一、前言解放以后,我国建设(包括扩建)了30多座船坞。经调查位于岩基上的而且坞墙是混合式型式的船坞约有5座,即山海关船厂1＃、2＃坞、大连船厂北坞、4821厂船坞(部分坞墙是混合式的)。4802厂船坞。另外,1200工程1＃坞其中有一段坞墙也是混合式的。混合式坞墙的后趾底标高以上部分是一个“L”形重力式档土墙, I. Introduction After the liberation, more than 30 docks have been built (including expansion) in our country. After investigation, there are about 5 docks on the rocky foundation with mixed docks, namely Shanhaiguan Shipyard # 1 and # 2 docks, Dalian Shipyard North Dock and Shipyard 4821 Dockyard (some dock walls are mixed). 4802 Factory Dock. In addition, the 1200 project 1 # dock where a dock wall is also mixed. Mixed dock wall at the bottom of the soles of the above part of a “L” -shaped gravity arch wall,