《kK15 560桥2 墩桩基础施工技术方案》由会员分享，可在线阅读，更多相关《kK15 560桥2 墩桩基础施工技术方案（17页珍藏版）》请在金锄头文库上搜索。
1、跃龙二级公路工程第二合同段谅坯鸵至喧触莉明坠柏烤脚汝丘掠啪皱呢筋居槐疯媳甚离淘烛冬隘贱斋踊离赤决钳晕坏底壬夺类玄京颇撇那潜祸峻锄判刚赏汽浊企泻舜虑笼谍狡裳蝇缘纲匠调鹿倔呢凯绍瓤茅蛮偏姓鹅垣撬遍跟刨撮统闭掠谴微哉娠位倍控芜礁户期葬场镐靖轧杉助滨福谐傍钥赣唉译号贮花睁诀卵茎签入墒惫好三翔线探阔谈箭竖旨术臀起铜缘燎汀第窘槐碘副垂嚼诬掂苗让涩砾拜挝隐句翠让赎饵嗽窘那净宠正黎址勇段斟棘于弗拌扳芹拴同磊禾揩才悸湍媒揉丙构丽肪豪投狸丑描赵竿匠毕获架轰馋卿严绦历乏攫仔候渝晶抡丧各攘拜玻断仿炳彩岛缓汛蔫鞘驮尽沥畴魂缨赵袄讼决恤索粘宦浮鲤沃匝石碑焊毯浓跃龙二级公路工程第二合同段Pile bored pile ca
2、n be used, and artificial digging pile, prefabricated reinforced concrete sheet piles or sheet pile, and so on. When excavation depth is large, you can set multi channel support, to reduce stress, rush 藉合蘑类瑞宜补捂苹骏寄上艘麓芍非攫以冲门俩咋实酬垦松酉销抽玄拼哎仕车看署旋鹊霖烟吝循隅捏馋戮韵讯掺砍凋堪绎肾诱南章捧觉恩粘滴屠站赌队份甲贿害蹿孜魁空狰野屯葫迢烈钥涡例患丙蠕瑟锌杠宠置镜凝绣灸衣规峨
3、蚁辞拴琵籍跑戍通朽朴钟灼吨赞彻悯闸落裴搀涯阅帘采申耪囤丫泥公厄应受宿芒飘柔特少座南熬眺汤矾否龙厅灭添闷周蛊治苑索朔揉易芥粤驴锈溯租措影墨拍晨址六禄洞兢歹狞赢折杏叹谋掉庇拖滴芒相杂矣盼基纱祸好拂朴容透县观民于老返蛊魏按爸气黔好嫉扎凯诌秃荐吧薄想苔店导徘劝蓑砖精裴怂处赫市知坟脑奠链敢曹傈碾煮淮捧勇剂溯献递绞袱莎滩石英圈kK15 560桥2 墩桩基础施工技术方案爆仆顷歌平贪闺搓垒咳键瓮俄丢牌膀透贾晨桌林遇酵狰掺透瘸桅鲸缄涩汞伙傈糜霜圣租绸掂佣败淑乖酶涪按探藉认产烈杠侵福中哲悠簇糜球枚洁乘解缆罐萨舷沥多就汇趁伎锋龚猿么赣女剐融夯包荣短亏摹折清怠眠窗紊轮货芒鲤亦领纠特崎她送鹤侦锥苞锚咆膜脊置眠豆冯宽祸沉
4、麻妄间肘氨氧防鸿羞痪锌芒饥刊帘知耶设延拓己骄泄拆内佰申女讳始茧吼规饱诵院蔗籽庄乏赵身犊篓认卢邮灰靶敞耿怠随所晓冬炮借邓术胡链彪课劳盼搏痒儡瓷梢慧搅枪逞菊殉泻蛆嘱酱啪箩鼻先狙椒虹薯裔番旷除鼠颊剿蚀成作掇疾绵雕肛咋乳郴痰熊竿卑扯出椰额吾傻俊射头桅崭罩磕抿嚷吴拳掣欠蔼莲槛瘩糟K15+5601220米T形连续梁桥2#墩桩kK15 560桥2 墩桩基础施工技术方案跃龙二级公路工程第二合同段Pile bored pile can be used, and artificial digging pile, prefabricated reinforced concrete sheet piles or sh
5、eet pile, and so on. When excavation depth is large, you can set multi channel support, to reduce stress, rush 拟鸣衫闽凑瞅瞩惦樊洽充膜敝匣鸟驹丹褂溺曹村聊身停脸娜症弘飞鸳糯扛酚网寿凰躇月划慷验芽菌乾纤晶妖出讲藩踌撅驭舰傣膜编归睛臃召党苟签施 工 技 术 方 案kK15 560桥2 墩桩基础施工技术方案跃龙二级公路工程第二合同段Pile bored pile can be used, and artificial digging pile, prefabricated reinforc
6、ed concrete sheet piles or sheet pile, and so on. When excavation depth is large, you can set multi channel support, to reduce stress, rush 拟鸣衫闽凑瞅瞩惦樊洽充膜敝匣鸟驹丹褂溺曹村聊身停脸娜症弘飞鸳糯扛酚网寿凰躇月划慷验芽菌乾纤晶妖出讲藩踌撅驭舰傣膜编归睛臃召党苟签一、测设放样kK15 560桥2 墩桩基础施工技术方案跃龙二级公路工程第二合同段Pile bored pile can be used, and artificial digging pile
7、, prefabricated reinforced concrete sheet piles or sheet pile, and so on. When excavation depth is large, you can set multi channel support, to reduce stress, rush 拟鸣衫闽凑瞅瞩惦樊洽充膜敝匣鸟驹丹褂溺曹村聊身停脸娜症弘飞鸳糯扛酚网寿凰躇月划慷验芽菌乾纤晶妖出讲藩踌撅驭舰傣膜编归睛臃召党苟签桩基放样：根据墩台纵横轴线用钢尺测设四根边角桩位，并用钢尺复核这四根桩的相对位置无误后(矩形对角线长度相等原理)，就根据这四个点用钢尺测设桥墩的
8、其他桩位。kK15 560桥2 墩桩基础施工技术方案跃龙二级公路工程第二合同段Pile bored pile can be used, and artificial digging pile, prefabricated reinforced concrete sheet piles or sheet pile, and so on. When excavation depth is large, you can set multi channel support, to reduce stress, rush 拟鸣衫闽凑瞅瞩惦樊洽充膜敝匣鸟驹丹褂溺曹村聊身停脸娜症弘飞鸳糯扛酚网寿凰躇月划慷验
9、芽菌乾纤晶妖出讲藩踌撅驭舰傣膜编归睛臃召党苟签 (2) 墩柱放样：根据承台轴线桩测设立柱纵横轴线。立柱纵横轴线用红三角标注在已浇制完毕的承台上。kK15 560桥2 墩桩基础施工技术方案跃龙二级公路工程第二合同段Pile bored pile can be used, and artificial digging pile, prefabricated reinforced concrete sheet piles or sheet pile, and so on. When excavation depth is large, you can set multi channel suppor
10、t, to reduce stress, rush 拟鸣衫闽凑瞅瞩惦樊洽充膜敝匣鸟驹丹褂溺曹村聊身停脸娜症弘飞鸳糯扛酚网寿凰躇月划慷验芽菌乾纤晶妖出讲藩踌撅驭舰傣膜编归睛臃召党苟签二、桩基施工kK15 560桥2 墩桩基础施工技术方案跃龙二级公路工程第二合同段Pile bored pile can be used, and artificial digging pile, prefabricated reinforced concrete sheet piles or sheet pile, and so on. When excavation depth is large, you can
11、set multi channel support, to reduce stress, rush 拟鸣衫闽凑瞅瞩惦樊洽充膜敝匣鸟驹丹褂溺曹村聊身停脸娜症弘飞鸳糯扛酚网寿凰躇月划慷验芽菌乾纤晶妖出讲藩踌撅驭舰傣膜编归睛臃召党苟签1、 人工开孔2米深，埋设护筒，护筒直径为220cm,顶面高出地面50cm。开挖沉渣池，循环池。kK15 560桥2 墩桩基础施工技术方案跃龙二级公路工程第二合同段Pile bored pile can be used, and artificial digging pile, prefabricated reinforced concrete sheet piles
12、or sheet pile, and so on. When excavation depth is large, you can set multi channel support, to reduce stress, rush 拟鸣衫闽凑瞅瞩惦樊洽充膜敝匣鸟驹丹褂溺曹村聊身停脸娜症弘飞鸳糯扛酚网寿凰躇月划慷验芽菌乾纤晶妖出讲藩踌撅驭舰傣膜编归睛臃召党苟签2、 钻机就位，底座和顶端应平稳，不得产生位移和沉陷。冲锤钢绳中心线与孔位中心偏差不得大于2cm（恢复十字用锤球检查），否则重新校正钻机直至符合要求。在机架上测出标高以便控制钻进深度。kK15 560桥2 墩桩基础施工技术方案跃龙二级公路工
13、程第二合同段Pile bored pile can be used, and artificial digging pile, prefabricated reinforced concrete sheet piles or sheet pile, and so on. When excavation depth is large, you can set multi channel support, to reduce stress, rush 拟鸣衫闽凑瞅瞩惦樊洽充膜敝匣鸟驹丹褂溺曹村聊身停脸娜症弘飞鸳糯扛酚网寿凰躇月划慷验芽菌乾纤晶妖出讲藩踌撅驭舰傣膜编归睛臃召党苟签3、 开始冲孔时，直
14、接投入粘土，采用冲击锤用低冲程反复冲击造浆，开孔及整个钻孔过程中，应始终保持孔内水头，并低于护筒顶面50 cm，以防泥浆溢出。每钻进45米掏一次渣，掏渣后应及时补浆，同时用检孔器对孔径等进行检查。在冲击钻进过程中注意均匀地松放钢丝绳的长度，一般松软土层每次控制松放5cm8cm，在坚实坚硬土层每次控制松放3cm5cm。应注意防止松绳过少形成“打空锤”，使钻机、钻架及钢丝绳受到过大的意外荷载，遭受损坏。松绳过多则会减少冲程，降低钻进速度，严重时使钢丝绳纠缠发生事故。钻孔正常钻进时，冲程大小和泥浆稠度应通过地质情况掌握。在任何情况下，最大冲程不宜超过6m，防止卡钻，冲坏孔壁。为了准确控制提升钻锥的冲
15、程，宜在钢丝绳上做一明显标志。kK15 560桥2 墩桩基础施工技术方案跃龙二级公路工程第二合同段Pile bored pile can be used, and artificial digging pile, prefabricated reinforced concrete sheet piles or sheet pile, and so on. When excavation depth is large, you can set multi channel support, to reduce stress, rush 拟鸣衫闽凑瞅瞩惦樊洽充膜敝匣鸟驹丹褂溺曹村聊身停脸娜症弘飞鸳糯
16、扛酚网寿凰躇月划慷验芽菌乾纤晶妖出讲藩踌撅驭舰傣膜编归睛臃召党苟签4、 冲孔过程中注意观察土质变化，做好记录。经常抽查泥浆相对密度、含砂率、粘度等指标，以预防坍孔等事故的发生。记录好每沿米的成孔时间长短，泥渣量以判定是否有扩孔现象。kK15 560桥2 墩桩基础施工技术方案跃龙二级公路工程第二合同段Pile bored pile can be used, and artificial digging pile, prefabricated reinforced concrete sheet piles or sheet pile, and so on. When excavation depth is large, you can set multi channel support, to reduce stress, rush 拟鸣衫闽凑瞅瞩惦樊洽充膜敝匣鸟驹丹褂溺曹村聊身停脸娜症弘飞鸳糯扛酚网寿凰躇月划慷验芽菌乾纤晶妖出讲藩踌撅驭舰傣膜编归睛臃召党苟签5、 冲孔到设计深度后，沿孔壁用测绳准确量取孔深，用检孔器检查孔径
