论文部分内容阅读
爆炸挤淤填石法广泛用于我国浅海滩涂防波堤的修建,但目前对如何计算这类爆炸排淤填石堤坝的沉降还没有人研究。首先将传统沉降计算方法用于一个工程实例,其计算结果与堤坝沉降实测值的对比表明传统方法不适于计算这种断面形状复杂且处于深厚淤泥中的填石坝的沉降。为解决此问题,假设爆炸后的淤泥为流体和堤坝沉降主要是淤泥渗入填石的孔隙所致,基于饱和多孔介质渗流理论提出了一种计算爆炸排淤填石堤坝沉降的新方法。该法计算的沉降与工程实例的沉降实测值接近,说明其能较好地反映该类堤坝的实际沉降,从而具有一定的实用价值。
Explosive compaction rockfill method is widely used in the construction of shallow beach in our country. However, no study has been done on how to calculate the settlement of such explosive embankment. First, the traditional settlement calculation method is applied to an engineering example. The comparison between the calculation results and the measured values of the dam settlement shows that the traditional method is not suitable for calculating the settlement of the rockfill dam with complex shape and deep silt. To solve this problem, we assume that the detonated silt is fluid and the dyke dam settlement is caused mainly by the infiltration of silt into the pores of the rockfill. Based on the seepage theory of saturated porous media, a new method to calculate the settlement of the embankment is proposed. The settlement calculated by this method is close to the measured settlement value of the engineering example, which shows that it can reflect the actual settlement of this kind of dykes well and has certain practical value.