E01B27/02

Extruded Ballast Protection for Waterproofing

A method for establishing ballast protection film over a waterproofing membrane, the method comprising: a. providing at least one layer of a waterproofing membrane on a surface to form a waterproof seal upon said surface; and b. applying onto a surface of the waterproofing membrane a liquid curable composition at an average uncured thickness of no less than 0.5 mm and no greater than 50 mm, wherein the liquid curable composition comprises (i) at least one reactive acrylate-based monomer, and (ii) a polymerization initiator added to activate polymerization of the reactive acrylate-based monomer, wherein the liquid curable composition cures and forms a resin film when applied to the surface of the waterproofing membrane.

Extruded Ballast Protection for Waterproofing

A method for establishing ballast protection film over a waterproofing membrane, the method comprising: a. providing at least one layer of a waterproofing membrane on a surface to form a waterproof seal upon said surface; and b. applying onto a surface of the waterproofing membrane a liquid curable composition at an average uncured thickness of no less than 0.5 mm and no greater than 50 mm, wherein the liquid curable composition comprises (i) at least one reactive acrylate-based monomer, and (ii) a polymerization initiator added to activate polymerization of the reactive acrylate-based monomer, wherein the liquid curable composition cures and forms a resin film when applied to the surface of the waterproofing membrane.

Auto stow wings

Automated storage is provide for a ballast wing mounted on a regulator frame of a ballast regulator machine. A machine controller may detect actuation of a wing activation switch and, in response, actuate a wing lift cylinder connected between the regulator frame and a wing arm to dispose the wing arm within a predetermined safe zone, actuate a wing pivot cylinder to rotate a wing frame to a wing frame stored position, actuate a wing extension cylinder to retract the wing arm extension to a retracted position within the wing arm, and actuate the wing lift cylinder to rotate the ballast wing to a stored position adjacent the regulator frame.

Auto stow wings

Automated storage is provide for a ballast wing mounted on a regulator frame of a ballast regulator machine. A machine controller may detect actuation of a wing activation switch and, in response, actuate a wing lift cylinder connected between the regulator frame and a wing arm to dispose the wing arm within a predetermined safe zone, actuate a wing pivot cylinder to rotate a wing frame to a wing frame stored position, actuate a wing extension cylinder to retract the wing arm extension to a retracted position within the wing arm, and actuate the wing lift cylinder to rotate the ballast wing to a stored position adjacent the regulator frame.

Shear resistant drain system for improving weak foundation soils
12480260 · 2025-11-25 · ·

Shear drain devices are used to prepare ground with a weak soil layer to receive a static load, for example a structural foundation or a soil embankment, in which the ground includes a weak soil layer that consists of fine grained soils over a base layer. Each shear drain devices each include an elongate perforated pipe member, a surrounding reinforcement member providing tensile reinforcement and aggregate fill. The ground is prepared by (i) inserting the pipe members and reinforcement members in an upright orientation within the fine grained soils such that fluid in the surrounding soil can readily pass into the pipe members and (ii) subsequently placing the aggregate fill in the pipe members to occupy the hollow interior thereof such that the resulting shear drain devices increase a shear strength of the weak soil layer.

Shear resistant drain system for improving weak foundation soils
12480260 · 2025-11-25 · ·

Shear drain devices are used to prepare ground with a weak soil layer to receive a static load, for example a structural foundation or a soil embankment, in which the ground includes a weak soil layer that consists of fine grained soils over a base layer. Each shear drain devices each include an elongate perforated pipe member, a surrounding reinforcement member providing tensile reinforcement and aggregate fill. The ground is prepared by (i) inserting the pipe members and reinforcement members in an upright orientation within the fine grained soils such that fluid in the surrounding soil can readily pass into the pipe members and (ii) subsequently placing the aggregate fill in the pipe members to occupy the hollow interior thereof such that the resulting shear drain devices increase a shear strength of the weak soil layer.

Track maintenance machine with a conveyor or excavating chain arrangement

A track maintenance machine with a conveyor or excavating chain arrangement for removing and collecting railway ballast and/or other formation or substructure layers of a track structure is shown, comprising a cutter bar which can be positioned below a track and which has at least two bar elements, each adjustable in position and alignment, and which is attached to an ascent channel and to a return channel. The device comprises a guided excavating chain consisting of a plurality of chain links, wherein the arrangement can be fastened to a machine frame via at least one height-adjustable suspension device. The excavating chain is designed to be divisible, that the bar elements can be connected via a coupling to form a closed overall unit, and that the arrangement can be variably adjusted in its excavating working width by adjusting the position of the bar elements.

Railway works machine comprising a machine chassis and a works shuttle, and associated railway works convoy
12540442 · 2026-02-03 · ·

A railway works machine comprises a machine chassis and a works shuttle, the machine chassis having two opposite longitudinal end portions and a middle portion connecting the opposite longitudinal end portions, a volume being created underneath the middle portion of the machine chassis to house at least part of the works shuttle. The shuttle chassis is able to move with respect to the machine chassis back and forth between two end-of-travel positions. A longitudinal locking system allows the machine chassis to be secured to the shuttle chassis in a position for travel. The longitudinal locking system comprises a first locking device locking together a first of the two longitudinal end portions and the shuttle chassis and a second locking device locking together the shuttle chassis and a second of the two longitudinal end portions.