学术
摘 要:
东平湖滞洪区是黄河山东段的重要防洪工程.由于滞洪区围坝的坝体填筑质量差,坝基未经防渗处理,滞洪时,坝体和坝基渗水较严重,容易产生管涌、流土等渗透破坏,危及围坝安全.在此次堤坝加固工程中,采用塑性混凝土防渗墙截渗方案.本文主要对塑性混凝土配合比设计及材料的力学性能进行研究,实现材料＂高极限应变＂的要求,同时简化材料组分,降低工程造价,简化施工工艺.[著者文摘]
文章出处:
《水力发电学报》-2006年25卷4期,107 -92-95,107页
分 类 号:
文献标识码:
A
Study on the plastic concrete cut-off walls of border dam in Dongping Lake district of flood detention
DENG Mingji, XU Qianjun, CAO Xianfeng （ State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beinjing 100084）
Abstract:
The Dongping Lake district of flood detention is the important flood-prevention project of the Yellow River in Shandong province. Because the dam body is poorly filled and the basement is not strengthened, a large amount of water effuses from the dam. This flow can lead to some breaches as blowout and piping etc, which endanger the dam. To reinforce the dam, the plastic concrete cut-off walls are used to prevent the seepage. In this paper, the design of plastic concrete mix and its mechanics properties are studied and the mixture that has big maximum strain is researched. At the same time, the research also predigests the composite and workmanship, and reduces the capital costs.[著者文摘]
Key words:
hydraulic material; plastic concrete; test research; cut-off wall; Dongping Lake border dam
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