黄土丘陵区废弃窑洞稳定性及拆除技术研究

Study on the stability and demolition technology of abandoned cave dwellings in Loess Hilly Area

陕北黄土高原地区废弃窑洞的拆除整治对节约、集约利用土地,建设新农村具有非常重要的意义。通过建立废弃窑洞的三维力学模型,利用数值试验方法,对窑洞各个部位的稳定性进行了力学分析,发现影响窑体结构的主要因素是:窑洞的跨度、窑腿的宽度、覆土的厚度。针对废弃窑洞拆除技术,根据不同部位的受力特点,提出了相应的拆除工序应遵循从上至下,逐层分段拆除。

The demolition and regulation of abandoned cave dwellings in the Loess Plateau of Northern Shaanxi is of great significance for saving and intensive use of land and building a new rural area. A three-dimensional mechanical model of abandoned cave is established,and the stability of each part of the cave is analyzed by numerical experiment. It is found that the main factors affecting the kiln structure are the span of the cave,the width of the kiln leg and the thickness of the covering soil. In view of the dismantling technology of abandoned cave cave,according to the stress characteristics of different parts,it is proposed that the corresponding removal process should be removed from top to bottom and subsection by layer.