Air Injection and Hot-Film Flow Logging for Evaluation of Roof Cracks in White Pine Mine
- Organization:
- The American Institute of Mining, Metallurgical, and Petroleum Engineers
- Pages:
- 7
- File Size:
- 590 KB
- Publication Date:
- Jan 1, 1975
Abstract
The U.S. Bureau of Mines has developed a technique for locating and evaluating bedding plane cracks in mine roof by an air-injection and hot-film flow logging technique. It is ultrasensitive to cracks and is especially useful for detecting the early stage of crack development. Potential applications include: (1) correlation with roof sag measurements, (2) locating cracks for grouting, (3) comparison of mechanical and resin roof bolt effectiveness, and (4) possible delineation of the fracture zone to confirm the arch hypothesis. The required equipment is inexpensive and simple to operate.
Citation
APA: (1975) Air Injection and Hot-Film Flow Logging for Evaluation of Roof Cracks in White Pine Mine
MLA: Air Injection and Hot-Film Flow Logging for Evaluation of Roof Cracks in White Pine Mine. The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1975.