1) Karst cave with thin rocky roof
无充填薄顶板溶洞
2) karst cave roof
溶洞顶板
1.
It is very important to estimate the safety thickness of karst cave roof for karst ground reinforncement.
岩溶区地基顶板安全厚度的合理确定是岩溶区地基处理的基本依据,通过对岩溶洞隙稳定性的影响因素的分析,研究工程类比法和解析法的适用条件,并采用多种方法综合评价昆明新机场航站区众多溶洞的顶板安全厚度,得出溶洞顶板稳定性与跨度、厚度间的经验关系,为该工程岩溶地基处理提供参考。
3) filling-type karst cave
充填型溶洞
1.
This article describes the grouting and advance support schemes,grouting materials and grouting technology for a filling-type Karst cave in high-pressured water abundant zone in the parallel drift of Yuanliangshan tunnel and makes some discussions into the grouting effect evaluation criteria.
介绍圆梁山隧道平导高压富水区充填型溶洞的注浆和超前支护方案、注浆材料及注浆工艺 ,并针对注浆效果评定标准进行探
2.
The authors make further discussion on the treatment technology for large scale filling-type karst caves in terms of advance reinforcement by large pipe roof,radial grouting through small pipes,steel pipe pile and jet grouting pile.
以新大巴山隧道溶洞处理为例,根据溶洞的发育特点,简要介绍岩溶的处理方案及桩基加固的施工工艺,从大管棚超前支护,小导管径向注浆,钢管桩及旋喷桩处理等几个方面对大型充填型溶洞处理技术进行探讨,希望能给类似工程处理提供参考。
4) Survey of covered karst area
充水、充填溶洞
5) deep buried infilled cave
深埋充填溶洞
6) deep-buried karst caves of filling type
深埋充填型溶洞
补充资料:1965年在贵州贵阳市南发现的巨型溶洞
1965年在贵州贵阳市南发现的巨型溶洞
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