CORRELATION ANALYSIS OF PHYSICAL AND MECHANICAL INDEXES OF FLUVIAL SILTY CLAY LAYER IN TYPICAL RIVER BASINS
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摘要:
基于辽宁省辽阳市平原区不同地点、不同深度粉质黏土的土工试验结果, 采用一元线性回归分析, 对粉质黏土16种物理力学指标的变异性及相互间关系进行数理统计. 研究结果表明: 1)不同深度、不同地点的土质类型主要是粉质黏土, 其含水率较高, 且多呈湿、可塑状态; 2)粉质黏土湿密度、天然重度、土粒比重、饱和度、孔隙率、液限、塑限7种物理指标的变异系数均较小, 压缩系数、压缩模量、黏聚力、内摩擦角4种力学指标的变异系数较大; 3)粉质黏土湿密度与天然重度、液限与塑性指数具有良好的线性关系.
Abstract:Based on the soil test results of silty clay at different sites and depths in the plain area of Liaoyang City, Liaoning Province, the variability and correlation of 16 physical and mechanical indexes of silty clay are analyzed by unitary linear regression analysis. The results show that the soil types at different depths and locations are dominated by silty clay, with high water content, mostly in wet and plastic state. The variation coefficients of 7 physical indexes of silty clay including wet density, natural gravity, specific gravity of soil particles, saturation, porosity, liquid limit and plastic limit are small, while the variation coefficients of 4 mechanical indexes such as compression coefficient, compression modulus, cohesion and internal friction angle are large. There is a good linear relation between wet density and natural weight-specific density, and between liquid limit and plastic index of silty clay.
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Key words:
- plain area /
- silty clay /
- soil test /
- physical and mechanical index /
- regression analysis /
- Liaoning Province
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表 1 辽阳市平原区粉质黏土物理力学指标统计表
Table 1. Statistics of physical and mechanical indexes of silty clay in the plain area of Liaoyang City
指标名称 代号/单位 总体指标值 不同成因指标均值 最小值 最大值 平均值 标准差 变异系数 Qhal Qhpal Qppal Qpspal 含水率 ω/% 9.00 44.10 25.85 3.63 0.14 24.74 26.22 25.08 25.87 湿密度 ρ/（g/cm3） 1.71 2.13 1.93 0.07 0.03 1.94 1.93 1.91 1.93 天然重度 γ/（kN/m3） 16.77 20.89 18.90 0.64 0.03 19.09 18.97 18.75 18.94 土粒比重 Gs /（g/cm3） 2.66 2.78 2.72 0.01 0.00 2.72 2.72 2.72 2.73 饱和度 Sr /% 44.70 99.90 90.29 6.42 0.07 90.24 91.44 87.23 90.56 孔隙率 n/% 0.81 53.80 43.67 3.58 0.08 42.55 43.71 43.83 43.71 孔隙比 eo 0.49 1.29 0.78 0.10 0.13 0.75 0.78 0.78 0.78 固结荷重 ei 0.42 1.04 0.71 0.08 0.11 0.67 0.70 0.71 0.71 液限 ωL /% 25.80 39.40 33.33 2.58 0.08 32.41 33.12 33.08 34.37 塑限 ωP /% 15.40 27.10 19.44 1.21 0.06 19.12 19.46 19.20 19.76 塑性指数 IP 9.80 17.30 13.88 1.74 0.13 12.47 13.66 13.88 14.61 液性指数 IL -0.73 1.38 0.47 0.24 0.52 1.25 0.51 0.42 0.43 压缩系数 a1-2 /MPa-1 0.09 1.47 0.37 0.15 0.41 0.35 0.36 0.39 0.33 压缩模量 Es1-2 /MPa 1.56 19.40 5.61 2.30 0.41 5.61 5.42 5.13 6.28 黏聚力 c/kPa 10.00 85.50 30.08 8.48 0.28 29.88 28.65 30.99 33.37 内摩擦角 φ/（°） 3.40 24.60 15.16 2.94 0.19 16.34 15.85 16.45 15.43 
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表 2 辽阳市平原区粉质黏土物理力学指标相关性统计表
Table 2. Statistics of physical and mechanical index correlation of silty clay in the plain area of Liaoyang City
指标 ω ρ γ Gs Sr n eo ei ωL ωP IP IL a1-2 Es1-2 c φ ω 1 ρ -0.539 1 γ -0.494 0.948 1 Gs 0.193 -0.018 -0.015 1 Sr 0.383 0.517 0.517 0.095 1 n 0.716 -0.709 -0.745 0.121 0.045 1 eo 0.835 -0.893 -0.833 0.187 -0.132 0.791 1 ei 0.642 -0.749 -0.785 0.168 -0.173 0.715 0.803 1 ωL 0.377 -0.164 -0.154 0.506 0.185 0.315 0.325 0.426 1 ωP 0.418 -0.264 -0.270 0.260 0.130 0.368 0.392 0.484 0.812 1 IP 0.267 -0.059 -0.040 0.568 0.183 0.210 0.208 0.293 0.914 0.506 1 IL 0.869 -0.469 -0.426 -0.029 0.345 0.609 0.707 0.455 -0.090 -0.011 -0.125 1 a1-2 0.685 -0.689 -0.642 0.031 -0.062 0.636 0.786 0.484 0.089 0.095 0.066 0.668 1 Es1-2 -0.489 0.508 0.489 0.084 0.035 -0.502 -0.550 -0.354 0.037 0.007 0.050 -0.531 -0.794 1 c -0.541 0.423 0.427 0.268 -0.151 -0.577 -0.512 -0.274 0.233 0.060 0.302 -0.689 -0.575 0.484 1 φ -0.369 0.258 0.301 0.222 -0.139 -0.332 -0.346 -0.297 -0.173 -0.238 -0.091 -0.294 -0.345 0.265 0.538 1
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[1] 史健, 马剑秋, 崔恩革. 盘锦地区粘土物理力学指标的相关性分析[J]. 山西建筑, 2007, 33(20): 83-84. doi: 10.3969/j.issn.1009-6825.2007.20.052
Shi J, Ma J Q, Cui E G. Interrelation of physical and mechanical indexes on clay of Panjin[J]. Shanxi Architecture, 2007, 33(20): 83-84. doi: 10.3969/j.issn.1009-6825.2007.20.052
[2] 佟智强, 杨洪祥, 宋立东, 等. 黑龙江省牡丹江市自然资源禀赋特征及开发潜力分析[J]. 地质与资源, 2023, 32(5): 599-607. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10527.shtml
Tong Z Q, Yang H X, Song L D, et al. Characteristics of natural resources endowment and development potential in Mudanjiang City, Heilongjiang Province. Geology and Resources, 2023, 32(5): 599- 607. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10527.shtml
[3] 赵怀东. 辽阳市某化工公司工程地质勘察与基础设计探讨[J]. 吉林地质, 2009, 28(1): 80-83, 88. doi: 10.3969/j.issn.1001-2427.2009.01.022
Zhao H D. Engineering geological investigation and foundation design of a chemical factory in Liaoyang City[J]. Jilin Geology, 2009, 28(1): 80-83, 88. doi: 10.3969/j.issn.1001-2427.2009.01.022
[4] 石旭飞, 代雅建, 崔健, 等. 沈阳城市地质环境问题研究[J]. 地质与资源, 2017, 26(4): 390-396. doi: 10.3969/j.issn.1671-1947.2017.04.010
Shi X F, Dai Y J, Cui J, et al. Study on the geological environment of Shenyang City[J]. Geology and Resources, 2017, 26(4): 390-396. doi: 10.3969/j.issn.1671-1947.2017.04.010
[5] 薛振声, 成益洋, 崔康伟, 等. 含水率对新近系粉质黏土强度影响的试验研究[J]. 人民黄河, 2016, 38(4): 125-128. doi: 10.3969/j.issn.1000-1379.2016.04.030
Xue Z S, Cheng Y Y, Cui K W, et al. Testing study on effects of moisture content on strength of Neogene silty clay[J]. Yellow River, 2016, 38(4): 125-128. doi: 10.3969/j.issn.1000-1379.2016.04.030
[6] 杨丰年, 李向群, 王海鹏. 长春地区老黏土地基承载力确定方法的探讨[J]. 地质与资源, 2015, 24(2): 157-159. doi: 10.3969/j.issn.1671-1947.2015.02.014
Yang F N, Li X Q, Wang H P. Discussion on the determination method of old clay foundation bearing capacity in Changchun region[J]. Geology and Resources, 2015, 24(2): 157-159. doi: 10.3969/j.issn.1671-1947.2015.02.014
[7] 涂春霖, 尹林虎, 顾亚. 云南遮放盆地粉质黏土物理力学指标相关性分析[J]. 矿产勘查, 2021, 12(9): 1979-1984. doi: 10.3969/j.issn.1674-7801.2021.09.016
Tu C L, Yin L H, Gu Y. Correlation analysis on physical and mechanical indexes of the silty clay in Zhefang Basin of Yunnan Province[J]. Mineral Exploration, 2021, 12(9): 1979-1984. doi: 10.3969/j.issn.1674-7801.2021.09.016
[8] 王建伟, 佟智强, 刘浩, 等. 牡丹江市主城区粉质黏土物理力学指标相关性分析[J]. 矿产与地质, 2022, 36(6): 1243-1248. https://www.cnki.com.cn/Article/CJFDTOTAL-KCYD202206019.htm
Wang J W, Tong Z Q, Liu H, et al. Correlation analysis of physical and mechanical indexes of silty clay in the main urban area of Mudanjiang City[J]. Mineral Resources and Geology, 2022, 36(6): 1243-1248. https://www.cnki.com.cn/Article/CJFDTOTAL-KCYD202206019.htm
[9] 韩素君. 北京地区土工试验成果及综合分析[J]. 岩土工程技术, 2019, 33(1): 40-45, 48. doi: 10.3969/j.issn.1007-2993.2019.01.010
Han S J. The comprehensive analysis of the soil test results in Beijing area[J]. Geotechnical Engineering Technique, 2019, 33(1): 40-45, 48. doi: 10.3969/j.issn.1007-2993.2019.01.010
[10] 何险高, 李建常, 汪凌. 美标欧标和国标关于土工试验成果分析研究[J]. 山西建筑, 2020, 46(15): 51-53. doi: 10.3969/j.issn.1009-6825.2020.15.021
He X G, Li J C, Wang L. Analysis and research on soil test results by American standard, European standard and Chinese standard[J]. Shanxi Architecture, 2020, 46(15): 51-53. doi: 10.3969/j.issn.1009-6825.2020.15.021
[11] 郭海朋, 杨祥宇, 王云龙, 等. 廊坊沉降区深层黏性土压缩指数相关性分析[J]. 土木工程与管理学报, 2022, 39(2): 32-37. https://www.cnki.com.cn/Article/CJFDTOTAL-WHCJ202202006.htm
Guo H P, Yang X Y, Wang Y L, et al. Correlation analysis of compression index of deep clayey soil in the settlement area of Langfang City[J]. Journal of Civil Engineering and Management, 2022, 39(2): 32-37. https://www.cnki.com.cn/Article/CJFDTOTAL-WHCJ202202006.htm
[12] 寇晓岚, 齐芳云, 李双柏. 黄土地区土工试验成果分析[J]. 勘测设计, 2013(4): 20-23. doi: 10.3969/j.issn.1671-9913.2013.04.008
Kou X L, Qi F Y, Li S B. Experience of soil test data analysis in loess region[J]. Electric Power Survey & Design, 2013(4): 20-23. doi: 10.3969/j.issn.1671-9913.2013.04.008
[13] 王丽, 梁鸿. 含水率对粉质粘土抗剪强度的影响研究[J]. 内蒙古农业大学学报(自然科学版), 2009, 30(1): 170-174, 195. https://www.cnki.com.cn/Article/CJFDTOTAL-NMGM200901036.htm
Wang L, Liang H. The influence of the water ratio on the shearing strength of silty clay[J]. Journal of Inner Mongolia Agricultural University (Natural Science Edition), 2009, 30(1): 170-174, 195. https://www.cnki.com.cn/Article/CJFDTOTAL-NMGM200901036.htm
[14] 尧俊凯, 陈锋, 闫宏业, 等. 东北地区粉质黏土湿陷系数与物理性质指标的相关性[J]. 铁道建筑, 2019, 59(2): 50-53. https://www.cnki.com.cn/Article/CJFDTOTAL-TDJZ201902013.htm
Rao J K, Chen F, Yan H Y, et al. Correlation between collapsibility coefficient and physical properties of silty clay in Northeast China[J]. Railway Engineering, 2019, 59(2): 50-53. https://www.cnki.com.cn/Article/CJFDTOTAL-TDJZ201902013.htm
[15] 孙峰. 沈阳浅层粉质黏土承载力与浅基础地基承载力[J]. 岩土工程技术, 2016, 30(6): 293-297. doi: 10.3969/j.issn.1007-2993.2016.06.007
Sun F. Research on bearing capacity of shallow silty clay and shallow foundation in Shenyang[J]. Geotechnical Engineering Technique, 2016, 30(6): 293-297. doi: 10.3969/j.issn.1007-2993.2016.06.007
[16] 罗红, 唐红梅. 重庆库区滑带粉质黏土强度参数相关性研究[J]. 重庆交通大学学报(自然科学版), 2019, 28(1): 80-83, 138. https://www.cnki.com.cn/Article/CJFDTOTAL-CQJT200901021.htm
Luo H, Tang H M. Correlation study on strength parameters of slide surface silty clay of landslide in Chongqing reservoir area[J]. Journal of Chongqing Jiaotong University (Natural Sciences), 2019, 28(1): 80-83, 138. https://www.cnki.com.cn/Article/CJFDTOTAL-CQJT200901021.htm
[17] 陈井胜, 邢德和, 刘淼, 等. 辽宁辽阳地区辽河群酸性火山岩锆石U-Pb年代学及其地质意义[J]. 岩石学报, 2017, 33(9): 2792- 2810. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201709010.htm
Chen J S, Xing D H, Liu M, et al. Zircon U-Pb chronology and geological significance of felsic volcanic rocks in the Liaohe Group from the Liaoyang area, Liaoning Province[J]. Acta Petrologica Sinica, 2017, 33(9): 2792-2810. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201709010.htm
[18] 孙岐发, 田辉, 张扩. 下辽河平原地区历史地面沉降情况研究[J]. 地质与资源, 2014, 23(5): 450-452. doi: 10.3969/j.issn.1671-1947.2014.05.007
Sun Q F, Tian H, Zhang K. Study on the history of land subsidence in Lower Liaohe River Plain[J]. Geology and Resources, 2014, 23 (5): 450-452. doi: 10.3969/j.issn.1671-1947.2014.05.007
[19] 廖秋凤. 土工试验中应注意的问题及试验成果综合分析[J]. 四川建材, 2020, 46(12): 80-81. https://www.cnki.com.cn/Article/CJFDTOTAL-SCJZ202012040.htm
Liao Q F. Issues that should be paid attention to in geotechnical tests and comprehensive analysis of test results[J]. Sichuan Building Materials, 2020, 46(12): 80-81. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SCJZ202012040.htm
[20] 姚仁, 杜立志, 吕守航, 等. 长春地区粉质黏土导热系数与其物性参数相关性研究[J]. 世界地质, 2018, 37(3): 976-981. doi: 10.3969/j.issn.1004-5589.2018.03.031
Yao R, Du L Z, Lyu S H, et al. Correlation between thermal conductivity and physical properties of silty clay in Changchun area [J]. Global Geology, 2018, 37(3): 976-981. doi: 10.3969/j.issn.1004-5589.2018.03.031
[21] 唐军平, 何国东, 付旭, 等. 佛山地基软土物理力学指标间的相关性研究[J]. 地下空间与工程学报, 2018, 14(S2): 645-653, 659. https://www.cnki.com.cn/Article/CJFDTOTAL-BASE2018S2024.htm
Tang J P, He G D, Fu X, et al. Study on the relevance between the physico-mechanical parameters of foundation soft clay of Foshan[J]. Chinese Journal of Underground Space and Engineering, 2018, 14 (S2): 645-653, 659. https://www.cnki.com.cn/Article/CJFDTOTAL-BASE2018S2024.htm
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