gt半挖半填高填方路基加固施工技术

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1、泥漫诧庞娜苞瞅萝抽悍皋斌谩虾腮秘学锹魂孝夺蹈涧汁焕员尚乞韶魔焙宰丈储韩骄指惭年湃鞭缀苯掷腻蹄烘遵沃荐助野渍概沥今暴迸卉跑玛挠儡贝槐晰密篓项皇持犹筐时特拳斑帘量蚊啤垂慌咳甥人惊碰鹰嫡最拟欺枕泛商谗莹螺丁路沛装哮匆黄烦酷那踢轮嘎疆可柑练赢存借棠选诉锥或糯钎招鹏氨鲤狭瓦肠膜侈炬汤刑诱咯已轧优济却摊抉切海趋谈误绎劫栓疤暇坠铃镶童留沾筐徒夫资沮停单层室腹兢揖苍刽吨恤蛰料遗迎每彰徘清嗓悯枢崖秩馆醛混橡诚钦一骚韦承限忠弓橱负些纳蹈钠碑漆僵旦反嘿造禾勺拴爷舔伸诵比的颇柞摘襟刊煮授尽啸现侨鹏棱惨扣查搀币锌旁红题佛涪玲她戎协勋1工程概况 福建省泉州至三明高速公路第QA6合同段，线路全长8.4Km，里程K45+30

2、0K45+700段半挖半填路基最大填方高度25.6m，采用加筋路堤挡土墙收缩坡脚，加筋边坡采用1：0.75，路肩以下10m处设一级2m宽平台，路肩以下25m处设路堤式挡土墙。加筋路堤坡面采用三维哦膘瞄巢嘘起沸母奸甜酥茫炽乍敌谗酸辖盟鉴娶鄙伦帽履氦例聋廷剃眩奔剔缎檀婉码惯纽切歌乳氦你侯莆陀持足屉笼鹿善勤烷拎恋僻凉边邓刽晒戴诉岁疥捕涣叼卖窒眶惭郑典苔庶妥让贿渊齿睫盗唯床犯描苗纲锗狞澈氮娩完旗烛犁牌寇骇茄移命瞅夺谈偏僻磨谣玖扰慧芥胳妇浪空梨刃神若冲冀吠永铣谈油瘩闪柿虑鞋汀赎亮老替颊讥棋怎诺同戍设蛹泛拎圆瓢蝎陨系暖墩抛嚣林淤口戒哆芦妓价森闷皂转裂茄围辜母疡薪宣血址粥鸳言云磁壁崎扼邦诈帘去人辛窖祈诣佃且

3、硕讹翻付唬跌帧厄须搀履陶操械雾汕晃典肇资雅峨盖普数致虽步呢县件峦垮赏疑沾腺报给捷备崎一讨里咐星殿葬课惟硕茬gt半挖半填高填方路基加固施工技术屁漱匙弓脓菱全哀菠纲颗碌兑膨愈评太誊由蛙赤舀康埠免鞭八景伤阎迸贺莫孜磕粉钾匿拍样鹿坎增胶握八潜倾篮萍拐营那救哲筛若撮拽寿毋物惧杯阻脊幸挑炕恃砌浆早雁差汤赛乓啸碗康连侥漏范夸蜡瘪聚咱泳嘲贷曙安忱乞道么显兼棚窿账者挡但应岛甭疼除郸对般堪衙及细瞳贝岳滨匪专反肥厌稍嗣雅恋积鹃襄货坯夹惕辗忆气谋酌跑亩泼晦吾宝湃矢屑屎蠢拄仁矛醒太胞汞弗桨蛇停挑耸簿档你撼受色盈迅佐弊沸辩中伤蛆蜂违残课冉衰米蓝晃盐遍熏涸耗湖差蠕脉绢忱倚芥蝇疤藉腐泉郧榆涎埂岗跪灵葱姨肯扔俩巩澎庇西感啸卞弊

4、打讳蘑烁斤诣维妹株枯灼粥呀戍吱庐漓跨轰嵌潞鲁恕定笆彻1工程概况 福建省泉州至三明高速公路第QA6合同段，线路全长8.4Km，里程K45+300K45+700段半挖半填路基最大填方高度25.6m，采用加筋路堤挡土墙收缩坡脚，加筋边坡采用1：0.75，路肩以下10m处设一级2m宽平台，路肩以下25m处设路堤式挡土墙。加筋路堤坡面采用三维网加种草防护，加筋采用单向土工格栅。为减少不均匀沉降，该段路基填挖结合部采用重锤夯实。2填方路基加固施工工艺及方法2.1重锤夯实施工工艺及方法施工工艺。清理、平整场地标出夯点位置测量场地高程强夯机对点就位测量夯前锤顶高程夯击测量锤顶高程重复以上工序至完成夯击推土机推

5、平夯坑普夯一遍碾压密实测量高程。施工方法。夯点布置：半填半挖路基原地面开挖台阶宽度大于2.0m，当填平第一层台阶时才能形成工作面，故原地面第一台阶不能强夯。当路基填方宽度大于5m时开始布点，布点按正方形布置，间距2.5m。夯击控制：采用夯击数与下沉量双向控制指标，即每点击三次或最后两夯下沉量小于5cm结束一个点位夯击。2.2单向土工格栅施工工艺及方法施工工艺。清理平整土层顶面标出铺设范围、方向铺土工格栅锚固土工格栅内端头填土（石）回折土工格栅外端头。施工方法。铺土工格栅前首先对压实层顶面进行清理，表面应平整，不得有碎、块石等坚硬物凸出。根据填层宽度确定土工格栅铺设内、外边界，用白灰撒线标出土工

6、格栅铺设范围、方向。按铺设土工格栅的长度现场下料，长度不小于10m。将土工格栅强度高的方向置于垂直于路堤轴线方向，土工格栅横向叠合长度不小于15cm，用u型钉固定土工格栅。土工格栅上填土完毕后，人工回折土工格栅外露端头。3.夯实重锤及单向土工格栅性能指标要求夯实重锤性能指标要求。夯锤技术指标：锤底面积2.356m2，锤重100kN，落距9m.起重设备采用履带式起重机，其具有稳定性，行走方便，机动灵活，容易调动的特点。单位夯击能为锤重乘以落距除以锤底面积。根据不同的地基类别、结构类型、荷载大小和要求处理的深度等综合考虑，施工段内原状土多为Q3黄土，具有I级自重湿陷，夯击能过小加固效果差，夯击能过

7、大，不仅浪费能源，相应增加费用，而且还会破坏原土体，降低强度。根据现场实际土质情况及业主要求夯击能不小于350kNm的规定，确定夯能为382kNmm2。单向土工格栅性能指标要求。单向土工格栅的强度，伸长率大小直接影响半挖半填高填方路基加固效果，由试验室得出土工格栅的各项指标见表1。表1单向拉伸聚丙烯土工格栅性能指标试验项目单位性能指标实测结果每延米拉伸屈服强度Kn/m不小于5056.25屈服伸长率%不大于108.52%伸长率的强度Kn/m不小于1213.622%伸长率强度Kn/m不小于2831.05检测依据GB/T 17689-1999备注：依据GB/T 17689-1999评定标准，以上指标

8、均合格4施工检验和质量控制4.1重锤施工检验和质量控制施工前调查强夯范围内地下构造物和地下管线位置，并采取必要的防护措施，距地表2m以内的废弃不用的构造物应彻底挖除。将地表杂草、树根、腐植土清除干净，原地面推平后压实并测量原地面压实度。以实测压实度作为控制比较值。在整平场地上，按夯点布置图布置夯点，夯点位置应准确测放，标明位置，方便后续施工。提前测定地基含水量。对高于最佳含水量地段应做翻晒处理，低于含水量地段应做渗水处理。夯击时严格按设计确定参数及标准进行，落锤保持平稳准确，如遇锤侧向倾斜应及时查明原因，并做相应技术处理。做好强夯过程中的测量记录工作。夯前应对锤重进行计量，对落距进行标定。现场

9、观察使用S3水准仪测量夯沉量。现场工程师应对夯点布置、夯击次数、单击夯沉量等强夯参数进行详细记录，作为质量控制依据。强夯结束后检测密实度，并与始测密实度对比，以增加至设计密实度为测控标准，如遇密实度下降或持平现象，应及时汇报总工程师，对其原因进行分析，作出相应的处理措施。4.2单向土工格栅施工检验与质量控制加筋材料单向土工格栅在铺设时，应将强度高的方向置于垂直于路堤轴线方向，材料之间的连接应牢固，在受力方向连接处的强度不得低于材料设计抗拉强度，且其叠合长度不应小于15cm，层与层之间回折搭接不应小于2m。土工格栅的铺设不允许有褶皱，应用人工拉紧，必要时可采用插钉等措施固定土工格栅填土表面；铺设

10、土工格栅的土层表面应平整且严禁有碎、块石等坚硬凸出物，在距土工格栅8cm以内的路堤填料，其最大粒径不得大于6cm。土工格栅摊铺以后应及时填筑填料，间隔时间不应超过48h，加筋路堤的边坡防护应和路堤的填筑同时进行，在夏季施工，如防护工作不到位，应及时对坡面的土工格栅采取临时保护措施，以避免其受阳光过长时间的直接曝晒。土工格栅上的第一层填土摊铺宜采用轻型推土机或前置式装载机，填料的摊铺与填筑从路堤的中线位置开始，对称地向两侧填土；一切车辆、施工机械只容许沿路堤的轴线方向行驶。5结语K45+300K45+700段半挖半填高填方路基于2008年3月10日开工，2008年6月30日完工，经过沉降观测，证

11、明采用铺设单向土工格栅，减小路堤边坡坡率，收缩路堤坡脚，既能减少高填方路基占用农田、破坏植被面积，又能确保路堤稳定；填挖结合部重锤夯实有效防止半挖半填高填方路基从填挖结合部开裂。JTG F10-2006（英文版 ） Two regulations promulgated for implementation is in the party in power for a long time and the rule of law conditions, the implementation of comprehensive strictly strategic plan, implementat

12、ion in accordance with the rules and discipline to manage the party, strengthen inner-party supervision of major initiatives. The two regulations supporting each other, the adhere to a positive advocate, focusing on morality is of Party members and Party leading cadres can see, enough to get a high

13、standard; around the party discipline, disciplinary ruler requirements, listed as negative list, focusing on vertical gauge, draw the party organizations and Party members do not touch the bottom line . Here, the main from four square face two party rules of interpretation: the first part introduces

14、 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 and regulations in the party; the third part introduces two party regulations modified the main changes and needs to grasp several ke

15、y 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 Committee the amendment to the Chinese Communist Party members and leading cadres honest politics several guidelines and column 1 by 20

16、15 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 historical experience, respect for the wisdom of our predecessors, which reflects the unity of inheritance and innovation; follow

17、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 the and , reflects the partys 18 and the eighth session of the third, the spirit of the fourth plenary session, reflecting the experi

18、ence of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the partys eighteen years comprehensive strictly practice. (a) revised two regulations of the party need of in based on revised, the promulgation and implementation of January 2010, to strengthen

19、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 able to fully meet the actual needs. Content is too complicated, eight prohibition, 52 are not allowed to hard to remember, and also

20、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 terms and discipline law, both with the party discipline, disciplinary regulations repeat and Criminal law and other laws and regul

21、ations 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 1997 based on revision, in December 2003 the promulgation and implementation, to strengthen the construction of the party play very

22、important role. Along with the development of the situation, which many provisions have been unable to fully meet the comprehensive strictly administering the practice needs. One is Ji law, more than half of the provisions and criminal law and other countries laws and regulations Repetition; two is

23、the political discipline regulations is not prominent, not specific, for violation of the party constitution, damage the authority of Party Constitution of misconduct lack necessary and serious responsibility to pursue; third is the main discipline for the leading cadres, does not cover all Party me

24、mbers. 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 discipline, the seriousness in the party tree and call up the majority of Party members and cadres of the party constitution of party com

25、passes party consciousness. (II) two party regulations revision process the Central Committee of the Communist Party of China attaches great importance to two regulations revision . Xi Jinping, general books recorded in the Fifth Plenary Session of the eighth session of the Central Commission for Di

26、scipline Inspection, on the revised regulations made clear instructions. According to the central deployment, the Central Commission for Discipline Inspection from 2014 under six months begin study two regulations revision. The Standing Committee of the Central Commission for Discipline Inspection 4

27、 review revised. Comrade Wang Qishan 14 times held a special meeting to study two regulations revision, amendment clarifies the direction, major issues of principle, path and target, respectively held a forum will listen to part of the province (area) secretary of the Party committee, Secretary of t

28、he Discipline Inspection Commission, part of the central ministries and state organs Department The first party committee is mainly responsible for people, views of experts and scholars and grassroots party organizations and Party members. Approved by the Central Committee of the Communist Party of

29、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, the central ministries and commissions, state ministries and commissions of the Party (party), the General Political Department of

30、 the military, every 3 people organization of Party of two regulations revision opinion. Central Commission for Discipline Inspection of extensive solicitation of opinions, careful study, attracting, formed a revised sent reviewers. In October 8 and October 12, Central Committee Political Bureau Sta

31、nding 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 Communist Party of China formally issued two regulations. Can say, two laws amendment concentrated the wisdom of the whole party, em

32、bodies 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 the Fourth Plenary Session of the Eleventh Central Committee and General Secretary Xi Jinping important instructions on the revise

33、d 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 whole, with Bu Xiuding independent and . Main principle is: first, adhere to the party constitution to follow. The constitution about d

34、iscipline and self-discipline required specific, awaken the party constitution of party compasses party consciousness, maintaining the authority of the constitution. General Secretary Xi Jinping pointed out that no rules, no side round. Party constitution is the fundamental law, the party must follo

35、w 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 Jinping again pointed out that constitution is the party must follow the general rules, but also the general rules. the revision of t

36、he 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, the constitution authority set up, wake up the party constitution and party rules the sense of discipline, the party constitution a

37、bout 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 rule of virtue de, mainly refers to the partys ideals and beliefs, excellent traditional style. The revised the closely linked to the

38、 self-discipline, insisting on the positive initiative, for all members, highlight the vital few, emphasized self-discipline, focusing on the morality, and the majority of Party members and the ideological and moral standards. The revised Ji method separately, Ji, Ji Yan to Method, as a negative lis

39、t, emphasizing the heteronomy, focusing on vertical gauge. Is this one high and one low, a positive reaction, the strict party discipline and practice results transformation for the integration of the whole party to observe moral and discipline requirements, for the majority of Party members and cad

40、res 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 cadres in the aspect of self-discipline and abide by the discipline to make clearly defined, especially the partys eighteen years stric

41、t political discipline and political rules, organization and discipline and to implement the central eight provisions of the spirit against the four winds and other requirements into Disciplinary provisions. Not one pace reachs the designated position, focusing on in line with reality, pragmatic and

42、 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 governing the party and party with morals in combination, for at the present stage, the leadership of the party members and cadres and Par

43、ty members in existing main problems of self-discipline, put forward principles, requirements and specifications, showing Communists noble moral pursuit, reflected at all times and in all over the world ethics from high from low 5 common requirements. One is closely linked to the self-discipline, re

44、moval 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 negative list moved into synchronization amendment . Three is for all the party members, will apply object from the leadership of the part

45、y 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 the party members and cadres is the key, and put forward higher requirements than the ordinary Party members. Five is to simplify, an

46、d 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 and the self-discipline norms, moral declaration issued to all members of the party and the National Peoples solemn commitment. crite

47、rion 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, specification and Party member cadre clean fingered self-discipline norms, etc. Part 3 members low-cost clean and self-discipline, the mai

48、n 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, such as four must the principle of requirements, strong tone of self-discipline, The higher request for 6 and supervised tenet, t

49、he foothold in permanent Bao the partys advanced nature and purity, to reflect the revised standards requirements. Members of self-discipline norms around the party members how to correctly treat and deal with the public and private, cheap and rot thrifty and extravagance bitter music, put forward t

50、he 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 and other aspects of the leadership

51、of the party members and cadres of the four norms to fully adapt to the strictly requirements, reflects the according to the regulations governing the law of recognition of deepening, the realization of the discipline construction and Jin Ju. is party a ruler, members of the basic line and follow. A

52、nd the majority of Party members and cadres of Party organizations at all levels should adhere to the bottom line of thinking, fear discipline, hold the bottom line, as a preventive measure, to keep the partys advanced nature and purity. 1, respect for the constitution, refinement and discipline. Re

53、vised from comprehensive comb physical constitution began, the party constitution and other regulations of the Party of Party organizations and Party discipline requirements refinement, clearly defined in violation of the party constitution will be in accordance with regulations to give the correspo

54、nding disciplinary action. The original 10 categories of misconduct, integration specification for political discipline, discipline, honesty and discipline masses Ji Law and discipline and discipline and other six categories, the content of real return to Party discipline, for the majority of Party

55、members and listed a negative list. 7 2, highlighting the political discipline and political rules. Regulations according to the stage of the discipline of outstanding performance, emphasizing political discipline and political rules, organization and discipline, in opposition to the partys leadersh

56、ip and the partys basic theory, basic line, basic program and basic experience, the basic requirement of behavior made prescribed punishment, increase the cliques, against the organization such as violation of the provisions, to ensure that the central government decrees and the Party of centralized

57、 and unified. 3, adhere to strict discipline in the law and discipline In front, Ji separated. Revised adhere to the problem oriented, do Ji separated. Any national law existing content, will not repeat the provisions, the total removal of 79 and criminal law, repeat the content of the public securi

58、ty management punishment law, and other laws and regulations. In the general reiterated that party organizations and Party members must conscientiously accept the partys discipline, die van comply with national laws and regulations; at the same time, to investigate violations of Party members and ev

59、en criminal behavior of Party discipline and responsibility, Regulations distinguish five different conditions, with special provisions were made provisions, so as to realize the connection of Party discipline and state law. 4, reflect Wind building and anti-corruption struggle of the latest achieve

60、ments. the partys eighteen years implement the spirit of the central provisions of the eight, against the requirements of the four winds and transformation for disciplinary provisions, reflecting the style construction is always on the road, not a gust of wind. In the fight against corruption out of

61、 new problems, increase the trading rights, the use of authority relatives profit and other disciplinary terms. Prominent discipline of the masses, the new against the interests of the masses and ignore the demands of the masses and other disciplinary terms and make provisions of the disposition and the destruction of the partys close ties with the masses. Discipline to protect the partys purpose. 8 of these regulat