循环泵房工程施工设计方案

1、 1 / 90马来西亚民都鲁马来西亚民都鲁 209E209E 联合循环电站工程联合循环电站工程MalaysiaMalaysia BINTULU 209E209E CombinedCombined CirculationCirculation StationStation ProjectProject 循环泵房循环泵房CirculatingCirculating PumpsPumps RoomRoom施施工工组组织织设设计计ConstructionConstruction OrganizationOrganization DesginDesgin2008 年 7 月July 2008 2 / 9

2、01 1、工程概况、工程概况 GENERALGENERAL OFOF PROJECTPROJECT 4 41.11.1、自然条件、自然条件 NATURALNATURAL CONDITIONCONDITION4 41.21.2、工程地质与水文条件、工程地质与水文条件 GEOLOGICALGEOLOGICAL ANDAND HYDROLOGICALHYDROLOGICAL CONDTIONSCONDTIONS4 41.2.11.2.1、工程地质、工程地质 GEOLOGICALGEOLOGICAL CONDITIONCONDITION4 41.2.21.2.2、水文条件、水文条件 HYDROLOGI

3、CALHYDROLOGICAL CONDITIONCONDITION9 91.2.41.2.4、地下水、地下水 UNDERGROUNDUNDERGROUND WATERWATER10101.31.3 、气候条件、气候条件 CLIMATICALCLIMATICAL CONDITIONCONDITION11111.3.11.3.1、气温、气温 TEMPERATURETEMPERATURE11111.3.21.3.2、相对湿度与大气压力、相对湿度与大气压力 RELATIVERELATIVE HUMIDITYHUMIDITY ANDAND ATOMSPHERICALATOMSPHERICAL PRES

4、SUREPRESSURE11111.3.31.3.3、降雨量、降雨量 AMOUNTAMOUNT OFOF RAINFASLLRAINFASLL12121.3.41.3.4、风向频率、风向频率 WINDWIND FREQUENCYFREQUENCY12121.41.4、地震烈度、地震烈度 SEISMICSEISMIC INTENSITYINTENSITY12121.51.5、淡水供应、淡水供应FRESHFRESH WATERWATER SUPPLYSUPPLY12121.61.6、施工基本条件、施工基本条件 BASICBASIC CONSTRUCTIONCONSTRUCTION CONDITTI

5、ONSCONDITTIONS 1313RERE1.6.11.6.1、电源、电源 POWERPOWER SUPPLYSUPPLY13131.6.21.6.2、水源、水源 WATERWATER SOURCESOURCE13131.6.31.6.3、临时道路、临时道路 TEMPORARYTEMPORARY ROADROAD13131.6.41.6.4、施工场地、施工场地 CONSTRUCTUIONCONSTRUCTUION SITESITE13131.6.51.6.5、办公区、办公区 OFFICESOFFICES AREASAREAS14142 2、施工准备、施工准备 CONSTRUCTIONCON

6、STRUCTION PREPARATIONPREPARATION14142.12.1、施工组织准备、施工组织准备 PREPARATIONPREPARATION FORFOR CONSTRUCTIONCONSTRUCTION ORGANIZATIONORGANIZATION14142.1.12.1.1、组建项目经理部、组建项目经理部 ESTABLISHESTABLISH PROJECTPROJECT MANAGERMANAGER DEPT.DEPT.14142.1.22.1.2、技术准备、技术准备 TECHNICALTECHNICAL PREPARATIONPREPARATION15152.1.

7、32.1.3、物资设备准备、物资设备准备 PREPARATIONPREPARATION OFOF MATERIALSMATERIALS ANDAND EQUIPMENTEQUIPMENT 16162.1.42.1.4、施工人员准备、施工人员准备 PREPARATIONPREPARATION OFOF CONSTRUCTINGCONSTRUCTING PERSONSPERSONS17172.1.52.1.5、生产现场准备、生产现场准备 PREPARATIONPREPARATION OFOF PRODUCTIONPRODUCTION SITESITE17172.22.2、施工临时设施与现场布置、施

8、工临时设施与现场布置 TEMPORARYTEMPORARY CONSTRUCTIONCONSTRUCTION FACILITIESFACILITIES ANDAND SITESITE ARRANGEMENTARRANGEMENT 18182.2.22.2.2、施工用水、施工用水 WATERWATER USEDUSED FORFOR CONSTRUCTIONCONSTRUCTION18182.2.32.2.3、施工用电、施工用电 POWERPOWER USEDUSED FORFOR CONSTRUCTIONCONSTRUCTION 18182.2.42.2.4、施工道路、施工道路 ROADSRO

9、ADS FORFOR CONSTRUCTIONCONSTRUCTION19192.2.52.2.5、弃土场、弃土场 EARTHEARTH DISCARDINGDISCARDING AREAAREA 19193 3、施工方法与工艺流程、施工方法与工艺流程 CONSTRUCTIONCONSTRUCTION METHODSMETHODS ANDAND PROCESSESPROCESSES20203.13.1、施工方法概述、施工方法概述 GENERALGENERAL OFOF CONSTRUCTIONCONSTRUCTION METHODSMETHODS20203.33.3、泵房沉井施工流程、泵房沉井

10、施工流程 CONSTRUCTIONCONSTRUCTION FLOWFLOW OFOF PUMPSPUMPS ROOMSUNKROOMSUNK WELLWELL21214 4、循环水泵房主要施工方法、循环水泵房主要施工方法 MAINMAIN CONSTRUCTIONCONSTRUCTION METHODSMETHODS OFOF CIRCULATINGCIRCULATING WATERWATER PUMPPUMP ROOMROOM22224.14.1、基本工艺、基本工艺 BASICBASIC PROCESSPROCESS23234.24.2、沉井分节高度、沉井分节高度 SUNKSUNK WEL

11、LWELL SECTIONSECTION HEIGHTHEIGHT23234.34.3、沉井基础处理、沉井基础处理 TREATMENTTREATMENT OFOF SUNKSUNK WELLWELL FOUNDATIONFOUNDATION2323 3 / 904.3.14.3.1、基坑、基坑 FOUNDATIONFOUNDATION PITPIT24244.3.24.3.2、砂垫层铺设、砂垫层铺设 SANDSAND BEDDINGBEDDING LAYINGLAYING25254.44.4、各工序施工方法、各工序施工方法 CONSTRUCTIONCONSTRUCTION METHODMETH

12、OD OFOF ALLALL STEPSSTEPS25254.4.14.4.1、模板、模板 FRAMEWORKFRAMEWORK25254.4.24.4.2、脚手、脚手 SCAFFOLDSCAFFOLD26264.4.34.4.3、钢筋加工与绑扎、钢筋加工与绑扎 STEELSTEEL BARBAR FABRICATIONFABRICATION ANDAND BINDINGBINDING27274.4.54.4.5、施工缝、施工缝 CONSTRUCTIONCONSTRUCTION JOINTJOINT30304.4.64.4.6、拆模、拆模 FRAMEWORKFRAMEWORK DISMENTL

13、EDISMENTLE30304.54.5、沉井下沉、沉井下沉 SUNKSUNK WELLWELL SINKINGSINKING30304.5.14.5.1、准备工作、准备工作 PREPARATIVEPREPARATIVE WORKSWORKS31314.5.24.5.2、水力机械排水下沉、水力机械排水下沉 WATERWATER DISCHARGINGDISCHARGING SINKINGSINKING WITHWITH HYDRAULICHYDRAULIC MACHINESMACHINES35354.5.34.5.3、水力机械不排水下沉、水力机械不排水下沉 NON-WATERNON-WATER

14、 DISCHARGINGDISCHARGING SINKINGSINKING WITHWITH HYDRAULICHYDRAULIC MACHINESMACHINES38384.5.54.5.5、沉井下沉速率控制、沉井下沉速率控制 VOLECITYVOLECITY CONTROLCONTROL OFOF SUNKSUNK WELLWELL SSINKINGSSINKING 41414.5.64.5.6、常遇问题的预防与处理、常遇问题的预防与处理 PRECAUTIONPRECAUTION ANDAND TREATMENTTREATMENT OFOF FREQUENTFREQUENT QUESTI

15、ONSQUESTIONS 42424.64.6、沉井封底、沉井封底 SUNKSUNK WELLWELL BOTTOMBOTTOM SEALINGSEALING43434.6.14.6.1、干法封底、干法封底 DRY-WAYDRY-WAY BOTTOMBOTTOM SEALINGSEALING44444.6.34.6.3、水下封底主要技术措施水下封底主要技术措施 MAINMAIN MEASURESMEASURES FORFOR UNDERWATERUNDERWATER BOTTOMBOTTOM SEALINGSEALING51514.74.7 、钢筋混凝土底版浇筑、钢筋混凝土底版浇筑 POURI

16、NGPOURING OFOF REINFORCEDREINFORCED CONCRETECONCRETE FOUNDATIONFOUNDATION SLABSLAB53534.84.8、沉井二次混凝土与上部主体结构施工、沉井二次混凝土与上部主体结构施工 CONSTRUCTIONCONSTRUCTION OFOF SECONDARYSECONDARY CONCRETECONCRETE ANDAND UPPERUPPER STRUCTURESTRUCTURE OFOF SUNKSUNK WELLWELL53534.8.14.8.1、钢筋工程、钢筋工程 STEELSTEEL BARBAR WORKW

17、ORK53535 5、泵房施工资源配备、泵房施工资源配备 RESOURCERESOURCE ARRANGEMENTARRANGEMENT FORFOR PUMPSPUMPS ROOMROOM CONSTRUCTIONCONSTRUCTION58585.15.1、岗位设置与人员计划、岗位设置与人员计划 PLANPLAN OFOF JOBJOB POSTSPOSTS ANDAND PERSONNELPERSONNEL 58585 5. .2 2、施施工工机机械械设设备备C CO ON NS ST TR RU UC CT TI IN NG G M ME EC CH HI IN NE ES S6060

18、6 6、施工进度计划与保证措施、施工进度计划与保证措施 CONSTRUCTIONCONSTRUCTION SCHEDULESCHEDULE ANDAND ASSURANCEASSURANCE MEASURESMEASURES63636.16.1、泵房施工节点进度计划、泵房施工节点进度计划 SCHEDULESCHEDULE ANDAND PLANNINGPLANNING OFOF PUMPSPUMPS ROOMROOM CONSTRUCTIONCONSTRUCTION STEPSSTEPS63636.26.2、工期保证措施、工期保证措施 SCHEDULESCHEDULE ASSURANCEASS

19、URANCE MEASURESMEASURES64647 7、质质量量目目标标与与保保证证措措施施 Q QU UA AL LI IT TY Y O OB BJ JE EC CT TI IV VE E A AN ND D A AS SS SU UR RA AN NC CE E M ME EA AS SU UR RE ES S67677.17.1、质量目标、质量目标 QUALITYQUALITY OBJECTIVEOBJECTIVE67677.27.2、质量保证措施、质量保证措施 QUALITYQUALITY ASSURANCEASSURANCE MEASURESMEASURES67677.2.1

20、7.2.1、总则、总则 GENERALGENERAL RULESRULES67677.2.27.2.2、砼工程施工、砼工程施工 CONCREGTECONCREGTE WORKWORK CONSTRUCTIONCONSTRUCTION68688 8、安全保证措施、安全保证措施 SAFETYSAFETY ASSURANCEASSURANCE MEASUREMEASURE75758.18.1、安全目标、安全目标 SAFETYSAFETY OBJECTIVEOBJECTIVE75758.28.2、安全管理措施、安全管理措施 SAFETYSAFETY CONTROLCONTROL MEASUREMEAS

21、URE75758.2.18.2.1、通用条款、通用条款 GERNERALGERNERAL TERMSTERMS75758.2.28.2.2、重点环节、重点环节 IMPORTANTIMPORTANT STEPSESTEPSE77779 9、雨季施工措施、雨季施工措施 MEASURESMEASURES FORFOR RAIN-SEASONRAIN-SEASON CONSTRUCTIONCONSTRUCTION8181 4 / 909.29.2、雨季混凝土施工、雨季混凝土施工 CONCRETECONCRETE CONSTRUCTIONCONSTRUCTION ININ RAINRAIN SEASON

22、SEASON81819.39.3、雨季施工其它注意事项、雨季施工其它注意事项 OTHERSOTHERS FORFOR CONSTRUCTIONCONSTRUCTION ININ RAINRAIN SEASONSEASON81811010、附图、附图 ATTACHEDATTACHED PLANSPLANS 错误！未定义书签。1 1、工程概况、工程概况GENERALGENERAL OFOF PROJECTPROJECT1.11.1、自然条件、自然条件 NaturalNatural conditioncondition该项目位于东马砂捞越州民都鲁市（BINTULU） ，本期扩建是在原有的7#、8#两

23、台 9E 开式循环燃机发电机组的基础上新建两台余热锅炉、一台汽轮发电机组与相应的附属配套设施。This project is located in BINTULU, Sarawak state, east Malaysia, this extension is to build 2 new residual heat boiler, 1 turbine-generator unit and relevant accessories based on the original two sets (#7 & #8 ) of 9E open-type circulation turbine

24、generating units. 厂址位于南中国海海岸约 500m 处，离明都鲁港口很近，运距约 6km，厂址地势较平坦。The plant is located at 500m away from the coast of South China Sea which is very near from BINTULU port, transportation distance is about 6km, its topography is flat.1.21.2、工程地质与水文条件、工程地质与水文条件GeologicalGeological andand hydrologicalhydro

25、logical conditionsconditions1.2.11.2.1、工程地质、工程地质GeologicalGeological conditioncondition该工程现场位于南中国海边，现场和周围环境为近岸沉积物和沼泽沉积物所覆盖。沉积物由砂子、粘质砂土和软粘土所组成。This project is located nearby South China Sea, the site and the 5 / 90surrounding is covered by sediment and swamp sediment, the sediments are consist of san

26、ds, viscous sandy soil and soft clay. 场地土类别：II 类。Site earth class: Class II拟建场地本次勘探深度围揭露出的地基岩土体由第四系土层和下伏泥质粉细砂、粉细砂岩构成，其地层岩性由上至下分述如下：The foundation soil exposed within the surveyed range in the planned site is consist of quaternary soil horizon and buried argilaceous fine silt, fine siltstone, other s

27、tratum rocks is described respectively as follows:（1）层素填土：系新近人工堆积，结构较松散，均匀性差，若不进行严格的岩土工程处理，不能作为地基持力层；Layer（1）Plain fill: accumulated artificially, loose structure, poor uniformity, can not be taken as bearing layer until strict rock treatment is done （2-1）层淤泥质粉质粘土呈流塑状态；Layer（2-1）Mucky silty clay sho

28、ws fluid（2-2）层粉质粘土呈可塑状态；Layer (2-2）Silty clay shows ductile（3-1）层粉细砂呈松散状；Layer（3-1）fine silt shows loose（3-2）层粉细砂呈稍密状，具较高的压缩性、承载力低的工程特性，其建筑性能较差；Layer （3-2）fine silt shows dense, in high compressibility, low bearing capacity, its construction ability is low.（3-3）层粉细砂呈中密状；Layer （3-3）fine silt shows me

29、dium dense（3-4）层粉细砂呈密实状，具低压缩性、承载力较高的工程特性，其建筑性能良好。上述各层分布均不连续，层厚变化较大。 6 / 90Layer （3-4）fine silt shows the engineering characteristics of high density, low compressibility, high bearing ability and high construction ability. The above layers are not consecutive, widely vary in thickness. （3-5）层很密的粉细砂层

30、多呈半胶结状态，其建筑工程特性良好。该层大部分地段分布厚度较大；Layer （3-5）fine silt layer in high density mostly shows self-binding condition, it has a good workability. Most section of this layer is thick.（4-1）层粉细砂呈中密状，具中等压缩性、承载力中等的工程特性，其建筑性能一般；Layer （4-1）fine silt shows medium-dense, it has a medium compressibility, and medium

31、bearing capability, ordinary construction ability.（4-2）层粉细砂呈密实状，具低压缩性、承载力较高的工程特性，其建筑性能良好。上述各层分布均不连续，层厚变化较大。Layer （4-2）fine silt shows dense, with the characteristics of low compressibility and high bearing capability, its construction ability is high. All the above layers are not consecutive, and wi

32、dely vary in thickness.（4-3）层很密的粉细砂层亦具良好的建筑特性，但埋藏较深。Layer （4-3）fine silt in high density has very good construction ability, but buried deeply.（5-1）层粉质粘土呈流塑状态，具高压缩性、承载力低的工程特性，其建筑性能差；Layer （5-1）silty clay show fluid condition, it is in the characteristics of high compressibility and low bearing capab

33、ility, its construction ability is poor.（5-2）层粉质粘土呈软塑状态，具较高压缩性、承载力低的工程特性，其 7 / 90建筑性能较差；Layer （5-2）silty clay shows soft plastic condition, it is in the characteristics of high compressibility and low bearing capacity, its construction ability is poor（5-3）层粉质粘土呈可塑状态，建筑性能中等；Layer （5-3）Silty clay show

34、s ductile, its construction ability is medium（5-4）层粉质粘土呈硬塑状态，建筑性能较好，但此两层埋藏较深。Layer （5-4）Silty clay shows hard plastic condition, its construction ability is good, but this two layers are buried in deeper depth.（6-1）层强风化泥质粉细砂岩与(6-2）层中等风化泥质粉细砂岩的建筑性能良好，但埋藏较深。Layer （6-1）The construction ability of the s

35、trongly weathering clay fine silt rock (6-2） and medium weathering clay fine silt rock are very good, but buried in deep depth.下伏基岩为浅灰、灰白色泥质粉细砂岩，普遍间夹薄层浅褐色砂质泥岩。根据其风化程度，将下伏基岩划分为（6-1）层强风化层和（6-2）层中等风化层。 （6-1）层多被风化成砂状，钻孔中很难取出较完整的岩芯，一般层厚1.00-4.00m；（6-2）层岩性相对较完整，岩芯多以短柱状为主，层厚较大，未揭穿。Buried foundation rock is

36、 french gray or clay fine silt offwhite, usually contains thin layer of sandy clay rock. According to the status of weathering, the buried foundation rock is divided into strongly- weathered layer（6-1） and medium- weathered layer(6-2）. Layers （6-1）are mostly weathered into sandy condition, it is har

37、d to take out a complete rock core, normally layer thickness is 1.00-4.00m; layer (6-2）has relatively complete lithology, its rock cores are mostly short-column shape, thickness is big, 8 / 90拟建场地分布的(3-1)、 （3-2）层粉细砂在 7 度地震力的作用下有产生液化的可能，可液化层主要分布在拟建主厂房和海上引水管部分地段（地分布的（2-1）淤泥质粉质粘土与（5-1）层粉质粘土承载力特征值小于 80k

38、Pa。The fine silt layers (3-1)&（3-2）distributed in the planed site is probabaly to liquidize under the action of seismic force of Grade 7, the liquidizing layers mainly distributes in the sections of the planed main workshop and on-sea water introducing pipe, characteristic value of mucky silty c

39、lay (2-1)and silty clay （5-1）is smaller than 80kPa由于拟建场地上部地基土层较软弱，地下水埋藏较浅，基坑开挖时，由（2-1）层构成的坑壁段易产生坍塌， （3-1）层、 （3-2）层易演变成流砂，故需要采取适当的坑壁支护措施，同时采取适当的基坑降水措施。As the upper earth of the planed sites foundation is soft, the underwater is buried in a shallow depth, when foundation pit is excavated, the pit wall

40、 section consisted of the layer（2-1）is easy to collapse, Layer (3-1) & (3-2) is easy to change into drifting sand, so proper supporting measure is necessary, meantime, some foundation pit water level lowering should be taken. 循环水泵房地段 0-20m 深度围分布的地基土层强度较高，初步设计的泵房基底座落在建筑性能良好的（4-3）层很密状的粉细砂层之上，根据该地段

41、地基土构成与其场地条件，循环水泵房下部构筑物可采用沉井法进行施工（由于该地段地下水埋藏较浅，而大开挖所形成的坑壁均为砂层，虽然其密实度较好，但遇水侵泡后仍有可能产生流砂，从而导致坑壁坍塌） ，施工期间应采取切实可行的降排水措施，根据我公司的各类地质条件沉井施工经验，本期工程的基坑降水可以采用深井降水和坑排水措施相结合的方法进行施工，严防坑壁泡水。The strength of the foundation soil layer distributed within 0-20m depth range in circulating water pump rooms section, prelim

42、inarily designed pumps room base is located on the fine silt in high-dense layer (4-3)with good construction ability, according to the 9 / 90composition of foundation soil and site condition, the lower structure of circulating water pumps room can be constructed in the way of sunk well(as the underw

43、ater of this section buried in a shallow depth, pit walls produced by big excavation are all sand layer, although it has a good compactness, occasionally soaking by water is still possible to create drifting sand then to collapse), during construction work, appropriate and feasible level lowering an

44、d water draining measure should be taken, based on our companys construction experience in sunk wells under all classes of geological condition, foundation pit water level lowering of this project can be realized in the combined way of well water level lowering and inside-pit water draining to stric

45、tly prevent socking of pit wall 1.2.21.2.2、水文条件、水文条件hydrologicalhydrological conditioncondition1.2.2.11.2.2.1、海水标高、海水标高 SeaSea waterwater elevationelevation最低天文潮位 (LAT)lowest astronomical tide level0.2 m平均较低水位 (MLLW)Average low water level 0.7 m平均海平面 (MSL )Average Seal Level1.4 m平均较高的高水位 (MHHW)Avera

46、ge Higher High Water Level1.7 m最高天文潮位 (HAT)Highest Astronomical Tide Level2.4 m1.2.2.21.2.2.2、海水温度海水温度 SeaSea waterwater temperaturetemperature最高日平均温度: 33 10 / 90Highest average daily temperature最低日平均温度: 25 Lowest average daily temperature日平均温度: 29.3 Average daily temperature设计冷却水温取 31，最高水温 34 。Desi

47、gned cooling water temperature 31Highest water temperature 34 1.2.31.2.3、电站地面、电站地面 PowerPower stationstation groundground电站地面标高如下:Elevation of PowerPower stationstation ground:ground:平均海水标高 (MWL ) := EL +1.60mAverage seawater elevation电厂地面标高（PGL） := EL + 3.50mElevation of plant ground1.2.41.2.4、地下水、

48、地下水 UnderwaterUnderwater 拟建场地大部分取水孔地下水对混凝土结构具弱腐蚀性，仅一个取水孔地下水对混凝土结构无腐蚀性，故建议按弱腐蚀性考虑。场地地下水对混凝土结构中的钢筋无腐蚀性，对钢结构具有弱腐蚀性；海水对混凝土结构、对混凝土结构中的钢筋与钢结构均具有中等腐蚀性。The underwater in most intake holes in the planed site are corrosive to concrete structure, only one intake hole are exceptional, so we suggest to consider

49、it as light corrosion; seawater has a medium corrosion to both the steel bars in concrete structure and to steel structure. 拟建场地同一孔中地下水位的大部分变幅不大，个别孔中的地下水位变幅较大，估计是受大气降水影响所致。而在平面上各个孔中的地下水位埋藏深度存在着一定差异，最浅 0.49m(见于附属建筑物地段地勘资料)，最深 3.27m(见于循环水管地段地勘资料)。 11 / 90Mostly, the underwater level in the same hole i

50、n the planed site varies no much, only a few holes are exceptional, probably due to precipitation. On plane, the underwater level of all the holes are various in burying depth, the shallowest 0.49m (see geological survey document of accessory buildings section), the deepest 3.27m (see geological sur

51、vey document of circulating water pipe section ). 1.31.3 、气候条件、气候条件 ClimaticClimatic conditioncondition电站地处海边的热带区域，气候炎热，空气潮湿、含盐雾。The power station is located in seaside tropic zone, the climate is hot, air is wet and includes salt fog. 1.3.11.3.1、气温、气温 AirAir temperaturetemperature年平均温度 26.7Average

52、annual temp.日最高平均温度30.9Highest average daily temp.日最低平均温度: 23.5Lowest average daily temp.最高温度 36.3Highest temp.最低温度 19.2Lowest temp.1.3.21.3.2、相对湿度与大气压力、相对湿度与大气压力RelativeRelative humidityhumidity andand atmosphericatmospheric pressurepressure相对湿度每日的变化围大约是 32。 Daily change range of relative humidity

53、32年平均相对湿度85.9%Average relative annual humidity最高大气压力 1065hPaHighest atmospheric pressure 12 / 90最低大气压力 955hPaLowest atmospheric pressure1.3.31.3.3、降雨量、降雨量 RainfallRainfall 平均降雨量: 3759 mm (1951-2004)Average rainfall年最大降雨量: 4692 mmHighest annual rainfall年最小降雨量: 2900 mmLowest annual rainfall日最大降雨量: 222

54、 mmHighest daily rainfall月平均降雨量（19512004）Average monthly rainfall项目item 月份Month123456降雨量 (mm)Rainfall416268272251231259项目Rainfall月份Month789101112降雨量 (mm)Rainfall2502823093584154471.3.41.3.4、风向频率、风向频率 WindWind directiondirection frequencyfrequency根据民都鲁（BINTULU）机场气象站 1975 年2003 年共 28 年风向频率资料统计， 30 年最大

55、风速为 31 m/s.According to wind direction frequency statistics of BINTULU airport weather station during 1975-2003, highest wind speed is 31 m/s in 30 years 1.41.4、地震烈度、地震烈度 seismicseismic intensityintensity地震水平加速度 0.05g 13 / 90Seismic horizontal acceleration 1.51.5、淡水供应、淡水供应 freshfresh waterwater supp

56、lysupply电厂淡水水源来自城市生活饮用水管网。Fresh water of power plant comes from the municipal life and drinking water pipeline network.1.61.6、施工基本条件、施工基本条件basicbasic constructionconstruction conditionsconditions1.6.11.6.1、电源、电源 powerpower supplysupply甲方为取水泵房、顶管、埋管施工提供 500kv 电源变压器，现场需要设置配电房，现场施工和生活用电需要用电缆、电源控制柜分别引接到

57、施工现场和生活区；Party A shall provide 500kv power supply transformer for intake pumps room, jacking pipe and buried pipe, switching house shall be prepared, the power for site construction and life power needs to be respectively connected to construction site and life zone with cable and cubicle.1.6.21.6.2

58、、水源、水源 waterwater sourcesource施工用水由甲方在距离施工现场 100 米围就近提供接口，生活用水目前尚未形成环网，由甲方在生活区围就近提供接口，接口以下部分由我公司自行解决。Party A shall provide an interface within 100m away from construction site for the water used for construction work, at present, no life water ring network is established, party A shall provide inter

59、face as near as possible within life zone, the following part will be on us 1.6.31.6.3、临时道路、临时道路 TemporaryTemporary roadroad现有一条临时道路进入施工区域附近，进场后需要从该道路引接一条施工道路到达取水泵房、顶管等施工场地。Now a temporary road has been accessible to construction zone and vicinity, one working road needs to be led to the constructio

60、n sites 14 / 90of water pumps room and jacking pipes after accessing construction site. 1.6.41.6.4、施工场地、施工场地 ConstructionConstruction sitesite施工场地由业主和甲方提供，分施工临建设施用地和施工用地，总面积约11000m2。Construction site will be provided by the owner or Party A, including temporary building land and construction working land, about 11000