Abstract: An excavator machine that includes components such as: a suspended casing having a top end and a bottom end; at least one cable that extends above the casing, where the cable is under tension and has a bottom end that is fastened to the top end of the casing; and a cutter device that is arranged at the bottom end of the casing. The excavator machine further includes: a carriage that is mounted to slide along the cable; a device for moving the carriage along the cable; and a locator device for determining the three-dimensional position of the carriage.

Abstract: A device (22) for damping vibrations in a cable (16) comprises an arm (25) oscillating about a pivot (26), a first damper (30) for damping the oscillations of the arm, a coupler (27) attached to the cable, a second, linear-travel damper (31) having an upper end connected to the coupler and a lower end connected to the arm, and a guide (28) for sliding the coupler with respect to the arm parallel to the travel of the second damper such that the movements of the cable that are transverse to the travel of the second damper are transmitted to the arm independently of the second damper.

Abstract: A method of enlarging the space beneath a masonry arch bridge which includes a masonry arch and a spandrel wall at each end of the masonry arch includes forming a movable portion of the masonry arch bridge by cutting the spandrel walls to form a cut on each side of the masonry arch. A lifting force is applied to the masonry arch to raise the masonry arch to a raised position. The masonry arch is then secured in the raised position.

Abstract: The damping device comprises an interconnecting structure between cables of a group of at least three cables of the suspension system which extend substantially in one and the same suspension plane P. The interconnecting structure has, outside the plane P, at least one bearing point for an energy dissipating element arranged so as to develop a damping force in response to a movement of one of the cables of the group relative to the other cables of the group in a direction perpendicular to the suspension plane.

Abstract: An anchoring device including two reinforcements for applying a hooping stress to a tubular structure, each of the reinforcements having a main binding portion which bears against the surface of the structure over 2 turns, a first end arranged at the end of a first end portion, and a second end arranged at the end of a second end portion. The anchoring device includes a spacer including a main body and two pairs of anchoring openings for the two ends of each reinforcement. The first and second end portions extend from a radial plane, where the reinforcements are tangential to the surface, then extend away from the surface from the radial plane as far as the anchoring openings so as not to exert a harmful point force on the structure.

Abstract: The invention concerns the field of support devices for equipping various types of structures. More particularly, the invention concerns a support device (100) comprising a plurality of force transmission parts (1, 2a, 2b) in mutual contact so as to transmit forces directed substantially in a predefined direction (D). One of the parts has a convex surface (1a, 1b), another having a concave surface (20a, 20b) with a larger radius of curvature. The convex surface is in contact with the concave surface in a contact area. At least one of the force transmission parts comprises a block of homogeneous material having at least one recess (4) in a portion substantially aligned with the contact area along said predefined direction.

Abstract: A ferry bridge having two sets of posts anchored on either side of a thoroughfare, support at height a deck over which a carriage moves, wherein a pod is suspended from said carriage for providing the transport of vehicles and passengers between two ferry docks on either side of said thoroughfare, the platform of said pod being divided into a central area dedicated to the transport of vehicles and two side areas dedicated to the transport of passengers. the entrances to the passenger transport areas are arranged on the outer lateral sides of the pod relative to the axis of movement (A) of the pod. The entrances to the vehicle transport area are arranged on the sides opposite said lateral sides, and the ferry docks for the pod comprise a means for separating the vehicles and the passengers into two streams directed toward the specific entrances thereof, respectively.

Abstract: The method is for protecting the end of a cable made of a plurality of parallel tendons (10) anchored using a block (15) having a front side, a rear side and channels (16) extending between the front and rear sides. Each tendon of the cable is held in a respective channel of the anchor block with a blocking member (19). The method comprises performing a first phase of injecting protective material (100) into at least some of the channels of the anchor block. A chamber (30) is formed on at least one side of the anchor block (15) so as to contain portions of the plurality of tendons. A second phase of injecting protective material (200) into the chamber (30) is then performed.

Abstract: Systems and methods for fabricating a retaining wall include an operation for making an untreated wall in the ground. This may be done by digging a trench in the ground and simultaneously mixing the ground in situ with a binder. Next may be a further operation for excavating a volume of ground adjacent to the untreated wall so as to uncover a surface of the untreated wall. Following that may be a further operation for treating the untreated wall during which a protective treatment substance comprising a polymer substance is applied to the surface that was uncovered in such a manner as to obtain a retaining wall of a thickness that is substantially equal to the thickness of the untreated wall.

Abstract: Method for monitoring a civil engineering construction, comprising a first metal reinforcement (1) contributing to the mechanical strength of said construction, and a reference conductor element (2), these being separated by dielectric material (3) and each having a first end (11, 21) that is electrically accessible, the method comprising: A—injecting an incident electrical signal which is applied differentially between the first ends of the first reinforcement (1) and of the reference conductor element (2), B—collecting reflected signals returning along the conductors in return, C—analysing the reflected signals and comparing them against reference signals in order therefrom to deduce any potential structural defect (9) in the first reinforcement.

Abstract: The invention relates to a method for consolidating soil by means of calcifying bacteria, said method comprising washing the consolidated soil and recycling the wash water.

Abstract: A seal for sealing a cable anchor device (4) to a structural element (1, 3), the cable anchor device (4) being arranged to anchor at least one cable (2) to the structural element (1,3) and having a front surface (15) facing an opening (6) of the structural element, through which front surface the at least one cable (2) extends towards the exterior of the structural element, characterized in that the seal comprises a sleeve (12) which extends from a perimeter of a surface of the structural element including the opening (6) of the structural element to a perimeter of a hermetic portion of the anchored cable (2) comprising at least the front surface (15) of the anchor device (4).

Abstract: A method for making a wall in soil. The method may include forming a trench in the soil; filling the trench with a self-hardening material; supplying at least one prefabricated element that has two plates connected together by a connection member; and positioning the prefabricated element in the trench filled with the self-hardening material.

Abstract: The invention relates to a ferry bridge in which two sets of posts anchored on either side of a thoroughfare, such as a river, support at height a deck over which a carriage moves, wherein a pod is suspended from said carriage for providing the transport of vehicles and passengers between two ferry docks on either side of said thoroughfare, the platform of said pod being divided into a central area dedicated to the transport of vehicles and two side areas dedicated to the transport of passengers. The entrances to the passenger transport areas (6) are arranged on the outer lateral sides of the pod (3) relative to the axis of movement (A) of the pod (3). The entrances to the vehicle transport area (5) are arranged on the sides opposite said lateral sides, and the ferry docks (7) for the pod (3) comprise a means for separating the vehicles and the passengers (11) into two streams directed toward the specific entrances thereof, respectively.

Abstract: The invention relates to a device for vibration control of a structure having—two mass bodies (10, 20), each of which is rotatably mounted around a rotational axis (12, 22), wherein both rotational axes extend in the same direction and the center of gravity of each mass body has a spacing (r1, r2) from the associated rotational axis,—a drive that sets each mass body (10, 20) in a circulating rotational motion,—at least one sensor (40), which measures a movement or acceleration of the structure (30), and—a control that, based on the measured movement or acceleration, controls at least one of the following variables:—the rotational angle (?1, ?2) of the rotational movement of at least one mass body (10, 20),—the spacing (a) between the rotational axis (12) of one mass body (10) and the rotational axis (22) of the other mass body (20).

Abstract: Radioactive waste may be stored in storage containers that are suitable for long-term disposal, but do not provide adequate shielding. By assembling an overpack from metal plates, the metal plates each being substantially flat, and the overpack providing sufficient shielding for the radioactive waste, and enclosing the storage container that contains radioactive waste in the overpack, the storage container can then be stored safely in a weatherproof enclosure. The enclosure does not need to provide radiation shielding. The plates can be stored as a flat-pack, and assembled into the overpack when required.

Abstract: A strand (3) comprising a group of twisted threads (8) and arranged so as to have, over a first part (1) of its length: a sheath (4) containing the group of twisted threads, and a flexible filling product (7) filling a peripheral interstice (6) located between the inner face of the sheath and the periphery of the group of twisted threads, and, over a second part (2) of its length, which is separate from the first part: a material (9) covering the periphery of the group of twisted threads, said material adhering to the twisted threads of the group.

Abstract: The method for inspecting a nuclear facility comprises the steps consisting of placing a radiation detector (2) in front of a surface of a portion of the facility (1), the radiation detector (2) being collimated to receive radiation from a cylindrical region of the portion of the facility; carrying out a plurality of measurements of radiation received by the radiation detector tar different transmission energies and different distances, along the axis of the cylindrical region, between the radiation detector and surface of the portion of the facility; and analysing the radiation measurements by subdividing the cylindrical region into a plurality of meshes (3) so as to estimate respective levels of radioactivity in the meshes (3).

Abstract: A method of surveying movements of a terrain. The method may include the steps of providing the raw variations of the coordinates of a plurality of survey points situated on the terrain, and the raw variations of the coordinates of at least one reference point situated on the terrain; determining the real variations of the coordinates of said at least one reference point; and/or calculating corrected variations of the coordinates of the survey points. The method is performed on the basis of the raw variations of the coordinates of the survey points, of the raw variations of the coordinates of said reference point, and of the real variations of the coordinates of said reference point.

Abstract: The invention relates to a method for determining the fatigue capital of a cable supporting a civil engineering structure, the method including: a measuring step (S1, S2) during which the normal tensile stress in the cable and the bending stress in the cable are measured in a synchronized manner so as to obtain the compound stress in the cable; a counting step (S3) during which a count of the number of stress cycles, depending on the amplitude of the stress, is carried out from the measured compound stresses; and a step (S4) of assessing the fatigue capital of the cable during which the fatigue capital of the cable is determined by comparing the count, carried out in the counting step, with a pre-set Wohler curve for the cable.