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一、前言TA锚栓法（以下称GFP工法）就是把浆液灌入并作用于地层缝隙中的方法。随着NATM的普及，锚栓支护效果得以确认，倾斜的锚栓法在隧硐掘进中作为不可少的辅助方法正被广泛采用。可是，以往的锚栓法对在破碎的岩层中安装极为困难。GFP工法，适用于那种破碎岩层，其方法是首先用螺栓穿入地层缝隙，然后利用水泥浆在缝隙把螺栓固结，这样处理以后的隧硐施工既安全又经济。
I. INTRODUCTION The TA anchor method (hereinafter referred to as the GFP method) is a method of pouring a slurry into a gap in a formation. With the popularization of NATM, the anchor support effect is confirmed, and the inclined anchor method is widely used as an indispensable auxiliary method in tunneling. However, the conventional anchor bolt method is extremely difficult to install in fractured rock formations. The GFP engineering method is applicable to that type of broken rock formation. The method is to first penetrate the gap of the formation with bolts, and then use the grout to consolidate the bolts in the gap. After such treatment, the tunnel construction is safe and economical.