新建铁路
北京至沈阳铁路客运专线(辽宁段)站前工程TJ-10标
锚杆框架梁
边坡防护专项施工方案
中国铁建大桥工程局京沈客专辽宁段TJ-10标项目经理部
二〇一五年五月
新建京沈客专(辽宁段)站前工程TJ-10标段锚杆框梁施工方案
目 录
1、工程概况 ........................................................................................................................................... 1 1.1、工程简介 ............................................................................................................................................ 1 1.2、设计概述 ............................................................................................................................................ 1 1.3、工程地质及水文地质情况 ................................................................................................................. 4 1.4、设计图纸及有关技术标准、规范 ..................................................................................................... 4 2、施工计划 ............................................................................................................................................ 5 3、主要施工方案 .................................................................................................................................... 5 4、施工方法及措施 ................................................................................................................................. 5 4.1、施工准备 ............................................................................................................................................ 5 4.2、边坡清理 ............................................................................................................................................ 5 4.3、测量放线 ............................................................................................................................................ 5 4.4、基础开挖 ............................................................................................................................................ 5 4.5、锚杆钻孔施工 .................................................................................................................................... 6 4.6、锚杆体制作及安装............................................................................................................................. 7 4.7、锚固注浆 ............................................................................................................................................ 8 4.8、锚杆拉拔试验 .................................................................................................................................... 8 4.9框架梁施工 ........................................................................................................................................... 9 5、人员机械配置 .................................................................................................................................. 11 6、关键工序及质量保证措施 ............................................................................................................... 12 6.1、工程质量目标 .................................................................................................................................. 12 6.2、质量控制及检验标准 ....................................................................................................................... 13 7、施工安全保证措施 ........................................................................................................................... 14
新建京沈客专(辽宁段)站前工程TJ-10标段锚杆框梁施工方案
锚杆框架梁边坡防护专项施工方案
1、工程概况
1.1、工程简介
中铁建大桥工程局京沈客专辽宁段TJ-10标一工区起止里程DK574+414.21~DK592+400,正线全长17.985km。其中,正线路基为8.2km,分别为DK575+041.72~DK578+164.55段3.122km,DK579+019.85~DK580+401.91段1.382km,DK581+813.12~DK584+408.25段2.595km,DK590+625.95~DK591+636.81段1.011km,DK592+263.21~DK592+400段0.136km。黑山北站维修工区段路基DK591+636.81~DK591+990段0.353km。 1.2、设计概述
京沈客专辽宁段TJ-10标DK576+300~DK577+710段路堑边坡防护型式详见“附表1”。路堑边坡采用锚杆框架梁防护,锚杆框架梁分为拱形框架梁及矩形框架梁两种形式,拱形及矩形骨架厚度0.6m,挡水沿宽0.1m,且挡水沿高出横纵梁0.1m,纵梁宽0.6m,横梁及拱圈宽0.4m,纵梁与纵梁间的护角宽0.8m,厚0.3m,最下边设C25混凝土基础宽0.6m,高1.0m,每榀框架梁与框架梁之间留有0.02m伸缩缝,用聚乙烯泡沫板填充,框架梁采用C35钢筋混凝土现场浇筑,框架梁梁内铺六边形砼空心块,每榀框架梁设置6孔锚杆,锚杆采用直径32mm的HRB400钢筋,锚杆长度均为10m,锚孔孔径0.1m,以20°角下倾。锚杆格梁纵梁与上一级 边坡骨架的主骨架对应布设,保证边坡排水通畅。
1