软土中洞室影响带分析及围护  

AN ANALYSIS OF CHAMBER INFLUENCE LINES AND THE PROTECTION IN SOFT SOIL

作　　者：马海龙[1] 

机构地区：[1]苏州城建环保学院城建系

出　　处：《苏州城建环保学院学报》1997年第2期8-12,共5页Journal of Suzhou Institute of Urban Construction and Environmental Protection

摘　　要：文章根据弹性力学内部加载圆孔及应力叠加原理，推导了在软土地层开挖浅埋圆形洞室周围应力重分布公式，并根据Kirsch公式计算了5％及10％影响带范围。以此给出树根桩在此类围护工程中的计算方法。对涉及开挖洞室后引起的稳定问题及加固围护具有一定的参考价值。The formula for redistributing stress around the chamber is obtained on the principle of loaded cylinder pores and the stress pile-up in elastic media. The 5% and 10% stress influence lines are also calculated by applying KIRSCH's formula. The paper offers a method of calculating and designing tree root piles used in the counteraction of soil pressure caused by the chamber. The result can be referred to by designers in this field.

关 键 词：影响带 洞室 树根桩 稳定性 围护 

分 类 号：TU457[建筑科学—岩土工程] TU473.1[建筑科学—土工工程]