Agency: European Commission | Branch: FP7 | Program: CP-IP | Phase: SST.2010.1.1-3. | Award Amount: 8.16M | Year: 2011
Ground vibration, effected by rail services, is an important environmental concern, affecting European citizens nearby any rail infrastructure. Surveys show that many Europeans are subjected to annoying levels of feelable vibration and vibration-induced noise. Although solutions are available for track in tunnels, tracks at grade are a much more extensive problem even for vibration-induced noise. However, solutions for tracks at grade are lacking: for some problems currently no feasible solutions at reasonable cost are available. A group of railway operators, infrastructure managers, infrastructure and rolling stock manufacturers, and construction companies, end users of vibration mitigation technology, have gathered, to propose a major project for Railway Induced Vibration Abatement Solutions (RIVAS). They aim at providing tools and methods to reduce vibration below the threshold of annoynace and induced noise below background levels by 2013. The group includes the expertise of research organisations and universities with specialist laboratory and theoretical modelling facilities. The issues are treated in a holistic way with the focus on reducing the annoyance to lineside residents. The project examines all vibration effects and aspects of the system: vehicle, track, propagation, freight and high-speed rail services. WP1 establishes the test procedures to monitor and control the performance of vibration mitigation measures under realistic conditions WP2 develops and evaluates mitigation measures based on reducing the excitation of vibration at the vehicletrack interface by improved maintenance WP3 develops and evaluates mitigation measures for ballasted and slab tracks WP4 will develop and evaluate mitigation measures based on sub-grade improvement and ground barriers within the railway infrastructure WP5 addresses the impact of the vehicle Each of the solutions is to be validated with field tests on the major European rail networks represented in RIVAS
Pandrol Ltd | Date: 2013-08-30
This invention relates to an anchoring device for use in retaining a railway rail fastening clip, the device comprising a stem for embedding in a rail support member, a head extending from the stem and comprising a generally hook-shaped portion for extending over a portion of the clip to effect retention and terminating at an end apart from the stem, and wherein in use, said end terminates at a sealing plate for bridging the end of the hook-shaped portion and the stem. An associated anchoring device assembly and railway rail fastening assembly are also disclosed.
Pandrol Ltd | Date: 2012-01-24
In a railway rail fastening clip 1 for fastening a railway rail to an underlying rail foundation, which clip 1 is formed of an elongate plate shaped such that a central region 11 of the plate has in profile the form of a letter C, a first end region of the plate extending from one side of the central region 11 of the plate to form a substantially planar base portion 12 of the clip for engaging a rail fastening anchoring device secured to the rail foundation and a second end region of the plate extending from the opposite side of the central region 11 of the plate to form a toe portion 13 of the clip for bearing on a foot of the railway rail, such that in profile the second end region extends further than the first end region, the toe portion of the clip is provided with a throughhole 14 which is arranged such that, when the clip is in its operative configuration, part or all of the throughhole 14 lies above the foot of the rail, the throughhole being configured to receive a corresponding spigot 25 of a toe insulator 2 for electrically insulating the clip from the rail whereby the insulator can be retained on the toe portion of the clip.
Pandrol Ltd | Date: 2013-04-23
A resilient railway rail fastening clip (3) has successive first to seventh portions (31 to 37) where, when the clip (3) is in a non-operative configuration, the first and seventh portions (31, 37) of the clip (3) form leg portions which lie in a first plane (P), the second and sixth portions extend substantially away from and above the first plane (P), at least parts of the third and fifth portions (33, 35) extend towards and above the first plane (P) such that the longitudinal axes of the third and fifth portions (33, 35) lie substantially in a second plane (R), different from the said first plane (P), which second plane (R) intersects the first plane (P) at a first acute angle , and the fourth portion (34) extends substantially in or below the said first plane (P) such that the longitudinal axis of the fourth portion (34) lies substantially in a third plane (Q) which is different to the said second plane (R) and intersects the said first plane (P) at a second acute angle , where 0<. A rail pad (4) for use in a sleeper recess (10) has a railseat portion having opposite side edges (43) to which upstanding portions (44) are connected. Each upstanding portion (44) is connected to a projection (45A; 45B) which extends laterally from the upstanding portion (44) such that it is vertically spaced from, and does not overhang, the rail seat portion (42), the said projection (45A, 45B) extending along only part of the length of the upstanding portion (44) at a location along the length of the upstanding portion (44) which is spaced from ends (44a) thereof.
Pandrol Ltd | Date: 2012-04-03
A sealing plate (2), for use with a rail clip anchoring device having a head and a stem which extends from the head into a concrete sleeper when the anchoring device is in use, wherein the plate is adapted for extending over the underside of the head when the stem of the device is being set in a concrete sleeper, thereby to prevent ingress of concrete into the head of the device, and for being retained on the surface of the sleeper thereafter, and a face (20) of the plate which is to be exposed on the surface of the sleeper is not adapted to receive part of a rail clip.
Pandrol Ltd | Date: 2015-06-26
A fastening system or apparatus for securing a rail to the underlying railroad tie includes a pad, two insulators attached to the pads and two shoulders attached to the ties. An interference fit is formed between the insulators and the shoulders to capture the pad between the shoulders. The insulators are pre-attached to the pad. The mating protrusions of the shoulders and pad allows for ease of insertion such that the pad assembly can be shipped together with the underlying tie.
Pandrol Ltd | Date: 2015-11-18
A rail pad (4) for use in a sleeper recess (10) has a railseat portion having opposite side edges (43) to which upstanding portions (44) are connected. Each upstanding portion (44) is connected to a projection (45A; 45B) which extends laterally from the upstanding portion (44) such that it is vertically spaced from, and does not overhang, the rail seat portion (42), the said projection (45A, 45B) extending along only part of the length of the upstanding portion (44) at a location along the length of the upstanding portion (44) which is spaced from ends (44a) thereof.
Pandrol Ltd | Date: 2012-06-27
An anchoring device for use in a railway rail fastening assembly which employs a resilient railway rail fastening clip to fasten a railway rail, comprises a body having a front portion, which is configured to provide a first load bearing surface extending alongside the rail foot when the device is in use, and first and second side faces, respectively located on opposite sides of the body and configured to extend transversely away from the first portion. The device comprises first and second projecting portions, the first projecting portion extending outwardly from the first side face of the body and providing a first additional load bearing surface which is set back from the first load bearing surface, and the second projecting portion extending outwardly from the second side face of the body and providing a second additional load bearing surface which is set back from the first load bearing surface.
Pandrol Ltd | Date: 2015-04-14
A tie plate is formed with a profile defining two parallel protrusions with bores for receiving the respective ends of two clips. The two clips engage the flange of a rail to secure the rail to the plate, and therefore, to tie disposed below the plate. Since the protrusions are made integrally with the the plate, the resulting tie plate is able to support the rail securely even in the presence of large forces and/or twisting moments on the rail resulting from a train passing over the plate.
Pandrol Ltd | Date: 2014-01-24
A railway rail anchoring device (12) for fastening a railway rail (16) to an underlying foundation (18), the anchoring device comprising a protrusion (28), the anchoring device protrusion being configured to cooperate with a corresponding recess (36) provided in a receiving portion associated with the underlying foundation.