An experimental study on dynamic response for MICP strengthening liquefiable sands
The technology of bio-gronting is a new technique for soft ground improvement. Many researchers have carried out a large number of experiments and study on this topic. However, few studies have been carried out on the dynamic response of solidified sand samples, such reducing liquefaction in sand. T...
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| Veröffentlicht in: | Earthquake Engineering and Engineering Vibration 2016-12, Vol.15 (4), p.673-679 |
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| creator | Han, Zhiguang Cheng, Xiaohui Ma, Qiang |
| description | The technology of bio-gronting is a new technique for soft ground improvement. Many researchers have carried out a large number of experiments and study on this topic. However, few studies have been carried out on the dynamic response of solidified sand samples, such reducing liquefaction in sand. To study this characteristic of microbial-strengthened liquefiable sandy foundation, a microorganism formula and grouting scheme is applied. After grouting, the solidified samples are tested via dynamic triaxial testing to examine the cyclic performance of solidified sand samples. The results indicate that the solidified sand samples with various strengths can be obtained to meet different engineering requirements, the use of bacteria solution and nutritive salt is reduced, and solidified time is shortened to 1-2 days. Most importantly, in the study of the dynamic response, it is found that the MICP grouting scheme is effective in improving liquefiable sand characteristic, such as liquefaction resistance. |
| doi_str_mv | 10.1007/s11803-016-0357-6 |
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Many researchers have carried out a large number of experiments and study on this topic. However, few studies have been carried out on the dynamic response of solidified sand samples, such reducing liquefaction in sand. To study this characteristic of microbial-strengthened liquefiable sandy foundation, a microorganism formula and grouting scheme is applied. After grouting, the solidified samples are tested via dynamic triaxial testing to examine the cyclic performance of solidified sand samples. The results indicate that the solidified sand samples with various strengths can be obtained to meet different engineering requirements, the use of bacteria solution and nutritive salt is reduced, and solidified time is shortened to 1-2 days. Most importantly, in the study of the dynamic response, it is found that the MICP grouting scheme is effective in improving liquefiable sand characteristic, such as liquefaction resistance.</description><identifier>ISSN: 1671-3664</identifier><identifier>EISSN: 1993-503X</identifier><identifier>DOI: 10.1007/s11803-016-0357-6</identifier><language>eng</language><publisher>Harbin: Institute of Engineering Mechanics, China Earthquake Administration</publisher><subject>Bacteria ; Civil Engineering ; Control ; Dynamic response ; Dynamical Systems ; Earth and Environmental Science ; Earth Sciences ; Experiments ; Geotechnical Engineering & Applied Earth Sciences ; Grouting ; Liquefaction ; Sand ; Sand & gravel ; Sands ; Seismic response ; Soft ground ; Vibration ; 动态响应 ; 固化时间 ; 实验 ; 应用微生物 ; 微生物强化 ; 注浆方案 ; 液化砂土地基 ; 砂土液化</subject><ispartof>Earthquake Engineering and Engineering Vibration, 2016-12, Vol.15 (4), p.673-679</ispartof><rights>Institute of Engineering Mechanics, China Earthquake Administration and Springer-Verlag Berlin Heidelberg 2016</rights><rights>Earthquake Engineering and Engineering Vibration is a copyright of Springer, 2016.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a432t-a356c04937b198686bcff51bc77a3c1f95845369fcc2672dd31c9daff421c4913</citedby><cites>FETCH-LOGICAL-a432t-a356c04937b198686bcff51bc77a3c1f95845369fcc2672dd31c9daff421c4913</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/86651X/86651X.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11803-016-0357-6$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11803-016-0357-6$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Han, Zhiguang</creatorcontrib><creatorcontrib>Cheng, Xiaohui</creatorcontrib><creatorcontrib>Ma, Qiang</creatorcontrib><title>An experimental study on dynamic response for MICP strengthening liquefiable sands</title><title>Earthquake Engineering and Engineering Vibration</title><addtitle>Earthq. Eng. Eng. Vib</addtitle><addtitle>Earthquake Engineering and Engineering Vibration</addtitle><description>The technology of bio-gronting is a new technique for soft ground improvement. Many researchers have carried out a large number of experiments and study on this topic. However, few studies have been carried out on the dynamic response of solidified sand samples, such reducing liquefaction in sand. To study this characteristic of microbial-strengthened liquefiable sandy foundation, a microorganism formula and grouting scheme is applied. After grouting, the solidified samples are tested via dynamic triaxial testing to examine the cyclic performance of solidified sand samples. The results indicate that the solidified sand samples with various strengths can be obtained to meet different engineering requirements, the use of bacteria solution and nutritive salt is reduced, and solidified time is shortened to 1-2 days. Most importantly, in the study of the dynamic response, it is found that the MICP grouting scheme is effective in improving liquefiable sand characteristic, such as liquefaction resistance.</description><subject>Bacteria</subject><subject>Civil Engineering</subject><subject>Control</subject><subject>Dynamic response</subject><subject>Dynamical Systems</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Experiments</subject><subject>Geotechnical Engineering & Applied Earth Sciences</subject><subject>Grouting</subject><subject>Liquefaction</subject><subject>Sand</subject><subject>Sand & gravel</subject><subject>Sands</subject><subject>Seismic response</subject><subject>Soft ground</subject><subject>Vibration</subject><subject>动态响应</subject><subject>固化时间</subject><subject>实验</subject><subject>应用微生物</subject><subject>微生物强化</subject><subject>注浆方案</subject><subject>液化砂土地基</subject><subject>砂土液化</subject><issn>1671-3664</issn><issn>1993-503X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</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>eNqNkUtLAzEUhQdR8PkD3AXduBnNnSQ3k6UUX6AoouAupJmkHZlmajIF--9NaRFxIa7uXXzn3McpimOg50CpvEgANWUlBSwpE7LErWIPlGKloOxtO_cooWSIfLfYT-mdUuQVw73i-TIQ9zl3sZ25MJiOpGHRLEkfSLMMZtZaEl2a9yE54vtIHu5GTxmJLkyGqQttmJCu_Vg435px50gyoUmHxY43XXJHm3pQvF5fvYxuy_vHm7vR5X1pOKuG0jCBlnLF5BhUjTWOrfcCxlZKwyx4JWouGCpvbYWyahoGVjXGe16B5QrYQXG29p3HPq-QBj1rk3VdZ4LrF0lDjVwIhfV_UI4ceMVlRk9_oe_9IoZ8yIqiQkmoMFOwpmzsU4rO63n-oIlLDVSvAtHrQHQORK8C0StNtdakzIaJiz-c_xCdbAZN-zD5yLrvSShpzWomKfsCTBeYIQ</recordid><startdate>20161201</startdate><enddate>20161201</enddate><creator>Han, Zhiguang</creator><creator>Cheng, Xiaohui</creator><creator>Ma, Qiang</creator><general>Institute of Engineering Mechanics, China Earthquake Administration</general><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W94</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7ST</scope><scope>7TG</scope><scope>7TN</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ATCPS</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>M7S</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>SOI</scope><scope>7UA</scope><scope>7SM</scope></search><sort><creationdate>20161201</creationdate><title>An experimental study on dynamic response for MICP strengthening liquefiable sands</title><author>Han, Zhiguang ; 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Eng. Eng. Vib</stitle><addtitle>Earthquake Engineering and Engineering Vibration</addtitle><date>2016-12-01</date><risdate>2016</risdate><volume>15</volume><issue>4</issue><spage>673</spage><epage>679</epage><pages>673-679</pages><issn>1671-3664</issn><eissn>1993-503X</eissn><abstract>The technology of bio-gronting is a new technique for soft ground improvement. Many researchers have carried out a large number of experiments and study on this topic. However, few studies have been carried out on the dynamic response of solidified sand samples, such reducing liquefaction in sand. To study this characteristic of microbial-strengthened liquefiable sandy foundation, a microorganism formula and grouting scheme is applied. After grouting, the solidified samples are tested via dynamic triaxial testing to examine the cyclic performance of solidified sand samples. The results indicate that the solidified sand samples with various strengths can be obtained to meet different engineering requirements, the use of bacteria solution and nutritive salt is reduced, and solidified time is shortened to 1-2 days. Most importantly, in the study of the dynamic response, it is found that the MICP grouting scheme is effective in improving liquefiable sand characteristic, such as liquefaction resistance.</abstract><cop>Harbin</cop><pub>Institute of Engineering Mechanics, China Earthquake Administration</pub><doi>10.1007/s11803-016-0357-6</doi><tpages>7</tpages></addata></record> |
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| subjects | Bacteria Civil Engineering Control Dynamic response Dynamical Systems Earth and Environmental Science Earth Sciences Experiments Geotechnical Engineering & Applied Earth Sciences Grouting Liquefaction Sand Sand & gravel Sands Seismic response Soft ground Vibration 动态响应 固化时间 实验 应用微生物 微生物强化 注浆方案 液化砂土地基 砂土液化 |
| title | An experimental study on dynamic response for MICP strengthening liquefiable sands |
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