福建省高速公路边坡病害类型分析

为解决边坡防护加固设计依据不足的问题,本文结合福建省高速公路路堑边坡工程实践,归纳了风化剥落、流石流泥、掉块落石、溜坍、坍塌、崩塌、倾倒、错落和滑坡等9大类路堑边坡常见病害类型,并对各病害类型的变形破坏特点进行分析：路堑边坡小规模变形破坏在富水土体中以流、溜、坍运动模式为主,在风化岩石中以剥、落运动模式为主;大规模变形破坏则受控于岩土体中结构面的空间位置及其组合形式,反倾岩层易产生＂倒＂,节理岩体易产生＂崩＂,残存结构面的软弱岩土体易形成＂塌＂,存在陡倾结构面和软弱坡脚的岩土体易形成＂错＂,以及沿特定软弱面做整体水平运动的＂滑＂等多种运动模式。

Analysis of disaster types of cutting slopes along expressway in fujian province

According to the engineering practice of cutting slopes alone expressway in Fujian Province, 9 typical types of disaster of cutting slopes, such as flake-away, mud-flow, rock-fall, superficial-slip, slough, collapse, toppling failure, stagger-fall, landslide and buckling failure, were summarized. The movement characters of cutting slopes were discussed in this paper. Small scale failures of cutting slope were flowing, slipping, sloughing in the wet soil and flaking, and falling in rock mass. Big scale failures included toppling in countertendency rock mass, collapsing in jointed rock slope, caving in the weathering rock and soft soil, staggering in the rock slope with steep discontinuous plane and soft toe, and sliding alone some slip surface.