Tag: entertainment

Installation Of Filter Columns When Constructing Gravel-Packed Wire-Wound Filters In Water Wells

by Don Warrington, posted in Vulcan and Vibratory Hammers

For more of this book, click here. If water-bearing formations consist of sands, it is advisable to install wire-wound filters with a gravel pack in the wells. This pack improves the filtration characteristics of the zone around the filter. It also increases well productivity and stabilizes its operation as a water source. One of the … Continue reading Installation Of Filter Columns When Constructing Gravel-Packed Wire-Wound Filters In Water Wells

Diesel Hammers: The Russian Hammers and Hemi-Headed Pile Drivers

by Don Warrington, posted in Vulcan and Diesel Hammers

At the start of this, it's probably worthwhile to repost the following: In the early 1970’s, when the Brezhnev era seemed most full of promise, an elderly Frenchman travelled from Moscow to Khabarovsk on the Trans-Siberian railway.  After only a few hours at the eastern end of the line he boarded the train again for … Continue reading Diesel Hammers: The Russian Hammers and Hemi-Headed Pile Drivers