循環(huán)泵房施工組織設(shè)計(jì)方案

1、馬來(lái)西亞民都魯209E聯(lián)合循環(huán)電站工程Malaysia BINTULU 209E Combined Circulation Station Project 循環(huán)泵房Circulating Pumps Room施工組織設(shè)計(jì)Construction Organization Desgin2008年7月July 2008 TOC o 1-3 h z u HYPERLINK l _Toc203841320 1、工程概況General of project PAGEREF _Toc203841320 h 4 HYPERLINK l _Toc203841321 1.1、自然條件 natural condi

2、tion PAGEREF _Toc203841321 h 4 HYPERLINK l _Toc203841322 1.2、工程地質(zhì)及水文條件 geological and hydrological condtions PAGEREF _Toc203841322 h 4 HYPERLINK l _Toc203841323 1.2.1、工程地質(zhì) geological condition PAGEREF _Toc203841323 h 4 HYPERLINK l _Toc203841324 1.2.2、水文條件Hydrological condition PAGEREF _Toc203841324

3、h 9 HYPERLINK l _Toc203841325 1.2.4、地下水 underground water PAGEREF _Toc203841325 h 10 HYPERLINK l _Toc203841326 1.3 、氣候條件climatical condition PAGEREF _Toc203841326 h 11 HYPERLINK l _Toc203841327 1.3.1、氣溫 temperature PAGEREF _Toc203841327 h 11 HYPERLINK l _Toc203841328 1.3.2、相對(duì)濕度及大氣壓力relative humidity

4、 and atomspherical pressure PAGEREF _Toc203841328 h 11 HYPERLINK l _Toc203841329 1.3.3、降雨量amount of rainfasll PAGEREF _Toc203841329 h 12 HYPERLINK l _Toc203841330 1.3.4、風(fēng)向頻率wind frequency PAGEREF _Toc203841330 h 12 HYPERLINK l _Toc203841331 1.4、地震烈度 seismic intensity PAGEREF _Toc203841331 h 12 HYPER

5、LINK l _Toc203841332 1.5、淡水供應(yīng) Fresh water supply PAGEREF _Toc203841332 h 12 HYPERLINK l _Toc203841333 1.6、施工差不多條件basic construction condittions PAGEREF _Toc203841333 h 13RE HYPERLINK l _Toc203841334 1.6.1、電源 power supply PAGEREF _Toc203841334 h 13 HYPERLINK l _Toc203841335 1.6.2、水源 water source PAGE

6、REF _Toc203841335 h 13 HYPERLINK l _Toc203841336 1.6.3、臨時(shí)道路 temporary road PAGEREF _Toc203841336 h 13 HYPERLINK l _Toc203841337 1.6.4、施工場(chǎng)地constructuion site PAGEREF _Toc203841337 h 13 HYPERLINK l _Toc203841338 1.6.5、辦公區(qū)offices areas PAGEREF _Toc203841338 h 14 HYPERLINK l _Toc203841339 2、施工預(yù)備construc

7、tion preparation PAGEREF _Toc203841339 h 14 HYPERLINK l _Toc203841340 2.1、施工組織預(yù)備preparation for construction organization PAGEREF _Toc203841340 h 14 HYPERLINK l _Toc203841341 2.1.1、組建項(xiàng)目經(jīng)理部Establish Project Manager Dept. PAGEREF _Toc203841341 h 14 HYPERLINK l _Toc203841342 2.1.2、技術(shù)預(yù)備Technical Prepara

8、tion PAGEREF _Toc203841342 h 15 HYPERLINK l _Toc203841343 2.1.3、物資設(shè)備預(yù)備Preparation of Materials and equipment PAGEREF _Toc203841343 h 16 HYPERLINK l _Toc203841344 2.1.4、施工人員預(yù)備Preparation of constructing persons PAGEREF _Toc203841344 h 17 HYPERLINK l _Toc203841345 2.1.5、生產(chǎn)現(xiàn)場(chǎng)預(yù)備Preparation of production

9、 site PAGEREF _Toc203841345 h 17 HYPERLINK l _Toc203841346 2.2、施工臨時(shí)設(shè)施及現(xiàn)場(chǎng)布置Temporary construction facilities and site arrangement PAGEREF _Toc203841346 h 18 HYPERLINK l _Toc203841347 2.2.2、施工用水water used for construction PAGEREF _Toc203841347 h 18 HYPERLINK l _Toc203841348 2.2.3、施工用電Power used for co

10、nstruction PAGEREF _Toc203841348 h 18 HYPERLINK l _Toc203841349 2.2.4、施工道路Roads for construction PAGEREF _Toc203841349 h 19 HYPERLINK l _Toc203841350 2.2.5、棄土場(chǎng) Earth discarding area PAGEREF _Toc203841350 h 19 HYPERLINK l _Toc203841351 3、施工方法及工藝流程 construction methods and processes PAGEREF _Toc203841

11、351 h 20 HYPERLINK l _Toc203841352 3.1、施工方法概述General of construction methods PAGEREF _Toc203841352 h 20 HYPERLINK l _Toc203841353 3.3、泵房沉井施工流程Construction flow of pumps roomsunk well PAGEREF _Toc203841353 h 21 HYPERLINK l _Toc203841354 4、循環(huán)水泵房要緊施工方法 Main construction methods of circulating water pum

12、p room PAGEREF _Toc203841354 h 22 HYPERLINK l _Toc203841355 4.1、差不多工藝Basic process PAGEREF _Toc203841355 h 23 HYPERLINK l _Toc203841356 4.2、沉井分節(jié)高度 Sunk well section height PAGEREF _Toc203841356 h 23 HYPERLINK l _Toc203841357 4.3、沉井基礎(chǔ)處理Treatment of sunk well foundation PAGEREF _Toc203841357 h 23 HYPE

13、RLINK l _Toc203841358 4.3.1、基坑 Foundation pit PAGEREF _Toc203841358 h 24 HYPERLINK l _Toc203841359 4.3.2、砂墊層鋪設(shè) Sand bedding laying PAGEREF _Toc203841359 h 25 HYPERLINK l _Toc203841360 4.4、各工序施工方法 construction method of all steps PAGEREF _Toc203841360 h 25 HYPERLINK l _Toc203841361 4.4.1、模板framework

14、PAGEREF _Toc203841361 h 25 HYPERLINK l _Toc203841362 4.4.2、腳手 scaffold PAGEREF _Toc203841362 h 26 HYPERLINK l _Toc203841363 4.4.3、鋼筋加工與綁扎steel bar fabrication and binding PAGEREF _Toc203841363 h 27 HYPERLINK l _Toc203841364 4.4.5、施工縫 construction joint PAGEREF _Toc203841364 h 30 HYPERLINK l _Toc2038

15、41365 4.4.6、拆模 framework dismentle PAGEREF _Toc203841365 h 30 HYPERLINK l _Toc203841366 4.5、沉井下沉 sunk well sinking PAGEREF _Toc203841366 h 30 HYPERLINK l _Toc203841367 4.5.1、預(yù)備工作preparative works PAGEREF _Toc203841367 h 31 HYPERLINK l _Toc203841368 4.5.2、水力機(jī)械排水下沉 Water discharging sinking with hydra

16、ulic machines PAGEREF _Toc203841368 h 35 HYPERLINK l _Toc203841369 4.5.3、水力機(jī)械不排水下沉non-Water discharging sinking with hydraulic machines PAGEREF _Toc203841369 h 38 HYPERLINK l _Toc203841370 4.5.5、沉井下沉速率操縱volecity control of sunk well sSinking PAGEREF _Toc203841370 h 41 HYPERLINK l _Toc203841371 4.5.6

17、、常遇問題的預(yù)防及處理 Precaution and treatment of Frequent questions PAGEREF _Toc203841371 h 42 HYPERLINK l _Toc203841372 4.6、沉井封底 Sunk well bottom sealing PAGEREF _Toc203841372 h 43 HYPERLINK l _Toc203841373 4.6.1、干法封底 dry-way bottom sealing PAGEREF _Toc203841373 h 44 HYPERLINK l _Toc203841374 4.6.3、水下封底要緊技術(shù)

18、措施Main measures for underwater bottom sealing PAGEREF _Toc203841374 h 51 HYPERLINK l _Toc203841375 4.7 、鋼筋混凝土底版澆筑Pouring of reinforced concrete foundation slab PAGEREF _Toc203841375 h 53 HYPERLINK l _Toc203841376 4.8、沉井二次混凝土及上部主體結(jié)構(gòu)施工Construction of secondary concrete and upper structure of sunk well

19、 PAGEREF _Toc203841376 h 53 HYPERLINK l _Toc203841377 4.8.1、鋼筋工程 steel bar work PAGEREF _Toc203841377 h 53 HYPERLINK l _Toc203841378 5、泵房施工資源配備Resource arrangement for pumps room construction PAGEREF _Toc203841378 h 58 HYPERLINK l _Toc203841379 5.1、崗位設(shè)置及人員打算Plan of job posts and personnel PAGEREF _T

20、oc203841379 h 58 HYPERLINK l _Toc203841380 5.2、施工機(jī)械設(shè)備Constructing mechines PAGEREF _Toc203841380 h 60 HYPERLINK l _Toc203841381 6、施工進(jìn)度打算及保證措施 Construction schedule and assurance measures PAGEREF _Toc203841381 h 63 HYPERLINK l _Toc203841382 6.1、泵房施工節(jié)點(diǎn)進(jìn)度打算Schedule and planning of pumps room constructi

21、on steps PAGEREF _Toc203841382 h 63 HYPERLINK l _Toc203841425 6.2、工期保證措施 Schedule assurance measures PAGEREF _Toc203841425 h 64 HYPERLINK l _Toc203841426 7、質(zhì)量目標(biāo)及保證措施quality objective and assurance measures PAGEREF _Toc203841426 h 67 HYPERLINK l _Toc203841427 7.1、質(zhì)量目標(biāo)quality objective PAGEREF _Toc203

22、841427 h 67 HYPERLINK l _Toc203841428 7.2、質(zhì)量保證措施quality assurance measures PAGEREF _Toc203841428 h 67 HYPERLINK l _Toc203841429 7.2.1、總則General rules PAGEREF _Toc203841429 h 67 HYPERLINK l _Toc203841430 7.2.2、砼工程施工Concregte work construction PAGEREF _Toc203841430 h 68 HYPERLINK l _Toc203841431 8、安全保

23、證措施Safety assurance measure PAGEREF _Toc203841431 h 75 HYPERLINK l _Toc203841432 8.1、安全目標(biāo)safety objective PAGEREF _Toc203841432 h 75 HYPERLINK l _Toc203841433 8.2、安全治理措施safety control measure PAGEREF _Toc203841433 h 75 HYPERLINK l _Toc203841434 8.2.1、通用條款Gerneral terms PAGEREF _Toc203841434 h 75 HYP

24、ERLINK l _Toc203841435 8.2.2、重點(diǎn)環(huán)節(jié)Important stepse PAGEREF _Toc203841435 h 77 HYPERLINK l _Toc203841436 9、雨季施工措施 Measures for rain-season construction PAGEREF _Toc203841436 h 81 HYPERLINK l _Toc203841437 9.2、雨季混凝土施工Concrete construction in rain season PAGEREF _Toc203841437 h 81 HYPERLINK l _Toc203841

25、438 9.3、雨季施工其它注意事項(xiàng)Others for construction in rain season PAGEREF _Toc203841438 h 81 HYPERLINK l _Toc203841439 10、附圖 Attached plans PAGEREF _Toc203841439 h 錯(cuò)誤！未定義書簽。1、工程概況General of Project1.1、自然條件Natural condition該項(xiàng)目位于東馬砂撈越州民都魯市（BINTULU），本期擴(kuò)建是在原有的7#、8#兩臺(tái)9E開式循環(huán)燃機(jī)發(fā)電機(jī)組的基礎(chǔ)上新建兩臺(tái)余熱鍋爐、一臺(tái)汽輪發(fā)電機(jī)組及相應(yīng)的附屬配套設(shè)施。Th

26、is 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 generating units. 廠址位于南中國(guó)海海岸約500m處，離明都魯港口專門近，運(yùn)距約6km，廠

27、址地勢(shì)較平坦。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.1.2、工程地質(zhì)及水文條件 Geological and hydrological conditions1.2.1、工程地質(zhì) Geological condition該工程現(xiàn)場(chǎng)位于南中國(guó)海邊，現(xiàn)場(chǎng)和周圍環(huán)境為近岸沉積物和沼澤沉積物所覆蓋。沉積物由砂子、

28、粘質(zhì)砂土和軟粘土所組成。This project is located nearby South China Sea, the site and the surrounding is covered by sediment and swamp sediment, the sediments are consist of sands, viscous sandy soil and soft clay. 場(chǎng)地土類不：II類。Site earth class: Class II擬建場(chǎng)地本次勘探深度范圍內(nèi)揭露出的地基巖土體由第四系土層和下伏泥質(zhì)粉細(xì)砂、粉細(xì)砂巖構(gòu)成，其地層巖性由上至下分述如下：The

29、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 stratum rocks is described respectively as follows:（1）層素填土：系新近人工堆積，結(jié)構(gòu)較松散，均勻性差，若不進(jìn)行嚴(yán)格的巖土工程處理，不能作為地基持力層；Layer（1）Plain fill: accumulated ar

30、tificially, loose structure, poor uniformity, can not be taken as bearing layer until strict rock treatment is done （2-1）層淤泥質(zhì)粉質(zhì)粘土呈流塑狀態(tài)；Layer（2-1）Mucky silty clay shows fluid（2-2）層粉質(zhì)粘土呈可塑狀態(tài)；Layer (2-2）Silty clay shows ductile（3-1）層粉細(xì)砂呈松散狀；Layer（3-1）fine silt shows loose（3-2）層粉細(xì)砂呈稍密狀，具較高的壓縮性、承載力低的工程特性

31、，其建筑性能較差；Layer （3-2）fine silt shows dense, in high compressibility, low bearing capacity, its construction ability is low.（3-3）層粉細(xì)砂呈中密狀；Layer （3-3）fine silt shows medium dense（3-4）層粉細(xì)砂呈密實(shí)狀，具低壓縮性、承載力較高的工程特性，其建筑性能良好。上述各層分布均不連續(xù)，層厚變化較大。Layer （3-4）fine silt shows the engineering characteristics of high d

32、ensity, low compressibility, high bearing ability and high construction ability. The above layers are not consecutive, widely vary in thickness. （3-5）層專門密的粉細(xì)砂層多呈半膠結(jié)狀態(tài)，其建筑工程特性良好。該層大部分地段分布厚度較大；Layer （3-5）fine silt layer in high density mostly shows self-binding condition, it has a good workability. Mo

33、st section of this layer is thick.（4-1）層粉細(xì)砂呈中密狀，具中等壓縮性、承載力中等的工程特性，其建筑性能一般；Layer （4-1）fine silt shows medium-dense, it has a medium compressibility, and medium bearing capability, ordinary construction ability.（4-2）層粉細(xì)砂呈密實(shí)狀，具低壓縮性、承載力較高的工程特性，其建筑性能良好。上述各層分布均不連續(xù)，層厚變化較大。Layer （4-2）fine silt shows dense,

34、with the characteristics of low compressibility and high bearing capability, its construction ability is high. All the above layers are not consecutive, and widely vary in thickness.（4-3）層專門密的粉細(xì)砂層亦具良好的建筑特性，但埋藏較深。Layer （4-3）fine silt in high density has very good construction ability, but buried deep

35、ly.（5-1）層粉質(zhì)粘土呈流塑狀態(tài)，具高壓縮性、承載力低的工程特性，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 capability, its construction ability is poor.（5-2）層粉質(zhì)粘土呈軟塑狀態(tài)，具較高壓縮性、承載力低的工程特性，其建筑性能較差；Layer （5-2）silty clay shows soft plastic condition, it is i

36、n the characteristics of high compressibility and low bearing capacity, its construction ability is poor（5-3）層粉質(zhì)粘土呈可塑狀態(tài)，建筑性能中等；Layer （5-3）Silty clay shows ductile, its construction ability is medium（5-4）層粉質(zhì)粘土呈硬塑狀態(tài)，建筑性能較好，但此兩層埋藏較深。Layer （5-4）Silty clay shows hard plastic condition, its construction a

37、bility is good, but this two layers are buried in deeper depth.（6-1）層強(qiáng)風(fēng)化泥質(zhì)粉細(xì)砂巖及(6-2）層中等風(fēng)化泥質(zhì)粉細(xì)砂巖的建筑性能良好，但埋藏較深。Layer （6-1）The construction ability of the strongly weathering clay fine silt rock (6-2） and medium weathering clay fine silt rock are very good, but buried in deep depth.下伏基巖為淺灰、灰白色泥質(zhì)粉細(xì)砂巖，普遍

38、間夾薄層淺褐色砂質(zhì)泥巖。依照其風(fēng)化程度，將下伏基巖劃分為（6-1）層強(qiáng)風(fēng)化層和（6-2）層中等風(fēng)化層。（6-1）層多被風(fēng)化成砂狀，鉆孔中專門難取出較完整的巖芯，一般層厚1.00-4.00m；（6-2）層巖性相對(duì)較完整，巖芯多以短柱狀為主，層厚較大，未揭穿。Buried foundation rock is french gray or clay fine silt offwhite, usually contains thin layer of sandy clay rock. According to the status of weathering, the buried foundati

39、on 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 hard 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

40、 short-column shape, thickness is big, 擬建場(chǎng)地內(nèi)分布的(3-1)、（3-2）層粉細(xì)砂在7度地震力的作用下有產(chǎn)生液化的可能，可液化層要緊分布在擬建主廠房和海上引水管部分地段（地內(nèi)分布的（2-1）淤泥質(zhì)粉質(zhì)粘土及（5-1）層粉質(zhì)粘土承載力特征值小于80kPa。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 l

41、ayers mainly distributes in the sections of the planed main workshop and on-sea water introducing pipe, characteristic value of mucky silty clay (2-1)and silty clay （5-1）is smaller than 80kPa 由于擬建場(chǎng)地上部地基土層較軟弱，地下水埋藏較淺，基坑開挖時(shí)，由（2-1）層構(gòu)成的坑壁段易產(chǎn)生坍塌，（3-1）層、（3-2）層易演變成流砂，故需要采取適當(dāng)?shù)目颖谥ёo(hù)措施，同時(shí)采取適當(dāng)?shù)幕咏邓胧?。As the upp

42、er earth of the planed sites foundation is soft, the underwater is buried in a shallow depth, when foundation pit is excavated, the pit wall 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, me

43、antime, some foundation pit water level lowering should be taken. 循環(huán)水泵房地段0-20m深度范圍內(nèi)分布的地基土層強(qiáng)度較高，初步設(shè)計(jì)的泵房基底座落在建筑性能良好的（4-3）層專門密狀的粉細(xì)砂層之上，依照該地段地基土構(gòu)成及其場(chǎng)地條件，循環(huán)水泵房下部構(gòu)筑物可采納沉井法進(jìn)行施工（由于該地段地下水埋藏較淺，而大開挖所形成的坑壁均為砂層，盡管其密實(shí)度較好，但遇水侵泡后仍有可能產(chǎn)生流砂，從而導(dǎo)致坑壁坍塌），施工期間應(yīng)采取切實(shí)可行的降排水措施，依照我公司的各類地質(zhì)條件沉井施工經(jīng)驗(yàn)，本期工程的基坑降水能夠采納深井降水和坑內(nèi)排水措施相結(jié)合的方法進(jìn)

44、行施工，嚴(yán)防坑壁泡水。The strength of the foundation soil layer distributed within 0-20m depth range in circulating water pump rooms section, preliminarily designed pumps room base is located on the fine silt in high-dense layer (4-3)with good construction ability, according to the composition of foundation so

45、il and site condition, the lower structure of circulating water pumps room can be constructed in the way of sunk well(as the underwater 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 wate

46、r is still possible to create drifting sand then to collapse), during construction work, appropriate and feasible level lowering and water draining measure should be taken, based on our companys construction experience in sunk wells under all classes of geological condition, foundation pit water lev

47、el lowering of this project can be realized in the combined way of well water level lowering and inside-pit water draining to strictly prevent socking of pit wall 1.2.2、水文條件 hydrological condition1.2.2.1、海水標(biāo)高 Sea water elevation最低天文潮位 (LAT)lowest astronomical tide level0.2 m平均較低水位 (MLLW)Average low

48、water level 0.7 m平均海平面 (MSL )Average Seal Level1.4 m平均較高的高水位 (MHHW)Average Higher High Water Level1.7 m最高天文潮位 (HAT) Highest Astronomical Tide Level2.4 m1.2.2.2、海水溫度 Sea water temperature最高日平均溫度: 33 Highest average daily temperature最低日平均溫度: 25 Lowest average daily temperature日平均溫度: 29.3 Average daily

49、 temperature設(shè)計(jì)冷卻水溫取31，最高水溫34 。Designed cooling water temperature 31Highest water temperature 34 1.2.3、電站地面 Power station ground電站地面標(biāo)高如下: Elevation of Power station ground:平均海水標(biāo)高 (MWL ) := EL +1.60mAverage seawater elevation電廠地面標(biāo)高（PGL） := EL + 3.50mElevation of plant ground1.2.4、地下水 Underwater 擬建場(chǎng)地大部

50、分取水孔內(nèi)地下水對(duì)混凝土結(jié)構(gòu)具弱腐蝕性，僅一個(gè)取水孔內(nèi)地下水對(duì)混凝土結(jié)構(gòu)無(wú)腐蝕性，故建議按弱腐蝕性考慮。場(chǎng)地地下水對(duì)混凝土結(jié)構(gòu)中的鋼筋無(wú)腐蝕性，對(duì)鋼結(jié)構(gòu)具有弱腐蝕性；海水對(duì)混凝土結(jié)構(gòu)、對(duì)混凝土結(jié)構(gòu)中的鋼筋及鋼結(jié)構(gòu)均具有中等腐蝕性。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 it as light corrosion; seawat

51、er has a medium corrosion to both the steel bars in concrete structure and to steel structure. 擬建場(chǎng)地同一孔中地下水位的大部分變幅不大，個(gè)不孔中的地下水位變幅較大，可能是受大氣降水阻礙所致。而在平面上各個(gè)孔中的地下水位埋藏深度存在著一定差異，最淺0.49m(見于附屬建筑物地段地勘資料)，最深3.27m(見于循環(huán)水管地段地勘資料)。Mostly, the underwater level in the same hole in the planed site varies no much, only

52、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 survey document of circulating water pipe

53、section ). 1.3 、氣候條件 Climatic condition電站地處海邊的熱帶區(qū)域，氣候炎熱，空氣潮濕、含鹽霧。The power station is located in seaside tropic zone, the climate is hot, air is wet and includes salt fog. 1.3.1、氣溫 Air temperature年平均溫度 26.7Average annual temp.日最高平均溫度30.9Highest average daily temp.日最低平均溫度: 23.5Lowest average daily te

54、mp.最高溫度 36.3 Highest temp.最低溫度 19.2Lowest temp.1.3.2、相對(duì)濕度及大氣壓力 Relative humidity and atmospheric pressure相對(duì)濕度每日的變化范圍大約是32。 Daily change range of relative humidity 32年平均相對(duì)濕度85.9%Average relative annual humidity最高大氣壓力1065hPaHighest atmospheric pressure最低大氣壓力955hPaLowest atmospheric pressure1.3.3、降雨量 R

55、ainfall 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 mmHighest daily rainfall月平均降雨量（19512004）Average monthly rainfall項(xiàng)目item 月份Month123456降雨量 (mm)Rainfall416268272251231259項(xiàng)目Rainfall月份Month789101112降雨量 (mm)Rainfall250

56、2823093584154471.3.4、風(fēng)向頻率 Wind direction frequency依照民都魯（BINTULU）機(jī)場(chǎng)氣象站1975年2003年共28年風(fēng)向頻率資料統(tǒng)計(jì)， 30年最大風(fēng)速為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 1.4、地震烈度 seismic intensity地震水平加速度 0.05gSeismic ho

57、rizontal acceleration 1.5、淡水供應(yīng) fresh water supply電廠淡水水源來(lái)自都市生活飲用水管網(wǎng)。Fresh water of power plant comes from the municipal life and drinking water pipeline network.1.6、施工差不多條件 basic construction conditions1.6.1、電源 power supply甲方為取水泵房、頂管、埋管施工提供500kv電源變壓器，現(xiàn)場(chǎng)需要設(shè)置配電房，現(xiàn)場(chǎng)施工和生活用電需要用電纜、電源操縱柜分不引接到施工現(xiàn)場(chǎng)和生活區(qū)；Party

58、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.1.6.2、水源 water source施工用水

59、由甲方在距離施工現(xiàn)場(chǎng)100米范圍內(nèi)就近提供接口，生活用水目前尚未形成環(huán)網(wǎng)，由甲方在生活區(qū)范圍內(nèi)就近提供接口，接口以下部分由我公司自行解決。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 interface as near as possible within

60、life zone, the following part will be on us 1.6.3、臨時(shí)道路 Temporary road現(xiàn)有一條臨時(shí)道路進(jìn)入施工區(qū)域附近，進(jìn)場(chǎng)后需要從該道路引接一條施工道路到達(dá)取水泵房、頂管等施工場(chǎng)地。Now a temporary road has been accessible to construction zone and vicinity, one working road needs to be led to the construction sites of water pumps room and jacking pipes after acc