lecture 3 surveying types and uses
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8/3/2019 Lecture 3 Surveying Types and Uses
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SURVEYINGTypes and Uses of Surveying
GE1 – Earth Trek: Lecture 3
Prof. Matthew L. Dimal
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The earliest surveys known were for thepurpose of establishing boundaries of land
Sample Property/Boundary Lines Sample Political Boundaries
Uses of Surveys
Fixing of national and state boundaries
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Charting of coastlines and navigablestreams and lakes
Uses of Surveys
Precise location of definite reference
points throughout the country
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Collection of valuable facts concerningthe earth’s magnetism andestablishment of gravity networks
Uses of Surveys
Establishment and observation of greater network of gravity stations
throughout the country
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The establishment and operation of tidaland water level stations.
Uses of Surveys
The extension of topographic mappingof the land surfaces of the earth.
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The extension of hydrographic and oceanographiccharting and mapping into the approximately ¾ of the world which is essentially unmapped.
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Uses of Surveys
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Types of Surveying
Control
Surveys
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Establishing of horizontal and/or
vertical positions of arbitrary points
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Reference Point
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Types of Surveying
Land
Surveys
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Measuring the lengthand direction of land lines and to establish
the position of theselines on the ground
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Types of Surveying
Topographic
Surveys
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Mapping of theconfiguration of the
terrain and the
corresponding locationof natural and human-made objects
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Types of Surveying
Forestry
Surveys
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Used for forest management,
protection, production
and conservation
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Types of Surveying
Hydrographic
Surveys
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Surveying of bodies of water for the purposes
of navigation, water supply, or subaqueous
construction
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Types of Surveying
Mine
Surveys
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Utilizing the principlesof control, land,
geologic and
topographic surveyingto control, locate and map underground and surface works related to mining operations
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Types of Surveying
Construction
Surveys
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Laying-out, locatingand supervising of public and privateengineering works
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Types of Surveying
RouteSurveys
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Involving thedetermination of alignment, grades,
earthwork quantities and location of natural and
artificial objects to be used in the planning, design
and construction of infrastructure, pipelines,transmission lines and
other linear projects
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Types of Surveying
As-Built
Surveys
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Documenting the precise final locations and lay-outs of engineeringworks, and recording of any design change that
may have beenincorporated in theconstruction
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Types of Surveying
Industrial
Surveys
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Making extremelyaccurate
measurements for manufacturing
processes wheresmall tolerances are
required