A new approach to rock slope stability

详细信息    A new approach to rock slope stability

• 出版日期：2005.
• 页数：1 v. :
• 第一责任说明：Ineabelle Bermudez Fontanez.
• 分类号：a478 ; a479
• ISBN：0496926195(ebk.) :

MARC全文

02h0026763 20140430163257.0 cr un||||||||| 111213s2005 xx ||||f|||d||||||||eng | 1424972 0496926195(ebk.) : CNY371.35 NGL NGL NGL a478 ; a479 Bermudez Fontanez, Ineabelle. A new approach to rock slope stability [electronic resource] : a rock mass classification system for road cutting slope design (Puerto Rico) / Ineabelle Bermudez Fontanez. 2005. 1 v. : digital, PDF file. Source: Masters Abstracts International, Volume: 43-04, page: 1226. ; Adviser: James Joyce. Thesis (M.S.)--University of Puerto Rico, Mayaguez (Puerto Rico), 2005. Includes bibliographical references. Rock mass classification systems (Rock Mass Rating, RMR; Slope Mass Rating, SMR; and Rock Mass Strength, RMS) were applied at sites along road PR-139 in Ponce, a city located in the south of Puerto Rico in order to assess their "total rating" as indicators of rock mass conditions and stable slope angles of existing rock cuts. Adjustments were made to each system, weighted average adjustments for the discontinuities and weighted average adjustments including wedges that affect the stability, obtained from stereonets analyses; to determine which adjustment best estimates stable slope angles. The analyses indicate that where conditions for wedge failure are present the RMS with weighted average adjustments with wedges gives better results and can be used to determine long-term stable slope angles. The SMR is more difficult to apply and is better to use with average adjustments. When condition for wedge failure is present, it does not give good results. The RMR is simple to apply, but require adjustments in the joint orientation ratings to intermediate class values. The RMR and RMS can be used together with design procedures to estimate slope angles and rock mass properties. Rock slopes. ; Slopes (Physical geography) ; Engineering geology. Electronic books. aeBook. aCN bNGL http://pqdt.bjzhongke.com.cn/Detail.aspx?pid=UxiEHxeMOXE%3d NGL Bs1204 rCNY371.35 ; h1 bs1108