地基中防空洞的稳定性分析  

Bomb shelters in the foundation stability analysis

作　　者：黄昭昭[1] 唐华瑞[1] 

机构地区：[1]河南理工大学万方科技学院,河南郑州451400

出　　处：《四川建筑科学研究》2016年第3期50-53,共4页Sichuan Building Science

摘　　要：通过对废弃的防空洞进行稳定性分析,从而判断该废弃的防空洞是否需要进行加固处理。介绍了3种废弃防空洞稳定性分析的理论方法:普式卸荷拱理论、岩柱理论和太沙基土压力理论。针对该实际工程中废弃防空洞的埋藏条件选择卸荷拱理论对防空洞进行稳定性研究,选择防空洞的两个截面进行荷载计算,通过计算得出截面2.80 m×2.80 m处的防空洞可以形成卸荷拱,因此不需要对该处防空洞采取加固措施;而截面2.60 m×2.20 m处的防空洞形成不了卸荷拱,因此需要对该处的防空洞进行加固处理。实践证明,利用卸荷拱理论对废弃的防空洞进行稳定性分析是一种有效的理论方法。In order to determine whether the abandoned air-raid shelters need reinforcing,it analyzes the stability of abandoned air-raid shelters. This paper introduces three theoretical methods for analyzing the stability of abandoned shelter： Platts unloading arch theory,the theory of rock pillars and Terzaghi＇s theory of earth pressure. According to the buried condition of the abandoned air-raid shelter in the actual engineering,it chooses relieving arch theory to study the stability of the air-raid shelter. First,select two sections of the shelter for load calculation,from which we know that the air-raid shelter with a section of 2. 80 m × 2. 80 m can form the unloading arch,so there is no need of shelter reinforcement measures; while the unloading arch cannot be formed in the air-raid shelter with a section of 2. 60 m× 2. 20 m,which needs to be reinforced. It has been found that it is a kind of effective method to analyze the stability of the abandoned air-raid shelter using the relieving arch theory.

关 键 词：防空洞 稳定性 卸荷拱理论 

分 类 号：TU933[建筑科学—结构工程]