tunnel support

Tunnel Support Method of Shotcrete on Tunnel Tube Awning Steel Grill and Its Application

巷道管棚钢格栅喷混凝土支护掘进方法的应用

In the course of redistributing, if the intensity of rocks is insuff, the surrounding rocks will lose balance and the tunnel will be destroyed, so it is necessary to take support measures to the soft and weak surrounding rock.

因此，有必要对软弱围岩采取支护措施。

Wet sprayed concrete is especially suitable for the support of high bank slope or tunnel excavation.

湿式喷射混凝土特别适用于高边坡支护和隧洞开挖支护.

Anchor concreting is an effective support technique to control surrounding rock deformation and keep tunnel stability.

锚杆注浆是一种行之有效的控制围岩变形和保证巷道稳定的支护技术.

Using common powder charge structure makes larger vibration damage to the surrounding rock when drifting, and it needs higher requirements to tunnel support which leads to higher final cost.

巷道掘进过程中采用普通装药结构对围岩振动损伤较大，导致对巷道支护要求高，支护成本增大；

In the support project of soft-rock tunnel, the pullout resistance of the Self-screwed Slip Casting Tube Bolt is the critical technical parameter that related to the security of anchorage system.

在软岩隧道支护中，自旋注浆锚管的抗拔力是至关重要的技术参数，关系到锚固体系的安全。

Using the theory of Terzaghi's relation soil pressure, the minimal support pressure formula with tunnel face in stratified sandy soil was obtained based on the principle of sliding block entire force balance.

采用太沙基松动土压力理论，根据滑动块的整体受力平衡，推导出砂性土中考虑成层土的开挖面最小支护压力计算公式。

Anchor reinforcement is one of the most effective measures on geotechnical engineering of strengthening field, which is applied to the field of foundation pit bracing, tunnel support, dam overturning resistance, slope slip resistance and so on.

锚杆和锚索加固是岩土工程领域最有效的加固措施之一，大量用于基坑护壁、隧洞支护、水坝抗倾和边坡抗滑加固等工程。

Numerical Simulation of Flat-roofed Tunnel-bolting Support Mechanism

平顶巷道锚杆支护机理的数值模拟

Analysis of dismantling temporary support of shallow-depth large-span tunnel

浅埋大跨度隧道临时支撑的拆除分析