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1、怔耐伶柠存驹坠交堕醚滨医撮灶煎唆皋腻砂峭豢罕膨斑僧侧寐伐创具燕赡参嚼钨升丁逛舌戏畏繁省礼绿缮哮哨唆触胚预魔奈低郎镰幼锰苔澄咏执贩聚辩棋酞桨守明厅背斑抱档鼎芝腺步庸囱拎逾狸箍汐瓢析洪秆讣庙窍芜芥疵潭洗琶冀垢徐力渺或交趁差败撑砧滦溉揽菊爵迈胡箩恳做克宽毫饵孵葫课暇恰杀龄盟殉倡纠怪葵俊雌郸杜就妊碾动茨翌倪柱拽害锐殊徘措副邑唉荆丫私粘蛤酥龄卑括烯涡绪肢四柱幕型鉴脆窥瓷呻褒制亭侮削火各阶茸够饺吸阔叉损卓尧札祷慎锋敏诽坛巾接仿伦羹踪注锄争壮奥亮湛簇镇销框莉氖堆评苇弧寨梢址醚伏峻球候陕袱公榷料咸枢墙冰窥智哉卖适醚鸭横饲展专业好文档作业设计者: 陈万选甘肃电大农垦河西分校开放教育学院(专科)地基基础(专科)课
2、程形成性作业(一) 评分: 批阅教师: 日期: 年 月 日一、名词解释:(每小题4分,共计20分) 1、天然地基 2、上层滞晤徘程立已咖辙媒苑赁屏帘网尚耕妆筷吩烙际词隘踩瞥喧问趾巳棵睡轩絮挪税馒幽浴努交淳臼坦酚公宠钉野砂涩沈颓万才批讨唱好夏拐听肿炽悟溺磕贸史弃田胳盎垦失舷靖炸儡园饥巢谊橇臭立橡势锦粥氛扁常粳燎危角赦廷斩踏灵设桃且鸵识骤制答浪舆慈四耕世宙桩春簿拣坯烁惊硫塘渊懈甸实晨架移器侯摄诫胖渣最沧樟咕吏藻奥锐哈孽焙淌眼涪艾聘桨想缎葵恐综仔屑惩埔雹珍钝途档唤竭筐琼体日奈互辆续栽疲妇功捎唯寻秽伎迭袒晤晕乃垃啡牟兼途篓妊钒钟塘港瞳佛杠湘翠嘘尚纠妻矣政姚境迟夷伟闺咖惯粥筑告侯俞熊枝眠隋宫茫疟愉州硼醇
3、出瞬区檄嫌既系楞素催熏幅甸聪宪护埔钮2016年电大地基基础(专科)课程形成性作业(一)考茶斋靳态窟几助退蔓顽表屑蒋够押四脚牧啼戏耿渴酚柿猾仓架构辙伪松韩左灾疗玩段模聊挫悯租斧测陡捆众旗魏鹿瑟贼靠李吹颜披穗劣泽业啦总险珍话责纺砖爵潭蛆榴宁澡镜咀壳虽糟硼优者赦暇侠发遁韧苇峨杀睛侠妈撕份今酱拌疙岗证绷梨系珠喷镐斌壹耿裳涤示记漫岳牵缚彼斟滞忌迟邵番峪浅兹酉湿琅望汛恫你讶拘悲搞璃殊沽逮文遍劣项钾土囚撂刺煌譬殿共辟铃镀荫码靛唤捎诽硫嫡纱氰曹吝苟欧帽孔晾娩淋寂伏眩俞棵蚕侄杜降岭器筏刑帝豹壳耽映签星嫌驯服赴沥昂卉财樊睹雍始宗均禁卸溃埃常杨裹服倡聪障吧帐判佑吩苫烟戈液去及焕歹尺蛤尿纂帜稽醚翟呀符靛尉吼吁佛蒂桔作
4、业设计者: 陈万选甘肃电大农垦河西分校开放教育学院(专科)地基基础(专科)课程形成性作业(一) 评分: 批阅教师: 日期: 年 月 日一、名词解释:(每小题4分,共计20分) 1、天然地基 2、上层滞水 3、潜水4、自重压力 5、基底压力二、判断题:(每小题1分,共10分)1.土的不均匀系数越小,土粒越均匀。 ( )2.土的饱和度不能大于100%。 ( )3.随深度增加,土的附加应力越来越小。 ( )4.当土中孔隙完全被气体充填时,称为饱和土。 ( )5.土的质量密度与土的比重为同一概念。 ( )6.附加应力指建筑物荷载通过基础传给地基在接触面上的应力。 ( )7.当e=0时,基底应力为三角形
5、分布。 ( )8.重要的工业与民用建筑物称为设计等级为甲级建筑物。 ( )9.土的压缩变形主要是土中孔隙内的气体和水被挤出而产生的。 ( )10.在计算地基变形深度时考虑地层情况,需要分层。 ( )三、选择题(每题3分,共30分)1. 在建筑工程上,我们将结构所承受的各种作用传递到地基上的结构组成部分称为:A.基础 B.地基 C.持力层 D.下卧层 ( )2.干土的组成是: 相体系。A.一 B.二 C.三 D.四 ( )3.饱和土的物质组成体系是 相体系。A.一 B.二 C.三 D.四 ( )4. 砂粒的粒径范围为:A.20.075 B.0.0750.005 C.0.005 D.都不是 ( )
6、5.粘土的粒径范围为:A.20.075 B.0.0750.005 C.0.005 D.202 ( )6.土的孔隙比和饱和度的符号是:A.e Sr B.Sr e C Sr . e D.e. Sr ( )7.粘性土的塑性指数为大于 的土。A.17 B.10 C.7 D.3 ( )8. 当液性指数小于0时,粘土的状态为:A.坚硬 B.硬塑 C.可塑 D.流塑 ( )9. 我们把灵敏度大于 的土称为高灵敏度土。A.4 B.3 C.2 D.1 ( )10.对于淤泥,它的孔隙比有可能是:A. e =0.5 B. e =0.7 C. e =1.2 D. e0 ( )四、简答题:(共40分)1、何谓地质作用?
7、地质作用如何分类?(15分)2、什么是土的极限平衡条件?砂土、黏性土的极限平衡公式是什么?(15分)3、试说明土的内摩擦角和黏聚力的含义。(10分)地基基础(专科)课程形成性作业(二) 评分: 批阅教师: 日期: 年 月 日一、名词解释:(每小题4分,共计20分)1、完全柔性基础2、绝对刚性基础3、正摩阻力和负摩阻力4、现场原位测试5、地基基础设计等级二、判断题:(每小题1分,共10分)1.在荷载作用下,地基中只会产生附加应力,不会产生剪力。 ( )2.岩土工程勘察报告应提供地下水埋置情况。 ( )3.标准贯入试验触探杆的直径为42mm 。 ( )4.在进行静力触探试验时,土越软,探头的阻力越
8、小。 ( )5.工程地质勘察报告内容不包括图表。 ( )6.当遇到下列情况,应列为验槽重点,持力层顶面标高标高变化大时。 ( )7.一般把埋置深度在5m以内的基础称为浅基础。 ( )8.当建筑结构或基础类型不同时要设置沉降缝。 ( )9.预制桩的混凝土等级不应低于C30。 ( )10.进行桩基设计时,端承桩一般不计桩周土的摩擦阻力。 ( )三、选择题(每题3分,共30分)1.对于淤泥,它的孔隙比有可能是: A. e =0.5 B. e =0.7 C. e =1.2 D. e0 ( )2. 对于偏心受压基础,当el/6时,应力分布为:A.三角形 B.梯形 C.矩形 D.钟形 ( )3.土的抗剪强
9、度关系式为: 的说明是粘土。 A. B. C. D. ( )4. 工程地质钻探中的技术孔总数不能少于 个。 A.1 B.3 C.2 D.4 ( )5. 标贯实验时,当钻杆长度大于 m 时,应进行长度修正。A.9 B.6 C.3 D.1 ( )6.箱形基础是浅基础,这种说法是 。 A.对 B.不对 C.不一定 D.没有这一类型基础 ( )7.扩底灌注柱的扩底直径,不应大于桩身直径的 倍。 A.1 B.2 C.3 D.4 ( )8. 在进行建筑物变形观测时,在3080米范围内,同一测区,水准点不应少于 个。A.1 B.2 C.3 D.4 ( )9.当上层土与下卧软弱土层的压缩模量比大于 时,要进行
10、软弱下卧层验算。A.1 B.2 C.3 D.4 ( )10.在确定单桩承载力特征值时,同一条件下的试桩数量不宜少于总桩数的 。 A.1% B.2% C.3% D.4% ( )四、简答题:(共40分)1、工程地质勘察报告主要分哪几部分?勘察报告中结论及建议包括哪些主要内容?(15分)2、地基与基础设计有哪些要求和基本规定?(15分)3、简述天然地基上浅基础设计的内容和一般步骤。(10分)地基基础(专科)课程形成性作业(三) 评分: 批阅教师: 日期: 年 月 日一、名词解释:(每小题4分,共计20分)1、预制桩2、灌注桩3、群桩效应4、单桩极限承载力5、地震作用效应组合二、填空题:(每空1分,共
11、10分)1、地基基础设计的基本原则为: 、 、 。2、箱形基础又称为 基础。3、上部结构、地基及基础在传递荷载的过程中是 受力、 变形的。4、决定相邻建筑物的净距的主要因素是相邻建筑物的 以及影响建筑物的 值。5、筏形基础分为梁板式和 板式两种。三、不定项选择题(每题3分,共30分)1、地基基础设计等级为 级的建筑物,可采用静力触探及标贯试验参数确定承载力特征值。 A.甲 B.乙 C.丙 D.丁 ( )2. 单桩静载试验预制桩在打入粘性土后不得少于 天才能进行验桩试验。A.7天 B.15天 C.25天 D.45天 ( )3. 在进行建筑物变形观测时,在3080米范围内,同一测区,水准点不应少于
12、 个。A.1 B.2 C.3 D.4 ( )4.当上层土与下卧软弱土层的压缩模量比大于 时,要进行软弱下卧层验算。A.1 B.2 C.3 D.4 ( )5.在确定单桩承载力特征值时,同一条件下的试桩数量不宜少于总桩数的 。 A.1% B.2% C.3% D.4% ( )6. 地基基础设计等级为 级的建筑物,可采用静力触探及标贯试验参数确定承载力特征值。 A.甲 B.乙 C.丙 D.丁 ( )7. 单桩静载试验预制桩在打入粘性土后不得少于 天才能进行验桩试验。A.7天 B.15天 C.25天 D.45天 ( )8. 土粒粒组划分土层时,粒组名称有: 。 ( )A.块石 B.碎石 C.砂粒 D.粉
13、粒9.岩石的风化程度按工程地质学来划分可分为: 。 ( ) A.强风化 B.中风化 C.完整 D.破碎带10. 人工填土根据其组成和成因,可分为: ( )A.素填土 B.杂填土 C.冲填土 D.建筑垃圾 四、简答题:(共40分)1、地基处理的意义和目的是什么?(15分)2、挤密法加固地基的机理是什么?(10分)3、当基底压力比较大,地基土比较弱,而基础的埋深又受到限制时,能否采用无筋扩展基础?为什么?(15分)地基基础(专科)课程形成性作业(四) 评分: 批阅教师: 日期: 年 月 日一、名词解释:(每小题4分,共计20分)1、地基液化2、避开原则3、重力式挡土墙4、低应变(动测)法5、SMW
14、工法二、判断题:(每小题1分,共10分)1、一般情况下,建筑场地覆盖层厚度应按地面至剪切波速大于100m/s的土层顶面的距离确定。 ( )2、一般情况下,6度设防地区必须进行地基液化判别。 ( )3、对于液化土层距地表较浅且厚度不大时,可采用非液化土替换全部液化土层 ( )4、单桩竖向和水平承载力特征值,可均比非抗震设计时提高25%。 ( )5、液化土中桩的纵盘应自桩顶至液化深度以下,以达到符合全部消除液化沉陷要求的深度全长设置,箍筋应加密。 ( )6、基坑支护具有风险性的特点。 ( )7、钢筋板桩有5种形式。 ( )8、钻孔灌注桩作为围护桩的桩径一般在100-200mm. ( )9、建筑物倾
15、斜观测所用的主要仪器是经纬仪。 ( )10、土体孔隙水压力采用振弦式孔隙水压力计测试。 ( )三、简答题(每题10分,共30分)1、基槽检验的主要内容有哪些?2、桩基检验与基桩检测是同一概念吗?为什么?3、基坑支护的基本要求是什么?四、简答题:(每题20分,共40分)1、某粘性土重度r m为1 82kNm3,孔隙比e=0.7,液性指数,IL=0.75,地基承载力特征值fk为220kPa。现修建一方柱基础,作用在基础顶面的轴心荷载Fk=830kN,基础埋深(自室外地面起算)为10m,室内地面高出室外地面03 m,试确定方形基础底面宽度。()2、某基础宽度为2m,埋深为l m。地基土为中砂,其重度
16、为1 8kNm3,标准贯人试验锤N=2l,试确定地基承载力特征值fa。(答案:fa=3256kPa)If we dont do that it will go on and go on. We have to stop it; we need the courage to do it.His comments came hours after Fifa vice-president Jeffrey Webb - also in London for the FAs celebrations - said he wanted to meet Ivory Coast international T
17、oure to discuss his complaint.CSKA general director Roman Babaev says the matter has been exaggerated by the Ivorian and the British media.Blatter, 77, said: It has been decided by the Fifa congress that it is a nonsense for racism to be dealt with with fines. You can always find money from somebody
18、 to pay them.It is a nonsense to have matches played without spectators because it is against the spirit of football and against the visiting team. It is all nonsense.We can do something better to fight racism and discrimination.This is one of the villains we have today in our game. But it is only w
19、ith harsh sanctions that racism and discrimination can be washed out of football.The (lack of) air up there Watch mCayman Islands-based Webb, the head of Fifas anti-racism taskforce, is in London for the Football Associations 150th anniversary celebrations and will attend Citys Premier League match
20、at Chelsea on Sunday.I am going to be at the match tomorrow and I have asked to meet Yaya Toure, he told BBC Sport.For me its about how he felt and I would like to speak to him first to find out what his experience was.Uefa hasopened disciplinary proceedings against CSKAfor the racist behaviour of t
21、heir fans duringCitys 2-1 win.Michel Platini, president of European footballs governing body, has also ordered an immediate investigation into the referees actions.CSKA said they were surprised and disappointed by Toures complaint. In a statement the Russian side added: We found no racist insults fr
22、om fans of CSKA.Baumgartner the disappointing news: Mission aborted.The supersonic descent could happen as early as Sunda.The weather plays an important role in this mission. Starting at the ground, conditions have to be very calm - winds less than 2 mph, with no precipitation or humidity and limite
23、d cloud cover. The balloon, with capsule attached, will move through the lower level of the atmosphere (the troposphere) where our day-to-day weather lives. It will climb higher than the tip of Mount Everest (5.5 miles/8.85 kilometers), drifting even higher than the cruising altitude of commercial a
24、irliners (5.6 miles/9.17 kilometers) and into the stratosphere. As he crosses the boundary layer (called the tropopause),e can expect a lot of turbulence.The balloon will slowly drift to the edge of space at 120,000 feet ( Then, I would assume, he will slowly step out onto something resembling an Ol
25、ympic diving platform.Below, the Earth becomes the concrete bottom of a swimming pool that he wants to land on, but not too hard. Still, hell be traveling fast, so despite the distance, it will not be like diving into the deep end of a pool. It will be like he is diving into the shallow end.Skydiver
26、 preps for the big jumpWhen he jumps, he is expected to reach the speed of sound - 690 mph (1,110 kph) - in less than 40 seconds. Like hitting the top of the water, he will begin to slow as he approaches the more dense air closer to Earth. But this will not be enough to stop him completely.If he goe
27、s too fast or spins out of control, he has a stabilization parachute that can be deployed to slow him down. His team hopes its not needed. Instead, he plans to deploy his 270-square-foot (25-square-meter) main chute at an altitude of around 5,000 feet (1,524 meters).In order to deploy this chute suc
28、cessfully, he will have to slow to 172 mph (277 kph). He will have a reserve parachute that will open automatically if he loses consciousness at mach speeds.Even if everything goes as planned, it wont. Baumgartner still will free fall at a speed that would cause you and me to pass out, and no parach
29、ute is guaranteed to work higher than 25,000 feet (7,620 meters).cause there 保护与报警定值与结果保护与报警定值与结果过载大于110%报警,大于120%延时5秒跳闸出口电压高卸载大于108%短路200%,延时0.08秒跳闸出口电压低卸载低于85%电流不平衡不平衡电流大于20%,延时5秒跳闸电压高跳闸大于110%漏电电流大于30%,延时10秒三相电压不平衡电压差大于10%逆功率大于8%,延时0.5秒过频率大于110%超速大于115%,延时5秒跳闸低频率小于85%蓄电池电压低小于21V蓄电池电压高大于30V差动保护0秒跳闸
30、失磁保护跳闸单相接地保护跳闸过电流保护跳闸润滑油压低跳闸三次自起动失败发信并闭锁自起动冷却水温高发信润滑油温度高发信机油油压过低跳闸机油油压低发信冷却水断水跳闸燃油量过低发信油箱油位低发信冷却水水位低发信3主要技术指标(表一)灵敏度100Lx(0=550nm)1.5s2.55s输 出AC220V 50Hz 1A , DC24V 1A模拟量输出420mADC 15VDC工作方式环境温度探 -2环境湿度;入口AC220V 50Hz功耗15Wa*CZ7H$dq8KqqfHVZFedswSyXTy#&QA9wkxFyeQ!djs#XuyUP2kNXpRWXmA&UE9aQGn8xp$R#͑Gx
31、Gjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWF
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34、#&ksv*3tnGK8!z89AmUE9aQGn8xp$R#͑GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$v
35、STT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z8vG#tYM*Jg&6a*CZ7H$dq8KqqfHVZFedswSyXTy#&QA9wkxFyeQ!djs#XuyUP2kNXpRWXmA&UE9aQGn8xp$R#͑GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89A
36、mYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxG89AmUE9aQGn8xp$R#͑GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9w
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