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大连市某中学建筑场地的表层土为近期人工堆填的块石和建筑垃圾（平均厚达约１１ｍ），并紧邻同期施工的地下商城。由于商城施工超挖，给邻近中学的一边形成不稳定的陡崖。地基加固的施工条件恶劣，难以打桩，陡崖存在坍塌滑动的危险。经研究最后采用了简单护坡措施和相应的振冲施工技术，圆满地完成了该地基的加固，拓宽了振冲碎石桩加固松软地基的领域。
The surface soil of a secondary school building site in Dalian City is recently filled with artificially-packed stones and construction waste (average thickness is about 11m), and is located in the underground shopping mall under construction for the same period. As the construction of the mall was over-excavated, an unstable cliff was formed on one side of the neighboring middle school. The construction conditions for ground reinforcement are poor, and it is difficult to piling. There is a risk of collapse and sliding of the cliff. After the study, the simple slope protection measures and corresponding vibroflotation construction techniques were adopted to successfully complete the reinforcement of the foundation and broaden the field of vibro-accomplished stone piles to reinforce the soft foundation.