泰山风景名胜区崩塌灾害现状及防治对策

泰山风景名胜区崩塌灾害较多，主要在中低山区及丘陵区的公路切坡段，以小二型为主，次为小一型，已造成较大经济损失和人员伤亡。崩塌的形成取决于构造、地形条件，受暴风雨、地震、人类活动等因素影响，构造复合部位的陡崖更易发生崩塌。崩塌产生的内因是陡峭山体中存在结构面外倾的岩体或块石，外因是暴雨等外力活动的诱发，内外因在特定条件下的结合是易发区内崩塌产生的主要原因。根据崩塌隐患区的不同特征，可分别采取锚固、注浆、平垌、生态工程、避让等措施防治。

Present Condition and Origin of Collapse Hazards and Its Prevention Countermeasures in Taishan Mountain Scenery Area

Collapse hazards occurred constantly in Tai'an mountain scenery area.It mainly occurred in dissected sections of roads in medium-low mountain area and hilly landform areas.It is mainly composed of small second type,and few is small first type,which have caused great loss to economy and living people.Collapse is caused by structure,terrain condition,rain gush,earthquake and human movement,etc.Cliff in compound structure part is easy to collapse.Endogenic origin which caused collapse is that rocks which structural plane slanted outside occurred in cliff moutain,while rain gush is its exogenic origin.Major origins which caused collapse hazards are combination of endogenic and exogenic origins under certain condition.According to different characteristics in different collapse hidden danger areas,prevention countermeasures,such as grappling,grounting,ecological engineer and preventions are carried out.