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34 results about "Consolidation process" patented technology

Consolidation is the process in which reduction in volume takes place by expulsion of water under long-term static loads. When stress is applied to a soil that causes the soil particles to pack together more tightly.

Core-wall rockfill dam seepage consolidation multi-field coupling dynamic prediction method, device and equipment

The invention relates to the technical field of water conservancy geotechnical engineering, in particular to a core-wall rockfill dam seepage consolidation multi-field coupling dynamic prediction method, device and equipment, and the method comprises the steps: obtaining stress spatio-temporal data and material data in a core-wall rockfill dam seepage consolidation process; constructing a physical model of a seepage consolidation process in the core-wall rock-fill dam, a random field of a core-wall permeability coefficient and a compression modulus, and a prediction model of a combined random field, and constructing a loss function according to the physical model and the marked data; iteratively training the prediction model according to the stress spatio-temporal data and the material data, reversely iteratively updating the prediction model according to the loss function in the training process, and obtaining a trained prediction model after the training is completed; and predicting the seepage consolidation process of the core-wall rockfill dam by using the trained prediction model. Therefore, the problems that a finite element method and a deep learning method have certain limitations and are difficult to fit real monitoring data, so that a prediction result is inaccurate and the like in related technologies are solved.
Owner:WUHAN UNIV

Layered soft soil thermal drainage consolidation test method considering interface contact thermal resistance effect

The invention provides a layered soft soil thermal drainage consolidation test method considering an interface contact thermal resistance effect, which comprises the following steps: S11, filling layered soft soil into a soil sample box according to a design thickness layer by layer, laying a heat conduction film between layers, and connecting a heat flow meter; s12, applying a preset pressure to compact the soil body, starting the heating base, raising the temperature according to a set gradient, and synchronously monitoring the thermal resistance of each layer; s13, when the temperature reaches a set value, a vacuum pump is started to maintain the preset vacuum degree, the heating power is automatically adjusted through a control algorithm based on the real-time heat flow data, and the interface thermal resistance change is compensated; s14, synchronously acquiring temperature, pressure, vacuum degree and displacement data, and establishing a heat-water-force coupling model to invert interface thermal resistance parameters; and S2, based on the interface thermal resistance parameters obtained in S1, executing a thermal drainage consolidation test stage. The problems that in the prior art, due to the fact that the interface contact thermal resistance effect is not fully considered, heat conduction efficiency evaluation is deviated, and consolidation process prediction is inaccurate are solved.
Owner:ZHEJIANG SCI-TECH UNIV

Rapid soft foundation consolidation degree deduction method based on depth operator digital intelligent model

PendingCN121980653AQuick deductionAccurate deductionGeometric CADDesign optimisation/simulationSoil sciencePore water pressure
The invention relates to a depth operator digital intelligent model-based soft foundation consolidation degree rapid deduction method, which comprises the following steps of: obtaining soil layer thickness, layered structure, consolidation coefficient of each layer and drainage boundary condition of a soft soil foundation, and carrying out dimensionless processing on physical depth and physical time; generating a dimensionless consolidation coefficient field sample which changes along with the dimensionless depth, and dispersing the dimensionless consolidation coefficient field sample at a plurality of fixed depth positions; inputting the dimensionless time-depth coordinate into a backbone network of the physical information-depth operator network, inputting the consolidation coefficient discrete vector and the soil layer distribution parameter into a branch network of the physical information-depth operator network, and fusing the output of the backbone network and the output of the branch network to obtain an estimated value of the dimensionless hyperstatic pore water pressure; and training the physical information-depth operator network based on the physical information loss function to obtain a soft soil foundation consolidation prediction model. According to the method, rapid and accurate deduction of the consolidation process can be realized.
Owner:CHINA RAILWAY 12TH BUREAU GRP CO LTD +2

Verification method for deep soft soil roadbed construction through vacuum combined preloading treatment

The invention provides a verification method for construction of a deep soft soil roadbed through vacuum combined preloading treatment. The verification method comprises the steps that layered settlement, pore water pressure and load application data sequences are obtained through real-time monitoring, and multiple sets of simulated settlement sequences are generated based on layered settlement data and preset correction parameters. The monitored or simulated settlement sequence is combined with pore water pressure and load data for consolidation degree calculation, and an initial consolidation degree parameter of a target time node is obtained. And performing gradient calculation by using each initial parameter and the correction parameter, and determining a partial derivative matrix. And calculating the correction consolidation degree of the adjacent layered settlement parameters through a Taylor expansion truncation high-order term, and carrying out iterative calculation until all layered parameters are covered. And finally, constructing a three-dimensional consolidation verification model by combining the initial parameters, the corrected parameters and the corresponding monitoring data. According to the invention, three-dimensional dynamic verification of the consolidation process of the deep soft soil roadbed can be realized, and the precision and reliability of vacuum combined preloading construction are improved.
Owner:POWER CHINA KUNMING ENG CORP LTD

Method for joining at least two components

An in-situ thermoforming and (co-)consolidation process for joining two components together. An adaption of one of the components to the contour of the other component is done directly before a joining step with the other component in the same tooling by adapting process parameters such as heat and pressure. Also a stiffened component manufactured by such a method.
Owner:AIRBUS OPERATIONS GMBH +1

A dehydration and consolidation device for treating slurry with geotextile tube bags and its working method

The present invention discloses a dehydration and consolidation device for treating slurry with a geotextile tube bag, which includes a geotextile tube bag. A number of blind tubes are arranged along the length direction inside the geotextile tube bag. Both ends of the blind tubes extend out of the geotextile tube bag body. Both ends of the blind tubes are connected to one end of a branch pipeline through blind tube joints. The branch pipeline is connected to one end of a first main pipeline. A first valve is arranged on the first main pipeline. The other end of the first main pipeline is connected to an air compressor. The branch pipeline is connected to one end of a second main pipeline. A second valve is arranged on the second main pipeline. The other end of the second main pipeline is connected to a vacuum pump. The present invention also discloses a working method of the dehydration and consolidation device for treating slurry with a geotextile tube bag. The dehydration and consolidation device for treating slurry with a geotextile tube bag and its working method provided by the present invention effectively combine the pressurization and vacuum pumping methods and apply them at appropriate stages and time nodes during the dehydration and consolidation process of treating slurry with a geotextile tube bag, which can effectively promote the dehydration and consolidation speed of the slurry.
Owner:HOHAI UNIV

Testing device and method for simulating mine tailing slurry consolidation process and retaining wall stress

The invention relates to the technical field of mine solid waste filling, in particular to a test device and method for simulating the consolidation process of mine tailing slurry and the stress of a retaining wall. The test device comprises a frame assembly, a constant-temperature maintenance unit, an access unit, a retaining wall simulation unit, an automatic pressure control system and a data acquisition system, the constant-temperature maintenance unit and the automatic pressure control system are both arranged on the frame assembly, and the automatic pressure control system is connected with the constant-temperature maintenance unit; the access unit is communicated with the constant-temperature maintenance unit, and the retaining wall simulation unit is arranged on the access unit; and the data acquisition system is connected with the constant-temperature maintenance unit, the route unit and the automatic pressure control system. By means of the technical scheme, the stress change of the filling slurry and the stress borne by the filling retaining wall in the test process are collected and recorded, theoretical test parameters are provided for design of the mine filling retaining wall, research on the theory of the filling retaining wall and monitoring on the consolidation process of the filling slurry are facilitated, and therefore mine filling is better guided.
Owner:BEIJING MINING & METALLURGICAL TECH GRP CO LTD

A fill retaining wall

ActiveCN223608586UMaterial fill-upDrainageMechanical engineeringConsolidation process
The utility model relates to mining filling technical field discloses a kind of filling retaining wall, including multiple wall, filling structure and base, each wall includes wall body, first installation part and second installation part, the top of wall body is provided with first installation part, the bottom of wall body is provided with second installation part, filling cavity and drain are formed on wall body, drain is communicated with filling cavity, filling cavity is along the height direction of wall body and penetrates wall body, filling cavity is used to accommodate filling structure, multiple wall is sequentially arranged along up-down direction, the first installation part and second installation part of every adjacent two walls are connected with each other, the wall body of wall located at the bottom end of multiple wall is used to install on ground by base. Thus it is convenient to transport and on-site assembly of wall, the height and length of retaining wall can be flexibly adjusted according to actual needs. Drain makes free water in filling structure can be quickly discharged, so that the consolidation process of filling structure can be accelerated.
Owner:SICHUAN LIGENG ENVIRONMENTAL ENGINEERING CO LTD

Microbiological system for supporting the consolidation process of sand and / or sandy soils, method of its production, and method for supporting the consolidation process of sand and / or sandy soils

ActivePL249942B1SporangiumEdaphic
The application concerns a microbiological system supporting the consolidation of sand and sandy soils through biocementation, utilizing a mixture of bacteria from the Sporosarcina genus, including Sporosarcina sp. ANT_H38, deposited in the Polish Collection of Microorganisms (PCM) at the Institute of Immunology and Experimental Therapy of the Polish Academy of Sciences in Wrocław under number B / 00547, and Sporosarcina pasteurii DSM 33. The goal is to stabilize and strengthen soil structures through natural mineralization, which increases the substrate's load-bearing capacity. The process involves culturing the bacteria on LB medium, diluting them and combining them with urea, and then applying them to sand or soil with the addition of a cementing medium. The system also operates effectively at low temperatures, enabling broad applications in construction and environmental protection. The application also concerns a method for producing the microbiological system and a method for supporting the consolidation process of sand and / or sandy soils using this system.
Owner:UNIWERSYTET WARSZAWSKI +2

Multi-process integrated efficient exploitation method combining fracturing, exploitation and consolidation for hydrate reservoir

A multi-process integrated efficient exploitation method combining fracturing, exploitation and consolidation for a hydrate reservoir, comprising: arranging, in a production well, pressure-resistant pipes for fluid injection that are independent of each other (104); providing openings (201) and nozzles for fracturing, consolidation and exploitation on the production well; respectively connecting the nozzles for fracturing and consolidation to corresponding injection systems by means of the pipes in the well; injecting a prepared fracturing fluid into a hydrate reservoir (103) to form hydraulic fractures; exploiting the reservoir by means of the production well by using depressurization and other approaches; injecting a prepared consolidation agent into the post-exploitation reservoir for consolidation; and repeating the described steps to carry out multi-process integrated efficient exploitation combining fracturing, exploitation and consolidation on the reservoir. In the method, the permeability of the reservoir around the production well is improved by means of the fracturing process, and the stability of the reservoir is improved by means of the consolidation process; thus, multi-process integrated exploitation enhances both the efficiency and safety of the exploitation process, providing a novel multi-process integrated efficient exploitation method for safe and efficient exploitation of deep-sea natural gas hydrates.
Owner:ZHEJIANG UNIV

Large-size model sample continuous loading consolidation test device and method for earthen archaeological site construction process research

The invention discloses a large-size model sample continuous loading consolidation test device and method for earthen archaeological site construction process research. The device comprises a universal testing machine, a consolidation container, water head saturation equipment and a pore water pressure measurement system, a structural large-size sample is placed in the consolidation container; the universal testing machine is used for applying a vertical load with a constant rate to the structural large-size sample and recording vertical displacement, vertical stress and time; the water head saturation equipment is communicated with the interior of the consolidation container and is used for introducing distilled water into the consolidation container, and a water head saturates the structural large-size sample; and the pore water pressure measuring system is used for recording the change of the pore water pressure at the bottom of the sample in the consolidation process, and calculating and analyzing test data based on a CRS one-dimensional linear consolidation theory. The device solves the problems of difficulty in force application and long time consumption when a large-size sample is subjected to a consolidation test in a traditional geotechnical test, and is suitable for consolidation deformation test research of a model sample constructed by a process in the field of earthen ruins.
Owner:LANZHOU UNIV

A method and system for analyzing consolidation process of multi-pore geotechnical medium based on KAN

The application discloses a kind of based on KAN's multiple pore rock-soil medium consolidation process analysis method and system, belong to the field of soil consolidation analysis.This method includes: obtaining the data including time, depth and each pore system pore water pressure in the consolidation process of multiple pore rock-soil medium, establishes data set and carries out pre-processing;KAN is trained to obtain the control equation describing the consolidation process of multiple pore rock-soil medium by inversion;PiKAN based on physical information is constructed, the control equation and the initial condition and boundary condition of consolidation process are used as physical constraint, and embedded in loss function;PiKAN is trained using the pre-processed data set, and the pore water pressure of each pore system of multiple pore rock-soil medium at different times and depths is solved.The KAN based on physics and data driving can quickly and effectively obtain the pore water pressure of multiple pore rock-soil medium with less test data, and provide technical support for related engineering stability evaluation.
Owner:SHENZHEN UNIV

Suction type drainage pipe fitting

The utility model discloses a suction type drainage pipe fitting, and belongs to the technical field of soft soil foundation consolidation treatment. The suction type drainage pipe fitting comprises the filter body used for permeating water or / and gas in soil and the pipe body capable of sucking water or / and gas in the soil to form the suction type drainage pipe fitting, so that the filter cavity and the pipe body are arranged, on one hand, water or / and gas can be gathered, and on the other hand, the suction type drainage pipe fitting is formed; on the other hand, soil moisture or / and gas can be rapidly discharged, the drainage and exhaust effects are effectively improved, the soft soil foundation construction time is shortened, and application and popularization are facilitated. Furthermore, the suction type drainage pipe fitting can be used for direct vacuum suction drainage gas consolidation treatment of ultra-soft sludge, float sludge, sludge surface layers and sand-free cushion layers, the one-time suction area can reach 5-10 meters, the suction depth is 2-8 meters, the suction type drainage pipe fitting can replace on-site drainage plate connecting pipe construction, and the construction efficiency is effectively improved.
Owner:ZHEJIANG JIA YUAN CIVIL ENG CO LTD

KAN-based multi-pore rock-soil medium consolidation process analysis method and system

The invention discloses a KAN-based multi-pore rock-soil medium consolidation process analysis method and system, and belongs to the field of heaping consolidation analysis. The method comprises the following steps: acquiring data including time, depth and pore water pressure of each pore system in the consolidation process of the multi-pore rock-soil medium, establishing a data set and preprocessing the data set; training the KAN to obtain a control equation for describing the consolidation process of the multi-pore rock-soil medium through inversion; constructing a PiKAN based on physical information, and embedding a loss function by taking a control equation and initial conditions and boundary conditions of a consolidation process as physical constraints; and training the PiKAN by using the preprocessed data set, and solving the pore water pressure of each pore system of the multi-pore rock-soil medium at different time and depths. Based on the KAN driven by physics and data, the pore water pressure of the multi-pore rock-soil medium can be rapidly and effectively measured under the condition of less test data, and technical support is provided for related engineering stability evaluation.
Owner:SHENZHEN UNIV

Vacuum falling rain type high-saturation clay rapid sample preparation device and vacuum falling rain type high-saturation clay rapid sample preparation method

The invention belongs to the field of marine geotechnical engineering research, and provides a vacuum falling rain type high-saturation clay rapid sample preparation device and method. The sample preparation device comprises a slurry degassing device and a device for providing a high hydraulic gradient, and a test method for improving the sample preparation saturation and the sample preparation speed is designed in combination with the sample preparation device. The honeycomb degassing box in the slurry degassing device is connected with the top cover of the test box, so that the slurry can be effectively cut, gas entrained in the slurry can be released, the gas is dissipated, and the slurry saturation is remarkably improved. The device for providing the high hydraulic gradient is connected with the water tank and the test box through the air compressor, stable high pressure is provided and transmitted into the test box through water, the hydraulic gradient in slurry is improved, the consolidation process of clay samples is accelerated, and the sample preparation efficiency is improved. The sample preparation device is simple in structure, the operation method is convenient and fast, the high-saturation soil sample can be obtained only through one-time degassing treatment, and the sample preparation device is suitable for indoor model tests and other high-requirement sample preparation scenes.
Owner:DALIAN UNIV OF TECH

Drain board consolidation bearing capacity global evaluation method under digital construction

The invention provides a drainage plate consolidation bearing capacity global evaluation method under digital construction. The drainage plate consolidation bearing capacity global evaluation method comprises the following steps that drainage plate construction quality parameters are monitored in real time; a model is corrected based on the construction quality of the drain board; establishing a soil shear strength increment regression model; correcting the Terzahi formula based on the construction quality parameters of the drain board; predicting the consolidation bearing capacity of the drainage plate under real-time monitoring of construction quality; and carrying out global evaluation on the foundation consolidation bearing capacity. The method has the advantages that the construction quality, monitored in real time, of the drainage plate is directly associated with the foundation bearing capacity through the digital construction technology, the actual consolidation process of the soil body is reflected more accurately, and therefore the prediction precision of the consolidation bearing capacity is improved; the construction quality of the drainage plate is monitored in real time through the digital construction technology, the foundation bearing capacity at any position of the construction area of the drainage plate is predicted, global evaluation of the foundation bearing capacity is achieved, and the bearing capacity spatial anisotropy caused by the construction quality difference is accurately reflected.
Owner:POWERCHINA MUNICIPAL CONSTR GRP CO LTD +1

A soil body deposition consolidation and bidirectional permeability coefficient testing device

The application provides a soil body deposition consolidation and bidirectional permeability coefficient testing device, which comprises a soil sample cylinder for layered soil sample loading of tailing materials; a vertical loading system controlled by a measurement and control system, which is used for applying a vertical loading force to the soil sample in the soil sample cylinder, so that the axial force reaches a predetermined value to perform drainage consolidation of the soil sample; a water supply and water head control system; a vertical permeation water collecting and flow measuring device, which is used for receiving the water seeping out of the soil sample cylinder; a horizontal permeation test rotating system, which is used for cutting the soil sample in the soil sample cylinder to measure the horizontal permeability coefficient of the soil sample; and a horizontal permeation water collecting and flow measuring device, which is used for receiving the water seeping out of the soil sample in the horizontal permeation test rotating system. The application can realize one-dimensional deposition consolidation test of soil in the soil sample cylinder, realize simulation test of the deposition consolidation process of soil under the conditions of lateral stress state and different overburden loads, and simultaneously perform vertical and horizontal permeation tests, so as to provide more accurate parameters for stability analysis of tailing dams.
Owner:BENXI IRON & STEEL (GRP) MINING CO LTD

A method for calculating consolidation of ultra-soft soil at low stress level

PendingCN122263515ASolve the shortcoming of not considering the consolidation stage divisionHigh degree of fitDesign optimisation/simulationCAD numerical modellingSoil scienceStructural engineering
The present application aims at the problem of insufficient accuracy of consolidation calculation of ultra-soft soil under low stress level and difficulty in accurately reflecting its consolidation characteristics, and provides a consolidation calculation method of ultra-soft soil under low stress level. The method firstly determines the functional relationship between the void ratio and the permeability coefficient through the permeability test, then identifies the consolidation boundary point of the transformation of ultra-soft soil to ordinary soft soil through the consolidation test, establishes the segmented function relationship between the void ratio and the effective stress before and after the consolidation boundary point, and further obtains the segmented function relationship between the consolidation coefficient and the effective stress. Through the relevant calculation software or the relevant calculation program, the numerical simulation of the consolidation process of ultra-soft soil under low stress level can be realized by using the segmented function relationship between the consolidation coefficient and the effective stress and considering the change of the consolidation coefficient with the increase of the effective stress. The consolidation calculation method can reflect the consolidation deformation law of ultra-soft soil under low stress level, and can provide theoretical reference for the design and construction of ultra-soft soil foundation reinforcement engineering.
Owner:TIANJIN SURVEY & DESIGN INST FOR WATER TRANSPORT ENG CO LTD +1

An apparatus for making a chemical sand consolidation system consolidation body and method of use

ActiveCN114412455BFluid removalMechanical engineeringConsolidation process
The application discloses a device for making a chemical sand consolidation system consolidation body and a use method thereof, and the device comprises a fixing part, a pressurizing part, a sand filling part and a temperature and pressure control part; the device can be repeatedly used for many times, and the chemical sand consolidation system consolidation experiment simulation repetition rate is high; the device can solve the problem of the traditional glass tube sand filling method or sand mixing method that many factors influence the consolidation process, and the consolidation experiment simulation repeatability is poor; the consolidation process (sand filling, pressurizing, wetting, cementing and solidifying) of the device is continuous and uninterrupted, and the actual situation on site can be simulated; the device can solve the problem of the traditional glass tube sand filling method or sand mixing method that the consolidation process (sand filling, pressurizing, wetting, cementing and solidifying) is interrupted and discontinuous, and the actual situation on site cannot be simulated.
Owner:CNOOC ENERGY TECHNOLOGY & SERVICES LTD

A method for analyzing the anti-sliding stability of underconsolidated saturated fine-grained tailings dams

The present invention discloses a method for analyzing the anti-sliding stability of an under-consolidated saturated fine-grained tailings dam, which belongs to the field of tailings dam stability analysis. The tailings dam is loaded in stages from bottom to top, the consolidation coefficient remains unchanged, and the direction of water seepage is mainly vertical. In combination with the loading and consolidation laws of saturated fine-grained tailings dams, the Terzaghi one-dimensional seepage consolidation theory is modified. It is assumed that the consolidation coefficient remains unchanged during the drainage consolidation process, water seeps vertically or horizontally, and the loading is carried out in stages at a uniform speed. The consolidation degree of the staged loading is calculated layer by layer, and a weighted average is performed according to the staged loading amount to obtain a curve showing the relationship between the consolidation degree and the burial depth. The present invention divides the tailings dam into several vertical strips and analyzes the relationship between the strip consolidation degree and the elevation, thereby determining the spatial function of the shear strength of the under-consolidated tailings, thereby achieving a scientific and effective analysis of the anti-sliding stability of the under-consolidated saturated fine-grained tailings dam.
Owner:SINOSTEEL MAANSHAN INST OF MINING RES CO LTD

Highway subgrade gravel pile

The utility model discloses a highway subgrade gravel pile which comprises a foundation, a gravel pile body, a grouting mechanism and a drainage mechanism. After a plurality of mounting holes are formed in the foundation, gravel is filled into the mounting holes to form a gravel pile main body; the grouting mechanism comprises a grouting pipe and grouting holes, and after the grouting pipe is located in the center of the mounting hole, the grouting holes are evenly formed in the wall body and used for injecting cement paste reinforcing materials in the later period; and the drainage mechanisms are arranged between the adjacent groups of gravel pile main bodies and are used for accelerating drainage of water in the foundation. Compared with the prior art, the gravel pile has the advantages that high-quality gravel is adopted as a filling material, good drainage performance and high strength are ensured, and the reinforced nets are arranged at the top and the bottom of the gravel pile body, so that the tensile strength and the stability of the whole structure are improved; the vertical drainage plates are arranged between the adjacent gravel pile bodies, drainage of water in a foundation is accelerated, pore water pressure is reduced, and the consolidation process is accelerated.
Owner:AIJIAN XINDA ENG CONSULTING CO LTD

A method and system for designing the permeability of chemical sand consolidation layers in gas reservoirs

The present invention provides a method and system for determining the permeability of a chemical sand consolidation layer in a gas reservoir. The method solves a planar radial flow model in a permeability mutation formation according to the formation productivity retention rate and the assignment method, determines the relationship between the permeability of the sand consolidation layer and the sand consolidation radius, and then determines the designed permeability of the sand consolidation layer based on the relationship between the permeability of the sand consolidation layer and the sand consolidation radius and in combination with the sand consolidation radius designed for chemical sand consolidation. The determined permeability is used to guide the evaluation and construction of the chemical sand consolidation process, ensuring that the sand consolidation layer can maintain a reasonable permeability while meeting the sand control requirements, balancing the relationship between sand control and productivity, and ensuring the effectiveness of the subsequent implementation of chemical sand consolidation measures.
Owner:PETROCHINA CO LTD

A drainage plate with adjustable water flow and a method for adjusting

The application relates to the technical field of geotechnical engineering foundation treatment, in particular to a drainage plate with adjustable water flow and a regulating method. The drainage plate comprises a core plate, a filter membrane and a joint, the filter membrane wraps the periphery of the core plate, the core plate has at least two independently arranged drainage channels, the core plate comprises a rubber matrix and polyacrylic hydrogel dispersed in the rubber matrix, the rubber matrix is integrally shaped into a continuous drainage framework through a mold, and the polyacrylic hydrogel forms an interpenetrating network in the rubber matrix; the joint has switches matched with the number of the drainage channels, and the water outlet of each drainage channel is connected with one switch to adjust the water flow of the core plate. According to the scheme, the drainage capacity can be dynamically adjusted according to the foundation consolidation process through the design of adjustable water flow, the risk of filter membrane blockage is reduced, and the advantages of improved drainage efficiency, shortened foundation reinforcement period and ensured treatment effect stability are achieved.
Owner:CCCC FOURTH HARBOR ENG INST CO LTD +1

Method for dewatering and drying river and lake dredged sludge

The application discloses a kind of river and lake dredging sludge dewatering and drying method, the method is by constructing sludge disposal site to carry out solidification drainage, comprising: S1, constructing sludge disposal site with at least two dewatering and drying zones;S2, sludge water is sent to dewatering and drying zone from the import of dewatering and drying zone, sludge water is separated and clear water is generated in dewatering and drying zone, and clear water flows out from the water outlet of dewatering and drying zone;S3, the seepage water in the bottom mud layer is pumped out by using water pump group.The application increases the free settling time when dewatering and drying, ensures the clarification effect of sludge water reaching the water outlet, and improves the dewatering efficiency of clear water.In addition, by using the water pump to pump out the pore water in the silt during the consolidation process of the drainage pipe and the drainage ditch, the discharge of silt pore water is accelerated, and the dewatering and drying of the bottom mud is further accelerated.The sludge disposal site constructed by the application has two or more dewatering and drying zones, and the dewatering and drying zones can be converted, which further improves the dewatering and drying efficiency of the bottom mud.
Owner:河南省水利勘测设计研究有限公司

Device for water-gas separation measurement in unsaturated soil consolidation process

The utility model relates to a device for water-gas separation measurement in an unsaturated soil consolidation process. The device comprises a base, a pressure chamber and a vertical loading mechanism which are sequentially connected from bottom to top, the spiral line groove, the first three-way valve and the drainage measuring piece are communicated to form a drainage channel communicated with the soil sample containing space, and the first exhaust pipeline / second exhaust pipeline, the second three-way valve and the exhaust measuring piece are communicated to form an exhaust channel communicated with the soil sample containing space. The device has the beneficial effects that through the collaborative design of the base, the pressure chamber and the vertical loading mechanism, the spiral grooves of the upper and lower argil plates and the hydrophobic semi-permeable membrane exhaust pipelines are matched, water and gas discharged by consolidation of a soil sample are guided into the independent drainage and exhaust channels respectively, and the spiral grooves are combined with the water-permeable and air-impermeable characteristics of the argil plates to guide water to the drainage measuring piece; the hydrophobic semi-permeable membrane blocks moisture and only allows gas to enter the exhaust measuring piece through the exhaust pipeline, so that water-gas physical separation and synchronous accurate measurement are realized.
Owner:SUZHOU H C SOIL & WATER SCI & TECH CO LTD

A cofferdam preloading and consolidation device for soft soil foundation

This utility model discloses a cofferdam preloading reinforcement device for soft soil foundations, comprising a cofferdam, a sealing membrane, a vacuum device, a surcharge soil layer, a sand cushion layer, and a longitudinal drainage board. The cofferdam is fixed around the soft soil foundation and is ring-shaped. The sealing membrane is laid inside the cofferdam and at least completely covers the soft soil foundation within the cofferdam. The sand cushion layer is laid on the soft soil foundation within the cofferdam, and the surcharge soil layer is laid on the soft soil foundation within the cofferdam, with the sand cushion layer located below the surcharge soil layer. The sealing membrane is laid between or below the sand cushion layer and the surcharge soil layer. The vacuum device is connected to the longitudinal drainage board and is located outside the cofferdam. The longitudinal drainage board is vertically inserted into the soft soil foundation within the cofferdam and is located below the sand cushion layer. This utility model accelerates the drainage and consolidation process of the soft soil foundation, shortens the reinforcement time, and achieves better preloading effect.
Owner:CCCC FOURTH HARBOR ENG CO LTD

Pollutant migration real-time monitoring and feedback control system in contaminated soil consolidation process

The invention discloses a pollutant migration real-time monitoring and feedback control system in a contaminated soil consolidation process, which comprises a consolidation treatment module, a real-time monitoring module, an integrated control module and a feedback control module, and is characterized in that the consolidation treatment module comprises a consolidation container, a pressurization assembly and a drainage assembly, the drainage assembly is communicated with the bottom of the consolidation container, and the consolidation container is communicated with the real-time monitoring module; the real-time monitoring module comprises a soil internal pollutant concentration monitoring unit and a pore water pressure monitoring unit which are arranged in a layered mode according to the preset depth of a polluted soil body, the tail of the real-time monitoring module extends to the outer side along the inner wall of the container through a waterproof signal cable to be in wired connection with the integrated control module, and the integrated control module is used for receiving monitoring data and analyzing a comparison threshold value. And the feedback control module receives the instruction, linkage adjustment and consolidation processing module coordination are achieved, and closed-loop control is formed through coordination of all the modules. According to the invention, pollutant migration dynamic real-time capture and accurate linkage regulation and control of consolidation parameters can be realized, and the safety and effectiveness of consolidation repair of the polluted soil body are improved.
Owner:KUNMING UNIV OF SCI & TECH

A method for simulating the dynamic construction process of a geotechnical bag

The application provides a geotechnical bag dynamic construction process simulation method, and belongs to the technical field of hydraulic engineering. The method comprises the following steps: based on the topological structure of the geotechnical bag, a geotechnical bag construction process simulation model is constructed; a periodic slurry generation boundary is set to construct a calculation background network, a full-coupling simulation is performed to obtain a filling process simulation result, and the periodic slurry generation boundary is deleted; according to actual engineering conditions, the initial porosity and permeability coefficient of solid particles are obtained and updated to obtain a dynamic consolidation process simulation result; three-dimensional coordinate data of the bag particles are collected, surface reconstruction is used to obtain bag shape and tensile stress data, and the tensile strength margin is quantified to obtain geotechnical bag dynamic construction process simulation quantitative results. The application solves the problems that the existing geotechnical bag construction process simulation cannot determine the single filling height that the bag can withstand, the final shape and thickness distribution of the bag, and the problems of generated quality and engineering safety.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Indoor sampling model test device capable of being used for comparing disturbance degrees of soil samples

The utility model provides an indoor sampling model test device capable of being used for comparing disturbance degrees of soil samples, which relates to the technical field of civil engineering and comprises a shell which comprises a test base and a model groove. The sampler is arranged in the shell; the injection system is arranged on the shell, is connected with the sampler and is used for driving the sampler to move up and down and rotate; the consolidation loading system comprises a consolidation upper cover, a counter-force frame and consolidation oil cylinders, the consolidation upper cover is arranged at the top of the model tank, the sampler penetrates through the consolidation upper cover, the two consolidation oil cylinders are arranged at the inner top of the counter-force frame, the output ends of the two consolidation oil cylinders are connected with the top of the consolidation upper cover, and the output ends of the two consolidation oil cylinders are connected with the top of the counter-force frame. And the model groove is arranged on the test base and is positioned in the reaction frame. According to the utility model, the injection system is used for injecting the sampler into the soil body, and the pressure volume controller can control the back pressure of the soil body so as to simulate marine environments with different water depths on one hand, and can monitor the volume change of the soil body in the consolidation process on the other hand, so that indoor sampling model tests of different types of samplers can be implemented.
Owner:POWERCHINA HUADONG ENG CORP LTD +1

Vacuum preloading consolidation process monitoring method, device, equipment, system and medium

The invention relates to a vacuum preloading consolidation process monitoring method, device, equipment, system and medium, in particular to the technical field of foundation monitoring, a plurality of sensors are arranged on a to-be-monitored foundation to measure the ultra-static pore pressure and the radial consolidation degree in a soil body, a data acquisition module is started, and the data acquisition module is used for acquiring data of the to-be-monitored foundation; monitoring data from the sensor are received in real time and preliminarily processed, the processed monitoring data are transmitted to a remote monitoring center, the monitoring data are analyzed through an alarm module, whether the ultra-static pore pressure or the consolidation degree is abnormal or not is judged based on a preset threshold value, and a sound-light alarm signal is sent out when the ultra-static pore pressure or the consolidation degree is abnormal. According to the invention, the plurality of sensors are arranged, so that the ultra-static pore pressure and the radial consolidation degree in a soil body of a to-be-monitored foundation can be simultaneously acquired by using the plurality of sensors during use, and real-time alarm can be carried out in the monitoring process, so that the function of feeding back a monitoring result in real time is realized, and the flexibility is improved.
Owner:CHINA RAILWAY 20TH BUREAU GRP FIFTH ENG CO LTD +1