管架柱基础、设备基础道路-施工方案.docx
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1、管架柱基础、设备基础施工方案construction plan of foundation for pipe rack stand and equipment一、工程概况Engineering summary冷冻站有独立阶形柱基础8个、冷冻机组基础2个、冷冻水泵基础2个、冷冻水箱基础1个、分气缸基础2个、凝水回收器基础1个。The cooling station has 8 absolute stairs-shape stand foundations, 2 freezer set foundations, 2 freezing pump foundations, 1 cooling wate
2、r box foundation, 2 atmolysis vat foundations, and 1 condensation water withdrawer foundation.7030/7031管架阶形柱基础2个、7032管架阶形柱基础4个、7310/7311管架阶形柱基础6个、7313/7314管架阶形柱基础10个、7312管架阶形柱基础4个、7315管架阶形柱基础4个、7316管架阶形柱基础6个、7317管架阶形柱基础2个、7318管架阶形柱基础2个。2 stairs-shape stand foundations for 7030/7031 pipe rack, 4 stai
3、rs-shape stand foundations for 7312 pipe rack, 6 stairs-shape stand foundations for 7310/7311 pipe rack, 10 stairs-shape stand foundations for 7313/7314 pipe rack, 4 stairs-shape stand foundations for 7312 pipe rack, 4 stairs-shape stand foundations for 7315 pipe rack, 6 stairs-shape stand foundatio
4、ns for 7316 pipe rack, 2 stairs-shape stand foundations for 7317 pipe rack, 2 stairs-shape stand foundations for 7318 pipe rack.砼强度等级为C25,基础钢筋保护层不小于40, 底板钢筋为14150双层双向,框架柱基础内预埋4M30螺栓,丝扣长100。阶形柱基础顶,待柱安装后用30厚1:2水泥砂浆找平层填实。The concrete strength grade is C25, the thickness of the reinforcing steel bar pro
5、tection layer for foundation shall be not less than 40, the reinforcing steel bar for motherboard is14150 double layer and bidirection. There are 4M30 bolts being pre-buried in the frame stand foundation and the screw thread is 100mm long. The top of the stairs-shape stand foundations will be smooth
6、ed and filled with 30mm thick 1:2 concrete sand slurry.基础地基承载力特征值:土质地基0.18MPa,岩石地基0.4 MPa。对基础超深部分采用:岩石地基C15毛石混凝土换填,土质地基用砂夹石分层夯实后的地基承载力f180KPa。地质较好的基础不换填,采用100厚的C10素混凝土垫层。The eigenvalue of the foundations bearing capacity is: terrene foundation is 0.18MPa,rock foundation is 0.4 MPa. For deeper part o
7、f the foundation, adopt: rock foundation will be filled with C15 rubble concrete instead, the bearing capacity of terrene foundation will be more than 180KPa (f180KPa) after being tamped with sand and rubble by layers. The foundation with good terrene will not be filled with other materials but adop
8、t 100 thick C10 plain concrete for cushion.二、作业程序work procedure定位放线 搭设防护栏 土方开挖 坚石切割或风镐开凿 探座基坑槽检验C15毛石混凝土换填或砂夹石换填浇C10混凝土垫层钢筋绑扎模板安装预埋铁件安装混凝土浇筑拆模混凝土养护回填夯实环境恢复。Orientation and setting linesetting safety railearthwork excavationfirm rock cutting or air pick cuttingtest basistest foundation groove fill wi
9、th C15 rubble concrete instead or with sand rubble instead irrigate C10 concrete cushionbanding the reinforcing steel bartemplate installationpre-buried iron parts installationconcrete irrigationremove templateconcrete maintancebackfilling and tamping the earthworkenvironment recovering三、基础定位放线及标高测设
10、Pipe orientation and setting line and elevation measurement1、根据基础布景情况,本工程定位座标点采用全站仪进行测量,依据场内导线控制点,测定基础中心的坐标和标高,并在坑槽1米以外做标志。如果是土打入钢筋或木桩钉上小钉后用水泥砂浆保护,如果是混凝土路面打上油漆,保证轴线位置的准确性。One range finder will be used to measure the orientation coordinate points of the project according to the pipe arrangement. Meas
11、ure the coordinate and elevation of the pipe centre lines according to the lead line control point in the site. And make marks along the axial line beyond 1m from the excavate line. Insert reinforcing steel bar or wood pile with nails and reinforce it with concrete sand slurry if the foundation is e
12、arthwork, or paint if the foundation is concrete, and ensure the correction of the axial.2、施工测量中,所测量结果应根据工程测量规范GB50026-93的要求进行校核. 其误差:中心线端点测设在5内,中心线投点10内。During the construction measurement. The measurement results should be reviewed according to GB50026-93. the error is in the allowed scale. The er
13、ror that measured at the ends of the center line is within 5, the error of the center line shaft plumbing is within 10.3、标高测设以现场布置的测量控制网水准点为依据。The measurement and setting of elevation base on the bench mark of the site management measurement control net.4、放线后将测量结果报验,经CWEC专业工程师现场复核,确认无误并签字后才可进行开挖作业。R
14、eport the measuring result for check after paying off. Carry out excavation work after reviewed by the CWEC professional engineer on site, and confirmed and signed.四、基础开挖施工方法 Construction plan for foundation excavation1、开工前办理动火作业票和开工作业票。根据基础大小、埋设深度和边坡系数放出开挖线。Transact the fire work permit and kick-of
15、f permit before starting work. Set the excavation line according to the size of the foundation, burying depth and the gradient of the pipe groove slope.2、基础开挖前在生产装置内两边应搭设2米高防护钢管栏杆和隔板,生产装置外两边搭设1米高防护钢管栏杆隔板。钢管立柱离边口的距离不小于500,栏杆刷红白相间油漆二遍,栏杆上绑扎预制隔板。隔板用303做成20001000方框,拉铆1厚铁皮,铁皮两面刷铁红醇酸底漆一遍,刷绿色醇酸磁漆二遍。Protect
16、ive steel rail and separating board which is 2.0m high should be set around both sides of the groove before excavating in the plant, and which is 1.0m high should be set out of the plant before excavating. The distance between the steel stand column and the groove edge should not be less than 500. T
17、he rail should be painted two twice with yellow and black paint and bound with pre-fabricate separating board. The frames are made of 303 which size is 20001000 and separating boards are made of thick iron sheet which thickness is 1mm. Both sides of the iron sheet are painted with iron oxide red alc
18、oholic acid paint for one time and green alcoholic acid enamel paint for two times.4、生产装置外基础开挖,坚石采用岩石开采切割机(KJ560-10型)加人工开凿的方法;土方开挖采用人工;页岩采用风镐凿打。所有开挖的石方应及时外运至杨柳冲,土方运到原醋酸项目办公楼外西南角处堆放。The excavation of the foundation out of the producing plant will adopt: firm stone will mainly adopt rock extraction cu
19、tting machine (KJ560-10 type) and supplementarily manpower. Earthwork will adopt by manpower. Shale will adopt air pick. All the stonework will be transported to YangLiuChong in time, the earthwork will be transported to the southwest corner beside the original acetic acid item office building.5、装置内
20、基础开挖,基础坚石采用切割机加人工开凿的方法,松石采用风镐开凿,土方用人工开挖。开挖时若遇到地下有砖或砂保护的地方,应立即停工,并汇报CWEC、PMT确认是否有管道或电缆线,若有应待CWEC和YARACO提出处理方案或采取措施后才能进行开挖。The excavation of the foundation inside the producing plant will adopt: foundation stone will adopt rock extraction cutting machine and manpower, and slack rock will adopt air pic
21、k. Stop working and report CWEC or PMT if there is some places that protected by brick or grit when excavating. CWEC or PMT will check whether there is pipe or cable. Excavation may begin after processing scheme or measures have been taken by CWEC or PMT.6、当地下水较小时采用人工排除,地下水较大时采用50潜水泵及时抽排。管沟边坡的坡度根据土质
22、实际情况按规范确定,但不小于1:0.3。开挖断面图如下:Dig a catchment pool (500500500) in the groove before excavating. The pool should be deepened along with the digging of the groove. The water should be removed artifical if it is less and removed by50submersible pump if it is more. The gradient of the slope of the foundat
23、ion is 1:0.3. The sectional drawing of pipe excavation as follows:7、当开挖至设计基底标高后,应对坑底进行保护,组织CWEC和PMT共同进行验槽,以便确保地基持力层的强度与设计图纸要求是否相符,经验槽合格并填写基坑槽隐蔽验收记录签字确认后,才能进行垫层施工。对基础超深部分采用C15毛石混凝土换填。Protect the foundation of the groove and organize CWEC and PMT to check the groove together when the elevation of base
24、 meet the design requirement so as to ensure that the ground force-supporting layer intensity accord with the design drawing. Covering will be carried out after recording the foundation groove secret test and signing to confirm. For deeper part of the foundation, adopt C15 rubble concrete to fill in
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