8 results about "Tunneling length" patented technology

The invention belongs to the technical field of tunnel lining pouring, and aims to solve the problem that lining vault void defects occur occasionally. The invention provides a tunnel vault void monitoring device and method. The tunnel vault void monitoring device comprises a control box and N strain type pressure sensors, the variable pressure sensor is of a sheet-shaped conductive spring structure, the sheet-shaped conductive spring structure comprises a longitudinal high point and a longitudinal low point, the longitudinal high point is connected with the geotechnical cloth below the tunnel vault, and the longitudinal low point is connected with the waterproof plate below the geotechnical cloth. The strain type pressure sensor obtains plumpness data of vault pouring through voltage change caused by distance change between the longitudinal high point and the longitudinal low point; the N strain type pressure sensors are arranged at intervals in the length direction of the tunnel, the control box is electrically connected with the corresponding N strain type pressure sensors through N sets of detection signal lines, and the control box is connected with a terminal displayer used for displaying plumpness data of vault pouring. The method can effectively prevent cavities from appearing on the tunnel secondary lining concrete vault.

The invention relates to the technical field of shield tunnel segment splicing, and provides a shield tunnel segment splicing device which comprises a splicing mechanism, the splicing mechanism comprises two expanding and shrinking mechanisms, a transmission frame, an adjusting mechanism arranged between the two expanding and shrinking mechanisms and a second motor arranged on one of the expanding and shrinking mechanisms, when the pipe piece bodies on the two expanding and shrinking mechanisms are distributed in a staggered mode in the length direction of the tunnel (namely, the multiple pipe piece bodies can synchronously support the inner wall of the tunnel), the hydraulic rods are shrunk through the electric hydraulic devices, the hydraulic rods drive the telescopic prisms to slide in the prism frames, the two expanding and shrinking mechanisms are made to be close to each other, and the telescopic prisms are driven to slide in the prism frames. The multiple pipe piece bodies on the two expanding and shrinking mechanisms can be quickly spliced to form a circular ring shape to support the inner wall of a tunnel, operation can be separated from a shield tunneling machine, the pipe piece bodies can also be installed on the shield tunneling machine to be matched with the shield tunneling machine for operation, applicability is good, operation is easy and efficient, accuracy is good, one-time splicing is achieved, and high use value is achieved.

The application provides a tunnel water leakage monitoring device, comprising: a positioning water leakage detection line and a monitoring host; the monitoring host comprises a monitoring unit; the positioning water leakage detection line is arranged along a preset direction, the positioning water leakage detection line comprises a first conductive wire and a second conductive wire, the resistance value between the first conductive wire and the second conductive wire is a preset value, and the first conductive wire and the second conductive wire are connected through a water medium when water leaks; the monitoring unit is connected to both ends of the positioning water leakage detection line, and the monitoring unit is configured to collect the resistance value between the first conductive wire and the second conductive wire. The device covers the length range of the tunnel through the positioning water leakage detection line, and the water medium forms a conductive connection at the water leakage point, so that the device can sense the water leakage event, and the monitoring unit monitors the water leakage by measuring the resistance value change, thereby solving the problem of real-time monitoring of the water leakage point in the entire tunnel length range.

The invention belongs to the technical field of tunnel shield construction, and particularly provides a duct piece splicing device for electric power tunnel shield construction, which comprises a hoisting assembly, a bearing assembly, a cross beam and a splicing assembly, the hoisting assembly comprises a hoisting track and a hoisting mechanism, the hoisting mechanism is used for transferring duct pieces on a battery car to the bearing assembly, and the bearing assembly is used for bearing the duct pieces on the battery car; and therefore, a grabbing mechanism of the splicing assembly can grab the duct pieces conveniently. The splicing assembly comprises a rotating rail, a first driving part, a grabbing mechanism and a second driving part, the grabbing mechanism is used for grabbing the duct piece from the bearing assembly, the first driving part drives the rotating rail to move along the cross beam, the second driving part drives the grabbing mechanism to rotate along the rotating rail, the posture of the duct piece is changed, and after the duct piece is fixed to the inner wall of the tunnel, the duct piece is assembled. And the grabbing mechanism releases the duct piece and is driven by the second driving piece to reset. The hoisting mechanism and the rotating track move in the length direction of the tunnel during working, the needed operation space is smaller, and the construction requirements of small-diameter tunnels such as electric power tunnels are met.

The present invention discloses a cloud platform-based tunnel lighting intelligent control data analysis method and system, which relates to the field of electric energy regulation technology and is used to solve the potential safety hazard problem of the light difference inside and outside the tunnel not being supplemented due to the instantaneous closure of transition lights. The method comprises collecting the grid load of the tunnel lighting area, obtaining the lighting standard of the lighting area, calculating the grid load schedulability of the tunnel transition lights, judging the grid load degree of the tunnel transition lights by the current of the tunnel transition lights, obtaining the tunnel length, using the K nearest neighbor algorithm to classify the tunnel potential, setting the road section for distance testing, obtaining the vehicle speed and swing frequency in the road section, analyzing the vehicle status and calculating the overall vehicle status in the tunnel, using fuzzy reasoning to comprehensively classify the tunnel potential and the overall vehicle status in the tunnel to determine whether the tunnel transition lights need to be closed, and calculating the continuous closing time of the tunnel transition lights in combination with the overall vehicle status in the tunnel and the grid load schedulability.

The invention discloses a tunnel lighting intelligent control data analysis method and system based on a cloud platform, relates to the technical field of electric energy regulation and control, and is used for solving the potential safety hazard problem that the light difference inside and outside a tunnel is not supplemented due to instantaneous turn-off of a transition lamp. Calculating the power grid load schedulability of the tunnel transition lamp; judging the power grid load degree through the magnitude of current of the tunnel transition lamp; obtaining the tunnel length; carrying out potential classification on the tunnel by using a K-nearest neighbor algorithm, setting a road section for distance test, obtaining the vehicle speed and the swing frequency in the road section, analyzing the vehicle state and calculating the overall vehicle state in the tunnel; determining whether the tunnel transition lamp needs to be turned off or not by using fuzzy reasoning according to the tunnel potential classification and the overall vehicle state in the tunnel, and calculating the continuous turning-off duration of the tunnel transition lamp according to the overall vehicle state in the tunnel and power grid load schedulability.

The utility model relates to the technical field of tunnel test analysis, and discloses a tunnel deformation measuring device, which comprises a track module, a sliding module, a sensor module, a support pad module, a transmission module, a recording plate module and a horizontal calibration module, the track module is arranged in the length direction of the tunnel; the sliding module is embedded into the track module; the supporting pad module is arranged on the sliding module; the sensor module is arranged on the supporting pad module; the sensor module performs signal transmission with the recording board module through the transmission module; the horizontal calibration module provides reference for horizontal placement of the track module. The utility model provides a measurement scheme which adapts to the size and shape change of a tunnel, has a calibration function, is easy to operate and saves time, and can solve the problems of limited sensor installation, high instrument cost, inconvenience in operation, difficulty in comprehensive test and the like during measurement.

The application discloses a tunnel expansion method for ensuring existing tunnel traffic, which comprises the following steps: setting a movable lining capable of moving longitudinally in the existing tunnel to form a traffic protection space, adopting a hollow rotary tunneling machine with an outer diameter matched with the expansion span and an inner diameter matched with the outer contour of the existing tunnel, and performing annular cutting and expansion with the existing tunnel entrance and exit as the starting and receiving ends; performing primary support synchronously during the tunneling process, and the protection length of the movable lining is always ahead of the tunneling length; after the expansion is completed, the tunneling machine is disassembled, secondary lining and auxiliary facilities are constructed, the original support of the existing tunnel is removed under the protection of the movable lining, and finally the movable lining is removed to complete the expansion. The application realizes uninterrupted existing traffic during the whole tunnel expansion, greatly reduces the disturbance of construction to surrounding rock and surrounding buildings, is safe and efficient in construction, and is suitable for large-span tunnel expansion projects of urban and busy traffic lines.