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崩山(崩岗,山崩)是水土流失最为严重的侵蚀类型之一,其特点是侵蚀速度快,危害性大,中后期治理困难。过去治理崩山多数采用筑谷坊,开天沟、造林绿化等办法,需要较长的时间才能收到稳定崩口的效果,有许多崩山口治理了二十多年,筑了数级谷坊仍未停止崩塌。其主要原因是崩口陡峭部份无法稳定,更难于绿化郁闭,而采用削坡开级的工程措施来改变陡峭崩口,能够快速治理崩山,迅速绿化,郁闭稳定。崩山削坡开级,又叫做“崩口台阶化”,就是将陡峭的崩口从上到下开成小梯台,为造林绿化创造条件。削坡开级能在短期内稳定崩岗,是制止崩塌的一种行之有效的工程措施。适用于崩口仍有继续崩塌扩展的趋势,严重危
Collapsing hill (collapsing hill, landslide) is one of the most serious erosion types of soil and water erosion, which is characterized by rapid erosion, great harm, and difficult management in the later period. In the past, the treatment of landslides in most places adopted the methods of building gulch, gutter and afforestation. It takes a long time to receive the effect of stable choking. There are many landslides that have been under management for more than 20 years and have built several levels of gulch Did not stop collapsing. The main reason is that the steep part of the chinks can not be stabilized and the greening can not be easily closed. Instead, the engineering measures of opening and closing the chops can be used to change the steep chinks, which can rapidly manage collapsing, rapid greening and stable canopy closure. The collapse of the mountain cut open level, also known as “collapsing step”, that is, the steep collapse from top to bottom into a small ladder for afforestation create the conditions. Cutting slope open level in the short term stable collapse, is to stop the collapse of an effective engineering measures. Applies to the collapse of the collapse is still continuing the trend of expansion, serious danger