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排水固结法加固软基有垫层排水和砂井排水两类方法。采用的计算方法多数仅考虑地基加固层的平均固结度与强度的增长。砂井地基主要是考虑水平向排水固结,对竖向排水不予考虑或考虑竖向排水的平均固结度,故与实际情况有差异。本文改进为计算地基不同部位的任一深度和任一时间的固结度,更符合地基的实际情况。 籍助电算研制出简便的计算图表。对垫层排水处理海堤软基与排水砂井处理深水防波堤软基两项工程,进行计算,并与实际观测资料作比较,结果表明,两者较为接近。
Drainage consolidation method is used to reinforce the soft foundation with two methods: cushion drainage and sand drain. Most of the calculation methods used only consider the increase of the average consolidation degree and strength of the ground reinforcement layer. The sand well foundation mainly considers the horizontal drainage consolidation, and the vertical drainage does not consider or consider the average degree of consolidation of vertical drainage, so it is different from the actual situation. This paper improves the calculation of the depth of any part of the foundation and the degree of consolidation at any time, which is more in line with the actual situation of the foundation. The help computer developed a simple calculation chart. The calculation of the two projects of the seabed soft base and drainage sand wells in the treatment of the soft foundation of deepwater breakwaters was carried out and compared with the actual observational data. The results show that the two are relatively close.