running sand

名词 n.
中文释义

英文释义

名词 n.
  1. Saturated sand which flows into an excavation or void due to water pressure. uncountable
    — During the construction of the viaduct, the sinking of the caissons in the river bed caused much difficulty to the engineer and contractors, as a bed of running sand was encountered; in consequence, the expenditure for these foundations proved almost prohibitive.
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