小坑取样法,小井取样
Based on data from drilling and test pit sampling, 5 rows of grouting holes were designed for consolidating, 2 rows among them along the both sides of culvert inner wall tilting toward outer flank of the culvert, 2m and 4m of slant ranges respectively.
根据钻孔与探井取样资料,设计5排注浆孔进行加固,其中2排沿涵洞内壁两测向涵洞外侧倾斜,斜距分别为2m和4m。加固选用两种注浆参数;
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