水泥粉喷桩在桥梁工程中的应用

地基可以分为天然地基与人工地基,在桥梁工程中一般采用天然地基。而对于小型桥涵,其基础在设计时往往采用浅基础,当地基浅层土质不良,采用浅基础无法满足结构物对地基强度、变形和稳定性的要求时,桥梁设计最常用的方法是采用深基础。根据因地制宜、就地取材和经济有效的原则出发,也可采用人工加固地基的设计,水泥粉喷桩便是人工加固地基的一种方法,通过对这一方法多年的设计与施工,取得了较好的使用效果与经济效益,认为水泥粉喷桩可以应用于小型桥涵的基础工程中。

The cement powder-gushing pile of application in engineering of bridge building

The subgrade can be divided into the natural subgrade and artificial subgrade, generally adopts the natural subgrade in the engineering of bridge building. To the small scale bridges and culverts, its foundation often adopts the simple foundation during the design, shallow ones bad soil property local bases, adopt shallow unable to satisfy the requisition on the intensity, distortion, stability of the subgrade, the commonly most used method of bridge design is to adopt the deep foundation. If set out with the principle with effective economy according to suiting measures to local conditions, use local materials, can adopt the composite design which strengthen the subgrade too, a kind of method to strengthen the subgrade that it is composite that the cement powder gushing pile. Through the design and construction for many years to this method, which has made better result of use and economic benefits, we think that the cement powder gushing pile can be applied to the foundation engineering of the small scale bridges and culverts.