地铁工程球状风化专题勘察方案研究

球状风化(俗称"孤石")对地铁盾构工程施工极为不利.本文结合工程实例,论述了地铁工程开展球状风化专题勘察的必要性,并以深圳某地铁工程为例,通过分析球状风化对地铁工程不同工法的影响以及处理孤石的方法,合理地推荐了球状风化专题勘察的实施范围;通过对不同类型勘察方案进行多因素综合比较,推荐了专题勘察布置方案,并就专题勘察的实...

Discussion About Special Investigation Programmes of Spheroidal Weathering in Subway Project

Spheroidal weathering which is generally called lone-stone stunts shield construction badly. This paper expounds the necessity of special investigation of spheroidal weathering. The paper firstly sets a subway in Shenzhen as an instance and analyses spheroidal weathering’s disparate impact on different construction methods, and introduces manners to dispose spheroidal weathering, then recommends the rational region of special investigation. By means of comparing advantages and disadvantages of several programmes of spheroidal weathering from multi-factors, the paper recommends the most advisable one. Finally, the paper gives some advice on putting the programme into practice. All opinions in this paper serve as bricks cast to attract jade.