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A Handbook of Technologies for Avoidance and Remediation of Acid Mine Drainage.pdf
Taken from Introduction: An array of techniques have been developed during the last several decades to abate or control pollution by acid mine drainage (AMD) from coal and metal mines. Although most of these techniques are succesful in eliminating or decreasing the deleterious effects of AMD in some situations. they are unsuccesful in others. Due to the inherent variability between mines and invironmental conditions, no one abatement or treatment technique is eeffective on all sites, and selection of the best method on each site is difficult given the array of mthods available. The Techniques also vary in the type and size of problem they are capable of handling. Their individual cost, effectiveness, and maintenance ae also important considerations. Therefore, accurate information is needed to understand the limitations of the various methods snd their response to various site variables. Continued research is imperative for field testing of excisting technologies, as well as continued development of new technologies. At present, there is no authoritative guide manual to assist in evaluating the best technique for a given situation.
The Basics of Photogrammetry.pdf
Taken from Basics of Photogrammetry: Before describing the operation of the V-STARS system, a brief introduction to photogrammetry is provided for those who are unfamiliar with the technology. Photogrammetry, as its name implies, is a 3-dimensional coordinate measuring technique that uses photographs as the fundamental medium for metrology (or measurement).
Geotechnical Manual.pdf
Information in this manual is organized into the following chapters:
1. Manual Overview. Introductory information on the purpose and organization of the manual.
2. Soil Surveys. Requirements for conducting soil surveys for projects with bridges, retaining walls, slopes and embankments, sign structures, illumination, sound walls, and radio towers.
3. Field Operations. Requirements for drilling, sampling, and field testing.
4. Soil and Bedrock Logging. Description of material order, level of description, and classification.
5. Foundation Design. Guidelines for selecting foundation types, drilled shafts, piling, and requirements for scour analysis.
6. Retaining Walls. Requirements for retaining wall selection, layouts, design, and excavaton support.
7. Slope Stability. Requirements for slope stability design and analysis.
Engineering and Design Geodetic and Control Surveying (EM 1110-1-1004).pdf
This manual covers the use of engineering surveying techniques for establishing and/or extending project construction control. Accuracy requirements, standards, measurement procedures, calibrations, horizontal and vertical datum transformations, data reduction and adjustment methods, and engineering surveying techniques are outlined. The primary focus of this manual is on conventional (i.e., non-GPS) horizontal and vertical survey techniques using traditional ground survey instruments–transits, theodolites, levels, electronic total stations, etc. Typically, conventional survey techniques include traverse, triangulation, trilateration, and differential leveling.