利雅得水泥厂石灰石预均化堆场施工方案Riyadh Cement CompanyLimestone Preblending Stockpile Construction Scheme说明：Instructions:该方案编制依据：This Scheme is compiled according to:1、石灰石预均化堆场施工图纸Drawings for limestone preblending stockpile2、总承包合同要求Requirements of General Contract3、施工现场环境、机具，施工经验等Site environment, equipments, and our construction experiences4、建筑施工手册（第四版）Construction Manual (fourth edition)一、工程概况 Brief Introduction of the Project1、工程性质和作用该工程为利雅得水泥厂石灰石预均化堆场，其功能是储存和运输石灰石，建筑工期：土建部分计划92天。
质量要求：土建工程范围是按照业主提供的文件所进行的交钥匙模式施工，在施工的每一步都要业主的质量认可，达到业主的满意。
Nature of the Project and its functionThe Project is the limestone preblending stockpile of Riyadh Cement Company whose function is to store and transport limestone, and the time limit for the foundation is 92 days. Quality requirements: The Civil WorksScope is a Turnkey pattern executed as per the documentations offered by the Owner with each step to be approved by and to the satisfaction of the Owner.2、建筑的结构特征该工程主要由网架基础、堆取料机轨道基础和石灰石运输廊道组成，网架基础由40个钢筋混凝土基础组成的半径为56m的环形基础，基础之间用基础梁连接，供上部施工金属网架。
堆取料机轨道基础是半径为51m的环型钢筋混凝土基础，基础底宽1.2m，高1.3m，设置8道混凝土后浇带以降低混凝土收缩应力，基础上部设计有预埋螺栓，用于堆取料机轨道的安装。
石灰石运输廊道为本工程施工的重点，其主要部位是位于场内的箱体结构进料仓，外部结构尺寸；高11m，宽8m，长40.5m，壁厚1m，底标高-11m，局部-12m，因为是地下工程，施工时要考虑防水，防潮措施。
Structure Characteristic of the ConstructionThe Project consists of net frame foundation, stocking and reclaiming track foundation and limestone belt conveyor. The net frame foundation is made up of 40 reinforced concrete foundations. The foundations will be connected with beams. The foundation of stocking and reclaiming track is a round one of a semidiametre 51 m. The width of foundation is 1.2 m, length 1.3 m. 8 concrete rear casting belts are installed to reduce the contraction stress of the concrete. Pre-embedded anchor bolt is installed on the upper part of the foundation. The limestone conveyor is the highlight of the project, with the bin as its main part, the dimension of which is as follows: height 11m, width 8m length 40.5m, thickness 1m,bottom elevation 11m, part 12m . Water proofing and moisture proofing should be taken into consideration since it is an underground project.二、施工目标 Objective of the Construction1、工期目标计划2005年8月25日开工，2005年11月25日结束，工期92天。
Time limit of the ConstructionThe Construction begins on Aug 25, 2005 and will finish on Nov 25,2005 with the period of 92 days.2、质量目标确保优质工程，达到业主工程师满意。
Goals of QualityQuality is to be of superior and to the satisfaction of the Owner’s engineer.3、安全生产目标坚持：“安全第一，预防为主”的方针，保证一般事故率小于0.15%，工亡率为0，在施工期间杜绝一切重大安全事故。
Objective of SafetySafety and precaution from accidents will always be put in the first place.Common accident rate will be controlled within 0.15% and death rate 0%.Any major safety accident will be shunned.4、文明施工和环保目标强化施工现场科学管理，满足现场环保要求，达到业主工程师满意。
Pursuit of order and environmental protectionIt is our goal to reinforce the scientific management of the site construction,to meet with the environmental protection requirements and to make our Owner and Engineer satisfactory.5、服务目标建造业主满意工程。
Target of our serviceA project to the satisfaction of the Owner三、管理组织机构本工程根据其特点，在现场成立项目经理部，实施总承包管理模式，由项目经理、项目总工程师、项目经济师组成，负责对工程的领导、决策、指挥、协调、控制等事宜，对工程的进度、成本、质量、安全和现场文明施工等负全部责任。
AdministrationBy virtue of the characteristic of this project, the business pattern of General Contracting is brought into effect and the Project Management Department is to be established on the Site which is made up of Project Manager, Project Chief Engineer and Project Economist, who are responsible for the leading, decision-making, superintending, coordinating and controlling of the project, and who are also in full charge of the procedure, cost, quality, safety and orderly execution of the project.四、施工方案1、土方工程1-1、室外自然地坪平整后-0.2m，网架基础土方挖深为1.1m，堆取料机轨道基础土方挖深0.6m，采用机械破碎挖土，如遇回填土石方，需继续挖至原土层，石灰石运输廊道基础挖深11m，土方开挖前，先爆破，后采用反铲分两层开挖，边坡坡度根据岩石性质，层理特性和挖方深度确定，一般为1：0.35—1：1.5，基底根据构筑物尺寸每边留置不少于1m的工作面，挖出的土方用自卸汽车运至场外，并平整好场地。
Outdoor natural leveling -0.2m, net frame foundation excavation depth1.1m. stocking and reclaiming track foundation excavation depth 0.6m.adopt machinery crushing excavation. If meet refilling soil, should dig to the original layer. Limestone conveyor foundation depth 11m, blasting before excavation, sloping is between 1：0.35—1：1.5. 1m of working place is reserved. The excavated soil and rocks are removed by dumper to the outside and leveling is done.1-2、土方回填采用铲运机运土分层回填，每层回填厚度不大于30cm，用蛙式打夯机夯实，并夯实后达到干燥时的密度的确90%，上表面用振动压实机压实地表。