围垦堤防施工技术研究

在大量工程实地调查、文献资料分析的基础上,运用现场试验、室内试验和理论计算分析相结合的方法,对围垦堤防施工技术进行研究:①复杂波浪水流环境下围垦堤防管袋裸坝施工程序优化;②围垦堤防管袋裸坝快速施工技术,包括充填沙土管袋脱水固结技术;③波浪作用下围垦堤防扁平管袋裸坝施工期水动力稳定性;④复杂条件下围垦堤防管袋裸坝信息化施工技术;⑤围垦堤坝龙口合龙的各项水力要素及安全措施。研究将提出一整套围垦堤防高效快速施工技术,为沿海地区围垦工程建设提供科学依据和基础。

Construction techniques for reclamation dikes in coastal areas

Based on the plenty of field investigations and literatures,the construction techniques for reclamation dikes in coastal areas are studied by means of field tests,laboratory experiments and theoretical analysis.The main research items include the following aspects:(1) optimization of dike construction program under complex waves and tidal currents;(2) rapid dewatering consolidation technology for fine-grained material-filled geotubes;(3) hydrodynamic stability of flat geotube dams under waves and tidal currents during construction period;(4) informational construction technology for dikes under complex conditions;(5) hydraulic factors and safety control measures for closure of cofferdam gap of reclamation dikes.A set of high-efficient and rapid construction technology for reclamation dikes will be proposed so as to provide scientific theory basis for the construction of geotube dams in coastal areas.