不规则波作用下的混凝土铰链排稳定厚度的试验研究
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摘要
基于某海堤防护工程,将柔性混凝土铰链排技术结合到原刚性的护坡中,利用室内波浪水槽开展了一系列试验,确定适合滨海海域波浪作用下的铰链排的最小稳定厚度。试验结果表明:在不规则波作用下排体所需最小稳定厚度要明显大于规则波作用所需厚度,波高和波周期均是显著影响混凝土铰链排的稳定厚度的关键要素。根据试验结果,比较前人研究公式,拟合出新的不规则波作用下的混凝土铰链排最小稳定厚度的经验公式。
Based on the seawall protection engineering,modified the original rigid structure with the hinged fascine mattress technique,a series of tests were applied at the indoor wave flume to determine the minimum stable thickness of hinged fascine mattress.The results show that the minimum stable thickness of hinged fascine mattress under regular wave is much less than that under irregular wave although both the regular and the irregular wave have similar wave parameters. The wave period is as important as the wave height when determining the stable thickness.The new fitting formula about the minimum stable thickness of hinged fascine mattress was obtained based on the test results and previous formulas.
Based on the seawall protection engineering,modified the original rigid structure with the hinged fascine mattress technique,a series of tests were applied at the indoor wave flume to determine the minimum stable thickness of hinged fascine mattress.The results show that the minimum stable thickness of hinged fascine mattress under regular wave is much less than that under irregular wave although both the regular and the irregular wave have similar wave parameters. The wave period is as important as the wave height when determining the stable thickness.The new fitting formula about the minimum stable thickness of hinged fascine mattress was obtained based on the test results and previous formulas.
引文
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[2]陈学良,张景明.土工织物在长江口深水航道治理工程中的应用[J].水运工程,2000(12):48-52.
[3]徐锡荣,唐洪武,宗竞,等.长江南京河段护岸新技术探讨[J].水利水电科技进展,2004,24(4):26-29.
[4]范期锦.长江口深水航道治理工程的创新[J].中国工程科学,2004,6(12):13-26.
[5]LEIDERSDORF C B,MCDOUGAL W G.Articulated concrete mat slope protection[C]//Twenty First Costal Engineering Conference,1998:2 400-2 415.
[6]张玮,吴苏舒,蒲高军.淹没海滩护底混凝土联锁排稳定厚度公式研究[J].海洋工程,2007,25(4):54-59.
[7]PILARCZYK K.Dikes and revetments design maintenance and safety assessment[M].Rotterdam:A A Balkema,1998:413-416.
[8]天津港湾工程研究所.水运工程土工合成材料应用技术规范:JTJ 239—2005[S].北京:人民交通出版社,2006.
[9]吴苏舒,张玮,李国臣.波浪作用下混凝土联锁排稳定厚度研究[J].中国港湾建设,2006(6):5-8.
[10]周海,马兴华,田鹏,等.水流作用下混凝土联锁块软体排压载失稳机理和计算方法[J].中国港湾建设,2014(9):11-16.
[11]田鹏,马兴华,周海,等.波流作用下混凝土联锁块软体排压载失稳机理和计算方法[J].中国港湾建设2014(10):31-35.
[12]陆培东,王艳红.盐城市滨海港区10万吨级航道工程潮流泥沙物理模型试验及挡沙堤局部冲刷分析[R].南京:南京水利科学研究院,2008.
[13]钟瑚穗.斜坡坡度对波浪最大压力的影响[J].华东水利学院学报,1984(1):142-154.
[14]HUANG X F,PAND M.Research of paddle wave-maker control system based on Jonswap spectrum[J].Advanced materials research,2014:679-684.