A data capture device and a data capture system are provided. The data capture device is configured to navigate along an elongate structure. The data capture device includes a surface scanner, for scanning a surface of the elongate structure; and a sensor, for capturing data relating to the elongate structure. The surface scanner and the sensor are configured to capture data relating to a common region.

A device and method for monitoring freezing-thawing damage of an underwater concrete member in situ. A main structure includes an upper link, concrete member, transverse sealed box, longitudinal sealed box, movable guide rod, probe launching box, multichannel data collector, frequency modulation transmitter, computer, auxiliary wheels, lower link, and a wireless temperature sensor. A process includes four steps: launching of a probe, collection of data, calculation of an elastic modulus, and evaluation of freezing-thawing damage. The device is simply structured, easy to operate, and can be reused, and provides power for launching the probe by non-contact force transmission by using high-strength magnets of the same pole, resolving the sealing problem, and calculates the elastic modulus of the concrete member by using acceleration data obtained by a probe, so as to obtain a loss amount of the elastic modulus, thereby performing real-time in-situ monitoring for freezing-thawing damage of an underwater concrete member.

A method of detecting faults and ensuring integrity of membranes having magnetically functionalized particles, including moving a magnetometer over the membrane to measure at least one magnetic property, mapping the location of the measured properties, identifying anomalies among measured properties including the location of such anomalies, and repairing the membrane at the location where anomalies are identified.

A system for monitoring a foundation includes a sensor cartridge assembly. The sensor cartridge assembly includes a sensor disposed in a sensor tube and a sensor head attached to an end of the sensor tube. Wiring coupled to the sensor and routed in the sensor tube to the sensor head conveys power and/or telemetry between the sensor and a controller. The sensor tube is configured to be inserted into a raceway attached to a foundation. The raceway may be within the foundation and/or located at a perimeter of the foundation. A method for monitoring a foundation includes deriving an elevation of the foundation at the location of the sensor based on pressure measurements made by the sensor within the sensor tube.

A system for monitoring a foundation includes a sensor cartridge assembly. The sensor cartridge assembly includes a sensor disposed in a sensor tube and a sensor head attached to an end of the sensor tube. Wiring coupled to the sensor and routed in the sensor tube to the sensor head conveys power and/or telemetry between the sensor and a controller. The sensor tube is configured to be inserted into a raceway attached to a foundation. The raceway may be within the foundation and/or located at a perimeter of the foundation. A method for monitoring a foundation includes deriving an elevation of the foundation at the location of the sensor based on pressure measurements made by the sensor within the sensor tube.

Disclosed is detection apparatus for flow deformation of foundation layer in horizontal direction including: housing, rotation assembly rotatably disposed within accommodation cavity of the housing, and measurement assembly including first optical fiber lead wire, first optical fiber sensor disposed on first optical fiber lead wire, second optical fiber lead wire, and second optical fiber sensor disposed on second optical fiber lead wire, and disposed within the accommodation cavity. First optical fiber sensor is configured to measure tensile strain of first optical fiber lead wire and first optical fiber sensor before and after the rotation assembly rotates; second optical fiber sensor is configured to measure tensile strain of second optical fiber lead wire and second optical fiber sensor before and after the rotation assembly rotates, to obtain strain amount and displacement change amount, and further to obtain flow deformation degree and flow deformation direction of soil mass of the foundation layer.

The present invention discloses a system for bridge scour multi-source monitoring, including an intelligent monitoring system, a data industrial personal computer, a 5G remote communication transmission system and a remote scour depth evaluation center. The intelligent monitoring system consists of three subsystems including a high-frequency real-time bridge dynamic characteristic monitoring system, an adjustable sound velocity underwater depth monitoring system and a scoured seabed soil pressure change testing system, which are coupled with one another to carry out triggering control to acquire lateral pile data, thereby forming a multi-source bridge local scour real-time sensing monitoring system, and realizing integration of clock synchronization, dynamic control of scour environment conditions, contact sensors and non-contact sensors. The system carries out integrated monitoring on a scour interface, seabed silt scour and deposition as well as bridge dynamic response, and a structural scour depth evaluating method provides bases for bridge maintenance.

The present invention discloses a system for bridge scour multi-source monitoring, including an intelligent monitoring system, a data industrial personal computer, a 5G remote communication transmission system and a remote scour depth evaluation center. The intelligent monitoring system consists of three subsystems including a high-frequency real-time bridge dynamic characteristic monitoring system, an adjustable sound velocity underwater depth monitoring system and a scoured seabed soil pressure change testing system, which are coupled with one another to carry out triggering control to acquire lateral pile data, thereby forming a multi-source bridge local scour real-time sensing monitoring system, and realizing integration of clock synchronization, dynamic control of scour environment conditions, contact sensors and non-contact sensors. The system carries out integrated monitoring on a scour interface, seabed silt scour and deposition as well as bridge dynamic response, and a structural scour depth evaluating method provides bases for bridge maintenance.

A pile foundation bearing performance testing device and method are disclosed. The main body of the present invention is a pile body provided with a hydraulic jack at the bottom, and in the end-bearing friction pile test, the pile foundation service performance test can be conducted under different proportion conditions of the pile side resistance and the pile tip resistance of the pile foundation, and concrete is poured onto the surface of the pile body of the pile foundation bearing performance testing device to form a precast pile and then the pile is driven in permafrost to realize the load service performance test of the precast pile in the permafrost area, and the pile foundation bearing performance testing device is placed into a drilled hole and concrete is poured around the pile to realize the pile foundation service performance test of a bored cast-in-place pile.

A pile foundation bearing performance testing device and method are disclosed. The main body of the present invention is a pile body provided with a hydraulic jack at the bottom, and in the end-bearing friction pile test, the pile foundation service performance test can be conducted under different proportion conditions of the pile side resistance and the pile tip resistance of the pile foundation, and concrete is poured onto the surface of the pile body of the pile foundation bearing performance testing device to form a precast pile and then the pile is driven in permafrost to realize the load service performance test of the precast pile in the permafrost area, and the pile foundation bearing performance testing device is placed into a drilled hole and concrete is poured around the pile to realize the pile foundation service performance test of a bored cast-in-place pile.