電大巖土力學(xué)期末復(fù)習(xí)試題及參考答案資料小抄(電大專升本必備)-在線瀏覽
2024-07-30 05:33本頁(yè)面
【正文】 60ddCu ? ， ? ?6010230dddCc ? 10d ， 30d ， 60d 為粒徑分布曲線上小于某粒徑的土粒含量分別為 10%， 30%， 60%時(shí)所對(duì)應(yīng)的粒徑?？辜魪?qiáng)度試驗(yàn)的方法有室內(nèi)試驗(yàn)和野外試驗(yàn)等，室內(nèi)最常用的是直剪試驗(yàn)、三軸壓縮試驗(yàn)和無(wú)側(cè)限抗壓強(qiáng)度試驗(yàn)等。 3. 確定地基承載力的方法有那些？ 答： (1)按土的強(qiáng)度理論確定地基承載力（普朗特極限承載力公式、太沙基極限承載力公式、魏錫克極限承載力公式） 4 (2)規(guī)范查表方法（ 根據(jù)野外堅(jiān)定結(jié)果或土的物理性質(zhì)指標(biāo)查表確定）。 ? 39。 ? 39。39。 39。 39。 ? ?? f 39。39。? f 39。39。39。 該曲線共分三段。 τo為剪斷面上的摩擦力 (剩余強(qiáng) 度 ) 5. 什么叫滑坡？滑坡滑動(dòng)面的形式有幾種 當(dāng)巖坡受力過(guò)大或巖石強(qiáng)度過(guò)低，一部分巖體向下或向外滑動(dòng)叫滑坡，滑波滑動(dòng)面有三種：軟弱結(jié)構(gòu)面；結(jié)構(gòu)面；在巖體中。 解：（ 1）試樣的天然容重 ??? gvm 332 mkg1067 024 0 ???? （ 2）含水量 %%100190 190240%100msmw ??????? （ 3）孔隙比 ? ? ? ? 3w ??? ?????? ????? （ 4）飽和度 % ??????? 2. 有一 8m厚的飽和粘土層，上下兩面均可排水，現(xiàn)從粘土層中心處取得 2cm 厚的試樣做固結(jié)試驗(yàn)（試樣上下均有透水石）。 解： zz ?? ? zyx K ??? 0?? 洞壁： σ1=2σz σ 3=0 ??? ?? cctg231 31 ?? ? ?sin (穩(wěn)定 ) ???? ?? sin231 31 ??? ? cctg (極限平衡 ) ??? ?? cctg231 31 ?? ? ?sin (不穩(wěn)定 ) 4. 某圓形洞室圍巖 ? =25 千牛 /米 3，埋置深度 H=160 米，洞的半徑 70?r 米。 系數(shù) k1曲線 系數(shù) k2曲線 解： 4160250 ???? Hp ? MPa， ??cp ，則由 ?31?? 查圖 627 和圖 628 的曲線得： ?k ， ?k 所以 ????????? ckrkp a ? MPa 6 請(qǐng)您刪除一下內(nèi)容， O(∩ _∩ )O 謝謝！??！【 China39。s animation outpouring that are not to be missed. Let39。 violence, and lack of suitability for children39。s real name was Nasreddin. He was wise and witty and, more importantly, he had the courage to resist the exploitation of noblemen. He was also full of passion and tried his best to help poor people. Adventure of Shuke and Beita【舒克與貝塔】 Adventure of Shuke and Beita (Chinese: 舒克和貝塔 ) is a classic animation by Zheng Yuanjie, who is known as King of Fairy Tales in China. Shuke and Beita are two mice who don39。s contents on the stone wall of a white cloud cave in the mountains. He was then punished with guarding the book for life by the jade emperor for breaking heaven39。s natural scenery. Pleasant Goat and Big Big Wolf【喜洋洋與灰太狼】 Pleasant Goat and Big Big Wolf (Chinese:喜羊羊與灰 太狼 ) is a Chinese animated television series. The show is about a group of goats living on the Green Pasture, and the story revolves around a clumsy wolf who wants to eat them. It is a popular domestic animation series and has been adapted into movies. Nezha Conquers the Dragon King（ Chinese: 哪吒鬧海） is an outstanding animation issued by the Ministry of Culture in 1979 and is based on an episode from the Chinese mythological novel Fengshen Yanyi. A mot
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