路堑边坡群锚加固效果模型试验初探

An Elementary Investigation on Model Test of Cutting Slope Multi-bolts Strengthening Effect

边坡防护方法中锚固防护已成为应用最广的直接防护方法之一,它以其加固见效快,可靠性高,又比较经济等优点而广泛用于岩土工程领域,近年来在公路部门的应用也越来越多。本文针对广东汕梅高速公路一路堑边坡工程地质情况,采用室内相似材料模型试验,对群锚加固机理及效果进行了初步探讨。试验中采用两种加载方法,分别得到4种不同锚间距模型的锚受力特征。文中验证了群锚对边坡的加固效果,并分析了不同数量的群锚加固边坡的效果。

Anchoring has become one of the most widely applied reinforcement in direct reinforcing, used in geotechnical engineering domain for its virtues, such as speedy reinforcing effect, good dependability, cost-effective and so on, and in recent years its application in highway department also becomes more and more widely. This article bases specifically on engineering geology condition of one cutting slope in Guangdong Shanmei highway, and adopts laboratory similarly model test to investigate and discuss the strengthening machanism of multi - bolts and its effect. Two loading methods are used in the test to get the the force characteristic of anchor in four models which have different anchor span. The strengthening effect of multi - belts upon slope is tested, and the effect of different numbers multi-bolts strengthen slope is analyzed.