Hasil Pencarian  ::  Simpan CSV :: Kembali

""An Introduction to Geological Structures &​ Maps is a concise text that leads the students in easy stages from the simplest ideas on geological structures right through to more advanced geological mapping techniques. The approach is designed to help students with little or no supervision: each new topic is simply explained and illustrated by figures, and exercises are set on successive maps. If students are unable to complete a problem, they can read on to obtain more specific instructions on how theory may be used to solve it." "This considerably enlarged seventh edition is even more user friendly and mirrors present trends in map syllabuses. It includes photographs that will add to the understanding of geological structures already illustrated by text-figures and block diagrams in the appendix. The appendix has been fully updated and now includes completed sections of all maps and solutions to the map problems, which enables the reader to check that his or her attempts have been successfully carried out."--"

"Seismic waves used for exploration of geological structures are mostly generated from blast sources. A new blasting vibroseis apparatus, which utilizes the homogeneity, isotropy, and incompressibility of water to reduce damage to adjacent rock from blast waves, was developed. This method overcomes the low repeatability and low control issues of traditional blast methods (downhole charge) while maintaining the advantages of high explosive power, sharp pulse signal, and a wide range of frequency domains. Blasting vibroseis and traditional blasting tests were implemented in the Three Gorges Reservoir Region, China. The finite element method (FEM) method was used to numerically calculate blasting vibroseis-induced dynamic ground pressures. Through a series of comparison tests, the characteristics of the seismic waves generated by blasting vibroseis were summarized and the repeatability and controllability of the blasting vibroseis test was validated. The blasting vibroseis apparatus was then used to detect geological structures below the surface of the Maoping landslide, China, and the results were very consistent with previous drilling exploration (89%), which reflects the practical value of the new blasting vibroseis for the exploration of geological structures. Blasting vibroseis can be used as a practical and cost-effective method to detect geological structures."