最新電大工程地質(zhì)形成性考核冊(cè)作業(yè)參考答案小抄-wenkub
2023-06-14 01:57:52 本頁(yè)面
【正文】 擦痕不發(fā)育，節(jié)理兩壁裂開(kāi)距離較大，且裂縫的寬度變化也較大，節(jié)理內(nèi)常充填有呈脈狀的方解石、石英，以及松散工已膠結(jié)的粘性土和巖屑等；張節(jié)理 一般發(fā)育稀疏，節(jié)理間的距離較大，分布不均勻。變質(zhì)巖的構(gòu)造主要包括變余構(gòu)造和變成構(gòu)造。內(nèi)力地質(zhì)作用通過(guò)地殼運(yùn)動(dòng)、地震作用、巖漿作用和變質(zhì)作用改造地球；外力地質(zhì)作用通過(guò)風(fēng)化作用、剝蝕作用、搬運(yùn)作用、沉積作用和成巖作用改造地球。 什么是工程地質(zhì)條件 工程地質(zhì)條件是指與工程建設(shè)有關(guān)的地質(zhì)條件的總和，它包括土和巖石的工程性質(zhì)、地質(zhì)構(gòu)造、地貌、水文地質(zhì)、地質(zhì)作用、自然地質(zhì)現(xiàn)象和天然建筑材料等方面。 土木工程 工程地質(zhì)形成性考核冊(cè)參考答案 形成性考核冊(cè) 作業(yè) 1 一、選擇題 1C 2A 3D 4C 5A 6A 7B 8B 9A 10D 11A 12C 13A 14A 15A 二、判斷題 1 √ 2 3 4 5 6 √ 7 8 9 10 √ 三、簡(jiǎn)答題 簡(jiǎn)述工程地質(zhì)學(xué)及其內(nèi)容。 巖石堅(jiān)硬程度分類(lèi)的依據(jù)是什么？巖石堅(jiān)硬程度類(lèi)型有哪些？ 巖石堅(jiān)硬程度分類(lèi)的依據(jù)是巖石的飽和單軸抗壓強(qiáng)度 rf 。 什么是變質(zhì)巖？變質(zhì)巖有哪些主要礦物、結(jié)構(gòu)和構(gòu)造？常見(jiàn)變質(zhì)巖的鑒別特征是什么？ 由變質(zhì)作用形成的巖石稱(chēng)為變質(zhì)巖。 常見(jiàn)變質(zhì)巖的鑒別特征是特有的變質(zhì)礦物。 ？ 答： 巖石的產(chǎn)狀要素用地質(zhì)羅盤(pán)在巖層層面上直接測(cè)量。測(cè)量?jī)A角時(shí)，需將羅盤(pán)橫著豎起來(lái)，使長(zhǎng)邊與巖層的走向垂直，緊貼層面，等傾斜器上的水準(zhǔn)泡居中后，讀懸錘所示的角度，就 是巖層的傾角 3． 斷層的類(lèi)型及組合形式有哪些？ 答： 斷層的類(lèi)型有： 正斷層、逆斷層和逆掩斷層、平移斷層； 組合形式：階梯狀斷層、地塹和地壘、疊瓦狀構(gòu)造 。殘積土與下面的母巖之間沒(méi)有明顯的界限，其成分與母巖成分及所受風(fēng)化作用的類(lèi)型有密切的關(guān)系。 四．論述題 節(jié)理對(duì)工程建筑的影響 。在路基施工中，如果巖體存在節(jié)理，還會(huì)影響爆破作業(yè)的效果。潛水由高水位流向低水位，所以，垂直于等水位線的直線方向，既是潛水的流向（通常用箭頭方向表示）。在結(jié)構(gòu)薄弱易變形處更應(yīng)加強(qiáng)。在場(chǎng)地烈度的基礎(chǔ)上，考慮工程的重要性、抗震性和修復(fù)的難易程度，根據(jù)規(guī)范進(jìn)一步調(diào)整，得到設(shè)防烈度，設(shè)防烈度是設(shè)計(jì)中采用的烈度。當(dāng)建筑物經(jīng)受不住這種地震力的作用時(shí)，建（構(gòu)）筑物將會(huì)發(fā)生變形、開(kāi)裂，甚至倒塌。 地震激發(fā)地質(zhì)災(zāi)害的效應(yīng)：強(qiáng)烈的地震作用能激發(fā)斜坡上巖土體松動(dòng)、失穩(wěn)，發(fā)生滑坡和崩塌等不良的地質(zhì)現(xiàn)象。（ 4）水文地質(zhì)條件：對(duì)隧洞沿線地下水分析其埋藏運(yùn)動(dòng)條件、類(lèi)型及物理化學(xué)特性等情況。 4． 工程地質(zhì)勘察的任務(wù)是什么？ 答：見(jiàn)教材 P150 其主要任務(wù)是通過(guò)……設(shè)計(jì)方案。 in response to activation of this nerve supply, smooth muscle contracts (notably in the gut), the frequency of heart beat is slowed, and glands secrete. Acetylcholine is also an important transmitter at many sites in the brain at nervetonerve synapses. To understand how acetylcholine brings about a variety of effects in different cells it is necessary to understand membrane receptors. In postsynaptic membranes (those of the cells on which the nerve fibres terminate) there are many different sorts of receptors and some are receptors for acetylcholine. These are protein molecules that react specifically with acetylcholine in a reversible fashion. It is the plex of receptor bined with acetylcholine which brings about a biophysical reaction, resulting in the response from the receptive cell. Two major types of acetylcholine receptors exist in the membranes of cells. The type in skeletal muscle is known as ?nicotinic‘。 also called action painting and the New York school. It was the first important school in American painting to declare its independence from European styles and to influence the development of art abroad. Arshile Gorky first gave impetus to the movement. His paintings, derived at first from the art of Picasso, Mir243。 among other major abstract expressionists were such painters as Clyfford Still, Theodoros Stamos, Adolph Gottlieb, Helen Frankenthaler, Lee Krasner, and Esteban Vicente. Abstract expressionism presented a broad range of stylistic diversity within its largely, though not exclusively, nonrepresentational framework. For example, the expressive violence and activity in paintings by de Kooning or Pollock marked the opposite end of the pole from the simple, quiescent images of Mark Rothko. Basic to most abstract expressionist painting were the attention paid to surface qualities, ., qualities of brushstroke and texture。 the glorification of the act of painting itself as a means of visual munication。 patrons. At the age of ten Caruso began working a variety of menial jobs—mechanic, jute weaver—but his passion for singing often led him back to the streets. Eight years later, an aspiring baritone named Eduardo Missiano heard Caruso singing by a local swimming pool. Impressed, Missiano took Caruso to his voice teacher, Guglielmo Vergine. Vergine on hearing Caruso, pared the tenor‘s voice to ―the wind whistling through the chimney,‖ Michael Scott recounted in The Great Caruso. Although he disliked Caruso‘s Neapolitan caf233。s cooperation with Central Asian countries, a senior official said. 。s business development. Rudy Buttignol, president of the public broadcasting pany in British Columbia, Canada, said
試題試卷相關(guān)推薦
鄂ICP備17016276號(hào)-1