Geologic History - Revision history

Mpollei@gfnet.com at 15:56, 11 July 2023

2023-07-11T15:56:26Z

← Older revision		Revision as of 15:56, 11 July 2023
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	==Best Practices Resources==		==Best Practices Resources==
	{{Document Icon}} [[National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations \| National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations, NRCS~~, 2012~~]]		{{Document Icon}} [[National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations \| National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations, NRCS]]
	{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies \| Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies, FERC~~, 1991~~]]		{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies \| Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies, FERC]]
	{{Document Icon}} [[Design of Small Dams \| Design of Small Dams, USBR~~, 1987~~]]		{{Document Icon}} [[Design of Small Dams \| Design of Small Dams, USBR]]

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Grichards at 23:27, 16 March 2023

2023-03-16T23:27:09Z

← Older revision		Revision as of 23:27, 16 March 2023
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	*“General relationship between the geologic conditions at the site and known or typical design requirements for the proposed conservation practice or structure		*“General relationship between the geologic conditions at the site and known or typical design requirements for the proposed conservation practice or structure
	*“Known or projected mining activities and oil or gas extraction” <ref name="NRCS">[[National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations \| National Engineering Handbook: Chapter 2 Engineering Geologic Investigations, NRCS, 2012]]</ref>		*“Known or projected mining activities and oil or gas extraction” <ref name="NRCS">[[National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations \| National Engineering Handbook: Chapter 2 Engineering Geologic Investigations, NRCS, 2012]]</ref>

			See also: [[Geotechnical and Geology]] > [[Geotechnical Exploration]] > [[Site Reconnaissance]]

	==Best Practices Resources==		==Best Practices Resources==

Rmanwaring at 22:39, 19 December 2022

2022-12-19T22:39:07Z

← Older revision		Revision as of 22:39, 19 December 2022
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	==Best Practices Resources==		==Best Practices Resources==
	~~{{Document Icon}} [[Design of Small Dams \| Design of Small Dams (Bureau of Reclamation)]]~~		{{Document Icon}} [[National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations \| National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations, NRCS, 2012]]
	{{Document Icon}} [[National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations \| National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations ~~(Natural Resources Conservation Service)~~]]		{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies \| Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies, FERC, 1991]]
	{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies \| Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies ~~(Federal Energy Regulatory Commission)~~]]		{{Document Icon}} [[Design of Small Dams \| Design of Small Dams, USBR, 1987]]

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Grichards at 03:36, 14 December 2022

2022-12-14T03:36:27Z

Grichards at 02:23, 18 November 2022

2022-11-18T02:23:18Z

← Older revision		Revision as of 02:23, 18 November 2022
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	__NOTOC__		__NOTOC__
	[[Category:Geotechnical ~~Geologic~~]]		[[Category:Geotechnical Geology]]
	----		----
	<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->		<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->

Grichards at 02:22, 18 November 2022

2022-11-18T02:22:35Z

← Older revision		Revision as of 02:22, 18 November 2022
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	__NOTOC__		__NOTOC__
	[[Category:Geologic ~~History~~]]		[[Category:Geotechnical Geologic]]
	----		----
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Grichards at 21:12, 16 November 2022

2022-11-16T21:12:34Z

← Older revision		Revision as of 21:12, 16 November 2022
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	__NOTOC__		__NOTOC__
			[[Category:Geologic History]]
	----		----
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Rmanwaring at 19:35, 21 October 2022

2022-10-21T19:35:02Z

Grichards at 06:52, 17 September 2022

2022-09-17T06:52:06Z

← Older revision		Revision as of 06:52, 17 September 2022
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	*Known or projected mining activities and oil or gas extraction” <ref name="NRCS">[[Geology National Engineering Handbook: Chapter 2- Engineering Geologic Investigations\| National Engineering Handbook Part 631 Geology Chapter 2 Engineering Geologic Investigations, NRCS, 2012]]</ref>		*Known or projected mining activities and oil or gas extraction” <ref name="NRCS">[[Geology National Engineering Handbook: Chapter 2- Engineering Geologic Investigations\| National Engineering Handbook Part 631 Geology Chapter 2 Engineering Geologic Investigations, NRCS, 2012]]</ref>


	~~==Examples==~~
	~~{{Website Icon}}~~
	==Best Practices Resources==		==Best Practices Resources==
	{{Document Icon}} [[Design of Small Dams]]		{{Document Icon}} [[Design of Small Dams\|Design of Small Dams (Bureau of Reclamation)]]
	{{Document Icon}} [[Geology National Engineering Handbook: Chapter 2- Engineering Geologic Investigations]]		{{Document Icon}} [[Geology National Engineering Handbook: Chapter 2- Engineering Geologic Investigations\|Geology National Engineering Handbook: Chapter 2- Engineering Geologic Investigations (Natural Resources Conservation Service)]]
	~~==Trainings==~~		{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies\|Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies (Federal Energy Regulatory Commission)]]
	{{~~Website~~ Icon}}

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Cort: Created page with "NOTOC ---- “For appraisal studies, considerable useful engineering information may be obtained from published geological maps. These maps identify the rock units and geologic structures underlying the reservoir and damsite and in the surrounding area. “The geologic maps and sections should be accompanied by a report describing the various geologic conditions, incl..."

2022-09-14T19:09:01Z

Created page with "__NOTOC__ ----  “For appraisal studies, considerable useful engineering information may be obtained from published geological maps. These maps identify the rock units and geologic structures underlying the reservoir and damsite and in the surrounding area. “The geologic maps and sections should be accompanied by a report describing the various geologic conditions, incl..."

New page

__NOTOC__
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“For appraisal studies, considerable useful engineering information may be obtained from published geological maps. These maps identify the rock units and geologic structures underlying the reservoir and damsite and in the surrounding area.

“The geologic maps and sections should be accompanied by a report describing the various geologic conditions, including bedrock and soil classifications and the types of cementing materials that may occur in the rock and soil. The appraisal stage report should discuss the relationship of the geologic conditions to the present and future permeability of the reservoir and dam foundation, and to the future stability and performance of the dam, spillway, and other structures. Readily apparent geologic problems requiring further investigations also should be discussed, and a tentative program outlining the extent and character of more detailed explorations for the feasibility stage of investigation should be recommended. The reservoir and damsite area should be examined for potential landslides that could be activated by construction.

“During construction, geologic drawings should be revised or new drawings completed to show the conditions actually revealed in construction excavations. Such a map may prove to be an invaluable ‘as-built’ record of operation and maintenance if geologic problems, such as anomalies in foundation behavior or excessive seepage, are encountered later”. <ref name="USBR">[[Design of Small Dams| Design of Small Dams, USBR, 1987]]</ref>

“Data gathered during the reconnaissance are primarily descriptive and should include the following:

*General geology of the site: surface and subsurface earth materials
*Geologic conditions that may affect erosion and sedimentation
*Geologic conditions that may influence groundwater movement and recharge
*General character of topography and stream system
*Engineering properties of soil and rock materials
*Presence and activity of faults
*General relationship between the geologic conditions at the site and known or typical design requirements for the proposed conservation practice or structure
*Known or projected mining activities and oil or gas extraction” <ref name="NRCS">[[Geology National Engineering Handbook: Chapter 2- Engineering Geologic Investigations| National Engineering Handbook Part 631 Geology Chapter 2 Engineering Geologic Investigations, NRCS, 2012]]</ref>

==Examples==
{{Website Icon}}
==Best Practices Resources==
{{Document Icon}} [[Design of Small Dams]]
{{Document Icon}} [[Geology National Engineering Handbook: Chapter 2- Engineering Geologic Investigations]]
==Trainings==
{{Website Icon}}


{{Citations}}


{{revhistinf}}

← Older revision		Revision as of 03:36, 14 December 2022
Line 3:		Line 3:
	----		----
	<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->		<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->
	“For appraisal studies, considerable useful [[engineering]] information may be obtained from published geological maps. These maps identify the rock units and geologic structures underlying the reservoir and damsite and in the surrounding area.		“For appraisal studies, considerable useful [[engineering]] information may be obtained from published geological maps. These maps identify the rock units and geologic structures underlying the reservoir and damsite and in the surrounding area."<ref name="USBR">[[Design of Small Dams\| Design of Small Dams, USBR, 1987]]</ref>

	“The geologic maps and sections should be accompanied by a report describing the various geologic conditions, including bedrock and soil classifications and the types of cementing materials that may occur in the rock and soil. The appraisal stage report should discuss the relationship of the geologic conditions to the present and future permeability of the reservoir and dam foundation, and to the future [[stability]] and performance of the dam, spillway, and other structures. Readily apparent geologic problems requiring further investigations also should be discussed, and a tentative program outlining the extent and character of more detailed explorations for the feasibility stage of investigation should be recommended. The reservoir and dam site area should be examined for potential landslides that could be activated by [[construction]].		“The geologic maps and sections should be accompanied by a report describing the various geologic conditions, including bedrock and soil classifications and the types of cementing materials that may occur in the rock and soil. The appraisal stage report should discuss the relationship of the geologic conditions to the present and future permeability of the reservoir and dam foundation, and to the future [[stability]] and performance of the dam, spillway, and other structures. Readily apparent geologic problems requiring further investigations also should be discussed, and a tentative program outlining the extent and character of more detailed explorations for the feasibility stage of investigation should be recommended. The reservoir and dam site area should be examined for potential landslides that could be activated by [[construction]]."<ref name="USBR"/>

	“During construction, geologic drawings should be revised or new drawings completed to show the conditions actually revealed in construction excavations. Such a map may prove to be an invaluable ‘as-built’ record of [[operation]] and maintenance if geologic problems, such as anomalies in foundation behavior or excessive seepage, are encountered ~~later”~~. <ref name="USBR"~~>[[Design of Small Dams\| Design of Small Dams, USBR, 1987]]<~~/~~ref~~>		“During construction, geologic drawings should be revised or new drawings completed to show the conditions actually revealed in construction excavations. Such a map may prove to be an invaluable ‘as-built’ record of [[operation]] and maintenance if geologic problems, such as anomalies in foundation behavior or excessive seepage, are encountered later.”<ref name="USBR"/>

	“Data gathered during the reconnaissance are primarily descriptive and should include the following:		“Data gathered during the reconnaissance are primarily descriptive and should include the following:

	*~~General~~ geology of the site: surface and subsurface earth materials		*“General geology of the site: surface and subsurface earth materials
	*~~Geologic~~ conditions that may affect erosion and [[sedimentation]]		*“Geologic conditions that may affect erosion and [[sedimentation]]
	*~~Geologic~~ conditions that may influence [[groundwater]] movement and recharge		*“Geologic conditions that may influence [[groundwater]] movement and recharge
	*~~General~~ character of topography and stream system		*“General character of topography and stream system
	*~~Engineering~~ properties of soil and rock materials		*“Engineering properties of soil and rock materials
	*~~Presence~~ and activity of faults		*“Presence and activity of faults
	*~~General~~ relationship between the geologic conditions at the site and known or typical design requirements for the proposed conservation practice or structure		*“General relationship between the geologic conditions at the site and known or typical design requirements for the proposed conservation practice or structure
	*~~Known~~ or projected mining activities and oil or gas extraction” <ref name="NRCS">[[National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations \| National Engineering Handbook: Chapter 2 Engineering Geologic Investigations, NRCS, 2012]]</ref>		*“Known or projected mining activities and oil or gas extraction” <ref name="NRCS">[[National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations \| National Engineering Handbook: Chapter 2 Engineering Geologic Investigations, NRCS, 2012]]</ref>

	==Best Practices Resources==		==Best Practices Resources==

← Older revision		Revision as of 19:35, 21 October 2022
Line 2:		Line 2:
	----		----
	<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->		<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->
	“For appraisal studies, considerable useful engineering information may be obtained from published geological maps. These maps identify the rock units and geologic structures underlying the reservoir and damsite and in the surrounding area.		“For appraisal studies, considerable useful [[engineering]] information may be obtained from published geological maps. These maps identify the rock units and geologic structures underlying the reservoir and damsite and in the surrounding area.

	“The geologic maps and sections should be accompanied by a report describing the various geologic conditions, including bedrock and soil classifications and the types of cementing materials that may occur in the rock and soil. The appraisal stage report should discuss the relationship of the geologic conditions to the present and future permeability of the reservoir and dam foundation, and to the future stability and performance of the dam, spillway, and other structures. Readily apparent geologic problems requiring further investigations also should be discussed, and a tentative program outlining the extent and character of more detailed explorations for the feasibility stage of investigation should be recommended. The reservoir and ~~damsite~~ area should be examined for potential landslides that could be activated by construction.		“The geologic maps and sections should be accompanied by a report describing the various geologic conditions, including bedrock and soil classifications and the types of cementing materials that may occur in the rock and soil. The appraisal stage report should discuss the relationship of the geologic conditions to the present and future permeability of the reservoir and dam foundation, and to the future [[stability]] and performance of the dam, spillway, and other structures. Readily apparent geologic problems requiring further investigations also should be discussed, and a tentative program outlining the extent and character of more detailed explorations for the feasibility stage of investigation should be recommended. The reservoir and dam site area should be examined for potential landslides that could be activated by [[construction]].

	“During construction, geologic drawings should be revised or new drawings completed to show the conditions actually revealed in construction excavations. Such a map may prove to be an invaluable ‘as-built’ record of operation and maintenance if geologic problems, such as anomalies in foundation behavior or excessive seepage, are encountered later”. <ref name="USBR">[[Design of Small Dams\| Design of Small Dams, USBR, 1987]]</ref>		“During construction, geologic drawings should be revised or new drawings completed to show the conditions actually revealed in construction excavations. Such a map may prove to be an invaluable ‘as-built’ record of [[operation]] and maintenance if geologic problems, such as anomalies in foundation behavior or excessive seepage, are encountered later”. <ref name="USBR">[[Design of Small Dams\| Design of Small Dams, USBR, 1987]]</ref>

	“Data gathered during the reconnaissance are primarily descriptive and should include the following:		“Data gathered during the reconnaissance are primarily descriptive and should include the following:

	*General geology of the site: surface and subsurface earth materials		*General geology of the site: surface and subsurface earth materials
	*Geologic conditions that may affect erosion and sedimentation		*Geologic conditions that may affect erosion and [[sedimentation]]
	*Geologic conditions that may influence groundwater movement and recharge		*Geologic conditions that may influence [[groundwater]] movement and recharge
	*General character of topography and stream system		*General character of topography and stream system
	*Engineering properties of soil and rock materials		*Engineering properties of soil and rock materials
	*Presence and activity of faults		*Presence and activity of faults
	*General relationship between the geologic conditions at the site and known or typical design requirements for the proposed conservation practice or structure		*General relationship between the geologic conditions at the site and known or typical design requirements for the proposed conservation practice or structure
	*Known or projected mining activities and oil or gas extraction” <ref name="NRCS">[[~~Geology~~ National Engineering Handbook: Chapter 2- Engineering Geologic Investigations\| National Engineering Handbook ~~Part 631 Geology~~ Chapter 2 Engineering Geologic Investigations, NRCS, 2012]]</ref>		*Known or projected mining activities and oil or gas extraction” <ref name="NRCS">[[National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations \| National Engineering Handbook: Chapter 2 Engineering Geologic Investigations, NRCS, 2012]]</ref>

	==Best Practices Resources==		==Best Practices Resources==
	{{Document Icon}} [[Design of Small Dams\|Design of Small Dams (Bureau of Reclamation)]]		{{Document Icon}} [[Design of Small Dams \| Design of Small Dams (Bureau of Reclamation)]]
	{{Document Icon}} [[~~Geology~~ National Engineering Handbook: Chapter 2- Engineering Geologic Investigations\|~~Geology~~ National Engineering Handbook: Chapter 2- Engineering Geologic Investigations (Natural Resources Conservation Service)]]		{{Document Icon}} [[National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations \| National Engineering Handbook: Chapter 2 - Engineering Geologic Investigations (Natural Resources Conservation Service)]]
	{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies\|Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies (Federal Energy Regulatory Commission)]]		{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies \| Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 5- Geotechnical Investigations and Studies (Federal Energy Regulatory Commission)]]

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