| 1. | Inclined genesis of deep curtain grout hole and disposal methods
深孔帷幕灌浆孔斜成因与处理 |
| 2. | Application for penetration of gas hole , water - discharging hole and grout hole under coal mine
适用于煤矿瓦斯抽放孔放水孔注浆孔的钻进。 |
| 3. | Improving measures for the drilling of solidified grout hole with ingersoll - rand lm - 500c hydraulic drill rig
露天液压钻机钻凿固结灌浆孔的改进措施 |
| 4. | The experiment also proves that it is important that the position and order of grouting holes are arranged properly
试验还表明，合理的布置注浆孔位置和安排注浆顺序对于更有效的实现顶升效果具有很大的作用。 |
| 5. | It is also used to prevent or solve geologic calamity , such as landslide and rock collapse etc . in addition , it is also used to drill small size water well and hige - pressure jet grouting hole
适用于水电站铁路公路边坡大吨位预应力锚固孔排水孔的施工，以及预防滑坡岩石坍塌等地质灾害治理工程。也适用于小型水井的施工高压旋喷引孔的施工。 |
| 6. | It also used to prevent or solve geologic calamity , such as landslide and rock collapse etc . in addition , it is also used to drill small size water well and high - pressure jet grouting hole
Yg - 80a钻机适用于水电站工程铁路公路边坡大吨位预应力锚固孔排水孔的施工，以预防滑坡岩石崩塌等各类地质灾害治理工程也适用于小型水井钻高压旋喷引孔的施工。 |
| 7. | It also used to prevent or solve geologic calamity , such as landslide and rock collapse etc . in addition , it is also used for drilling small size water wells and high - pressure jet grouting holes . it has been already widely used in various projects such as water power stations in yunnan , guangxi , sichuan and hubei provinces . it has also become the first priority machine for medium - duty anchoring - reinforcing projects in china
在云南小湾广西滩糯扎渡及景洪水电站，长江上游的溪洛渡水电站向家坝水电站金安桥水电站，乌江上的洪家渡水电站构皮滩水电站，黄河上的拉西瓦水电站公伯峡水电站，雅江上的锦屏水电站已经大量使用， yg - 80型锚固钻机已成为国内水电站岩土锚固工程中的主力机型。 |
| 8. | The distance of the single - row curtain grout hole is between 1 . 4 to 1 . 8 meter , and 2 . 0 meter is suitable for the double - row curtain ; the grouting pressure generally is 1 . 0 to 1 . 5 mpa at the first three grout compartment , then grouting pressure of under the fourth control in 4 to 5 mpa ; for mast grout compartments , a water - cement ratio of 2 or 1 may used in the first grouting
钻孔密度也由原来的0 . slm / mz降至o . 64n扩mz ，节约工程投资447 . 35万元。 6 、单排帷幕的孔距在1 . 4一1 . 8m之间，双排帷幕的孔距以zm为宜;灌浆压力在地表以下前三段一般为1一1 . smpa ，第四段以下按4一smpa控制;对大部分孔段而言，开灌水灰比可定为2或1 。 |
