鹰厦铁路典型顺层岩质边坡稳定性分析

影响顺层岩质边坡稳定性的主要因素有岩体的粘聚力和节理裂隙面的粘聚力，与一般边坡不同，节理面粘聚力大小决定了顺层边坡的稳定性。选取鹰厦铁路典型顺层边坡进行分析，采用数值模拟方法，比较不同节理面粘聚力下的边坡应力应变规律，得出在岩体粘聚力比较大而节理面粘聚力较小的情况下，顺层边坡会由于节理面产生拉应力而破坏。对于节理面可能出现的破坏形式提出了加固预应力锚固措施，进行加固措施后用数值模拟分析，对边坡的受力特征进行分析，得出预应力锚固方法促进节理边坡的稳定性。

An Analyses in Stability of a Typical Consequent Rock Slope in the Yingtan-Xiamen Railway

The principal factors of impacting the stability of a bedding rock slope are the cohesive strength of rock masses and joints and fissure surfaces.Differing from the common side slopes,the cohesive strength values of joint planes decide to the stability of bedding slopes.Studying a bedding slope in the Yingtan-Xiamen Railway by the numerical analog method and comparing the stress strain of side slopes in different cohesive strength of joint planes,it is considered that while the cohesive strength of rock masses is relatively bigger and the cohesive strength of joint planes is minor,the bedding slope can be destructed by the tensile stress.Some measures of strengthening pressured anchors is put forward according to the possible destructional forms on the joint planes.Based on the analyses of the numerical simulation and stressing characteristics of side slopes after strengthening,it is shown that pressured anchors can help to the stability of jointing side slopes.