土方工程試驗(yàn)段施工方案.doc

土方工程試驗(yàn)段（K31＋945~K32＋189.6）
施　工　方　案
一、 簡(jiǎn)述
第五標(biāo)路基土方工程試驗(yàn)段，經(jīng)項(xiàng)目部現(xiàn)場(chǎng)實(shí)地考查后，選擇在二工區(qū)K32＋189.6~~K32+485段進(jìn)行，該段靠近3＃取土坑，，可以就近取土。
施工流程安排
原地面高程復(fù)測(cè)　　 路基、取土坑清表　　 填前壓實(shí)　　土料開采、運(yùn)輸、填筑、壓實(shí)　　　總結(jié)施工參數(shù)　　　報(bào)監(jiān)理工程師批準(zhǔn)后作為土方填筑施工的控制依據(jù)。
二、 具體施工組織                                                                                                                                                 
1、原地面高程復(fù)測(cè)
對(duì)業(yè)主、監(jiān)理提供導(dǎo)線控制點(diǎn)和高程基準(zhǔn)點(diǎn)，使用全站儀和自動(dòng)安平水準(zhǔn)儀進(jìn)行聯(lián)測(cè)，按JTJ061－99等相關(guān)技術(shù)規(guī)范的測(cè)理精度要求，校核各導(dǎo)線點(diǎn)的坐標(biāo)和水準(zhǔn)點(diǎn)的高程，若復(fù)測(cè)誤差不符合精度要求時(shí)，報(bào)業(yè)主、監(jiān)理進(jìn)行補(bǔ)測(cè)，重新校核合格后，方可作為恢復(fù)定線測(cè)量的依據(jù)。
利用校核合格并經(jīng)監(jiān)理批準(zhǔn)使用的控制點(diǎn)，采用全站儀極坐標(biāo)法恢復(fù)路基中線，根據(jù)設(shè)計(jì)圖紙民尺寸及施工規(guī)范要求，放出路基中線。之后復(fù)測(cè)原地面高程并報(bào)監(jiān)理工程師復(fù)核。
2、清表
監(jiān)理工程師復(fù)核原地面高程之后進(jìn)行清表工作。
清表深度20－30cm，將上層表土（雜草、淤泥及作物根系）推至路基右側(cè)攤平，將下層表土作為路基左側(cè)段便道利用
Earthworks test section (K31 +945 ~ K32 +189.6)
Facilities work plan was
A brief account of
Fifth standard test section subgrade earthwork, site field visits by the project department, choose the second work area K32 +189.6 ~ ~ K32 +485 paragraph, the paragraph near the 3 # to take the pit, can be dug nearby.
Arrangements for the construction process
Retest the original ground elevation embankment, clearing the table to take the pit fill material compacted soil before the extraction, transport, filling, compaction parameters summarized construction supervision engineers reported the approval of the control as a basis for earthwork embankment construction.
Second, the specific construction organization
1, the original ground elevation retest
Owners, to provide lead supervision control point and elevation reference point, using total station and automatic leveling and joint Ping test, according to JTJ061-99 technical specifications and other related management precision measuring and checking the coordinates of each point and standard wire points elevation, Ruofu measurement error does not meet accuracy requirements, the newspaper owners, and supplementary supervision for re-checking of qualified only after the restoration of alignment as the basis for measurement.
Use checking of qualified and approved for use by the supervisory control points, polar coordinates using Total Station Restoration and embankment center line, according to the design drawings and construction specifications size people, let embankment center line. After the retest of the original ground elevation shall be reported to supervision engineer for review.
2, clear the table
Supervising Engineer after review of the original ground elevation work clearing the table.
Clear the table depth of 20-30cm, the upper surface (grass, mud and plant roots) to promote the right to share the subgrade level, will be the lower left section of the topsoil as roadbed pavement use
 

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