水钻在人工挖孔抗滑桩基岩钻掘施工中的应用

Application of water drilling in rock drilling construction of anti-slide pile foundation by manual excavation content

本文结合工程实例,介绍人工挖孔抗滑桩基岩挖掘施工实践,该工程地处偏僻乡村,道路交通条件落后,旋挖钻机等大型施工机械设备无法进场施工;且该滑坡点距当地村民住房近,不具备小药量爆破清除条件,而采用风镐或电镐掘进困难。该人工挖孔抗滑桩基岩挖掘施工中,釆取水钻方法攻克风镐或电镐挖掘效率低下,较好地解决人工挖孔抗滑桩基岩挖掘的难题。

This paper introduces the construction practice of artificial digging anti-slide pile foundation rock excavation for a landslide emergency treatment project.The landslide site is located in a remote village with poor traffic conditions,as a result,large construction machinery and equipment such as rotary drilling rigs could not enter the site for remediation purpose.On the other hand,the landslide point was close to the local villagers houses and did not have the area for small-dose blasting removal,so it was difficult to use pneumatic picks or electric picks for excavation works.Hence,the drilling method was adopted in the excavation construction of the manually excavated anti-slide pile foundation rock for the purpose of overcoming the low excavation efficiency of the pneumatic pick or the electric pick,thus solving the difficult problem of manually excavated anti-slide pile foundation rock excavation.