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.
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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