CAJ | 학술논문

十天（十堰-天水）高速公路安康段K57＋265～＋325路堑边坡为一典型千枚岩高边坡。原4级支护结构失效而产生滑塌，后更改为9级支护设计。对边坡滑塌成因进行了分析，运用Geo—Slope通用岩土体软件对原设计方案和更改的设计方案进行了稳定性验算，并以这两种支护设计方案为基础分别在边坡级数、坡比、平台宽度、抗滑桩的布设位置及锚杆（索）长度等方面进行了支护方案的优化设计，给出了更为合理的6级支护建议。
십천（십언-천수）고속공로안강단K57＋265～＋325로참변파위일전형천매암고변파。원4급지호결구실효이산생활탑，후경개위9급지호설계。대변파활탑성인진행료분석，운용Geo—Slope통용암토체연건대원설계방안화경개적설계방안진행료은정성험산，병이저량충지호설계방안위기출분별재변파급수、파비、평태관도、항활장적포설위치급묘간（색）장도등방면진행료지호방안적우화설계，급출료경위합리적6급지호건의。
The cutting slope at Ankang Section K57 + 265 - K57 + 325 of Shiyan-Tianshui Highway is a typical phyllite high slope and the supporting structure thereof is changed from the original level 4 to 9 due to the collapse caused by the failure of this structure. This paper analyzes the genesis of the collapse and uses the Geo-Slope common software for rock soil mass to cheek the stability in the original and revised design scheme. Based on these two schemes, the slope hierarchy, slope ratio, platform width, anti-sliding piles' arrangement and anchor rod (cable) design in the supporting scheme are optimized, thus the more rational supporting level 6 is suggested.