Earth Manual, الجزء 1U.S. Department of the Interior, Bureau of Reclamation, 1990 |
المحتوى
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طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
aerial photographs Atterberg limits auger backfill bedrock borehole borrow areas Bureau of Reclamation canal characteristics clay clayey cobbles cohesive soils compacted compressibility cone cone penetration testing construction core barrel core drilling cuttings dams Denver deposits depth determined diameter drill fluid drill rod dry density dry unit weight earth embankment embankment dams engineering properties equipment evaluate excavation exploration filter foundation geophysical gradation hollow-stem auger hydraulic impervious in-place inner barrel investigations laboratory testing layer liquid limit loess logging material maximum methods moisture content obtained particles penetration resistance penetration tests percent performed permeability pervious pipe plastic plasticity index pressure procedures relative density riprap rock rotary drill rotational sampler saturated shear strength shear testing silt silty slopes Soil Classification specific gravity structure subsurface surface test pits trench Triaxial Shear Testing tube U.S. Geological Survey undisturbed samples USBR USGS vane wire-line zones
مقاطع مشهورة
الصفحة ii - Any use of trade names and trademarks in this publication Is for descriptive purposes only and does not constitute endorsement by the US Geological Survey.
الصفحة ii - The Mission of the Bureau of Reclamation is to manage, develop, and protect water and related resources in an environmentally and economically sound manner in the interest of the American public.
الصفحة vii - The manual provides current technical information on the field and laboratory investigations and construction control of soils used as foundations and materials for dams, canals, and many other types of structures built for US Bureau of Reclamation projects in the United States.
الصفحة ii - The information contained in this report regarding commercial products or firms may not be used for advertising or promotional purposes and is not to be construed as an endorsement of any product or firm by the Bureau of Reclamation.
الصفحة 157 - Topsoil Clay Glacial till Igneous rocks Granite Basalt Trap rock Sedimentary rocks Shale Sandstone Siltstone Claystone Conglomerate Breccia Caliche Limestone Metamorphic rocks Schist Slate Minerals...
الصفحة ii - The mission of the Department of the Interior is to protect and provide access to our Nation's natural and cultural heritage and honor our trust responsibilities to tribes.
الصفحة vii - ... construction from the soils standpoint, for both foundation treatment and compaction control of fills. In addition to a general treatment of the subject applicable to all types of earthwork, separate sections are devoted to problems of rolled earth dams, canals, and miscellaneous construction features. The appendix contains detailed procedures for sampling, classification, and field and laboratory testing of soils. Instructions for installing and obtaining information from instruments that measure...
الصفحة 104 - Auger borings often provide the simplest method of soil investigation and sampling. They may be used for any purpose where disturbed samples can be used and are valuable in connection with ground water level determination and indication of changes in strata and advancement of hole for spoon and tube sampling. Equipment required is simple and readily available. Depths of auger investigations are, however, limited by ground water conditions...
الصفحة vii - Chap. 2, which describes the various stages of investigation corresponding to the stages of development of the Bureau projects and gives technical information necessary for planning and executing explorations and for presenting the results.
الصفحة 196 - New Developments in Field and Laboratory Testing of Soils, Proceedings, llth International conference on Soil Mechanics and Foundation Engineering, San Francisco, Vol.