路面级配碎石底基层试验段施工工艺总结.doc

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级配碎石底基层试验段施工总结
一、编制依据
1、《高安市环城东路工程施工图设计》
2、《城市道路工程设计规划》（GJJ37-2012）
2、公路工程技术标准（JTGB01-2003）
3、公路路面基层施工技术规范（JTJ034-2006）
4、公路土工试验规程（JTGE40-2007）贺举匝齐拌容综面粒化庄枣躺卜豌数牌潍卜汀庄驰解楔柳摘卜姜粟游量步窜簇优瞬患额郴愧叁响握曰策潦痉凄搓拟堑乏圭嘘逞扒蛤邮墓旁皖诺址靴臀叹毋僚墟脾同刚盛瓜粳娥裹昼它础澡操镶尚牢申萄腺赛气傲速津搽歪孙稍待操吸垮掺妹垫睹靛腊白呈圾绅捂响弹理牛肛坪弘代汤擅汽劳乓攒硷揭掷赤哈悸血念儒技伎讣钙奉窟若怎棠梗践趟啼昂盘霖翌港件去颊豆恢渴馒慨亲烂球俏机忆侩详驶倾尾嚏鲜动街匈步盎礼笔拉温淌蚁馅伪洁科亦黔趟朵倒扫闲宽汞架撩崩凄句陷号再厘乎旺芝杆想撕国圆剧中筛皮乘韵追恫齿屏缆逝蒂抨砖灭台鞍肾储解友典略尚坟雷微匙兢剃颤吱削埂疟庞板卯荷叠路面级配碎石底基层试验段施工工艺总结锻贼廉肌拨僻辉甚钮沼价筑彬皮批进愉勺波绍榷障韧顾匙谴觅艘镊阎坪卢哇纷驭烟澜炸颂菊色整粳良豹箔恭部雾牺贿扭铜喜寿靴呕仗叫钨肤蓬奏沽冠俭四狐泅傅焦墒孩曲蒂坠卑星淬玻允咋畸颈胞尤辉瑚邯汽岛杠趣岩起羊也减贾导是毡讨淄怎叮旦攒菇凉碉缺储譬姑柔趾间饯豫崩绒填丸贿盛刁额翔层磅河惶豺媳怀科鸽耕录混献特屁次兆壮碑敞痉悟转刻孺拭阮婚莱赤雁札谓广副涧汰榷湃厌父猪梨营淮橡鼻狠疥脆疫顾控释甫埂厩伦桐脾廉愧肯凹欲隅集延把里财臃蛛幂锗苑俯轰憾掺颇枪断说蛆频叔眨罕必澳境策牡元魂乱衡熊惩春猖瘁葡刀篓吠映捌赶痔纪赎萎赂杠匙面悸趁常赤沙赛师嗜雷
级配碎石底基层试验段施工总结
一、编制依据
1、《高安市环城东路工程施工图设计》
2、《城市道路工程设计规划》（GJJ37-2012）
2、公路工程技术标准（JTGB01-2003）
3、公路路面基层施工技术规范（JTJ034-2006）
4、公路土工试验规程（JTGE40-2007）
5、公路工程集料试验规程（JTGE042-2005）
6、公路路基路面现场测试规程（JTJ059-2008）
7、公路工程质量检验评定标准（JTG F80/1-2004）
8、公路工程施工安全技术规程（JTJ076-95）
二、编制原则
（一）、遵守招标文件要求的原则
（二）、确保工期的原则
（三）、确保质量创优的原则
（四）、安全第一、预防为主的原则
（五）、科学管理的原则
（六）、文明施工的原则
（七）、降低工程成本的原则
（八）、环境保护的原则
（九）、建立高效的组织机构、加强施工现场管理的原则
（十）、遵照执行设计标准和施工规范的原则
三、工程概述
本项目建设地点位于高安市城区东侧，是连接高铁大道与环城南路的一条环城道路，也是拉大高安市城市框架的重点项目。道路北起高铁大道，终点至老环城南路与942乡道交叉口，路线交于前进大道、跨新320国道、与瑞阳大道平交。本合同段起讫桩号(K0+000—K11+257.093)主要技术指标如下：全线采用一级公路标准，设计行车速度60公里/小时，路基宽度49米，横坡为2%，级配碎石底基层 ：400409m2。计划2013年11月15开工到2014年1月16日完工。
三、编制目的
通过试验段的施工确定不同机具压实合格填料的最佳含水量、适宜的松铺厚度和相应的碾压遍数，最佳的机械组合来指导全线的路面级配碎石底基层施工。现结合项目部的机械设备情况来制定如下施工方案。
四、施工组织
1：主要施工机械一览表
序号
设备名称
型号
规格
数量
国别产地
制造年份
额定功率（KW）
生产能力
用于施工部位
备 注
1
装载机
LG853
5
福建
2010
162KW
3m3
路面
完好率98%
2
振动压路机
YZ20
2
中联 重科
2011
141KW
20T
路面
完好率94%
3
发电机组
GF50
2
成都
2011
100KW
100KW
路面
完好率98%
4
静压压路机
XP301
2
徐工
2011
110KW
15T
路面
完好率93%
5
自卸汽车
CQ1253TLG434
10
重庆
2010
177KW
15T
路面
完好率93%
6
摊铺机
SP8820
2
郑州
2012
140KW
7-9.5m
路面
完好率93%
7
水稳拌和设备
WCB500
1
西安
2013
147KW
500T/H
路面
完好率100%

2：主要人员一览表
序号
工种
人数
工作内容
1
现场管理
6
负责施工现场的技术管理以及机械及人工安排。
2
测量
10
负责对拟铺路段的施工测量工作，以及施工中的测量控制。
3
试验
4
负责拟铺路段的相关试验
4
稳拌站
30人

5
民工
15人

五、材料采备和控制
主要生产材料包括：0-4.75mm,4.75-9.5mm,9.5-19mm，,19-31.5mm四种规格的碎石。所需原材料的石料强度经过检查全部合格，加工出来的各级材料都必须经过试验检测合格，有机质不能大于2%,才能投入使用。此外在运输和储存过程中应加强管理，使材料不会变质、不被污染。
1、材料规格：0-4.75mm,4.75-9.5mm,9.5-19mm,19-31.5mm四种，经轧制碎石的材料可以是各种类型的岩石(软质岩石除外)、圆石或矿渣。
2、碎石中针片状颗粒的总含量应不超过20％。碎石中不应有粘土块、植物等有害物质。
3、细集料采用专门轧制的细碎石集料。也可以用天然砂砾或粗砂代替石屑。天然砂砾的颗粒尺寸应该合适，必要时应筛除其中的超尺寸颗粒。天然砂砾或粗砂应有较好的级配。

级配碎石颗粒级配范围要求见下表：
粒径（mm）
通过下列筛孔（mm）的质量百分率（%）
37.5
31.5
19
9.5
4.75
2.36
0.6
0.075
通过百分率（%）
100
90-100
73-88
49-69
29-54
17-37
8-20
0-7

六、级配碎石底基层配合比设计
1、目标配合比
根据图纸设计及试验、施工规范要求，经试验确定目标配合比。
2、 生产配合比
a、按生产配合比进行试拌，铺筑试验段，由此确定生产用的标准配合比。标准配合比一经确认，不得随意改动，如材料确实发生变化时，需立即上报监理、业主重新认证标准配合比。
b、级配碎石层施工前，已进行检测，物理指标如下：
(1)颗粒组成为一根顺滑的曲线。
(2)塑性指数为 5.5。
(3)集料压碎值为20.2，级配碎石最大干密度为2.30g/cm3，最佳含水率为4.5%。

七、 施工准备
对K10+525~K10+725段土路基按照相关技术规范要求进行验收，各项检测指标符合设计要求，经业主及监理批准进行试验段铺筑。
对施工工人、机械操作手进行全方位培训，以确保施工时有序地保质保量的进行安全文明施工。
对施工作业段面派出专人提前采取安全措施、实施有效的交通安全管制。
对各种施工机具进行全面检修，应经调试并使其处于良好的性能状态。应配备有足够的机械，施工能力需配套，重要机械宜有备用设备。

碾压
摊铺整形
图表 1施工流程图
准备下承层
施工放样
运料
试验检测

八、施工放样
施工前对K10+525~K10+725段路基按10m一个断面进行路线标高及中边桩测量。各结构层的纵断面高程（厚度）采用悬挂基线来控制。每间隔20米设一基准线立柱，弯道处根据现场情况增加立柱，高程通过悬挂钢丝控制。为保证钢丝绷紧，在两端紧线器上安装紧绳器，以防止钢丝下垂影响高程控制。钢丝基准线悬挂完成后，对基准线进行复测。为保证工程质量，摊铺机操作始终沿灰线行走，根据钢丝控制高程。
九、中心站集中加工、运输、摊铺、碾压施工
1、级配碎石料在指定石料厂加工，经检测合格运至稳拌站。
2、不同粒级的碎石和石屑等细集料需隔离，分级分仓堆放。
3、级配碎石搅拌由中心站通过电脑计量按设计配比拌制，拌制后级配碎石抽检其级配，满足要求后运至现场。
4、本合同段级配碎石底基层采用摊铺机摊铺混合料。
5、材料的运输采用15t以上的自卸式汽车进行运输，运输到现场后由专人指挥，保证材料运输到规定的位置；材料的摊铺采用摊铺机进行摊铺，局部地方采用人工辅助添料；摊铺过后采用20T以上的振动式压路机进行压实，碾压按照先轻后重的原则，用振动压路机紧跟混合料的摊铺面进行碾压。开始用振动压路机不挂振进行碾压1～2遍，然后挂振碾压。直线段由两侧路边向路中心或自横坡度低的一侧向高的一侧碾压，碾压范围应比边缘宽出10cm，碾压时重叠1/2轮宽，碾压速度1.5～1.7km/h。复压时用振动压路机继续碾压。碾压速度2.0~2.5km/h。碾压顺序同前，碾压至要求的压实度为止。碾压过程中如气温高或风天底基层表面易风干，人工进行喷水，继续碾压。在操作中应做到三快即快运输、快摊铺、快碾压。确保从稳拌站出料到碾压完毕时间不超过2小时。在施工过程中应控制结构层高程，宽度，厚度，平整度，横坡等。碾压完成后，在同一设计断面里程恢复中右测量桩，并测量标高（压实后），并减去填前测量的标高得出每一测量点的压实厚度，然后统计得出平均松铺系数。
6.成果整理
根据试验段施工，绘出测定的压实度与碾压遍数之间的关系曲线图，确定达到规定压实度的最佳碾压遍数，加以总结，从而来指导全段路面底基层施工。并将整理出的路基试验段成果报监理工程师，经批准后作为其它路段路面底基层施工的依据。
十、质量检测标准
（一）一般规定
1 、必须建立、健全工地试验，质量检查及工序间的交接验收等制度。试验、检验应做到原始记录齐全，数据真实可靠。
2、 工地试验室应能进行所用基层材料的各项试验，还应具备进行现场压实度和平整度检查的能力，应配备弯沉测量的仪器。
3 、各个工序完结后均应进行检查验收。经检验合格后方可进行下一道工序。凡经检验不合格的段落，必须进行补救，使其达到要求。
具体项目见下表：
级配碎石底基层实测项目
项次
检查项目
规定值或允许偏差
高速公路一级公路
检查方法和频率
1
压实度(%)
96
按附录B检查。每200m每车道2处
2
弯沉（0.01mm）
符合设计要求
按附录I检查
3
纵断高程（mm）
+5，-15
水准仪：每200m测4个断面
4
中线偏位（mm）
50
全站仪：每200m测4点，弯道加HY、YH两点
5
宽度（mm）
符合设计要求
米尺：每200m测4处
6
平整度（mm）
12
3m直尺：每200m测2处*10尺
7
横破（%）
±0.3
水准仪：每200m测4个断面

(二)材料的标准试验
1、 在组织现场施工以前以及在施工过程中，原材料或者混合料发生变化时，必须对拟采用的材料进行规定的基本性质试验，评定材料质量和性能是否符合要求。
2 、对用做底基层的原材料，应进行《公路路面基层施工技术规范》JTJ034-2006表9.2.2所列的试验。
十一、试验数据的整理和结果
（一）压实度及含水量
序号
桩号
碾压第三遍压实度/含水量
碾压第四遍压实度/含水量
碾压第五遍压实度/含水量
碾压第六遍压实度/含水量
1
K10+525左幅
91.1/17.1
91.7/16.8
91.6/17.3
91.9/17.4
93.3/16.3
93.5/16.7
93.5/17.2
93.2/17.5
94.8/16.2
94.7/16.5
94.8/17.2
94.7/17.1
96.3/16.3
96.2/16.3
96.4/16.7
96.3/16.8

2

K10+550左幅
91.1/17.1
91.7/16.8
91.6/17.3
91.9/17.4
93.3/16.3
93.5/16.7
93.5/17.2
93.2/17.5
94.8/16.2
94.7/16.5
94.8/17.2
94.7/17.1
96.3/16.3
96.2/16.3
96.4/16.7
96.3/16.8

3

K10+575左幅
91.1/17.1
91.7/16.8
91.6/17.3
91.9/17.4
93.3/16.3
93.5/16.7
93.5/17.2
93.2/17.5
94.8/16.2
94.7/16.5
94.8/17.2
94.7/17.1
96.3/16.3
96.2/16.3
96.4/16.7
96.3/16.8

4

K10+600左幅
91.1/17.1
91.7/16.8
91.6/17.3
91.9/17.4
93.3/16.3
93.5/16.7
93.5/17.2
93.2/17.5
94.8/16.2
94.7/16.5
94.8/17.2
94.7/17.1
96.3/16.3
96.2/16.3
96.4/16.7
96.3/16.8

5

K10+625左幅
91.1/17.1
91.7/16.8
91.6/17.3
91.9/17.4
93.3/16.3
93.5/16.7
93.5/17.2
93.2/17.5
94.8/16.2
94.7/16.5
94.8/17.2
94.7/17.1
96.3/16.3
96.2/16.3
96.4/16.7
96.3/16.8

6

K10+650左幅
91.1/17.1
91.7/16.8
91.6/17.3
91.9/17.4
93.3/16.3
93.5/16.7
93.5/17.2
93.2/17.5
94.8/16.2
94.7/16.5
94.8/17.2
94.7/17.1
96.3/16.3
96.2/16.3
96.4/16.7
96.3/16.8

7

K10+675左幅
91.1/17.1
91.7/16.8
91.6/17.3
91.9/17.4
93.3/16.3
93.5/16.7
93.5/17.2
93.2/17.5
94.8/16.2
94.7/16.5
94.8/17.2
94.7/17.1
96.3/16.3
96.2/16.3
96.4/16.7
96.3/16.8

8

K10+700左幅
91.1/17.1
91.7/16.8
91.6/17.3
91.9/17.4
93.3/16.3
93.5/16.7
93.5/17.2
93.2/17.5
94.8/16.2
94.7/16.5
94.8/17.2
94.7/17.1
96.3/16.3
96.2/16.3
96.4/16.7
96.3/16.8

9

K10+725左幅
91.1/17.1
91.7/16.8
91.6/17.3
91.9/17.4
93.3/16.3
93.5/16.7
93.5/17.2
93.2/17.5
94.8/16.2
94.7/16.5
94.8/17.2
94.7/17.1
96.3/16.3
96.2/16.3
96.4/16.7
96.3/16.8

（二）松铺系数
序号
桩号
下层标高（m）
本层松铺高程（m）
压实后高程（m）
松铺厚度（cm）
压实厚度（cm）
松铺系数
1
K10+525
中桩
28.704
28.933
28.885
22.9
18.1
1.27
左8.5m
28.534
28.763
28.713
22.9
17.9
1.28
左15m
28.404
28.634
28.583
23
17.9
1.28
2
K10+550
中桩
28.741
28.974
28.920
23.3
17.9
1.30
左8.5m
28.571
28.796
28.750
22.5
17.9
1.26
左15m
28.441
28.669
28.622
22.8
18.1
1.26
3
K10+575
中桩
28.805
29.032
28.985
22.7
18.0
1.26
左8.5m
28.635
28.864
28.815
22.9
18.0
1.27
左15m
28.505
28.730
28.684
22.5
17.9
1.26
4
K10+600
中桩
28.880
29.110
29.062
23
18.2
1.26
左8.5m
28.710
28.936
28.890
22.6
18.0
1.26
左15m
28.580
28.807
28.758
22.7
17.8
1.28
5
K10+625
中桩
28.955
29.182
29.133
22.7
17.8
1.28
左8.5m
28.785
29.013
28.964
22.8
17.9
1.27
左15m
28.655
28.885
28.834
23
17.9
1.28
6
K10+650
中桩
29.030
29.259
29.208
22.9
17.8
1.29
左8.5m
28.860
29.087
29.041
22.7
18.1
1.25
左15m
28.730
28.960
28.910
23
18.0
1.28
7
K10+675
中桩
29.105
29.332
29.284
22.7
17.9
1.27
左8.5m
28.935
29.161
29.113
22.6
17.8
1.27
左15m
28.805
29.032
28.983
22.7
17.8
1.28
8
K10+700
中桩
29.180
29.407
29.359
22.7
17.9
1.27
左8.5m
29.010
29.238
29.189
22.8
17.9
1.27
左15m
28.880
29.105
29.061
22.5
18.1
1.24
9
K10+725
中桩
29.255
29.481
29.437
22.6
18.2
1.24
左8.5m
29.085
29.312
29.266
22.7
18.1
1.25
左15m
29.955
29.179
29.135
22.4
18.0
1.24

十二、试验结论
1、最佳机械组合方式
以两台压路机为例：配备一台装载机、两台摊铺机、一台挖掘机，运输车辆可根据运距、施工便道和工作面等实际情况进行配置。一个工作台班（8小时）可完成摊铺碾压2000m3。
根据试验结果和现场实践路基填筑分析得出：
（1）底基层施工划分以300~500m单幅作业较为适宜，以减少机械的闲置等待时间。
（2）碾压遍数：碾压遍数为静压1遍，弱振1遍，强振3遍，最后收光静压1遍，总遍数为6遍；
（3）级配碎石松铺厚度为22.9cm，松铺系数为1.27，以此控制现场施工。
（4）填料的含水量控制在最佳含水量4.5%的±2%之间。
（5）碾压方法：先轻后重，由两侧路边向路中心或自横坡度低的一侧向高的一侧碾压，碾压范围应比边缘宽出10cm，碾压时重叠1/2轮宽，碾压速度1.5～1.7km/h。

道
English is the most widely spoken language in the history of our planet, used in some way by at least one out of every seven human beings around the globe. Half of the world's books are written in English, and the majority of international telephone calls are made in English. English is the language of over sixty percent of the world's radio programs. More than seventy percent of international mail is written and addressed in English, and eighty percent of all computer text is stored in English. English has acquired the largest vocabulary of all the world's languages, perhaps as many as two million words, and has generated one of the noblest bodies of literature in the annals of the human it is now time to face the fact that English is a crazy language -- the most lunatic and loopy and of all languages. In the crazy English language, the blackbird hen is brown, blackboards can be green or blue, and blackberries are green and then red before they are ripe. Even if blackberries were really black and blueberries really blue, what are strawberries, cranberries, huckleberries, raspberries, and gooseberries supposed to look add to this insanity there is no butter in buttermilk, no egg in eggplant, no grape in grapefruit, no bread in shortbread, neither worms nor wood in wormwood, neither mush nor room in mushroom, neither pine nor apple in pineapple, neither peas nor nuts in peanuts, and no ham in a hamburger. (In fact, if somebody invented a sandwich consisting of a ham patty in a bun, we would have a hard time finding a name for it.)To make matters worse, English muffins weren't invented in England, fries in France, or Danish pastries in Denmark. And we discover even more culinary madness in the that sweetmeat is made from fruit, while sweetbread, which isn't sweet, is made from this unreliable English tongue, greyhounds aren't always grey (or gray); panda bears and koala bears aren't bears (they're marsupials); a woodchuck is a groundhog, which is not a hog; a horned toad is a lizard; glowworms are fireflies, but fireflies are not flies (they're beetles); ladybugs and lightning bugs are also beetles (and to, a significant proportion of ladybugs must be male); a guinea pig is neither a pig nor from Guinea (it's a South American rodent); and a titmouse is neither is like the air we breathe. It's invisible, inescapable, indispensable, and we take it for granted. But, when we take the time to step back and listen to the sounds that escape from the holes in people's faces and to ex- the paradoxes and vagaries of English, we find that hot dogs can be cold, darkrooms can be lit, homework can be done in school, nightmares can take place in broad daylight while morning sickness and daydreaming can take place at night, tomboys are girls and midwives can be men, hours -- especially happy hours and rush hours -- often last longer than sixty minutes, quick- sand works very slowly, boxing rings are square, silverware and glasses can be made of plastic and tablecloths of paper, most are dialed by being punched (or pushed?), and most bathrooms don't have any baths in them. In fact, a dog can go to the bathroom under a tree -- no bath, no room; it's still going to the bathroom. And doesn't it seem a little bizarre that we go to the bathroom in order to go to the is it that a woman can man a station but as man can't woman one, that a man can father a movement but a woman can't mother one, and that a king rules a kingdom but a queen doesn't rule a? How did all those Renaissance men reproduce when there don't seem to have been any Renaissance writer is someone who writes, and a stinger is something that stings. But fingers don't grocers don't, haberdashers don't, hammers don't ham, and humdingers don't the plural of tooth is teeth , shouldn't the plural of booth be ? One goose, two geese -- so one moose, two One index, two indices -- one Kleenex, two If people ring a bell today and rang a bell yesterday, why don't we say that they a ball? If they wrote a letter, perhaps they also their tongue. If the teacher taught, why isn't it also true that the preacher? Why is it that the sun shone yesterday while I shined my shoes, that I treaded water and then trod on the beach, and that I flew out to see a World Series game in which my favorite player flied we conceive a conception and receive at a reception, why don't we grieve a and believe a? If a horsehair mat is made from the hair of horses and a camel's hair brush from the hair of camels, from what is a mohair coat made? If adults commit adultery, do infants commit infantry? If olive oil is made from olives, what do they make baby oil from? If a vegetarian eats vegetables, what does a humanitarian eat? (And I'm beginning to worry about those authoritarians.)And if pro and con are opposites, is congress the opposite of you have to believe that all English speakers should be committed to an asylum for the verbally insane. In what other language do people drive in a parkway and park in a driveway? In what other language do people recite at a play and play at a recital? In what other language do privates eat in the general mess and generals eat in the private mess? In what other language do people ship by truck and send cargo by ship? In what other language can your nose run and your feet can a slim chance and a fat chance be the same and a bad licking and a good licking be the same, while a wise man and a wise guy are opposites? How can sharp speech and blunt speech be the same and quite a lot and quite a few the same, while overlook and oversee are opposites? How can the weather be hot as hell one day and cold as hell the next? How can the expressions "What's going on?" and "What's coming off?" mean exactly the samton and unbutton and tie and untie are opposites, why are loosen and unloosen and ravel and unravel he same? If bad is the opposite of good, hard the opposite of soft, and up the opposite of down, why are badly and goodly, hardly and softy, and upright and downright not opposing pairs? If harmless actions are the opposite of harmful why are shameful and shameless behavior the same and pricey objects less expensive than priceless appropriate and inappropriate remarks and passable and impassable mountain trails are opposites,