耒宜路課題調(diào)查(龍)

1、耒宜高速公路果題夕卜業(yè)調(diào)查報(bào)告1999年6月30 h至7月15日,長(zhǎng)沙交通學(xué)院路橋系道路教研室對(duì)耒宜高速 公路沿線進(jìn)行了土質(zhì)、地質(zhì)、邊坡、料場(chǎng)等調(diào)查，歷吋16天,現(xiàn)將調(diào)查情況匯報(bào)如 下：一.土質(zhì)情況耒宜路全線土質(zhì)較復(fù)雜，有低液限粘土、高液限、高塑指、高含水量粘土、粉性 土、紅砂巖、頁(yè)巖風(fēng)化土等，根據(jù)課題需要，現(xiàn)將沿線各標(biāo)段土質(zhì)情況作簡(jiǎn)單介紹 （見(jiàn)下表一）。標(biāo)段土質(zhì)情況備 注aal該標(biāo)段主要有紅砂巖（強(qiáng)風(fēng)化、弱風(fēng)化）、粘土a2本段為深切、高填路段，土質(zhì)主要有頁(yè)巖、黃土、高液限粘土及 土石混填a3強(qiáng)風(fēng)化頁(yè)巖為主,含少量礫石土bbl強(qiáng)風(fēng)化頁(yè)巖為主b2以強(qiáng)風(fēng)化頁(yè)巖為主，另有紅砂土c本段土質(zhì)較差，最大干

2、密度僅16左右,有較多的高液限粘土，巖 石以灰?guī)r為主ddi主要為強(qiáng)風(fēng)化泥巖、砂巖、頁(yè)巖部分路段含有煤肝石、煤層d2主要有紅砂巖、頁(yè)巖d3以紅砂巖、頁(yè)巖、砂巖組成e含有部分高液限粘土、強(qiáng)（弱）風(fēng)化頁(yè)巖，頁(yè)巖z間含有夾泥層ffl屬紅砂巖地區(qū)，另有黃土f2土質(zhì)主要為粘土、紅砂巖，有少量的高液限粘土、粉性土f3土質(zhì)較好,主要為砂性土，砂的含量約40%左右gg1土質(zhì)中含有粉性土、高液限土、砂性土，巖質(zhì)主要為頁(yè)巖、砂巖、 煤肝石g2土質(zhì)為低液限粗粒土、高液限粘土,土中含有卵石hhl以低液限粘土為主，含有高液限粘土、粉性土，下有煤肝石、紅 砂巖、風(fēng)化泥巖、煤層h2以低液限粘土為主,含有少量高液限粘土iii以

3、低液限粘土為主，含有少量高液限粘土、粉性土12含有高液限粘土、粉性土13以粘土為主，土的含水量較高,下面溶洞較多14土質(zhì)較好,，有填石路基jji高液限粘土分布較廣，液限達(dá)52.985.9,塑性指數(shù)達(dá)25.5-33.9, 土中含有孤石，土呈黃白色j2土的液限較高達(dá)70左右,而且分布較多，土中有孤石，有填石路 基kki主要的土質(zhì)較好,有高液限粘土液限達(dá)73-83k2主要有紅砂巖、低液限紅粘土、高液限粘土,液限達(dá)50-54%另外，在整理調(diào)查所收集的資料的基礎(chǔ)上，將高液限粘土的分布情況進(jìn)行了歸納 （見(jiàn)表二）。二.邊坡情況由于線形的限制、耒宜原路線地形的復(fù)雜和險(xiǎn)峻，耒宜高速公路的深切、高 填路基比較普遍

4、，邊坡高度有的高大40多米，又因沿線地質(zhì)復(fù)雜，土石質(zhì)變化 較大，故在耒宜高速公路的修建過(guò)程中，已經(jīng)發(fā)生多處邊坡塌方現(xiàn)象。在實(shí)地調(diào) 查的基礎(chǔ)上，結(jié)合業(yè)主、監(jiān)理、施工單位所提供的資料，現(xiàn)將在現(xiàn)場(chǎng)觀測(cè)到的邊 坡塌方進(jìn)行整理（見(jiàn)表三）。高液限粘土分布情況一覽表（表二）樁號(hào)最佳含 水量最大干 密度液限塑指cbr值標(biāo)段k169+21024.31.63158.5522.43ak169+23019.81.6655.927.5ak169+82323.81.65568.9041.70ak169+93019.71.6655.727.6ak170+10021.81.64350.417.9ak170+30020.21.

5、6551.522.5ak170+70023.11.6776.8135.55ak188+89023.51.60751.912.9bk194+1501&61.8155.6625.91bk197+06010.81.835024.5ck198+25021.71.6935&5130.75ck199+27023.71.660.426.61ck200+98021.11.68050.0120.2ck201+02520.91.6755.027.00ck201+32023.51.66275.742.00ck201+32021.11.6953.020.00ck201+32021.71.655&

6、;32.00ck203+50020.51.6555.321.3ck212+46016.11.6860.725.5dk213+53522.61.57050.9820.58dk213+55524.11.576026.7dek0+18019.51.7351.824.8eek0+55319.11.745017.7ek220+42517.51.755223.2ek220+47519.21.7351.625.6ek221+47017.31.715118.7ek223+5001&41.6751.526.6ek224+425151.8551.132.3ek225+076.51819.51.7351.8

7、24.8ek229+490201.69752.222.2fk231+07522.31.656&138.1fk234+20014.51.91852.420.3fk234+35019.51.7335128fk234+450221.665525fk234+59017.81.7785631fk235+17015.21.8325128fk235+27017.71.785020fk235+310171.78350.321.3fk237+900181.7752.820.3fk239+42017.21.80153.926.9fk239+75019.581.7655931fk240+245151.895

8、7.7829.8fk246+45017.81.735832gk247+2301&81.735933gk247+30019.51.745030gk247+300161.859342.6gk248+90022.51.5961.839gk249+05020.61.685526gk249+50017.51.835230gk249+60019.21.765734gk249+7001&51.7765.537gk250+10018.41.588644gk250+17017.51.7457.433gk250+25015.11.856536gk250+590181.715737gk250+600

9、14.81.865031gk251+06016.31.826539gk251+37525.91.397342.53.3gk251+45522.91.4462.224.7gk251+86016.71.79502613.5gk251+96016.41.7851.724.213.5gk252+60016.91.68502612.7gk253+15017.91.8253.525gk253+720201.755.328gk253+74021.51.66357.525gk254+240271.5454209.24gk254+340231.6335422gk254+360231.616532gk254+36

10、022.51.62552210gk254+36019.51.6957247.7gk254+370201.6752.522gk254+38017.51.75532gk254+38017.51.755023gk254+400241.617740gk254+40020.51.6552.821gk254+440201.715527gk254+520211.676532gk254+580321.457733gk254+60014.71.74450.824gk254+625291.4757843gk254+650261.5959.131gk254+660241.655522gk254+690211.645

11、3.923gk254+700201.6959.623.99.2gk255+260221.646125.8sgk255+300221.655624.9gk255+320251.585930gk255+340221.695321gk255+36025.51.56561.62&6gk255+400221.6855627gk255+44022.51.6255.822gk255+450221.575826gk255+460251.566528gk255+480221.61552.119gk256+72020.31.71151.0625.4hk256+800181.65850.325.2hk258

12、+88521.31.54751.339.6hk259+00022.91.725317hk259+56027.181.5715018hk260+11521.31.54751.311.7hk260+70019.51.69352.926.8hk260+74019.11.68151.426.9hk261+80023.51.5856130.5hk262+46020.651.745121hk263+460221.750.324.4hk263+56022.41.725924.8hk263+582a1221.7457.32&9hk264+175201.850.125.2hk264+860e159.72

13、8.3hk264+900h156.427.6hk265+050f159.228.2hk265+45021.11.6356.82&1hk266+08021.81.6257.424.2hk266+40022.231.6615014hk267+00019.31.715029hk270+18013.61.8565227.9ik270+2005224.2ik272+20021.21.6795223.4ik272+27019.11.7025123.75ik272+64020.231.6235019ik272+76019.31.70951.724.2ik273+2401&41.7025024

14、.4ik273+3401&51.71951.123.3ik273+6601&21.6435034.8ik273+70022.31.65260.327.123ik273+720251.596127.5ik274+20015.61.7825&927.9ik274+95023.31.6535827.3ik275+86022.11.5395220.3ik275+96021.81.5553.525.5ik276+160211.5545431.8ik276+20025.91.5625532.5ik276+30052.527.5ik276+62020.81.6657.81&7

15、ik280+300-360l&l1.7275123ik282+240-34027.551.5160.221.7ik282+580-65026.21.5577.537ik283+200-3002&91.516626.5ik283+600-68018.451.6954.525ik285+370391.3269.826.316.1 ;153;137jk285+40019.81.76027.9jk285+405241.5261.932.1jk285+51020.21.7251.924jk285+51020.21.7251.924jk285+88031.41.4564.229.7jk28

16、5+91029.91.4654.226.3jk285+94020.61.6765.631.1jk285+99026.61.576.833jk286+09024.21.5957.624.1jk286+66019.91.7452.925.58.6;7;4.3jk286+67029.41.555.220.2jk286+69024.21.6351.225.25.8;5;3.9jk286+71027.91.565&134jk286+730221.6662.832.8jk286+730221.6662.832.8jk286+75021.81.74553.727.5jk287+6402&11

17、.5259.921.9jk287+64060.831.9jk287+66524.41.664.431.9jk288+24823.21.6550.421.5jk288+2481&61.7552.118.7jk289+0902&11.546&420jk289+300-45026.11.5755.320.3棄土jk289+35022.61.6653.322.3jk289+400171.7953.525.5jk289+40023.51.6454.518.5jk289+60030.21.52157.519jk289+600-87025.91.466025棄土jk289+67524

18、.81.6235019.5jk289+675241.635221jk289+70026.81.5777335棄土jk289+700261.585722棄土jk289+70026.751.5873.742.2jk289+725261.625925jk290+22529.11.4570.133.2jk290+250-30029.31.436427棄土jk290+27531.31.426523棄土jk290+30023.21.526428棄土jk290+340301.4375.430.6jk290+35030.61.5153.523.5棄土jk290+35024.51.6859.525.5jk290

19、+力8211.715623jk290+78520.11.6852.821.8jk290+82025.71.526028棄土jk290+86021.61.751.323.3jk290+91022.91.655926jk290+94029.81.635820jk290+98027.81.5773.134.1棄土jk291+00022.11.635520jk291+76030.71.4456425.5jk291+82023.71.62653.319.3jk291+820271.47361.428.4jk291+83031.61.44160.126jk291+830321.4295&426.4

20、jk291+83023.61.6153.617.6jk291+83025.11.60854.422.4jk292+64021.41.70452.824.8jk292+68019.21.76553.525.5jk292+76029.61.46861.923.9jk292+84025.71.525&224.7jk293+30023.41.6555.327.4jk293+30023.61.6552.426.3jk293+30023.61.6552.426.3jk293+32023.21.6650.725.2jk294+53325.61.6257.123.1jk294+55321.91.735

21、0.628.7jk294+59021.31.754.321.5jk294+65017.21.7759.626.4jk294+88025.11.6160.328.2jk294+88025.11.6160.32&2jk294+88024.51.625&828.6jk295+13522.61.65751.521.5jk295+14027.51.5257.525.5jk295+160201.6951.524jk295+160201.6951.524jk295+20025.81.65722jk295+240301.535621.5jk295+33029.31.4957.520.8jk29

22、5+71527.11.555726jk295+84027.11.555&523.5jk295+86025.71.657.523jk296+10020.51.635517jk296+14031.61.496119jk296+16031.21.615624jk296+180201.715222.5jk296+20024.51.65822j取土場(chǎng)130.31.516032.5j取土場(chǎng)125.41.595022j取土場(chǎng)2311.5151.913.9j取土場(chǎng)433.11.4553.512jk296+25027.41.65717.5jk296+29026.81.65817.5jk296+2902&

23、amp;31.654.516.5jk296+3052&91.515517.5jk296+32026.51.65014.5jk296+34026.41.585420jk297+35026.41.615121jk297+36022.51.685423jk297+38022.91.665222.5jk297+460231.695521jk297+47021.81.664821.8jk297+75027.81.65613.5jk297+8002&31.635419jk297+92024.51.6452.518.5jk298+00019.11.734723jk298+62030.41.4

24、86116jk298+64031.21.4275.929.4jk298+70027.51.555728jk298+72021.51.6261.217.jk298+760271.6155.521jk299+40024.21.5687335kk299+64022.51.6245&424.9kk299+64021.51.76430.8kk299+64022.51.6245&424.9kk299+64022.51.6245&424.9kk299+78519.51.79652.518.5kk299+78519.51.79652.51&5kk299+78519.51.796

25、52.518.5kk299+96019.91.62280.534.5kk299+96019.21.6683.131kk300+16016.51.84159.527.5kk300+40015.71.7750.124.1kk300+58014.51.8251.827.6kk300+61017.81.7352.626.6kk300+69017.71.7651.422.2kk300+70015.31.7456.227.3kk300+71016.51.7451.422.1kk300+71017.21.7453.124.1kk300+72026.21.7553.828.8kk301+60017.41.73

26、52.825.95kk301+60017.51.7252.224.4kk301+6001&91.7253.328.3kk301+63019.61.72553.424.2kk301+64018.21.75452.828.4kk301+64017.81.7251.625.8kk301+64019.61.7552&3kk301+65021.61.6955.327.83.3kk301+65017.61.7250.824kk301+65019.11.72453.126kk301+6601&21.6963.133.1kk301+6601&61.762.832.8kk301+

27、6605&132.3kk301+66017.81.7252.524.8kk301+67017.81.7352.926.4kk301+68017.61.7150.827.5kk301+680181.695127.7kk301+69019.11.756.727.2kk301+69019.251.675&528.8kk301+69019.11.756.727.2kk301+7001&21.71450.724kk301+70016.71.757.62&3kk301+71020.81.7757.62&7kk301+72019.11.753.626.8kk301+7

28、2019.11.72552.625.7kk301+72019.81.6953.727kk301+730181.73252.923.2kk301+73017.71.73252.625.9kk301+7401&91.656027.3kk301+7506032kk301+75020.31.6465.732.8kk301+7501&21.845020.8kk301+75017.91.7225227.6kk302+90017.91.7151.323.9kk3o3+5oo17.31.7650.222.4kk303+5101&91.7350.321.5kk303+5301&3

29、1.7351.923.7kk303+5406429.4kk303+90019.21.750.922.8kk303+90019.51.725622kk303+90019.81.75221kk303+91020.41.6161.624.8kk303+95021.21.6256.624.6kk304+120191.757.127.6kk304+240151.85&124.1kk304+2501&71.7552.520.5kk304+48016.91.6569.636.6kk304+57016.31.7153.423kk304+580171.75422.7kk304+58017.51.

30、7852.121.5kk304+580181.755325.5kk304+80022.41.645&224.9kk305+06015.71.856.426.4kk305+06015.71.856.426.4kk305+07015.91.815625.2kk305+0701&51.7656.627.4kk305+070181.65221kk305+0801&31.7554.623.1kk305+0801&31.7554.623.1kk305+09017.71.754.626kk305+10017.71.7255.725.7kk305+10017.71.7255.7

31、25.7kk305+100171.7456.926.9kk305+160161.7752.125.6kk305+18022.61.6555.426.3kk305+24021.91.6459.628.6kk305+51016.41.795322.8kk305+51016.41.795322.8kk305+52016.71.85222kk305+52016.91.7654.525.1kk305+52016.71.850.223.8kk305+53016.71.7559.527kk305+5501&21.7254.520kk305+5501&21.7254.520kk305+5801

32、71.7652.525.5kk305+58017.31.854.529kk305+60016.61.7354.524.9kk305+600a17.61.855.526.5kk305+600b181.7959.626.6khk0+90017.71.73351.223.6kjk1+70016.51.7755.228.2kjk1+70016.51.7755.227k耒宜路邊坡塌方情況調(diào)查表（表三）塌方樁號(hào)所屬 標(biāo)段塌方情況施工單位k169+000-500a1原來(lái)坡比1:1;1:0.75;1:0.5,總塌方量約1萬(wàn) 方,截水溝已坍塌省路橋k180+900a深路塹邊坡，山頭土石質(zhì)變化較大,層位較 多,依

33、次為:堅(jiān)石，黃土，軟石，含軟石高嶺土， 由于雨水的沖刷，使得高嶺土的強(qiáng)度降低 而引起的邊坡塌方.省路橋k183+500a該處塌方主要因?yàn)橥恋暮看?由于滲 水作用引起覆蓋層的坍塌.省路橋k189+800-190+100b該處土質(zhì)較差，風(fēng)化巖巖層走向無(wú)規(guī)律，邊 坡高度太大，過(guò)陡，而形成的坍塌.省路橋k194+200b右路塹邊坡發(fā)生塌方，邊坡土質(zhì)為土石混省路橋合,由于水的作用引起的塌方.k204+900205+450c該路塹邊坡已發(fā)牛塌方,為土石邊坡.省路橋k209+700d左路塹邊坡發(fā)生塌方，塌方原因:邊坡下部 有豐富的煤層，當(dāng)?shù)剞r(nóng)民的不規(guī)范的開(kāi)釆， 掏空坡腳,而引起的塌方，邊坡土質(zhì)依上而 下為頁(yè)巖、煤肝石、煤層十五冶k210+760d路塹邊坡發(fā)生塌方十五冶k210+970d右路塹頂部發(fā)現(xiàn)數(shù)條裂縫,裂縫走向均平 行路線方向，一條位于路塹邊坡頂部邊沿， 另一條距路塹頂部約十米,該邊坡土質(zhì)為 砂巖，呈散落狀，巖石強(qiáng)度較高，但巖石之間 粘結(jié)性差.十五冶k218+500d該處邊坡高度達(dá)47米，邊坡土石質(zhì)由上而 下依次為強(qiáng)風(fēng)化頁(yè)巖（棕黃色,呈松散狀）、 弱風(fēng)化頁(yè)巖（灰綠色，呈塊狀）、整體性頁(yè)巖 （灰色）省建六公 司k239+091f右路塹邊坡發(fā)生塌方，土質(zhì)為紅粘土.岳陽(yáng)路橋k249+000150g左路塹咼邊坡（達(dá)30米）,土質(zhì)為110米含 砂紅粘土，粘結(jié)性差