监理细则(质量类)-基坑支护、降水及土方开挖工程

B13-002淮安大剧院工程监监理理实实施施细细则则（基坑支护、降水及土方开挖工程）内容提要：专业工程特点监理工作流程监理工作控制目标及控制要点监理工作方法及措施项目监理机构（章）：专业监理工程师：总监理工程师：日期：江苏省建设厅监制目录第一章、工程概况····································································································-1-第一节、工程概况······························································································-1-一、工程基本概况························································································-1-二、参建单位······························································································-1-第二节、工程规模······························································································-2-一、工程建设规模························································································-2-二、工程投资规模························································································-2-第三节、专业工程概况························································································-2-第二章、监理工作依据······························································································-2-第三章、专业工程特点······························································································-3-第一节、基坑支护及降水工程特点·········································································-3-一、大剧院工程地质及水文情况······································································-3-二、基坑支护及降水形式···············································································-5-第二节、大剧院支护结构施工顺序·········································································-6-第四章、基坑支护工程施工的监理工作流程···································································-6-第五章、基坑支护施工控制要点及目标值······································································-8-第一节、监理控制要点························································································-8-一、钻孔灌注桩施工控制要点·········································································-8-二、双轴深搅桩止水帷幕施工控制要点·····························································-9-三、立柱、立柱桩施工控制要点·····································································-10-四、压密注浆施工控制要点···········································································-10-五、支撑、圈梁及围檩体系施工控制要点·························································-11-六、降排水施工控制要点··············································································-12-七、土方开挖施工控制要点···········································································-12-八、其他设计与施工要求··············································································-13-九、质量检测要求·······················································································-14-十、大剧院深基坑开挖和地下室施工监测控制要点·············································-14-十一、应急措施··························································································-16-第二节、监理控制的目标值·················································································-17-第六章、监理工作的方法和措施·················································································-17-第一节、监理工作方法·······················································································-17-第二节、监理工作措施·······················································································-19-监理实施细则基坑支护、降水及土方开挖工程-1-监理实施细则基坑支护、降水及土方开挖工程第一章、工程概况第一节、工程概况一、工程基本概况1、工程名称：淮安大剧院2、项目名称：淮安大剧院3、建设单位：淮安新城投资开发有限公司4、建设地点：江苏省淮安市5、建筑面积：地上建筑面积为26935㎡,地下建筑面积为2902㎡,总建筑面积为29837㎡。6、剧院等级：乙级7、建筑高度：室外地坪至建筑最高点39.0米，建筑主体高度（主舞台顶）为32.6米。8、屋面防水等级：二级。防水层合理使用年限15年9、建筑结构安全等级：二级。10、耐火等级：耐火等级二级。11、抗震设防烈度：7度。12、结构类型：框架结构。13、建筑物设计使用年限：50年。二、参建单位1、建设单位：淮安新城投资开发有限公司2、勘察单位：江苏省水文地质工程地质勘察院3、设计单位：浙江大学建筑设计研究院4、支护设计：南京南大岩土工程技术有限公司5、监理单位：浙江江南工程管理股份有限公司6、施工单位：江苏通州基础工程有限公司7、检测单位：淮安建筑工程检测中心有限公司监理实施细则基坑支护、降水及土方开挖工程-2-第二节、工程规模一、工程建设规模总用地面积47782㎡,建筑占地面积16528㎡，总建筑面积约25776㎡.地上建筑面积24853㎡，其中剧院10640㎡、办公配套1054㎡、设备用房1126㎡、影视娱乐区4965㎡、文化展示区1445㎡、商业用房（西餐厅、茶餐厅）3396㎡、地面机动车库2227㎡；地下建筑面积923㎡。淮安大剧院由大剧院和影视文化中心组成。大剧院为地上5层、局部（台仓）地下3层，总座位1236座；影视文化中心为地上2层，由影视台娱乐区和餐饮区组成，影视娱乐区包括1间260座影厅、4间100座左右电影厅及1间50座VIP电影厅，餐饮区位于影视厅下部1层。二、工程投资规模大剧院工程初步投资预算为35000万元。第三节、专业工程概况淮安大剧院支护结构形式为排桩加二层砼支撑,周边采用双排双轴深搅桩作为止水帷幕，局部区域采用旋喷桩挡土，基坑内外采用管井进行降水减压。第二章、监理工作依据建设监理的依据是国家工程建设的政策、法规，政府批准的建设计划、规划，设计文件以及依法订立的工程承包合同等。基坑支护、降水及土方开挖工程施工的监理依据如下：1、《建筑基坑支护技术规程》（JGJ120-99）2、《建筑地基基础设计规范》（GB50007-2002）3、《建筑桩基技术规范》（JGJ94-2008）4、《建筑地基与基础工程施工质量验收规范》（GB50202-2002）5、《混凝土结构工程施工质量验收规范》（GB50204-2002）6、《建筑基坑工程检测技术规程》（GB50497-2009）7、《建筑工程施工质量验收统一标准》（GB50300-2001）8、《建筑边坡工程技术规范》（GB50330-2002）9、《建设工程监理规范》(GB50319-2000)10、《建筑工程现场临时用电施工规程》（JGJ46-2005）11、经审查批准的施工图纸和设计技术文件12、监理合同、施工合同监理实施细则基坑支护、降水及土方开挖工程-3-第三章、专业工程特点第一节、基坑支护及降水工程特点一、大剧院工程地质及水文情况1、自然地理和地形地貌场地属暖温带向亚热带的过渡区，四季分明，日照充足，雨量充沛，年平均气温13.5～14.7℃,1月平均气温-1.5～0.5℃，7月平均气温27.0～27.9℃，年无霜期217天，年平均降水量900～1000mm，降水量在时间上分配不均，汛期6~9月占年降水量的70%；平均蒸发量970mm/a,年平均相对湿度为77%。场地地貌类型属废黄河冲积平原，原主要为民房和农田，现为待建用地。受四馆施工堆土和原排水渠影响，地形起伏较大，总体呈东西两侧较中部高，勘探时地面标高7.45m～10.59m（平均值8.62m），相对高差3.14m。场地分布1条呈东南-西北向的排水渠，于2010年5月下旬（外业勘探后期）回填为暗浜，渠底标高5.00m左右，渠底淤泥厚度0.60m左右。暗浜具体位置和分布范围，据地形图、本次测绘和勘探综合确定，详见勘探点平面位置图（S-2）。2、场地工程地质层特征勘察表明，拟建场地勘探深度范围内土体为第四纪全新世冲积粉土、粉质黏土夹粉土、黏土、淤泥质黏土、粉质黏土、粉砂、细砂和黏土夹粉土，中、晚更新世冲湖积黏土和