Tunneling

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Excerpt from Tunneling: Short and Long Tunnels of Small and Large Section Driven Through Hard and Soft Materials The preparation of this treatise on tunneling was undertaken as an endeavor to supply practicing engineers and contractors with such information as is needed most usually in tunnel work, and to present students with the underlying principles indispensable to the solution of the many problems met with in driving tunnels serving miscellaneous purposes. It is no small task to give, within the scope of this book, all such information as may be expected by tunnel men in general, such subjects as drilling machinery and equipment, compressor and ventilating plants, explosives and their use, etc., which alone would make a book, together with bulky descriptions bearing on the driving of individual tunnels, have necessarily been avoided or dwelt upon only brie¿y, and the text has been reduced to a minimum. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.