1389 results about "Total station" patented technology

The invention relates to the technical field of building engineering, and discloses a building robot space positioning method based on a BIM model, which comprises the following steps: S1, establishing the BIM model of a building, and in the construction process, integrating real-time sensor data of a building site, and dynamically updating the BIM model to reflect the real-time state of a construction environment; and S2, setting multiple reference points at the construction site, performing coordinate calibration on the reference points by using a total station or a GPS system, aligning a coordinate system of the BIM model with a coordinate system of an actual construction site, and matching a building structure in the BIM model with a building structure in an actual environment through the reference points. Through the fusion of detailed building geometric information and real-time sensor data in the BIM model, the system can realize high-precision space positioning, the pose of the robot is corrected in real time by using an extended Kalman filtering algorithm and a multi-source data fusion technology, and the operation efficiency and the construction precision are effectively improved.

The invention relates to the field of building settlement monitoring, and discloses a multi-source data-artificial intelligence fused building deviation rectification settlement prediction method and system, and the method comprises the following steps: multi-source data collection: obtaining multi-class sensor data related to building settlement, the multiple types of sensors comprise a level gauge, a total station, an underground water level sensor and a soil body pressure sensor, and multi-modal data input is formed; the invention also discloses a multi-source data-artificial intelligence fused building deviation rectification settlement prediction system. The system comprises a data acquisition module, a data processing module, a deep learning prediction module, a model optimization module, an intelligent early warning module and a user interaction module. According to the invention, by dynamically adjusting the settlement risk threshold and introducing a multi-stage early warning signal and an intelligent decision support system, accurate early warning and real-time decision support of the settlement risk are realized, and the adaptability, accuracy and response efficiency of the system are significantly improved.

The invention discloses a stress analysis method for bridge incremental launching construction, and particularly relates to the field of stress analysis. According to the method, a mechanical state matrix is generated by combining wavelet noise reduction and Kalman filtering through distributed optical fibers, a piezoelectric force sensor, a vibrating wire stress meter and other equipment and real-time data; a pushing system-temporary support-beam body coupling dynamic mechanical model is established, and a generalized alpha method is adopted for solving and Bayesian optimization calibration parameters are adopted; key parameters are identified on line through a three-level progressive framework, boundary conditions are dynamically updated in combination with a total station and a laser tracker, and supporting rigidity self-adaptive adjustment is achieved through fuzzy PID control. Model confidence evaluation adopts a residual norm-modal confidence criterion-Bayesian update three-level mechanism, finally, stress distribution, support reaction and displacement deviation are calculated based on a correction model, and a safety index, threshold alarm and risk analysis report is generated through a fuzzy comprehensive evaluation method and fed back to a construction control center in real time.

A total station includes a telescope and a tracking system for aligning an axis of the total station with a target. The tracking system includes a first emitter that emits first light toward the target and a first sensor that receives the first light reflected off the target. The first emitter and first sensor are horizontally offset from a lens center of the telescope. The tracking system also includes a second emitter that emits second light toward the target and a second sensor that receives the second light reflected off the target. The second emitter and second sensor are vertically offset from a lens center of the telescope. Corrective rotations are computed based on the received first light and the received second light.

The invention belongs to the technical field of tunnel excavation, and particularly relates to a method for projecting a tunnel excavation contour through multi-beam visible laser. Comprises: S1, establishing a tunnel line model; s2, establishing a two-dimensional rectangular coordinate system on the excavation section of the tunnel; s3, arranging more than three target positioning points on the excavation section of the tunnel, and installing reflecting lenses on the target positioning points; s4, converting the space coordinates of the target positioning point obtained in the step S3 under the construction engineering coordinate system into a two-dimensional rectangular coordinate system; s5, converting the two-dimensional rectangular coordinates of each point of the theoretical tunnel contour model into three-dimensional space coordinates; s6, erecting a laser projection device; s7, calculating the horizontal angle and the vertical angle obtained in the step S5 by the laser projection device, and controlling a motor to quickly adjust the angles of the reflecting lenses of the X axis and the Y axis respectively; s8, adjusting the angles of the reflecting lenses of the X axis and the Y axis of the related positioning point; and S9, averaging the mileage of the target positioning point of each total station obtained in the step S4, and taking the averaged mileage as the mileage of the current excavation face to carry out informatization management.

The invention discloses a special-shaped steel structure curtain wall construction method based on BIM + three-dimensional scanning, and belongs to the field of building construction, and the construction method comprises the following specific steps: I, carrying out three-dimensional laser scanning on a special-shaped steel structure main body; iI, post-processing scanning point cloud data; iII, reversely establishing a special-shaped steel structure entity model by using the processed point cloud data; iV, performing comparative analysis on the point cloud model of the main body structure and the BIM model; the method can solve the problem of poor installation effect caused by certain deviation between the traditional curtain wall production and installation and an on-site main body, can carry out scanning modeling on a building main body of a special-shaped steel structure, can carry out precision comparison with an original design drawing, and can import model data into a total station to realize automatic lofting; and meanwhile, the construction precision and the construction efficiency are remarkably improved, the reworking problem caused by inaccurate installation is effectively avoided, and therefore the engineering quality is improved.

The invention discloses self-protection engineering surveying and mapping equipment which comprises a total station body and a tripod seat body, the total station body comprises a base fixing seat, a base rotating seat and a surveying and mapping body, a self-protection mechanism for self-protection is arranged outside the total station body, and the self-protection mechanism comprises symmetrical connecting vertical rods. The tripod base body comprises a tripod and a connecting base, and a mounting mechanism convenient to assemble and disassemble is arranged between the base fixing base and the connecting base. The to-be-corrugated PVC coating protective sleeve can extend out to cover the total station body by starting the two driving motors so as to realize self-protection of the total station body, and the connecting vertical rod and the lead screw can synchronously rotate along with the base rotating seat so as to avoid influence on the surveying and mapping visual field of the total station body; the arc-shaped mounting block can be extruded to be separated from the rectangular mounting groove by rotating the rotating ring clockwise, and the total station body can be lifted upwards to complete the disassembly, so that the total station body can perform another surveying and mapping conveniently.

The invention discloses an assembly type laminated slab installation guiding system and method for a public building special-shaped formwork system, and relates to the technical field of constructions.The assembly type laminated slab installation guiding system comprises a data acquisition module, a calculation decision module, an installation guiding module and a geometric compensation connection module; the system comprises a point cloud acquisition module, a point cloud processing module, a BIM processing module, a point cloud processing module, a BIM processing module, a point cloud processing module, a BIM processing module, a field-BIM coordinate correspondence and output of original measurement data and quality indexes, a calculation decision-making module, a component optimal installation attitude and tolerance distribution and generation of installation instruction parameters, and an installation guiding module, which projects an installation instruction to a field in laser, total station and AR modes, and the geometric compensation connecting module is connected with an edge compressible layer through an adjustable bracket and an oval groove hole to achieve XYZ and angle fine adjustment, reliable locking and post-grouting curing are achieved on the premise that the bearing requirement is met, and the device has the advantage of being high in accuracy.

The invention relates to a prefabricated square block mounting method, belongs to the technical field of wharf building construction, and aims to solve the problems of insufficient flatness of a foundation bed, large alignment deviation of prefabricated square blocks and poor seam sealing performance in a traditional mounting method. A trapezoidal tenon is pre-embedded in the bottom surface of the prefabricated square block and is matched with a groove in the top surface, and accurate embedding of the tenon and the groove is realized by combining sectional descending speed control of a crane ship, total station and RTK positioning data fusion deviation correction and underwater camera alignment confirmation; and after installation, scanning is conducted through a depth sounding system, a secondary leveling program is started, the wharf structure installation precision and the overall stability are improved, and the later settlement risk is reduced.

The invention discloses a bridge tower section attitude intelligent prediction method and system based on multi-point cooperative localization, and the method comprises the steps: S100, selecting a plurality of observation points on two adjacent side surfaces of an installed section, obtaining the space coordinates of the observation points through a laser reflector, and carrying out the cooperative measurement through a plurality of total stations; s200, performing attitude change prediction on the to-be-installed segment based on the rigid body transformation mathematical model, calculating the optimal attitude of the to-be-installed segment by using a rotation matrix and a translation vector, optimizing attitude estimation by excessive-point redundant information, and controlling an accumulative error; s300, performing BIM modeling on the bridge tower structure, performing high-precision three-dimensional rendering, converting complex monitoring data into a visual graphical interface, and displaying a segment state in real time; s400, according to data comparison, analysis is carried out in combination with errors, and if the errors with design data are large, corresponding adjustment is carried out; and S500, the steps are repeated till all the bridge tower sections are accurately positioned and installed. And the erection precision and the construction efficiency of the bridge tower sections are improved.

The invention relates to a method for constructing and visualizing a knowledge graph of a secondary virtual loop of an intelligent substation, which solves the problems of incomplete visualization, incomplete relevance, poor readability and the like in the prior art, and adopts the technical scheme that the method comprises the following steps of: acquiring an SCD configuration file and an optical fiber link table of the intelligent substation; reading and analyzing the SCD configuration file, and obtaining virtual loop configuration information of the whole station; matching the virtual loop with the soft pressing plate based on the configuration information of the virtual loop of the whole station; matching the physical loop with the virtual loop based on the total station virtual loop configuration information and the optical fiber link table; constructing a knowledge graph based on the total station virtual loop configuration information; and constructing a total station secondary equipment virtual loop configuration database based on the knowledge graph. The method has the advantages that the configuration information of the virtual loop of the whole station can be completely presented in a graphic form, the visualization degree of the secondary virtual loop of the intelligent station is effectively improved, and the working efficiency of on-site technical improvement, defect elimination, verification and the like is improved.

The invention provides a non-overlapping field-of-view binocular camera external parameter calibration method and system, and the method is applied to a non-overlapping field-of-view area, and comprises the steps: setting a control point, obtaining a three-dimensional coordinate of the control point through a total station, and collecting an image containing the control point through a binocular camera; constructing a re-projection error function by using the three-dimensional coordinates of the control points to obtain an initial value of the external parameters of the camera; designing an image branch and a point cloud branch in a Transform network, respectively extracting image features and coordinate features, then carrying out cross-modal feature association, constructing a weighted multi-objective loss function, and training to obtain matching information of the image features and the coordinate features; and finally, optimizing and solving the extrinsic parameters through the light beam adjustment method model, and outputting the optimized extrinsic parameters of the camera after training. According to the method, the dependence of a traditional method on the field-of-view coincidence degree is overcome, the problem of scale drift when external parameter calibration is performed by using deep learning is solved, and complex scene calibration is supported.

The invention discloses a foundation pit safety monitoring method and device based on cooperation of unmanned aerial vehicle oblique photography and Internet of Things, and relates to the technical field of data processing, and the method comprises the following steps: S1, collecting a three-dimensional image and spectral data of a foundation pit; s2, collecting data of the foundation pit through a monitoring sensor deployed in the foundation pit; s3, multi-source heterogeneous data weighted fusion is carried out; s4, calculating a three-dimensional deformation quantity; s5, performing crack detection on the spectral image acquired by the unmanned aerial vehicle; and S6, fusing the three-dimensional deformation quantity and an abnormal identification result to generate a risk signal, generating a digital twinborn body of the health state of the foundation pit, and realizing minute-level risk early warning. According to the invention, through cooperation of unmanned aerial vehicle oblique photography and a multispectral sensor, in combination with a foundation pit sensor network, the three-dimensional geometrical morphology, multi-physical field parameters and spectral feature data of the foundation pit are synchronously obtained. Compared with traditional total station single-point measurement, the monitoring precision is improved, and the coverage range is expanded to the whole foundation pit area from the local point location of the fixed sensor.

The invention discloses an anomaly measurement system for an urban building facade, which comprises an image information acquisition module, a three-dimensional model generation module, an anomaly identification processing module, a comprehensive verification analysis module and an identification information output module, relates to the technical field of facade detection, and solves the problem that only for identification detection of a single anomaly type, the anomaly detection efficiency is high. According to the method, through standardization of an acquisition path and special scene processing, image information integrity is ensured, acquisition efficiency is improved, unmanned aerial vehicle GPS coordinates and total station control point coordinates are fused, a coordinate system is unified through seven-parameter conversion, absolute deviation of a model is reduced, and the accuracy of the system is improved. According to different characteristics of cracks, hollowing and peeling, double recognition logic of appearance characteristics and three-dimensional geometric characteristics is designed, the misjudgment rate is reduced, multiple types of anomalies are covered, a comprehensive verification module is introduced, and the deviation of an anomaly recognition result is reduced through 30% sample repeated measurement and a manual recheck mechanism.

The invention discloses a full-length expanded-head anchor cable jet grouting reaming rapid construction process, which comprises the following steps: firstly, equipment is fully prepared and has strong pertinence, and a drill rod, a steel bearing body, a hydraulic extrusion sleeve and other parts act synergistically to ensure stable drilling of an anchor cable; secondly, surveying and setting-out are accurate, and accurate arrangement of anchor cable hole positions and real-time deviation correction of a drilling track are achieved by utilizing equipment such as a total station and a level gauge in combination with a drill rod inclination angle adjusting formula and a directional drilling track design formula; and finally, the staged drilling process is scientific and reasonable, primary drilling and secondary drilling are combined, a reaming method is flexibly selected according to different geological conditions, a hard stratum and a complex space environment are effectively dealt with, the hole forming quality is guaranteed, all links are tightly connected from equipment disassembly to high-pressure rotary guniting fluid back pulling to anchor cable tensioning and locking, and the drilling efficiency is greatly improved. And finally, stable anchoring of the anchor cable under complex geological conditions is achieved, and reliable prestress guarantee is provided for slope or foundation pit supporting.

The invention discloses a tunnel point cloud high-precision splicing method based on rotation and translation constraint, and belongs to the technical field of engineering measurement and three-dimensional laser scanning. The method comprises the following steps: a data acquisition stage: acquiring absolute coordinates and relative point cloud data of each station through collaborative operation of a total station and a frame station scanner, and completing scanning of a target tunnel section; a point cloud data preliminary transformation stage: performing translation transformation on relative point cloud data of each station by using absolute coordinates of a rack station scanner, and preliminarily transforming the relative point cloud data into a global coordinate system; a two-stage registration stage based on rotation translation constraint: carrying out two-stage registration on the relative point cloud data of the adjacent sites after preliminary transformation; and a global point cloud model generation stage: unifying the relative point cloud data of all sites to a tunnel construction global coordinate system through two-stage registration, and generating a complete tunnel three-dimensional point cloud model. According to the invention, through rotation translation constraint and a two-stage registration strategy, the millimeter-level splicing precision is ensured, and the cost and the operation difficulty are reduced at the same time.

A method for identifying and calculating the volume of over- and under-excavation in tunnels based on laser point clouds belongs to the field of intelligent tunnel construction and blasting quality assessment technology. Technical solution: The scanned point cloud data is denoised; a design contour point cloud is generated and aligned with the centerline of the actual excavated tunnel; the actual collected tunnel excavation point cloud and the design contour point cloud are Delaunay tetrahedralized; the actual tunnel point cloud is traversed, and the vector dot product formed between the point cloud and the triangular sides of the convex hull is calculated; over- and under-excavation areas are identified; a polyhedron is constructed from the design contour point cloud and the actual excavated area point cloud constituting the area; the polyhedron is divided into quadrilaterals, and the volume of each quadrilateral is calculated, thereby calculating the volume of each over- and under-excavation area. Beneficial effects: This invention can quickly measure over- and under-excavation areas and quantities that are difficult to calculate in tunnel blasting quality assessment, and can replace cumbersome and time-consuming total station and manual measurement methods; this method has the advantages of high precision, high efficiency, and high flexibility.

The invention discloses a total station for pier body construction measurement, and belongs to the technical field of total stations, the total station comprises a support table and a total station body mounted at the upper end of the support table, a central column is fixed at the lower end of the support table, an adjusting lantern ring sleeves the central column, the side edge of the adjusting lantern ring is connected with a locking screw rod, and the locking screw rod is fixed on the support table. The end of the locking screw rod is screwed into a positioning hole in the side edge of the center column, the adjusting lantern ring is connected with a supporting column through a power connecting rod, the upper end of the supporting column is rotationally connected to the lower portion of the supporting table, a balance weight part is inserted into the middle of the center column, and a containing cavity is formed in the lower end of the balance weight part. And a movable plate is connected into a containing cavity in the counter weight part through an auxiliary spring. According to the total station for pier body construction measurement, the stability of the surveying instrument can be improved by lowering the gravity center of the total station in windy weather, and meanwhile, a tip inserted into soil can be protected when being carried, so that stab injury to personnel caused by the tip is prevented.

This invention belongs to the field of engineering measurement technology, specifically a field measurement device for architectural design. The device includes a tripod with a total station mounted on top. A sliding cylinder shields the device from strong light, preventing ambient light from affecting the laser beam and improving the accuracy of laser beam identification and calibration. A conical column, with its conical base, inserts into the soil, enhancing stability during operation and reducing detection errors caused by device sway. A first spring improves adaptability to ground surfaces of varying hardness, enhancing the device's versatility. When the two sliding plates abut against each other, they form a relatively enclosed environment, further reducing the influence of the external environment on the laser beam and improving the accuracy of laser beam identification and calibration.

The invention relates to the technical field of paving, in particular to an indoor high-precision 3D paving method which comprises the following steps: when the first paving work is carried out, a distance measuring device is positioned above a datum line, and a control system adjusts the height of a scraping plate at one end provided with the distance measuring device; the 360-degree prism receives laser emitted by the total station in real time, and the control system adjusts the height of the scraping plate at one end provided with the 360-degree prism; when paving is carried out for the second time or more times, the distance measuring device is arranged above the previous paving surface, detects the distance between the distance measuring device and the previous paving surface in real time and transmits distance data to the control system, and the control system adjusts the height of the scraping plate by adjusting the first lifting rod according to data information; the distance between the distance measuring device and the last paving surface is consistent, paving can be carried out without connecting Beidou or GPS satellite signals, and the problem that high-precision paving cannot be carried out by using the paver in a room without satellite signals is solved.

The invention provides an airborne sounding laser radar system structure error calibration method and device based on similar cone scanning. The method comprises the following steps: establishing a structure error calibration field; establishing a global control coordinate system, and acquiring coordinates of a global control point, a measurement station point, a local control point and the center of a reflector of the airborne sounding laser radar by using a total station; acquiring a slope distance from the center of a reflector to a laser foot point on a laser reflection sticker and a rotation angle of a driving motor based on a laser radar, and acquiring coordinates of the laser foot point by utilizing a total station; based on the displacement and rotation geometrical relationship between the laser scanning reference coordinate system and the global control coordinate system, an error equation is constructed according to the slope distance, the rotation angle of the driving motor and the laser foot point coordinates; and iteratively solving the error equation based on a least square indirect adjustment principle to obtain a structure error value of the airborne depth sounding laser radar system. According to the invention, the measurement quality and reliability of the whole depth sounding system can be significantly improved by accurately obtaining the structure error value of the cone-like scanning type airborne depth sounding laser radar.

The invention discloses a shield guiding system based on single-axis rotation inertial navigation and a total station. The shield guiding system is characterized in that a shield head of a shield tunneling machine faces the tunneling direction of a tunnel; the inertial navigation unit measures attitude information of the shield tunneling machine, and the control box is connected with the inertial navigation unit through a cable and used for transmitting the attitude information of the inertial navigation unit to the industrial computer through the control box; the rear-end prism is mounted on a tunnel pipe wall, the total station is mounted between the inertial navigation device and the rear-end prism, and coordinate information of the inertial navigation device under a coordinate system of the total station is measured through the aiming prism; data exchange is carried out between the radio station and the total station according to an internal protocol, and data of the total station is sent to the industrial computer; the industrial computer is connected with the radio station and the control box through cables, coordinate transformation is carried out based on collected measurement information of inertial navigation and the total station, and the deviation between a reference point of the shield tunneling machine and a designed standard route and the tunneling trend of the shield tunneling machine are calculated. The system is high in measurement real-time performance, high in environmental adaptability and easier to maintain.

The invention relates to the technical field of visual monitoring, and discloses a novel bridge visual monitoring method, which comprises the following steps: S1, arranging targets, installing monitoring targets and reference targets, S2, erecting a system, erecting a customized visual monitoring system in a stable area, S3, establishing a coordinate system, and S4, carrying out visual monitoring. The method comprises the following steps: S1, arranging a standard target at the bottom of a structure to be measured, performing three-dimensional coordinate measurement on the standard target at the bottom of the structure to be measured in the step S1 by adopting a total station, and establishing a standard coordinate system O-XYZ, S4, acquiring and processing an image, and vertically and upwards shooting an image of the target mounted on the inner side of each structure to be measured, S5, calculating displacement and perpendicularity, and S6, transmitting data. According to the method, an environmental parameter compensation mechanism is deeply integrated into the whole process of coordinate measurement and deformation calculation, and unified reference coordinate system establishment and target layout specifications are combined, so that data deviation caused by environmental factors and operation differences in different monitoring scenes is eliminated, long-term monitoring data has systematicness and continuity, and the method is suitable for large-scale popularization and application. The problem of inconsistent results caused by human differences in traditional measurement is solved.

The invention relates to a transverse deviation correction early warning device and method for steel box girder incremental launching construction based on computer vision. The method comprises the steps that (1) a plane coordinate system is established; 2) calculating a scale factor; 3) updating coordinates of the points A and B in real time; 4) determining the rotation angle of the pushing main beam; and (5) calculating the transverse offset to rectify the deviation. The industrial camera is used for replacing a monitoring method of a traditional total station, the method has the advantages of being easy and convenient to install, intelligent and real-time, the transverse offset of any point on the bridge axis can be accurately monitored in real time, once the offset of a certain point of the axis is found, the pushing device can be intelligently controlled immediately to achieve intelligent deviation correction, and meanwhile the detection accuracy is improved. When the axis has a large offset, automatic early warning can be carried out, serious accidents such as overturning of the bridge are avoided, intelligent joint control of monitoring and deviation correction and integration of monitoring and early warning are achieved, the construction speed of pushing is guaranteed, and manual intervention is reduced.

The invention belongs to the technical field of engineering surveying, and particularly relates to an on-site measuring device for building design, which comprises measuring equipment, the measuring equipment comprises a tripod, a total station is arranged at the top of the tripod, a hard light environment can be shielded through a sliding cylinder, the influence of ambient light on laser is avoided, and the measuring precision is improved. Meanwhile, a conical column can be inserted into soil through a conical structure at the bottom of the conical column, so that the stability of the device during operation can be improved, and then detection errors caused by shaking of the device can be reduced; the adaptability of the device to grounds with different hardness is improved through the arrangement of a first spring, then the applicability of the device can be improved, when the opposite sides of the two sliding plates abut against each other, the sliding plates and the arc-shaped plates can form a relatively closed environment, and therefore the influence of the external environment on light beams generated by the laser head is further reduced; and the accuracy of identifying and calibrating the laser beam by the instrument is improved.

The invention relates to the technical field of surveying and mapping devices, in particular to a constructional engineering surveying and mapping device which comprises a protective cover, an installation disc and supporting legs, after the installation disc is stabilized, the installation disc is limited to rotate in a protective cavity, then a total station is installed on the installation disc, and the total station can freely slide on the surface of the installation disc; if the total station encounters strong wind during measurement, once the protective cover topples over and the landing legs separated from the ground slide along the arc-shaped guide rails, firstly, the angle between the landing legs separated from the ground and the landing legs in contact with the ground is adjusted to be increased, the moment for resisting the toppling of the protective cover is increased, and the toppling of the protective cover is avoided; therefore, the damage probability of the internal structure of the total station is reduced.

The invention discloses a large-diameter super-long permanent steel casing sinking positioning system and a construction method thereof. The large-diameter super-long permanent steel casing sinking positioning system comprises an adjustable lifting guide frame, an inner wall supporting component and a positioning monitoring and dynamic closed-loop deviation rectifying system. The guide frame is a double-layer guide frame with adjustable height so as to meet the sinking of steel casings with different lengths; transverse support members are arranged on the inner wall of the steel casing at equal intervals to prevent water pressure difference between the inside and outside of the steel casing at the deepwater position or local deformation under the action of impact load; the monitoring and dynamic closed-loop correction system comprises a total station scanner and a double-shaft inclinometer, the plane position and perpendicularity of the steel casing are fed back in real time, the steel casing is fixed through an automatic position adjusting jack and a V-shaped pressing block, the plane position and perpendicularity of the steel casing are dynamically corrected in real time, and it is ensured that the top face of the casing meets the construction standard. According to the positioning system and the construction method thereof, the technical problems of poor adaptability, low positioning precision, delayed deviation correction response and the like in the sinking process of a large-diameter super-long steel casing in a complex stratum in a deepwater area can be solved.

The invention discloses a directional drilling grouting construction method, belongs to the technical field of civil engineering foundation treatment and underground engineering grouting, and mainly solves the technical problems that the grouting effect is not uniform and ground lifting is difficult to accurately regulate and control due to insufficient control precision of existing drilling deflection. The drilling axis is positioned through the three-dimensional coordinate of the total station, the guide drill bit with the built-in ultrasonic probe is adopted for segmented drilling, the skewness is detected in real time when drilling is conducted every 2 m, and the angle deviation is dynamically corrected through the hydraulic adjusting mechanism. The grouting operation adopts a staged pressure-boosting grouting process, and in the pulling-back process of a grouting pipe, grout filling compactness is ensured through intermittent grout supplementing and tail end pressure-reducing operation. A laser range finder is synchronously adopted to monitor the ground lifting amount in real time, and when the ground lifting amount reaches 3 mm, construction hole sites are automatically switched. The method is suitable for foundation reinforcement engineering of soft soil strata and adjacent sensitive buildings, the construction precision can be effectively controlled, the grouting quality is improved, and stratum disturbance is reduced.

The invention discloses a method for measuring and analyzing inclination of a concrete tower drum of a wind turbine generator. The method comprises the following steps: determining positions of a distribution station, a replacement station and a measuring point of a total station; detecting the roundness of the ring piece; performing seam dislocation detection on the ring piece; the horizontal deviation of the circle centers of the upper observation surface and the lower observation surface and the height difference of the upper observation surface and the lower observation surface are calculated, and the gradient of the wind turbine generator tower is calculated; the maximum settlement amount and the inclination direction are calculated, and the tower drum inclination amount caused by differential settlement of the foundation is obtained; the tower drum inclination amount and the tower drum inclination direction caused by the wind load are calculated through vector operation; judging whether the wind load affects the inclination of the tower drum or not; and comprehensive evaluation is carried out, roundness and a joint dislocation abnormal area are determined, and processing suggestions are provided. Various tower inclination reasons can be accurately identified, a scientific basis is provided for operation and maintenance management of a wind power plant, and safe and efficient operation of a wind turbine generator is guaranteed.

The invention relates to the technical field of BIM (Building Information Model), and discloses a house building project construction management system based on BIM, which comprises a data acquisition module, a model integration module and a construction management module. The data acquisition module collects spatial position, equipment operation parameters and material state data through a total station, a level gauge and Internet of Things equipment, receives BIM design model data and obtains resource configuration information. And the model integration module loads the data acquisition module when the project is started. And the construction management module analyzes the received data, displays a result and gives out an early warning. The construction management system can improve the accuracy and efficiency of construction management.