岩层和土层抗浮锚杆基本试验研究

通过现场抗浮锚杆基本试验，对岩层和土层抗浮锚杆的承载性能和位移性状进行了研究。结果表明，在常压注浆条件下，岩层抗浮锚杆的极限承载力大大高于土层抗浮锚杆；通过二次高压注浆，可以显著提高土层抗浮锚杆的极限承载力，就本工程来说，承载力的提高幅度在1倍以上。达到最大试验荷载时，土层抗浮锚杆位移要高于岩层抗浮锚杆。

Test Research on Anti-Floating Anchors Installed in Rock and Soil

Based on the basic test of anti-floating anchor,the bearing capacity and displacement behavior of anti-anchor in rock and soil are studied.The results show that the bearing capacity of anti-anchor in rock is higher than the anchor in soil under normal pressure grouting condition,it is recognized that high pressure can effectively raise the bearing capacity of the anti-anchor in soil as high as two times.The displacement of anti-anchor in soil is higher than the ones in rock under the largest load condition.