我国管袋坝工程技术进展

Advances in technology of geotube dam engineering in China

通过回顾20世纪80年代以来我国具有代表性的管袋坝工程,分析了管袋坝工程设计、工艺装备、技术措施等方面的进展,梳理了伴随工程建设的应用性基础研究成果,展示了我国管袋坝工程取得的技术进步。借鉴国外高强度椭圆形管袋形式,我国工程界因陋就简地走出了以普通强度扁平管袋填筑管袋坝的中国之路,管袋坝在河口蓄淡水库、深水航道整治、沿海港口码头、沿海机场、海堤及防波堤、滩涂围垦等重要基础设施建设中已成为重大或重要工程的组成部分。筑坝区域从潮间露滩处到深水潮流复杂区域;施工操作从以人工为主到以装备为主,直至当前多装备完成深水区域复杂的水下控制施工;管袋坝匡围区域从小到大,以至能实现超大龙口的顺利合龙。

The technological progress of geotube engineering in China was demonstrated through reviewing the representative geotube dams since 1980s. The development of project design,process equipment and technical measures was analyzed and the results of fundamental research for engineering applications were also summarized. Taken the widely used high strength elliptical geotubes abroad as reference, simplified ordinary strength flat geotubes were developed in China. They have been important components in the construction of huge infrastructures such as fresh water reservoirs in estuaries, deep-draft channel improvement, harbors, airports, dikes in coastal areas, wave breakers, beach reclamation, etc. The regions of geotube dam construction range from intertidal zones to complex areas with deep tidal currents. The construction operation of geotube dams has been changed mainly from manpower to equipment and until recently underwater construction in complex deep-water regions can be accomplished by multi-integrated equipment. The encircled area by geotube dams is becoming larger and super large closure gaps can be closed successfully.