桥梁基础及下部构造技术施工方案(1).doc
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1、step shape, control of step size, set aside a decoration project, to run up and down the stairs the same faade stepping angle. 4.4 reverse triangular plate is in the Middle bench, reinforcement time side boards. Reverse triangular plates consist of a number of triangular pieces of wood nailed to the
2、 wood, and two triangular wood blocks high and wide of the right angle equal to step on a side, timber section for 50mmx100mm and third corner Board with bench support cross-ridged fixed between the side plates. 4.4 (1) expansion joints template support set: first support good expansion joints side
3、of wall template (wall sides are for multilayer Board), stay its concrete pouring Hou, will its template demolition, again support another side wall template, but this wall by expansion joints side with 200 thick high-density squeeze plastic poly benzene Board for template, another side for multilay
4、er Board, expansion joints North-South State surface the with 200x200 thick multilayer Board box for across die, to control expansion joints of upper and lower vertical degrees. 4.4 (2) treatment of construction joints: this construction is not the principle of construction joints, such as construct
5、ion joints, subject to the following requirements: construction joint in beam and plate with steel mesh or wood-mode blocked. Attention to the retention of construction joints must be perpendicular to the axis of the beam and plate, shall remain oblique Cha. Before the next concrete pouring, constru
6、ction joints of concrete should be cutting hair, and loose stones should be left floating pulp, water and moist. 5 construction considerations 5.1 template installation, upper and lower column formwork system should be installed on the same vertical line. 5.2 templates on each floor after installati
7、on, should release agent brush template. 5.3 for the joints is greater than 2mm, paste the crack tape. 5.4 no hard hit when stripping pry, to prevent damage to the template and the pouring of concrete. 6 quality standard for reached concrete of standard, we according to concrete structure engineerin
8、g construction quality acceptance standard (GB50204-2002) developed has internal control standard, as Xia by shows: concrete quality internal control standard project allows deviation national standards internal control standard axis location 5 3 end of die Shang surface elevation 5 3 adjacent two B
9、oard surface level poor 2 2 surface flat degrees 5 3 pre buried plate center line location 3 3 pre buried tube, and reserved hole center line location 3 3 pre buried bolt center line location 2 2 Exposed length +10,0 +10,0 reserved hole center line position 10 10 section size +10,0 +10,0 reinforcing
10、 the centerline location 5 5 exposed length +10,0 +10,0 die frame support must have sufficient strength, rigidity and stability, supporting parts must have sufficient support area. Template size is accurate, seam marks neat and orderly. Structures of yin and Yang founder straight, joint width shall
11、not exceedWe will continue to improve the companys internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight
12、role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication zer
13、o resistance. To constantly perfect ERP, and BFS+, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant
14、 role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS+, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure zero. To
15、strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career he
16、alth medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the bu
17、siness of zero risk. To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should
18、; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. To further st
19、andardize trading, and strive to achieve according to law, standardize and fair. Innovation of performance management, to ensure that potential employees zero fly. To strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve perf
20、ormance management. To further quantify and refine employee standards . Work, full play party, and branch, and members in five type Enterprise construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening four good leadership construction, full pl
21、ay levels cadres in enterprise development in the桥梁基础及下部构造技术施工方案1 编制依据1.1充分考虑并做好水土保持与环境保护工作。1.2确保建设单位要求的阶段性工期和总工期,根据工程特点优选先进可行的施工方案。1.3临时工程本着临永结合、节约用地、满足施工、精打细算的原则安排。1.4施工总体计划文件。 1.5承德至赤峰高速公路招标文件及投标文件,工程承包合同。1.6工程所在地区的勘察分析和调查分析。2 编制范围2#混凝土搅拌站建设:HZS75拌机安装、施工场地硬化、砂石料仓布置、变压器安装、站内排水设施、站内道路布置等。钢筋加工棚:场地硬化
22、、顶棚安装。3 工程概况及施工组织部署3.1 工程概况小井大桥位于河北省承德市境内桥梁设计中心桩号K83+150,桥位区属于丘陵冲沟地貌,大部分位于原耕地区,地形相对较平坦。桥位处地表覆盖厚度较小,植被发育较差。桥位区区域地质稳定,无影响桥位稳定的不良地质现象。表层粉质粘土及圆砾,厚度为6-12m;下层片麻岩作为嵌岩层。本桥全长427m,桥型总体布置为430530530三联预应力砼T梁,桥梁轴线与路线法线右偏角75。下部采用嵌岩桩基础,柱式墩。全桥墩台基础均采用嵌岩桩基础,桩径为1.8m,总计95根,累计桩长2076m,最大桩长24m,最小桩长13m,钻孔桩基础采用C30水下混凝土,墩柱、盖梁
23、、系梁、台帽、背墙、耳墙、承台、侧墙顶等采用C30混凝土。下部结构0#台采用肋板台,14#桥台采用柱式台,桥墩采用柱式墩,墩台采用桩基础。桥梁上部为预应力砼T梁,每孔左右幅梁各7片。桥面净宽33.5米,2%双向横坡。桥面铺装采用10cm沥青混凝土+12cmC50混凝土桥面现浇层,桥面现浇混凝土顶设防水层。小井大桥作为本合同段的重点、形象工程之一,其工程进度的快慢将影响到全线施工进度的总体形象。因此该桥施工的重点主要为施工前的设备进场及施工场地的合理布置,且桥台基础的开挖与施工高峰期人员安排及设备的数量配置也将作为我部重点工作之一。3.2施工组织部署1)、人员组织计划配置:为了保证本桥的质量及施
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