黄土地区沉井井壁土压力计算研究

对沉井过程中沉井井壁所受的土压力,普遍观点认为沉井受主动土压力的作用,可根据Coulomb和Rankine土压力理论进行计算与分析。但在西安等黄土分布比较广泛的地区,该法所得土压力与实际的土压力有较大出入。有鉴于此,文中从井后土体回弹再压缩角度提出了比较符合实际土压力的井壁土压力计算方法。

Study on Calculation of Open Caisson Wall Soil Pressure in Loess Area

For soil pressure on open caisson wall during sinking process,it is commonly considered that active soil pressure on open caisson can be calculated and analyzed according to Coulomb and Rankine Soil Pressure Theory.But in the areas where loess is widely distributed such as Xi＇an,soil pressure obtained from this theory is largely different from the actual pressure.Therefore,this paper puts forward a calculation method for caisson wall pressure that is more conforming to actual soil pressure from the view of resilience and recompression of soil mass behind caisson.