桩基水平力计算的推荐方法

Recommending Methods of Calculating Foundation Columns Horizontal Force

根据横向受荷桩的工作性状与破坏机理,可采用不同的计算方法进行求解。现场试桩是目前工程界直接了解桩在水平荷载作用下工作机理的主要手段。本文对近年来应用于建筑、水利、港口、公路、石化等方面的120根钢筋砼预制桩及160根灌注桩的试桩资料,应用假定的土抗力系数沿桩长不同分布图式的计算方法(如m法、c法、张法与k法),来对比分析各种计算方法与实际的符合程度。分析结果表明,m法和c法较接近实际。本文推荐m法。

Testing columns in site is a main means to directly understand the working mechanism of columns under the action of horizontal loads in present project circles.Regarding 120 reinforced concrete prefabricated columns and 160 pouring columns used in building,water conservancy,port etc. in recent years as the material of testing columns, we use calculating methods supposing soil stress coefficients distributes differently along the length of columns, such as M method, C method, Zhangs methed and K method, to compare various calculating methods to practical tally degree and analyze them.The analyzing result shows that M method and C method are relatively close to the practicle. So this article recommends M method.