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整治路基保护层是一种提高轨道路基承载能力的有效方法。Plasser & Theurer公司研制了一种新型路基整治机,具有道碴回收、砂石回填并起道功能的AHM 800R型路基整治机。这种路基整治方法可以将原有的道床砂石清理出,一次工作过程最多可回填50cm厚的路基保护层。这种整治机的特点在于在整治过程中可将回收的道碴材料再次用于路基保护层。 AHM 800R型整治机已在奥地利联邦铁路投人使用,由奥地利大型机械施工企业运用。
Improvement of subgrade protection is an effective way to improve the bearing capacity of rail subgrade. Plasser & Theurer has developed a new subgrade machine AHM 800R subgrade machine with ballast recovery, gravel backfill and start-up functions. This roadbed remediation method can be cleared out of the original road bed sand, a working process can be up to 50cm thick backfill subgrade protective layer. This machine is characterized by remediation machine in the remediation process can be recycled ballast material again for roadbed protective layer. The AHM 800R unit has been put into operation on the Austrian Federal Railways and is being used by large Austrian construction machinery companies.