发育水平岩溶带和岩溶角砾岩；
Horizontal dissolutional belt and dissolutional breccia developed;
研究表明，岩溶角砾岩是识别古岩溶作用最直接的标志；
The study shows that karst breccias are the direct sign of paleokarst.
隧道位于岩溶地区，岩溶角砾岩、白云质灰岩在雨季施工时易产生坍塌、突水和突泥现象。
The tunnel site is located in Karstic area with limestones gravels, where is easy to cave in when construction in raining season.
膏溶角砾岩，是含膏盐岩系中的易溶硫酸盐岩溶蚀后的角砾岩，也是工程勘察中新发现的特殊性岩土的一种新类型。
Gypsum breccia belongs to a new kind of breccia, which is dissovled by soluble suphate rock, and also belongs to a new type of special rock in engineering exploration.
膏溶角砾岩，是含膏盐岩系中的易溶硫酸盐岩溶蚀后的角砾岩，也是工程勘察中新发现的特殊性岩土的一种新类型。
Gypsum breccia belongs to a new kind of breccia, which is dissovled by soluble suphate rock, and also belongs to a new type of special rock in engineering exploration.
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