三峡水利枢纽永久船闸上航道高边坡喷锚支护技术

Technique of Anchorage and Shotcrete Support for High Slope Along the Permanent Navigation Channel of the Three Gorges Key Water Project

高边坡喷锚支扩由于其高差大，面积广，且往往受开挖爆破作业限制，应合理安排施工顺序。施工过程中，边坡整修，锚杆安装，挂网配料喷射以及排水系统设置等均应采取适当的技术措施，确保工程进度和质量。

The construction procedure should be rationaly arranged, because of the anchorage and shotcrete support always with great difference of altitude, large working area, especially blasting method. During construction, measures should be taken for the slope renovation, installing anchors, concrete spraying, and drainage laying-out, so that the schedule and quality can be ensured.