Artesian Wells As a Means of Water Supply Including An Account of the Rise Pro
Artesian Wells As a Means of Water Supply Including An Account of the Rise Pro
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In our eReader you can find the full English version of the book. Read Artesian Wells As a Means of Water Supply Including An Account of the Rise Pro Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Artesian Wells As a Means of Water Supply Including An Account of the Rise Pro
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It would appear at first sight that this process is a slow one, but with a due degree of velocity given to the turning of the tool it is, in fact, much more rapid than the ordinary method of breaking the rock by percussive or falling tools. The dia- mond drill is capable of piercing the hardest rocks ; even emery has been bored at the rate of two inches per minute. The rate of progress during actual boring is from two to three inches per minute. In soft strata such as clay, sand and other alluv...ial deposits this drill is worse than useless. When these strata are met with other tools must be employed until the hardest rocks are again met with. It must also be observed that the borings made by this machine are of a comparatively small diameter.
The next consideration in connection with this subject is that of the best mechanical means at our disposal for accomplishing the purpose in hand obtaining artesian water.
The geological features of the subject, however scientifically and fully they may be treated, however able an account may be given of the physical characteristics of the country, can be at this early stage of the development of artesian water supplies in Australia at the best no more nor less than speculative gene- ralisations.
What to read after Artesian Wells As a Means of Water Supply Including An Account of the Rise Pro?
You can find similar books in the "Read Also" column, or choose other free books by Walter Gibbons Cox to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
It would appear at first sight that this process is a slow one, but with a due degree of velocity given to the turning of the tool it is, in fact, much more rapid than the ordinary method of breaking the rock by percussive or falling tools. The dia- mond drill is capable of piercing the hardest rocks ; even emery has been bored at the rate of two inches per minute. The rate of progress during actual boring is from two to three inches per minute. In soft strata such as clay, sand and other alluv...ial deposits this drill is worse than useless. When these strata are met with other tools must be employed until the hardest rocks are again met with. It must also be observed that the borings made by this machine are of a comparatively small diameter.
The next consideration in connection with this subject is that of the best mechanical means at our disposal for accomplishing the purpose in hand obtaining artesian water.
The geological features of the subject, however scientifically and fully they may be treated, however able an account may be given of the physical characteristics of the country, can be at this early stage of the development of artesian water supplies in Australia at the best no more nor less than speculative gene- ralisations.
What to read after Artesian Wells As a Means of Water Supply Including An Account of the Rise Pro?
You can find similar books in the "Read Also" column, or choose other free books by Walter Gibbons Cox to read onlineMoreLess
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