o永通浆砌石护坡施工方案secret959588808.doc

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1、arrangements for the cause of socialism with Chinese characteristics, and improve the clarity of the strategic position of ecological civilization construction, to mobilize the whole party and people of all ethnic groups to promote the Socialist cause with Chinese characteristics. (E) enrich and per

2、fect the partys construction overall requirements of strengthening and improving party building, the party became the Socialist cause with Chinese characteristicsStrong core of leadership of the party and the new national cause from victory to victory the fundamental guarantee. Under the new situati

3、on, ruling party faces test, the reform and opening up and developing the market economy test, the external environment is a long-term, complex, serious, spirit slothful danger danger, insufficient capacity, divorced from the masses risk, passive corruption risks more sharply in front of the party.

4、Constantly improving the partys leading and ruling level and improve the ability to resist corruption and risk, is a consolidation of the partys ruling status, achieving the Mission of power must resolve a major issue. Outline of new Constitution in part on strengthening and improving party building

5、 put forward a series of new demands, stressed the need to strengthen the partys governing capacity-building, the construction of the advanced nature and purity, promoting the partys ideological building, organizational building, a building style, anti-corruption, institutional building and improvin

6、g party construction more scientific level, learning, service and innovation of Marxism party in power. Basic requirements of party building, emphasizing the whole party with Deng Xiaoping theory and the three represents important thought and scientific view of development and the basic line of the

7、party unity, unified action further emphasizes the pragmatic, emancipate the mind, and seeking truth from facts, keep pace with the tied for second as the partys construction of the basic requirements; increased wrote respect for party members, strengthen the supervision of major leading cadres. New

8、 Constitution on party of construction General requirements full of these new content, concentrated reflected has strengthening party of ruling capacity construction, and advanced and purity construction this article mainline, reflect has party of 17 big yilai party of construction made of major the

9、ory innovation results and important practice experience, reflected has we party on Marx doctrine ruling party construction law awareness of deepening, conducive to further strengthening and improved party of construction, should party faced of test and risk, effective improve party of ruling capaci

10、ty, keep and Development Party of advanced, and purity, With the spirit of reform and innovation to promote the new great project of party building, continuously enhance the creativity, rallying power and combat effectiveness. (F) on the absorption of some of the provisions have been amended as appr

11、opriate summarizing successful experience in recent years, party building, and links up with a part master changes南充市顺庆区潆华工业园永通地产项目小区护坡浆砌石护坡施工方案编制: 审核: 审定: 一, 工程概况;山体高陡边坡,由于爆破开采、地质构造、卸荷作用的影响。坡体按间距2米设置反虑包并埋设50PVC排水管。二, 方案编制依据岩土工程勘察规范(GB50021-2001)建筑地基基础设计规范(GB5007-2002)锚杆喷射混凝土支护技术规范(GBJ86-85)建筑边坡工程技术

12、规范(GB50330-2002)岩土工程勘察设计与施工(地质出版社)三, 工艺流程根据实际情况,按先护脚、后护坡、封顶的原则施工。本工程护坡分为两个施工段,每一施工段按以下流程施工:边坡土方清理基座施工砌石(埋设排水管)勾缝表面清理伸缩缝填嵌。四、主要分项工程施工方法4.1基土清理基面清理范围包括坡面及阶面,顶部其边界应在设计基面边线外30cm50cm。避免对已清理的基土造成人为破坏,堤基表层不合格土、杂物等必须清除,堤基范围内的坑、槽、沟等,应按堤身填筑要求进行回填处理。基面清理平整后,应及时报验。基面验收后应抓紧施工,若不能立即施工时,应做好基面保护,复工前应再检验,必要时须重新清理。4.

13、2 基土碾压应该护坡放坡度为75度,无法采用平面碾压设备进行施工,拟采用平面振捣设备进行表面振捣。发现局部“弹簧土” 、层间光面、层间中空、松土层或剪切破坏等质量问题时,应及时进行处理,并经检验合格后,方准铺填新土。4.3基座施工基槽开挖截面为36002500,地基承载力检验后装模并报验,浇筑C15混凝土,养生,冬季施工混凝土出机温度不得小于5度,为防冻害,应采取保温措施。基座施工按水工混凝土施工规范施工和进行质量控制。混凝土在搅拌站搅拌后用溜槽送至施工面。采用插入式振捣设备进行振捣。4.4砌石施工4.4.1原材料1) 砌石体的石料均现场验收,砌石材质应坚实新鲜,无风化剥落层或裂纹。石材表面无

14、污垢,水锈等杂质,用于表面的石材,应色泽均匀。石料密度应大于25kN/m3,抗压强度应大于60MPa。 石料外形规格,毛石应呈块状,最小重量不应小于25kg。规格小于要求的毛石,可以用于塞缝,但其用量不得超过该处砌体重量的10%。料石应棱角分明,各面平整,其长度应大于30cm,最小边厚度应大于20cm,料石外露面应修凿加工,砌面高差应小于5mm。2) 砂:砂料现场验收。质量要求料径为0.155mm,细度模数2.53.0,砌筑毛石砂浆的砂,其最大粒径不大于5mm,砌砌料石砂浆的砂,最大粒径不大于2.5mm。3) 水泥和水:水泥品种和强度等级符合规定,到货的水泥应按品种、强度等级、出厂日期分别堆存

15、,受潮结块的水泥,禁止使用。用水标准为适宜饮用的水均可使用,不应影响混凝土、砂浆强度的增长,水的pH 值不熔物,可熔物,氯化物等含量符合规范要求。4) 砂浆1) 砂浆的用量必须满足施工图纸规定的强度和施工和易性要求,用量必须通过试验确定。施工中需要改变胶凝材料的用量时,应重新试验。2) 拌制砂浆,应严格按照试验确定的配料单进行配料,配料的称量允许误差应符合下列规定:水泥为2%,砂为3%,外加剂为1%。3) 拌合时间:机械拌合不少于23min。4) 胶凝材料应随拌随用,胶凝材料的允许间歇时间应通过试验确定或参照下表选定。在运输或储存中发生离析或泌水时,砌筑前应重新拌合,已初凝的砂浆不得使用。5)

16、当冬期日平均气温低于35时,不宜进行砌筑,当气温不低于0而进行砌筑时,水泥砂浆强度等级适当提高,并保持熟料的砌筑温度不低于5,为防冻害,应采取保温措施。4.4.2 浆砌石砌筑(1) 一般要求浆砌石砌筑应符合下列要求:1)砌筑前,应在砌体外将石料上的泥垢冲洗干净,砌筑时保持砌石表面湿润;2)应采用坐浆法分层砌筑,铺浆厚宜3cm5cm,随铺浆随砌石,砌缝需用砂浆填充饱满,不得无浆直按贴靠,砌缝内砂浆应采用扁铁插捣密实;严禁先堆砌石块再用砂浆灌缝;3)上下层砌石应错缝砌筑;砌体外露面应平整美观,外露面上的砌缝应预留约4cm深的空隙,以备勾缝处理;水平缝宽应不大于2.5cm,竖缝宽应不大于4cm;4)

17、砌筑因故停顿,砂浆已超过初凝时间,应待砂浆强度达到2.5MPa后才可继续施工;在继续砌筑前,应将原砌体表面的浮渣清除;砌筑时应避免振动下层砌体;5)勾缝前必须清缝,用水冲净并保持缝糟内湿润,砂浆应分次向缝内填塞密实;勾缝砂浆标号应高于砌体砂浆;应按实有砌缝勾平缝,严禁勾假缝、凸缝;砌筑完毕后应保持砌体表面湿润做好养护;6)砂浆配合比、工作性能等,应按设计标号通过试验确定,施工中应在砌筑现场随机制取试件7) 砌石体应采用铺浆法砌筑,水泥砂浆沉入度应为46cm,当气温较高时,应适当增大沉入度。8) 在铺砌灰浆前,石料应洒水湿润,使其表面充分吸收,但不得残留积水。砌筑时不得采用外面侧立石块,中间填芯

18、的砌筑方法。砂浆应饱满,石块间较大的空隙应先填塞砂浆,后用碎石或片石嵌实,不得先摆碎石后填砂浆或干填碎石块的施工方法,石块间不应相互接触。9) 当最低气温在05时,砌筑作业应注意表面覆盖保护,当最低气温在0或最高气温超过30时,应停止砌筑。无防雨棚的仓面,遇大雨应立即停止施工,妥善保护表面,雨后应先排除积水,并及时处理受雨冲刷部位。(2) 操作要求1) 铺浆(座浆): 采用水泥砂浆作为胶结材料,铺浆厚度为设计厚度的1.5 倍,使石料安装后有一定的下沉余地,有利于灰缝座实。逐块座浆,逐块安砌,在操作时认真调整,务使座浆密实,以免形成空洞。对于毛石砌体,座浆厚度约为8cm 左右,以盖住凹凸不平的层

19、面为度。2) 摆放石料:在已座浆的砌筑面上,摆放洗净湿润(或饱和面干)的石料,并用铁锤击石面,使座浆开始溢出为度。石料之间的砌缝宽度应严格控制,采用水泥砂浆砌筑,一般为2-4cm。3) 竖缝灌浆:石料摆放就位后,及时进行竖缝灌浆,并振(插)捣密实。振实后缝面略有下沉,可待上层平缝铺浆时一并填满。4) 振捣:水泥砂浆砌缝宽度较小,采用人工捣插方法,常用的捣插工具有钢筋捣插捧,或竹片捣插捧,或特制捣插钢板。5) 二次砌筑时间:每一单位砌面铺砌完成2436h 后(视气温、水泥种类,强度等级不同而定),即可进行清理冲洗,准备上一层的铺筑。(3)砌筑质量应达到以下要求:1)平整:同一层面应大致砌平,相邻

20、砌石高差应小于2030mm。2)稳定:石块安置必须自身稳定,大面朝下,适当摇动或敲击,使其平稳。3)密实:严禁石块直接接触,座浆及竖缝砂浆填塞应饱满密实,铺浆均匀,竖缝填塞砂浆后应插捣至表面泛浆为止。4)错缝:同一砌筑层内,相邻石块应错缝砌筑,不得存在顺流向通缝,上下相邻砌筑的石块,也应错缝搭接,避免竖向通缝,必要时,可每隔一定距离。(4)养护砌体外露面,在砌筑后1218h 之间应及时养护,经常保持外露面的湿润,水泥砂浆砌体的养护时间,超过14d。冬期水泥的水化反应较慢,初凝时间延长,砌体一般不宜洒水养护,而采取覆盖麻袋、草袋、草帘、塑料膜、锅炉加温的保温防陈措施。4.4.3 砌石工程质量通病

21、与预防措施(1) 浆砌石不密实1) 现象:已砌筑部位有狗洞或缝隙,拆开检查可见砂浆不饱满。2) 原因:a、砂浆填筑不饱满;b、灰缝宽度不够;c、没有分层卧砌。3) 预防措施:(a)采用铺浆法施工,两块石头之间填浆饱满;(b)分层卧砌,内外搭接;(c)每片砌筑作业区安排专职质检员旁站检查,包质量包进度,负责到底。做好现场记录,出现问题,追究质检员的责任。4.4.4 砌石质量检查1) 砌石的砌体强度必须符合施工图纸的要求。2) 砌体密度和空隙率检查,在坝高1/3 以下每砌筑510m 高至少挖坑一组,坝高1/3 以上的砌体,试坑数量由监理人与承包人共同协商确定,所测的密度和空隙率必须达到施工要求。3

22、) 砌缝应密实,无架空,漏浆现象,有抗渗要求的部位进行压水试验,检测单位吸水率。4) 砌体表面砌缝宽度满足规定要求。4.5水泥砂浆勾缝1) 勾缝砂浆应采用细砂和较小的水灰比,水灰比控制在1:11:2 之间。2) 防渗用砂浆采用P42.5 以上普通硅酸盐水泥。3) 清缝应在砌筑24h 后进行,缝宽不小于砌缝宽度,缝深不小于缝宽的2 倍,勾缝前必须将槽缝冲洗干净,不得残留灰渣和积水,并保持缝面湿润。4) 勾缝砂浆必须单独拌制,严禁与砌体砂浆混用。5) 当勾缝完成和砂浆终凝后,砌体表面应刷洗干净,至少用浸湿物覆盖保持21d,在养护期间,经常洒水,使砌体保持湿润,避免碰撞和振动。4.6反滤、排水工程施

23、工1)铺反滤层前,应将基面用挖除法整平,对个别低洼部分,应采用与基面相同土料或反滤层第一层滤料填平。2)反滤层铺筑应符合下列要求:(1)铺筑前应做好场地排水、设好样桩、备足反滤料;(2)不同粒径组的反滤料层厚必须符合设计要求;(3)应由底部向上按设计结构层要求逐层铺设,并保证层次清楚,互不混杂,不得从高处顺坡倾倒。3)分段铺筑时,应使接缝层次清楚,不得发生层间错位、缺断、混杂等现象。4)已铺筑反滤层的工段,应及时铺筑上层砌石,严禁踩踏。5)下雪天应停止铺筑,雪后复工时,应严防冻土、冰块和积雪混入料内。六、质量控制与验收6.1 质量控制1)检查浆砌石体的施工操作和质量,是否符合有关规范的规定;2

24、)检查变形缝施工和止水结构制作,是否符合设计要求;3)水泥砂浆试件强度评定,应符合SL3292水闸施工规范;3)单元工程划分,浆砌石每50m100m堤长划分为一个单元;4)砌石外观质量合格标准,按下表规定检测。检查项目允许偏差(mm)或规定要求检查频率检查方法堤轴线偏差40每20延米测不少于2点用经纬仪测墙顶高程干砌石墙(堤)0+50每20延米测不少于2点用水准仪测浆砌石墙(堤)0+40混凝土墙(堤)0+30墙面垂直 度干砌石墙(堤)0.5%每20延米测不少于2点用吊垂线和皮尺量浆砌石墙(堤)0.5%混凝土墙(堤)0.5%墙顶厚度各类砌筑墙(堤)-10+20每20延米测不少于2处用钢卷尺量表面

25、平整度干砌石墙(堤)50每20延米测不少于2处用2m靠尺和钢卷尺量浆砌石墙(堤)25混凝土墙(堤)10注:质量可疑处必测。6.2 验收工程验收可划分为分部工程验收和竣工验收两个阶段。验收组或验收委员会的组成按浆砌石的要求进行。1)分部工程完成后应及时进行验收。隐蔽工程验收可分段进行,完工一段验收一段,未经验收,施工单位不得进行下一道工序施工。2)分部工程验收的图纸、资料和成果应按竣工验收的标准制备。3)工程完工后,提交经工地技术负责人签署的下列文件和资料:(1)竣工图纸;(2)施工中有关设计变更的说明和记录;(3)施工单位的试验、测量原始资料和成果及主要筑堤材料的质量保证书;(4)质量事故记录

26、、分析资料及处理结果;(5)单元工程质量评定表;隐蔽工程检查记录、照片或摄像资料;(6)工程质量自检报告;(7)施工总结报告和清单;(8)施工大事记。4)竣工验收合格后,将所有资料整理成册,移交工程管理单位,并抄报有关部门备查。new Constitution provisions on part of the party, the partys grass-roots organizations, three cadres of the party made some changes. 1, put forward new requirements for party members and

27、 cadres of the party summary and embodies the partys 17 largest party since the construction of the new experiences, and links up with a part master changes, new Constitution for party members, party officials and cadres made a number of new requirements. Article modifies the first sentence of the f

28、irst to seriously study MarxismLeninism, Mao Zedong thought, Deng Xiaoping theory and the important thought of the three represents and the scientific Outlook on development. Such changes were made, to guide the broad masses of party members and cadres to enhance learning and implementing the scient

29、ific concept of development of consciousness and firmness. 33rd wrote cadre increased oversight of content, emphasis on selecting cadres to adhere to in the first paragraph both ability and political integrity, to Germany for the first principle, adhere to all over the world, merit; wrote the party

30、attaches great importance to increase supervision of cadres in the second paragraph of content. Enrich the content of this area, helps to establish the correct employment-oriented, adhere to fair employment style and improve personnel selection public confidence, strengthening cadre supervision, and

31、 promote the healthy growth of cadres, building a contingent of cadres with high quality. Article 34th fifth write increases the partys leading cadres at all levels must have the basic content, stressed the partys leading cadres at all levels should adhere to the principle, stressing party spirit, t

32、o conduct, for example. Enrich the content of this area, conducive to the promotion of the whole party, especially leading cadres at all levels of the Party insisted on the principle of party spirit, strengthening moral cultivation, better to play an exemplary role. 2, the new Constitution of the pa

33、rtys grass-roots organizations put forward new requirements add a 31st article to write a positive and good content. In recent years, according to the central deployment, party organizations and party members further creating advanced grass-roots party organizations, striving to be excellent Communi

34、st activities, significant achievements were made. Further good activities, has been strengthened under the new situation of grass-roots party building and party-building a regular work was strengthened under the new situation of the partys advanced nature and purity of the strong hand. Zeng wrote t

35、he content, to promote a good routine of long-term, leading the partys grass-roots organizations into full play to promote development, the role of serving the masses, unite the people and promote harmony, fighting Fort into full play; inspire the advance of the broad masses of party members and enhance the glory and responsibility, internal motivation, give full play to the exemplary role. Second, 31st modifies the first sentence of the article to organize party members to seriously study Marxism, Leninism, Mao Zedong thought, Deng

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