A predictive model of unfrozen water content including the influence of pressure
Unfrozen water content has strong control on the permeability, strength and thermal properties of frozen soil. Several techniques have been used to measure unfrozen water content in frozen soil and many models have been developed for its prediction. However, there has been little investigation on th...
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Veröffentlicht in: | Permafrost and periglacial processes 2020-01, Vol.31 (1), p.213-222 |
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description | Unfrozen water content has strong control on the permeability, strength and thermal properties of frozen soil. Several techniques have been used to measure unfrozen water content in frozen soil and many models have been developed for its prediction. However, there has been little investigation on the quantitative analysis of the relationship between pressure and unfrozen water content. With the development of artificial ground freezing techniques and deep mining, knowledge of unfrozen water content in frozen soil under high pressure is critical to the stability of the frozen structures. Here, a new predictive model is presented based on the relationship between chemical potential and unfrozen water content and a previous empirical formula. The simulation results are in good agreement with those from laboratory tests. Both the theoretical analysis and the test results indicated that: (a) the pressure applied to frozen soil reduces the freezing point of bulk water and delays the phase change, and (b) unfrozen water content increases with increasing pressure, and at higher pressures the change is greater. The results improve our understanding of the physical and mechanical properties of freezing soil under pressure for artificial ground freezing applications and deep mining engineering. |
doi_str_mv | 10.1002/ppp.2037 |
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Several techniques have been used to measure unfrozen water content in frozen soil and many models have been developed for its prediction. However, there has been little investigation on the quantitative analysis of the relationship between pressure and unfrozen water content. With the development of artificial ground freezing techniques and deep mining, knowledge of unfrozen water content in frozen soil under high pressure is critical to the stability of the frozen structures. Here, a new predictive model is presented based on the relationship between chemical potential and unfrozen water content and a previous empirical formula. The simulation results are in good agreement with those from laboratory tests. Both the theoretical analysis and the test results indicated that: (a) the pressure applied to frozen soil reduces the freezing point of bulk water and delays the phase change, and (b) unfrozen water content increases with increasing pressure, and at higher pressures the change is greater. The results improve our understanding of the physical and mechanical properties of freezing soil under pressure for artificial ground freezing applications and deep mining engineering.</description><identifier>ISSN: 1045-6740</identifier><identifier>EISSN: 1099-1530</identifier><identifier>DOI: 10.1002/ppp.2037</identifier><language>eng</language><publisher>Chichester: Wiley Subscription Services, Inc</publisher><subject>bulk water ; Chemical potential ; Computer simulation ; Empirical analysis ; Freezing ; Freezing point ; Frozen ground ; Ground freezing ; High pressure ; Laboratory tests ; Mechanical properties ; Melting points ; Mining ; Mining engineering ; Moisture content ; Organic chemistry ; Permeability ; Prediction models ; Pressure ; Soil ; soil freezing characteristic curve ; Soil mechanics ; Soil permeability ; Soil properties ; Soil stability ; Soil water ; Structural stability ; Theoretical analysis ; Thermal properties ; Thermodynamic properties ; unfrozen water content ; Water content</subject><ispartof>Permafrost and periglacial processes, 2020-01, Vol.31 (1), p.213-222</ispartof><rights>2020 John Wiley & Sons, Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a3167-963f1af4012fd5302c46b34250f8e5a025d108e7cf78b147c679e06dd059a8743</citedby><cites>FETCH-LOGICAL-a3167-963f1af4012fd5302c46b34250f8e5a025d108e7cf78b147c679e06dd059a8743</cites><orcidid>0000-0001-7995-615X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fppp.2037$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fppp.2037$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Ming, Feng</creatorcontrib><creatorcontrib>Li, Dong‐qing</creatorcontrib><creatorcontrib>Liu, Yu‐hang</creatorcontrib><title>A predictive model of unfrozen water content including the influence of pressure</title><title>Permafrost and periglacial processes</title><description>Unfrozen water content has strong control on the permeability, strength and thermal properties of frozen soil. Several techniques have been used to measure unfrozen water content in frozen soil and many models have been developed for its prediction. However, there has been little investigation on the quantitative analysis of the relationship between pressure and unfrozen water content. With the development of artificial ground freezing techniques and deep mining, knowledge of unfrozen water content in frozen soil under high pressure is critical to the stability of the frozen structures. Here, a new predictive model is presented based on the relationship between chemical potential and unfrozen water content and a previous empirical formula. The simulation results are in good agreement with those from laboratory tests. Both the theoretical analysis and the test results indicated that: (a) the pressure applied to frozen soil reduces the freezing point of bulk water and delays the phase change, and (b) unfrozen water content increases with increasing pressure, and at higher pressures the change is greater. The results improve our understanding of the physical and mechanical properties of freezing soil under pressure for artificial ground freezing applications and deep mining engineering.</description><subject>bulk water</subject><subject>Chemical potential</subject><subject>Computer simulation</subject><subject>Empirical analysis</subject><subject>Freezing</subject><subject>Freezing point</subject><subject>Frozen ground</subject><subject>Ground freezing</subject><subject>High pressure</subject><subject>Laboratory tests</subject><subject>Mechanical properties</subject><subject>Melting points</subject><subject>Mining</subject><subject>Mining engineering</subject><subject>Moisture content</subject><subject>Organic chemistry</subject><subject>Permeability</subject><subject>Prediction models</subject><subject>Pressure</subject><subject>Soil</subject><subject>soil freezing characteristic curve</subject><subject>Soil mechanics</subject><subject>Soil permeability</subject><subject>Soil properties</subject><subject>Soil stability</subject><subject>Soil water</subject><subject>Structural stability</subject><subject>Theoretical analysis</subject><subject>Thermal properties</subject><subject>Thermodynamic properties</subject><subject>unfrozen water content</subject><subject>Water content</subject><issn>1045-6740</issn><issn>1099-1530</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp1kE1PwzAMhiMEEmMg8RMiceHS4TRJ0x6niS9pEj3AOcpSBzp1aUlapvHraRlXTralx6-th5BrBgsGkN51XbdIgasTMmNQFAmTHE6nXsgkUwLOyUWMWwDIORMzUi5pF7CqbV9_Id21FTa0dXTwLrTf6One9BiobX2Pvqe1t81Q1f6d9h84Tq4Z0FucNsaUGIeAl-TMmSbi1V-dk7eH-9fVU7J-eXxeLdeJ4SxTSZFxx4wTwFJXjS-mVmQbLlIJLkdpIJUVgxyVdSrfMKFspgqErKpAFiZXgs_JzTG3C-3ngLHX23YIfjypUy4LnoPK5UjdHikb2hgDOt2FemfCQTPQky89-tKTrxFNjui-bvDwL6fLsvzlfwCQU2tB</recordid><startdate>202001</startdate><enddate>202001</enddate><creator>Ming, Feng</creator><creator>Li, Dong‐qing</creator><creator>Liu, Yu‐hang</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7TG</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope><orcidid>https://orcid.org/0000-0001-7995-615X</orcidid></search><sort><creationdate>202001</creationdate><title>A predictive model of unfrozen water content including the influence of pressure</title><author>Ming, Feng ; Li, Dong‐qing ; Liu, Yu‐hang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a3167-963f1af4012fd5302c46b34250f8e5a025d108e7cf78b147c679e06dd059a8743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>bulk water</topic><topic>Chemical potential</topic><topic>Computer simulation</topic><topic>Empirical analysis</topic><topic>Freezing</topic><topic>Freezing point</topic><topic>Frozen ground</topic><topic>Ground freezing</topic><topic>High pressure</topic><topic>Laboratory tests</topic><topic>Mechanical properties</topic><topic>Melting points</topic><topic>Mining</topic><topic>Mining engineering</topic><topic>Moisture content</topic><topic>Organic chemistry</topic><topic>Permeability</topic><topic>Prediction models</topic><topic>Pressure</topic><topic>Soil</topic><topic>soil freezing characteristic curve</topic><topic>Soil mechanics</topic><topic>Soil permeability</topic><topic>Soil properties</topic><topic>Soil stability</topic><topic>Soil water</topic><topic>Structural stability</topic><topic>Theoretical analysis</topic><topic>Thermal properties</topic><topic>Thermodynamic properties</topic><topic>unfrozen water content</topic><topic>Water content</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ming, Feng</creatorcontrib><creatorcontrib>Li, Dong‐qing</creatorcontrib><creatorcontrib>Liu, Yu‐hang</creatorcontrib><collection>CrossRef</collection><collection>Aqualine</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Permafrost and periglacial processes</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ming, Feng</au><au>Li, Dong‐qing</au><au>Liu, Yu‐hang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A predictive model of unfrozen water content including the influence of pressure</atitle><jtitle>Permafrost and periglacial processes</jtitle><date>2020-01</date><risdate>2020</risdate><volume>31</volume><issue>1</issue><spage>213</spage><epage>222</epage><pages>213-222</pages><issn>1045-6740</issn><eissn>1099-1530</eissn><abstract>Unfrozen water content has strong control on the permeability, strength and thermal properties of frozen soil. Several techniques have been used to measure unfrozen water content in frozen soil and many models have been developed for its prediction. However, there has been little investigation on the quantitative analysis of the relationship between pressure and unfrozen water content. With the development of artificial ground freezing techniques and deep mining, knowledge of unfrozen water content in frozen soil under high pressure is critical to the stability of the frozen structures. Here, a new predictive model is presented based on the relationship between chemical potential and unfrozen water content and a previous empirical formula. The simulation results are in good agreement with those from laboratory tests. Both the theoretical analysis and the test results indicated that: (a) the pressure applied to frozen soil reduces the freezing point of bulk water and delays the phase change, and (b) unfrozen water content increases with increasing pressure, and at higher pressures the change is greater. The results improve our understanding of the physical and mechanical properties of freezing soil under pressure for artificial ground freezing applications and deep mining engineering.</abstract><cop>Chichester</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/ppp.2037</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0001-7995-615X</orcidid></addata></record> |
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subjects | bulk water Chemical potential Computer simulation Empirical analysis Freezing Freezing point Frozen ground Ground freezing High pressure Laboratory tests Mechanical properties Melting points Mining Mining engineering Moisture content Organic chemistry Permeability Prediction models Pressure Soil soil freezing characteristic curve Soil mechanics Soil permeability Soil properties Soil stability Soil water Structural stability Theoretical analysis Thermal properties Thermodynamic properties unfrozen water content Water content |
title | A predictive model of unfrozen water content including the influence of pressure |
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