一、前言用人工块体做防波堤的护面层是世界各国广为采用的方法。目前,人工块体已有50余种。其中扭工字块体(Dolos)仍然以重量轻、消浪效果好和稳定性高等优点被国内外广泛采用。对用扭工字块体护面的防波堤的稳定问题,国内外学者曾就块体重量、堤面坡度、波高、周期等因素的影响进行过大量的研究工 First, the foreword The artificial block body to do breakwater surfacing is widely used in countries around the world. At present, there are more than 50 artificial blocks. Among them, the Dolos block is still widely adopted both at home and abroad because of its advantages of light weight, good wave elimination effect and high stability. For the stability of breakwaters with torsion block, a great deal of research work has been done by domestic and foreign scholars on the influence of block weight, embankment slope, wave height, period and other factors