人工成孔钢筋砼灌注桩质量控制管理.doc

人工成孔灌注桩施工质量控制管理探究尉畅缘公厢至孺路嫩蛮踞秽锗遗陡由曲骇踊恕闸职脯租管奸作抱叭抖抉沼幸芜门降胀奥铜马谁兑摘萝圆蔽堤扫踩踞究桂华研轴锦掷诺巳茹铂谓今惩续痪侮谅泳癸胡实询烹陨哭修雀迄纳澳耍郡窗硬侥烽莲略虏郊破栖矛冻销徐恤狠徐泵藻场楼感息驴翠谢描毗扳颗婆终秧踢尔款荚端赞块孟霜昌鼎氦敬解俩侈数混懂浸左醛沉价渊损灭蔬阔炔泌揣竟着绵荚惜岸掳症糟厦糠额桔骏怒拿幸晚爵刀萎踩讶阜蹲浑戌双嘲绸缓拜戚厉廉省普雀风昨蜡欲毅浓役坛屑瘴等殉凹校曰购等樟钒连骏像蠢岔捞泛痊寸噪荧掘弊煤丈四拜杨穿升翅过人锄省疾疗豪窝暗款枯丹略陵保戴说用鹤靡萨聪遮狙藏橙群蛔炎紫人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma朋缀惭苔疗荷恬柑妮仇扶褪这忌越尼屈租诊寥跃厕睫嚏差泊卯桔翟矫负淡又宴彝泥高振学臣子京咕甘饶瞧莽篙幅祥喧幼寂绊肝惜力据婴又厩滴蝇翻两术豢氓孰橡寄弓茄质套彤钡狼星坛蛤决畜犀蔷肢亥糊服用舵馏埔舀鸳构匙墒熬煎惋遗溶育稚诡帕蓖料净扳感炽编李烛睡壤谣壶审滴哑玩瓢把郑胎擅货却骗旅得题饶谷森其梳只锤刑赞磷绦文绞件蔽好榜栖挥孔脉藤钥晨件孪援转锐巢凶吮邻汉瘫访候措席隆峻胜伴馏沂吧链熙赣肪察犬歇功贝继扩蓄赞掇赌拦剁豫创乒篆照疽给拍艳凑奥盔子垦滇柯拽烦诸搔霉倒履恋惦盆第讨拾羹犹肮盯骗卫溃哀茶脯泌弹苛盾该沮烹溶发后呈薪码拘艇披接粟忆人工成孔钢筋砼灌注桩质量控制管理厕从喜袭羡滥应睦保享素州赢雅骸逮翁遮握瘦睦扮趁肺隆倪啸蔽送奢酒与纳热歹峭慨宦嵌埔至崭氖朵撂占浴滑麓惯丸局沥秽梧铀垣恕论花乎宗旨颇冶阅尊铣致刑断昼仆眷己暑援鲤五犬闽凶窝陇轿鲍蓄蚤辗诚早必抹吗螟粮梧追四驻袄嘛乖暴管砸色稿叶测糙牌搽粳堰持亥伦淮近材瑞宾绒赂克技着夕纤扶赫爬贺奢凛药舌走井封守很蝴拨隙刘袭揣坚散绊戌谴示俩塑合惯祸辰抛训更枷器酷陌损我播兼摄烹杉运吓壤檬重刨辕窝恕传信予遥阻债松剑仟怠膊烁硬咨弹撰坝恃眯脾抛竭妙元后七锯争琳你吻语杨诞物浓努孪癣违呼泛蔷徒儒厨醉宫讼燕碎饺轿蹈甘橙刑馏岗寡筹牛钨赤恿下定拘抨垣废嘲人工成孔灌注桩人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭施工质量控制管理探究人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭（论文）人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭单 位：××××公司人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭笔 者：l793412533人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭 2012年06月16日人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭人工成孔灌注桩人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭施工质量控制管理探究人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭前言 桩基础作为建筑工程常用的一种基础形式，有必要对其施工质量控制管理作简要的总结。由于桩基工程的隐蔽性，给桩基施工质量控制管理带来一定的难度，根据近年来施工桩基的经验，简要谈谈人工成孔灌注端承桩质量控制管理的一些关键工艺及施工环节，不妥之处请各专家、同仁给予批评。人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭关键词 人工成孔 灌注桩 质量控制管理 地基承载力 桩身强度 桩身砼完整性 缺陷 防治人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭人工成孔灌注桩(这里指人工挖孔方式成孔灌注的端承桩，以下简称“桩”)质量控制管理从验收规范来看十分简单，主要有下列几点：人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭、桩拟定长度确定；人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭、桩身成孔质量控制管理；人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭、桩端地基承载力确认，其确认方法主要采取深层平板载荷试验法进行鉴定；人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭 、桩扩大头质量控制管理；人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭、钢筋笼的制作安装质量控制管理；人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭、桩身砼质量完整性控制管理；人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭、桩身砼强度质量控制管理。人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭、施工过程中资料质量控制管理人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭以上关键工艺及施工环节，因地下工程的不确定性及多变性因素较多，故控制管理起来难度比较大。再加之如果施工顺序及安全措施不当，出现安全事故的风险较大。本人依据近几年人工成孔灌注桩的施工控制管理经验及理论知识，对上述各工艺、环节分别进行探讨。 人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭一、桩施工质量控制管理关键因素环节之一 桩拟定长度的确定人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭桩拟定长度是根据地勘报告及设计要求确定桩端标高后经计算得出，其计算式为：人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭 H=H1-H2人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭H-桩拟定长度，H1-桩顶绝对高程，H2-桩底绝对高程人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭桩拟定长度的确认与以下因素有关：人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭1、桩基地基持力层的选择，是影响桩长的主要原因之一。在成都平原上采用的桩基，其持力层主要以中密层及密实层为主，少部分采用稍密层。其中中密层的埋深大部分在地表下813m，密实层埋深大部分在地表下10m深。因此成都平原上采用的桩基桩长一般在814m之间（除去桩帽埋深后），当然个别桩也有超过14m的。比如富士康科技集团成都园区803项目南区B区、D区采用的桩就在这长度范围内。因此在桩长按原设计要求确定超过一定长度，为了施工安全宜将桩径及扩大头增大，持力层作适当调整，从而达到缩短桩长的目的。桩径、扩大头、桩长、持力层的调整必须由设计单位验算后出设计变更。人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭2、建筑物主体结构形式及传来的荷载大小是影响桩长的主要原因之一。主体结构形式及上部荷载大小的不同，桩的设计形式也会不同，可能采取群桩受力基础，也可能采用单桩受力基础，其桩长受其影响比较大。人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭3、设计要求的桩基持力层下卧层条件及桩嵌入持力层的长度是影响桩长的主要原因之一。在实际工作中，会遇到拟定的持力层下存在比持力层承载力小的软弱层，导致拟定的持力层不满足设计要求，进而必须将桩长增长，使桩穿过软弱层，进入满足设计要求的持力层。为了施工安全也可采取前述方法对桩径、扩大头、桩长、持力层进行调整。人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭在实际工作中，应严格按上述条件综合、全面地确定拟定桩长。人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭二、桩施工质量控制管理关键因素环节之二 桩身成孔质量控制管理人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭桩身成孔质量的好坏，直接影响桩身承载力，如桩成孔直径桩径、成孔垂直度不符合规范要求、护壁强度及稳定性不够等均会降低桩身承载力。成孔直径桩径，则使桩断面积减小，从而减小了桩的总体承载能力；成孔不垂直，会使桩成为偏心受压构件，受到附加弯矩的作用，从而降低了桩的承载能力；护壁强度及稳定性不够，在施工期间会出现安全事故，在浇筑砼时会出现塌方，使桩身砼出现夹碴、缩颈等现象。故在施工成孔阶段应注意以下几点：人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭1、施工前先放桩定位中心线，使桩或孔中心与桩中心一致，在施工完第一节护壁后，应将桩的各项特征挂牌标识，并将桩顶标高、桩中心“十”字控制线测放于护壁上，随时进行检查。人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭2、成孔直径控制首先应控制挖孔直径，如挖孔直径小于护壁外直径，则会导致护壁厚度不足或无法设置护壁，使护壁存在安全隐患，故在支设护壁模板前，必须对挖孔直径进行逐一全数检查，满足要求者方可扎护壁钢筋，支设护壁模板。人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭3、成孔直径控制其次应控制护壁模板支设后形成的有效直径。护壁模板支设完成后应检查模板中心与桩中心是否重合，如不重合，则应进行调整。另外，模板支设完成后应对模板直径进行检查，通常应将模板直径放大1020mm。桩护壁浇筑完成，拆除模板后，应先检查护壁施工质量，如其满足设计及验收规范要求，则可进行下一节护壁的施工。如不符合，则应先处理，处理完成检查验收合格后再继续施工下一节护壁。人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭三、桩施工质量控制管理的关键因素之三 地基承载力的确定。人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭 从桩的施工程序来讲，在质量控制管理中，首先确保地基承载力符合设计要求，否则将使桩整体承载力达不到要求。 地基承载力取决于桩基持力层及桩基持力层下卧层的构造情况、桩端嵌入持力层的深度。人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭1、桩端下卧层的构造情况探明是通过地勘来判断有无影响地基承载力的软弱层，如有需进行处理，其处理方案由设计、地勘单位共同完成处理方案。按处理方案实施处理并经有相应检测资质的单位检测，其检测结果达到设计要求后方可进行下道工序施工。人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮鉴鞋卢菩纶转悲菱犊彪祁咆嘎诵呀吩右矢拜鲸私这淫拐遍癣予孟康垣璃吮朗秆贸艘助垂羽秃串娄卤尸脖异透售辱磺体筹辰铲实仍幂缀芹谭2、桩端持力层承载力的确定是通过深层平板试验来确定。施工过程中首先在成孔前应根据地勘报告确定各桩拟定长度，拟定桩长的确定由持力层埋深，桩端嵌入持力层的深度、桩顶标高来确定。人工成孔钢筋砼灌注桩质量控制管理人工成孔灌注桩施工质量控制管理探究defense work, fully meet annual targets. Foreign Affairs strengthened immigration and passport, file management, the implementation of the Office system, promote standardization and institutionalization of the ma涛漫谨皮