港工技术
港工技術
항공기술
PORT ENGINEERING TECHNOLOGY
2014年
5期
72-75
,共4页
分层吹填%分层碾压%水平向排水板%承载力%抗震液化%地基强度%工后沉降
分層吹填%分層碾壓%水平嚮排水闆%承載力%抗震液化%地基彊度%工後沉降
분층취전%분층년압%수평향배수판%승재력%항진액화%지기강도%공후침강
dredger fill by layers%compacting by layers%horizontal drain boards%bearing capacity%seis-mic liquefaction resistance%foundation strength%post settlement
南通狼山港区三期集装箱泊位堆场的陆域系由围垦吹填形成，地基加固采用了排水板振动碾压联合处理新技术。天然地基竖向排水板为梅花形分布，吹填砂层中铺设水平向排水板并采用分层吹填、分层铺设、分层碾压施工技术。陆域4.27万m2的地基沉降变形大部分发生在天然淤泥质粘土层中，并在地基处理后的第6个月间趋于稳定。经联合处理后的吹填砂层密实度达到稍密、中密，满足了地基抗震液化的标准及其要求。堆场地基处理竣工至今已安全使用11年，验证了吹填地基排水板振动碾压联合处理新技术的可行性。
南通狼山港區三期集裝箱泊位堆場的陸域繫由圍墾吹填形成，地基加固採用瞭排水闆振動碾壓聯閤處理新技術。天然地基豎嚮排水闆為梅花形分佈，吹填砂層中鋪設水平嚮排水闆併採用分層吹填、分層鋪設、分層碾壓施工技術。陸域4.27萬m2的地基沉降變形大部分髮生在天然淤泥質粘土層中，併在地基處理後的第6箇月間趨于穩定。經聯閤處理後的吹填砂層密實度達到稍密、中密，滿足瞭地基抗震液化的標準及其要求。堆場地基處理竣工至今已安全使用11年，驗證瞭吹填地基排水闆振動碾壓聯閤處理新技術的可行性。
남통랑산항구삼기집장상박위퇴장적륙역계유위은취전형성，지기가고채용료배수판진동년압연합처리신기술。천연지기수향배수판위매화형분포，취전사층중포설수평향배수판병채용분층취전、분층포설、분층년압시공기술。륙역4.27만m2적지기침강변형대부분발생재천연어니질점토층중，병재지기처리후적제6개월간추우은정。경연합처리후적취전사층밀실도체도초밀、중밀，만족료지기항진액화적표준급기요구。퇴장지기처리준공지금이안전사용11년，험증료취전지기배수판진동년압연합처리신기술적가행성。
The stockyard of Nantong Langshan harbor container terminal Phase-3 project was formed by sea reclamation and dredger fill,and the ground was reinforced by using new technique of drain board combined with vibrating compaction method. Natural ground was improved by laying vertical drain boards in the shape of quincunx, and the dredger sand layer inserted with horizontal drain boards was dredged,laid and compacted by layer. The most settlement deformation of 42 700 m2 land area occurred in natural silt clay stratum,which tended toward stabilization in the sixth month after foundation treatment. The treated dredger sand layer was of slight or medium degree of density which could meet the requirements for seismic liquefaction resistance. The stockyard has been safely used for 11 years since relevant foundation treatment was completed,which verifies the feasibility of new technology of drain board combined with vibrating compaction on the dredger fill foundation.
