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~ 2.2 Number and Locations of Test Borings or Test Pits. The spacing, locations <br /> ~ and depths ofpits, trenches, or borings shall be in accordance with the professional judgment <br /> of the Qualified Registered Professional of record. <br /> 2.3 En ing Bering Properties of Soil. The engineering, or physical, properties of <br /> ~ soil and rock depend on both the material, or grain, properties (see Level 2 above) and the <br /> in-situ, or undisturbed, texture, packing, particle orientation, and degree of saturation. Shear <br /> strength, compressibility, permeability, and erodibility are the engineering properties of <br /> interest. Tests for estimating the in-situ shear strength and compressibility of asoil include: <br /> (1) direct tests, that attempt to measure the shear strength by direct simulation of field <br /> <br /> j loading conditions and (2) indirect tests that are used with empirical correlations to estimate <br /> shear strength in terms of relative consistency (cohesive soils) and relative density (granular <br /> ~ soils). Field tests for measuring the permeability of an aquifer may be made using pumping <br /> ~ out tests or slug tests. Any one, or a combination, of the following tests or procedures may <br /> be made to determine or estimate shear strength properties of the various soil types and <br /> ~ deposits encountered in the test borings or test pits. <br /> 2.3.1 Direct measures of in-situ shear strength include: <br /> 2.3.1.1 Plate Load Test (ASTM D1194). <br /> 2.3.1.2 Field Vane Shear Test (VST) of Cohesive Soil (ASTM <br /> D2573). <br /> <br /> ~ 2.3.1.3 Borehole Shear Test (BST). <br /> 2.3.1.4 Unconfined Compression Test of Undisturbed Cohesive <br /> Sample (ASTM D2166). <br /> <br /> ~ 2.3.1.5 Hand Penetrometer Test of Cohesive Sample (Used only for <br /> secondary evaluation). <br /> 2.3.2 Indirect, empirical estimators of in-situ shear strength are: <br /> 2.3.2.1 Standard Penetration Test (SPT) (ASTM D1586). <br /> 2.3.2.2 Static Cone Penetration Test (CPT) (ASTM D 3441). <br /> 2.4 In-Situ Character of Rock. The engineering characteristics of an in-situ rock <br /> mass generally are concerned with its structural elements. Discontinuities are the major <br /> <br /> ~ elements of in-situ classification. Fractures in exposed rock surfaces are described in terms <br /> <br /> ~ of frequency, attitude, spacing, roughness, bonding quality, and general continuity. The main <br /> tests made on rock cores, taken with a diamond core barrel sampler, are: <br /> 2.4.1 Unconfined compressive strength and/or point load strength. <br /> ~ 2.4.2 Rock Quality Designation (RQD). <br /> 2.4.3 Seismic velocity and/or velocity index. <br /> 3. Report Content. <br /> 3.1 Introduction. Must include the same information required in a Level 1 report. <br /> 3.2 Proiect Location and Description. Must include the same information <br /> required in a Level 1 report. <br /> <br /> i 3.3 Site Investi ag <br /> tion. Must include the same information required in a Leve12 <br /> report. <br /> <br /> i <br /> 3.4 Analysis of Site Investigation Data. Must include the same information <br /> required in a Leve12 report, including results of laboratory tests. <br /> Administrative Order - 19 <br /> R:\ADM INORD\RULES\03geotech2ao. wpd(03/26/03 ) <br /> <br />