Excerpt from Engineering and Contracting, Vol. 28: A Weekly Journal for Civil Engineers and Contractors; July-December, 1907
The bridge was designed for a live load of engine and tender weighing 112 tons, followed by a train of lbs. Per lin. Ft. The dead load was lbs. Per lin. Ft.
The cost of the bridge to the railway company was as follows.
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Excerpt from Engineering and Contracting, Vol. 28: A Weekly Journal for Civil Engineers and Contractors; July-December, 1907
The bridge was designed for a live load of engine and tender weighing 112 tons, followed by a train of lbs. Per lin. Ft. The dead load was lbs. Per lin. Ft.
The cost of the bridge to the railway company was as follows.
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.
Excerpt from Engineering and Contracting, Vol. 28: A Weekly Journal for Civil Engineers and Contractors; July-December, 1907
For recording the formation 'in detail, a sample of the ground passed through should be taken every 20 ft. Or at every change in the formation. This sample should be marked and put in bottles for future reference. After the ore is entered, most careful samples should be taken every 3 ft. In prospecting for gold, silver or copper these samples should -be put in an iron tub and the water evaporated over a slow fire, after which they should be quartered down and sent to the chemist for the determination of their value.
In some cases 'it is even desirable to have a photograph of'the hole and the formation penetrated. An apparatus has been perfected that will' give a very good photograph of a hole, and show the ore in view if it is plain enough to make an impression. Photographs have even been taken with a moving film giving a con tinuous impression of the hole for over 100 ft. While care should be exercised in taking samples of zinc and lead it is not necessary to spend the same amount of time on them; it is seldom necessary to know their average value per ton. Only the extent of the ore body.
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.
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Paperback. Zustand: New. Print on Demand. This book is a comprehensive guide to engineering contracting, with a focus on cost data and methods for civil engineers and contractors. It includes extensive coverage of methods and costs for various types of construction, including earthwork, rock excavation, tunneling, pavement construction, and water supply systems. The author draws on his own extensive experience in the field to provide practical insights and tips for successful project execution. The book also includes a valuable section on the history of engineering contracting, from the early days of the profession to the present. This historical perspective provides context for the current state of the industry and highlights the challenges and opportunities that lie ahead. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9781334172366_0
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