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88_基坑钢板桩支护方案.pdf

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1、1/13 基坑钢板桩支护方案第一节工程简况本工程为 XXXXXX，高度 3700，顶标高-2.45，地下室顶面覆盖2000高土层，建设方拟在上部做圆形广场及旱地喷泉。地下室基坑深约5.1M，原采用放坡大开挖方式，基坑面标高约-1.82M，基坑底标高约-6.92M。当开挖至-4.3M 左右时，基坑脚部出现流砂涌动，无法正常开挖，经与甲方及监理单位研究，决定采用钢板桩进行支护，以达到止水挡土的目的。第二节编制依据一、XXXXXX工程 XXXXXX设计图纸；二、XXXXXX编制的 XXXXXX 岩土工程勘察报告；三、XXXXXX工程冲孔桩施工记录；四、同济大学出版社1991年 11月第一版高层建筑施

2、工手册；五、建筑地基基础工程施工质量验收规范GB50202-2002）；六、锚杆喷射混凝土支护技术规范GB50086-2001）；工程地质条件根据地形勘察报告及冲孔桩施工记录，该场地范围内地层自上而下分为：杂填土层、淤泥土层、粉细矿层、强中）风化砂岩层和微风化岩层。一、杂填土层：层厚约1.02.0m；二、淤泥土层：层厚约0.51.5m；三、粉细矿层：层厚约2.57.0m；四、强中）风化岩层：层厚约2.02.3m；2/13 五、微风化岩层。第四节钢板桩支护设计思路及要点根据本工程场地地质情况特点，本工程钢板桩主要作用是为了隔绝-4m-12m砂层地下水流入基坑，同时支护边坡防止流砂涌动，起到支护

3、边坡的作用。设计要点如下：一、采用拉森式 U）型钢板桩，桩长710m；二、钢板桩穿过砂层，进入强支护入土深度h：3.5m；b基坑深度t：2.6。c土体平均密度r：16KN/m3；d地面荷载q：0；e钢板桩长度L：6m；f软土内聚力C：5Kpa；h 软土内 mc 摩擦角 0：8oi 角支撑钢梁220，长度约 8.5m；j锚杆抗拔力 f：150KN/g 钢板桩抗弯强度(抗森：182Mpa。2、基本力学数据计算：文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10

4、G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9

5、 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5

6、X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y1

7、0 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C

8、3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B

9、6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:

10、CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B63/13 a)Ka=tg2(45-0/2=tg41=0.72。b)Kb=tg2(45+0/2=tg249=1.323。c)h0=2c/r=25/16=0.72m。d)Ea1/2(KaHa2=1/20.7563.52=4.63Kpa。e)Ep=1/2(KpHp2=1/21.3233.52=8.1Kpa。f)钢板桩桩身最大弯矩Mmax=EahaSEphpS=E

11、ahaHLEphpHL =3.92KNM ha=1/3(Hho=0.93m,hp=0.39g)桩身最大剪力 Qmax=EahaHLEphpHL。h)桩顶最大水平位移Umax=QH/=6.6mm。i)钢板桩身应力强度=QH=12Mpa。j)钢支撑长径：38.6。3、结论：a)土体作用于桩身的应力强度 =12Mp，钢板桩支护不会折断。b)桩顶最大位移 Umax：6.6mm，符合安全规范。c)钢支撑 L/D=38.6120 的规范要求，技术可行。文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5

12、D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10

13、ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M

14、8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文

15、档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL

16、8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8

17、A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 H

18、T7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B64/13 第六节施工组织计划本工程采用工程经理负责制管理，由工程经理全权负责本工程的机械、材料和劳动力的组织及施工，工程管理架构如下：第七节施工机械及设备机械参数机械名称型号数量功率使用部位液压振动锤MIL-2000 1台安装于挖掘机上打钢板桩履带式单斗挖掘机W-1001 1台1M3吊液压振动锤

19、汽车式起重机1台30t 用于拨钢板桩震动拔桩机1台45KW 拨钢板桩履带式单斗挖掘机W-1001 1台1M3挖槽、配合桩机作业及修路气割机1套切割钢板桩电焊机XD1-2002台2KVA 钢板桩接长经纬仪J21台测量放线水准仪S3-d 1台抄平、沉降观测空压机V-6/8 1台37KW 协助打管桩压力灌浆潜孔冲击器YQ80 1台1.99KW 打管锚工程经理1人技术负责人1 人施工员 1 人质安员 1 人电工 1 人机长 2人焊工 1 人技术工人 10 人文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10

20、ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M

21、8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文

22、档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL

23、8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8

24、A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 H

25、T7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5

26、D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B65/13 砂浆搅拌机250L 1台4KW 锚杆注浆泥浆泵BW-150/15 1台5.5KW 锚杆压力灌浆第八节土层锚杆施工1、打入钢管。沿基坑护坡周边每隔56M 打一根 48 钢管，钢管尖端及前部开有若干小孔，以利于清孔及注浆，钢管向下与土面成15夹角，通过空压机送风用潜孔冲击器来把钢管打入土层。2、压力灌浆。压

27、力灌浆为土层锚杆施工的重要工序。作用是：、形成锚固段。将锚杆锚固在土层中；、防止钢拉杆腐蚀；、充填土层中的孔隙和裂缝，改善土质。灌浆采用二次灌浆法。第一次灌浆采用水泥砂浆。第二次灌浆用水泥浆，在第一次灌浆的浆液初凝后进行。土层锚杆灌浆材料及其配合比材料名称灌浆425 普通硅酸盐水泥水砂粒径 0.5mm）早强减水剂第一次灌浆1 0.4 0.3 0.035 第二次灌浆1 0.4 0.035 第九节钢板桩施工一、材料选择。采用拉森式 U 型）钢板桩。型号尺寸 mm）截面积A 单根cm2）重量 kg/m）惯性矩 Ir 截面抵抗矩宽度 b 高度 h 腹板厚 t1翼缘厚 t2单根每 M 宽单根cm4）每

28、 M 宽cm4/m）单根cm3）每 M 宽cm3/m）鞍 IV 型400 18/0 15.5 10.5 99.14 77.73 193.33 4.025 31.963 343 2043 二、钢板桩检验。文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10

29、ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M

30、8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文

31、档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL

32、8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8

33、A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 H

34、T7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5

35、D5Y10 ZA1C3M8E8B66/13 由于本工程为钢板桩用于基坑的临时支护和止水，故不需进行材质检验而只对其做外观检验，以便对不符合形状要求的钢板桩进行矫正，以减少打桩过程中的困难。外观检验包括表面缺陷、长度、宽度、厚度、端头矩形比、平直度和锁口形状等内容。检查中要注意：、对打入钢板桩有影响的焊接件应予以割除；、有割孔、断面缺损的应予以补强；、若钢板桩有严重锈蚀，应测量其实际断面厚度，以便决定在计算中是否需要折减。原则上要对全部钢板桩进行外观检查，对不符合要求的钢板桩需进行矫正。三、钢板桩吊运及堆放装卸钢板桩宜采用两点吊。吊运时，每次起吊的钢板桩根数不宜过多，并应注意保护锁口免受损伤。吊

36、运方式有成捆起吊和单捆起吊、钢筋捆扎、专人指挥。钢板桩堆放的顺序、位置、方向和平面布置应考虑到以后的施工方便，并按型号、规格、长度施工部位分别堆放，堆放的高度不宜超过2M。四、施工工艺流程基线确定定桩位钢板桩施打围檩、拉杆、角撑土建施工拔桩五、操做方法、基线确定：施工员的在基坑边龙门架上定出轴线，留出以后施工需要的工作面，确定钢板桩施工位置。、定桩位。按顺序标明钢板桩的具体桩位，洒灰线标明。、钢板桩施打。采用单独打入法，即吊升第一支钢板桩，准确对准桩位，振动打入土中，使桩端透过砂层进入不透水的强中）风化岩层。吊第二支钢板桩，卡好企口，振动打入土中，如此重复操作，直至基坑钢板桩帷幕完文档编码:C

37、L8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G

38、8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9

39、HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X

40、5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10

41、 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3

42、M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6

43、文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B67/13 成。钢板桩施打时，由于钢板桩制作本身的误差、打桩时的偏差、施工条件的限制，使帷幕的实际长度无法保证按钢板桩标准宽度的整数倍，故此钢板桩帷幕最终封闭合拢有相当难度。调整的办

44、法，一般有采用异形钢板桩来闭合或通过调整帷幕轴线用标准桩实现闭合。由于本工程钢板桩墙精度要求不高，故采用后一方法来实现转角的闭合，即在转角处两侧各以10 根钢板桩的宽度来调整轴线实现闭合。如出现部分钢板桩长度不足，可采用焊接接长，一般用鱼尾板焊接法。接长时避免相邻两桩接头在同一深度，接头位置应错开1M 以上，且宜间隔放置打桩。、围檩、拉杆、角撑为加强钢板桩墙的整体刚度，沿钢板桩墙全长设置围檩，围檩用槽钢或角钢组成，通过拉杆固定于原已打好的钢管锚杆上，拉杆由两根25 钢筋组成，焊接于钢管锚杆上。为稳妥起见，在钢板桩墙五个转角上另用槽钢或角钢做角撑。如右图所示。、钢板桩拔除。土建工程完毕后即进行钢

45、板桩的拔除。由于基坑较大，且周边街头公园及B1B4 栋的位置影响，无法太靠近基坑操作，故须采用较大型的吊车与振动锤配合来进行钢板桩的拔除，即利用振动锤产生的强迫振动扰动土质，破坏钢板桩周围土的粘聚力以克服拔桩阻力，依靠附加起吊车的作用将桩拔除。钢板桩拔除后留下的桩孔，必须即时做回填处理，回填一般用挤密法或填入法，所用材料为中砂。第十节基坑监测措施文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6

46、文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:C

47、L8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G

48、8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9

49、HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X

50、5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10 ZA1C3M8E8B6文档编码:CL8R10G8A5U9 HT7Z5X5D5Y10

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关键词：: 88 基坑钢板支护方案

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