Today I finally finished the translation of the body of Vibro-Engineering and the Technology of Piling and Boring Work. It took long enough (it started with the translation of part of the book by Language Services in Knoxville in the early 1990's) but at last it's done. The last two chapters were done with the explicit … Continue reading My Adventure with AI: Translating the Rest of “Vibro-Engineering and the Technology of Piling and Boring Work”
For more of this book, click here. The issue of decommissioning water wells and ground-freezing wells arises in cases where these wells have fulfilled their task (drainage or ground freezing) or their operation (water supply wells) has ceased to be expedient due to a decrease in productivity that can no longer be restored. Solving the … Continue reading Casing Pipe Extraction During Well Decommissioning
For more of this book, click here. The main method for constructing wells in water depths exceeding 100–150 meters is rotary drilling with clay mud flushing of the borehole. During the development of wells drilled using the rotary method, it is necessary to remove the clay particles of the flushing fluid from the near-filter zone … Continue reading Restoring The Productivity Of Water Wells During Their Development And Repair
As we saw in the previous post, Sanders' Formula wasn't the last word in dynamic formulae, and neither were Weisbach's. Faced with this proliferation, the U.S. Army Corps of Engineers put together the document Pile Foundations and Pile-Driving Formulae, Circular No. 17, Office of the Chief of Engineers, U.S. Army. It was dated 28 November … Continue reading Putting Dynamic Formulae to the Test: the Proctorsville Fort Project
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
Now we get into a topic that's potentially controversial: the energy rating of diesel hammers, or any impact hammer for that matter. Let's start with defining what we mean by rated energy. Efficiency and Rated Striking Energy Hibbeler (1989) defines mechanical efficiency as follows: $latex e = \frac{Energy\,Output}{Energy\,Input} $ (15) A quick look at Equation … Continue reading Diesel Hammers: Rated Striking Energy, and Should Diesel Hammers Be Derated?
This is an overview of the motion of the "standard" type of diesel fuel pump cam which is used to deliver fuel from the fuel tank to the combustion chamber of a single-acting, tubular type of diesel hammer. What are Kinematics? As defined in Seely and Ensign, "Kinematics deals with the relation between distance, time, … Continue reading The Kinematics of Diesel Fuel Pump Cams
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
As noted elsewhere, Vulcan got itself into many products outside of pile driving equipment. One of those was railroad equipment. Some of these didn't work out as planned, as was the case with the Caldwell Steam Snow Plow. Others, ostensibly, had a happier outcome for everyone. In the absence of evidence to the contrary, one of … Continue reading The Hicks Track Laying Machine, and an Example of Belt/Band Friction
More Resources Foundation Design and Analysis: Deep Foundations, Driven Pile Bearing Capacity (for ASD Methods) Foundation Design and Analysis: AASHTO LRFD Method Design and Construction of Driven Pile Foundations, 2016 Edition. This topic is spread out between the two volumes. Overview Engineers have always designed structures with uncertainty in mind, thus it is not permissible … Continue reading Driven Pile Design: ASD and LRFD Methods
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