Dr. Ashok Kumar Sharma
Published: 2021-02-11
Total Pages: 367
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The book describes the details about the tunnel construction, that includes, history, shape and sizes, various conventional methods, techniques, planning, designing and methodology of construction in Indian context. The geological investigation for the selection of most economical, and technically viable, alignment for transportation. Further book highlights the necessity of safety for men, material and machinery, during construction. The Geo technical investigation reports are prepared, Rock is classified in five classes like good rock, poor, fair, poor and very poor, according to the strength and characteristics of the rock the conclusion and recommendation are followed while designing the tunnel with adequately safe and sound tunnel support system. ‘The book emphasises on engaging skilled, experienced and trained workmen, plant and equipment in good service condition, which is very important for the completion within stipulated time and cost. The principle of reduce, reuse and recycle is applied in all possible construction activities to minimise the risk to the environment. For ensuring this, the temporary and permanent support system are designed to provide adequate support for the excavated tunnel profile. The Geo technical instrumentation is also provided to continuously monitoring the profile, foresee the behaviour of Rock mass, so that preventive steps are taken in time to mitigate the threats posed by fractured rock mass or poor rock. Finally, it illustrates the various detailed activities and sequences involved at macro level and micro level, for the construction of a tunnel.