路基工程施工方案范本.doc

一、 路基工程施工
1、 区段划分和力量布置
（1）区段划分。拟成立两个路基施工连队，路基一连负责324+000-325+500段，全长1.5km，路基挖方总量      立方米，填方总量      立方米。路基二连负责K324+000~K321+500段全长2.5km，填方总量度      立方米，全部为借土。
（2）力量布署
详见《投入本工程的人员数量表》和《拟投入本合同工程的主要施工机械设备表》。
2、 土方调配方案
本合同段挖方面     m3，填方面     m3。填缺部分从323+000处借土，运距2-3km。为合理利用和借方，节约工程费用缩短工期，制订了土方调配方案，详见《路基土方调配示意图》。中标后我部在不影响设计要求的基础上，组织有关人员进一步现场测量调查，做好以下几项具体工作：
（1） 重新复核土石方数量；
（2） 对不符合填方填料质量要求的利用方予以废弃；
（3） 将土的压缩率通过试验计算调整；
（4） 调查相邻施工单位有无弃方可取填以保证进度。
3、 路基开挖、填筑施工方案要点
1） 挖土方式
采用综合式开挖，具体做法是：从上而下分层开挖。横挖法、分层、分段纵挖法，根据具体情况灵活变动使用。
横挖法：按挖方地段的一端或两端按横断面全宽逐渐向前开挖。
分层纵挖法：按断面全宽纵向分层开挖。
分段纵挖法：按挖方每个工点分成几段再分层纵向开挖。
施工工艺流程和开挖方式详见附图。
2） 注意事项
① 在任何情况下，都不得乱挖或超挖，更不得采用爆破法开挖。
② 半填半挖或半山坡断面挖土，当坡顶到坡脚垂直高度过高，而且宽度小，无法扩宽工作面，转移和安设挖掘机有困难且不
1, roadbed construction
1, section division and power layout
(1) classified section. Subgrade construction to be set up two companies, foundation row for paragraph 324 +000-325 +500 length of 1.5km, the total cubic meters of foundation excavation, the total cubic meters of fill. Foundation Erlian responsible K324 +000 ~ K321 +500 section full 2.5km, the total degree of cubic meters of fill, all for the use of soil.
(2) forces deployed
See "Input the number of personnel in this project" and the "to be put into the main contract works construction machinery and equipment table."
2 Earthwork programs
Terms of this contract section dug m3, filled side m3. Fill in missing parts from the 323 +000 Department to earth, distance 2-3km. Debit for the rational use and save cost to shorten the duration, developed Earthwork programs, see "Subgrade Earthwork diagram." After winning Division I without affecting the design, based on field measurements were organized to further investigation, do the following specific tasks:
(1) the number of re-review of earth and stone;
(2) do not meet the quality requirements fill filler to be abandoned the use of party;
(3) soil test calculated by adjusting compression ratio;
(4) to investigate whether the adjacent abandoned before construction unit to take to ensure the progress of reclamation.
3, subgrade excavation, embankment construction program elements
1) The excavation method
Integrated excavation, concrete practice: excavation layer from the top down. Horizontal digging method, stratified, sub-vertical excavation method, flexibly change according to the specific use.
Horizontal digging method: by the end of the excavation site or the full width at both ends of the gradual move by cross-section excavation.
Stratified vertical digging method: the full width of vertical stratification by section excavation.
Sub-vertical excavation methods: point by excavation work is divided into paragraphs and then each layer of vertical excavation.
Construction process and the excavation see attached photo.
2) Note
① In any case, are not digging or super-digging, still less excavation by blasting method.
② Cut and Fill or semi-slope section of excavation, when the top to the foot of vertical height is too high, and the width is too small to broaden face, transfer and install without difficulty excavator