一种重叠既有地下连续墙施工新的地下连续墙的成槽工艺制造技术

本发明专利技术公开了一种重叠既有地下连续墙施工新的地下连续墙的成槽工艺。其通过导墙外放，铣槽机刀架向外倾斜，沿导墙以恒定的小斜率向下铣凿成槽。成槽过程中，通过铣槽机刀架的调整板调节刀架以一定斜率凿铣成槽能够避免铣槽机切削到既有连续墙，从而可靠的保护连续墙和铣槽机刀架，因而成槽过程更安全。同时，成槽过程中刀架倾斜凿铣，其受到的切削阻力也更小，切削更加顺畅，效率更高。

Process for forming a new underground continuous wall overlapped with an underground continuous wall

The invention discloses a groove forming technique for overlapping underground continuous walls to construct a new underground continuous wall. Through the outside of the guide wall, the slot milling machine tool knife is inclined outwards and is milled into a groove along the guiding wall with a constant small slope. Grooving process, with a certain slope cut milling groove can avoid milling machine cutting to both continuous wall by adjusting plate slot milling machine tool adjustment tool, so as to protect the reliable continuous wall and milling machine tool, so the grooving process more secure. At the same time, in the process of grooving, the tool holder is inclined, cutting and milling, and the cutting resistance is smaller, the cutting is more smooth and the efficiency is higher.

【技术实现步骤摘要】

【技术保护点】
一种重叠既有地下连续墙施工新的地下连续墙的成槽工艺，包括如下顺序的步骤：　　距既有地下连续墙外放一小段距离施工导墙；　　调整铣槽机刀架的向外倾斜一定角度，按外放的导墙，以向既有地下连续墙外侧倾斜０．３％－０．７％的固定斜率凿铣成槽；　　反复提放刀架，削落槽与既有地下连续墙的夹层间的泥土；　　采用单边带钢丝刷的重锤对既有地下连续墙面进行洗刷，清洗淤泥和未削落的岩土。

【技术特征摘要】

【专利技术属性】
技术研发人员：沈炜东，倪俊强，徐波，田天长，来荣国，张纯东，
申请(专利权)人：中铁二十五局集团轨道交通工程有限公司，中铁二十五局集团有限公司，
类型：发明
国别省市：81