海堤抛石底界的联合探测方法试验研究
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摘要
如何实现对海堤抛石底界的快速检测是当前水利工程领域研究的热点问题之一。以往主要采用钻孔探测的方法,但施工周期长、成本高且仅一孔之见,故实践中利用该方法难以实现对整个海堤抛石底界的快速检测。鉴于地质雷达方法检测快速且信息连续,提出了地质雷达法与钻孔法进行联合探测的新思路。现场探测试验结果表明,雷达波在抛石体与淤泥层之间存在明显的反射,利用钻孔探测结果对雷达波波速进行标定,可快速有效地实现对海堤抛石底界的整体判定。
How to realize the rapid detection of riprap dumping bottom depth of sea embankment is one of the hot issues in the field of water conservancy engineering. In the past,the borehole detection method was mainly used,but because of its long detection period,high cost and only one hole detection result,it is difficult to realize the rapid detection of the whole riprap dumping bottom depth in practice. In view of the rapid detection and continuous information of GPR,a new idea of combined detection by GPR and borehole was proposed. The results of field comprehensive detection showed that there is obvious reflection of radar wave between the riprap and the silt layer. The velocity of radar wave can be calibrated by the results of borehole detection,which can quickly and effectively judge the whole depth scope of the riprap bottom of the sea embankment.
How to realize the rapid detection of riprap dumping bottom depth of sea embankment is one of the hot issues in the field of water conservancy engineering. In the past,the borehole detection method was mainly used,but because of its long detection period,high cost and only one hole detection result,it is difficult to realize the rapid detection of the whole riprap dumping bottom depth in practice. In view of the rapid detection and continuous information of GPR,a new idea of combined detection by GPR and borehole was proposed. The results of field comprehensive detection showed that there is obvious reflection of radar wave between the riprap and the silt layer. The velocity of radar wave can be calibrated by the results of borehole detection,which can quickly and effectively judge the whole depth scope of the riprap bottom of the sea embankment.
引文
[1]DB33/T839-2011海堤工程爆炸置换该处理的改革技术规范[S].
[2]JTJ/T258-1998爆炸法处理水下地基和基础技术规程[S].
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[5]张家宝.瞬态瑞雷面波法在勘探海堤抛石体中的应用[J].福建地质,2009,28(2):149-153.
[6]邓义龙.地质雷达在海堤抛石底界探测中的应用[J].江淮水利科技,2012(3):43-45.
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[8]王绍彪,朱照拔,陈海新,等.应用多道瞬态瑞雷波法探测海堤抛石层厚度[J].人民珠江,2014,35(2):74-76.
[9]李俊杰,何建设,杜斌.地质雷达在嘉兴某海堤抛石层探测中的应用[J].勘察科学技术,2016(3):56-59.
[10]唐亚辉.地质雷达和TSP法在隧道超前地质预报中的应用[J].人民长江,2015,46(S1):100-102.
[11]王凡,杜松,肖建平,等.地质雷达在引水隧洞回填灌浆探测效果的研究[J].公路交通科技,2016,33(2):82-87,104.
[12]鲁兴林,钱荣毅.地质雷达有限差分逆时偏移方法研究[J].地球物理学进展,2017,32(2):885-890.
[13]范文娟,康迎宾.基于地质雷达的隧道正演模拟研究综述[J].吉林水利,2018(1):14-16.
[14]吕高,杨杰,李宁,等.基于地质雷达法的非饱和黄土介电特性及界面反射机理研究[J].长江科学院院报,2018,35(3):110-115.
[2]JTJ/T258-1998爆炸法处理水下地基和基础技术规程[S].
[3]葛双成,叶可来,梁国钱,等.探地雷达和浅层地震波法在海堤抛石层探测中的应用[J].水利水电科技进展,2008(5):71-73.
[4]葛双成,朱晓源,陈军,等.海堤抛石雷达图像特征及检测效果分析[J].中国港湾建设,2008(5):9-12.
[5]张家宝.瞬态瑞雷面波法在勘探海堤抛石体中的应用[J].福建地质,2009,28(2):149-153.
[6]邓义龙.地质雷达在海堤抛石底界探测中的应用[J].江淮水利科技,2012(3):43-45.
[7]王佳贺.地质雷达在海堤抛石底界探测中的应用[J].兰州工业高等专科学校学报,2012,19(6):39-42.
[8]王绍彪,朱照拔,陈海新,等.应用多道瞬态瑞雷波法探测海堤抛石层厚度[J].人民珠江,2014,35(2):74-76.
[9]李俊杰,何建设,杜斌.地质雷达在嘉兴某海堤抛石层探测中的应用[J].勘察科学技术,2016(3):56-59.
[10]唐亚辉.地质雷达和TSP法在隧道超前地质预报中的应用[J].人民长江,2015,46(S1):100-102.
[11]王凡,杜松,肖建平,等.地质雷达在引水隧洞回填灌浆探测效果的研究[J].公路交通科技,2016,33(2):82-87,104.
[12]鲁兴林,钱荣毅.地质雷达有限差分逆时偏移方法研究[J].地球物理学进展,2017,32(2):885-890.
[13]范文娟,康迎宾.基于地质雷达的隧道正演模拟研究综述[J].吉林水利,2018(1):14-16.
[14]吕高,杨杰,李宁,等.基于地质雷达法的非饱和黄土介电特性及界面反射机理研究[J].长江科学院院报,2018,35(3):110-115.