173 results about "Ground settlement" patented technology

The invention discloses an urban land subsidence analysis method and system based on multi-source data fusion, relates to the technical field of subsidence analysis, and constructs a multi-source three-dimensional monitoring network, performs air-space-ground multi-source data fusion analysis and atmospheric delay error correction, constructs a land subsidence prediction model, and provides an urban land subsidence analysis method and system based on multi-source data fusion. According to the method, a ground surface and underground three-dimensional monitoring network is constructed, the level, layered settlement and underground water data are integrated, minute-level global monitoring is achieved in combination with the Internet of Things, and the method is high in practicability and high in practicability. Through air-sky-ground data fusion and atmospheric correction, monitoring errors are reduced to a millimeter level, an evaluation system combining subjective and objective weights generates a five-level risk map, a visual platform supports dynamic simulation and factor traceability, a whole-process technical closed loop is formed, and the intelligent level of urban settlement prevention and control is remarkably improved.

The invention belongs to the technical field of safety monitoring, and discloses a gas pipe network construction site safety monitoring method and related equipment, and the method comprises the steps: collecting the original inclination angle data of different positions of a construction region in real time through distributed monitoring nodes, and carrying out the filtering processing of the original inclination angle data through a moving average filtering algorithm, the differential settlement value is calculated according to the filtered inclination angle data of the adjacent monitoring nodes, the differential settlement value and the dynamic settlement difference threshold value are compared to determine the settlement risk and give an early warning, real-time monitoring of gas pipe network construction site ground settlement is achieved, and the settlement monitoring accuracy is improved.

The invention relates to the technical field of urban geological survey, in particular to an urban geological survey method based on a big data cloud computing technology, which comprises the following steps: based on urban geological drilling detection data, land subsidence monitoring data and underground pipe network distribution data, grouping the data according to geographic grid units and time points, performing statistical analysis to obtain a geological parameter statistical set; and based on the geological parameter statistical set, setting multiple levels of storage partitions according to a data updating frequency, and establishing a geological data partition storage table. According to the method, urban geological data are grouped according to geographic grid units and time points, a multi-level storage partition mechanism is established, hierarchical storage and compression of the data are realized, the occupied storage space is reduced, and the data access speed is increased; key monitoring areas are screened based on a geological parameter change rate threshold, differential compression storage strategies are adopted for different areas, and the overall storage efficiency is optimized on the basis of guaranteeing important data integrity.

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.

The invention discloses a ground surface settlement measurement data real-time fitting method based on an evolutionary algorithm. The method comprises the following steps: S1, acquiring a ground surface settlement measurement data set; s2, preprocessing the ground surface settlement measurement data set; s3, generating a ground surface settlement measurement data feature matrix; s4, constructing a radial basis function neural network model for ground surface settlement measurement data fitting; s5, optimizing parameters of the initial ground surface settlement measurement data fitting function by adopting an alpha evolutionary algorithm; and S6, adopting the optimized ground surface settlement measurement data fitting function to predict the input ground surface settlement measurement data. According to the method, the calculation efficiency, the nonlinear expression capability and the global optimization capability of ground surface settlement measurement data fitting are effectively improved, and the method can be widely applied to multiple scenes of ground surface settlement monitoring, infrastructure safety evaluation and mining area collapse prediction.

The invention discloses a digital twin-driven foundation settlement multi-physics field coupling simulation platform and a use method thereof, relates to the technical field of foundation settlement analysis, and solves the technical problem of settlement prediction deviation accumulation caused by incapability of synchronously updating seepage field and stress field coupling boundary conditions. According to the invention, the twinborn construction unit and the multi-physics coupling solving unit are installed, so that the rapid construction of the digital twinborn of the stratified geologic structure and the multi-physics coupling effect calculation of a stress field, a seepage field and a temperature field of a soil body are realized, and the problem of insufficient precision of traditional single-field simulation is solved; by installing a noise filtering unit and a data standardization unit, elimination of high-frequency interference components of sensor signals and time-space alignment of multi-source data are achieved, the problem that noise interference of geological exploration data is incompatible with heterogeneous formats is solved, and the accuracy and accuracy of foundation settlement analysis are improved. And the reliability of input data and the stability of a simulation result are improved.

The invention relates to an earth surface deformation detection and classification method and system fusing CNN and SBAS-InSAR technologies, and the method comprises the steps: obtaining high-precision deformation data through a small baseline subset and an interference synthesis radar technology (SBAS-InSAR), constructing a CNN classification frame through combining PCA-enhanced optical satellite images, elevation, soil physical parameters, geological landform maps and other multi-source geographic information, and carrying out the detection and classification of the earth surface deformation through the CNN classification frame and the SBAS-InSAR technology. And identification of deformation types such as landslide, settlement and lifting is realized. The process comprises multi-source satellite data acquisition and preprocessing (including InSAR sight velocity decomposition and optical / topographic feature extraction), generation of a preliminary deformation label based on a classification algorithm of a gradient and a deformation velocity threshold, and recognition of a deformation type through a multilayer CNN model. According to the method, the deformation mode is automatically clustered and analyzed in a large-range area, the accuracy and detail performance of deformation type recognition are remarkably improved, the accuracy rate reaches 93%, the method is superior to a traditional method, a stable and extensible tool platform is provided for geological disaster monitoring, and positive risk management of landslide or land subsidence prone areas is assisted.

The invention provides a bimodal substation foundation settlement deformation dynamic prediction method and system, and relates to the technical field of foundation settlement, and the method comprises the steps: deploying a bimodal sensing monitoring network on a target substation to collect foundation mechanical deformation data and foundation deformation positioning data; building a foundation deformation data processing channel to carry out preprocessing and weighted fusion on the foundation mechanical deformation data and the foundation deformation positioning data to obtain foundation settlement deformation fusion data; and training a foundation settlement deformation prediction network to dynamically predict the foundation settlement deformation fusion data, determining a foundation settlement deformation prediction quantity, and triggering a settlement abnormity response mechanism based on the foundation settlement deformation prediction quantity to carry out graded response early warning. The technical problems that in the prior art, transformer substation foundation settlement risk identification lags behind, the disposal efficiency is low, and safe and stable operation of a transformer substation is difficult to guarantee can be solved, and the technical effect of guaranteeing long-term safe and stable operation of the transformer substation is achieved.

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.

The invention discloses a ground surface settlement classification prediction method based on a BP neural network model, and relates to the technical field of foundation pit engineering construction, a foundation pit monitoring technology is a technology used for monitoring parameters such as soil deformation, underground water level and ground surface settlement in foundation pit engineering, and the foundation pit monitoring technology obtains and analyzes data of related parameters in real time. And accurate evaluation on engineering deformation and safety conditions is provided. According to the scheme, ground surface settlement monitoring data including ground surface settlement data of monitoring points and data of related environmental factors are collected and arranged, a data set is divided into a training set and a test set, the training set is used for training and optimizing a BP neural network model, and an optimal network structure and parameter configuration are obtained; and verifying and evaluating the trained model by using a test set, calculating accuracy and performance indexes of classification prediction, performing classification and risk evaluation of ground surface settlement according to a prediction result, and taking corresponding measures to perform engineering management and decision making.

The invention discloses a goaf grouting ground surface settlement precise monitoring method, which uses a ground surface deformation precise monitoring method fusing GNSS, InSAR, D-InSAR and SBAS-InSAR technologies, generates an interference image set on the basis of InSAR and D-InSAR, selects a stable coherent target point, solves the phase information of the coherent target point, and obtains the goaf grouting ground surface settlement precise monitoring result. Therefore, information such as ground subsidence rate and time sequence of the coherent target point is obtained. According to the method, satellite remote sensing, a low-altitude unmanned aerial vehicle and a laser LiDAR are fused to assist a ground precision level construction site residual subsidence deformation air-space-ground integrated monitoring technology, efficient acquisition and refined monitoring of construction site ground surface deformation information are realized, a construction site refined model based on the unmanned aerial vehicle and the LiDAR is constructed, and the construction site residual subsidence deformation monitoring method based on the InSAR and the D-InSAR is established based on the InSAR and the D-InSAR. Generating an interference image set; the method is high in monitoring precision, wide in monitoring range, small in weather influence, convenient and easy in monitoring implementation, relatively low in cost, high in safety, fast in data updating and rich in data volume, and can monitor the continuous deformation process of a ground target on a time sequence.

The invention discloses a karst collapse area early warning and monitoring method and system, and relates to the technical field of karst collapse area early warning and monitoring, and the method comprises the steps: 1, karst cave monitoring, 2, ground subsidence monitoring, and 3, karst cave early warning and management. The internal form change index and the external form change index of the karst cave of the tourist attraction are evaluated, the risk of deformation and fracture of the karst cave is reduced, the stability of the cave is improved, then ground collapse is avoided, the collapse risk of the karst cave of the tourist attraction is analyzed, the grade of karst collapse risk areas is divided, and a processing method is matched. Safety warning and protection measures are taken for the karst cave, the problem that tourists cannot be timely and effectively guided in the sightseeing process is solved, the possibility of staying in a dangerous area is avoided, the landform of a collapse area is simulated, the problem that the range of the collapse area is not clear is avoided, and the rescue opportunity is grasped in time.

The invention discloses a wharf storage yard settlement control method. The method comprises the following steps: S1, planning a monitoring point position in a storage yard, real-time ground settlement volume and settlement volume and pore water pressure of each soil layer at a corresponding position; s2, dividing the storage yard into a plurality of settlement control areas; s3, obtaining historical meteorological data of the storage yard, ground surface settlement volume data in each settlement control area, settlement volume data of each soil layer, pore water pressure and historical loading records, and constructing a storage yard settlement volume prediction model; s4, ground surface settlement prediction values of all the settlement control areas are obtained, and after the ground surface settlement prediction values are compared with the ground surface settlement control values, the settlement control areas to be reinforced are determined; and S5, obtaining a predicted value of the settlement amount of the soil layer in the to-be-reinforced settlement control area, designing a soil layer grouting scheme, and performing grouting enhancement. According to the method, through a dynamic partition monitoring and accurate response technology, the real-time performance and the coverage performance of settlement control of the wharf storage yard are remarkably improved, and the control purpose of accurate grouting of the soil layer is achieved.

The invention, which relates to the technical field of foundation pit deformation monitoring, discloses an automatic foundation pit deformation monitoring and risk assessment system comprising a preset monitoring model generation module, a historical settlement data acquisition module, a settlement data analysis module, a settlement type determination module and a risk early warning module. By determining the span fluctuation interval and the complexity transformation interval, according to the settlement type judgment result and the real-time monitoring data, the settlement span needing to be evaluated and the complexity needing to be evaluated are compared with the comparison interval, the early warning signal of the corresponding grade is rapidly generated, and it is avoided that only deformation of a foundation pit is monitored; the foundation pit deformation monitoring accuracy is further improved, the foundation pit construction safety is further ensured, the risk of safety accidents caused by foundation pit deformation is effectively reduced, and the construction safety and the smooth progress of engineering are ensured.

The invention relates to a manual hole digging pile construction method for a business line. The manual hole digging pile construction method comprises the following steps that physical isolation is conducted on the side adjacent to a railway; the field is leveled, and pile foundation construction lofting is carried out according to the control points; a pile foundation hole is manually excavated in the soil layer to the first depth, and the fabricated retaining wall is hoisted in the pile foundation hole while the hole is excavated; the crawler-type rotary drilling machine is used for continuously drilling downwards in the pile foundation hole with the retaining wall to a second depth; and the multiple sections of reinforcement cages are sequentially hoisted into the pile foundation holes of the first depth and the second depth, then guide pipes are placed, and finally concrete is poured into the pile foundation holes through the guide pipes to form the foundation piles. The pile foundation hole is manually dug in the business line construction area, and the fabricated retaining wall is hoisted in the pile foundation hole while digging the hole, so that the construction disturbance is reduced, the ground subsidence and orifice collapse of the business line construction area are avoided, and the problems that the construction disturbance is large under the condition that the business line cast-in-place pile is close to the business line in the related technology, and the construction efficiency is high are solved. And the ground is easy to sink and the orifice is easy to collapse in the construction range of the business line.

The invention belongs to the technical field of subway deep foundation pit construction in a complex environment, and particularly relates to a subway foundation pit supporting structure optimization design method based on three-dimensional finite element simulation. Comprising the steps that S1, the deformation conditions of a subway deep foundation pit adjacent bridge and the surrounding environment in the excavation stage are monitored; s2, establishing a numerical simulation model of the whole foundation pit excavation process; s3, comparing and verifying a numerical simulation result and an actual measurement result; s4, analyzing the influence of the change of the comprehensive rigidity caused by the change of each parameter on the ground surface settlement; and S5, the supporting structure combination of the excavated subway deep foundation pit is optimized. According to the method, the numerical model of the whole foundation pit excavation process is established and compared with the actually measured data result for verification, and the numerical model can well reflect the influence of subway foundation pit excavation on the surrounding environment and the adjacent bridge in the whole foundation pit excavation process.

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.

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.

The utility model discloses a test device for simulating the influence of aircraft taxiing and landing on foundation settlement, which relates to the technical field of foundation treatment and model test and comprises a trolley, a telescopic smooth guide rail, a thrust device, a vertical telescopic smooth platform, a buffer device, a monitoring sensor, a model runway and a model soil layer. The device creatively integrates a runway model box to reproduce a runway surface structure layer and a pile-net composite foundation, a taxiing landing device is adopted to simulate the taxiing landing process of an aircraft, and braking is achieved through a buffer device. A drainage device is embedded in the device, the sliding trolley is arranged in a front three-point mode to simulate a main landing gear of an airplane, and a 3-degree gliding angle is kept to be close to the real sliding condition. The test device not only considers the transverse impact force of an aircraft, but also performs adaptive design for different tire configurations, and provides a valuable simulation and monitoring means for exploring the dynamic characteristics of aircraft taxiing-landing integration on the pile-net composite foundation.

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.

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.

The application relates to the field of pipeline supporting equipment, in particular to a pipeline supporting device suitable for easily-settled ground, which comprises a pipeline fixing mechanism, a first supporting mechanism and a second supporting mechanism. The pipeline fixing mechanism comprises an upper fixing assembly and a lower fixing assembly arranged at the lower part of the upper fixing assembly. The first supporting mechanism comprises a first supporting column assembly arranged at the lower part of the lower fixing assembly and adjusting assemblies arranged at the two sides of the supporting column assembly. The second supporting mechanism comprises a second supporting column assembly arranged at the outside of the first supporting column assembly and a bottom plate assembly arranged at the lower part of the second supporting column assembly, and the bottom plate assembly is slidingly arranged below the lower fixing assembly. Through the cooperation of the pipeline fixing mechanism, the first supporting mechanism and the second supporting mechanism, the pipeline can be supported after small-amplitude ground settlement, and the first supporting mechanism and the second supporting mechanism are not easy to be damaged when falling away from the fixing mechanism.

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.

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.

The present invention discloses a method and system for monitoring the state of a building based on video. First, a database of the building to be monitored is established and the information of the building to be monitored is stored. Then, video images of the building to be monitored are obtained, the monitoring target area is determined, and the features of this area are extracted. Finally, the monitoring result is obtained by comparing with the standard features in the database. The method and system for monitoring the state of a building based on video provided by the present invention collect images of the building and the ground of the building through video devices distributed around the building, and perform analysis and processing in combination with the building attribute information and geographical information to obtain the monitoring result of the building tilt state and the monitoring result of the ground settlement of the building, so as to timely send a monitoring result signal and avoid losses. This method does not require a large number of pre-arranged targets, reduces the labor intensity, saves manpower, and improves the monitoring efficiency of the building.

The invention relates to an earth pressure balance control method and system for assisting in shield attitude adjustment. The method comprises the steps that historical data are collected, and an earth pressure setting model is constructed; in the tunneling process of the shield tunneling machine, actual construction data, actual ground surface settlement monitoring data and shield tunneling machine tunneling data are obtained in real time; based on the tunneling data of the shield tunneling machine, whether advancing of the current ring is finished or not is judged, if yes, an earth pressure setting model is called, and the earth pressure setting model calculates and outputs a theoretical earth pressure set value of the next ring based on the actual construction data and the actual ground surface settlement monitoring data; whether the elevation of the shield tail is continuously lower than a preset elevation threshold value within a certain time range and cannot be increased or not is judged based on tunneling data of the shield tunneling machine, and if yes, a soil pressure front half ring pressurization mode is started so that the soil pressure set value of the front half ring of the next ring can be automatically pressurized. According to the method, the shield tunneling posture and the earth pressure influence of ground surface settlement are comprehensively considered, and the accuracy of the earth pressure set value is guaranteed.

The invention provides a construction method for a drainage ditch with flexible combination of rigid modules, and belongs to the technical field of coal mines, the method comprises the following steps: firstly, determining the specification of a rigid drainage module and the width of a flexible connecting band according to site deformation monitoring data, and preparing an independent rigid module with a deformation resistance structure; secondly, a groove is excavated, and a sand cushion layer and a high-strength impervious concrete cushion layer are laid; calculating a rigid-flexible proportion coefficient through a module parameter collaborative optimization function, and adjusting structure parameters; prefabricated rigid drainage modules are installed, flexible connecting belts are installed between the adjacent modules, and sealant is coated to form an anti-seepage structure; setting a deformation monitoring point for real-time monitoring; installing a water inlet grid and a water outlet; after water injection testing is completed, the drainage system is delivered for use, and unification of structural stability and functional reliability of the drainage system under the condition of differential settlement of the ground surface is achieved.

The present invention discloses a construction quality and safety assessment system and method. Through multi-angle shooting, key parts of the construction site are fully covered, and missed detection due to incomplete angles is avoided, thereby improving the accuracy of subsequent construction quality and safety assessment. In addition, it is very critical to cover the detection areas of cracks and settlements. By edge recognition of construction images, image processing and analysis, building crack images and ground settlement images are identified. Edge recognition technology is used to extract cracks in building images and settlement features in ground images, which can effectively distinguish between cracks and settlement areas, and efficiently identify problematic areas, providing clear data support for subsequent quality assessments. Finally, the building crack images and the ground settlement images are processed and analyzed by a pre-trained construction quality and safety assessment model, and the safety assessment score of the current construction site is obtained as an output.

The utility model discloses a settlement measuring device applied to subway construction, which relates to the technical field of engineering surveying and comprises a measuring cylinder and a fixing piece, a first measuring rod is arranged in the measuring cylinder, a supporting plate is arranged at the lower end of the first measuring rod, and a plurality of first blind holes are formed in the bottom of the supporting plate. The first blind holes are internally provided with second measuring rods of which the outer diameters are the same as the inner diameters of the first blind holes. A second blind hole communicated with the first blind hole is further formed in the upper end of the first measuring rod, a third measuring rod with the outer diameter identical to the inner diameter of the second blind hole is arranged in the second blind hole, the third measuring rod penetrates to the top of the measuring cylinder, and first scale marks distributed in the axial direction of the third measuring rod are arranged on the outer surface of the third measuring rod. When a certain part below the supporting plate is settled, the second measuring rod can descend along with the part, so that the third measuring rod is forced to descend synchronously, local settlement of the ground can be judged quickly, and remedial measures can be taken in time.

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.