浙江大学学报(理学版)
浙江大學學報(理學版)
절강대학학보(이학판)
JOURNAL OF ZHEJIANG UNIVERSITY
2010年
1期
112-116
,共5页
姜小俊%刘南%刘仁义%韩海骞%胡建炯
薑小俊%劉南%劉仁義%韓海鶱%鬍建炯
강소준%류남%류인의%한해건%호건형
强潮区域%桥墩局部冲刷模型%海底声学探测技术%模型验证
彊潮區域%橋墩跼部遲刷模型%海底聲學探測技術%模型驗證
강조구역%교돈국부충쇄모형%해저성학탐측기술%모형험증
strong tide region%pier local scour model%submarine acoustic exploration technologies%model verification
从建立强潮地区桥墩局部冲刷模型的重要性出发,简要介绍了通过水槽试验所建立的杭州湾跨海大桥局部冲刷模型.强潮特性使得杭州湾跨海大桥桥墩局部冲刷的实际数据获取难度较大,据此提出了基于海底声学探测技术的数据获取方案,即利用多波束测深技术进行桥墩局部海床高程测量、利用多普勒声学测量技术进行潮流测量等,同时结合底质钻孔取样进行底质分析.在介绍了实测数据的处理方法后,结合桥墩设计资料进行了模型参数的计算及模型验证,并根据桥墩实际情况对验证结果进行了相关分析,最后肯定了本方案对于强潮地区进行桥墩局部冲刷观测的适用性.
從建立彊潮地區橋墩跼部遲刷模型的重要性齣髮,簡要介紹瞭通過水槽試驗所建立的杭州灣跨海大橋跼部遲刷模型.彊潮特性使得杭州灣跨海大橋橋墩跼部遲刷的實際數據穫取難度較大,據此提齣瞭基于海底聲學探測技術的數據穫取方案,即利用多波束測深技術進行橋墩跼部海床高程測量、利用多普勒聲學測量技術進行潮流測量等,同時結閤底質鑽孔取樣進行底質分析.在介紹瞭實測數據的處理方法後,結閤橋墩設計資料進行瞭模型參數的計算及模型驗證,併根據橋墩實際情況對驗證結果進行瞭相關分析,最後肯定瞭本方案對于彊潮地區進行橋墩跼部遲刷觀測的適用性.
종건립강조지구교돈국부충쇄모형적중요성출발,간요개소료통과수조시험소건립적항주만과해대교국부충쇄모형.강조특성사득항주만과해대교교돈국부충쇄적실제수거획취난도교대,거차제출료기우해저성학탐측기술적수거획취방안,즉이용다파속측심기술진행교돈국부해상고정측량、이용다보륵성학측량기술진행조류측량등,동시결합저질찬공취양진행저질분석.재개소료실측수거적처리방법후,결합교돈설계자료진행료모형삼수적계산급모형험증,병근거교돈실제정황대험증결과진행료상관분석,최후긍정료본방안대우강조지구진행교돈국부충쇄관측적괄용성.
Starting with the importance of setting up pier local scour model for the bridge in the strong tide region, the pier local scour model of Hangzhou Bay sea-crossing bridge built on the flume experiments is introduced. The strong tide in Hangzhou Bay estuary makes it very difficult to obtain the real data of Hangzhou Bay sea-crossing bridge. So a data acquisition approach based on the submarine acoustic exploration technologies is presented, which uses multi-beam bathymetric technology for the pier local seafloor elevation measurement and Doppler acoustic measurement technology for the current observation, and the sediment analysis of the seabed coring is concomitant. After introducing the correlative data processing methods, the model parameters calculation and verification are fulfilled with the bridge design parameters, and then a correlative analysis is made for the verification results with the actual situation of the piers. In the end the applicability of the approach to the pier local scour inspection in the strong tide region is affirmed.