在渗流作用下单个土颗粒发生独立移动的现象，称潜蚀或管涌。潜蚀较普遍地发生在不均匀的砂层或砂卵(砾)石层中。组粒物质从粗粒骨架孔隙中被渗流携走。使土层的孔隙和孔隙度增大，强度降低，发展下去会呈现“架空结构”甚至造成地面塌陷。
潜蚀作用 [地理] underground erosion ; underground corrosion ; groundwater corroding
心之潜蚀 The Intruder ; Intrus
潜蚀效用 underground erosion
潜蚀滑坡 internal scour landslide
潜在侵蚀 [土壤] potential erosion
土壤侵蚀潜在危险指数 SEPDI
土壤侵蚀潜在危险 [土壤] soil erosion potential danger
高温耐腐蚀潜水渣浆泵 PSQRX
用潜蚀机制解释这种现象较为合理，它是一个累进变形破坏过程。
It is reasonable to explain this phenomenon with the underflow erosion.
因此对黄土洞穴物理潜蚀机理进行试验研究，具有重大的理论和实践意义。
Therefore, the potential erosion of the loess cave physical mechanism of experimental research, is of great theoretical and practical significance.
由于地下水潜蚀、化学溶蚀等作用，灰岩地区溶洞、土洞较为发育，给桩基施工带来较大困难。
By the action of groundwater erosion and chemolysis, cavities are well developed in limestone area, which causes many problems for pile foundation construction.
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