土方填筑碾壓試驗(yàn)報(bào)告實(shí)習(xí)調(diào)研報(bào)告工作總結(jié)報(bào)告

1、土方填筑碾壓試驗(yàn)報(bào)告編制:審核:批準(zhǔn)：目錄1、概述2、試驗(yàn)?zāi)康?、試驗(yàn)依據(jù)4、試驗(yàn)場(chǎng)地布置5、碾壓試驗(yàn)控制標(biāo)準(zhǔn)6、現(xiàn)場(chǎng)碾壓試驗(yàn)過(guò)程7、碾壓試驗(yàn)結(jié)果及建議施工參數(shù)1概述XXX燈程位于河南省平頂山市魯山縣境內(nèi)，總干渠樁號(hào)SH(3)0+000SH(3)11+938.1,全長(zhǎng)11.938km。起點(diǎn)位于河南省魯山縣薛寨村北，在娘娘廟與樓張之間跨越沙河。XXX艱渠段起點(diǎn)設(shè)計(jì)水位125.37m,與魯山北段起點(diǎn)相接的終點(diǎn)設(shè)計(jì)水位123.489m,總水頭差1.881m。XXXX總干渠設(shè)計(jì)流量320n3/s,加大流量380m3/s。XXX艱工程等級(jí)為一等，主要建筑物為I級(jí)。本標(biāo)段是XXX煨工程第二標(biāo)段，全長(zhǎng)353

2、4m2試驗(yàn)?zāi)康?.本試驗(yàn)針對(duì)箱基渡槽箱基內(nèi)、箱基兩側(cè)土方回填的鋪料方式、鋪料厚度(松鋪)、振動(dòng)碾型號(hào)、碾壓遍數(shù)、最優(yōu)含水率、顆粒級(jí)配分析和干密度等進(jìn)行測(cè)試；2. 通過(guò)試驗(yàn)確定滿足設(shè)計(jì)控制標(biāo)準(zhǔn)的填筑參數(shù)，如鋪層厚度、碾壓遍數(shù)、碾壓速度、振動(dòng)碾工作性能等指標(biāo)；3. 通過(guò)生產(chǎn)性試驗(yàn)，確定最優(yōu)組合參數(shù)，滿足設(shè)計(jì)技術(shù)要求的壓實(shí)標(biāo)準(zhǔn)；4. 確定回填施工機(jī)械及設(shè)備型號(hào)及施工工藝參數(shù)；5. 通過(guò)試驗(yàn)確定質(zhì)量控制的技術(shù)要求和檢驗(yàn)方法，制定壤土、礫砂填筑的施工檢驗(yàn)檢測(cè)標(biāo)準(zhǔn)。3試驗(yàn)依據(jù)及參考南水北調(diào)中線一期工程總干渠沙河南黃河南段(中線建管局直管項(xiàng)目)XXX燈程第二施工標(biāo)段招標(biāo)文件(ZXJ/SG/SH-002)(1

3、) 土工試驗(yàn)規(guī)程SL237-1999(2) 碾壓式土石壩施工技術(shù)規(guī)程SL274-2001XXX艱工程渠道土石方開(kāi)挖、填筑施工技術(shù)要求(河南省水利勘測(cè)設(shè)計(jì)研究有限公司)XXX遍工設(shè)計(jì)圖紙4試驗(yàn)場(chǎng)地布置選擇在將相河附近的空?qǐng)龅兀瑘?chǎng)地面積54X20m2,作為試驗(yàn)場(chǎng)地。試驗(yàn)料鋪填前先進(jìn)行填筑基面清理，將表面腐殖土及植被根等雜物清理干凈，而后采用推土機(jī)整平，振動(dòng)碾碾壓密實(shí)，使基礎(chǔ)的密度不低于設(shè)計(jì)要求的鋪層密度，其表面平整度控制在10cm內(nèi)。本次試驗(yàn)按兩種土料試驗(yàn)：壤土和礫砂，壤土碾壓試驗(yàn)完成后在其場(chǎng)地之上進(jìn)行礫砂碾壓試驗(yàn)。碾壓試驗(yàn)前，我室對(duì)現(xiàn)場(chǎng)壤土的含水率進(jìn)行測(cè)試，壤土含水率較大，在碾壓區(qū)內(nèi)攤鋪晾曬四天

4、后進(jìn)行的碾壓試驗(yàn)。對(duì)試驗(yàn)場(chǎng)地進(jìn)行驗(yàn)收后，在壓平的基礎(chǔ)面上用白灰進(jìn)行放線，測(cè)量人員在試驗(yàn)場(chǎng)地內(nèi)取樣點(diǎn)上測(cè)量高程，作為控制鋪土厚度和觀測(cè)壓實(shí)沉降量的依據(jù)，并將不同鋪層厚度的取樣斷面引出試驗(yàn)場(chǎng)地以外，進(jìn)行標(biāo)識(shí)。5碾壓試驗(yàn)控制標(biāo)準(zhǔn)根據(jù)招標(biāo)文件要求，本標(biāo)段填筑土料采用挖方土料。試驗(yàn)回填用壤土、礫砂材料取白本標(biāo)段箱基渡槽開(kāi)挖區(qū)，由施工單位地質(zhì)工程師和監(jiān)理地質(zhì)工程師確認(rèn)。碾壓試驗(yàn)應(yīng)達(dá)到設(shè)計(jì)要求：箱基內(nèi)回填壤土的壓實(shí)度不小于0.9、箱基內(nèi)回填礫砂相對(duì)密度不小于0.65、基礎(chǔ)兩側(cè)回填壤土壓實(shí)度不小于0.96、基礎(chǔ)兩側(cè)回填礫砂相對(duì)密度不小于0.75。5.1主要碾壓試驗(yàn)設(shè)備本次碾壓試驗(yàn)選擇碾壓機(jī)械為HW-70（3K

5、W蛙式打夯機(jī)兩臺(tái)、YZ18F型振動(dòng)碾一臺(tái)及20t白卸汽車(chē)三輛、裝載機(jī)、挖掘機(jī)一臺(tái)。5.2試驗(yàn)用料的擊實(shí)試驗(yàn)在碾壓試驗(yàn)開(kāi)始之前首先對(duì)箱基渡槽開(kāi)挖區(qū)壤土料、礫砂進(jìn)行擊實(shí)試驗(yàn)。根據(jù)室內(nèi)擊實(shí)試驗(yàn)，最終確定壤土最大干密度為1.78g/cm3,最小干密度1.70g/cm3,最優(yōu)含水率為13.5%,壤土擊實(shí)試驗(yàn)曲線見(jiàn)圖1,顆粒級(jí)配分析見(jiàn)表1,圖2;礫砂最大干密度為2.15g/cm3,最小干密度2.05g/cm3,最優(yōu)含水率為10.5%,礫砂擊實(shí)試驗(yàn)曲線見(jiàn)圖3,顆粒級(jí)配分析見(jiàn)表2、圖4。表1顆粒大小分析記錄表（篩分法）施工單位：施工槽段：/土樣編虧：1取樣地點(diǎn)：現(xiàn)場(chǎng)土樣說(shuō)明：壤土小于5mm重(g):600篩前

6、總土質(zhì)量(g):1000小丁5mni占總土重(%):97.9取樣日期：10月5日粗篩分析細(xì)篩分析孔徑(mm)留篩土重(g)小于該孔徑土重(g)小丁該孔徑土重白分比(%)孔徑(mm)留篩土重(g)小于該孔徑土重(g)小丁該孔徑土重白分比(%)孔徑(mm)6001000P100.020600100.00.04001000100.015654490.71.42001000100.00.520234257.05.1100P1000P100.00.2515219031.73.8二52197997.90.075167233.84.225992092.00.075以下/2以下/P/P/備注及評(píng)語(yǔ)圖2壤土顆粒

7、分析曲線圖顆粒粒徑mm表2顆粒大小分析記錄表(篩分法)施工單位：施工槽段：土樣編虧：1取樣地點(diǎn)：現(xiàn)場(chǎng)土樣說(shuō)明：礫砂小于5mm重(g):600篩前總土質(zhì)量(g):4000小丁5mm占總土重(%):85.5取樣日期：10月5日粗篩分析細(xì)篩分析孔徑(mm)留篩土重(g)小于該孔徑土重(g)小丁該孔徑土重白分比()孔徑(mm)留篩土重(g)小于該孔徑土重(g)小丁該孔徑土重白分比()占總土重白分比(6004000100.020600100.00.04066393498.415654490.71.420115381995.50.520234257.05.110209361090.30.251521903

8、1.73.85299331185.50.075167233.84.22324298774.70.075以下/2以下/備注及評(píng)語(yǔ)1010.1顆粒粒徑mm0.01OOOOOOOOOOO0987654321小于某粒徑土質(zhì)量百分?jǐn)?shù)%00圖4礫砂顆粒分析曲線圖6. 現(xiàn)場(chǎng)碾壓試驗(yàn)過(guò)程6.1土料的挖、裝、運(yùn)全部取白箱基渡槽開(kāi)挖區(qū)合格土料和基坑開(kāi)挖礫砂，挖裝設(shè)備采用一臺(tái)液壓反鏟，取土范圍為地面以下0.53.2m深范圍內(nèi)的開(kāi)挖土料或礫砂，取土方式為立面取土。土料、礫砂經(jīng)白卸汽車(chē)運(yùn)輸至試驗(yàn)區(qū)再經(jīng)裝載機(jī)進(jìn)行攤鋪。6.2土料攤鋪與鋪土厚度的控制土料攤鋪之前，先在各試驗(yàn)區(qū)外側(cè)埋設(shè)預(yù)先做好的厚度控制標(biāo)尺，相鄰兩個(gè)標(biāo)尺之間

9、用線繩拉緊標(biāo)示相應(yīng)的鋪層厚度，作為推土機(jī)攤鋪土料的厚度控制參照。土料初步攤鋪完成后，采用鋼尺等工具測(cè)量厚度標(biāo)尺尺寸線與攤鋪面的高差情況，若實(shí)際鋪土厚度高出設(shè)計(jì)厚度，采用人工配合路面平地機(jī)進(jìn)行攤鋪厚度的調(diào)整工作，直至滿足要求后由測(cè)量人員進(jìn)行鋪土厚度的測(cè)量。若實(shí)際鋪土厚度不夠，就采用裝載機(jī)和人工進(jìn)行鋪土厚度的調(diào)整，直至滿足鋪土厚度要求。人工回填按松鋪厚度15cm20cm進(jìn)行填筑；機(jī)械回填壤土、礫砂按40cm45cm50cm的三個(gè)松鋪厚度（壤土和礫砂分別進(jìn)行松鋪）。6.3試驗(yàn)區(qū)碾壓與監(jiān)測(cè)機(jī)械碾壓進(jìn)行40cm45cm50cm的三個(gè)松鋪厚度（壤土和礫砂分別進(jìn)行松鋪），每個(gè)厚度分別進(jìn)行靜2、振2、振4、振

10、6、振8試驗(yàn)帶；箱基內(nèi)人工回填試驗(yàn)進(jìn)行15cm20cm的二個(gè)松鋪厚度（壤土和礫砂分別進(jìn)行松鋪），每個(gè)厚度分別進(jìn)行振3、振4、振5試驗(yàn)帶。試驗(yàn)區(qū)壤土平整攤鋪完成并經(jīng)過(guò)厚度測(cè)量之后開(kāi)始碾壓工作，每種鋪料厚度分別按照2.0km/h的碾壓行駛速度，每區(qū)先按照2遍無(wú)振動(dòng)靜碾，再按2、4、6、8遍的振動(dòng)碾壓進(jìn)行試驗(yàn)。首先完成壤土碾壓試驗(yàn)，再按相同的方法進(jìn)行礫砂料碾壓試驗(yàn)。壤土、礫砂取樣方式為在靜2,振2、振4、振6、振8條帶分別取樣，取樣點(diǎn)為隨機(jī)抽點(diǎn)，即每種碾壓參數(shù)分別取樣12組試樣分別測(cè)定濕密度、含水率及干密度。現(xiàn)場(chǎng)密度試驗(yàn)采用灌水法，詳見(jiàn)土工試驗(yàn)規(guī)程原位密度試驗(yàn)，試驗(yàn)用薄膜厚度為0.05mm寬度為2m

11、壤土用環(huán)刀法進(jìn)行壓實(shí)密度檢測(cè)，為確保環(huán)刀取樣能真實(shí)反映壓實(shí)度的實(shí)際情況，取樣時(shí)人工在取樣點(diǎn)位挖取樣坑，坑底應(yīng)至該層鋪料厚度的底部，人工量測(cè)取樣坑的深度，從距坑底2/3處挖取樣平臺(tái)，然后砸環(huán)刀取樣。壤土采用環(huán)刀100m就200mm取樣，取樣方式為夯實(shí)3遍、夯實(shí)4遍、夯實(shí)5遍條帶分別取樣，取樣點(diǎn)為隨機(jī)抽點(diǎn)，試驗(yàn)采用平行試驗(yàn)，即每一碾壓遍數(shù)分別取樣9組，結(jié)果取兩次取樣的平均值。在完成不同的振壓遍數(shù)之后，測(cè)量人員在觀測(cè)點(diǎn)位上進(jìn)行高程測(cè)量與壓實(shí)沉降量的觀測(cè)，用環(huán)刀法進(jìn)行壓實(shí)密度檢測(cè)。為確保環(huán)刀取樣能真實(shí)反映壓實(shí)度的實(shí)際情況，取樣時(shí)，人工在取樣點(diǎn)位挖取樣坑，坑底應(yīng)至該層鋪料厚度的底部，人工量測(cè)取樣坑的深度

12、，從距坑底2/3處挖取樣平臺(tái)，然后砸環(huán)刀取樣。6.4現(xiàn)場(chǎng)碾壓布置振動(dòng)碾對(duì)40cm45cm50cm厚度進(jìn)行靜2無(wú)振動(dòng)碾壓，振2、振4、振6、振8振動(dòng)碾壓。蛙式打夯機(jī)對(duì)15cm20cm厚度進(jìn)行夯3,夯4,夯5壓實(shí)。碾壓試驗(yàn)結(jié)果及建議施工參數(shù)壤土回填碾壓試驗(yàn)成果見(jiàn)表3、表4;礫砂回填碾壓試驗(yàn)成果見(jiàn)表5、表6表3壤土回填試驗(yàn)成果（涵洞內(nèi)）設(shè)計(jì)鋪土厚度（cm）夯3遍夯4遍夯5遍含水率（%）干密度g/cm3夯實(shí)度含水率（%干密度g/cm3夯實(shí)度含水率（干密度g/cm3夯實(shí)度1513.31.6089.913.21.6894.414.51.7397.213.61.5486.513.51.7497.813.61

13、.7497.812.91.5084.314.21.7196.112.51.7698.912.51.5386.014.61.7397.214.11.7598.313.91.5989.313.41.7397.213.81.7397.212.41.6190.414.21.6994.913.51.7698.913.21.6693.313.91.7296.613.41.7497.812.81.6492.113.11.7497.813.71.7698.912.71.5989.313.61.7397.213.41.7799.4平均13.01.5889.013.71.7296.613.61.7598.3201

14、3.51.6089.913.41.6994.913.91.7698.913.11.6190.413.71.6894.414.51.7598.314.21.5888.813.91.6894.412.81.7196.114.31.5486.512.91.6994.912.51.7095.513.81.5386.012.61.7196.113.51.7598.312.81.5888.814.31.6391.613.11.7296.612.41.5989.314.01.7095.514.01.7397.213.41.5084.312.71.7296.614.21.7598.313.51.6190.41

15、3.11.7196.113.81.7196.1平均13.41.5788.313.41.6994.913.61.7397.3備注試驗(yàn)室做的最大干密度為1.78g/cm3表4壤土回填試驗(yàn)成果（涵洞外）i土計(jì)1言度cm）靜碾2遍碾壓2遍碾壓4遍碾壓6遍碾壓8遍含水率（干密度g/cm3壓實(shí)度含水率（干密度g/cm3壓實(shí)度含水率（為干密度g/cm3壓實(shí)度含水率（干密度g/cm3壓實(shí)度4013.21.4380.313.91.5386.013.41.6291.013.51.7598.313.81.4480.913.41.5184.812.91.6391.613.21.7397.212.91.49183.71

16、3.71.5486.513.81.59P89.312.91.7598.313.51.5184.812.51.5285.414.31.5989.314.11.7296.613.81.4380.313.91.5084.314.01.6391.613.41.7799.4r12.91.4883.112.81.5687.613.51.67P93.813.61.7698.914.11.4883.114.21.5989.313.41.6492.113.71.7698.913.41.4279.813.01.6291.012.81.6592.712.81.7497.8:13.51.43180.314.01.53

17、86.014.01.57P88.212.91.7497.813.61.5184.813.81.6089.913.71.65192.713.61.7397.212.91.4179.212.91.5989.313.21.6492.113.91.7799.4:14.21.42179.814.21.6291.013.71.58P88.813.31.7598.3均13.51.4581.713.51.5687.613.61.6291.113.41.7598.245r14.21.3475.314.21.5687.612.81.59P89.313.91.6994.913.51.3676.413.81.4883

18、.113.51.6190.414.21.7397.214.01.3978.113.11.4380.313.91.5888.813.51.6291.0r12.91.4983.712.91.4480.912.91.56P87.613.71.6492.113.51.4682.013.81.5285.413.91.6492.113.11.7497.813.41.4983.713.41.5486.514.21.6592.713.91.7196.113.61.3475.312.8r1.4279.813.91.5788.214.21.6592.7r12.41.3877.514.21.5788.212.81.

19、6190.413.81.7296.613.91.4782.613.51.5587.113.31.5888.813.51.7397.2I14.21.4682.013.31.4682.013.51.6089.913.41.6391.6r14.01.4883.113.9M.5788.213.41.6291.014.31.7497.813.51.3777.013.41.5687.613.21.5989.313.71.7296.6均13.61.4279.713.51.5184.713.41.6089.913.81.6995.15013.51.3777.013.61.4983.714.21.5687.61

20、4.51.6190.414.21.3877.513.41.4782.613.61.4883.112.61.6693.313.51.3575.813.91.4380.313.81.5386.013.81.5888.812.9P13.91.381.3977.578.114.012.81.431.4680.382.012.813.51.521.4985.4P83.713.513.41.641.5792.188.214.31.3978.114.31.4983.713.71.5386.012.91.6190.413.5P13.01.381.4077.578.713.513.71.421.4879.883

21、.113.912.41.511.53P84.8P86.013.413.21.591.6289.391.012.81.3877.512.81.4883.113.51.5285.413.61.6089.913.71.4078.712.91.4179.213.11.5788.213.71.6492.1P13.81.3676.413.81.4782.614.01.62P91.013.61.5989.313.71.3777.013.51.4682.013.71.5084.313.41.5888.8p13.61.3877.513.51.4681.913.51.5386.013.51.6190.31，注試驗(yàn)

22、室做的最大干密度為1.78g/cm3表5礫砂回填試驗(yàn)成果（涵洞內(nèi)）設(shè)計(jì)鋪土厚度（cm）夯3遍夯4遍夯5遍含水率（為干密度g/cm3相對(duì)密度含水率（為干密度g/cm3相對(duì)密度含水率（為干密度g/cm3相對(duì)密度1510.32.110.6110.52.130.8111.22.130.8110.82.12:0.7110.42.120.7110.52.140.9011.12.100.5110.92.130.8110.22.140.9010.42.090.4111.12.120.719.92.140.9010.82.09:0.4110.72.130.81P10.92.140.909.82.110.6110

23、.42.130.8110.52.130.8110.82.120.7110.12.120.7110.42.140.9010.42.1310.819.82.120.71P10.22.140.9010.72.110.6110.82.130.81P10.72.140.90平均10.62.110.6010.52.130.7610.52.140.882011.12.100.5110.52.090.41r9.82.120.7110.42.080.3110.22.120.7110.32.130.8110.92.090.4111.22.110.6110.72.120.719.82.080.319.82.110.

24、61r10.92.140.9010.52.100.5110.52.130.8110.52.140.9010.82.110.6110.72.120.7110.32.130.8110.62.120.7110.52.100.51r10.42.120.7110.32.110.6110.32.120.7110.12.140.90102.100.5111.12.090.4111.12.120.71平均10.52.100.5010.52.110.6110.52.130.80備注試驗(yàn)室做的最大干密度為2.15g/cm3最小干密度為2.05g/cm3表6礫砂回填試驗(yàn)成果（涵洞外）i土計(jì)1言度cm）靜碾2遍碾壓2

25、遍碾壓4遍碾壓6遍碾壓8遍含水率（干密度g/cm相對(duì)密度含水率（干密度g/cm相對(duì)密度含水率（為干密度g/cm相對(duì)密度含水率（干密度g/cm相對(duì)密度4010.22.100.5110.62.100.5111.22.140.9010.82.140.909.62.1110.6110.8r2.110.6110.52.14r0.9010.22.130.8111.02.090.4110.92.110.6110.92.130.8110.52.140.9010.92.100.5111.22.120.7110.22.110.6111.02.140.9010.82.090.419.8P2.130.8110.52.

26、11r0.619.62.130.81r10.32.1廠0.619.6r2.120.719.82.14r0.9010.52.140.9011.12.100.5110.22.100.5110.62.120.7110.32.140.90r9.82.090.4110.9P2.110.6111.32.11r0.6111.02.130.8110.52.1010.5111.2r2.110.6110.82.12r0.7111.32.140.9010.62.100.5110.52.110.6111.02.130.8110.42.140.9010.82.100.5110.42.120.719.92.120.711

27、0.82.140.9010.92.1110.6110.9r2.130.8110.22.14r0.9010.92.130.81均10.52.100.5110.62.110.6510.62.130.7710.62.140.87459.92.1010.5110.4r2.100.5110.32.13r0.8110.52.130.8110.32.100.5110.12.120.7110.92.100.5110.32.120.7110.92.090.419.82.110.6110.42.130.8110.42.120.71:10.42.1010.5111.2:2.110.6111.22.12r0.7110

28、.72.140.9011.32.090.4110.92.110.619.92.1210.7111.32.140.909.62.080.3110.52.120.7110.32.120.719.82.110.61r11.32.0810.3110.7:2.100.519.82.13P0.8110.52.140.9010.52.090.4110.22.100.5111.22.120.7110.72.130.8110.42.110.6110.62.110.6110.02.110.6110.62.140.90r10.82.090.4110.0r2.100.5111.22.11P0.6110.12.140.9010.72.100.5111.22.100.5110.52.120.7111.02.130.8110.22.110.619.72.110.6110.42.130.8110.82.120.71均10.52.100.4610.42.110.5910.52.120.7110.62.130.81509.92.060.1010.02.110.6110.52.120.7110.22.130.8110.02.070.2