摘要
为研究空心村废弃窑洞拆除整理和复垦技术,本文通过对陕北窑洞土体的现场踏勘采样,使用GDS动三轴仪将样本进行室内试验,提取样本土体的力学参数,并将获取的土体指标输入有限元软件中,建立废弃窑洞的ANSYS仿真模型。研究结果表明:影响窑体结构的主要因素是窑洞孔径、窑腿宽度、窑洞拱顶覆土厚度及窑洞纵向深度;土地复垦过程中,综合考虑田块规模、农田耕作管理、复垦移动土方量等因素,每个小地块的面积控制在3 330~9 990 m^2之间,既可以得到较高的土方计算精度,又可以减少工作量,且便于机械化耕作管理。
In order to study the technology of dismantling and reclamation of the abandoned cave houses in the hollow village,this paper carried out an in-situ survey and sampling of the cave houses in northern Shaanxi.It used GDS dynamic triaxial instrument on the samples by indoor test,then extracted the mechanical parameters of the sample soil and input the obtained soil indexes into the finite element software to establish the ANSYS simulation model of the abandoned cave houses.The result shows the main factors affecting the structure of the kiln body are the hole diameter,the width of the kiln legs,the thickness of the cave roof and the longitudinal depth of the cave.In the process of land reclamation,the factors such as field size,farmland cultivation management,and the amount of soil moved by reclamation are taken into account comprehensively,and the area of each small plot is controlled within 3 330~9 990 m^2,which can not only obtain higher soil calculation accuracy,but also reduce the workload,and facilitate mechanized farming management.
作者
姚丝思
毛忠安
YAO Sisi;MAO Zhong’an(Institute of Land Engineering and Technology,Shaanxi Land Engineering Construction Group Co.,Ltd.,Xi’an 710075,China;Shaanxi Land Engineering Construction Group Co.,Ltd.,Xi’an 710075,China)
关键词
空心村
窑洞拆除
挖塌填实
复垦
hollow village
cave demolition
digging and filling
reclamation
