目 录
第一章 人工挖孔桩······················································································································································································································································································· 第一节 人工挖孔桩开挖示意图······························································································································································································································································ 第二节 孔口安全防护················································································································································································································································································ 第二章 第一节第二节第三章 第一节第二节第四章 第一节第五章 第一节第六章 第一节第七章 第一节
泥浆池································································································································································································································································································ 泥浆池平面布置示意图······························································································································································································································································ 泥浆池临边防护 ··········································································································································································································································································· 水上作业平台 ·················································································································································································································································································· 水上作业平台断面图 ·································································································································································································································································· 水上作业平台的安全防护 ························································································································································································································································· 墩柱盖梁施工平台 ········································································································································································································································································· 盖梁施工平台示意图 ·································································································································································································································································· 桥梁通道 ··························································································································································································································································································· 桥梁通道示意图 ··········································································································································································································································································· 桥面临边防护 ·················································································································································································································································································· 桥面临边防护示意图 ·································································································································································································································································· 上下桥面人行斜道 ········································································································································································································································································· 上下桥面人行斜道示意图 ·························································································································································································································································
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第一章 人工挖孔桩 第一节 人工挖孔桩开挖示意图
说明：
1、孔桩开挖过程中，必须有专人巡视各开挖桩孔的施工情
况，，严格做好安全监护。
2、挖孔、起吊、护壁、余渣运输等所使用的一切设备、设
施、安全装置（含防毒面具）、工具、配件、材料和个人 防护用品等，必须经常检查，做好管、用、养、修、换， 确保完好率和使用安全度。
3、当桩径小于（或等于）1.2米时，每次下孔作业前必须 先通风，作业过程中必须保持继续通风。
4、开挖过程中，必须及时施作护壁，第一节护壁应高出孔 口不小于25厘米。
5、挖出的土石方应及时运走，孔口周边2米范围内不得堆 放孔渣及杂物，机动车辆通行时，应做出预防措施或暂 停孔内作业。
6、当桩孔开挖深度超过5米，每天开工前应进行有毒气体检测；遇到不良地质时，应采取相应措施以防塌孔。
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第二节
孔口安全防护
说明：
1、钢管护栏四周密布安全网，红白色油漆间距30厘米。 2、钢管立柱每2米设置一根；护栏横杆设置两道，其中第 一道距地面60厘米，上下横杆间距60厘米。
红白色油漆粉刷，间距300
安全网基础埋入土体300-5002
第二章 泥浆池
第一节 泥浆池平面布置示意图
说明：
1、本图尺寸仅为示意，泥浆池的平面尺寸及容量应根据工程需要确定。 2、泥浆池基础需设置在稳定的地质上，如在城市施工，则应将泥浆池底部硬化并采取措施防止泥浆外溢。
3、在循环池和沉淀池中间隔墙上设空洞以连通两池。
旱地和浅水面钻孔桩泥浆池示意图铁路红线墩台墩台钻孔桩平台泥浆池钻孔桩平台铁路红线施工便道钻孔桩平台钻孔桩平台安全安全防护防护浅水、芦苇地，旱地地方围栏围栏换填片石或毛渣填土筑岛原地面水位面泥浆池3
第二节
泥浆池临边防护
说明：
1、泥浆开挖后立既进行防护，泥浆池采用钢管或竹杆沿泥 浆池四周布置安全防护围网，围网高度1.2米左右，要求所
有泥浆池防护网高度一致。
2、竹杆外面采用蓝色的细网围裹，上面围设小彩条旗，外 挂安全标志牌。 3、钻孔时，钻孔循环泥浆必须在钻孔平台上挖出排放沟，
沟深0.3米左右，沟宽0.3米左右，在灌注前，因排浆量较 大，必须加深或沟侧堆码一定的高度约30厘米高；在不使
用时，将沟填平，必要时可以在钻孔下根桩基循环利用。 4、所有钻机的泥浆管当有损坏时，必须进行修整或更换新 管，保证在施工时泥浆不从损坏处漏出，倒处排放。
5、泥浆池中的泥浆装满后用泥浆车拉运出去，在抽浆时， 泥浆车停放位置处不得出现漏浆现象。
泥浆池临边防护
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