不同加固方案试验现场沉降观测资料对比分析

上海浦东国际机场跑道工程软土地基处理方案选择时 ,对排水板堆载预压试验区和强夯加固试验区的系统沉降观测资料进行了对比分析。结果表明,强夯加固后地基的浅部层组压缩性能有明显改善。在软粘土中 ,与天然地基相比 ,设置排水板将使地基沉降明显增大。

COMPARATIVE ANALYSIS OF SETTLEMENT OBSERVATION RECORDS OF VARIED CONSOLIDATION METHOD ON EXPERIMENTAL SITE

In method selection for soft ground treatment of runway of international airport,Pudong,Shanghai,systematic settlement observation records for both water drainage board area on which pre-heaped load is exerted and heavily rammed experimental area were comparatively analyzed.The report showed that the surface compressive property of heavily rammed area was well improved.As to soft soil,comparing with natural foundation,the arrangement of water drainage board resulted in greater settlement.