黃桷坪長江大橋項目(Z0～Z3墩)工程地質(zhì)詳細(xì)勘察報告

黃桷坪長江大橋項目(Z0～Z3墩)詳細(xì)勘察報告黃桷坪長江大橋項目(Z0～Z3墩)工程地質(zhì)勘察報告（上層右線K1+016.7911~K1+768.7911）（詳細(xì)勘察）目錄1 概述 ⑥工程區(qū)裂隙和層面的產(chǎn)狀是由場地附近地表基巖露頭實測確定，不排除與基礎(chǔ)實際產(chǎn)狀存在差異的情況；且報告所提層面及裂隙的巖土設(shè)計參數(shù)多為經(jīng)驗取值，建議根據(jù)實際地質(zhì)情況對裂隙和層面參數(shù)進(jìn)行修正，動態(tài)設(shè)計，信息法施工，確保安全。⑦工程應(yīng)遵從動態(tài)設(shè)計、信息法施工的原則，加強(qiáng)施工開挖驗槽，以具體開挖情況、驗槽情況結(jié)合監(jiān)測數(shù)據(jù)再進(jìn)一步細(xì)化地質(zhì)資料、進(jìn)而優(yōu)化設(shè)計和施工方案，在此基礎(chǔ)上，采取切實科學(xué)可行的技術(shù)措施確保工程的建設(shè)安全。⑧由于擬建場地主要為砂質(zhì)泥巖，采用機(jī)械成孔時，在地下水(或掘進(jìn)冷卻液)潤濕和切割刀具擾動的共同作用下，易產(chǎn)生“糊鉆”黏結(jié)現(xiàn)象或堵塞渣口等情況，影響掘進(jìn)效率以及巖芯取樣，建議在取樣深度處采用專業(yè)取芯設(shè)備進(jìn)行取樣，若取的巖樣單軸抗壓強(qiáng)度試驗無法滿足設(shè)計要求的情況，建議采用巖基平板荷載試驗確定地基承載力。⑨在相應(yīng)設(shè)計階段若遇到本報告未提及并需詳勘提出的參數(shù)，請設(shè)計或業(yè)主以聯(lián)系單形式單獨提資，若現(xiàn)場遇到本報告未述及的地質(zhì)問題，請及時通知我院現(xiàn)場查驗。表5.1-1砂質(zhì)泥巖物理力學(xué)性質(zhì)統(tǒng)計表（中風(fēng)化Z1墩砂質(zhì)泥巖）野外編號物理指標(biāo)力學(xué)性指標(biāo)顆粒密度(g/cm3)塊體密度(g/cm3)飽和抗壓強(qiáng)度σc(MPa)天然抗壓強(qiáng)度σc0(MPa)變形模量Eo彈性模量Ee泊松比μ抗拉強(qiáng)度σt抗剪強(qiáng)度指標(biāo)自然飽和單值(MPa)單值(MPa)單值(MPa)單值(MPa)圖解法tgφC(MPa)Z2-1-14.56.90.130.690.634.36.70.124.66.40.11Z2-8-12.782.582.615.37.42.772.572.605.27.82.792.582.615.58.0Z2-8-24.36.30.090.700.554.56.70.104.26.50.11Z2-10-14.26.54.36.14.16.4Z2-10-24.05.80.170.700.923.95.60.153.85.40.16Z2-13-15.88.45.78.16.17.9Z2-13-26.79.20.240.721.036.49.00.216.98.60.23Z2-13-32.792.582.615.57.497113830.402.792.572.615.37.794813330.392.782.582.615.67.994113100.38Z2-24-13.44.83.55.13.34.9Z2-25-17.09.67.29.16.89.5Z2-27-19.713.09.412.710.012.2Z2-3-15.77.80.240.721.065.47.70.225.87.30.23Z2-6-15.57.10.240.721.065.37.40.225.67.60.23Z2-11-13.65.73.76.03.55.8Z2-11-26.59.00.180.731.066.78.40.176.38.80.17Z2-16-14.46.54.36.34.16.1Z2-19-16.48.96.18.76.68.3Z2-22-15.67.65.47.35.87.0樣本數(shù)n66654543332177平均值fm2.782.582.615.47.695313420.390.180.710.90標(biāo)準(zhǔn)差σ1.51.716370.010.050.010.22變異系數(shù)δ0.280.230.020.030.030.290.020.24標(biāo)準(zhǔn)值2.782.582.615.17.293012860.370.160.700.74最大值2.792.582.6110.013.097113830.400.240.731.06最小值2.772.572.603.34.894113100.380.090.690.55表5.1-2砂質(zhì)泥巖物理力學(xué)性質(zhì)統(tǒng)計表（微風(fēng)化Z1墩砂質(zhì)泥巖）野外編號物理指標(biāo)力學(xué)性指標(biāo)顆粒密度(g/cm3)塊體密度(g/cm3)飽和抗壓強(qiáng)度σc(MPa)天然抗壓強(qiáng)度σc0(MPa)變形模量Eo彈性模量Ee泊松比μ抗拉強(qiáng)度σt抗剪強(qiáng)度指標(biāo)自然飽和單值(MPa)單值(MPa)單值(MPa)單值(MPa)圖解法tgφC(MPa)Z2-8-55.88.45.68.16.07.9Z2-8-63.55.584911280.403.45.482611090.393.65.183211090.39Z2-8-86.28.36.48.96.08.5Z2-10-52.792.562.594.76.50.180.711.122.782.572.604.66.80.192.792.562.604.87.00.20Z2-10-68.411.2173623470.388.712.0170022820.378.211.4171122860.37Z2-10-73.75.887211540.403.85.486111550.393.65.687111610.39Z2-10-83.04.82.94.72.84.5Z2-13-67.110.26.910.17.39.5Z2-13-75.57.5119914920.405.37.8118314720.395.78.117114620.40Z2-24-35.98.3125717900.405.78.1122817280.395.57.8121816970.38Z2-24-42.772.552.597.711.10.380.731.962.772.552.587.610.70.352.772.552.598.110.30.37Z2-24-53.75.97168900.403.55.87068790.393.85.57008740.40Z2-24-65.37.25.17.55.57.7Z2-24-78.611.6180722660.389.012.4176722150.378.511.9175322080.37Z2-25-42.772.562.596.59.20.290.711.512.782.562.606.39.10.272.782.562.606.78.60.28Z2-25-55.77.7124117670.405.58.1121217060.395.98.3120316750.38Z2-25-65.57.75.88.25.47.8Z2-25-75.88.5126316410.386.07.9123316110.375.68.3124316110.38Z2-25-84.36.34.26.14.15.9Z2-27-47.49.90.320.721.777.610.50.317.210.20.33Z2-27-56.69.56.89.06.49.3Z2-27-64.06.395612710.403.96.193112490.394.15.993812500.39Z2-27-77.910.47.610.98.111.2Z2-11-37.610.4187223800.367.410.1184523700.367.19.7187724080.36Z2-11-52.762.542.586.89.60.400.732.052.772.552.586.69.40.372.762.532.577.08.90.38Z2-11-66.68.9139917690.386.49.3138017480.376.89.6138417700.38Z2-11-77.510.17.910.87.410.4Z2-11-87.210.3152519330.387.49.7148918880.377.010.1149419100.38Z2-16-46.58.7138217510.380.290.721.536.39.1135317150.370.296.79.4135317300.380.28Z2-16-52.782.572.607.39.82.772.582.617.510.52.782.572.607.110.0Z2-16-64.06.193913370.404.15.791612890.393.96.091012670.38Z2-16-74.46.54.36.34.26.1Z2-16-85.07.3110614710.404.87.1107714450.395.26.9108614470.39Z2-19-56.59.20.280.721.476.39.00.306.78.70.29Z2-19-62.762.552.585.98.1128816320.382.762.542.585.78.4125715920.372.772.552.596.18.7126116120.38Z2-19-77.510.00.450.762.407.810.70.467.310.20.44Z2-19-85.88.2149218830.376.07.6148118760.375.78.0148518990.38Z2-19-98.211.27.910.87.610.4Z2-22-47.19.50.420.752.297.310.10.406.99.70.41Z2-22-52.782.562.598.111.4167822690.382.762.542.588.310.7164422070.372.772.562.597.911.2165522110.37Z2-22-66.89.36.69.06.38.7Z2-22-77.410.6155719730.387.310.3152019270.377.89.9152519490.38樣本數(shù)n2121211261266060602799平均值fm2.772.562.596.28.6127416860.380.330.731.79標(biāo)準(zhǔn)差σ1.51.93564120.010.080.020.42變異系數(shù)δ0.240.220.280.240.030.230.020.24標(biāo)準(zhǔn)值2.772.562.595.98.3119515950.380.300.721.53最大值2.792.582.619.012.4187724080.400.460.762.40最小值2.762.532.572.84.51718740.360.180.711.12表5.1-3砂巖物理力學(xué)性質(zhì)統(tǒng)計表（中風(fēng)化Z1墩砂巖）野外編號物理指標(biāo)力學(xué)性指標(biāo)顆粒密度(g/cm3)塊體密度(g/cm3)飽和抗壓強(qiáng)度σc(MPa)天然抗壓強(qiáng)度σc0(MPa)變形模量Eo彈性模量Ee泊松比μ抗拉強(qiáng)度σt抗剪強(qiáng)度指標(biāo)自然飽和單值(MPa)單值(MPa)單值(MPa)單值(MPa)圖解法tgφC(MPa)Z2-24-214.624.10.851.004.3715.022.70.8314.223.50.86Z2-25-224.631.81.161.076.0723.930.51.1722.929.81.20Z2-25-321.829.5419352700.1421.028.5409351360.1422.627.6403850700.14Z2-27-222.830.61.270.926.4522.130.11.3023.528.81.26Z2-27-32.712.482.5122.628.5435849640.132.722.492.5221.929.6421148450.132.712.482.5123.330.6425948910.12Z2-16-230.439.11.331.026.3829.437.71.3331.536.31.31Z2-19-220.526.41.151.015.5119.727.71.1721.028.31.19Z2-22-22.722.482.5223.233.80.621.003.612.722.492.5222.232.90.652.712.492.5223.831.90.64Z2-29-130.638.91.491.096.5129.437.91.4731.536.71.46Z2-30-120.126.01.130.974.9519.427.11.1520.627.81.12樣本數(shù)n66630306662488平均值fm2.722.492.5223.030.5419250290.131.131.015.48標(biāo)準(zhǔn)差σ4.594.491151600.010.26變異系數(shù)δ0.200.150.030.030.060.23標(biāo)準(zhǔn)值2.722.492.5221.529.1409748970.131.041.015.48最大值2.722.492.5231.539.1435852700.141.491.096.51最小值2.712.482.5114.222.7403848450.120.620.923.61表5.1-4砂巖物理力學(xué)性質(zhì)統(tǒng)計表（微風(fēng)化Z1墩砂巖）野外編號物理指標(biāo)力學(xué)性指標(biāo)顆粒密度(g/cm3)塊體密度(g/cm3)飽和抗壓強(qiáng)度σc(MPa)天然抗壓強(qiáng)度σc0(MPa)變形模量Eo彈性模量Ee泊松比μ抗拉強(qiáng)度σt抗剪強(qiáng)度指標(biāo)自然飽和單值(MPa)單值(MPa)單值(MPa)單值(MPa)圖解法tgφC(MPa)Z2-8-332.739.11.791.087.8933.636.81.8031.838.21.78Z2-8-419.226.1354843440.1718.725.5348542280.1617.924.6343141780.16Z2-10-32.752.522.5631.941.21.421.067.062.762.532.5731.240.11.442.752.522.5533.438.41.45Z2-10-431.240.4589671160.1030.039.2576469470.1132.137.8579769510.10Z2-13-419.926.7427750780.130.891.035.0320.828.4411949430.120.9019.527.2401747730.120.87Z2-8-729.935.6553565400.1128.937.1548165250.1130.938.3540064430.11Z2-13-52.722.502.5321.929.62.712.492.5222.527.72.712.492.5221.328.9Z2-11-42.702.482.5112.819.5240928720.150.661.023.032.712.472.5112.519.0232527850.150.652.712.472.5113.418.4235928300.150.63Z2-16-32.742.512.5429.535.6765092530.082.732.502.5328.534.9746790420.082.732.512.5430.433.7736989510.08Z2-19-32.722.492.5225.731.7485056870.132.712.492.5226.933.6469655560.132.722.502.5325.232.369755540.13Z2-19-420.328.01.091.034.9020.926.31.0619.727.71.08Z2-22-328.132.9653181240.0927.234.3639679460.0928.835.4627578250.09樣本數(shù)n15151536362424241555平均值fm2.722.502.5325.332.0482460200.121.171.045.58標(biāo)準(zhǔn)差σ6.216.30180819480.030.42變異系數(shù)δ0.250.200.370.320.230.36標(biāo)準(zhǔn)值2.722.502.5325.032.3418053270.110.971.045.58最大值2.762.532.5733.641.27650.09253.00.21.81.17.9最小值2.702.472.5112.518.4697.02785.00.10.61.03.0表5.1-5砂質(zhì)泥巖物理力學(xué)性質(zhì)統(tǒng)計表（中風(fēng)化Z2墩砂質(zhì)泥巖）野外編號物理指標(biāo)力學(xué)性指標(biāo)顆粒密度(g/cm3)塊體密度(g/cm3)飽和抗壓強(qiáng)度σc(MPa)天然抗壓強(qiáng)度σc0(MPa)變形模量Eo彈性模量Ee泊松比μ抗拉強(qiáng)度σt抗剪強(qiáng)度指標(biāo)自然飽和單值(MPa)單值(MPa)單值(MPa)單值(MPa)圖解法tgφC(MPa)Z3-4-25.88.40.240.721.075.68.80.226.09.00.23Z3-4-35.07.4111714870.405.27.8108414550.394.97.5109714610.39Z3-9-26.89.70.300.731.677.010.40.316.69.90.30Z3-9-36.19.3130016890.386.38.6126916580.375.99.1127916580.37Z3-18-26.79.60.450.762.366.89.10.426.59.40.44Z3-18-35.57.9157519750.385.37.7153919300.375.17.4152819250.37Z3-23-14.36.64.56.24.26.5Z3-23-35.07.0149219390.384.87.4145619020.375.17.5146819030.38Z3-20-13.75.93.65.83.55.6Z3-20-24.67.10.290.721.674.67.00.314.96.70.30Z3-20-35.38.0158121370.385.17.8154820790.375.57.5155920820.37Z3-25-14.56.80.300.721.434.36.60.274.66.40.29Z3-2-26.49.50.450.742.456.58.90.466.29.40.45Z3-6-25.78.50.390.732.015.68.40.376.08.00.38Z3-7-26.69.40.310.721.516.810.10.306.49.60.29Z3-12-16.68.96.49.36.89.6Z3-12-22.772.552.584.86.80.320.731.752.772.552.595.07.20.312.762.552.584.77.00.33Z3-12-38.712.3154819620.388.911.5151119150.378.511.9151619380.38Z3-14-15.98.86.08.25.78.5Z3-14-22.762.562.596.39.30.280.721.432.782.562.596.19.00.272.782.562.595.98.70.26Z3-15-15.47.85.28.25.58.3Z3-15-24.86.80.370.732.015.07.30.374.77.00.38Z3-21-15.57.65.37.95.68.1Z3-21-210.314.60.450.752.6410.815.60.4410.114.90.47Z3-26-10.660.783.430.690.68樣本數(shù)n6667272181818391313平均值fm2.772.562.595.88.5141518390.380.370.731.96標(biāo)準(zhǔn)差σ1.41.91752160.010.110.020.63變異系數(shù)δ0.240.230.120.120.020.310.030.32標(biāo)準(zhǔn)值2.772.562.595.58.1134217490.370.340.731.64最大值2.782.562.5910.815.6158121370.400.690.783.43最小值2.762.552.583.55.6108414550.370.220.721.07表5.1-6砂質(zhì)泥巖物理力學(xué)性質(zhì)統(tǒng)計表（微風(fēng)化Z2墩砂質(zhì)泥巖）野外編號物理指標(biāo)力學(xué)性指標(biāo)顆粒密度(g/cm3)塊體密度(g/cm3)飽和抗壓強(qiáng)度σc(MPa)天然抗壓強(qiáng)度σc0(MPa)變形模量Eo彈性模量Ee泊松比μ抗拉強(qiáng)度σt抗剪強(qiáng)度指標(biāo)自然飽和單值(MPa)單值(MPa)單值(MPa)單值(MPa)圖解法tgφC(MPa)Z3-4-42.772.562.598.812.00.490.752.912.772.552.589.111.30.522.772.562.598.511.70.51Z3-4-56.910.06.79.76.59.4Z3-4-67.210.6183323320.367.010.4181323280.367.510.0184423660.36Z3-4-78.212.17.911.98.511.3Z3-9-42.782.552.586.49.10.390.732.092.772.562.596.28.90.402.772.552.585.98.60.38Z3-9-57.811.67.611.28.110.8Z3-9-65.98.7173223850.375.78.5169123220.376.18.1170723280.37Z3-9-76.89.36.69.87.010.0Z3-18-49.413.60.780.803.939.113.20.829.812.60.80Z3-18-57.611.17.210.87.710.3Z3-18-67.610.4222831710.347.410.9217630500.347.911.2215830190.34Z3-18-75.88.36.08.85.68.5Z3-23-42.772.572.604.46.50.180.731.032.772.562.594.56.90.172.782.572.604.36.70.16Z3-23-511.116.311.415.310.816.0Z3-23-63.45.47939840.403.35.37919840.393.25.17849790.40Z3-23-78.412.68.212.38.811.7Z3-4-84.46.6101514460.404.67.099113940.374.36.798413700.38Z3-18-87.99.7122515200.408.19.1122215210.397.69.5120915090.40Z3-20-42.772.562.594.36.40.180.711.082.782.562.604.26.70.172.782.562.604.46.90.19Z3-20-55.27.75.58.25.17.9Z3-20-66.29.4130716490.386.48.7129616430.376.09.1130116630.38Z3-20-74.77.24.57.04.46.7Z3-6-38.312.2171521510.388.011.9167621020.378.611.4166420930.37Z3-6-42.762.562.596.89.60.320.731.702.772.572.596.610.00.312.772.562.607.010.30.30Z3-6-54.66.8104814920.404.87.3102314390.394.57.0101514140.38Z3-6-610.615.70.490.762.8310.914.70.5210.315.20.51Z3-6-74.57.2102312690.404.37.0102112700.394.66.7101012610.40Z3-7-35.58.2191424480.375.77.7184523700.365.48.0187724080.36Z3-7-42.762.562.595.98.40.470.742.482.762.552.585.78.20.452.772.562.595.57.90.46Z3-7-55.58.2192524620.375.48.0186123910.365.87.8189324290.36Z3-7-65.47.95.27.75.57.4Z3-12-45.08.10.440.742.424.97.80.464.77.50.45Z3-12-54.26.4149118430.384.16.1145618130.374.45.9143817900.37Z3-12-64.16.10.290.731.693.96.00.314.25.70.30Z3-12-75.27.1178722410.385.07.5174721910.375.37.7173821890.37Z3-12-86.28.7211926400.356.59.2209226340.356.18.9211226510.35Z3-14-35.88.7171723640.375.68.3167623020.376.08.0169223080.37Z3-14-44.46.70.280.721.454.36.50.264.66.20.29Z3-14-54.46.2133716940.384.26.4130516540.374.56.6130916740.38Z3-14-66.28.80.440.752.236.59.40.446.18.90.40Z3-14-75.88.86.08.25.68.6Z3-15-32.772.572.606.69.6193224170.362.772.562.596.89.1187423590.352.772.572.606.49.5189023730.35Z3-15-45.17.45.07.24.86.9Z3-15-55.88.60.470.752.485.68.40.456.08.10.46Z3-15-66.69.7230129700.356.49.5216528090.346.89.1221128510.34Z3-21-32.782.582.615.27.9113216120.402.792.572.605.47.4110615560.392.782.582.615.17.7109715280.38Z3-21-46.19.00.630.763.065.98.70.605.78.50.62Z3-21-55.27.7179224680.375.17.5175324080.375.47.2176624090.37Z3-21-64.87.30.330.721.734.77.10.315.06.80.32Z3-21-74.76.8148118320.384.57.2144718020.374.87.3142917790.37Z3-26-10.660.783.430.690.68樣本數(shù)n242424150150666666481616平均值fm2.772.562.596.18.8156120320.370.430.742.28標(biāo)準(zhǔn)差σ1.72.34105430.020.170.020.82變異系數(shù)δ0.280.260.260.270.050.390.030.36標(biāo)準(zhǔn)值2.772.562.595.98.5147419180.370.390.731.92最大值2.792.582.6111.416.3230131710.400.820.803.93最小值2.762.552.583.25.17849790.340.160.711.03表5.1-7砂巖物理力學(xué)性質(zhì)統(tǒng)計表（中風(fēng)化Z2墩砂巖）野外編號物理指標(biāo)力學(xué)性指標(biāo)顆粒密度(g/cm3)塊體密度(g/cm3)飽和抗壓強(qiáng)度σc(MPa)天然抗壓強(qiáng)度σc0(MPa)變形模量Eo彈性模量Ee泊松比μ抗拉強(qiáng)度σt抗剪強(qiáng)度指標(biāo)自然飽和單值(MPa)單值(MPa)單值(MPa)單值(MPa)圖解法tgφC(MPa)Z3-4-122.931.522.230.823.629.7Z3-9-118.725.118.126.319.327.0Z3-18-12.732.502.5431.739.42.732.492.5333.041.82.732.502.5431.040.2Z3-23-228.637.21.221.066.2227.536.11.1829.435.01.20Z3-1-117.724.70.851.004.3618.626.20.8217.425.20.86Z3-6-12.732.492.5329.637.51.331.036.362.722.492.5328.836.21.302.712.482.5227.735.11.31Z3-7-12.722.492.5321.227.62.712.482.5220.428.72.712.492.5321.729.5Z3-2-10.621.003.590.650.61樣本數(shù)n99921211244平均值fm2.722.492.5324.231.91.001.025.13標(biāo)準(zhǔn)差σ5.235.530.29變異系數(shù)δ0.220.170.29標(biāo)準(zhǔn)值2.722.492.5322.229.80.851.025.13最大值2.732.502.5433.041.81.331.066.36最小值2.712.482.5217.424.70.611.003.59表5.1-8砂巖物理力學(xué)性質(zhì)統(tǒng)計表（微風(fēng)化Z2墩砂巖）野外編號物理指標(biāo)力學(xué)性指標(biāo)顆粒密度(g/cm3)塊體密度(g/cm3)飽和抗壓強(qiáng)度σc(MPa)天然抗壓強(qiáng)度σc0(MPa)變形模量Eo彈性模量Ee泊松比μ抗拉強(qiáng)度σt抗剪強(qiáng)度指標(biāo)自然飽和單值(MPa)單值(MPa)單值(MPa)單值(MPa)圖解法tgφC(MPa)Z3-14-834.646.6637377580.1033.145.2620875850.1035.543.8624976210.10樣本數(shù)n33333平均值fm34.4045.20627776550.10標(biāo)準(zhǔn)差σ1.31.485.991.30.0變異系數(shù)δ0.040.030.010.010.00標(biāo)準(zhǔn)值32.543.1614775170.10最大值35.546.6637377583.00最小值33.143.8620875850.10表5.1-9砂質(zhì)泥巖物理力學(xué)性質(zhì)統(tǒng)計表（微風(fēng)化Z0砂質(zhì)泥巖）野外編號物理指標(biāo)力學(xué)性指標(biāo)顆粒密度(g/cm3)塊體密度(g/cm3)飽和抗壓強(qiáng)度σc(MPa)天然抗壓強(qiáng)度σc0(MPa)變形模量Eo彈性模量Ee泊松比μ抗拉強(qiáng)度σt抗剪強(qiáng)度指標(biāo)自然飽和單值(MPa)單值(MPa)單值(MPa)單值(MPa)圖解法tgφC(MPa)P1-1-22.772.572.605.78.40.320.731.722.772.562.595.58.10.312.782.572.605.37.90.31P1-1-35.98.9112714640.381.431.027.015.88.6110014370.371.446.28.3110814370.381.45P1-2-26.18.50.380.732.005.98.90.396.39.10.37P1-2-35.07.4101514460.405.27.999113940.394.97.598413700.38P1-2-47.611.27.810.57.411.0P1-3-22.782.552.594.36.90.180.711.102.772.562.594.26.70.192.772.552.584.56.50.19P1-3-34.26.888612620.404.16.786912220.394.46.485911960.38P1-3-47.810.60.420.752.267.411.10.407.911.40.39P1-3-57.210.0134216820.387.510.7131216450.377.010.2130316410.37樣本數(shù)n66627271212121555平均值fm2.772.562.596.08.7107514330.380.540.792.82標(biāo)準(zhǔn)差σ1.31.61731610.010.470.132.38變異系數(shù)δ0.210.190.160.110.030.860.170.85標(biāo)準(zhǔn)值2.772.562.595.68.298413480.380.330.660.56最大值2.782.572.607.911.4134216820.401.451.027.01最小值2.772.552.584.16.485911960.370.180.711.10表5.1-10砂巖物理力學(xué)性質(zhì)統(tǒng)計表（中風(fēng)化Z0砂巖）野外編號物理指標(biāo)力學(xué)性指標(biāo)顆粒密度(g/cm3)塊體密度(g/cm3)飽和抗壓強(qiáng)度σc(MPa)天然抗壓強(qiáng)度σc0(MPa)變形模量Eo彈性模量Ee泊松比μ抗拉強(qiáng)度σt抗剪強(qiáng)度指標(biāo)自然飽和單值(MPa)單值(MPa)單值(MPa)單值(MPa)圖解法tgφC(MPa)P1-1-126.737.127.534.925.936.3P1-2-129.740.328.339.630.438.0P1-3-123.232.422.431.721.730.4樣本數(shù)n00099000000平均值fm26.235.6標(biāo)準(zhǔn)差σ3.193.52變異系數(shù)δ0.120.10標(biāo)準(zhǔn)值24.233.4最大值30.440.3最小值21.730.4黃桷坪長江大橋項目(Z0～Z3墩)勘探點數(shù)據(jù)一覽表鉆孔編號高程坐標(biāo)鉆孔深度土層厚度基巖面標(biāo)高縱坐標(biāo)(X)橫坐標(biāo)(Y)Z2-1190.8661320.5361941.6038.5015.60175.26Z2-2195.0461303.1261934.0841.6015.80179.24Z2-3195.4561286.0461934.9145.0017.60177.85Z2-4195.6061265.4461942.8044.8017.30178.30Z2-5191.1361311.6461946.3935.5016.40174.73Z2-6192.4161294.1861944.7341.6018.60173.81Z2-7189.5261276.4061948.5241.7016.30173.22Z2-8175.0861321.4361965.3570.206.50168.58Z2-9175.946131