浙江舟山Ⅱ類場(chǎng)地剪切波速不確定性研究
[Abstract]:The shear wave velocity of soil is an important parameter of soil dynamic characteristics. The research on shear wave velocity and its related aspects is one of the important research contents in the field of earthquake resistance in geotechnical engineering. The magnitude of shear wave velocity can not only reflect the propagation ability of medium to wave, but also reflect the "soft and hard" degree of soil mass. It can evaluate site soil type, soil cover thickness, distinguish seismic liquefaction of sand or silt foundation, calculate dynamic shear modulus of soil and aseismic design of building, etc. Therefore, it has very important theoretical value and engineering practical significance. It is widely used in major projects, primary buildings and buildings with special technical requirements. However, one of the most important characteristics of geotechnical materials is the uncertainty and variability of geotechnical parameters. Rock and soil is a very complex geological body. Because of the difference of soil layer characteristics, geological origin and soil structure, the shear wave velocities of the same soil layer are obviously different under different conditions. Moreover, in practical engineering application, factors such as drilling depth, underground burial situation, testing method, testing personnel and other factors all have a great influence on the test results of shear wave velocity, which makes the same test point. In the case of multiple tests, the shear wave velocities will also have obvious differences, so if the uncertainty of shear wave velocity can be estimated scientifically, The more it can reflect the true shear wave velocities of the soil layer or the reasonable range of the shear wave velocities, the more accurately it can reflect the true state of the soil layers. Therefore, according to the existing wave velocity data, combined with the measured shear wave velocities, Research and analysis of its uncertainty, this is a very meaningful research work. In this paper, a pioneering park in Dinghai District of Zhoushan is used as the testing site of shear wave velocity through field measurement, and several tests are carried out in the same borehole to obtain wave velocity data, and statistical analysis is carried out around the uncertainty of shear wave velocity. The main works are as follows: (1) before the experiment, a large number of domestic and foreign literature on shear wave velocity and scientific research data were consulted, and the current research situation of shear wave velocity at home and abroad was systematically analyzed and summarized. The main problems existing in the study of shear wave velocity and the main research directions in the future are also discussed. (2) this paper systematically introduces the testing technology of site shear wave velocity, including the measuring principle, testing method and technical parameters of shear wave velocity; It also introduces several kinds of testing instruments which are widely used at present, including the scope of application, test methods, advantages and disadvantages of the instruments. (3) in this paper, a start-up park in Dinghai District of Zhoushan is used as the testing site of shear wave velocity, and the same borehole is tested many times. The testing method is single hole method, and the test points are arranged at a interval of 1 m from bottom to top. A total of 35 groups of samples have been tested. The uncertainty of test results is analyzed statistically. (4) the uncertainty of shear wave velocity is studied from the following three aspects: the uncertainty of the shear wave velocity in the same buried depth, the uncertainty of the shear wave velocity in the main soil layer and the uncertainty of the equivalent shear wave velocity. The frequency distribution curve of shear wave velocity is analyzed by using 2c test method, and the eigenvalues of shear wave velocity in three cases are statistically analyzed, and the corresponding 95 ~ 85th part is given by the direct calculation method of percentile method. The upper and lower bound of 75% reference value and the fluctuation range of relative average value can be used to test the reliability of the measured results of shear wave velocity.
【學(xué)位授予單位】:東華理工大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:TU435
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 劉紅帥;鄭桐;薄景山;劉德東;齊文浩;;粘性土剪切波速不確定性的統(tǒng)計(jì)分析[J];世界地震工程;2010年S1期
2 尚銀生;楊進(jìn)堂;;土層等效剪切波速與平均剪切波速對(duì)比分析[J];山西建筑;2006年10期
3 鄧春林;;泉州市規(guī)劃區(qū)剪切波速與地基土類型關(guān)系[J];福建建筑;2006年05期
4 齊文浩;劉德東;張宇東;張忠利;;剪切波速推測(cè)的工程應(yīng)用[J];防災(zāi)科技學(xué)院學(xué)報(bào);2007年04期
5 張藝峰;姚道平;蔡宗文;葉友權(quán);;灰關(guān)聯(lián)分析在確定土層剪切波速中的應(yīng)用[J];勘察科學(xué)技術(shù);2008年05期
6 賈婧;馮啟民;高惠瑛;;土層等效剪切波速空間模擬方法研究[J];世界地震工程;2009年01期
7 李平;薄景山;孫有為;;剪切波速差異性對(duì)地震反應(yīng)的影響[J];世界地震工程;2010年S1期
8 安海鋒;;關(guān)于估算各土層剪切波速引發(fā)的新問(wèn)題[J];山西建筑;2011年04期
9 齊靜靜;;山東東營(yíng)城區(qū)剪切波速回歸分析及應(yīng)用[J];勘察科學(xué)技術(shù);2011年02期
10 張宇輝;張獻(xiàn)民;程國(guó)勇;;土石混合介質(zhì)中石料間隙土壓實(shí)度剪切波速評(píng)價(jià)研究[J];巖土工程學(xué)報(bào);2011年06期
相關(guān)會(huì)議論文 前10條
1 張宇輝;張獻(xiàn)民;;含石量對(duì)土石混合介質(zhì)剪切波速的影響分析[A];巖石力學(xué)與工程的創(chuàng)新和實(shí)踐:第十一次全國(guó)巖石力學(xué)與工程學(xué)術(shù)大會(huì)論文集[C];2010年
2 石兆吉;王承春;;預(yù)測(cè)輕亞粘土液化勢(shì)的剪切波速法[A];中國(guó)地震學(xué)會(huì)第二屆代表大會(huì)暨學(xué)術(shù)年會(huì)論文摘要匯編[C];1984年
3 汪聞韶;;土工地震減災(zāi)工程中的一個(gè)重要參量——剪切波速[A];中國(guó)地震學(xué)會(huì)第四次學(xué)術(shù)大會(huì)論文摘要集[C];1992年
4 王建華;曲延大;周揚(yáng)銳;程國(guó)勇;張立;;土層剪切波速的原位與室內(nèi)對(duì)比試驗(yàn)研究[A];中國(guó)土木工程學(xué)會(huì)第九屆土力學(xué)及巖土工程學(xué)術(shù)會(huì)議論文集(下冊(cè))[C];2003年
5 侯興民;趙昌朋;曲淑英;劉文勇;;一種剪切波速測(cè)試數(shù)據(jù)處理軟件[A];第三屆全國(guó)防震減災(zāi)工程學(xué)術(shù)研討會(huì)論文集[C];2007年
6 侯興民;趙昌朋;曲淑英;劉文勇;;一種剪切波速測(cè)試數(shù)據(jù)處理軟件[A];第三屆全國(guó)防震減災(zāi)工程學(xué)術(shù)研討會(huì)論文集[C];2007年
7 周燕國(guó);陳云敏;社本康廣;;彎曲元剪切波速測(cè)速技術(shù)在土工離心模型試驗(yàn)中的應(yīng)用[A];中國(guó)水利學(xué)會(huì)2007學(xué)術(shù)年會(huì)物理模擬技術(shù)在巖土工程中的應(yīng)用分會(huì)場(chǎng)論文集[C];2007年
8 李錚;王國(guó)祥;程興;;南京河西地區(qū)淺層土剪切波速特性研究[A];第三屆全國(guó)防震減災(zāi)工程學(xué)術(shù)研討會(huì)論文集[C];2007年
9 丁振坤;夏祖諷;;硬基巖剪切波速定義研究[A];第十七屆全國(guó)反應(yīng)堆結(jié)構(gòu)力學(xué)會(huì)議論文集[C];2012年
10 李錚;王國(guó)祥;程興;;南京河西地區(qū)淺層土剪切波速特性研究[A];第三屆全國(guó)防震減災(zāi)工程學(xué)術(shù)研討會(huì)論文集[C];2007年
相關(guān)博士學(xué)位論文 前8條
1 陳卓識(shí);現(xiàn)場(chǎng)剪切波速測(cè)試誤差及其對(duì)地震動(dòng)影響研究[D];中國(guó)地震局工程力學(xué)研究所;2015年
2 劉瑜;基于顆粒接觸模型的砂土剪切波速研究[D];浙江大學(xué);2010年
3 周燕國(guó);土結(jié)構(gòu)性的剪切波速表征及對(duì)動(dòng)力特性的影響[D];浙江大學(xué);2007年
4 程國(guó)勇;飽和砂土剪切波速與抗液化強(qiáng)度相關(guān)性的研究[D];天津大學(xué);2003年
5 張宇輝;機(jī)場(chǎng)高填方土石混填地基表征壓實(shí)度剪切波分析理論研究[D];南京航空航天大學(xué);2011年
6 汪云龍;先進(jìn)土工實(shí)驗(yàn)技術(shù)研發(fā)與礫性土動(dòng)力特性試驗(yàn)研究[D];中國(guó)地震局工程力學(xué)研究所;2014年
7 姬美秀;壓電陶瓷彎曲元剪切波速測(cè)試及飽和海洋軟土動(dòng)力特性研究[D];浙江大學(xué);2005年
8 王興陳;基于物理性質(zhì)的土體強(qiáng)度和變形特性研究[D];浙江大學(xué);2014年
相關(guān)碩士學(xué)位論文 前10條
1 張麗;剪切波速液化判別方法改進(jìn)研究[D];中國(guó)地震局工程力學(xué)研究所;2015年
2 喻禮生;剪切波速測(cè)試資料反演計(jì)算方法應(yīng)用研究[D];安徽建筑大學(xué);2015年
3 彭華君;圓柱形擊實(shí)試件的剪切波傳播特性及其波速測(cè)試方法研究[D];重慶交通大學(xué);2015年
4 李相斌;浙江舟山Ⅱ類場(chǎng)地剪切波速不確定性研究[D];東華理工大學(xué);2015年
5 何韜;昆明滇池場(chǎng)地剪切波速差異特征及對(duì)場(chǎng)地類別劃分影響[D];東華理工大學(xué);2015年
6 趙娜;剪切波速對(duì)飽和松散砂(粉)土結(jié)構(gòu)性及抗液化強(qiáng)度影響的研究[D];天津大學(xué);2006年
7 侯云亮;西安地區(qū)黃土地基剪切波速與工程特性相關(guān)性的研究[D];長(zhǎng)安大學(xué);2007年
8 張立;剪切波速與振動(dòng)三軸液化聯(lián)合試驗(yàn)裝置的研究及應(yīng)用[D];天津大學(xué);2004年
9 劉宇;剪切波速的不確定性對(duì)設(shè)計(jì)地震動(dòng)參數(shù)的影響[D];中國(guó)地震局工程力學(xué)研究所;2013年
10 張忠利;建設(shè)場(chǎng)地剪切波速的統(tǒng)計(jì)分析[D];中國(guó)地震局工程力學(xué)研究所;2008年
,本文編號(hào):2308746
本文鏈接:http://sikaile.net/kejilunwen/diqiudizhi/2308746.html