Analysis about Effect of Hollow on Time-Frequency Characteristic of Surface Vibration Signal
In blasting excavation of shallow tunnel, the surface vibration of excavated tunnel can be amplified due to effect of hollow. This effect is an important factor for safety of surface buildings. Based on the measured data of one tunnel excavation project, combining wavelet analysis and AOK time-frequ...
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| Veröffentlicht in: | Applied Mechanics and Materials 2014-02, Vol.533 (Modern Tendencies in Engineering Sciences), p.181-186 |
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| container_issue | Modern Tendencies in Engineering Sciences |
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| creator | Kang, Qiang Zhao, Ming Sheng Tao, Tie Jun Chi, En An |
| description | In blasting excavation of shallow tunnel, the surface vibration of excavated tunnel can be amplified due to effect of hollow. This effect is an important factor for safety of surface buildings. Based on the measured data of one tunnel excavation project, combining wavelet analysis and AOK time-frequency distribution method, the surface vibration signals in front and rear position of working face are processed into different frequency bands. Taking PPV, dominant frequency, d7 (7.8125-15.625 Hz) band energy ratio and d7 (7.8125-15.625 Hz) band energy duration as indexes, the effect of hollow on time-frequency characteristics of surface vibration signal is studied in this article. The results show that, affected by the hollow in excavated region, the PPV and dominant frequency increase, and the d7 (7.8125-15.625 Hz) band energy shows fluctuant ratio of total energy and an increase of band energy duration. The results show that the hollow influence on the frequency characteristics of the surface vibration signals comprehensively, and also provide an analytical basis for anti-vibration and vibration reduction study from the angle of energy. |
| doi_str_mv | 10.4028/www.scientific.net/AMM.533.181 |
| format | Article |
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This effect is an important factor for safety of surface buildings. Based on the measured data of one tunnel excavation project, combining wavelet analysis and AOK time-frequency distribution method, the surface vibration signals in front and rear position of working face are processed into different frequency bands. Taking PPV, dominant frequency, d7 (7.8125-15.625 Hz) band energy ratio and d7 (7.8125-15.625 Hz) band energy duration as indexes, the effect of hollow on time-frequency characteristics of surface vibration signal is studied in this article. The results show that, affected by the hollow in excavated region, the PPV and dominant frequency increase, and the d7 (7.8125-15.625 Hz) band energy shows fluctuant ratio of total energy and an increase of band energy duration. The results show that the hollow influence on the frequency characteristics of the surface vibration signals comprehensively, and also provide an analytical basis for anti-vibration and vibration reduction study from the angle of energy.</description><identifier>ISSN: 1660-9336</identifier><identifier>ISSN: 1662-7482</identifier><identifier>ISBN: 9783038350453</identifier><identifier>ISBN: 3038350451</identifier><identifier>EISSN: 1662-7482</identifier><identifier>DOI: 10.4028/www.scientific.net/AMM.533.181</identifier><language>eng</language><publisher>Zurich: Trans Tech Publications Ltd</publisher><subject>Blasting ; Excavation ; Frequency bands ; Mathematical analysis ; Position measurement ; Tunnels (transportation) ; Vibration ; Wavelet analysis</subject><ispartof>Applied Mechanics and Materials, 2014-02, Vol.533 (Modern Tendencies in Engineering Sciences), p.181-186</ispartof><rights>2014 Trans Tech Publications Ltd</rights><rights>Copyright Trans Tech Publications Ltd. Feb 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c328t-738df4660b93f52c4335129a38bfda044e2691f4ea4baf987e1e6279434128403</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttps://www.scientific.net/Image/TitleCover/3056?width=600</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids></links><search><creatorcontrib>Kang, Qiang</creatorcontrib><creatorcontrib>Zhao, Ming Sheng</creatorcontrib><creatorcontrib>Tao, Tie Jun</creatorcontrib><creatorcontrib>Chi, En An</creatorcontrib><title>Analysis about Effect of Hollow on Time-Frequency Characteristic of Surface Vibration Signal</title><title>Applied Mechanics and Materials</title><description>In blasting excavation of shallow tunnel, the surface vibration of excavated tunnel can be amplified due to effect of hollow. This effect is an important factor for safety of surface buildings. Based on the measured data of one tunnel excavation project, combining wavelet analysis and AOK time-frequency distribution method, the surface vibration signals in front and rear position of working face are processed into different frequency bands. Taking PPV, dominant frequency, d7 (7.8125-15.625 Hz) band energy ratio and d7 (7.8125-15.625 Hz) band energy duration as indexes, the effect of hollow on time-frequency characteristics of surface vibration signal is studied in this article. The results show that, affected by the hollow in excavated region, the PPV and dominant frequency increase, and the d7 (7.8125-15.625 Hz) band energy shows fluctuant ratio of total energy and an increase of band energy duration. The results show that the hollow influence on the frequency characteristics of the surface vibration signals comprehensively, and also provide an analytical basis for anti-vibration and vibration reduction study from the angle of energy.</description><subject>Blasting</subject><subject>Excavation</subject><subject>Frequency bands</subject><subject>Mathematical analysis</subject><subject>Position measurement</subject><subject>Tunnels (transportation)</subject><subject>Vibration</subject><subject>Wavelet analysis</subject><issn>1660-9336</issn><issn>1662-7482</issn><issn>1662-7482</issn><isbn>9783038350453</isbn><isbn>3038350451</isbn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqNkUFLHDEUx0Ntodb6HQYK4mXGJO_NTHKRLotWQelB21MhZGJSI7MTm2RY9tubdQuKJ0_vkF_-7__4EXLEaIOUi5P1et0k4-2UvfOmmWw-WVxfNy1AwwT7QPZZ1_G6R8H3yKHsBVAQ0FJs4ePzG60lQPeZfEnpgdIOGYp98mcx6XGTfKr0EOZcnTlnTa6Cqy7COIZ1Fabq1q9sfR7tv9lOZlMt73XUJtvoU_Zmi97M0Wljq99-iDr78uXG_y25X8knp8dkD__PA_Lr_Ox2eVFf_fxxuVxc1Qa4yHUP4s5hKThIcC03CNAyLjWIwd1pimh5J5lDq3HQToreMtvxXiIg4wIpHJDjXe5jDKVkymrlk7HjqCcb5qRYW47Flkle0G9v0Icwx9J1S1FgSGWHhTrdUSaGlKJ16jH6lY4bxajaylBFhnqRoYoMVWSoIkMVGSXg-y4gRz2lbM39qz3vi3gC2kKXxw</recordid><startdate>20140201</startdate><enddate>20140201</enddate><creator>Kang, Qiang</creator><creator>Zhao, Ming Sheng</creator><creator>Tao, Tie Jun</creator><creator>Chi, En An</creator><general>Trans Tech Publications Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BFMQW</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>KR7</scope><scope>L6V</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>20140201</creationdate><title>Analysis about Effect of Hollow on Time-Frequency Characteristic of Surface Vibration Signal</title><author>Kang, Qiang ; Zhao, Ming Sheng ; Tao, Tie Jun ; Chi, En An</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-738df4660b93f52c4335129a38bfda044e2691f4ea4baf987e1e6279434128403</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Blasting</topic><topic>Excavation</topic><topic>Frequency bands</topic><topic>Mathematical analysis</topic><topic>Position measurement</topic><topic>Tunnels (transportation)</topic><topic>Vibration</topic><topic>Wavelet analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kang, Qiang</creatorcontrib><creatorcontrib>Zhao, Ming Sheng</creatorcontrib><creatorcontrib>Tao, Tie Jun</creatorcontrib><creatorcontrib>Chi, En An</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Continental Europe Database</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Civil Engineering Abstracts</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><jtitle>Applied Mechanics and Materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kang, Qiang</au><au>Zhao, Ming Sheng</au><au>Tao, Tie Jun</au><au>Chi, En An</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Analysis about Effect of Hollow on Time-Frequency Characteristic of Surface Vibration Signal</atitle><jtitle>Applied Mechanics and Materials</jtitle><date>2014-02-01</date><risdate>2014</risdate><volume>533</volume><issue>Modern Tendencies in Engineering Sciences</issue><spage>181</spage><epage>186</epage><pages>181-186</pages><issn>1660-9336</issn><issn>1662-7482</issn><eissn>1662-7482</eissn><isbn>9783038350453</isbn><isbn>3038350451</isbn><abstract>In blasting excavation of shallow tunnel, the surface vibration of excavated tunnel can be amplified due to effect of hollow. This effect is an important factor for safety of surface buildings. Based on the measured data of one tunnel excavation project, combining wavelet analysis and AOK time-frequency distribution method, the surface vibration signals in front and rear position of working face are processed into different frequency bands. Taking PPV, dominant frequency, d7 (7.8125-15.625 Hz) band energy ratio and d7 (7.8125-15.625 Hz) band energy duration as indexes, the effect of hollow on time-frequency characteristics of surface vibration signal is studied in this article. The results show that, affected by the hollow in excavated region, the PPV and dominant frequency increase, and the d7 (7.8125-15.625 Hz) band energy shows fluctuant ratio of total energy and an increase of band energy duration. The results show that the hollow influence on the frequency characteristics of the surface vibration signals comprehensively, and also provide an analytical basis for anti-vibration and vibration reduction study from the angle of energy.</abstract><cop>Zurich</cop><pub>Trans Tech Publications Ltd</pub><doi>10.4028/www.scientific.net/AMM.533.181</doi><tpages>6</tpages></addata></record> |
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| subjects | Blasting Excavation Frequency bands Mathematical analysis Position measurement Tunnels (transportation) Vibration Wavelet analysis |
| title | Analysis about Effect of Hollow on Time-Frequency Characteristic of Surface Vibration Signal |
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