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1、電纜溝開挖施工方案Work Method of Cable Trench Excavation編 制：Compiled by:審 核：Reviewed by:2009年10月21日October 21,2009B301IB300 |A472 -rnri11 旬D TTrTTi iTIi 11 iTiil =Qmn 山 ll 山ll fllllHlHlllllllll WinnTTnTnTTTnWTTTTTTTTnTTTTTn435KV U/G Cable Main Routing.C581 South & A472.Line 135KV U/G Cable Main Routing.C581

2、North & A472.Line 3目錄Content一. 概況 OVERVIEW2工程概況 PROJECT OVERVIEW31.1 施工范圍 SCOPE OF WORK3編制依據(jù) COMPILATION BASIS4二. 施工工藝流程 CONSTRUCTION PROCESS:4前期準備PREPARATIONS44.1 技術(shù)準備 TECHNICAL PREPARATION4材料準備 MATERIAL PREPARATION54.2 主要機具準備 MAIN EQUIPMENTS PREPARATION5作業(yè)環(huán)境準備 OPERATING ENVIRONMENT PREPARATIONS5三.

3、 電纜溝施工 CABLE TRENCH CONSTRUCTION5電纜溝測量、定位 CABLE TRENCH MEASUREMENT AND POSITIONING. 55.1 電纜溝開挖 CABLE TRENCH EXCAVATION5質(zhì)量控制 QUALITY CONTROI76.1 電纜溝夕卜形尺寸允許偏差表ALLOWABLE DEVIATED EXTERNALDIMENSIONS OF CABLE TRENCH TABLE76.2應(yīng)注意的質(zhì)量問題QUALITY ISSUES7成品保護 FINISHED PROTECTION8四. 施工記錄 CONSTRUCTION OF RECORD8安

4、全生產(chǎn)、文明施工要求和措施SAFETY AND CIVILIZED CONSTRUCTIONREQUESTS AND MEASURES8附廠區(qū)電纜溝圖：ATTACHED: CABLE TRENCH DRAWING8一概況Overview工程概況 Project Overview項目名稱：本工程涉及三個變電站，分別是現(xiàn)有的220/35kV A472變電站、現(xiàn)有的35/10kV B301S變電站 以及新建的35/IOkVC581變電站，工作內(nèi)容為三個變電站之間和從三個變電站接至MV用戶的 電力電纜、控制電纜、接地電纜敷設(shè)所需電纜溝的開挖工程oThe project involves three s

5、ubstations, namely the existing 220/35kV A472 substation, the existing 35/10kV B301S the 35/10kV C581 substation and a new substation. This is the power, control and grounding cable trench excavation project among three substations and for MV users connected to the three substations.1.1 施工范圍 Scope o

6、f Worki) 由A472變電站引出3路35kV出線。其中：路引至B301S建筑(35/1 OkV變電站)原1#主變，原1#主變電纜將抽出，與新增4#主變連接： 另兩路引至35/1 OkV C581變電站I#主變和2#主變?；芈凡捎肍S-YJY-26/35kV-1 *300mm2單芯 電纜，直埋敷設(shè)。去C581的兩路35kV線路，敷設(shè)時沿不同路徑，以避免兩回線路同時受損。 Pull three 35V outgoings from A472 substation. Of which:The first outgoing is led to B30IS Building (35/1 OkV s

7、ubstation) (he original one # main transformer, pull the original one # main transformer cable out, and connect to the adding 4 # main transformer; the other two outgoings are led to 35/1 OkV C58I # I and substation 2 # main transformer. Use FS-YJY-26/35kV-1 * 300mm2 single-core cables for Loop and

8、buried pulling. Two 35kV lines to C581 arc laid along different paths to avoid damage of the two loops.2) 由B30IS變電站引出7路l()kV出線。全部引至B399中心制冷站。回路采用IOkV截面為95 mm2 的三芯鎧裝電纜，由B301S南面現(xiàn)有的電纜井引出直埋至裝置。Pull 7 IOkV outgoings from B301S substation to B399ccntral refrigeration station. Loop uses IOkV thrce-corc arm

9、ored cable with cross-section 95mm2 and pull out from the existing cable well in the south of B301S then buried lay to the device.3) 由C581引出10路IOkV線路，分別為A507的四臺變壓器，B551的兩臺變壓器，B553TDA裝 置氫氣壓縮機2臺，C521鹽酸裝置氯氣壓縮機1臺，鹽酸壓縮機1臺提供電源。其中，變壓器 回路采用IOkV截面為185mm2的三芯鎧裝電纜，馬達回路采用IOkV截面為95mm2的三芯鎧裝 電纜。以上電纜線路均沿規(guī)劃路徑埋地敷設(shè)。10

10、IOkV lines led from C58I are used co supply power to A507s four transformers, B551 two transformers, B553TDA 2 sets of hydrogen compressor unit, C52I hydrochloric acid chlorine gas compressor unit, and hydrochloric acid compressor unit respectively. Among them, transformer circuit uses x 3-core armo

11、red cable with IOkV cross-section 185mni2, motor circuit uses thrce-corc armored cable with IOkV cross-section 95nim2. All cable lines will be laid underground along the planning path.4) 接地電纜回路：Ground cable loop:從A472敷設(shè)一根95mm2裸銅線去C581,同時從C58I敷設(shè)四根95mm2裸銅線，分別引至B551、 A507、B553和C521,作等電位聯(lián)結(jié)。以上電纜線路均沿規(guī)劃路徑埋

12、地敷設(shè)。Lay a 95mm2 bare copper wire to C58! from A472. Meanwhile lay four bare copper wires to B551, A507, B553 and C521 for equipotential bonding. All cable lines will be laid underground along (he planning path.5) 本工程電纜溝走向如下:The cable trench directions are as follows:電纜溝南線為A472至C581,全長約850米，根據(jù)K-K斷面圖：

13、開挖深度為I米，溝槽底寬().6 米，溝槽面寬約 1.1 米。 Cable trench south line is from A472 to C581 about 850 meters long. According to KK sectional drawing, excavation depth is of 1 meter with trench bottom width 0.6 in and face width 1.1 m.電纜溝北線為A472至C58I和B301,其中共線約220米，根據(jù)A-A斷面圖有：開挖深度為1 米，溝槽底寬 1 米，溝槽面寬約 1.5 米；Cable tren

14、ch north line is from A472 to C581 and B301 and the col linear is about 220 meters. According to AA sectional drawing, excavation depth is 1 meter trench wilh trench bottom width 1 m and face width 1.5 m.至C581支線約430米，根據(jù)E-E斷面圖有：開挖深度為I米，溝槽底寬0.6米，溝槽面寬約1.1 米；至B301支線約300米，根據(jù)B-B斷面圖有：開挖深度為1米，溝槽底寬0.6米，溝槽面寬

15、約 1.1 米。The sub-line the C581 is about 430 meters. According to EE sectional drawing excavation depth is 1 meter trench with trench bottom width 1 m and face width 1.1 m. The sub-line to B301thc is about 300 meters. According to BB sectional drawing , excavation depth is 1 meter trench with trench b

16、ottom width 1 m and face width 1.1 in.二. 編制依據(jù) Compilation Basis1）根據(jù)電氣包（中壓部分）招標文件及招標圖紙編制而成。According to Electric package （MV） the tender and tender drawings.2）在充分研究工程的客觀情況和施工特點，結(jié)合我公司類似工程施工經(jīng)驗的基礎(chǔ)上編制Wo Based on full study on construction characteristics and objective situation and combined with similar

17、construction experience.3）在本方案編制過程中，嚴格執(zhí)行國家現(xiàn)行建筑和安裝工程施工及驗收規(guī)范、規(guī)程、標準、設(shè) 計規(guī)范。具體如卜：In this compilation process, strictly implement current national construction and installation construction, acceptance norms, procedures, standards, and design specifications. As follows:電氣裝置安裝工程電纜線路施工及驗收規(guī)范 GB50168-2006Elec

18、trical installation cable construction and acceptance standards GB50168-2006電氣裝置安裝工程接地裝置施工及驗收規(guī)范 GB50169-2006Electrical installation earthing construction and acceptance standard GB50169-2006建筑電氣工程施工質(zhì)最驗收規(guī)范 GB5O3O32（X）2Building Electrical Construction Quality Acceptance GB5O3O3-2OO2施工工藝流程：Construction

19、 Process:前期準備一電纜溝測量、定位一確定開挖順序一沿灰線切出槽邊輪廓線一分層開挖一修整槽邊 -清底preparation -* cable trench measurements -*excavation order-*cutting contour line along the calcareousness -*stratified excavation -*finishing cable trench edgeclear up前期準備Preparations4.1 技術(shù)準備 technical preparation1）針對本工程特點編審詳細的電纜溝施工作業(yè)指導(dǎo)書，及時組織圖紙會

20、審o Compile particular cable trench construction engineering guide book as per project characteristics and organize promptly drawings joint examination.2）根據(jù)上海市電力建設(shè)工程施工工藝實施細則結(jié)合本工程實際編寫電纜溝施工工藝卡，并組織實 施。Compile construction technique cards according to the Shanghai Municipal Electric Power Construction En

21、gineering Construction Technology Implementation Details and organize its implementation.3）施工人員全面了解電纜敷設(shè)來路、終點及敷設(shè)路徑。Construction workers have comprehensive understanding antecedents, destination, and laying path of laying cables.4.2 材料準備 Material preparation根據(jù)材料計劃采購所有的材料。所有材料規(guī)格型號及電壓等級應(yīng)符合設(shè)計要求，并有產(chǎn)品合格 證。

22、Purchase materials as per the plan. All materials specification models and the voltage level should meet the design requirements and have product certificates.4.3 主要機具準備 Main equipments preparation尖、平頭鐵鍬、手錘、手推車、梯子、鐵鎬、撬棍、鋼尺、坡度尺、小線或20#鉛絲.等。Sharp, flat head shovel, hand hammers, wheelbarrows, ladders,

23、picks, crowbars, steel ruler, slope-fool, small lead wire or 20 #lead wire and so on.4.4 作業(yè)環(huán)境準備 operating environment preparations1）土方開挖前，應(yīng)根據(jù)施工方案的要求，將施工區(qū)域內(nèi)的地上、地下障礙物清除和處理完畢。Prior to earth excavation, clear up obstructions on the ground or underground as per construction plan.2）建筑物或構(gòu)筑物的位置或場地的定位控制線（樁）、

24、標準水平樁及基槽的灰線尺寸，必須經(jīng)過檢 驗合格，并辦完預(yù)檢手續(xù)。The location building or structure and the calcareousness of site positioning control lines （piles）, standard level pile and the groove base size must be tested qualified, and finished prc-scrccning procedures.3）場地要清理平整，做好排水坡度，在施工區(qū)域內(nèi)，要挖臨時性排水溝。Clean叩the site and make d

25、rainage slope. Excavate temporary drains in the constniction area.4）夜間施工時，應(yīng)合理安排工序，防止錯挖或超挖。施工場地應(yīng)根據(jù)需要安裝照明設(shè)施，在危險地 段應(yīng)設(shè)置明顯標志。Arrange night construction procedures properly to prevent wrong dig or super-dug. Install the lighting facilities as needed and set signs in a dangerous location.5）開挖低于地下水位的基坑（槽）時，

26、應(yīng)根據(jù)工程地質(zhì)資料，采取措施降低地下水位，一般要降至 低開挖底面的 0. 5m,然后再開挖。Excavate base pit （groove） below the groundwater level should low groundwater level based on engineering geological data to be lower than 0.5m of the underside, and then excavate.三. 電纜溝施工 Cable Trench Construction電纜溝測量、定位 cable trench measurement and pos

27、itioning1）根據(jù)出線電纜布局和電纜溝開挖現(xiàn)場地形條件確定出電纜溝具體走向。Determine the specific direction of cable trench of outgoing according to layout and excavation terrain conditions.2）電纜溝線路測量包括定線測量、水準測量和直接丈量。The cable trench line measurements include alignment, leveling and direct measurement.定線測量要測定線路的中心線和轉(zhuǎn)角，并應(yīng)測量溝槽與相鄰的永久性建筑

28、物的位置關(guān)系，必要 時應(yīng)在地面上設(shè)立標志。Alignment measurement needs to determine the centerline and corners, and measure grooves and adjacent permanent building location relations. If necessary, set up ground signs.在進行溝槽水準測量時,應(yīng)沿線設(shè)臨時水準點，臨時水準點標高值由控制水準點引測。Conduct leveling should set temporary standard points, whose eleva

29、tion is cited by the control measure.5.1 電纜溝開挖 Cable Trench ExcavationI）開挖路線確定后，需要由管理公司和業(yè)主確認，盡量避免開挖路線下有管線。如確有管線，則 盡量選擇管線較少區(qū)域開挖。The management company and the owner need to confirm excavation line. Try to avoid pipeline route digging and choose less pipeline area on excavating.2）開挖前要認真調(diào)查了解地上地下障礙物，以便開

30、挖時采取妥善加固保護措施。根據(jù)建設(shè)方提供 的現(xiàn)況地下管線圖，進行現(xiàn)場調(diào)查探摸，在每個開挖路線上，每隔30m進行人工開挖試空井， 明確整個斷面有無其它管線，及其管線分布情況，采取有效措施加以保護。Investigate obstructions above and below ground before excavation to take appropriate reinforcement measures. According to the underground pipeline drawings provided by the owner, make site investigation

31、s. At intervals of 30m on each route excavate wells manually to check whether （he entire cross-section has other pipelines and its distribution to take effective protection measures.3）根據(jù)基礎(chǔ)和土質(zhì)、現(xiàn)場出土等條件要合理確定開挖順序。Determine excavation order rationally according to the foundation, on-site soil quality and

32、 other conditions etc.4）開挖時，應(yīng)先沿灰線直邊切出槽邊的輪廓線，然后再分段分層平均下挖。Cut outthe contour line along the calcareousness, and then excavate with sub-layer and subsection.一般粘性土可自上而下分層開挖，每層深度以60cm為宜，從開挖端部逆向倒退按踏步型挖掘。 Generally clay can be excavated from top to bottom by layer with the appropriate depth 60cm. backward excavate from the end by stepping type.碎石類土先用鎬翻松，正向挖掘，每層深度，視翻土厚度而定，每層應(yīng)清底和出土，然后逐步 挖掘。Gravel type soil first use pick to loose, then forward excavate with eac