Admin Order 58-02-25-F - Laserfiche WebLink

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2.2 Number and Locations of Test Borings or Test Pits. The spacing, locations and depths of pits, trenches, or borings shall be in accordance with the professional judgment of the Qualified Registered Professional of record. 2.3 Engineering Properties of Soil. The engineering, or physical, properties of soil and rock depend on both the material, or grain, properties (see Level 2 above) and the in-situ, or undisturbed, texture, packing, particle orientation, and degree of saturation. Shear strength, compressibility, permeability, and erodibility are the engineering properties of interest. Tests for estimating the in-situ shear strength and compressibility of a soil include: (1) direct tests, that attempt to measure the shear strength by direct simulation of field loading conditions and (2) indirect tests that are used with empirical correlations to estimate shear strength in terms of relative consistency (cohesive soils) and relative density (granular soils). Field tests for measuring the permeability of an aquifer may be made using pumping out tests or slug tests. Anyone, or a combination, of the following tests or procedures may be made to determine or estimate shear strength properties of the various soil types and deposits encountered in the test borings or test pits. 2.3.1 Direct measures of in-situ shear strength include: 2.3.1.1 Plate Load Test (ASTM DI194). 2.3.1.2 Field Vane Shear Test (VST) of Cohesive Soil (ASTM D2573). 2.3.1.3 Borehole Shear Test (BST). 2.3.1.4 Unconfined Compression Test of Undisturbed Cohesive Sample (ASTM D2166). 2.3.1.5 Hand Penetrometer Test of Cohesive Sample (Used only for secondary evaluation). 2.3.2 Indirect, empirical estimators of in-situ shear strength are: 2.3.2.1 Standard Penetration Test (SPT) (ASTM D 1586). 2.3.2.2 Static Cone Penetration Test (CPT) (ASTM D 3441). 2.4 In-Situ Character of Rock. The engineering characteristics of an in-situ rock mass generally are concerned with its structural elements. Discontinuities are the major elements of in-situ classification. Fractures in exposed rock surfaces are described in terms of frequency, attitude, spacing, roughness, bonding quality, and general continuity. The main tests made on rock cores, taken with a diamond core barrel sampler, are: 2.4.1 Unconfined compressive strength and/or point load strength. 2.4.2 Rock Quality Designation (RQD). 2.4.3 Seismic velocity and/or velocity index. 3. Report Content. 3.1 Introduction. Must include the same information required in a Levell report. 3.2 Prolect Location and Description. Must include the same information required in a Levell report. 3.3 report. Site Investigation. Must include the same information required in a Level 2 3.4 Analysis of Site Investigation Data. Must include the same information required in a Level 2 report, including results of laboratory tests. Administrative Order - 19 R:\ADM INO RD\RULES\03 geotec h2ao. wpd(03/26/03)