一般在水工混凝土高大建筑物的施工中，由于受施工条件、机具、设备、方法等因素的影响，混凝土一般要分几次浇筑才能达到设计顶高程。这样在新旧混凝土接茬处，如果施工方法不正确，或处理不得当，极易发生在接茬处漏浆、出台阶俗称“穿裙子”等现象。根据这一混凝土施工中常 Generally in the construction of hydraulic concrete tall buildings, due to the construction conditions, equipment, equipment, methods and other factors, concrete generally divided into several times in order to achieve design roof elevation. This old and new concrete then stubble, if the construction method is not correct, or improper handling, prone to leakage at the stubble at the stage is commonly known as “wearing a skirt” and so on. Under this concrete construction often