真空降水和低能量强夯组合加固滩涂地基

         陆跃飞

             (上海市南汇区重大工程办公室)

摘要：近海滩涂地基土，强度低、沉降量大，利用真空降水，使土体中超孔隙水压力瞬时消散，孔隙率增大，在低能量强夯的动力作用下，地基的压缩使土中自由水扩散。降水和夯击力达到了快速地基土的固结，提高了地基的承载力。

关键词：海滩沉积土；真空降水；低能量强夯；地基土加固

Study on Strengthen of Mudflat by Combination of Vacuum pumping

 & Low Energy Heavy Tamper

LU Yao-fei

Abstract: Coastal foundation soil is in low strength and big settlement. Vacuum pumping is adapted to instantaneous clear off water pressure in earth and accrete voids content. Effected by low energy heavy tamper, compression of embankment causes water in earth diffusing. Vacuum pumping and tamper causes rapid consolidation of embankment and improve its bearing capacity.

Key words: coastal settled earth, vacuum pumping, low energy heavy tamper, embankment consolidation