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<br />Comment 8: R-9.6710-J - Construction Verification adds anew level of regulation that is
<br />not contained in the Code.
<br />
<br />Finding:
<br />
<br />R-9.6710-J has been deleted.
<br />
<br />G. Based on the above findings in response to the comments received, and the
<br />recommendation of staff that Rule R-9.6710 be adopted as amended, I find that adoption of the
<br />Standards for Geological and Geotechnical Analysis Administrative Rule R-9.6710 as hereinafter
<br />set forth is necessary in order to provide direction in meeting the requirements of the Eugene Code,
<br />1971, and I hereby adopt the following:
<br />
<br />ST ANDARDS FOR GEOLOGICAL AND GEOTECHNICAL ANALYSIS
<br />ADMINISTRATIVE RULE R-9.6710
<br />
<br />R-9.6710-A Definitions.
<br />
<br />As used in this Rule, the following words and phrases are defined in alphabetical order as
<br />follows:
<br />
<br />Design Area: Soil areas within the development site having similar material and
<br />groundwater characteristics, both in physical properties and vertical and horizontal
<br />distribution, such that the engineering design and construction capabilities and constraints
<br />are the same.
<br />
<br />Engineering Properties of Soil and Rock: The engineering or physical properties
<br />of soil and rock depend on both the material, or grain, properties and their in-situ, or
<br />undisturbed, texture, packing, particle orientation, and degree of saturation. Shear strength,
<br />compressibility, expansivity, permeability, and erodibility are most often the engineering
<br />properties of interest. The engineering characteristics of an in-situ rock mass most often
<br />focus on discontinuities, such as bedding, shear zones, and fractures. Such features are
<br />described in terms of frequency, attitude, spacing, roughness, bonding quality, and general
<br />continuity.
<br />
<br />Expansive Soil: Soils containing expansive clay minerals, such as, but not limited
<br />to, montmorillonite, which expands when subjected to a moisture increase and which shrinks
<br />when subjected to a moisture decrease. Soils identified in the Natural Resources
<br />Conservation Services soil manual as having a high shrink -swell potential shall be
<br />considered expansive soils.
<br />
<br />Index Properties of Soil or Rock: The soil material or grain properties of the
<br />material itself, regardless of the in-situ, or undisturbed, texture, packing, orientation, or
<br />degree of saturation. The soil index properties of significance are the properties of the
<br />individual grains or particles, including the distribution of grain sizes, the shape, angularity,
<br />and hardness of individual grains, the amount and type of clay minerals, and the presence and
<br />amount of organics. The rock index properties include color, texture, degree of weathering,
<br />hardness, and geologic origin. The soil/rock index properties are used to indicate, or infer,
<br />potential engineering behavior. The index properties are evaluated to reduce the need for the
<br />more complex and costly engineering (physical) properties tests.
<br />
<br />Administrative Order - 9
<br />R:\ADMINO RD\RULES\03 geotech2ao. wpd(03/26/03)
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