积石峡材料设计方案说明文本学位论文.docx
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积石峡材料设计方案说明文本学位论文
说明书目录
一、概述····························································3
(一)任务依据···································································3
(二)设计标准···································································3
1、主要标准、规范····························································3
2、设计标准·································································3
(三)对工程可行性研究报告及初步设计外业勘测验收会议纪要的执行情况···············3
(四)测设简况、设计方案拟定及推荐方案的确定······································4
(五)路线起讫点、中间控制点、全长、所经主要河流、垭口及城镇等·······················4
(六)占用土地情况·······························································4
(七)新技术采用及计算机的运用情况···············································4
(八)下一阶段需要进行试验、研究的项目及解决的问题································4
二、沿线自然地理概况················································6
(一)地形、地貌··································································6
(二)区域地质稳定性评价·························································6
1、地质构造·································································6
2、新构造运动及区域地壳稳定性···············································6
3、区域地壳稳定性···························································6
4、滑坡·····································································6
5、泥石流··································································9
(三)工程地质评价·······························································9
1、工程地质条件·····························································9
2、工程建设可能遭受地质灾害危险性的预测·····································9
(四)水文地质评价······························································10
1、气象与水文·····························································10
2、水文地质条件····························································11
三、路线···························································12
(一)路线布设及主要技术指标采用情况············································12
(二)可行性研究报告所定路线方案的采用及重大变更的论证··························13
(三)方案布置及方案的比选论证··················································13
四、路基、路面及排水················································16
(一)路基······································································16
1、一般路基设计····························································16
2、特殊路基设计····························································16
3、路基防护工程····························································17
4、路基、路面排水工程·······················································17
5、取土场及弃土场··························································18
(二)路面······································································18
1、设计原则································································18
2、设计标准································································18
3、交通组成、交通量及轴载换算···············································18
4、路面结构组合及方案论证··················································18
5、拟定路面结构层厚度及组合方案············································19
6、路面结构层材料级配组成··················································19
五、桥梁、涵洞······················································19
(一)主要技术标准······························································19
(二)主要材料及要求····························································19
(三)推荐线桥涵分布情况························································20
(四)推荐线大中桥桥型方案比较··················································20
六、隧道···························································30
(一)总体设计原则······························································30
(二)设计依据及执行规范························································30
(三)隧道工程概况······························································30
(四)隧址区工程地质条件························································31
(五)隧道主体工程······························································32
(六)交通附属设施······························································38
(七)下一阶段应解决的问题及注意事项············································40
七、路线交叉·······················································40
八、交通工程及沿线设施·············································40
(一)标志······································································40
(二)标线······································································41
九、环境保护·······················································41
(一)设计依据··································································41
(二)公路建设可能对建设区域自然环境、社会环境的影响·····························41
(三)环境保护措施······························································41
(四)运营期间的措施建议························································42
一十、渡口码头及其他工程·············································42
一十一、筑路材料······················································42
一十二、施工方案······················································43
一十三、设计概算······················································43
(一)编制依据·································································43
(二)定额依据和费用标准·······················································43
(三)价格来源·································································44
(四)费率标准·································································44
(五)概算金额及主要材料表·····················································45
说明书
一、概述
黄河积石峡水电站位于青海省海东地区循化县境内,是黄河上游龙羊峡~青铜峡河段梯级开发规划中的第五座大型水电站,电站装机102万KW,坝址位于积石峡出口以上1.2公里处,上距循化县城30km,水库设计正常蓄水位1856m,校核水位1858.3m(黄海高程)。
为保证电站蓄水后,清(水)~关(门)旅游二级公路的通行和运营,需对水库淹没路段进行改建。
改建项目位于循化县清水乡和孟达乡境内。
清关公路改建起点位于原清关旅游公路K0+000,终点(K23+835.9)位于甘青省界(关门)处。
是循化县主要的县级公路,也是通往我省主要旅游景点“孟达天池”的必经之路;同时该公路也是连接甘、青两省的一条重要的出省线路。
(一)任务依据
青公建技字[2006]466号《关于黄河积石峡水电站水库淹没区等级公路改建工程初步设计的委托函》。
(二)设计标准
1、主要标准、规范
《公路工程技术标准》(JTGB01—2003)
《公路路线设计规范》(JTGD20—2006)
《公路勘测规范》(JTJ061-99)
《公路路基设计规范》(JTGD30—2004)
《公路沥青路面设计规范》(JTJ014—97)
《公路水泥混凝土路面设计规范》(JTGD40—2002)
《公路排水设计规范》(JTJ018—97)
《公路钢筋混凝土及预应力混凝土桥涵设计规范》(JTGD62—2004)
《公路桥涵设计通用规范》(JTGD60—2004)
《公路工程水文勘测设计规范》(JTGC30—2002)
《公路工程抗震设计规范》(JTJ004—89)
《公路隧道设计规范》(JTJD70-2004)
《公路工程地质勘察规范》(JTJ064-98)
《公路隧道通风照明设计规范》(JTJ026.1-1999)
《民用建筑电气设计规范》(JGJ/T16-92)
《建筑设计防火规范》(GBJ16-87)
《建筑灭火器配置设计规范》(GBJ141-90)
《给排水工程师常用规范》
《公路工程基本建设项目设计文件编制办法》
《公路工程基本建设项目设计文件图表示例》
2、设计标准
清水至关门公路改建段采用交通部《公路工程技术标准》(JTG01—2003)三级公路技术标准,设计速度30Km/h,路基宽8.5m,路面满铺,桥涵设计荷载为公路—Ⅱ级(大桥为公路—Ⅰ级),小桥涵与路基同宽。
(三)对工程可行性研究报告及初步设计外业勘测验收会议纪要的执行情况
根据黄河积石峡水电站水库淹没区等级公路改建工程《地质灾害危险性评估报告》和黄河积石峡水电站水库淹没区等级公路改建工程《初步设计外业勘测验收会议纪要》,对工可方案进行了局部调整:
1、“工可报告”中拟定:
清关公路起点位于平大公路K132+000(清水湾大桥)处。
工可研审查阶段,经专家审查和论证评价后,建议将清关公路起点定于原清关公路起点。
经实地调查,原清关公路K0+000~K1+450段水库蓄水对路线没有影响,故此段路线完全利用。
2、K1+450~K8+600段路线工可阶段针对马儿坡段布线时采用隧道穿越,经工可审查及初步设计阶段地质钻探情况,马儿坡隧道(长1300米)出口约700米位于滑坡体上,水库蓄水后隧道及出口段路基稳定性差,不可预见因素多。
根据《地质灾害危险性评估报告》,路线采用绕避马尔坡滑坡体的设计方案,在K5+439处一跨黄河,取道乙赛村北面至K7+090穿越隧道(740米),于K8+311.8处二跨黄河接原工可方案。
3、K8+600~K10+800段,为降低工程造价,利用原有公路。
改建部分路线,采用工可推荐方案。
4、K15+192.98~K15+657.02,K15+660~K16+010两段路基位于库区岸边,水库蓄水后有塌岸的可能。
K15+192.98~K15+657.02路线采用纵向桥方案、K15+660~K16+010路线采用隧道方案。
5、K19+100~K21+232.864段,采用塔沙坡短隧道方案。
6、路线其余方案均按“工可报告”执行,对局部路段路线方案进行了优化和进一步比选。
(四)测设简况、设计方案拟定及推荐方案的确定
本项目勘察设计工作主体单位为青海省公路科研勘测设计院,准备工作从2006年12月中旬开始,组建了项目机构,编制测设工作大纲,进行技术资料、测设设备和人员组织的准备工作。
准备工作阶段详细研究了《工可报告》所确定的各类设计方案,并组织主要工程技术人员实地踏勘,对《工可报告》提出的走廊带选择可行的路线方案,并根据1/2000航测地形图,结合路线总体布置,初步进行路线平、纵、横方案论证、比选。
同时对防护、排水及桥涵等构造物设置、路线交叉工程等作了必要的研讨,提出了相应的设计方案。
参加本项目的专业技术人员于2006年12月15日进入工地。
外业调查过程中,严格按照《公路路线勘测规程》、《公路工程地质勘察规范》以及《公路桥位勘测设计规程》等现行规程、规范要求的内容和深度,结合走廊沿线的村镇、重要设施现状及规划、工程地质情况,对路线方案进行深入分析、研究和比较,对路基路面、排水防护、桥梁涵洞、工程经济、占地拆迁、筑路材料等进行了认真、全面的调查工作,并对主要桥梁敷设中桩和桥位桩。
根据《公路工程地质勘察规范》要求,对桥梁在详细的地质调绘基础上,进行了大量的勘探和试验工作。
勘测过程中,严格按照ISO9001标准质量体系中质量控制和质量保证的各项规定,对勘察设计实施有效控制。
院总工办对本项目实行跟踪控制,2007年1月18日至20日,由青海省公路建设管理局主持召开了黄河积石峡水电站水库淹没区等级公路改建工程初步设计外业勘测验收会议,并形成《会议纪要》。
参加会议的有省发改委、省交通厅、省交通咨询中心等部门的专家和代表。
提出了许多合理建议和宝贵意见,根据《会议纪要》,设计阶段进行了必要的补充工作。
(五)路线起讫点、中间控制点、全长、所经主要河流、垭口及城镇等
通过实地测设及对沿线地形、地物以及对循化县路网规划、孟达国家级自然保护区总体规划的调查与了解,确定改建路线的主要控制点如下:
路线总体走向为由西向东方向。
路线起点位于原清关公路K0+000处,途经的主要控制点为清水大庄、清水尕庄、马尔坡、乙赛村、孟达乡、锁通坡、塔沙坡、终点K23+835.9位于甘青省界关门村,路线全长23.8359公里。
(六)占用土地情况
路线测设里程23.8359公里,实际建设里程15.354245公里,占用水浇地57.14亩,旱地28.23亩,荒地237.18亩,果园36.22亩,林地5.63亩,经济林5.69亩,全线共占用土地共计370.09亩。
(七)新技术采用及计算机的运用情况
1、在控制测量中,运用全球定位系统,配合红外光电测距仪进行平面控制测量,保证了精度,提高了工效。
2、采用遥感技术进行工程地质勘探、调查。
3、路线、路基路面、桥涵等从外业勘察到内业设计,从结构分析到图纸绘制,广泛采用CAD技术。
(八)下一阶段需要进行试验、研究的项目及解决的问题
1、由于本项目区域地形、地质构造均非常复杂,应在初步设计基础上继续加强对沿线地质勘探工作,特别是隧道、深路堑、高路堤地质勘探工作,同时对工程地质评价进行更进一步的试验研究和分析。
2、根据本项目的具体情况,水库蓄水后会产生库岸再造,需要对K4+000~K5+100,K15+000~K15+650,原有清大公路K10+300~K14+000,河北村支线K0+000~K0+800等四段路基和K2+720洪沟大桥,K5+439黄河1号大桥,K5+795阿么查大桥,K8+311.8黄河2号大桥等四座大桥的桥台进行稳定性评价,并提供库区最大塌岸宽度。
3、在初步设计测设阶段,路线附近经济作物较少,但随着积石峡水电站建设进度加快,沿线经济作物增长较多,征地及青苗补偿数量与日俱增,赔偿费用相应加大,请建设单位注意协调此项工作。
初步设计及工程可行性规模比较表
序号
项目
数量
单位
工程可行性
初步设计
造价增减
(万元)
平大公路改建段
清水至关门改建段
清水至关门段-支线
工程数量汇总
工程造价汇总
(万元)
平大公路改建段
清水至关门改建段
清水至关门段-支线
工程数量汇总
工程造价汇总
(万元)
工程
数量
工程造价
(万元)
工程数量
工程造价
(万元)
工程
数量
工程造价
(万元)
工程
数量
工程造价
(万元)
工程
数量
工程造价
(万元)
工程
数量
工程造价
(万元)
1
公路等级
级
二级
三级
四级
二级
三级
四级
2
建设里程
km
2.318
14.193
5.884
22.395
2.233
15.354
4.046
21.633
3
路基土方
m3
75420
81.2113
477363.81
650.9893
88485
99.7111
641268.81
831.9117
64698.7
73.7151
398872.5
530.4388
72583.6
75.5934
536154.8
679.7473
-152.1644
4
路基石方
m3
323344.19
1456.8544
72654
303.4914
395998.19
1760.3458
12076.9
48.0931
405613.9
1833.0352
39158.3
151.1237
456849.1
2032.2520
271.9062
5
路基排水与防护
m3
6636.9
205.7517
101530.268
3338.2289
7529.5
214.71
115696.67
3758.6906
7940.3
266.1914
60315.49
1579.4406
7392
208.3682
75647.79
2054.0002
-1704.6904
6
沥青混凝土面层
km2
27.291
109.0074
90.888
569.2082
118.179
678.2156
23.719
101.6384
91.312
556.3483
115.031
657.9867
-20.2289
7
水泥稳定砂砾基层
km2
27.291
84.3537
90.888
331.2888
118.179
415.6425
23.719
53.5701
91.312
334.7319
115.031
388.3020
-27.3405
8
天然级配砂砾垫层
km2
32.348
110.2947
107.976
170.9644
140.244
281.2591
26.959
94.3626
94.672
184.8571
121.631
279.2197
-2.0394
9