摘要
冰碛土强度值的合理选取一直是制约冰碛土体工程设计和评价的瓶颈,无论实验室试验还是原位试验,均难以获取冰碛土体可靠的强度和变形指标。原因在于冰碛土特殊的粒度组成和沉积结构特性。通过简单的元胞自动机演化规则,模拟冰碛土复杂的沉积动力过程,编制出能模拟冰碛土结构的程序。该程序可在试件尺寸、单位长度、初始条件以及砾石含量(确定性的和不确定性的)等多方面供用户选择,“制备”逼真的表现砾石“聚团”几何形态、足以代表冰碛土体组成和结构特性的“三轴试验试样”,以备将来进行三轴数值模拟试验所用。
The strength value selection for glacial soil has been a bottleneck restricting the engineering and evaluation of glacial soil body. It is difficult to obtain reliable indexes of the strength and deformation of glacial soil body whether in lab experiment or in in-situ test due to its special size composition and sedimentary structural characteristics. A program has been compiled for simulating the glacial soil structure by simulating its complex sedimentary dynamic process by means of simple cellular automation evolution rules. The program can provide a wide selection for the users in sample dimensions, unit length, initial conditions and pebble content （certain or uncertain） and prepare triaxial test samples which can vividly and efficiently represent the pebble ＂agglomeration＂ shape and the composition and structural characteristics of glacial soil body for use in the future triaxial numerical simulation test.
出处
《金属矿山》
CAS
北大核心
2007年第1期60-62,共3页
Metal Mine
关键词
元胞自动机
冰碛土
数值模拟
Cellular automation, Glacial soil, Numerical simulation
