Patents
Literature
324 results about "Soil mixing" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Flow-state solidified soil mixing construction method based on automatic adjustment of proportioning parameters
PendingCN120481068AMixing operation control apparatusCement mixing apparatusEarly warning systemMulti objective optimization algorithm
The invention provides a flow-state solidified soil mixing construction method based on automatic adjustment of proportioning parameters, belongs to the technical field of flow-state solidified soil, and realizes intelligent control of a flow-state solidified soil mixing process by establishing a three-section type precise screening and stirring system and a high-precision automatic control system. According to the method, firstly, target performance parameters are input, and an optimal matching scheme is automatically selected through a multi-target optimization algorithm; starting an original soil treatment unit to perform soil material dispersion treatment and measuring the physical characteristics of the soil material; adding the raw materials according to the accurate measurement, and fully mixing; when it is detected that the performance of the mixture deviates from a target value, the system automatically triggers a parameter compensation mechanism for adjustment; and meanwhile, a material ratio fluctuation early warning system is established, so that uneven mixture quality caused by starting and stopping of equipment or material conveying delay is avoided, and the technical problem that in the prior art, matching parameters are difficult to accurately regulate and control in real time in the mixing process of the flow-state solidified soil is solved.
Owner:CHINA CONSTR EIGHTH BUREAU DEV & CONSTR CO LTD +1
Fertilizer and soil mixing structure, coast saline-alkali soil treatment and salt elimination equipment and coast saline-alkali soil treatment and salt elimination method
The invention relates to the technical field of saline-alkali soil improvement equipment, in particular to a fertilizer and soil mixing structure and coast saline-alkali soil treatment salt elimination equipment and method. The fertilizer and soil mixing structure comprises a soil feeding box, a material receiving disc, a fertilizer feeding hopper, a discharging box and a stirring assembly. The central axis of the soil feeding box is vertically arranged, a plurality of first through holes are formed in the bottom face of the soil feeding box, the material receiving disc is arranged in the soil feeding box, and a plurality of second through holes are formed in the edge of the material receiving disc. The stirring assembly comprises a driver, a stirring piece and a mixing piece, the two ends of the stirring piece are connected with the output end of the driver and the center of the top face of the material receiving disc respectively, and the mixing piece is fixedly arranged at the center of the bottom face of the material receiving disc. When the device is used, soil can rapidly leave the soil feeding box through the first through holes, organic fertilizer can rapidly leave the fertilizer feeding hopper through the second through holes, the mixing piece can make full contact with the soil and the organic fertilizer during rotation, and the mixing efficiency of the soil and the organic fertilizer is improved.
Owner:DALIAN MARITIME UNIVERSITY +1
Geological soil sampling equipment for engineering investigation
The invention relates to the technical field of geological sampling, in particular to geological soil sampling equipment for engineering reconnaissance, which comprises a core shaft and an isolation cylinder which are distributed in an inner and outer sleeving manner, a conveying body is arranged between the core shaft and the isolation cylinder, and the core shaft and the isolation cylinder are connected through the conveying body. The conveying body is used for drilling into a soil layer, at least part of the isolation cylinder is used for shielding soil, and a plurality of storage units for sampling are arranged on the isolation cylinder; through the design of the isolation cylinder, soil of different depths can be effectively isolated, surface soil and deep soil are prevented from being mixed, the accurate sampling depth is ensured, the isolation cylinder makes contact with the inner wall of an underground drill hole, excavated soil and inner wall soil are prevented from being mixed, the purity of the inner wall soil is kept, and the sampling precision is improved.
Owner:SHANDONG DINGSHI ARCHITECTURAL DESIGN CO LTD
Composite foundation pit supporting method
The invention provides a construction method of a composite foundation pit supporting structure, which adopts a cement-soil mixing pile wall, a plurality of H-shaped steels, a reinforced concrete coping plate, a cement-soil wall top beam, a cast-in-situ bored pile row, a plurality of pre-stressed anchor rods, a pile row coping beam and a plurality of connecting beams, a cast-in-situ bored pile row is arranged on a construction working face, close to the foundation pit side, of a cement soil mixing pile wall, the upper end of a pre-stressed anchor rod is arranged on a pile row capping beam, the pre-stressed anchor rod obliquely penetrates through the cement soil mixing pile wall through a first channel, and a cement soil wall top beam and the pile row capping beam are in rigid connection through a connecting beam. The cement-soil mixing pile wall serves as an initial cantilever soil retaining main body, and is combined with the cast-in-situ bored piles to form an integral frame for connecting the cement-soil wall top beam and the pile-in-row capping beam, so that support-free excavation of the foundation pit can be realized, the construction operation is convenient, the construction period is effectively shortened, the manufacturing cost is saved, and meanwhile, the safety and the stability of the whole foundation pit in the excavation period are ensured.
Owner:SHANGHAI CONSTRUCTION GROUP CO LTD
Constant-temperature curing and loading integrated test equipment for preparation of mixing pile
The invention discloses constant-temperature curing and loading integrated test equipment for preparation of mixing piles, and relates to the technical field of preparation of mixing piles, and the constant-temperature curing and loading integrated test equipment comprises a refrigerator, a constant-temperature device, a loading device and a multi-angle mixing pile preparation device. According to the constant-temperature curing and loading integrated test equipment for preparing the stirring pile, through coordination of heating and refrigerating, the temperature control precision of a conventional refrigerator is improved, and the uniformity of a temperature field in the refrigerator is guaranteed; the whole process from pile manufacturing, maintenance to loading is completed in the same constant-temperature space, interference caused by process conversion is eliminated, finally, the reinforcing process and effect of the inclined cement-soil mixing pile in the high-temperature frozen soil roadbed are accurately simulated, and test errors caused by temperature fluctuation and process separation in a traditional method are avoided; by quickly adjusting the angle of the stirring rod and selecting different spray hole combinations, one device can simulate various construction processes, different scientific research and test requirements are met, and the flexibility in use is improved.
Owner:XI'AN PETROLEUM UNIVERSITY
Intelligent concentrated supply fertilization and soil preparation machine and use method thereof
The invention relates to the technical field of soil preparation and fertilization agricultural machinery, in particular to an intelligent centralized supply fertilization soil preparation machine and a using method.The intelligent centralized supply fertilization soil preparation machine comprises a fertilizer box, the fertilizer box is provided with a fertilization assembly, and the fertilization assembly comprises a fertilizer distribution amount adjusting mechanism and a centralized air conveying mechanism; the fertilizer distribution amount adjusting mechanism is used for adjusting the fertilizer output from the fertilizer box, and the centralized air conveying mechanism is used for conveying the fertilizer subjected to fertilizer distribution; the stubble cleaning and soil crushing assembly is used for crushing obstacles in front of the advancing direction; the soil loosening and fertilizing assembly comprises a shallow loosening and fertilizing mechanism and a deep loosening and fertilizing mechanism; the vibration anti-blocking assembly comprises a vibration energy conversion mechanism and a high-frequency vibration mechanism; the backfilling assembly comprises a soil moisture filling mechanism and a pressing mechanism; the system has the advantages of being intelligent, multifunctional and high in reliability, and the comprehensive efficiency and quality of fertilization and soil preparation work are effectively improved.
Owner:HEILONGJIANG PROV AGRI MACHINERY ENG SCI INST
Soil preparation machine for garden flower border construction
The utility model provides a land preparation machine for garden flower border construction, which belongs to the technical field of garden construction equipment and comprises a bearing plate, a U-shaped metal arm grip is arranged on one side of the bearing plate, a driver and an openable baffle are arranged on the upper end face of the bearing plate, and a soil cutting knife component is arranged below the openable baffle. The driver drives the earth cutting knife assembly to rotate through the transmission device; a containing box used for containing nutrient soil and fertilizer is arranged above the baffle capable of being opened and closed. The accelerator and the baffle switch are arranged on the U-shaped metal arm grip, the accelerator is connected with the driver, and the baffle switch is connected with the openable baffle; the soil preparation machine can effectively mix nutrient soil, fertilizer and soil in the working process, the soil improvement efficiency is greatly improved, and extra mixing operation time and cost are saved.
Owner:SICHUAN TIANYI ECOLOGICAL GARDEN GRP CO LTD +1
Movable type in-situ rapid emergency repairing and recycling equipment for polluted soil
Owner:山东省土壤污染防治中心 +1
Stiff composite pile construction detection method based on quantum technology and electromagnetic geophysical prospecting method
The invention discloses a stiff composite pile construction detection method based on a quantum technology and an electromagnetic geophysical prospecting method, which comprises the following steps of: constructing a peripheral cement soil pile and a core pile, and doping an electromagnetic sensitive material into a cement soil curing agent; a quantum gravity gradiometer and an electromagnetic induction instrument which are integrated on construction equipment are used for collecting gravitational field and electromagnetic field data of a construction area in real time in the whole process of cement soil stirring and core pile pressing-in; the density, the water content distribution and the uniformity of the cement soil are inversed and regulated in real time, and an unfavorable geologic body is identified; dynamically adjusting construction parameters based on cement soil properties and geological conditions obtained by inversion, and performing targeted reinforcement on a bearing stratum; the pile end stress bubble formation and the pile-soil interaction effect are verified; and based on the multi-source data acquired in the whole process, generating a digital quality file of the single pile for quality acceptance. The method can realize a construction process, namely a detection process, a single pile, namely a sensor, and a global data driving decision.
Owner:沙焕焕
Composite supporting system for excavation of soft soil texture foundation pit
The utility model discloses a composite support system for excavation of a soft soil texture foundation pit, which comprises SMW (soil mixing wall) construction method piles, three-shaft mixing piles and an underground support structure, and the SMW construction method piles are arranged at intervals along the outer side of the foundation pit in the circumferential direction to form an outer enclosure structure. The three-shaft mixing piles are arranged along the inner side of the foundation pit at intervals and located on one side of the SMW construction method piles so as to form an inner reinforcing structure, the underground supporting structure is arranged in the SMW construction method piles and located in the foundation pit, and the underground supporting structure comprises an underground body, horizontal inner supports, stand column piles, latticed columns and adjustable inclined throwing supports. The latticed columns are vertically arranged below the horizontal inner supports, the bottom ends of the latticed columns are inserted into the stand column piles, and the adjustable inclined throwing supports are installed between the side walls of the underground body and a bottom plate of the underground body in an inclined mode. A composite supporting system composed of the composite supporting structure and the underground supporting structure is adopted, and the composite supporting system is suitable for soft soil geologic condition supporting and can provide higher supporting force.
Owner:GUANGZHOU HENGSHENG CONSTR ENG
Method and system for predicting pile-forming strength of cement-soil mixing pile based on ensemble learning
The invention provides a method and system for predicting the pile-forming strength of a cement-soil mixing pile based on integrated learning, and the method comprises the steps: firstly, obtaining a parameter correlation set which comprises the working condition parameters of mixing equipment, the ratio parameters of cement-soil mass and the geological condition parameters of a construction site in the whole construction period of the cement-soil mixing pile, and then constructing a parameter correlation mode; generating a first association mode of the working condition and the matching parameter and a second association mode of the matching and the geological condition parameter, generating a feature association link of an integrated learning framework according to the association modes, and calling the adaptive integrated learning framework to perform multi-mode collaborative prediction on the link to obtain a pile forming strength change trend; and finally, a pile forming quality evaluation link is generated based on the pile forming strength change trend and the preset interval, so that the strength change can be accurately predicted, construction is guided, and the pile forming quality is improved.
Owner:JIANGXI ACAD OF WATER RESOURCES (JIANGXI PROVINCE DAM SAFETY MANAGEMENT CENT JIANGXI PROVINCE WATER RESOURCES MANAGEMENT CENT)
Preparation device and method for flow-state solidified soil
The invention discloses a preparation device and method for flow-state solidified soil, the preparation device comprises a stirring assembly (4) arranged on a high-pressure water source output port and a mixing assembly (3) arranged between the high-pressure water source output port and the stirring assembly (4), through the stirring assembly (4), stirring and mixed powder wet treatment is carried out on a soil material, a curing agent and an additive, and through the mixing assembly (3), the soil material, the curing agent and the additive are subjected to wet treatment. According to the invention, mixing treatment of a soil material subjected to wet treatment of mixed powder, a curing agent and an additive in a water flow state environment is realized, preparation of flow-state solidified soil is realized in mixing treatment of a high-speed double-hedging component, and the technical problem that solidified soil mixing is realized by using a concrete mortar mixer truck is solved; therefore, the preparation effect of the solidified soil is improved.
Owner:THE SECOND CONSTR OF CHINA CONSTR EIGHTH ENG DIV
Intelligent cement-soil mixing pile machine
PendingCN121531309ATelemetry/telecontrol selection arrangementsParticular environment based servicesData connectionSoil mixing
The invention discloses an intelligent cement-soil mixing pile machine, which relates to the technical field of building equipment and comprises a pile machine intelligent edge terminal, an intelligent slurrying station subsystem and a cloud platform management subsystem, the pile machine intelligent edge terminal is integrated on a cement-soil mixing pile machine; the intelligent slurrying station subsystem is located on a construction site; the cloud platform management subsystem is deployed in a remote server; data connection is established between the pile machine intelligent edge terminal and the intelligent pulping station subsystem through a first wireless communication network, and the first wireless communication network is a LoRa long-distance radio micropower wireless network; data connection is established between the pile machine intelligent edge terminal and the cloud platform management subsystem through a second wireless communication network. According to the invention, the crossing from a'fixed formula 'to a'dynamic formula' is realized, the quality uniformity and reliability of the pile body are ensured, the ineffective operation is reduced through optimal control, and the cost of materials such as cement and the like can be obviously saved.
Owner:CCCC THIRD HIGHWAY ENG CO LTD
Foundation pit supporting structure with vertical pre-anchored rigid and flexible double-row piles and design method of foundation pit supporting structure
The invention relates to the technical field of civil engineering, in particular to a foundation pit supporting structure with vertical pre-anchored rigid and flexible double-row piles and a design method thereof, and at least solves one of the problems that an existing foundation pit supporting project is high in cost, high in construction difficulty, and difficult in supporting deformation and safety control. The foundation pit supporting structure comprises a front-row flexible pile, a rear-row rigid pile, a top beam and a passive area reinforcing body. The front-row flexible piles and the rear-row rigid piles are connected with each other through a top beam; vertical anchoring parts are arranged in the rear-row rigid piles; the passive area reinforcing body is arranged on the side, away from the rear-row rigid piles, of the front-row flexible piles and comprises a plurality of single-shaft cement soil mixing piles, and the pile lengths of the single-shaft cement soil mixing piles are decreased in the direction away from the front-row flexible piles. According to the method, the construction safety and stability can be improved, and the engineering cost economy is improved on the premise that the passive area constraint condition and the structure safety of the supporting structure are guaranteed.
Owner:ARCHITECTURAL DESIGN RES INST OF GUANGDONG PROVINCE
Soft soil levee slope composite reinforcing method and device based on prestressed corrugated pile emergency support
The invention discloses a composite reinforcing method and device for a soft soil levee slope based on prestressed corrugated pile emergency support, and the method comprises the steps: investigating a to-be-reinforced levee slope and engineering geological conditions in an influence range of the to-be-reinforced levee slope, and obtaining investigation data; calculating by setting a slope stability analysis strategy to obtain a natural state safety coefficient; the state of the to-be-reinforced levee slope is judged, and a state result is obtained; according to a state result, a cement-soil mixing pile temporary construction platform, a composite reinforcing area, a prestress wave-shaped pile and a three-dimensional drainage system are designed; and performing construction preparation and reinforcement construction according to the design scheme. The problems of temporary emergency and permanent splitting, construction disturbance instability, high cost, river channel occupation, difficulty in considering efficiency and ecology and the like in the prior art are solved.
Owner:HUNAN PROVINCIAL WATER CONSERVANCY & HYDROPOWER SURVEY & DESIGN INST GENERAL INST
Cement mixing pile construction parameter optimization method based on rheological property and numerical simulation
PendingCN121902375ADesign optimisation/simulationSpecial data processing applicationsSoil scienceSoil mixing
The invention provides a cement mixing pile construction parameter optimization method based on rheological characteristics and numerical simulation. The cement mixing pile construction parameter optimization method comprises the following steps: S1, test preparation; s2, establishing a rheological model; s3, constructing a CFD (computational fluid dynamics) simulation model; s4, model motion control; s5, grid independence verification is carried out; s6, verifying the reliability of the model; s7, performing parameter optimization analysis; and S8, engineering application. Through a mode of combining indoor tests and CFD simulation, the construction parameters are systematically optimized, and the cement stirring uniformity and the engineering quality are improved.
Owner:天津市博川建设工程有限公司 +1
Double-wheel stirring drilling machine
ActiveCN224213411UAvoid wavy surfacesGuaranteed verticalitySoil-shifting machines/dredgersSlurry wallSoil mixing
The utility model relates to the technical field of groove wall reinforcing construction, in particular to a double-wheel stirring drilling machine which comprises an engineering vehicle and a drilling machine base, a machine frame is arranged on one side of the drilling machine base, a drilling rod is arranged on one side of the machine frame, a lifting machine corresponding to the drilling rod is arranged on the machine frame, a groove milling machine is arranged at the bottom of the drilling rod, and an inclinometer is arranged on the groove milling machine. At least two groups of milling wheels are arranged on the slot milling machine; the bottom of the rack is hinged to the drilling machine base, a connecting frame is arranged on one side of the middle of the rack, a stabilizing rod is arranged between the connecting frame and the drilling machine base, a steel cable is connected to the top end of the drilling rod, and a winch is arranged on one side of the engineering truck. According to the utility model, the milling wheel is used for forming a cement-soil mixing pile with a rectangular groove section in a horizontal axial rotary mixing manner, and a single-shaft or multi-shaft mixing drilling tool is replaced to vertically rotate, so that a cylindrical cement-soil mixing pile is formed, and a wavy surface is prevented from appearing after an underground continuous wall is poured and formed.
Owner:CHINA RAILWAY SHISIJU GROUP CORP +1
Cage type mixer suitable for high-strength deep curing mixing pile construction
This invention relates to the technical field of soil mixing piles and discloses a cage mixer suitable for the construction of high-strength deep-solidification soil mixing piles. The mixer includes a mixing shaft driven by a power source, with multiple fixing rings fitted around its outer periphery. The mixing shaft passes through the center of the fixing rings and is rotatably connected to them. A cylindrical cavity is formed between the fixing rings. The mixing shaft has an inner section passing through the cavity and a lower section extending below the cavity. Multiple inner mixing blades are provided on the inner section, and multiple lower mixing blades are provided on the lower section. Multiple bottom drill teeth are provided at the bottom of the lower section. A grout outlet is provided in the mixing shaft, with a bottom grout outlet at the bottom. The top of the grout outlet is connected to a grouting pump via a grouting pipe. When the mixing shaft drills into the soil, the multiple bottom drill teeth drill downwards into the soil, the multiple inner mixing blades and the multiple lower mixing blades mix the soil, and the multiple fixing rings guide the drilling direction of the mixing shaft.
Owner:SHENZHEN HONGYEJI GEOTECHNICAL TECH CO LTD
Exploration sampling barrel
The utility model discloses an exploration sampling barrel which comprises a sampling barrel body, the sampling barrel body comprises a drilling ring, the top of the drilling ring is fixedly connected with a sliding rod, the outer surface of the sliding rod is connected with a plurality of separating barrels in a sliding mode, every two adjacent separating barrels are connected in an abutting mode, and the drilling ring is connected with the adjacent separating barrels in an abutting mode. Sample cylinders are arranged in the multiple separation cylinders, every two adjacent sample cylinders abut against each other, and the drilling rings abut against the adjacent sample cylinders; a top cover slides on the top of the sliding rod in a limiting manner, and the top cover is propped against the adjacent sample cylinder and the separation cylinder. According to the soil sampling device, through the arrangement of the drilling ring, the sliding rod, the separating cylinder, the sample cylinder, the top cover, the long rod and the auxiliary sampling plate, after sampling is completed, samples of all depths can be taken out in a layered mode, all soil is prevented from being mixed together, the soil samples of all the depths can be obtained easily, and the auxiliary sampling plate has an auxiliary function and has a lifting effect on the soil; and the separated soil can be discharged conveniently.
Owner:河北省地质调查院(河北省碳中和地学研究中心)
Fan foundation pile foundation construction method
The invention relates to the technical field of fan foundations, and provides a fan foundation pile foundation construction method which comprises the following steps that a cement soil mixing pile is constructed in the center of a prestressed pipe pile, and the diameter of the cement soil mixing pile is larger than that of the prestressed pipe pile; during construction of the cement-soil mixing pile, thin slurry is sprayed during downward drilling for the first time, thick slurry is synchronously sprayed during drilling lifting, the repeated stirring frequency is not less than 2 times, and the cement-soil mixing pile with the pile bottom elevation not higher than the designed bottom elevation of the prestressed pipe pile is formed; before the cement soil mixing piles are solidified, the prestressed pipe piles are pressed into the designed depth; the pile sinking problem in high underground water and dense sandy soil geology can be solved, the physical and mechanical properties of soil around the pile are effectively improved by constructing the cement soil mixing pile with the larger diameter in the center of the prestressed pipe pile, the problem that pile sinking cannot be achieved under the dense sandy soil geology condition can be effectively solved, and the pile sinking method is suitable for various soil layers and hard soil layers containing dense sandy soil and the like; and the application range of the prestressed pipe pile is widened.
Owner:湖南三一智慧新能源设计有限公司
Inner and outer core variable cross-section composite pile and construction method thereof
The invention discloses an inner and outer core variable cross-section composite pile and a construction method thereof.The inner and outer core variable cross-section composite pile comprises an outer core and an inner core, the inner core is a precast concrete pile and comprises a variable cross-section section located on the upper portion and at least one uniform cross-section section located on the lower portion, and the cross-section area of the variable cross-section section is decreased from top to bottom; the variable-section sections and the uniform-section sections are connected through connecting assemblies, every two adjacent uniform-section sections are connected through connecting assemblies, the outer core is a cement-soil mixing pile which is formed in situ on site, part of the section sections of the cement-soil mixing pile are in an expanding mode, and the central axis of the inner core coincides with the central axis of the outer core. The bearing performance, the economical and environment-friendly performance and the construction quality and efficiency of the pile foundation are comprehensively improved.
Owner:CHINA RAILWAY SIYUAN GRP GUANGZHOU DESIGNING INST CO LTD +1
Mid-layer Soil Cement Mixer (S-TRD13)
1. Name of the Design Product: Middle Layer Cement Soil Mixer (S-TRD13). 2. Use of the Design Product: Mix and stir curing materials such as cement with the original soil to form a solid wall. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph Most Indicating the Design Key Points: Perspective view.
Owner:LIAONING ZIZHU PILE FOUND ENG CO LTD
Narrow site shallow soft soil roadbed treatment combined structure
The utility model belongs to municipal engineering technical field, concretely relates to a kind of shallow soft soil subgrade treatment combination structure in narrow site, comprising: replacement boundary line, roadbed replacement base layer, replacement demarcation line, ground line, excavation replacement slope line, cement soil mixing pile solid pile, cement soil mixing pile empty pile, cement solidification area and replacement granular material.Excavation replacement slope line starts from replacement demarcation line, and ends in replacement boundary line;Cement soil mixing pile solid pile is located below the area inside replacement boundary line road, its pile bottom is below replacement demarcation line, and pile top is cut off in excavation replacement slope line;Cement soil mixing pile empty pile is only as the "virtual section" that cement soil mixing pile solid pile body extends upwards;Cement solidification area is the area that replacement boundary line, cement soil mixing pile solid pile bottom and excavation replacement slope line, ground line are enclosed to form.The utility model can reduce the range of slope excavation, reduce the influence of excavation replacement subgrade treatment to surrounding environment and building structures.
Owner:GUANGXI RAIL TRANSIT DESIGN INSTITUTE CO LTD
A rotary detachable electrochemical treatment device
The application discloses a rotary detachable electrochemical treatment device, and the core comprises a corrosion-resistant spiral electrode, a direct current, a rotatable cylindrical body with holes, a polycrystalline manganese carbon shuttle electrode material and a dynamic scattering system. The two electrodes are connected to the positive and negative poles of a direct current power supply, and an electric field is formed between the two electrodes. The side wall of the cylindrical body is provided with an anti-backflow inclined hole, and an electrode material hopper bin and an air compressor are arranged at the top of the cylindrical body. The material is uniformly scattered to the soil by air pressure driving. The device is externally integrated with spiral blades, which can stir the soil synchronously when the device rotates, so that the electrode pores are prevented from being blocked by particulate matter. After the repair is completed, the cylindrical body can be detached, and the electrode system is retained. When the device is operated, the electrode material is dynamically penetrated into the soil through the inclined hole, and the corrosion-resistant spiral electrode applies an electric field to drive the directional migration and reduction and fixation of heavy metal ions. Through the synergistic effect of rotary scattering and electric field, the application solves the technical problems of uneven repair, easy blockage and electrode deactivation of the static device, and is suitable for efficient in-situ repair of heavy metal contaminated soil.
Owner:CHANGSHA ENVIRONMENTAL PROTECTION COLLEGE +1
Section steel plate cement-soil stirring wall structure for deep foundation pit
The utility model discloses a structural steel plate cement soil stirring wall structure for a deep foundation pit. The structural steel plate cement soil stirring wall structure comprises a three-axis cement soil stirring wall, H-shaped steel and U-shaped steel plate piles. Wherein the three-axis cement soil stirring wall is of a three-circle lap joint pile body structure, and the H-shaped steel and the U-shaped steel sheet piles are arranged in the three-axis cement soil stirring wall. A plurality of profile steels and a plurality of U-shaped steel sheet piles are uniformly distributed in the three-axis cement-soil stirring wall; convex spigots are arranged on the H-shaped steel, concave spigots are arranged on the U-shaped steel sheet piles, and the H-shaped steel and the U-shaped steel sheet piles are connected through the convex spigots and the concave spigots to form a continuous steel sheet pile combination. According to the U-shaped steel sheet pile, the concave spigots are meshed with the convex spigots of the H-shaped steel, so that the problem that the local shear bearing capacity of a traditional SMW construction method pile cannot be calculated completely due to the fact that the strength of cement soil is too low is solved, and meanwhile the problem that the cement soil between the steel sections is extruded out due to the pressure effect of water and soil on the outer side is solved.
Owner:CHINA DESIGN GROUP CO LTD
Ground improvement method
PCT designated stage expiredWO2025120919A1In situ soil foundationSoil preservationSoil scienceFluorescence
The present method is a ground improvement method with which a ground improvement body is constructed by mixing soil with cement slurry to which a water-soluble fluorescent dye at a predetermined concentration is added, the method comprising: a first step of irradiating the ground improvement body with black light from a light source; a second step of measuring the ground improvement body irradiated with the black light by the light source using a measurement device; and a third step of comparing an emission rate obtained based on the data output by the measurement device with a predetermined threshold value and determining whether the mixed state of the cement slurry is acceptable.
Owner:TENOTSUKUSU KYUSHU
High-strength solidified soil mixing pile construction equipment that replaces bite piles and concrete piles
The present invention relates to the technical field of mixing pile construction equipment, and discloses high-strength solidified soil mixing pile construction equipment that replaces interlocking pile concrete piles. The equipment comprises a drilling platform arranged on the pile construction site, a power head and a mixing drill rod clamped and rotated by the power head are provided on the drilling platform, a mixing drill bit is provided at the bottom of the mixing drill rod, which drills downward into the soil at the pile construction site, and a slurry outlet for spraying solidified slurry and an air outlet for spraying high-pressure gas are provided at the bottom of the mixing drill bit. The soil in the pile construction site is cut, broken up and stirred by the mixing drill rod and the mixing drill bit of the rotary drilling rig, and then the solidified slurry and high-pressure air are sprayed by the mixing drill bit. The soil and the solidified slurry are fully mixed and solidified to form piles, and the high-pressure air sprayed by the mixing drill bit can further improve the mixing effect of the soil and the solidified slurry, thereby solving the problems of significantly low strength, poor quality, poor integrity and easy leakage of the rotary jet pile body.
Owner:SHENZHEN HONGYEJI GEOTECHNICAL TECH CO LTD
Waste mud soil treatment device
The utility model relates to the technical field of building material recycling, in particular to a waste pug soil treatment device, which comprises an iron remover, a thermalizing device and a soil mixing device, the iron remover is provided with a sludge outlet and a sludge inlet, the thermalizing device is arranged at the sludge outlet of the iron remover, and the soil mixing device is arranged at the sludge inlet of the iron remover. And the soil mixing device is arranged on one side, far away from the de-ironing separator, of the thermalizing device. According to the utility model, the iron remover is arranged to remove scrap iron and iron-containing impurities in the waste pug, the iron-removed waste pug is introduced into the thermalization device to be subjected to high-temperature thermalization treatment, so that impurities such as plastic in the waste pug are combusted at high temperature and gasified into flue gas to be separated from the waste pug, and then the soil is improved through the soil mixing device; the waste pug in the construction waste is treated more sufficiently and environmentally friendly, and the recycling rate of the waste pug is high.
Owner:GUANGXI QINGHUI ENVIRONMENTAL PROTECTION TECH CO LTD
Construction method for connecting channels in water-rich areas of ultra-deep, unconsolidated strata with sea-land interaction
This invention provides a construction method for connecting tunnels in water-rich areas of ultra-deep, underconsolidated strata with sea-land interaction. The method is as follows: A closed rectangular or circular cement-soil mixing wall is constructed in the construction area of the connecting tunnel to pre-reinforce the soil, forming a continuous, seamless, low-permeability rigid water-stopping curtain; after the reinforced strata reach the predetermined reinforcement strength, freezing pipes are drilled from the adjacent faces of the two tunnels towards the construction area of the connecting tunnel, and freezing treatment is carried out on the construction area of the connecting tunnel; once the soil freezing condition meets the excavation requirements, the excavation of the connecting tunnel begins. This invention follows a strict sequence of "seepage interception first, then freezing," with the pre-reinforcement process acting as the "vanguard," its primary task being to create low-permeability boundary conditions; the freezing process, as the "main force," efficiently forms a pressure-bearing structure in the optimized environment, solving the problems of high energy consumption and uncertain effects of freezing under unlimited recharge boundaries.
Owner:CHINA RAILWAY 11TH BUREAU GRP CORP LTD +2
Early warning and adjusting method for mixing material ratio fluctuation of flow-state solidified soil
PendingCN120962858AMixing operation control apparatusIngredients proportioning apparatusSoil scienceSoil mixing
The invention provides a flow-state solidified soil mixing material ratio fluctuation early warning adjustment method, and belongs to the technical field of flow-state solidified soil construction.The method includes the steps that the input amount of each component is monitored in real time by building a material ratio fluctuation curve model, a material ratio stable interval is set to form an early warning value, material ratio abnormal points are recorded, and the material ratio fluctuation trend is calculated; applying a material ratio dynamic prediction equation set to analyze a historical change rule and predict a future trend, analyzing material ratio abnormal point relevance to carry out time sequence clustering, constructing a material ratio abnormal point and equipment start-stop relation model to reveal a fluctuation mechanism, calculating a material ratio fluctuation influence area to determine an influenced material range, and calculating the material ratio fluctuation influence area. And executing a material ratio fluctuation compensation program to automatically adjust the input amount of each component and guide fluctuating materials into a temporary storage area for treatment, and finally implementing material ratio recovery adjustment to gradually recover the input amount of each component to a standard value, so that the technical problem that the material ratio fluctuation is difficult to predict in real time and accurately regulate and control in the mixing process of the flow-state solidified soil in the prior art is solved.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD