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- Air flow -- Mathematical models<br />Mine ventilation -- Measurement (1)
- Barite -- United States<br />Barite industry -- United States (1)
- Caving mining<br />Limestone -- California -- Riverside County (1)
- Cement<br />Oil well cementing (1)
- Electric power consumption -- Measurement<br />Scrapers (Earthmoving machinery) (1)
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Articles 1 - 5 of 5
Full-Text Articles in Engineering
Study Of Oil Well Squeeze Cementing Operations, Arthur Wellesley Walker
Study Of Oil Well Squeeze Cementing Operations, Arthur Wellesley Walker
Professional Degree Theses
"A study of the literature and field operations indicates conclusively that squeeze cementing operations are performed almost exclusively as corrective measures in completing or working-over wells. The most common use is to correct for faulty cement operations during original well completions. Careful study of field operations indicate that in most cases formations are broken-down at pressures far less than that required to lift the overburden, and that large quantities of drilling mud and cement may be pumped into the well (and formations) at pressures less than that of the overburden. Analyses of the forces indicate that the formations will be …
Caving Procedure At The Crestmore Limestone Mine Of The Riverside Cement Company, Riverside County, Calif., Randall Helt Wightman
Caving Procedure At The Crestmore Limestone Mine Of The Riverside Cement Company, Riverside County, Calif., Randall Helt Wightman
Professional Degree Theses
"The following paper describes current mining practices of the Riverside Cement Company at its Crestmore Mine, Riverside, California. For a number of years the Riverside Cement Company obtained its raw materials by surface quarry operations, but after these deposits were exhausted for equipment available at that time, the Company started underground mining. Mine workings were begun in 1927 to 1930 for the recovery of limestone by block-caving methods"--Introduction, page 1.
The Barite Industry In The United States, James Byron Chaney
The Barite Industry In The United States, James Byron Chaney
Masters Theses
"Within the past few years, barite has become one of the most important non-metallic substance mined in the United States, as expressed by the large increase in production since 1943. The purpose of this treatise is to combine in a single volume important information concerning the geographical distribution, geology, mining methods, milling or beneficiation methods, production and utilization of barite in the United States. A large number of references has been used in preparing this treatment. The information has, as far as possible, been brought up-to-date. It is thought by the writer that the paper will present to the reader …
A Study Of The Power Consumption Of Mine Scrapers, Stanley Francis Johnsen
A Study Of The Power Consumption Of Mine Scrapers, Stanley Francis Johnsen
Masters Theses
"Since scrapers were first employed in underground mining work, numerous changes in scraper design have transpired until now there are several common types of scrapers in use in mines over the world. The proved models of scrapers have been developed over a period of more than fifty years. Although specific scrapers have been tested to determine the amount of power consumed, no literature could be found concerning the relative power consumption of the different types of scrapers when operated under identical conditions. Purpose of Problem - The purpose of this study is to determine the relative efficiency of different types …
A Graphic Method For Determining Pressure Losses Due To Air Friction In Mine Airways, Robert F. Bruzewski
A Graphic Method For Determining Pressure Losses Due To Air Friction In Mine Airways, Robert F. Bruzewski
Masters Theses
"One of the most important factors that influence the selection of a fan or blower for circulating a desired quantity of air through mine workings is the total pressure that is required to overcome the resistance of the airways. Ordinarily, the major portion of this resistance is that caused by friction of the moving air on the surface of the airways. The pressure that is required to overcome this frictional resistance is calculated by means of the friction formula"--Introduction, page 1.