Cutting and interlocking between the primary and secondary secant piles are realized ingeniously with the method of delaying concrete setting-time.
利用延缓砼凝固时间的方法，巧妙地实现了相邻桩间的切割咬合。
Cutting and interlocking between the primary and secondary secant piles are realized ingeniously with the method of delaying concrete setting-time.
利用延缓砼凝固时间的方法，巧妙地实现了相邻桩间的切割咬合。
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