Abstract: A safety measuring device for large diameter pipes includes an abutment, a rotating platform, a full-angle laser distance measuring device, a level meter, full-angle laser distance measuring device includes dial, a pointer, and a laser distance meter; the bending degree measuring device includes a high power thruster, fiber optic gyroscope, information integration, and speed sensing system; the information integration and speed sensing system are used to gather camera, optical fiber, acceleration, positioning, and other key parameters, and it can be transmitted in real-time; it also provides a safety assessment method for large-diameter pipelines, comprising: acquiring large-diameter cross-sectional deformation in different periods, comparing the cross-sectional size, axial deformation, and curving degree to assess the degree of cross-section deformation; the three indicators are taken as important indicators in the safety assessment method of large-diameter pipelines.

Abstract: A vehicle-mounted equipment and operation method for rapid detection of danger and hidden danger of a dike is provided, wherein the equipment includes: an operation vehicle; an operation shelter, located behind the cockpit of the operation vehicle and arranged on the chassis of the operation vehicle; a detection system, including a ground penetrating radar detection module, a transient electromagnetic detection module and a seismic wave detection module to perform physical detection of the dike.