深基坑土方开挖施工方案(1)

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1、is one of the practical form of values. The so-called values refers to the objective things are of no value and the value of fundamental perspective. Different values, peoples behaviour, attitudes, ways are different. People-oriented focus on human value and reality, we need the broadest masses as v

2、alues. Adhere to people-oriented values, is to make the economy more development, improve democracy, cultural prosperity, and live a happier; is deeply concerned that human development and human values, development of social and human development of rational unified, insisted in the material civiliz

3、ation, political civilization and spiritual civilization in the overall advancement of Socialist civilization to a higher level. Also want to see that persons value is not only meet your needs, also is to meet the needs of others and the community. Adhere to people-oriented, to strongly advocate eve

4、ry community member, serve others, beneficial to the community of people. The so-called Outlook, attitude is on the record, including who, how to create a record of achievements, how to evaluate performance, and so on. What values, what kind of Outlook. Adhere to people-oriented Outlook, is on the p

5、remise of respecting the interests and power of people, creating a popular, warm hearts, steady heart performance, creating serve for one officer, the benefit of achievements, and overall construction of well-off society and promoting the all-round development of peoples performance. Achievement eva

6、luation in both economic accomplishments, take another look at the effectiveness of social progress; changes in both urban and rural change; both hard environment to strengthen and take another look at the soft environment improvement momentum of development at present, depending on the potential fo

7、r sustainable development. Leave people to talk about values are worthless and leave people to talk about Outlook is not what the performance. 4. people responded to the starting point of the question, and replied to questions point. Man is the sum of social relationships. We cannot leave the chichu

8、anyongdu, housing, tourism and entertainment, entertaining, and even certain political, economic, cultural and social environment, and so on. Due to human needs, all walks of life will come into being. People create for their survival, and continue enjoying the results of the construction. Colorful

9、in the transformation of the people of the world, community vitality in the creation of man. Therefore, any work we do, the starting point is human, what are people. Us speed up development, the core of which is to meet the needs of people, including survival needs, emotional needs and self-actualiz

10、ation needs. It should be noted that people are not machines, not the slave of an object, not to be controlled. People have their own personality, has its own personality, has its own dignity. Person in need of care, you need to understand, need to meet. It is said that in the agricultural society,

11、people plant; in industrial society, man is an animal; the information society, return深基坑土方开挖施工方案一编制依据(一)根据中华人民共和国安全生产法、建设工程安全生产管理条例(国务院令第393号)、住建部危险性较大的分部分项工程安全管理办法(建质2009 87号)、韶关市建设局韶关市建设局建筑深基坑工程管理规定(广建200660号),加强对建筑工程中危险点源的控制,避免重、特大事故的发生;(二) 雅和东郊城工程施工设计图;(三)本工程岩土工程勘察报告;(四)建筑地基基础设计规范GB5007-2OO2(五)

12、建筑结构荷载规范 GB50009-2001;(六)建筑基坑工程技术规范 YB9258-97;(七)建筑基坑支护技术规程 JGJ120-99;(八)国家及广东省现行的有效的设计标准、规范、规程和标准图集。二工程概况1、工程概况建设场地位于始兴县红旗路北侧,东西长59.85m,南北长65.77m。西侧是盛世花园在建用地,东侧为往天元大桥主干道,南侧为红旗路。原始地貌为菜地,现场地经开发平整,地势平坦,最高处绝对标高106.45m,最低处绝对标高104.3m。2、基坑工程概况1)基坑采用钻孔灌注桩+钢筋混凝土内支撑作为基坑围护、双轴深搅桩+轻型井点降水作为基坑地下水处理。因钢筋混凝土内支撑及以上土方

13、已由基坑支护施工单位开挖完成,我单位主要施工:从钢筋混凝土内支撑至结构底板垫层底(相对于85黄海高程为-9.8m,下同)的土方开挖工程,方量约35000m3,属深基坑土方开挖,故特编制此专项施工方案。3、工程地质、气象、水文及土层性质分布情况3.1工程地质构造始兴县处于韶关地层东北部,地层发育较齐全,中元古界海州群、张八岭群为区域变质岩系,构成准地台基底;震旦系-三叠系不整合覆盖,以海相沉积为主,各系、组间成假整合或整合接触;侏罗系以陆相碎屑和中酸性火山岩为主,假整合在三叠系层位上;白垩系为内陆盆地,红色碎屑岩为主,局部夹中性、碱性火山岩不整合在白垩系上;第四系以冲积、湖沼相、三角洲相及海相为

14、主,勘探揭示深度范围内层以上属第四纪全新统,层及其以下各层属上更新统。韶关市主要属新华夏系第二巨型隆起带,该构造体系始于震旦纪,结束于三叠系,场地位于韶关市地震活动对场地区影响不大。3.2气象及水文条件韶关市地处珠江中上游,年降水量1059mm,年蒸发量大于1200mm,夏季受热带气流的控制,形成多雨,高温的天气形势,雨水多集中在79月份,占全年降水量的50%左右,冬季干旱少雨,气候适中。浅部地下水类型属潜水,主要通过大气降水补给,以蒸发方式排泄,并随大气降水、季节变化有所升降,埋藏于层土及层土中,在勘探期间测得地下水稳定水位埋深1.86-2.04m,标高约5.50m。地下水位年变化幅度0.5

15、0-3.50m。待建区近35年最高地下水位埋深约1.00m,标高约6.50m;最低地下水位埋深5.00m,标高约4.00m。场地高程一般在7.47-7.91m之间,上部土层透水性较好,设计抗浮水位建议采用天然地面下0.50m,标高约7.00m。3.3土层性质及分布待建场地在勘察深度内所揭露的土层,按其沉积环境、成因类型,以及土的工程地质性质,自上而下分为11个层次。场地内土层分布较均匀。各土层自上而下描述如下:层杂填土:颜色较杂,呈黄褐、灰褐、黑色等杂色,松散,成分很复杂,含有机质、植物根及建筑垃圾、锻造废料等,由粉质粘土、粉土等组成。场区普遍分布,厚度:3.20-3.80m,平均3.53m;

16、层底标高:3.76-4.61m,平均4.23m;层底埋深:3.20-3.80m,平均3.53m。属高压缩性低强度土。层粉土:灰黄色,湿很湿,稍密中密,含云母碎屑,摇震反应中等,低干强度,低韧性灰黄色,很湿,稍密中密,含云母碎屑,摇震反应中等,低干强度,低韧性。场区普遍分布,厚度:3.10-4.00m,平均3.64m;层底标高:0.16-0.95m,平均0.59m;层底埋深:6.90-7.50m,平均7.17m。属中压缩性中等强度土。层粉质粘土夹粘土:灰黄色,可塑,有光泽,高干强度,高韧性,见铁锰氧化物。场区普遍分布,厚度:7.30-10.80m,平均8.88m;层底标高:-9.986.46m,平均-8.29m;层底埋深:14.20-17.80m,平均16.05m。属中压缩性中等强度土。层粉土夹粉质粘土:灰黄色,湿-很湿,中密密实,摇震反应中等,无光泽反应

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