Established in 1992, China Fenglie Machinery Co., Ltd. are one of China tunnel boring machine manufacturer and supplier and specialize in the production of a range of machine and equipment. We has obtained ISO9001 certification and CE, GS and EMC approvals. With the support of first class equipment, advanced production technique and standardized inspection process, our customized machinings products gains a good selling over not only domestic market, but also overseas markets.

We design and build custom electrics for tunnel boring and raise drill machines. We have been providing the electrics for these machines since 1969. Here is a list of custom electrics solutions we currently provide: Tunnel Boring Machines. Raise Drills. Mobile Mining Machines
Spread Spectrum Digital Radio Systems. Nelis Infra are carrying out work on the diversion of utilities, construction of temporary piers and bus stations. Prorail will construct the rail lines under Central station. Royal Haskoning is responsible for planning and implementation and environmental monitoring. Sol Data Grontmij VOF, a specialist company in geotechnical monitoring, will monitor the construction process and warn of any changes or movement in tunnels and streets. Witteveen & Bos Consulting Engineers will be responsible for safety, risk management and the design and implementation of safety and escape systems for the metro. Benthem Crouwel is responsible for the design of Ceintuurbaan station.

Tunnel boring was the most efficient and ultimately the most environmentally sound and physically safe method for gaining access to the underground environment found at Yucca Mountain. The machine consumed less money and less time than drill-and-blast excavation, and performed with minimal environmental disruption. Tunnel boring machines are built to cope with varying underground conditions. The same machine generally can adapt to both hard rock and loose ground. Sometimes, the machine would encounter both conditions in a single day. Often, the machine's operators did not know what conditions they would face only a few meters ahead. The only thing they could count on was that conditions would vary. Tunnel boring machines (TBM) are used to excavate tunnels with a circular cross section through a variety of geologies. They can be used to bore through hard rock or sand or almost anything in between.

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