пятница, 8 февраля 2013 г.

надбавка к пенсии секретность

The Five Main Types of Slab track (or Ballastless Track) Systemsslab track (or ballastless track) systems can be grouped into five families of design.Embedded Rail - The rail is encased in a resilient elastomer cast into a concrete track slab or steel bridge deck.Resilient baseplate - The rail is attached to a concrete slab or plinth by means of a baseplate assembly containing resilient pads.Booted sleeper e.g. Stedef - The rail is mounted on a twin-block concrete sleeper which is encased in resilient boots, recessed into a concrete slab.Cast-in sleeper e.g. Rheda - The rail is mounted on a sleeper by means of resilient baseplate (Vossloh System 300). The sleeper is cast into a concrete track slab.Floating slab e.g. Japanese Shinkansen system - The rail is mounted on a concrete track slab. A resilient layer or spring system supports the slab.Cast-in sleeperSystem ComponentsThe rail is mounted on a sleeper by means of resilient baseplate (e.g. Vossloh System 300). The sleeper is cast into a concrete track slab.This system has been widely used for construction of high speed lines around the world, with examples being the Rheda and Züblin systems.Rheda track was first installed in Germany in the 1970s and the system has been developed and optimised.Rheda 2000 has been used successfully on high speed lines in Germany, Holland, Spain and Taiwan. Rheda 2000 has been installed in the Hibel & Prestbury Tunnels near Macclesfield in the UK.Turnouts, crossovers and rail expansion joints are available for Rheda slab track (or ballastless track).System PerformanceThe cast-in sleeper system has been used extensively throughout the world for high speed lines, and has proven reliability in service over many years.The problem reported with traditional Rheda was that sleepers worked loose due to vibration and lost their bond with the concrete surround. The development and optimisation of the system over the years leading to Rheda 2000 has largely eliminated this problem. However, careful design of the track slab reinforcement is necessary to mitigate against cracking, particularly where the track is installed in the open.Construction IssuesThe installation of cast-in sleeper track systems can be fully mechanised. This was successfully done on the Cologne-Frankfurt High Speed and the Dutch HSL-Zuid.The base slab or trough section is slip-formed. Track panels with the rail mounted on the sleepers are then set up and longitudinal reinforcement threaded through. Additional lateral reinforcement is placed, if required.The adjustment for line and level can be mechanised with adjustment screws through the sleepers holding the track in position prior to placing the concrete fill. Final adjustment is carried out by hand prior to concrete placement.Concrete is placed between the sleepers and finished by hand. Good compaction of concrete beneath the sleepers must be ensured.Rate of installation depends on concrete supply: Where concrete is supplied as a pump mix, typical installation would be around 120 to 130 metres of track completed in a 12 hour shift. On the HSl-Zuid, up to 300 metres was achieved in an 8 hour shift.Maintenance IssuesThe Vossloh System 300 fastener has the capacity for adjustments of 30mm vertical and 20mm lateral adjustment. Acoustic PerformanceThe acoustic performance of cast-in sleeper systems is well documented, with installations having been in place for over 30 years.Trials have been carried out to mitigate air-borne noise by applications of surface treatme

Цитата(paxam @ 19.12.2009, 22:06) Цитата(filimon @ 19.12.2009, 19:44) Цитата(Agent007 @ 16.12.2009, 22:32) ого!Че ого то каждую вторую девушку в такую позу поставить, корсетом затянуть и еще лучше будет Так в чём дело? давай и посмотрим. Это эта же или нет? В любом случае я прав

Цитата(Agent007 @ 20.12.2009, 0:26) НостальгияY Ольга Енаева

Цитата(paxam @ 19.12.2009, 23:24) «Дачный креатив» или «Наш ответ Лукасу» Y Александр Михневичкопатка!

«Дачный креатив» или «Наш ответ Лукасу» Y Александр Михневич

Цитата(filimon @ 19.12.2009, 19:44) Цитата(Agent007 @ 16.12.2009, 22:32) ого!Че ого то каждую вторую девушку в такую позу поставить, корсетом затянуть и еще лучше будет Так в чём дело? давай и посмотрим.

Цитата(Agent007 @ 16.12.2009, 22:32) Цитата(paxam @ 14.12.2009, 15:50) «Песочные часы» Фото: Анатолий Тур Модель: Серцеедка ого!Че ого то каждую вторую девушку в такую позу поставить, корсетом затянуть и еще лучше будет

«Влажная» реклама VolksWagen GTIПекинское рекламное агентство Y BIG Advertising:Jun Zhang, Tao Meng, Yang Yu, Zhigang Li, Xiaoming Cheng

Цитата(ЧУ-ГУН @ 19.12.2009, 10:42) эту надо было в тему "Девушки в Армии"

Цитата(ЧУ-ГУН @ 19.12.2009, 11:08) Восточные пряностиНевнимателен Лариса в ориентальном стиле уже была на 52-й странице.Да и слишком тяжёлые выкладываешь ужать бы надо неподъёмные странички получатся.

Даже стрелять не надо!Враги сразу испугаются!!!

Восточные пряности

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