For more of this book, click here. In the process of percussion-cable drilling, bore hole walls are reinforced with casing pipes to prevent collapse and to isolate water-bearing horizons. The low driving capacity of a drilling tool and the lack of reliable means for extracting intermediate columns when filters are exposed lead to a situation … Continue reading Immersion And Extraction Of Casing Pipes In The Process Of Percussion-Cable Drilling Of Boreholes
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Diesel Hammers
The most common machines for driving piles are diesel hammers, the main advantages of which are: independence from external energy sources (autonomy), high productivity, simplicity and ease of operation, and low cost of manufacture. The classification and main parameters of diesel hammers are given in GOST 7888-80. All existing and currently used diesel hammers can … Continue reading Diesel Hammers

