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裂隙粘土是一种由膨胀性粘土矿物组成的、超固结的、多裂隙的高塑性粘土(以下简称裂土),是造成工程损失最大的一种特殊土。实践证明,如果不及时采取防护加固措施,襄渝线5米及其以上的裂土路堑边坡,几乎都发生了病害。采用裂土填筑的路堤,由于施工破坏了土体的原状结构,碾压夯实至一定密度后,初期稳定性尚好,病害发展缓慢。但随着时间的推移,路堤病害将迅速发生,其严重程度远远超过裂土路堑病害。如我分局管内
Fissured clay is a kind of special clay composed of expansive clay minerals, super-consolidated and multi-fractured high plastic clay (hereinafter referred to as “crack”), which is the largest project loss. Practice has proved that almost all of the diseases have taken place unless the measures for protection and reinforcement are taken timely and the slop cutting slopes of 5 m or above in Xiang-Yu Line are above. The embankment filled with riprap, due to the destruction of the original structure of soil, compacted to a certain density after rolling, the initial stability is good, the slow development of the disease. However, with the passage of time, embankment diseases will occur rapidly, and their severity far exceeds that of loess cutting. As I branch management