica branches at equal intervals; the branch inserting mechanism can conduct posture correction on salix mongolica branches twice, so that the salix mongolica branches are vertically inserted into the sand land, compared with a mechanical arm, used components are simpler and more universal in structure, automatic laying of salix mongolica sand barriers can be achieved, and high-quality one-time forming of the salix mongolica sand barriers is achieved; and compared with a gripper, the drill rod inserting efficiency is higher, the salix psammophila grid sand barrier can be completed at a time through the device, and the device has the advantages of standardization and modeling.

The invention discloses an underwater riprap foundation bed tamping method based on a sand compaction pile ship. The method comprises a sand compaction pile ship transformation process and a tamping and leveling process. When the flow of transforming the sand compaction pile ship is carried out, sand outlet guide doors at the lower ends of the three pile sinking sleeves on the sand compaction pile ship are cut off firstly; the lower ends of the three pile sinking sleeves are each connected with a bottom flange; the three tamping plate devices are connected to the bottom flanges of the three pile sinking sleeves in a one-to-one correspondence mode, and each tamping plate device comprises a tamping sinking pipe, a top flange, a tamping sinking bottom plate, an enclosure plate, a middle plate, a plurality of upper-layer stiffening plates and a plurality of lower-layer stiffening plates; when the tamping and leveling process is carried out, underwater riprap operation on the lowest layer of the foundation bed is carried out firstly, and then the transformed sand compaction pile ship is moved to a vibrating tamping position on the underwater riprap surface of the lowest layer of the foundation bed for tamping and leveling; and then the ship is moved to the next ship position for tamping and leveling of the next vibrating tamping position. The construction efficiency in the drop hammer tamping process of the underwater riprap foundation bed can be improved.

The invention provides a deep well roadway surrounding rock area stress optimization control method, and belongs to the technical field of surrounding rock area stress optimization, and the method comprises the following steps: obtaining key data of deep well roadway surrounding rock; identifying a potential stress concentration area; performing grading evaluation on the identified potential stress concentration area, and determining the grade of the surrounding rock according to an evaluation result; according to the grade of the surrounding rock, a corresponding supporting strategy is formulated; the advanced presplitting blasting technology is applied to all grades of surrounding rocks; arranging a plurality of sensor nodes in the stress concentration area; the sensor nodes send monitoring data to the cloud processing center in a wireless mode, and the cloud processing center predicts the stability of surrounding rock and sends a prediction result to the expert terminal; and an expert formulates a new support strategy or adjusts an existing support strategy according to the prediction result of the expert terminal. According to the stress optimization control method for the surrounding rock area of the deep well roadway, the stability of the surrounding rock is improved through comprehensive technical means, and safe and efficient mining of a mine is guaranteed.

The invention belongs to the technical field of rock-soil side slope protection, and particularly relates to an expansive soil side slope flexible ecological comprehensive supporting system which comprises an intercepting ditch, a vegetation protection layer, a composite waterproof layer, flexible anchor rods, water seepage and drainage pipes, cultivation and planting soil, a drainage ditch, a backfill soil layer, a step-shaped slope surface, a slope surface and slope protection vegetation. The slope surface is excavated into a step-shaped slope surface, a composite waterproof layer, expansive soil backfill soil, a vegetation protection layer and cultivation and planting soil are sequentially arranged on the step-shaped slope surface from bottom to top, and slope protection vegetation is planted and formed on the cultivation and planting soil; the composite waterproof layer is fixed to the step-shaped slope face through the flexible anchor rods. The vegetation protection layer and the slope protection vegetation together reinforce the shallow soil body, and the composite waterproof layer and the flexible anchor rod play a role in absorbing and relieving the received expansive force. The method has an ecological greening effect, has the functions of common supporting of the shallow surface layer and the deep layer of the expansive soil slope, flexible reinforcement and expansion reduction and allowable generation of a small amount of deformation, is simple in construction and high in efficiency, and can realize long-term stability of the shallow surface layer and the deep layer of the expansive soil slope.

The invention discloses a water storage and drainage system capable of keeping slope stability. The water storage and drainage system comprises a water drainage pipe assembly and an automatic water supplementing assembly. The drainage pipe assembly comprises a plurality of transverse assembly type pipes, a plurality of oblique assembly type pipes and a plurality of plastic capillary pipes, the transverse assembly type pipes and the oblique assembly type pipes are perpendicularly communicated in a staggered mode, and the transverse assembly type pipes are communicated with the plastic capillary pipes at the corresponding positions. A sand cushion layer and a perlite layer are laid on the slope surface of the side slope; the automatic water supplementing assembly comprises a water pumping machine, a plurality of water supplementing pipes and a plurality of wireless temperature and humidity sensors. A water outlet of the water pumping machine is connected with the water supplementing pipes through a water conveying pipeline. The water pumping machine is provided with an intelligent automatic sensing system; the water storage and drainage system capable of keeping the stability of the side slope further comprises a plurality of assembly type concrete sash beams laid on the perlite layer, and the water supplementing pipe is connected with the rotating spray heads. A soil dressing layer used for planting cold-resistant water-retaining vegetation is laid in the planting area of the fabricated concrete sash beam. The water content of the side slope can be effectively adjusted and controlled, so that the stability of the side slope is improved.

The invention discloses a desert sand-based artificial earthwork lattice sand barrier and a preparation and use method thereof, the artificial earthwork lattice sand barrier comprises the following components in percentage by mass: 93-97% of a coal-sand-ash mixture, 1-10% of an activating agent and 5-15% of externally doped water, and the artificial earthwork lattice sand barrier is prepared by compacting and molding, and the coal-sand-ash mixture accounts for 93-97%, the activating agent accounts for 1-10% and the externally doped water accounts for 5-15%. The desert sand base artificial earthwork grid is horizontally laid in the desert and a water and soil loss area, desert sand stabilization can be achieved, and surface layer floating sand and surface layer sandy soil loss in the water and soil loss area are prevented. Typical coal-fired solid wastes such as the coal ash and the coal slag are used as raw materials for preparing the desert sand-based artificial earthwork grid, collaborative resource utilization of the desert sand, the coal ash and the coal slag is achieved, resource utilization of a large amount of industrial solid wastes is combined with desertification prevention and control engineering, environmental pollution is reduced, and the desertification control cost is reduced.

The utility model discloses a combined dewatering and drainage system suitable for treating stagnant water on the upper layer of a strip mine side slope. An inclined drainage hole (1), a vertical drainage hole (2) and a drainage ditch (3) are combined to form the combined dewatering and drainage system. Sleeves are arranged in the inclined drainage hole (1) and the vertical drainage hole (2) within the depth of a fissure zone, a hard permeable pipe penetrates through the sleeves and extends into the inclined drainage hole (1) and the vertical drainage hole (2), and a water stop plug is arranged in an annular gap between the hard permeable pipe and the wall of the inclined drainage hole (1) and the wall of the vertical drainage hole (2). And a plurality of water permeable holes are formed in the hard water permeable pipe below the water stop plug in the vertical drainage hole (2) and the hard water permeable pipe within the water stop plug in the inclined drainage hole (1). The water pressure near the water-resisting layer is reduced through the continuous gravity drainage effect, the rainfall cost is reduced, the erosion influence of water flow on slope cracks is avoided, and the overall stability of the strip mine slope is improved.