复杂条件下呼吸型装配式生态驳岸施工技术

Construction technology of respiration-type fabricated ecological revetment under complex conditions

新型的呼吸型装配式生态驳岸结构在运输条件受限、施工期间不断航要求和高压线限高等复杂环境条件下,存在构件吊运安装、沉桩精度控制、桩头与预制底板连接和底板安装平整度等方面的技术难题。通过对各种复杂条件对比分析,提出自平衡式吊装船的吊装工艺、植桩式定位架工艺、留筋式套打法工艺和垫层坐浆工艺等技术措施,较好地解决了该新型结构在复杂环境条件下的施工技术难题。

Under complex conditions,such as limited transportation conditions,continuous navigation during construction,and high voltage line height limit,the new respiratory-type prefabricated ecological revetment structure construction faces technical difficulties in terms of component lifting and installation,pile sinking accuracy control,connection between piles and prefabricated bottom plate,and flatness of prefabricated bottom plate installation.This paper carries out a comparative analysis of various complex conditions and puts forward the technical measures such as the lifting process of a self-balance lifting vessel,the positioning frame process of pile planting,the pile driving process of the reserved steel bars at the pile top and steel sleeve,and the technology of the cushion construction,which can better solve the technical problems of this new structure during construction under complex conditions.