在地形陡峻的深谷山坡及岩溶发达地区修建桥基,常常遇到基础一部分已到基岩,一部分还悬空很多的情况。苦加深基础将大大增加工程数量,以致出现高边坡影响安全,若加垫块又嫌太大太深,于是将基础一部分置于明挖地基上,一部分置于挖孔桩基上。这种形式通称为半边桩基础,也包括基础局部悬空的补角桩等。这种基础形式,近几年来已较广泛采用于西南各 In steep deep valleys and karst developed areas built bridge foundation, often encountered part of foundation has been bedrock, some also dangling a lot of situation. Bitter deepening will greatly increase the number of projects, resulting in the impact of high safety of the slope, if the pad is too much too deep too deep, so will be part of the foundation laid on the foundation, some placed in digging pile foundation. This form is commonly known as the half pile foundation, but also includes the basic partial vacant fill angle pile. This basic form, in recent years has been more widely used in Southwest each