“斜撑内支撑环”在高陡危岩治理工程中的应用

Application about "Inner Support Ring of Inclined Brace" in High and Steep Dangerous Rock Treatment Engineering

摘要:

内容提要：本灾害点的危岩体处于一座小型古亭下方的地基部位,在保护古建的前提下,治理危岩体的难度明显增大；另外,危岩体位置高陡、其下方已形成自上而下的“倒三棱锥形崩塌岩腔”,这种岩腔的存在,对治理方法的选择构成了极大限制；其次,在危岩体所在岩石陡壁坡脚处,即为“石景山古建山体特色景观公园”的景观小路。这3项因素叠加,极大的限制了对该危岩体的治理方法选择。经多方案比选,最终决定在危岩体下方采用“工字钢斜撑内支撑环”治理措施。经实施及竣工后观察,其对小型古亭地基的保护及治理效果良好。笔者认为,对于这种特殊条件下的危岩治理工程,选用“工字钢斜撑内支撑环”治理措施,方法特殊、有效,对类似治理工程具有一定借鉴作用。

Abstract:

The dangerous rock mass at this disaster point is located in the foundation part under a small ancient pavilion,Under the premise of protecting ancient buildings,The difficulty of controlling dangerous rock mass increases obviously,in addition,The location of the dangerous rock mass is high and steep, and a top-down "inverted pyramidal collapse rock cavity" has been formed below it.The existence of this kind of rock cavity greatly restricts the choice of treatment methods.Second, at the foot of the steep rock face where the dangerous rock mass is located,It is the landscape path of "Shijingshan ancient construction Mountain characteristic landscape Park".The combination of these three factors greatly limits the choice of treatment methods for this dangerous rock mass. After comparing and selecting many schemes,Finally, it is decided to adopt the measures of "inner support ring of I-steel inclined brace" under the dangerous rock mass.After implementation and observation upon completion, It has a good effect on the protection and treatment of small ancient pavilion foundation.The author believes that for the dangerous rock treatment project under this special condition,