土质边坡支护工程中几种特殊情况的处理

PROCESS ON SEVERAL SPECIAL INSTANCES OF SUPPORT ENGINEERING OF SOIL BORDER-SLOPE

因工程建设需要,常使某些复杂地层形成边坡。松散人工填土、砂卵石层、流砂层、淤泥层等和水害,是土质边坡支护的重点,处理不当,将导致边坡坍塌,酿成灾害性后果。土钉、锚杆是土质边坡支护工程中的有效方法,支护过程中先施工注浆土钉、后施工注浆锚杆;借用千斤顶压入钢管土钉、二次注浆等工艺措施,达到快速稳定边坡之目的。治理水害,应先查清水源,再根据具体情况分别采取堵、排、挡、滤、抽等方法,以达到永久性边坡治水的目的。支护工程中,应把握好设计、监测等环节,遇到特殊情况及时处理,避免灾难性事故发生。

Some complicated strata always become the border-slope because of engineering developments. The harm of lax artificial filled soil, sand and scree, flow-sand layer and silt-layer etc.is the important point of support engineering of soil border-slope, unsuitable fathering will cause collapse of the side, and bring about catastrophic result. A efficient way of support engineering of soil border-slope is soil-nail and anchor-pole. In course of support, soil-nail of infuse-slurry is constructed in advance, then anchor-pole of infuse-slurry made. By using the jack to press into soil-nail of steel pipe and infusing slurry twice, the border-slope is fast stabilized. To manage the water ,harm, headwaters should first be investigated. According to the individual conditionthe methods of block-up, draining, obstructing, sieving, pumping should be adopted for the purpose of permanently fathering the water of border-slope. In manage and support engineering, the good design and monitor should hold to prevent the disaster from occurrence in case of special circumstance.