黑龙江科技大学学报2026，Vol.36Issue(5)：730-735,6.DOI:10.3969/j.issn.2095-7262.2026.05.005
富水基岩段立井单层冻结井壁厚度的设计方法
Design method of single layer frozen wall thickness of sub-vertical well in water bearing stable strata
摘要
Abstract
This paper is focused on the rational design of the frozen wall in water bearing stable stra-ta.Considering the resistance of rocks to ground pressure and the combined mechanism of surrounding rock and pore water on the well wall,the study involves establishing a mechanical model of the interac-tion between the wall and surrounding rock;deriving a new calculation formula for the well wall thickness of water bearing stable rock stratum under the action of equivalent skeleton ground pressure and equiva-lent pore water pressure;and analyzing the effects of elastic modulus,porosity and Poisson's ratio on well wall thickness and external load of the surrounding rock.The results show that the thickness of the well wall decreases linearly with the increase of the shear modulus of the surrounding rock,and increases non-linearly with the increase of the porosity and Poisson's ratio of the surrounding rock at the contact surface between the well wall and the surrounding rock.Appropriate increase of the well wall thickness can sig-nificantly improve the stress state of the well wall as economic permits.The thickness of the well wall ob-tained by the new calculation formula is 63.1%of the standard thickness,and the wall thickness reduc-tion effect is significant.This study can provide a theoretical basis for the design of well wall in water bearing stable strata.关键词
富水稳定岩层/井壁厚度设计/等效孔隙水压/等效骨架地压Key words
water-bearing stable strata/shaft wall thickness design/equivalent pore water pressure/equivalent skeleton pressure分类
矿业与冶金引用本文复制引用
张文,宋杨,郭红军..富水基岩段立井单层冻结井壁厚度的设计方法[J].黑龙江科技大学学报,2026,36(5):730-735,6.基金项目
国家自然科学基金青年科学基金项目(52404122) （52404122）
