Geotechnical Investigations and Erosion Control

Flashcards covering key concepts related to geotechnical investigations, erosion and sediment control, and related reporting requirements.

Purposes of background information gathering for construction sites

To evaluate water drainage and erosion potential, and to identify vulnerable environmental areas.

Identification of environmentally sensitive areas

Helps assess vulnerable zones and choose appropriate erosion and sediment control strategies.

Key information for erosion and sediment control plans

Must include details on area slope, vegetation clearance, drainage systems, and specific location of pits.

Available geotechnical information for highway projects in Alberta

Includes borehole logs, test pit logs, and accompanying reports.

Contents of a geotechnical report

Includes soil type, descriptions, thickness, moisture content, strength values, and water table levels.

Typical testing information on earthwork design drawings

Includes Plasticity Index, soil classifications, moisture content, and maximum dry density.

Erosion and sediment control information in geotechnical reports

Includes identification of drainage patterns, slope stability data, groundwater seepage, and recommendations.

Essential elements of a reconnaissance survey

Covers topography, site access, surface water, vegetation, signs of erosion, and sensitive areas.

Requirements for test hole drilling in earthwork

Must drill to appropriate depths based on soil conditions, existing grades, and safety assessments.

Laboratory test results items

Include visual description, moisture content, Atterberg limits, sieve analysis, and soil classification.

Items in a geotechnical report

Includes topographic features, groundwater conditions, stability considerations, soil problems, and drainage measures.

Summary report items for geotechnical concerns

Covers soft soil conditions, water table issues, crossings, and construction considerations.