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62 results about "Ground settlement" patented technology

Ground settlement. Lowering of the ground surface, known as subsidence or settling, often occurs during an earthquake. Common causes of ground subsidence during an earthquake include consolidation or failure of the ground under a foundation, densification of sand and gravel layers due to the ground shaking and liquefaction. Settlement caused by...

Shield tunneling parameter intelligent optimization method and system based on AI big language model

The invention provides a shield tunneling parameter intelligent optimization method and system based on an AI big language model, and relates to the technical field of tunnel construction optimization. Comprising the following steps: training an open source large model to obtain a preliminary shield tunnel construction industry large model; an upstream task and a downstream task which are relatively independent are set, and the upstream task comprises a tunneling speed prediction module, a tool wear prediction module, a ground surface settlement prediction module and a tunneling attitude prediction module; a downstream task combines an RAG technology and an NSGA-III multi-objective optimization framework, four prediction modules and an energy consumption calculation formula serve as objective functions, the value range of constraint conditions is determined, a tunneling parameter optimization module is established, a professional shield tunnel construction industry large model is formed, and scientific and intelligent decision making of tunneling parameters is achieved. According to the method, information in multiple aspects can be comprehensively considered during decision making, the reasoning process is output, and scientificity, comprehensiveness and reliability of decision making are ensured.
Owner:SHANDONG UNIV (QIHE) INST OF NEW MATERIALS & INTELLIGENT EQUIP +1

Settling funnel hydraulic gradient driven water replenishing ore dissolving salt lake brine mining method and system

The invention discloses a salt lake brine mining method and system for hydraulically gradient-driven water replenishing and ore dissolving of a sedimentation funnel, and relates to the technical field of salt lake mineral resource development, the method comprises the following steps: S1, collecting water level data of a sedimentation funnel area, calculating gradient distribution, dividing functional areas, and generating zoning parameters; s2, based on the partition parameters, a water injection well network is arranged in the gradient direction, water injection parameters are determined according to the water level difference, and a well network scheme is generated; s3, based on a well pattern scheme, injecting the proportioning solvent into an ore bed in a layered manner to form a directional seepage field, and generating solute transport data; s4, on the basis of solute transport data, enriched brine is extracted in the collection area, the concentration is monitored, and brine parameters are generated; and S5, based on the deviation between the brine parameter and the target value, calculating the regulation amount, adjusting the injection-production parameter to maintain dynamic balance, and outputting the salt lake brine with the target concentration. By regulating and controlling the hydraulic gradient, the form of the settlement funnel is stabilized, the phenomena of stratum disturbance and ground settlement are reduced, and the ecological risk is reduced.
Owner:QINGHAI CITIC GUOAN SCI & TECH DEV CO LTD

Filling laying device for anti-settling plant foundation construction

The application discloses a filling and paving device for preventing settlement of a factory building foundation, and relates to the field of foundation paving. The device solves the problem that the existing filling and paving device has a large roller size and is difficult to detect and fill local settlement. The device comprises a vehicle body, a storage box, a filling mechanism and a compaction mechanism. The filling mechanism comprises a compaction roller, a conveying screw and a control member. The bottom of the storage box is fixedly connected with a plurality of output grooves. The device controls the ground settlement state of the compaction roller in the rolling sensing area on the ground through the filling mechanism, and controls the output state of the filling material and the rotating speed of the conveying screw in parallel, so that the output rate of the filling material is faster at the position with a larger ground settlement amplitude. The control member controls the lifting of the compaction roller to control the compaction strength. The ground before detection and the ground after filling are compacted respectively through the compaction mechanism, the ground is kept flat, and the strength of the ground after filling is improved.
Owner:CHINA CONSTR FIFTH ENG DIV CORP LTD +1

Subway tunnel settlement rapid detection device based on laser radar

The utility model discloses a subway tunnel settlement rapid detection device based on a laser radar, belongs to the technical field of ground settlement detection, and solves the problems that an existing device is inconvenient to adjust the measurement position, is inconvenient to directly obtain the result of whether a tunnel settles or not, and is troublesome to use, the subway tunnel settlement rapid detection device comprises a bottom plate, and the top surface of the bottom plate is provided with a rotating plate; a detection assembly is arranged on the bottom plate and the rotating plate, connecting plates are fixedly mounted on the front side and the rear side of the top face of the left end of the bottom plate, a rotating rod is fixedly mounted on the side wall of the mounting groove, and the end, away from the rotating plate, of the rotating rod is rotatably mounted on the side wall of the connecting plate; the distance between the rotating plate and the first laser radar is measured through the first laser radar, meanwhile, the distance between the bottom face of the rotating plate and the second laser radar is measured through the second laser radar, corresponding numerical values are displayed through the first display screen and the second display screen, and if the numerical values displayed by the first display screen and the second display screen are inconsistent, the conclusion that the bottom face of the tunnel is partially settled can be obtained.
Owner:CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP 2ND ENG CO LTD

Construction deformation prediction method and device, electronic equipment and storage medium

The invention provides a construction deformation prediction method and device, electronic equipment and a storage medium, and belongs to the technical field of data prediction, and the method comprises the steps: obtaining historical working condition parameters of a subway tunnel construction process; constructing a regularization item related to a sample point feature space; determining a decision tree splitting criterion based on a regularization item, recursively dividing each feature in the sample point feature space into non-overlapping hyperrectangular regions, and constructing a decision tree; calculating a posterior probability distribution parameter of each leaf node in the decision tree based on a Bayesian inference updating rule; defining a structure risk penalty function in combination with the posterior probability distribution parameters to perform post pruning on the decision tree to obtain an optimal decision tree; real-time geological exploration parameters and real-time shield tunneling machine tunneling parameters in the subway tunnel construction process are collected; and real-time geological exploration parameters and real-time shield tunneling machine tunneling parameters are input into the optimal decision tree, and a monitoring point ground settlement prediction interval is output, so that the deformation prediction accuracy under the complex geological condition is effectively improved.
Owner:CHINA FIRST HIGHWAY ENGINEERING CO LTD +2

A collapsible loess ground settlement monitoring device

The application discloses a kind of for collapsible loess foundation settlement monitoring device, it is related to foundation settlement monitoring technical field, including base and the reference cylinder being set to base one side, the top of the base is fixedly connected with cover by bolt, the top of the cover is connected with top seat by bolt, the inside of the cover is provided with monitoring rod, the circumference of the monitoring rod is slidably connected with float;The inside of the cover is provided with expansion assembly, the top of the top seat is provided with exhaust assembly, the inside of the base is fixedly connected with circuit board, the circumference outer wall of the base is respectively provided with first docking pipe and plug, one end of the first docking pipe is fixedly connected with connecting pipe.The application effectively avoids the problem of measurement interruption caused by liquid level being too high to exceed the initial monitoring range of float, realizes the dynamic improvement of the monitoring range of the whole settlement monitoring device, meets the monitoring demand of people to collapsible loess foundation settlement.
Owner:LANZHOU RESOURCES & ENVIRONMENT VOC TECH COLLEGE

A time-effect analysis method for ground surface settlement induced by foundation pit excavation in soft clay area

ActiveCN116502518BOvercoming the problem of unsafe predictionOvercome the inability to account for soil time effectsDesign optimisation/simulationComplex mathematical operationsSoft claySoil parameters
The present application relates to the field of ground settlement prediction, and provides a time effect analysis method for ground settlement induced by foundation pit excavation in soft clay area, comprising: determining the time required for foundation pit construction under all working conditions and the retaining wall side displacement curve; determining the soil parameters according to the Boltzmann viscoelastic foundation model; obtaining the viscous settlement of all working conditions by using the Boltzmann viscoelastic foundation model; setting t=0 and the boundary condition as the retaining wall side displacement curve of all working conditions to obtain the elastic settlement under different working conditions; setting the boundary condition as the retaining wall side displacement curve when the bottom plate strength is formed to obtain the viscous settlement of the soil outside the pit after the bottom plate strength is formed; and summing the elastic and viscous settlement to obtain the ground settlement of the to-be-solved arbitrary working condition. The present application overcomes the problem that the existing theoretical method cannot consider the time effect of the soil, thereby leading to the problem that the prediction of the ground settlement is not safe, and also considers the ground settlement after the bottom plate strength is formed without depending on the retaining wall side displacement, which is more engineering significant and has good popularization and application value.
Owner:HOHAI UNIV +1

Measuring device for foundation settlement detection

The utility model discloses a measuring device for foundation settlement detection, which comprises a fixed bottom plate, a rotating base is fixedly mounted at the top of the fixed bottom plate, mounting bolts are in threaded connection with four corners of the fixed bottom plate, a connecting sleeve is rotatably connected in the rotating base, a positioning groove is formed in the outer side wall of the connecting sleeve, and the positioning groove is in threaded connection with the mounting bolts. A groove is formed in the end of the positioning groove, a supporting vertical rod is inserted into the connecting sleeve, a positioning screw is in threaded connection with the outer side of the bottom end of the supporting vertical rod, a comparison assembly is movably connected into the supporting vertical rod, and a mounting assembly is fixedly connected to the top end of the supporting vertical rod. According to the device, the rotatable rotating base and the connecting sleeve are designed, so that the device can rotate, the angle of the device can be adjusted according to the actual detection situation, angle deviation and settlement data of the device installed on a pre-buried point position can be visually observed, and the device is convenient to use and high in practicability. And a more accurate detection result is obtained.
Owner:Longgang Municipal Agriculture and Rural Affairs Bureau +2

Radiation-proof building structure with sedimentation joint and construction method thereof

ActiveCN116677090BRadiation leakageArchitectural engineering
The application relates to a radiation-proof building structure containing settlement joints and a construction method thereof, and relates to the technical field of radiation-proof building construction. The radiation-proof building structure containing settlement joints comprises two support plates, a plurality of outer wall bodies located between the two support plates, and all the outer wall bodies are sequentially arranged in a head-tail connection mode along the circumferential direction of the support plates. The outer wall bodies are connected with each support plate. The outer wall bodies are provided with wall surface settlement joints, the support plates are provided with ground surface settlement joints, the ground surface settlement joints and the wall surface settlement joints are connected with each other, the upper surfaces of the support plates are provided with ground surface radiation-proof layers and ground surface radiation-proof expansion devices covering the ground surface settlement joints, and the surfaces of the outer wall bodies are provided with wall surface radiation-proof layers and wall surface radiation-proof expansion devices covering the wall surface settlement joints. The wall surface radiation-proof expansion devices can automatically expand and contract to cover the wall surface settlement joints at all times, the ground surface radiation-proof expansion devices can automatically expand and contract to cover the ground surface settlement joints at all times, and therefore the possibility of radiation leakage to the outside is reduced.
Owner:NANTONG TONGBO EQUIP INSTALLATION ENG CO LTD

A method for longitudinal deformation and stress analysis of rectangular jacking pipes passing under existing pressure pipelines

This invention relates to the field of underground engineering structural safety assessment methods, providing a method for analyzing the longitudinal deformation and stress of rectangular pipe jacking under existing pressure pipelines. The method includes: establishing a simplified mechanical model of the pressure pipeline; establishing a prediction model for ground settlement caused by the rectangular pipe jacking by modifying the Peck empirical formula, and establishing an analytical relationship between the vertical displacement of the pipeline and the free displacement of the soil; solving the longitudinal displacement field of the pipeline caused by the new rectangular pipe jacking under the pipeline based on the displacement compatibility equation; and applying the Mises stress criterion to calculate the composite stress state of the pipeline, thereby achieving a pipeline stress safety assessment. This invention proposes a calculation method considering the coupling of internal pressure, pipeline, and soil, and theoretically establishes a quantitative relationship between displacement and stress of municipal pipelines caused by the new rectangular pipe jacking under the pipeline. This method can consider the influence of internal forces in municipal pipelines, providing a reliable theoretical method for the safety assessment of rectangular pipe jacking under municipal pressure pipelines.
Owner:CHINA COAL NO 3 CONSTR (GRP) CORP LTD +1

Beam-on-beam construction technology suitable for limited urban road construction space

The invention relates to a construction process for erecting beams on beams in limited urban road construction space, which comprises the following steps of: installing at least two temporary supports at a continuous end of a T-shaped beam hoisting position, and installing a permanent support on a padstone at the top of a pier; sequentially hoisting the (1-n) th T beam on the temporary supports and the permanent supports along the direction gradually approaching the beam conveying channel, n being greater than or equal to 2, and carrying out temporary supporting after hoisting is completed; the crane is transferred to a bridge floor formed by the (1-n) th T beam, the (n + 1)-m th T beam continues to be hoisted, m is larger than or equal to n + 1, and temporary supporting is selectively conducted after hoisting is completed; and wet joint steel bar welding construction of the (1-m) th T-beam is completed, and construction machinery retreating and follow-up structure construction are organized according to a standard program. According to the method, the T-shaped beam is arranged to be a method of erecting the beam on the beam, beam erecting can be completed in a narrow space without a hoisting site or under the special working conditions of an existing pipeline protection area and the like, the influence on traffic is reduced, and meanwhile the problems of soft foundation settlement and the like are solved.
Owner:ZHEJIANG COMM CONSTR GRP CO LTD

Well lid structure convenient to maintain

The invention discloses a well lid structure convenient to maintain, which comprises a well body seat, and a connecting mechanism is mounted on the well body seat and is used for being connected with the well body seat. The connecting mechanism comprises a pressing cylinder slidably connected with the interior of the well body base, at least one step edge is machined on the pressing cylinder, the lowest point of the step edge is fixedly connected with an inserting piece, and a clamping assembly is installed at the bottom end of the step edge. According to the well lid structure convenient to maintain, when a height difference is generated between the well lid and the ground due to uneven settlement of the ground or change of surrounding soil texture, maintenance personnel do not need to carry out tedious operation like a traditional mode, and due to the fact that a pressing cylinder is matched with a step supporting block through a step edge and an inserting piece, the maintenance efficiency is improved; maintenance personnel only need to lift the pressing cylinder upwards, reselect the stepped supporting block inserting groove with the appropriate height according to actual needs and insert the inserting piece into the stepped supporting block inserting groove, and then height adjustment can be rapidly completed.
Owner:王海军

Ground settlement compensation method for soft rock tunnel

ActiveCN121273402BSolve the problem of uneven settlementimprove securitySoil scienceRock tunnel
The application discloses a surface subsidence compensation method for soft rock tunnels and relates to the technical field of soft rock tunnel construction, wherein the surface subsidence compensation method for soft rock tunnels comprises the following steps: according to the geological conditions of soft rock in a soft rock tunnel, the section of the soft rock tunnel is divided into a plurality of excavation units; a quantitative relationship model of the excavation units and surface subsidence areas is established; the excavation result is predicted according to the quantitative relationship model, and the excavation sequence is obtained according to the prediction result; each excavation unit is excavated according to the excavation sequence, dynamic pressure balance compensation is implemented, and an excavation part is formed; the surface subsidence area corresponding to the excavation part is gradually backfilled and solidified, and the surface subsidence compensation of the soft rock tunnel is completed. Through the division of the excavation units with uniform geological conditions and the establishment of the quantitative relationship model, the dynamic pressure balance compensation and the layered backfilling and solidification technology are combined, the solidification effect of the surface subsidence position of the soft rock tunnel is improved, and the safety of the soft rock tunnel is improved.
Owner:CHINA RAILWAY 20TH BUREAU GROUP CO LTD

Intelligent prediction method for ground settlement considering unquantifiable parameters of shield tunneling

PendingCN122334000AAlgorithmEngineering
This invention relates to the field of tunnel boring machine (TBM) construction technology and discloses an intelligent prediction method for surface settlement considering unquantifiable parameters during TBM tunneling. The method includes: selecting a main cross-section to be predicted and historical auxiliary cross-sections with approximate unquantifiable parameters based on spatial proximity; constructing a dual-branch joint architecture for the main and auxiliary cross-sections, and training it using a neural network with shared network weights through deep learning to obtain an intelligent prediction model for surface settlement; and obtaining predicted settlement data for the main cross-section based on the intelligent prediction model. By constructing a dual-branch joint architecture for the main and auxiliary cross-sections and using deep learning with shared network weights, an intelligent prediction model for surface settlement with good generalization ability is obtained. This indirectly considers unquantifiable parameters and uses reverse reasoning to obtain accurate predicted surface settlement data, improving the predictability and safety of TBM construction.
Owner:HEFEI UNIV OF TECH

Simulation test detection method for whole insertion and extraction process of steel sheet pile

The invention belongs to the field of underground engineering, and particularly relates to a simulation test detection method for the whole insertion and extraction process of a steel sheet pile. The simulation device is manufactured, a soil layer of a certain depth unit is laid in a model box of the simulation device, the steel sheet pile inserting and driving condition at any stratum depth can be effectively simulated through stacking and loading, quantitative indexes before and after steel sheet pile inserting and driving are established, and the disturbance condition of inserting and driving on a soil body is effectively represented; and the recovery rate indexes and the comprehensive treatment evaluation indexes of the disturbed area and the undisturbed area are established, so that the comprehensive evaluation of the treatment effect is realized, an objective evaluation system based on core quantitative indexes such as soil compactness change, ground settlement (displacement), strength and the like is established, and the limitation brought by traditional single dependence on qualitative analysis is overcome.
Owner:JINAN URBAN CONSTRUCTION GROUP CO LTD +2

A ground settlement device for simulating well flow stratified pumping

This utility model relates to the field of land settlement simulation technology, and discloses a land settlement device for simulating well flow stratified pumping, including a model box, an injection pipe, a pumping pipe, a water pump, a pressure measuring pipe, an earth pressure sensor, and a pore pressure sensor. The model box is cylindrical and is filled with alternating layers of clay and sand. A pumping pipe is installed along the central axis of the model box, and the injection pipe extends into it from the outside to the inside circumferentially. The pumping pipe has a multi-layered casing structure, with sealing airbags between the casings. The inner casing extends to a deeper sand layer, and the outer casing extends to a shallower sand layer. The pressure measuring pipe is installed within the depth range of each of the multiple sand-filled layers. Each casing of the injection pipe is connected to a water pump. Earth pressure sensors and pore pressure sensors are uniformly and symmetrically arranged inside the model box. This utility model aims to construct a geotechnical test chamber and simulate the radial flow field characteristics of a pumping well point through stratified pumping control, providing support for water-based well drilling projects.
Owner:CHANGAN UNIV

Track deformation online monitoring method and system based on image recognition

The invention discloses a track deformation online monitoring method and system based on image recognition, and relates to the technical field of image recognition, and the method comprises the steps: collecting and constructing a visible light image sequence and an infrared thermal imaging image sequence; respectively identifying and tracking displacement changes of the track reference feature points and the roadbed reference feature points, and calculating to obtain a track structure deformation quantity and a foundation settlement quantity; infrared temperature abnormal characteristics of an interface area between the ballastless track plate and a lower supporting layer are recognized, and interlayer crack quantitative data are obtained through calculation; based on the track deformation evaluation model, obtaining a comprehensive track deformation quantized value; a deformation safety level is generated through mapping, and a track deformation monitoring report is generated in combination with track structure deformation quantity, foundation settlement quantity and interlayer crack quantitative data. The technical problems that an existing track deformation monitoring method is low in inspection efficiency, high in subjectivity, incapable of achieving real-time dynamic monitoring and difficult to capture hidden defects are solved.
Owner:SHAANXI TRANSPORTATION VOCATIONAL & TECH COLLEGE

Beidou-based coal mining subsidence area photovoltaic support monitoring device

The utility model discloses a coal mining subsidence area photovoltaic support monitoring device based on Beidou, comprising a photovoltaic support erected on the ground, the high end of the photovoltaic support supports a photovoltaic panel, and the bottom end of the photovoltaic support is provided with a GNSS acquisition instrument; a static force level gauge is arranged at the high end of the photovoltaic support, and pile foundation differential settlement information caused by ground settlement of the photovoltaic support is collected; the Beidou short message communication module is used for assisting data transmission acquired by the static leveling instrument; and the system further comprises a user terminal control module. The beneficial effects are that operation and maintenance personnel can conveniently monitor the deformation condition of the photovoltaic support in a coal mining subsidence area and the surface collapse condition, complete period monitoring is carried out on the surface collapse, a fixed support can be repaired in time, and damage to the support and a photovoltaic assembly caused by excessive deformation of the photovoltaic support due to excessive surface subsidence is avoided.
Owner:SCEGC EQUIP INSTALLATION GRP NEW ENERGY CO LTD +1

A slurry balance shield model test system and a settlement monitoring method

The present application discloses a slurry balance shield model test system and a settlement monitoring method, which comprises a model soil box mechanism filled with in-situ soil and accommodating a slurry balance shield model mechanism for simulating the surface environment; the slurry balance shield model mechanism has a cutter head, the back side of the cutter head is provided with a slurry tank and a gas tank separated by a partition plate and connected to each other, and the cutter head is connected to a thrust system; the slurry circulating mechanism comprises a slurry inlet pipe facing the cutter head side and connected to a slurry tank, a slurry outlet pipe facing the cutter head side and connected to a measuring cylinder, and a slurry pump and a flow meter arranged on the slurry inlet pipe; the monitoring mechanism comprises a sensor and a data acquisition instrument connected to each other. Through the model test, the double-tank slurry shield balance system maintains the stability of the excavation face; through the orthogonal test design, the formation mechanism of the mud film in the slurry shield and the matching mechanism of the slurry shield and the stratum characteristics are understood by the engineering site, thereby providing a theoretical basis for ground settlement control in actual engineering.
Owner:POWERCHINA HUADONG ENG CORP LTD

Assessment of building damages under different ground settlement movements using mt-insar monitoring technique

PendingUS20260098960A1Radio wave reradiation/reflectionInterferometric synthetic aperture radarEngineering
A Multi-temporal Interferometric Synthetic Aperture Radar method for jointly detecting persistent scatterers (PSs) and distributed scatterers (DSs) is provided. The method includes in a first-tier network, selecting a plurality of PSs if a value of temporal coherence of the PS is larger than a first predetermined threshold; performing beamforming and M-estimator to enhance robustness of parameter estimation; in a second-tier network, identifying new PSs from the plurality of PSs by performing same prior steps; continuously updating the network based on the newly selected PSs until the value of the temporal coherence is smaller than the first predetermined threshold; performing coherence-weight phase-linking to reconstruct optimal phases for detection of a distributed scatterer (DS); and identifying that a pixel is a DS if the temporal coherence is greater than a second predetermined threshold based on the reconstructed optimal phases. The method can be applied to assessment of building damages under different ground settlement movements.
Owner:THE CHINESE UNIVERSITY OF HONG KONG

Dynamic compaction construction quality intelligent monitoring method and system based on multi-source data fusion

The invention provides a dynamic compaction construction quality intelligent monitoring method and system based on multi-source data fusion. According to the method, multi-source data such as Beidou positioning and orientation, winch Hall sensing and rammer tension sensing are integrated, firstly, a dynamic base line formed by double Beidou antennas is used for resolving the pitch angle and settlement of a machine body in real time, dynamic deformation compensation is conducted on a ramming settlement measured value, and the real ground ramming settlement is obtained; cross validation and self-diagnosis are carried out on drop distance measurement through multi-sensor data, and fault indication and data compensation are carried out in case of abnormality; and finally, on the basis of the compensated real compaction settlement and compaction energy, the change of the unit energy consumption ratio is calculated and monitored in real time, so that construction abnormity is diagnosed, and early warning is triggered. The corresponding system comprises a Beidou subsystem, a winch monitoring subsystem, a rammer state monitoring subsystem, a data processing and control subsystem and the like. According to the invention, the monitoring precision, reliability and intelligent level of the dynamic compaction construction process are effectively improved, and the conversion from experience construction to data-driven intelligent control is realized.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Linear engineering settlement analysis method and system based on settlement monitoring data

The invention relates to the technical field of ground subsidence monitoring analysis, and particularly discloses a linear engineering subsidence analysis method and system based on subsidence monitoring data, and the system comprises a data acquisition and processing unit, a data analysis and extraction unit and a subsidence graph drawing unit, data standardization is realized through abnormal value processing and correction; the intermediate unit is used for matching and superposing the standardized data and a web map coordinate to generate a settlement distribution diagram, and providing a linear engineering routing drawing and buffer area setting window; and the latter extracts settlement data in the buffer area, and generates a histogram or a line graph by taking the length of the routing line or the section line as an abscissa and the settlement amount as an ordinate. The settlement change is visually and quantitatively displayed at the Web end, support is provided for engineering planning and site selection, settlement early warning and risk prevention and control are assisted, and the monitoring and analysis capability is improved.
Owner:中国地质环境监测院(自然资源部地质灾害技术指导中心)

Real-time monitoring device for creep deformation of pile foundation in offshore soft soil field

The utility model discloses an offshore soft soil field pile foundation creep real-time monitoring device which comprises a supporting table, a supporting column is fixedly connected to the bottom of the supporting table, connecting rods are fixedly connected to the two sides of the top of the supporting table, a cross beam is fixedly connected to the top between the connecting rods, and a plurality of monitoring sensing devices are arranged on the cross beam. The three-axis tilt angle sensor and the laser range finder are arranged on the cross beam of the device, the tilt angle change value between the pile foundations is monitored in real time, then differential settlement between the pile foundations is simply and rapidly calculated, and the pile foundation-ground settlement change value can be monitored in real time; the three-axis tilt angle sensor and the laser range finder are easy to arrange and operate, data are uploaded to the cloud end in real time, compared with a traditional monitoring method, manpower and material resources are greatly saved, and the three-axis tilt angle sensor has high adaptability and can meet the measurement requirements under various complex environment conditions, such as high temperature, high humidity and a strong magnetic field.
Owner:CHINA RAILWAY 14TH BUREAU GROUP EQUIPMENT CO LTD +1

Construction deformation prediction method and device, electronic equipment and storage medium

The application provides a construction deformation prediction method and device, electronic equipment and storage medium, and belongs to the technical field of data prediction. The method comprises the following steps: acquiring historical working condition parameters of a subway tunnel construction process; constructing a regularization term about a sample point feature space; determining a decision tree split criterion based on the regularization term, recursively dividing each feature in the sample point feature space into mutually non-overlapping hyper-rectangular regions, and constructing a decision tree; calculating posterior probability distribution parameters of each leaf node in the decision tree based on a Bayesian inference update rule; defining a structural risk penalty function in combination with the posterior probability distribution parameters to perform post-pruning on the decision tree, and obtaining an optimal decision tree; collecting real-time geological exploration parameters and real-time shield tunneling parameters of the subway tunnel construction process; inputting the real-time geological exploration parameters and the real-time shield tunneling parameters into the optimal decision tree, and outputting a monitoring point ground settlement prediction interval, thereby effectively improving the deformation prediction accuracy under complex geological conditions.
Owner:CHINA FIRST HIGHWAY ENGINEERING CO LTD +2

Adjustable settlement deformation well lid

ActiveCN224092572URealize the function of automatic height adjustmentImprove flatnessArtificial islandsSewerage structuresLap jointGround settlement
The utility model discloses an adjustable settlement deformation well lid which comprises a lap joint structure, a rotating shaft structure and a positioning structure, wherein the lap joint structure is installed on the inner side of a well lid frame and used for erecting a well lid body, the rotating shaft structure enables a well lid structure to achieve lifting adjustment in the well lid frame, and the positioning structure is used for locking the well lid body after the well lid body is covered. When the well lid is used and the well lid body is higher than the surrounding ground due to settlement of the ground, a cross screwdriver or an electric drill is used for rotating a first screw rod through a first cross hole to enable a first lifting block to slide downwards in a first lifting groove, so that a step of a lap joint structure slides downwards, and meanwhile, a second screw rod is rotated through a second cross hole to enable the first lifting block to slide downwards. And the second lifting block and the rotating shaft slide downwards, so that the whole well lid body is driven to descend until the well lid body is lower than the surrounding ground, the function that the height of the well lid is automatically adjusted along with ground subsidence is achieved, potential safety hazards caused by the fact that the well lid protrudes out of the ground are effectively avoided, and the road flatness and the safety of pedestrians and vehicles are improved.
Owner:WUHAN JIAWEI TONGCHUANG TECHNOLOGY CONSULTING CO LTD

Multi-point settlement monitoring system, monitoring device and method for vibration test bed

PendingCN122108050Aavoid safety accidentsSolve the problem of settlement monitoringHeight/levelling measurementIsolatorMonitoring system
The application provides a vibration test bed multi-point settlement monitoring system, a monitoring device and a method, and relates to the field of settlement monitoring, and comprises a laser, a reflector and a settlement warning device; the laser is arranged on a foundation detection pile and is used for emitting multiple collimated lasers; the reflector is arranged as multiple along the side wall of one side of the vibration test bed and is used for reflecting at least one collimated laser to the vicinity of the support foundation arranged in lines; the settlement warning device is arranged on the support foundation and is used for collecting the collimated laser signal; when the settlement occurs and the collimated laser cannot be collected, a signal is sent. The application can continuously monitor the settlement of each support point in an economical way, can ensure timely warning in the case of uneven ground settlement, can avoid safety accidents caused by uneven stress of each support point in the construction process, can avoid uneven settlement of the vibration isolator foundation after construction, and can avoid safety accidents in the experiment process.
Owner:CHINA GEZHOUBA (GRP) FIRST ENG CO LTD

Steel spring floating slab vibration isolation device and construction technology

The invention discloses a steel spring floating slab vibration isolation device and a construction technology, and belongs to the technical field of shock absorbers, the steel spring floating slab vibration isolation device comprises an outer sleeve module and an inner sleeve module, a floating slab is poured outside the outer sleeve module, the bottom of the inner sleeve module is rigidly connected with a foundation, and the inner sleeve module comprises a cover cylinder assembly, a bottom cylinder assembly and a base assembly; a pressure-bearing spring is arranged between the cover cylinder assembly and the bottom cylinder shell, the base shell is connected to the bottom of the bottom cylinder shell in a sliding and rotating mode, and the length of the base shell in the vertical direction is adjustable. According to the spiral transmission and curved surface pressure-bearing structure, follow-up rotation and vertical displacement of the base shell are achieved during foundation settlement, height compensation is automatically completed, manual leveling is not needed, and the construction efficiency is improved. Particulate matters in the base are automatically discharged along with the rotation of the baffle plate; the foundation void is filled up to prevent the bearing failure; a plurality of groups of vibration isolators cooperate to realize vertical self-adaptive compensation, so that the amplification of low-frequency vibration is effectively inhibited, the stress concentration of a shear hinge is eliminated, and the structural safety of the device under the condition of differential settlement is improved.
Owner:深圳市建筑工务署 +1

Chain row device

The invention provides a linkage row device which comprises a plurality of fixed linkage blocks arranged in multiple rows and multiple columns, the multiple fixed linkage blocks in each row of fixed linkage blocks are fixedly connected to a first connecting rope, and the multiple fixed linkage blocks in each column of fixed linkage blocks are fixedly connected to a second connecting rope. At least one row of movable interlocking blocks are arranged between each outermost row of fixed interlocking blocks and the adjacent secondary outer row of fixed interlocking blocks, in each row of movable interlocking blocks, the multiple movable interlocking blocks are all fixedly connected to a third connecting rope, and the multiple movable interlocking blocks movably sleeve the multiple second connecting ropes in a one-to-one correspondence mode; and a fourth connecting rope is connected between each movable interlocking block and the corresponding fixed interlocking block in the outermost row of fixed interlocking blocks. According to the chain row device, the exposed area of the foundation between the outermost row of fixed chain blocks and the secondary outer row of fixed chain blocks can be reduced, the sinking edge of the foundation is ballasted, the scouring speed of the bearing foundation of the chain row is reduced, and the failure speed of the chain row is delayed.
Owner:SHANGHAI YUANWEI CONSTR ENG CO LTD

Light-load rotary floating ground anchor device

PendingCN121556449AConveyorsSupporting framesPontoon bridgeControl theory
The invention relates to a light-load rotary floating ground anchor device which comprises an embedded base, an angular floating arm, an inclined fixing assembly, a rotary shaft rod, a first floating hinge shaft, a wedge-shaped main body connecting floating bridge, a second floating hinge shaft, an adjustable dowel bar and a hook claw soil reversing plate. The inclined fixing assemblies are evenly distributed on the outer side of the bottom of the embedded base in the circumferential direction. The lower end of the rotary shaft rod is matched and connected with a central hole of the embedded base; the front end of the angular floating arm sleeves the upper end of the rotary shaft rod; the left side and the right side of the rear end of the angular floating arm are connected with the two sides of the front end of the wedge-shaped body connecting floating bridge through first floating hinge shafts correspondingly. The second floating hinge shafts are arranged on the two sides of the rear end, connected with the floating bridge, of the wedge-shaped body respectively. The adjustable dowel bars are correspondingly arranged on the rear sides of the second floating hinge shafts respectively; and the two ends of the hook claw soil reversing plate are correspondingly hinged with the rear ends of the two groups of adjustable dowel bars at mutually vertical angles. The steel consumption is low, the stability of the embedded part is guaranteed, and meanwhile inclined load damage caused by uneven settlement of the ground can be prevented.
Owner:DALIAN HUARUI HEAVY IND INT CO LTD +1