42 results about "Consolidation process" patented technology

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.

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.

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.

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.

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.

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.

The utility model belongs to the technical field of foundation treatment, and particularly relates to a soft soil foundation treatment device which comprises a support, a plurality of supporting rods and a plurality of supporting rods. The liquid discharging assembly is arranged on the assembling ring; the grouting assembly is arranged on the clamping sleeve and connected with the liquid drainage assembly through the conversion assembly, and the grouting assembly is used for solving the problems that after liquid in the soft soil foundation is pumped and drained through drainage equipment, grouting equipment is adopted for grouting the soft soil foundation, and different equipment needs to be switched in the whole drainage consolidation process, so that time is wasted, and the grouting efficiency is high. And the processing efficiency is not high.

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.

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.

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.

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.

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.

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.

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.

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.

The present invention relates to a method, device and medium for calculating the degree of consolidation of a soft clay foundation with high water content. The method comprises: obtaining basic parameters of a constitutive relationship of a target soil body; obtaining design parameters of a drainage board; obtaining load conditions of a target soil body; calculating a multiplication coefficient; and calculating the degree of consolidation based on an improved Barron algorithm, wherein in the improved Barron algorithm, the smearing effect design value in the Barron algorithm is corrected by a multiplication coefficient. The present invention takes into account the decrease in the unit body permeability coefficient caused by various factors during the consolidation process, and uses a multiplication coefficient to adjust the smearing effect constant to correct the degree of consolidation, thereby effectively reducing the error between the design estimated value and the actual value, being able to more accurately predict the degree of consolidation of the soil body, thereby improving the control preloading effect, and being conducive to the advancement of the project progress.

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.

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.

The invention discloses a device and a method for measuring change of a pore structure of a porous medium material in a one-dimensional consolidation process based on a spectrum induced polarization method, the device comprises a sample cylinder, the sample cylinder is internally provided with a loading transition cover, the loading transition cover accommodates a top electrode ring, and the loading transition cover is provided with a bottom electrode ring; a top porous force transfer plate is arranged at the upper part of the sample soil body, and a bottom porous force transfer plate is arranged at the lower part of the sample soil body; at least two pairs of electrode probes are arranged on two sides of the sample soil body; and the bottom electrode ring is arranged below the bottom porous force transfer plate, and the bottom electrode ring and the top electrode ring are coaxial and have the same size. The device provided by the invention can detect and monitor electrical signals in the soil consolidation process, can realize quantitative research on pore characteristic evolution in the soil deformation development process under the action of an external load, and provides reliable technical support for deeply exploring the relation between physical and mechanical properties and electrical properties of the soil.

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.

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.

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.

The thermal consolidation treatment device comprises an upper box body and a lower box body which are detachable, and a loading system, a heating system, a monitoring system, a drainage system and an automatic regulation and control device are arranged in the box bodies; the loading system comprises a settlement plate which is arranged at the top of the box body and can move up and down, a power device for applying a vertical load to the settlement plate, and a screwing device which is arranged in the lower box body and is used for applying a circumferential load to the slurry; the drainage system comprises a hollow transmission rod, and a suction device is connected between the screwing blade and the wall surface of the lower box body; the monitoring system comprises a displacement monitoring device and a plurality of pore pressure and temperature integrated sensors; the automatic regulation and control device is used for controlling the operation of the loading system and the heating system according to the value change of the pore pressure and temperature integrated sensor. Integrated automatic efficient thermal consolidation can be achieved, the consolidation efficiency and the data accuracy and stability in the consolidation process are effectively improved, and the purpose of stable and efficient consolidation treatment of waste slurry is achieved.

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.

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.

The utility model provides a lateral flexible wall consolidometer, which comprises a rigid sleeve, a flexible film, an inner sleeve and a displacement monitoring device, and is characterized in that the inner sleeve comprises an upper annular cylinder, a lower annular cylinder and a screw rod; the rigid sleeve comprises a connector and a through hole. The flexible film is positioned in the middle of the rigid sleeve and sleeves the outer wall surfaces of the upper and lower annular cylinders; and the screw rod is fixed in the middle of the upper-lower annular cylinder. A displacement monitoring device is installed in the middle of the rigid sleeve, and a telescopic head of the displacement monitoring device makes contact with the flexible film and is used for measuring horizontal deformation of the flexible film. The device disclosed by the utility model can measure the lateral pressure of a soil sample while consolidating, can solve the problem of errors caused by rigidity difference in a traditional measurement method, improves the accuracy of a test result, and has an irreplaceable effect on analyzing the mechanical property of a soil material and predicting consolidation parameters. Through actual measurement and comparison, the device can improve the precision of the lateral force measurement result of the soil sample in the consolidation process by about 45%, and has very important practical significance and application value.

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.

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.

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.

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.