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Issue:
Study on Construction Technology for Diaphragm Wall in Limerock Area
Author(s):
JIANG Xuewen
,
HONG Sanjin
Pages:
1052
-
1055
Year:
2011
Issue:
12
Journal:
Building Construction
Keyword:
槽底台阶式异标高地下连续墙
;
注浆管防绕流
;
异步水下混凝土开塞
;
先高后低反循环清孔
;
Abstract:
以广州市轨交9号线、5号线工程为例,针对地下连续墙在石灰岩地区岩溶地层岩面起伏变化大且无规律的特点,为确保墙底截水防绕流的效果,提出了"槽底台阶式异标高地下连续墙"、"连续墙预埋注浆管防绕流"等重点施工技术及其相配套的技术措施。该新技术改进了传统连续墙施工工艺,可为今后石灰岩地区的施工提供指导。
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