路基工程
路基工程
로기공정
SUBGRADE ENGINEERING
2012年
5期
27-31
,共5页
高真空击密法%吹填土%饱和粉土%地基处理%施工工艺
高真空擊密法%吹填土%飽和粉土%地基處理%施工工藝
고진공격밀법%취전토%포화분토%지기처리%시공공예
high vacuum densification method (HVDM)%dredger fill%saturated silt%foundation treatment%construction techniques
结合杭州湾某市政道路刚刚吹填完成的饱和粉土地基的加固工程，基于深厚吹填饱和粉土的工程特性，对高真空击密法的适用性和有效性进行了现场研究，对施工过程中的地下水位、地面沉降、超孔隙水压力进行了实时监测和分析，并对加固后的含水率、静力触探和地基承载力进行了效果检测。结果表明：采用高真空击密法可有效加固吹填饱和粉土地基，大幅提高力学性能，效果显著，该方法为我国沿海地区类似吹填土地基的加固问题提供了新的途径和设计依据。
結閤杭州灣某市政道路剛剛吹填完成的飽和粉土地基的加固工程，基于深厚吹填飽和粉土的工程特性，對高真空擊密法的適用性和有效性進行瞭現場研究，對施工過程中的地下水位、地麵沉降、超孔隙水壓力進行瞭實時鑑測和分析，併對加固後的含水率、靜力觸探和地基承載力進行瞭效果檢測。結果錶明：採用高真空擊密法可有效加固吹填飽和粉土地基，大幅提高力學性能，效果顯著，該方法為我國沿海地區類似吹填土地基的加固問題提供瞭新的途徑和設計依據。
결합항주만모시정도로강강취전완성적포화분토지기적가고공정，기우심후취전포화분토적공정특성，대고진공격밀법적괄용성화유효성진행료현장연구，대시공과정중적지하수위、지면침강、초공극수압력진행료실시감측화분석，병대가고후적함수솔、정력촉탐화지기승재력진행료효과검측。결과표명：채용고진공격밀법가유효가고취전포화분토지기，대폭제고역학성능，효과현저，해방법위아국연해지구유사취전토지기적가고문제제공료신적도경화설계의거。
Combined with the saturated silt foundation reinforcement project completed by hydraulic reclamation in Hangzhou Bay, and based on the specific characteristics of the deep saturated dredger silt soil, the feasibility and validity of the high vacuum densification method (HVDM) is investigated in the field. The groundwater level, ground settlement and excess pore pressure during the construction is monitored and analyzed at real time; and the water ratio, CPT and the bearing capability after the reinforcement have also been inspected. The results show that HVDM can effectively strengthen saturated dredger silt foundation and significantly improve the mechanical properties thereof, thus provide a new practical way and design basis for similar projects in offshore areas in China.
