浅析临近既有线桩间土钉墙施工过程控制

摘要

In slope protection engineering construction of ordinary railway in the present, in order to ensure the stability of slope, slope protection pile anchor is used, soil nailing wall is used between piles, the stability of soil between piles mainly depends on the formation of soil nail and the existing rock mass, to improve the overall anti-sliding capacity of rock mass, to ensure the overall stability the cutting slope of rock mass. The soil nailing wall between piles is suitable for most rock and soil, with high uplift resistance and reliable quality. Construction of soil nailing wall between piles is described from determining test parameters, key control in soil nailing drilling, main construction process of drilling and key control of construction of the existing railway line.%在目前的普通铁路路堑边坡防护工程施工中，为保证路堑边坡的稳定性，路堑边坡大多采用锚固桩防护，桩间配合使用土钉墙加固，桩间土体的稳定主要依靠土钉与既有岩体形成整体，提高岩体的整体抗滑能力，确保路堑边坡岩体的整体稳定。桩间土钉墙适用大部分的岩土体，抗拔力较高，质量较可靠，在工程边坡防护工程中普遍使用。桩间土钉墙施工从确定试验参数、土钉钻孔过程中的重点控制、钻孔注浆及临近既有线铁路施工的重点控制等主要施工过程进行说明。