三峡杨家湾港码头桩基施工工艺及进度控制

杨家湾港口集装箱件杂货码头是三峡工程施工期主材运输的水路中转站，为桩基板梁式结构。码头桩基采用钢管桩和钻孔灌注桩两种型式。由于码头位于岗岩地区，钢管桩沉桩在施工增加了初沉后的截短、钻孔、接长、复打等施工工序，钻素不相识工艺上增加了大孤石及块球体处理施工工序，大大增国了桩基施工难度。在施工、设计、为主和监理四方的共同努力下，工程进度得到有效控制。码头桩基工程于１９９５年２月２５日开始施工，１０月３０

Constructional technique and schedule control of piled foundation of TGP Yangjiawan wharf

The Yangjiawan container wharf,a transfer station for main construction materials during TGP construction,is of a slaf and girder structure based on steel tube piles and filling piles.As the wharf is founded on granite rock,during the pile-sinking operation for steel tube piles, additional construction procedures such as tube cutting,hole drilling,tube prolonging and re-piling etc.were conducted; and for filling piles,penetrating through block stones was encountered.Thus,these have brought more difficulties to piled foundation construction.However,because of common efforts made by four sides of design,construction,owner and supervision,the construction schedule was effectively controlled.This project began to construct on February 25,1995 and was basically completed on October 30,1995,with two ship berths commissioned on contract schedule. ln this project,the experience in constructing the piled foundation on granite rock has been accumulated.