沉管灌注桩桩基础工程课程设计.doc

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1、【精品文档】如有侵权，请联系网站删除，仅供学习与交流沉管灌注桩桩基础工程课程设计.精品文档.基础工程课程设计桩基础设计一：设计资料1、建筑场地土层按其成因土的特征和力学性质的不同自上而下划分为五层，物理力学指标见下表。勘查期间测得地下水位深为2.5m。桩基安全等级为2级，已知上部结构由柱子传来的荷载：相应于荷载效应组合时作用于柱底荷载为：FK =6500kN, 长边方向Myk = 100kNm、Hk = 300kN；柱的截面尺寸为：400400mm； 2、根据地质资料，以粉质粘土为桩尖持力层，沉管灌注桩桩径为500mm;附：1）：土层主要物理力学指标； 附表一：土层名称厚度m含水量%天然重度

2、KN/孔隙比e液性指数直剪 试验（快剪）压缩模量MPa）承载力标准值(kPa)内摩擦角粘聚力C（kPa）11粘土2.528180.80.622225.012粘土3.13219.50.80.622224.02粘土5.340190.950.8516153.03粉质粘土4.130200.750.1020409.04粉质粘土103518.810.90.8018213.0三：桩基础设计（一）：必要资料准备 岩土工程勘察报告：见上页附表（二）：外部荷载及桩型确定 1、选择持力层：10.915.0m，粉质粘土为桩端持力层，桩端进入第三层粉质粘土2.1m, 取承台埋深2.0米。 2、桩型确定：1）、桩为沉管灌

3、注桩； 2）、构造尺寸：桩长L11.0m，桩径d=500mm 3）、桩身：混凝土强度 C30、15MPa、16.5MPa 416 300MPa（三）：单桩承载力确定1、 单桩竖向承载力的确定：根据地基基础规范公式计算： 1、桩端承载力计算： 粉质粘土，0.10，入土深度为13.0m, 2、桩侧土摩擦力： 粘土层1： ， 取47kPa 粘土层2： ， 取35kPa 粉质粘土层1: , 取68kPa桩周长：桩截面积： 单桩承载力标准值：查表 2、桩数和桩的布置： 1、桩数和桩距 取 n=9根 桩距 ： 取 2、桩的布置和承台尺寸及柱排列如下图： 承台长、宽：，承台高h=1.5m, 桩顶深入承台80

4、mm, 保护层100mm, 有效高度(四）：单桩受力验算： 1、单桩所受平均竖向力：867.2kN03、 单桩水平承载力计算： 即 与合力 与的夹角小于 单桩水平承载力满足要求，不需要进一步的验算。 相应于荷载效应基本组合时作用于柱底的荷载设计值： 扣除承台和其上填土自重后的单桩顶竖向力设计值：1043.8kN 906.2kN（五）、承台设计： 承台选用C25混凝土， 1.27MPa1、承台冲切验算： 1）、柱边冲切：冲切力：受冲切承载力截面高度影响系数的计算： 冲跨比与系数的计算：2）、角桩向上冲切：2、承台抗剪验算： 斜截面受剪承载力可按下面公式计算：截面处承台抗剪验算：边上一排桩净反力最

5、大值，按3根桩进行计算。 剪力 承台抗剪时的截面尺寸近似的定为： 截面处承台抗剪验算： 边排桩单桩净反力平均值 ，按4根桩计算。 剪切力 斜截面上受压区混凝土的抗剪强度为： 3、承台弯矩计算及配筋计算： 多桩承台的弯矩可在X，Y两个方向分别按单向受弯计算： 选配 ,沿平行于y轴方向布置选配 ，沿平行于x轴方向布置（六）：群桩承载力验算：1、根据实体基础法进行验算：1）、实体基础底面尺寸计算： 桩所穿过的土层的摩擦角： ， 取 ， 边桩外围之间的尺寸为： 实体基础底面宽： 实体基础底面长：2）、桩尖土承载力设计值： 1 实体基础埋深范围内的土的平均重度（地下水位下取有效重度）2 实体基础底面粉质

6、粘土修正后的承载力特征值为： 根据书上表25 取 ， 3取 ， ， 基础自重为：4实体基础底面压力计算： 当仅有轴力作用时： 考虑轴力和弯矩时计算： 由以上验算，单桩及整体承载力满足要求。（七）、桩的强度验算 桩的截面尺寸为 ，桩长为，配筋为，为通长配筋，钢筋保护层厚度选。 因桩的长度不大，桩吊运及吊立时的吊点位置宜采用同一位置，如下图所示，控制弯矩为吊立时的情况： ， 取动力系数为 ，则 由钢筋混凝土结构设计规范得 选用 ， 桩的配筋构造见图纸。（图纸另附）（英文版 ） Two regulations promulgated for implementation is in the part

7、y in power for a long time and the rule of law conditions, the implementation of comprehensive strictly strategic plan, implementation in accordance with the rules and discipline to manage the party, strengthen inner-party supervision of major initiatives. The two regulations supporting each other,

8、the adhere to a positive advocate, focusing on morality is of Party members and Party leading cadres can see, enough to get a high standard; around the party discipline, disciplinary ruler requirements, listed as negative list, focusing on vertical gauge, draw the party organizations and Party membe

9、rs do not touch the bottom line . Here, the main from four square face two party rules of interpretation: the first part introduces two party Revised regulations the necessity and the revision process; the second part is the interpretation of the two fundamental principles of the revision of laws an

10、d regulations in the party; the third part introduces two party regulations modified the main changes and needs to grasp several key problems; the fourth part on how to grasp the implementation of the two regulations of the party. and revised the necessity and revised history of the CPC Central Comm

11、ittee the amendment to the Chinese Communist Party members and leading cadres honest politics several guidelines and column 1 by 2015 to strengthen party laws and regulations focus. Two party regulations revision work lasted a Years, pooling the wisdom of the whole party, ideological consensus, draw

12、 historical experience, respect for the wisdom of our predecessors, which reflects the unity of inheritance and innovation; follow the correct direction, grasp the limited goals, adhere to the partys leadership, to solve the masses of the people reflect a focus on the problem. The new revision of th

13、e and , reflects the partys 18 and the eighth session of the third, the spirit of the fourth plenary session, reflecting the experience of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the partys eighteen years comprehensive strictly practice. (a) re

14、vised two regulations of the party need of in based on revised, the promulgation and implementation of January 2010, to strengthen the construction of the contingent of leading cadres play an important role. But with the party to manage the party strictly administering the deepening, has not been ab

15、le to fully meet the actual needs. Content is too complicated, eight prohibition, 52 are not allowed to hard to remember, and also difficult to put into practice; the second is concisely positive advocated by the lack of prohibited provisions excessive, no autonomy requirements; the third is banned

16、terms and discipline law, both with the party discipline, disciplinary regulations repeat and Criminal law and other laws and regulations repeat; the fourth is to clean the theme is not prominent, not for the existing problems, and is narrow, only needle of county-level leading cadres above. is in 1

17、997 based on revision, in December 2003 the promulgation and implementation, to strengthen the construction of the party play very important role. Along with the development of the situation, which many provisions have been unable to fully meet the comprehensive strictly administering the practice n

18、eeds. One is Ji law, more than half of the provisions and criminal law and other countries laws and regulations Repetition; two is the political discipline regulations is not prominent, not specific, for violation of the party constitution, damage the authority of Party Constitution of misconduct la

19、ck necessary and serious responsibility to pursue; third is the main discipline for the leading cadres, does not cover all Party members. Based on the above situation, need to and the two is likely to be more relevant regulations first amendment. By revising, really put the authority of Party discip

20、line, the seriousness in the party tree and call up the majority of Party members and cadres of the party constitution of party compasses party consciousness. (II) two party regulations revision process the Central Committee of the Communist Party of China attaches great importance to two regulation

21、s revision . Xi Jinping, general books recorded in the Fifth Plenary Session of the eighth session of the Central Commission for Discipline Inspection, on the revised regulations made clear instructions. According to the central deployment, the Central Commission for Discipline Inspection from 2014

22、under six months begin study two regulations revision. The Standing Committee of the Central Commission for Discipline Inspection 4 review revised. Comrade Wang Qishan 14 times held a special meeting to study two regulations revision, amendment clarifies the direction, major issues of principle, pat

23、h and target, respectively held a forum will listen to part of the province (area) secretary of the Party committee, Secretary of the Discipline Inspection Commission, part of the central ministries and state organs Department The first party committee is mainly responsible for people, views of expe

24、rts and scholars and grassroots party organizations and Party members. Approved by the Central Committee of the Communist Party of China, on 7 September 2015, the general office of the Central Committee of the Party issued a notice to solicit the provinces (autonomous regions, municipalities) Party,

25、 the central ministries and commissions, state ministries and commissions of the Party (party), the General Political Department of the military, every 3 people organization of Party of two regulations revision opinion. Central Commission for Discipline Inspection of extensive solicitation of opinio

26、ns, careful study, attracting, formed a revised sent reviewers. In October 8 and October 12, Central Committee Political Bureau Standing Committee and the Political Bureau of the Central Committee After consideration of the two regulations revised draft. On October 18, the Central Committee of the C

27、ommunist Party of China formally issued two regulations. Can say, two laws amendment concentrated the wisdom of the whole party, embodies the party. Second, and revision of the basic principles of two party regulations revision work and implement the partys eighteen, ten eight plenary, the spirit of

28、 the Fourth Plenary Session of the Eleventh Central Committee and General Secretary Xi Jinping important instructions on the revised and , highlighting the ruling party characteristics, serious discipline, the discipline quite in front of the law, based on the current, a long-term, advance as a whol

29、e, with Bu Xiuding independent and . Main principle is: first, adhere to the party constitution to follow. The constitution about discipline and self-discipline required specific, awaken the party constitution of party compasses party consciousness, maintaining the authority of the constitution. Gen

30、eral Secretary Xi Jinping pointed out that no rules, no side round. Party constitution is the fundamental law, the party must follow the general rules. In early 2015 held the eighth session of the Central Commission for Discipline Inspection Fifth Plenary Session of the 16th Central Committee, Xi Ji

31、nping again pointed out that constitution is the party must follow the general rules, but also the general rules. the revision of the and is Method in adhere to the regulations established for the purpose of combining rule of virtue is to adhere to the party constitution as a fundamental to follow,

32、the constitution authority set up, wake up the party constitution and party rules the sense of discipline, the party constitution about discipline and self-discipline specific requirements. 4 second is to adhere to in accordance with the regulations governing the party and the party. The Party of ru

33、le of virtue de, mainly refers to the partys ideals and beliefs, excellent traditional style. The revised the closely linked to the self-discipline, insisting on the positive initiative, for all members, highlight the vital few, emphasized self-discipline, focusing on the morality, and the majority

34、of Party members and the ideological and moral standards. The revised Ji method separately, Ji, Ji Yan to Method, as a negative list, emphasizing the heteronomy, focusing on vertical gauge. Is this one high and one low, a positive reaction, the strict party discipline and practice results transforma

35、tion for the integration of the whole party to observe moral and discipline requirements, for the majority of Party members and cadres provides benchmarking and ruler. Third, insist on to. In view of the problems existing in the party at the present stage, the main problems of Party members and cadr

36、es in the aspect of self-discipline and abide by the discipline to make clearly defined, especially the partys eighteen years strict political discipline and political rules, organization and discipline and to implement the central eight provisions of the spirit against the four winds and other requ

37、irements into Disciplinary provisions. Not one pace reachs the designated position, focusing on in line with reality, pragmatic and effective. After the revision of major changes, major changes in the and modified and needs to grasp several key problems (a) adhere to according to regulations governi

38、ng the party and party with morals in combination, for at the present stage, the leadership of the party members and cadres and Party members in existing main problems of self-discipline, put forward principles, requirements and specifications, showing Communists noble moral pursuit, reflected at al

39、l times and in all over the world ethics from high from low 5 common requirements. One is closely linked to the self-discipline, removal and no direct relation to the provisions of . the second is adhere to a positive advocate, eight prohibition 52 are not allowed to about the content of the negativ

40、e list moved into synchronization amendment . Three is for all the party members, will apply object from the leadership of the party members and cadres to expand to all Party members, fully embodies the comprehensive strictly required. The fourth is prominent key minority, seize the leadership of th

41、e party members and cadres is the key, and put forward higher requirements than the ordinary Party members. Five is to simplify, and strive to achieve concise, easy to understand, easy to remember. The revised is the ruling Party since the first insists on a positive advocate forAll Party members an

42、d the self-discipline norms, moral declaration issued to all members of the party and the National Peoples solemn commitment. criterion of a clean and honest administration consists of 4 parts, 18, more than 3600 words. After the revision of the , a total of eight, 281 words, including lead, specifi

43、cation and Party member cadre clean fingered self-discipline norms, etc. Part 3 members low-cost clean and self-discipline, the main contents can be summarized as four must eight code. Lead part, reiterated on ideal and faith, fundamental purpose, the fine traditions and work style, noble sentiments

44、, such as four must the principle of requirements, strong tone of self-discipline, The higher request for 6 and supervised tenet, the foothold in permanent Bao the partys advanced nature and purity, to reflect the revised standards requirements. Members of self-discipline norms around the party memb

45、ers how to correctly treat and deal with the public and private, cheap and rot thrifty and extravagance bitter music, put forward the four norms. Party leader cadre clean fingered self-discipline norms for the leadership of the party members and cadres of the vital few, around the clean politics, from civil servant of the color, the exercise of power, moral integrity, a good family tradition