qm102承台、扩大基础施工作业指导书.doc

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1、 施工作业指导书编号:wggcbq102 承台和扩大基础施工编制: 复核: 批准: 中铁十四局集团武广铁路客运专线XXTJ标项目经理部二00六年三月十六日施工作业指导书1、目的对承台和扩大基础施工作业进行控制,使其结果满足设计和施工规范的要求。2、使用范围适用于承台和扩大基础施工工艺,使其处于受控状态。3、职责技术主管负责技术交底书的编制、发放,对工序的实施过程进行控制检查。根据施工进度,提报材料计划。测量班测量后提供有关测量资料。试验室负责原材料的检验,设计配合比、混凝土强度检查、监控指导混凝土施工。物资设备部负责按要求购进原材料(水泥、砂、碎石等);负责机械设备的配置,机械设备的采购、发放

2、,检查指导机械设备的使用、保养和维修工作。质检工程师负责对整套工序监督检查及抽查。项目队长负责组织施工,对工序过程实施监督检查,协调作业班组之间的关系。模板施工班负责扩大基础或承台开挖、模板工程、混凝土浇注工程施工,钢筋施工班负责钢筋加工、运输、吊装工程施工,混凝土的运输由搅拌站负责。4、技术标准客运专线铁路桥涵工程施工技术指南(TZ2122005)客运专线铁路桥涵工程施工质量验收暂行标准(铁建设2005160号)铁路混凝土工程施工质量验收补充标准(铁建设2005160号)5、资源配置5.1人员负责承台和扩大基础的施工作业人员必须是经过培训、工作熟练的工人,并且具有较高的质量意识。电工、混凝土

3、输送泵司机、罐车司机等特殊工种,必须是经过培训、考试合格,持证上岗。5.2设备 承台、扩大基础施工所需主要设备见下表:序号机械名称规格类型单位数量备注1挖掘机PC220台12装载机ZL50C台23自卸车斯太尔台44砼搅拌运输车8m3台2-35汽车吊25T台16变压器S9-315个17发电机GF120个18电焊机BX1-315台29对焊机DN-100台110钢筋切断机GQ40B台111钢筋弯曲机GW-40B台112拌合站HZS50E个15.3材料技术主管负责按施工进度要求提供月材料计划。物资设备部根据材料计划,组织进料。试验室接到材料室通知后立即组织取样试验工作,对无说明书和出厂合格证的产品则有

4、权拒绝试验,并上报项目部工程部。5.3.1 水泥选择水泥品种的原则如下:混凝土应优先选用硅酸盐水泥和普通硅酸盐水泥,当环境水对混凝土有侵蚀性时,应经试验选择其它水泥。水泥品质应符合现行的国家标准,固定厂家供应。运至工地的水泥,应有厂家产品试验报告,试验室必须进行复验,必要时还应进行化学分析,水泥品质的试验按现行的国家标准进行。5.3.2 骨料a、 骨料应根据优质经济,就地取材的原则进行选择,可选用天然骨料、人工骨料或两者互相补充。b、 骨料的堆存和运输应符合下列要求:(1) 堆存骨料的场地,应有良好的排水设施,严禁相互混杂。(2) 不同粒径骨料必须分别堆放,设置隔离设施,以防相互混杂。(3)

5、骨料堆放时,不宜堆成斜坡或锥体,以防产生分离。(4) 应避免泥土混入骨料和骨料的严重破碎。(5) 骨料的堆存应做好产品标识和检验试验状态标识。5.3.3 水a、 凡适用于饮用的水,均可以拌制和养护混凝土,未经处理的工业水,不得用以拌制和养护混凝土。b、 天然矿化水,如果化学成分符合表中的规定,可以用来拌制和养护混凝土。c、 对拌制和养护混凝土的水质有怀疑时,应及时进行水质检定。5.3.4 外加剂a、 外加剂的掺量由试验确定。b、 如需提高混凝土的早期强度,宜在混凝土中掺加早强剂。c、 外加剂必须与水混合,配制成一定浓度的溶液,搅拌均匀后使用,各种成分要计量准确。5.3.5钢筋钻孔桩用钢筋的品种

6、应符合下列现行国家标准的规定:低碳钢热轧圆盘条(GB701)钢筋混凝土用热轧光圆钢筋(GB13013)钢筋混凝土用热轧带肋钢筋(GB1499)6、工艺操作步骤6.1流程如图所示6.2施工工艺最上层扩大基础相当于桩基础的承台,以下均只提到承台,扩大基础施工和承台施工方法基本完全一致。6.2.1基坑开挖采用机械开挖配以人工修整的方案。开挖时基底留0cm人工开挖,减小对原状土的挠动。基坑严禁超挖,如有超挖,必须用级配碎石回填至设计基底标高并夯实。采用加大基坑开挖尺寸,四周设排水沟和集水坑潜水泵抽水的方案,防止基坑开挖之后地下水渗入造成基坑积水,排水沟深30cm,集水坑深50cm。不间断抽水,保持基底

7、无积水、无浮泥,满足承台施工的需要。基坑开挖,放坡坡度为1:0.5。施工时按照先下后上的顺序进行,例如武汉台一侧先进行2号墩承台的施工,2号墩承台完成以后再进行3号墩承台的施工,3号墩承台基坑开挖时,弃土应置于成型后基坑外侧米处堆放,不得放置在2号墩与3号墩之间,最后进行0号台承台的施工,在对0号台承台基坑开挖时,弃土应置于成型基坑右侧米以外处堆放,不得放置在0号台与1号墩之间。堆放不下时,做弃土外运至弃土场。1.凿除桩头砼(对于最下层扩大基础没有凿除桩头砼和桩基检测的内容,最上层扩大基础相当于桩基础的承台。)基坑开挖至设计底标高后,超挖20cm用凿出桩头的砼均匀撒布于基底,以利排水并提高基底

8、的地基承载力,将破坏的桩头锚固钢筋调直、补充完整。浇注封底砼前,对嵌入封底砼的桩头侧面进行凿毛和清洗处理,保证二者结合良好。2. 桩基检测凿除桩头砼以后即组织进行桩基检测,检测结果及时上报监理,并申请抽检。3.注意事项a)承台基坑开挖前准备好彩条布及其它相关防雨设施,并在基坑的外轮廓线50cm处筑好挡水埝;b)基坑开挖连续进行,人工找平至设计标高后立即组织下一道工序施工,防止基坑长期暴露和扰动;c)基坑开挖过程中经常检查基坑边坡稳定性和开挖深度。d) 基坑开挖专职安全员全过程旁站检查安全情况,杜绝隐患4.承台封底为便于承台立模,封底砼尺寸较设计每边增加30cm。因其厚度较小(20 cm),用2

9、0 cm宽组合钢模做为承台封底砼模板,封底砼数量较少,直接采用输送泵浇注混凝土。灌注时全断面自左向右一次成型,为保证封底砼密实性,在振动棒振捣后,其表面用平板振动器振捣初平。人工配以3米靠尺精平,用木抹二次收浆,等终凝后及时覆盖草袋并洒水养护。6.2.2钢筋施工首先对承台位置进行测量放样,用墨线弹出承台轮廓线,然后在其上标出纵横钢筋位置,一次绑扎成型。第一层钢筋网绑扎好以后,在钢筋网底部放置10cm10cm10cm砼垫块,将底部钢筋垫起,垫块呈梅花形放置,间距为1m一个。接着绑扎第二层钢筋网片,第二层绑扎好后,在第一层与第二层之间焊接(16钢筋)支撑钢筋,将一、二层钢筋网片撑起,焊接时按梅花形

10、布置,每80cm一根,保证第二层钢筋网片有足够的强度,在绑扎上层钢筋时可以满足施工人员行走不变形。要保证每层钢筋网片绑扎的顺直度、间距、保护层及同一截面焊接接头等项目确保合格,检验合格后即可绑扎架立筋。为了更好控制砼裂缝,承台砼施工时,增设防裂钢筋,防裂钢筋为承台侧面及顶面设置20cm20cm12螺纹钢筋网片,钢筋净保护层5cm,承台4个侧面净保护层厚度为5cm。墩身预留钢筋,在绑扎前定出墩身中心线,深入承台内部的钢筋焊接在承台钢筋上固定,承台与墩身接合处的钢筋用钢筋定好位,防止保护层不够的现象出现,露出承台的钢筋用钢管架固定。墩身预留钢筋时,同一截面长短交错布置,保证墩身接头在同一截面数量小

11、于35%,且接头间距不小于1.0m,钢筋预留长度要满足第一次浇筑墩身的要求,承台钢筋接长均采用闪光对焊。6.2.3模板施工承台施工采用大块定型钢模板,加固模板采用内拉外撑的方法。根据钢筋网布置情况,设2层拉筋,拉筋的水平间距每1.0米布置一道,拉筋引出模板外用螺栓加固。在拉筋外露处加垫方木。外部顶撑在模板1.5米高度内布置两道,梅花形设置间距1米。模板四周用钢管连接加固,用20cm15cm方木支顶于基坑壁,确保浇筑过程中模板结构整体稳定性。模板表面清除干净,均匀涂刷脱模剂,脱模剂采用色拉油,模板缝间采用橡胶条填塞,防止漏浆。 6.2.4承台砼浇注 承台一次性浇注施工。承台砼浇注方量较大,为保证

12、连续施工,在施工前进行严密的组织。施工中采用的主要机械为:一台砼输送泵,4台砼运输罐车。承台砼浇注前首先用高压水冲洗模板,再用空压机将模板内部的杂物吹净。为了保证墩身位置处砼的密实性和均匀性,采取如下浇注顺序:首先浇注承台墩身预埋钢筋位置处;然后浇注两侧,砼浇注时按30cm厚度分层浇注。浇注过程中配备条插入式振动棒,振捣时间控制在11s16s。振动棒与侧模保持不小于10cm间距,防止因其振动扰动模板。对施工人员进行详细技术交底和现场指导工作,对施工人员指定具体振捣范围,明确责任,互相监督,严防漏振、过振现象,严格控制分层厚度,视混凝土布料厚度及时移动泵管,严禁出现砼堆积现象。施工中将会出现不同

13、程度的泌水,及时将产生的泌水和浮浆清除,防止其影响砼的质量,在模板的两侧设置小孔洞,将产生的浮浆及时排出模板外后,再行堵塞,浇注过程中专职质检工程师全过程旁站。在拌和过程中严格控制拌和时间不小于1.5Min,确保砼均匀,砼灌车运输过程中应不停搅拌,确保砼均匀一致。砼浇注至设计标高后,人工配以3米靠尺精平,木抹二次收浆并做压光处理,墩身位置用木抹抹平即可,防止砼表面产生收缩裂缝,砼达到终凝后即用双层草袋和一层毛毡覆盖及时洒水养护,养护期不得少于28天。(1) 因砼浇注方量较大,施工前认真检查拌和设备、并进行调试,保证施工过程连续。(2) 对施工人员进行技术交底,熟悉施工工序,互相监督,防止出现漏

14、振、过振现象(3) 严格控制分层厚度及前后两层浇注距离,禁止有堆积现象。(4) 钢筋密集,在施工中严格控制砼的振捣质量,保证其密实性和均匀性。(5) 砼终凝后及时覆盖两层草袋养护,防止砼产生收缩裂缝。(6) 预留墩身钢筋定位精确, 提前预埋固定及调整墩身模板需要的缆风绳预埋件。6.3承台砼施工应严格注意以下事项:因承台截面尺寸较大,有可能导致混凝土内部温度较高,而产生温度裂缝。在承台竖直方向上布设两道散热管,并主要从混凝土养护、原材料质量控制、配合比选取(推迟温度峰值出现的时间,提高相应龄期抗拉强度)、严格控制拆模时间等方面来控制混凝土质量,以达到避免或减少温度裂缝的产生。(1) 尽量降低承台

15、混凝土受约束作用因承台混凝土在浇注完成后要受到封底混凝土及钻孔灌注桩桩头锚固筋约束的作用,在混凝土浇注初期其弹性模量低,有可能在底部产生收缩裂缝,为尽量减少承台混凝土受约束作用,在浇注封底混凝土完成后对表面进行压光处理。(2) 水泥的选用采用郴州金磊水泥有限公司生产的金磊牌P.O42.5普硅水泥,并掺入适量粉煤灰。(3) 掺入外加剂使用高效缓凝减水剂,严格控制掺量:每盘拌合用量按配合比提前称量好,搅拌时投入料斗搅拌均匀,保证减水剂的缓凝时间,液体缓凝剂在拌和站一定要搅拌均匀,确保缓凝剂加入量一致。严格控制混凝土搅拌时间:搅拌时间较以前适当延长,保证混凝土拌合均匀,外加剂能够完全反应,搅拌时间须

16、保证120秒。(4) 粗细骨料级配控制减少砂率:选用2.93.0,砂率降低为38%;采用合理的混合级配粗骨料:516mm细骨料占50%,1631.5mm骨料占50%。尽可能减少用水量和水泥用量,施工中严格控制粗细骨料的含泥量,提高混凝土的均匀性,增加抗裂能力。(5) 选择合理的浇筑时间建立专门网络气象站,可以了解每天、周、旬的气象资料,将承台施工避开阴雨、大风等恶劣天气。选择一天气温度较低的时间开始施工,降低了混凝土的入模温度。(6)降低入模温度降低入模温度是控制峰值的最有效措施,施工中对砂石料的温度采取遮阳棚覆盖,拌和采用井水,同时对输送泵泵管严格包裹洒水,以利降温。(7) 合理布置散热管

17、施工过程以便科学合理的通过温度应变片测量的数据进行分析处理。a)散热管的布置为降低混凝土内部温度,在承台内部设置两道散热管,在浇注完混凝土后对承台散热管通水散热,水流速度按设计图纸要求不小于15L/h。b)测温设备为准确测量并便于操作,采用温度应变片测量混凝土内部温度,因为承台平面为矩形,在平面布置温度应变片时考虑对称性,布置四分之一平面,并对温度应变片编号做记录(温度应变片具体位置见附图)。c)测温记录15天每2小时测温一次;614天每4小时测温一次;14天后视温度变化情况随时调整;记录填写数据,同时进行温度曲线测绘,分析温度变化情况;混凝土温度采集内容主要包括混凝土入模温度,每个温度应变片

18、处的混凝土内部温度,草袋内温度,草袋外温度(即外界气温),散热管进出水温度,按频率测量数据。温度曲线绘制每一测点内部温度随时间变化曲线;同一竖向截面上,温度沿高度变化曲线;同一高度(厚度)测点沿承台水平截面温度变化曲线;外界气温随时间变化曲线;数据处理所有温度测量数据的采集设专人负责,保证所测数据的准确性、真实性,根据所测数据分析混凝土内部温度变化情况,调整散热管进出水温度。d)通水散热在现场基坑顶和底各设一个水箱,在顶部水箱上焊接一排出水口与散热管进水口用塑料管相连,并设置阀门控制流量,散热管出水口用塑料管联至底部水箱,同时用泵将底部水箱的水抽至顶部水箱。自混凝土开始灌注时,测量混凝土入模温

19、度、当地气温,作为计算内部温升的基础。当浇注至第一层散热管位置处时,即对散热管通水。e) 水温调整若通过应变片实测混凝土内部温度与实测进水口温差大于20时,应调整水温:将水箱放置在基坑的边沿,高于承台的顶标高,通过势能转换为水流动的动力。经过测量,若水温比混凝土内部温度低的多,则要通过60KW/h电热器对水箱加热直至两者温差小于20后停止加热,并要提高流速,加快散热速度,通水不少于12天。混凝土浇注前对所有散热管作密实性试验,保证管道密封良好,保证管道接头焊接质量,强度符合要求,散热管选择50mm钢管。(7)混凝土的养护养护主要作用是起到保湿和保温的目的,保温的主要目的是减少混凝土表面的热扩散

20、,降低表面的温度梯度,防止产生表面裂缝;保湿的主要目的是防止混凝土表面出现收缩裂缝,混凝土浇注前侧面用两层草袋和一层毛毡覆盖,浇筑完后顶部采用同样方法覆盖。严格控制拆模时间拆模时间控制直接影响到混凝土表面是否产生收缩裂缝。根据测量的混凝土内部温度与测量的外界气温差值来确定拆模时间,若两者温差大于20则不能拆模,继续通水散热,直至气温与混凝土内部温度两者差值小于20时间才可以拆模。拆模后基础混凝土表面暴露时间防止过长,避免温度变化引起混凝土开裂。拆模后及时回填土,一天内须回填完毕7、质量标准承台的允许偏差和检验方法应符合表7.1的规定。表7.1 承台的允许偏差和检验方法序号项 目允许偏差(mm)

21、检验方法1尺寸30尺量长、宽、高各2点2顶面高程20测量5点3轴线偏位15测量纵横各2点4前后、左右边缘距设计中心线尺寸50尺量各边2处8、施工保证措施8.1质量保证措施1、开工前做好施工调查,认真复核设计文件、施工图纸;按要求精度完成复测和桩位测设;对可能设计到的新技术、新工艺、新设备认真研究吸收消化,并对有关人员进行岗前培训。2、根据本工程特点和质量目标要求,配备责任心强、工作经验丰富、技术熟练的工程技术和管理人员,并在施工期间保持相对稳定。选择质量意识强、专业化程度较高、作风过硬的专业施工队伍负责本工程的施工。机械设备按先进实用的原则配备。原材料严把采购、进场、检验、使用关,确保原材料质

22、量,确保工程质量。3、加强现场施工过程中的质量管理工作,严格按设计和规范控制每道工序,实行工序三检制、复核签认制,做到层层把关,层层检查,使各项工序始终处于受控状态。加强工地试验、检测工作,严格技术标准,消灭无检测的施工行为。加强关键工序、关键部位、关键阶段的测量检查复核,坚决杜绝因测量原因造成的工程质量事故。8.2安全保证措施1、所有吊装设备,钢丝绳定期检查。基坑边缘醒目位置树立安全标示牌,以警示施工和其他人员。各种装吊设备使用前,安排试运行,合格后方可进行装吊作业,装吊作业中严禁超载。2、模板采用大块钢模拼装,槽钢外加固无拉筋支撑技术,一次立模整体浇注,减少模板拼装和钢筋头外露现象。3、开

23、挖基坑应根据规定的基坑边坡开挖,分层开挖到符合承载力要求的设计高程为止。禁止采用局部开挖深孔,从底部向四周掏土的方法。4、基坑开挖需要爆破时由专业爆破施工进行。5、砌筑土方工基础时,应有脚手平台和运料走道,禁止从平台和边坡上往下滚石块。6、坑内电焊时,宜安排在人少时进行,并做好通风,防护工作。8.3文明环境保护措施1、严格按照地方政府和有关部门的项目建设要求,依法办理有关手续,并采取有效措施,最大限度地减缓对生态环境的影响和破坏。2、桥梁附近的施工营地或施工现场应尽量远离水体。若不得不布设在水体附近,产生的污水、粪便严禁排入水体,生活污水、粪便必须经化粪池处理后给当地农民还田。3、施工机械需严

24、格检查,防止漏油。禁止将污水、垃圾直接抛入水体,应收集后与大桥工地上的污染物。4、合理安排施工时间,防止噪声扰民。采取洒水、覆盖等措施,防止施工扬尘对附近敏感点的影响。5、明确环保和水保条款、责任,确保环境保护和水土保持工程建设质量,并定期向地方环保部门提交工程环境监理报告。6、施工现场的生活垃圾和工程废弃物集中堆放,经处理后,除部分用于农作物肥料外,其余均挖坑深埋并平整土地,恢复植被。(英文版 ) easily blame, to prevent the broken window effect. Supervise the leading cadres to play an exempla

25、ry role, take the lead in the strict implementation of the and , lead to safeguard the solemnity and authority of the party discipline, ensure that the party discipline and the laws and regulations for implementation in place. Throughout the discipline in the daily supervision and management, streng

26、then supervision and inspection, from the thorough investigation of violations of discipline behavior. Strengthen to key areas, key departments and key projects as well as the masses reflect the concentration of the units and departments for supervision. - strengthening supervision, discipline inspe

27、ction and supervision of cadres to set an example for compliance with the and is a man must be hexyl, blacksmith needs its own hardware. Discipline inspection organs as the executor of the party discipline, and supervisor of the defenders, for its supervision must be more strictly, discipline inspec

28、tion and supervision of cadres to firmly establish the awareness of Party Constitution, sense of discipline and rules consciousness, politics loyalty, sense obey. Action speak Ji Ordinance to set an example of the regulations of the rule of law, strengthen supervision and accept the supervision of t

29、he firmness and consciousness, do comply with and . To firmly establish the discipline must first be disciplined, the supervisor will be subject to the supervision of concept, and consciously safeguard and implement party compasses party, take the lead in practicing three strict real strict, so loya

30、l, clean, play. To be good at learning, the Constitution and the as morality, politics and brought to fruition; to implement , do not want to, dare not, not with disciplinary ruler to supervision; to discipline a ruler, often the control inspection, and consciously in the ideological red line to dra

31、w the row Ming Good accumulation is indeed the bottom line, so that the heart has fear, said to have quit, the line has ended. Attached: indifferent to heart, calmly to the table in our life, there are many unpredictable things will happen, some good, some bad things, we cannot control is powerless

32、to stop, but with time, you will find in life sometimes turns out to be not good, some bad things finally turned out to be a good thing, but then we muddy however did not know, this is the life teach us things. 1, life can be complex, can also be simple. Want simple life of precipitation, to have en

33、ough time to reflect, to make Become more perfect. Life is the most important thing is not to win, but the struggle; not to have conquered, but to have fought well. 2, the plain is the background of life. Live a plain life, give up on themselves is not a coward, but the wise answers; not disillusion

34、ed after the heart, such as ashes, but experience the storm after the enlightenment; not unrewarding perfunctorily, but calm attitude of life of unrestrained self-confidence. Plain living, there is no noise noisy, no earthly troubles, more did not fill in the discontent of desire, some just a calm,

35、a calm. 3, memory of heart will not good things to erase the, life is a When no movie, pain is a beginning, the struggle is a kind of process, death is a kind of ending. Give up this giving up is the helpless, do not give up the abandoned, do not give up this giving up is ignorance, do not give up s

36、hould not give up is persistent. 4, a thing figured is heaven, think impassability is hell. Since the living, to live better. Sometimes we because of too narrow-minded, too care around the chores and penny wise and pound foolish, not worth the candle. Some things to attract trouble and worry, comple

37、tely depends on how we look at and deal with it. Dont always take everything back to things, and dont get into a blind alley, dont want to face, dont be narrow-minded. Poke to care, is a kind of open-minded, a free and easy. 5, I am not afraid of others behind me a knife, I afraid to look back and s

38、ee stab me, is my intention to treat people; I am not afraid of the truth to tell the best friend, Im afraid he turned to it as a joke to tell dont 6, when we are in a positive frame of mind, you will find many good things; and when we are in a negative state of mind, you will find many depressed th

39、ings; life happy and worry, all is you of life attitude, optimistic, good luck; loss of sink, Eritrea company. When you are in adversity, may wish to change a point of view to think everything over to the good Think, because good mentality decided the fate of the! 7, people are tired, rest; heart ti

40、red, calm. Grow up, mature, this society read. Tired and sad, squat down, to their a hug. Because the world no one can sympathize with you, have mercy on you. You cry, tears is your own; you pain, no one can understand. Then you only tears to smile. 8, each people have youth,Each youth are a story,

41、the life of the world never gets easier, I want what, wish the world all know, as has been the same; now want anything, for fear that others know, or like to lose the same. 9, the heart move, everything in the world is followed by birth, Rangrang, important thing is often the most difficult to open

42、ones mouth, because words will reduce its importance; to let strangers people care about your life in the good things, the original is not easy 10, do not blame, do not laugh at who, also dont envy who. Like a person is a kind of feeling, not like a person is true. The truth is easy to explain, I fe

43、el Is unspeakable. The best travel life is that you in a strange place found a long lost touched. 11, happy life not in the bustling in, and in the peace of mind; no matter how many grievances, how uncomfortable, and ultimately to heal themselves or their own, others may got you to comfort, but neve

44、r know your heart is how wanjianchuanxin. 12, maam, like a movie, learn to appreciate, learn to be grateful, learn tolerance, and goodness, helping others. Instead of accusing the society, as into one; and an exception is better to give than to what 13, dont envy him A sum of, dont lose your life an

45、d the life, respectively is: the former is a we experienced cannot escape in a day finally will last minute, while the latter is our persistent, we want to cherish the memory of those people and things. 14, learn to smile, learn to strong, the world you know so many people, so many people and you ar

46、e, you cannot change also cant let everyone like you, so also do not want to do. Life is too short to go crazy to love to go to waste, to chase the dream to regret. 15, when temper, a blessing to go. A wounding elegant people, the key is to control their own emotions. With the mouth is the most stup

47、id behavior. A control negative emotions than a can take a city more powerful water flow slow, language is expensive. People spent two years of time to learn to speak, but to spend a few years time to shut up. That is a kind of ability, that is a kind of wisdom. 16, life is not perfect, sometimes, growth is not a cry, not an eyeful of tears, there is no trace of emotion, there is no gleam of hope, no desire, no action, no static, there is only one kind

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