从1967年起,我厂在大量工程中采用了爆扩短桩或灌注桩基础。绝大多数工程的使用效果令人满意。以后,我们在工艺管道支架、蒸汽管道支架和一些院墙工程中也采用了大量短桩基础。但发现有的管道竣工后不久,随着桩基础承台的隆起或下沉,支架上 Since 1967, our factory has used explosion-expanded short piles or cast-in-place pile foundations in a large number of projects. Most of the projects have been used satisfactorily. Later, we also adopted a large number of short-piled foundations in process piping supports, steam pipe supports, and some wall projects. However, shortly after the discovery of some pipelines, with the uplifting or sinking of pile foundation platforms, the supports