本实用新型适用于各种油气井和水井，可直接做泵下砂锚。
The utility model is suitable for various oil and gas Wells and water Wells, and can directly do sand anchor operation under pumps.
通过实践总结了土钉及锚杆技术在人工填土、砂卵石、砂层、淤泥质土等复杂地层边坡支护施工的处理方法。
The nail-dog and rock-bolt technique is often used in the supporting construction of such complicated slopes as artificial fill, sandy graves strata, sand deposits and muddy soil.
砂固结预应力锚杆的锚固力是由砂体与锚孔壁之间的摩擦力提供的。
The anchorage force of consolidated anchorage with prestressed bolt is actually the friction resistance between sand and the wall of drill hole.
钢筋骨架网衬砌模注砼及初期锚喷砼支护，采用水泥裹砂半湿式喷砼法；
The re bar net preliminary lining mould shotcrete and preliminary and anchor shotcrete are used for support by the use of the semi wet spraying method with sand entrapped in cement.
基于颗粒流理论，建立分析砂固结预应力锚杆锚固性能的颗粒流数值分析模型。
Based on the theory of particle flow code (PFC), the numerical analysis model is established to study the anchorage mechanism of sand consolidated anchorage prestressed bolt.
基于颗粒流理论，建立分析砂固结预应力锚杆锚固性能的颗粒流数值分析模型。
Based on the theory of particle flow code (PFC), the numerical analysis model is established to study the anchorage mechanism of sand consolidated anchorage prestressed bolt.
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