發(fā)布時(shí)間：2018-11-15 14:28

【摘要】：利用測(cè)井技術(shù)研究水電工程巖體結(jié)構(gòu)和質(zhì)量已被證明為一種可靠的方法。為評(píng)價(jià)卡里巴電站南岸擴(kuò)機(jī)工程Sd01部位、進(jìn)水口閘門(mén)井和進(jìn)水口上游圍堰巖體地質(zhì)條件和結(jié)構(gòu)特性,基于聲學(xué)與光學(xué)測(cè)井技術(shù)開(kāi)展了相關(guān)部位的現(xiàn)場(chǎng)試驗(yàn)研究,獲得了上述部位的覆蓋層厚度、基巖風(fēng)化特征、基巖裂隙發(fā)育情況和基巖波速分布特性。試驗(yàn)結(jié)果表明:上述部位的水位分別為11.7,13.1,14.1~16.5 m;平均波速分別為3 200,3 500,2 000 m/s;覆蓋層厚度分別為21,26,30 m;Sd01部位和閘門(mén)井巖體較完整,主要裂隙統(tǒng)計(jì)分別為12條和11條;上游圍堰巖體較破碎,強(qiáng)風(fēng)化。
[Abstract]:It has been proved to be a reliable method to study the rock mass structure and quality of hydropower engineering by using logging technology. In order to evaluate the geological conditions and structural characteristics of the Sd01 site of the south bank expander project, the intake gate well and the upstream cofferdam of the inlet of the Kariba Hydropower Station, the field tests of the relevant parts are carried out based on acoustic and optical logging techniques. The thickness of overburden, the weathering characteristics of bedrock, the development of bedrock fissure and the velocity distribution of bedrock wave are obtained. The results show that the water level of the above parts is 11.7g / 13.1 ~ 14.1g / L 16.5 m, the average wave velocity is 3 200 ~ 3 500 ~ 2 000 m / s, the thickness of the overburden is 21 ~ 2630 m / s, and the average wave velocity is 3 200 ~ 3 500 ~ 2 000 m / s, respectively. The Sd01 site and the Zhaomen well rock mass are relatively complete, the main fractures are 12 and 11, respectively, and the upstream cofferdam rock mass is relatively broken and weathered strongly.
【作者單位】： 長(zhǎng)江科學(xué)院水利部巖土力學(xué)與工程重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(41202223,51409013) 中央級(jí)公益性科研院所基本科研業(yè)務(wù)費(fèi)項(xiàng)目(CKSF2016045/YT)
【分類(lèi)號(hào)】：TV223

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