软基快速筑堤关键技术的研究与应用

Research and Application of Key Technology About Rapid Embankment on Soft Foundation

软弱地基及超软弱地基上,海堤建筑存在稳定性差、工期长、无法机械化快速大规模施工、堤身土石方堆不上去、堵口合拢困难等问题。经调查研究、观测分析、模型试验和工程实践,形成一套新的堤坝快速构筑施工方法与工艺。根据软基和堤坝的变化规律,打破传统软基堤坝中被动控制的设计施工方法。统筹兼顾软基承载力与快速筑堤过程中的时间、空间关系,处理好安全、经济、高效的关系,取得了明显效益。适用于围海、港口、路基、码头、人工岛等建筑。具有工期短,速度快,造价低,安全可靠等特点。

On the soft foundation and super soft foundation, traditional method of seawall construction has a lot of disadvantages such as poor stability, long construction period, unable to mechanization construction, hard for earthwork up to the body of dams and getting close up. After investigation, analysis, model test and engineering practice, a new construction method on building dam is proposed. The new construction method breaks up the traditional passive control dam construction method. The new method proposes new design of dam and formula to calculate the bearing capacity of soft foundation. And it can both consider soft foundation and the construction time and space, and has achieved remarkable economic benefits in practice. The new method can be widely applied to building seawalls, wharfs, roadbed, piers, and artificial island, with advantages, llke short construction period, fast construction, low construction cost, safe and reliable.