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Rectification Technology and Systematic Arrest of Tunnel Seepage.
Rectification Technology and Systematic Arrest of Tunnel Seepage Reverse Seepage Method Beijing, China. April – May, 2013. Zhang Lei，Pan Long Sheng. Sectional Tunnel Rings Our Aim Achieve Co-operation of Technology and Engagement of Systematic Arrest of tunnel seepage through discussion and communication with China establishments. Avoid happenings of serious consequences and prolong the service life line of current Mass Rapid Transit tunnels and/or other similar services via our Co-operation. Accomplish Systematic Arrest of tunnel seepage to meet local Special class status, even to the extend of the setting of global role model, by vital co-assistance. Lurking Dangers of Water Seepage There is an ancient Chinese saying, “Water is able to penetrate rock mass.” If seepage is left alone without treatment and arrest, the damages caused by seepage, is left to your imagination. Water has almost zero viscosity, and is able to penetrate even hairline cracks. Water corrodes Reinforcement Bars and breaks down the designed strength of Reinforced Concrete when it passes through structures via crack lines often called the routes of seepage. Lurking Dangers of Water Seepage 2 Water continues its natural ability when it ejects from the structures, corroding any metal objects within its reach. Rail tracks and rail tracks anchoring bolts and nuts are just typical examples. If water seeps into electrical distribution services, electrical short circuits are headaches but short circuit fires causing tunnel explosions are tragedies. During the early stages of the usage of service tunnels, there are numerous examples of tunnel collapse, trains derailed, electrical short circuits due to water seepage directly or indirectly, globally. In China, the case of Shanghai M5 tunnel collapse has been reported. Influences of damages caused by water seepage is extensive in tunnels, e.g Public safety, economical neck breaks, stability of City etc. Related News of water seepage in Chin
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