论文部分内容阅读
在天津市某些地区,由于松软的淤积物过厚,并且对于層数不多的建筑物又不能在基础上多加投資,因之在不过多增加造价的条件下,设法使持力层加固到具有足够的强度就变成在这种地区上处理軟地基的方向之一。这是天津市的几个工程单位和高等学校所共同致力的研究項目。目前的研究集中在石灰桩上。这方法是先使用管桩在土中冲打破桩洞,然后在桩洞内投入生石灰塊,使生石灰吸水膨脹而挤紧土壤(生石灰在漲發时可形成每平方厘米大于40公斤的压力)。这种方法本来在天津市的老工人中是習知的,
In some areas of Tianjin, because the soft silt is too thick, and for buildings with a few layers, it is not possible to invest more on the foundation. Therefore, under conditions that do not increase the cost of construction, they try to reinforce the Having sufficient strength becomes one of the directions to deal with soft foundations in such areas. This is a research project jointly undertaken by several engineering units in Tianjin and institutions of higher learning. The current study focuses on lime piles. This method is to use the pipe pile to break the pile hole in the soil, and then put the lime block in the pile hole to make the lime water expand and squeeze the soil (the quick lime can form a pressure greater than 40 kilograms per square centimeter when it rises). This method was originally known to the old workers in Tianjin.