東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Linked to FindBook

Google Book

Amazon

博客來

Fluid Flow Through Granular Soils Treated with Microbial Induced Desaturation and Precipitation.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Fluid Flow Through Granular Soils Treated with Microbial Induced Desaturation and Precipitation./
Author:	Stallings Young, Elizabeth.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
Description:	202 p.
Notes:	Source: Dissertations Abstracts International, Volume: 82-11, Section: B.
Contained By:	Dissertations Abstracts International82-11B.
Subject:	Geotechnology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28415802
ISBN:	9798728269441

Fluid Flow Through Granular Soils Treated with Microbial Induced Desaturation and Precipitation.
Stallings Young, Elizabeth.

Fluid Flow Through Granular Soils Treated with Microbial Induced Desaturation and Precipitation. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 202 p.

Source: Dissertations Abstracts International, Volume: 82-11, Section: B.

Thesis (Ph.D.)--Arizona State University, 2021.

This item must not be sold to any third party vendors.

Microbially induced desaturation (MID) via denitrification is an emerging ground improvement technique to mitigate liquefaction by stimulating the metabolic processes of native bacteria to produce biogas, biominerals and biomass. The production of biogenic gas gradually lowers the degree of saturation of treated soils, thereby dampening the pore pressure response to cyclic loading. However, the production of these metabolic products also alters the hydraulic and mechanical properties of the soil. A series of four tank tests simulating two-dimensional plane strain conditions were performed to evaluate the effectiveness of MID and the resulting changes to the hydraulic properties of the soils. Previous studies have demonstrated the mechanical response for treated homogenous granular soils at the bench scale via vertical injection methods. However, limited knowledge is available on the impact of partial desaturation on the hydraulic properties of the soil, particularly in stratified formations. Treating larger granular soil specimens via lateral injection methods is important for the up-scaling and future commercialization of the process as it may affect injection strategies, and the distribution of substrates and metabolic products. Tank tests were performed on a layered natural soil sediment collected from Richmond, British Columbia, Canada, as well as layered and unlayered laboratory grade Ottawa sands of different grain size distributions. The results demonstrated the effectiveness of treatment upon macro-scale soil properties, and showed how gas formation, migration and entrapment, and resulting degree of desaturation and hydraulic conductivity are affected by micro and macro-stratifications in granular soils.

ISBN: 9798728269441Subjects--Topical Terms:

1018558
Geotechnology.
Subjects--Index Terms:

Biogenic gas

Fluid Flow Through Granular Soils Treated with Microbial Induced Desaturation and Precipitation.
LDR:03007nmm a2200361 4500 001 2342333
005 20220318093115.5
008 241004s2021 ||||||||||||||||| ||eng d
020 $a 9798728269441
035 $a (MiAaPQ)AAI28415802
035 $a AAI28415802
040 $a MiAaPQ $c MiAaPQ
100 1 $a Stallings Young, Elizabeth. $3 3680673
245 1 0 $a Fluid Flow Through Granular Soils Treated with Microbial Induced Desaturation and Precipitation.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2021
300 $a 202 p.
500 $a Source: Dissertations Abstracts International, Volume: 82-11, Section: B.
500 $a Advisor: Zapata, Claudia E.;van Paassen, Leon A.
502 $a Thesis (Ph.D.)--Arizona State University, 2021.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a Microbially induced desaturation (MID) via denitrification is an emerging ground improvement technique to mitigate liquefaction by stimulating the metabolic processes of native bacteria to produce biogas, biominerals and biomass. The production of biogenic gas gradually lowers the degree of saturation of treated soils, thereby dampening the pore pressure response to cyclic loading. However, the production of these metabolic products also alters the hydraulic and mechanical properties of the soil. A series of four tank tests simulating two-dimensional plane strain conditions were performed to evaluate the effectiveness of MID and the resulting changes to the hydraulic properties of the soils. Previous studies have demonstrated the mechanical response for treated homogenous granular soils at the bench scale via vertical injection methods. However, limited knowledge is available on the impact of partial desaturation on the hydraulic properties of the soil, particularly in stratified formations. Treating larger granular soil specimens via lateral injection methods is important for the up-scaling and future commercialization of the process as it may affect injection strategies, and the distribution of substrates and metabolic products. Tank tests were performed on a layered natural soil sediment collected from Richmond, British Columbia, Canada, as well as layered and unlayered laboratory grade Ottawa sands of different grain size distributions. The results demonstrated the effectiveness of treatment upon macro-scale soil properties, and showed how gas formation, migration and entrapment, and resulting degree of desaturation and hydraulic conductivity are affected by micro and macro-stratifications in granular soils.
590 $a School code: 0010.
650 4 $a Geotechnology. $3 1018558
653 $a Biogenic gas
653 $a Denitrification
653 $a Desaturation
653 $a Liquefaction hazard mitigation
653 $a Microbially induced desaturation
690 $a 0428
710 2 $a Arizona State University. $b Civil, Environmental and Sustainable Engineering. $3 3289089
773 0 $t Dissertations Abstracts International $g 82-11B.
790 $a 0010
791 $a Ph.D.
792 $a 2021
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28415802