本文選題：海床　切入點(diǎn)：沉積物　出處：《海洋地質(zhì)與第四紀(jì)地質(zhì)》2016年01期 　論文類(lèi)型：期刊論文

【摘要】：設(shè)計(jì)了一套基于電阻率方法的海床蝕積變化原位監(jiān)測(cè)系統(tǒng),該系統(tǒng)能夠在數(shù)米水深處實(shí)施長(zhǎng)距離自動(dòng)監(jiān)測(cè)。系統(tǒng)同時(shí)采用USB海量存儲(chǔ)技術(shù)和GPRS無(wú)線通信兩種數(shù)據(jù)存儲(chǔ)和傳輸方式,可以實(shí)現(xiàn)長(zhǎng)期無(wú)人值守原位監(jiān)測(cè)。利用海水和沉積物兩者電阻率的差異性,把布設(shè)等間距環(huán)形電極的探桿置入海床,連續(xù)測(cè)定海水和海床沉積物界面上下一定范圍內(nèi)的電阻率,找到電性發(fā)生顯著變化的區(qū)間,并采用合適的方法判定界面的具體位置。界面位置隨時(shí)間的變化,即為海床的蝕積變化。實(shí)驗(yàn)室測(cè)試結(jié)果表明該系統(tǒng)測(cè)試的沉積過(guò)程中蝕積變化數(shù)據(jù)與實(shí)際數(shù)據(jù)相符,最大誤差0.3cm。說(shuō)明應(yīng)用該系統(tǒng)測(cè)量海床蝕積狀況具有可行性。
[Abstract]:A set of in-situ monitoring system of seabed erosion change based on resistivity method is designed. The system can carry out long distance automatic monitoring in the depth of several meters of water. At the same time, the system adopts USB mass storage technology and GPRS wireless communication two kinds of data storage and transmission mode. Long-term unattended in-situ monitoring can be realized. By using the difference of resistivity between seawater and sediment, the probe rod with equidistant annular electrodes is placed on the seabed, and the resistivity of the interface between seawater and seabed sediment is continuously measured. Find out the range where the electrical properties change significantly, and use the appropriate method to determine the specific position of the interface. The position of the interface changes with time, The results of laboratory tests show that the change data of corrosion deposits measured by the system are consistent with the actual data, and the maximum error is 0.3 cm. The results show that it is feasible to use the system to measure the corrosion deposition of the seabed.
【作者單位】： 青島理工大學(xué)理學(xué)院;中國(guó)海洋大學(xué)環(huán)境科學(xué)與工程學(xué)院;華僑大學(xué)土木工程學(xué)院;
【基金】：國(guó)家“863”計(jì)劃資助項(xiàng)目(2008AA09Z109) 國(guó)家自然科學(xué)基金項(xiàng)目(40876042、41306051)
【分類(lèi)號(hào)】：P715
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本文編號(hào)：1598576