The influence of temperature on earth pressure cell readings
Vibrating-wire earth pressure cells are often used to measure soil pressure in fills and embankments or contact pressure between soil and buried structures. Instrumentation companies provide each cell with a formula to calculate pressure based on frequency and temperature readings. This paper presen...
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| Veröffentlicht in: | Canadian geotechnical journal 2004-06, Vol.41 (3), p.551-559 |
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| creator | Daigle, Lyne Zhao, Jack Q |
| description | Vibrating-wire earth pressure cells are often used to measure soil pressure in fills and embankments or contact pressure between soil and buried structures. Instrumentation companies provide each cell with a formula to calculate pressure based on frequency and temperature readings. This paper presents the calibration work that was carried out on a series of 76 mm diameter cells and four 228 mm diameter cells with temperatures ranging from 10 to +30 °C with and without the effect of applied pressure. Based on this work and additional data from two field sites, it was found that temperature calibration factors given on the calibration sheet specific to each cell largely underestimated the temperature effect. It was also found that the correction factors were dependent not only on temperature, but also on the pressure applied to the cell. The temperature calibration factor, which is given as a linear correction on the calibration datasheet, becomes parabolic as a pressure is applied on the cell. Based on the findings, recommendations are provided for minimizing the temperature effect on pressure cell readings and improving the accuracy of the temperature calibration factor.Key words: earth pressure cells, soil pressure, temperature calibration, instrumentation. |
| doi_str_mv | 10.1139/t04-004 |
| format | Article |
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Instrumentation companies provide each cell with a formula to calculate pressure based on frequency and temperature readings. This paper presents the calibration work that was carried out on a series of 76 mm diameter cells and four 228 mm diameter cells with temperatures ranging from 10 to +30 °C with and without the effect of applied pressure. Based on this work and additional data from two field sites, it was found that temperature calibration factors given on the calibration sheet specific to each cell largely underestimated the temperature effect. It was also found that the correction factors were dependent not only on temperature, but also on the pressure applied to the cell. The temperature calibration factor, which is given as a linear correction on the calibration datasheet, becomes parabolic as a pressure is applied on the cell. Based on the findings, recommendations are provided for minimizing the temperature effect on pressure cell readings and improving the accuracy of the temperature calibration factor.Key words: earth pressure cells, soil pressure, temperature calibration, instrumentation.</description><identifier>ISSN: 0008-3674</identifier><identifier>EISSN: 1208-6010</identifier><identifier>DOI: 10.1139/t04-004</identifier><identifier>CODEN: CGJOAH</identifier><language>eng</language><publisher>Ottawa, Canada: NRC Research Press</publisher><subject>Calibration ; Earth pressure ; Earth sciences ; Earth, ocean, space ; Embankments ; Engineering and environment geology. 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Instrumentation companies provide each cell with a formula to calculate pressure based on frequency and temperature readings. This paper presents the calibration work that was carried out on a series of 76 mm diameter cells and four 228 mm diameter cells with temperatures ranging from 10 to +30 °C with and without the effect of applied pressure. Based on this work and additional data from two field sites, it was found that temperature calibration factors given on the calibration sheet specific to each cell largely underestimated the temperature effect. It was also found that the correction factors were dependent not only on temperature, but also on the pressure applied to the cell. The temperature calibration factor, which is given as a linear correction on the calibration datasheet, becomes parabolic as a pressure is applied on the cell. Based on the findings, recommendations are provided for minimizing the temperature effect on pressure cell readings and improving the accuracy of the temperature calibration factor.Key words: earth pressure cells, soil pressure, temperature calibration, instrumentation.</description><subject>Calibration</subject><subject>Earth pressure</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Embankments</subject><subject>Engineering and environment geology. Geothermics</subject><subject>Engineering geology</subject><subject>Exact sciences and technology</subject><subject>Instrumentation</subject><subject>Pressure</subject><subject>Soils</subject><subject>Temperature</subject><subject>Temperature effects</subject><issn>0008-3674</issn><issn>1208-6010</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp10FtLwzAYBuAgCs4p_oUiqCBUvxyaZuCNDE8w8GZehzT94jq6tCbthf_ejA0FwasceHi_5CXknMItpXx2N4DIAcQBmVAGKpdA4ZBMANKey1Ick5MY1wBUCMYm5H65wqzxrh3RW8w6lw246TGYYQzp6DM0YVhlfcAYtzcW2zYLaOrGf8RTcuRMG_Fsv07J-9Pjcv6SL96eX-cPi9wIYENey1IJpkxBq0pJWroqvayuXQG2EEgtq8FhWdnCGcMpK62aSeucKCs-YwXjfEoudrl96D5HjINed2PwaaRmlDNVMsESut4hG7oYAzrdh2ZjwpemoLfN6NSMTs0kebmPM9Ga1gXjbRN_uQTGpdq6q53zwab_pybs6kftw3RfuwRv_od_p38DE8N9IA</recordid><startdate>20040601</startdate><enddate>20040601</enddate><creator>Daigle, Lyne</creator><creator>Zhao, Jack Q</creator><general>NRC Research Press</general><general>National Research Council of Canada</general><general>Canadian Science Publishing NRC Research Press</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TG</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8AF</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8FQ</scope><scope>8FV</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L6V</scope><scope>M2P</scope><scope>M3G</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>Q9U</scope></search><sort><creationdate>20040601</creationdate><title>The influence of temperature on earth pressure cell readings</title><author>Daigle, Lyne ; Zhao, Jack Q</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a402t-d678428a51bb8617fb120ddf50c54e1c2d0fe7bc5faa3127c896cff47b3925233</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Calibration</topic><topic>Earth pressure</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Embankments</topic><topic>Engineering and environment geology. Geothermics</topic><topic>Engineering geology</topic><topic>Exact sciences and technology</topic><topic>Instrumentation</topic><topic>Pressure</topic><topic>Soils</topic><topic>Temperature</topic><topic>Temperature effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Daigle, Lyne</creatorcontrib><creatorcontrib>Zhao, Jack Q</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Canadian Business & Current Affairs Database</collection><collection>Canadian Business & Current Affairs Database (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>AUTh Library subscriptions: ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>Science Database</collection><collection>CBCA Reference & Current Events</collection><collection>Engineering Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><jtitle>Canadian geotechnical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Daigle, Lyne</au><au>Zhao, Jack Q</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The influence of temperature on earth pressure cell readings</atitle><jtitle>Canadian geotechnical journal</jtitle><addtitle>Revue canadienne de géotechnique</addtitle><date>2004-06-01</date><risdate>2004</risdate><volume>41</volume><issue>3</issue><spage>551</spage><epage>559</epage><pages>551-559</pages><issn>0008-3674</issn><eissn>1208-6010</eissn><coden>CGJOAH</coden><abstract>Vibrating-wire earth pressure cells are often used to measure soil pressure in fills and embankments or contact pressure between soil and buried structures. Instrumentation companies provide each cell with a formula to calculate pressure based on frequency and temperature readings. This paper presents the calibration work that was carried out on a series of 76 mm diameter cells and four 228 mm diameter cells with temperatures ranging from 10 to +30 °C with and without the effect of applied pressure. Based on this work and additional data from two field sites, it was found that temperature calibration factors given on the calibration sheet specific to each cell largely underestimated the temperature effect. It was also found that the correction factors were dependent not only on temperature, but also on the pressure applied to the cell. The temperature calibration factor, which is given as a linear correction on the calibration datasheet, becomes parabolic as a pressure is applied on the cell. Based on the findings, recommendations are provided for minimizing the temperature effect on pressure cell readings and improving the accuracy of the temperature calibration factor.Key words: earth pressure cells, soil pressure, temperature calibration, instrumentation.</abstract><cop>Ottawa, Canada</cop><pub>NRC Research Press</pub><doi>10.1139/t04-004</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| source | Alma/SFX Local Collection; Canadian Science Publishing |
| subjects | Calibration Earth pressure Earth sciences Earth, ocean, space Embankments Engineering and environment geology. Geothermics Engineering geology Exact sciences and technology Instrumentation Pressure Soils Temperature Temperature effects |
| title | The influence of temperature on earth pressure cell readings |
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