The author generalizes that transmit process of impact force in volley-unstable rock retaining wall is from unstable rock into rock-fall, dam, pile-plate and ground in this paper.
作者将危岩落石作用于拦石墙的传力机理概化为落石→堤→桩及板→地基的传力过程。
The size of the lateral pressure retaining wall is relative with soil and rock mechanics properties, wall, supporting structure form and displacement direction and size.
挡土墙侧向压力的大小与岩土力学性质、墙高、支护结构形式及位移方向和大小等因素有关。
The drilling rig is mainly used in soil and rock anchoring, consolidation of road base, dam base and retaining wall, and blasting hole drilling and jet-grouting.
该钻机主要用于土、岩锚杆、路基、坝基、挡土墙加固、爆破孔等钻孔工程以及高压旋喷孔的施工。
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