填方路基专项施工技术方案.doc

禄劝县皎平渡~马鹿塘三级公路工程挖方路基专项施工方案

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目录

一、第一节工程概述···································1

1、工程概况··········································1

2、沿线自然地理及工程地质条件·························1

二、第二节编制依据····································4

三、第三节工期（进度计划）、人员、机械投入················5

1、计划工期··········································5

2、人员、机械投入·······································6

四、第四节施工准备····································7

1、总公司成立了项目部，实行项目经理负责制·············7

2、施工机械化，设备精良化，管理正规化··················7

3、保证材料运输畅通、保障后勤供给······················7

4、视质量为生命，听从业主指挥，服从监理管理··············7

5、协调处理好地方关系，共建道路畅通···················8

6、加强交通安全管理，保证道路畅通······················8

五、第五节施工方案及施工方法··························8

1、施工前准备··········································8

2、测量放样·····································8

3、场地清理及填前的碾压·······························9

4、填方路基碾压······································9

六、第六节质量保证措施······························12

禄劝县皎平渡~马鹿塘三级公路工程填方路基施工专项方案

七、第七节雨季施工措施································14

八、第八节文明施工措施·······························15

九、环境保护措施····································8

十、安全保证措施····································10

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填石路堤施工专项方案

第一节工程概述

一、工程概况

二、沿线自然地理及工程地质条件

1、地形地貌

路线K0+000～K1+000位于皎平渡镇山间盆地内，K1+000～K10+300沿志作箐河谷北坡展线，K10+300～K14+900沿山间凹地内展布，K14+900～K15+385位于马鹿塘乡山间盆地内，区内山脉走向受构造影响多呈近东西走向，由于河流、洪水溯源侵蚀较严重，沿志作箐河谷坡上南北向的“V”形冲沟发育。区内海拔最高点3140m（尖老包山），海拔最低点2250m（皎平渡盆地）。

不良地质及特殊性岩土

（1）K4+740～K4+770滑坡：位于线路左侧80m处，地形坡度约45～60°。滑坡体主要由残坡积硬塑状粉质黏土和强风化砂岩组成，滑坡体厚约3～10米；滑动带为岩土接合面；滑床为三迭系上统-侏罗系下统白果湾群（T3-J1bg）中风化砂岩。滑坡是在洪水冲刷侵蚀和大气降雨综合作用下形成的。后缘裂缝宽度2～5cm，坡体含水率较高，现状不稳定，尚在蠕变阶段，局部已发生滑动，滑坡滑动方向最大长度约70m，沿路线最大宽度约40m，平均厚约3m，体积约10000m3，为小型滑坡。该滑坡现处于蠕变状态，线路处于滑坡影响范围之外，可不予处理。

（2）K6+035～K6+115滑坡：位于一条现有乡村土路开挖边坡上，位于线路右60m处，地形坡度约55～65°。滑坡体主要由强风化泥岩组成，滑坡体厚约3～10米；滑动带为岩层软弱结构面；滑床为三迭系上统-侏罗系下统白果湾群（T3-J1bg）中风化砂岩。滑坡是在坡脚削方和大气降雨综合作用下形成的。该滑坡主滑方向约256°，属牵引式滑坡，现处于稳定状态。滑坡滑动方向最大长度约50m，沿路线最大宽度约50m