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1 第 44 卷第 5 期煤田地质与勘探 Vol. 44 No 年 10 月 COAL GEOLOGY & EXPLORATION Oct. 016 文章编号 : (016) 煤炭勘查中岩土参数的统计分析李 ( 甘肃煤田地质局 / 甘肃煤炭地质勘查院, 甘肃兰州 ) : 基于岩土工程勘察规范中岩土参数标准值的确定方法, 就修正系数在置信度为 0.95 和 0.90 的简化公式进行了讨论, 并运用于煤炭勘查项目中具体力学参数的标准值计算结果表明, 工程实际中若遇试验数据不足, 置信度 0.95 和 0.90 修正系数的简化公式均具有足够的精度 ; 采用服从标准正态分布计算的置信度为 0.90 的单侧置信下限与采用正态分布计算的置信度为 0.95 的单侧置信下限相等 : 煤炭勘查 ; 岩土参数 ; 标准值 ; 修正系数 :TU45 :A DOI: /j.iss Statistical aalysis of geotechical parameters i coal exploratio 睿 LI Rui (Gasu Bureau of Coal Geological Exploratio/Gasu Provicial Coal Geological Exploratio Istitute, Lazhou , Chia) Abstract: Based o the method of stadard value of geotechical parameters i Norm for ivestigatio of geotechical egieerig, the simplified formulas of correctio factor i cofidece level of 0.95 ad 0.90 are discussed, ad applied to the calculatio of stadard values of mechaical parameters i coal exploratio. The result shows that the stadard values calculated by the said two formulae were close to that by the theortical look-up table method i small umber of test samples, ad oe-sided 90 percet cofidece lower limit obtaied by the stadard ormal distributio coicides with oe-sided 95 percet cofidece lower limit obtaied by the ormal distributio with the circumstaces of sample size of greater tha 50. Key words: coal exploratio; geotechical parameters; stadard value; correctio factor [1] [-5] [6] R c 收稿日期 : 作者简介 : (1977). leerig168@163.com 引用格式 :. [J] (5) LI Rui. Statistical aalysis of geotechical parameters i coal exploratio[j]. Coal Geology & Exploratio, 016, 44(5)

2 118 煤田地质与勘探第 44 卷 1 标准值的确定 [7] m (1) k s m k s s 1 t () t t 参数估计理论在岩土参数上的应用 [8] [9-19] X μ σ X (3) 1 i i1 σ Σ X X (4) μσ (3)(4) (5) [0-3] X X 1 X X ΣX i X μ ~t 1 S/ (6) 1S 1 ~ (7) S σ (6)(7) -1 t X T ~ t 1 (8) Y / 1-α X μ P t 11 (9) S/ μ 1-α S X t 1, (10) μ 1-α (5)(11) S X t 1 (11) X 1 t 1 (1) (1) 3 统计修正系数 s 的讨论 α=0.05 [4] 1α= s 1 (13) s 1 (14) 1 s 1t 1tFL 1 t (15) F(L) (13)(15) t (16) t (17) [5] (16) 3% [0] (17) =60 3% (16)(17) 1

3 第 5 期李睿 : 煤炭勘查中岩土参数的统计分析 119 Table 1 表 1 简化公式误差计算表 Error calculatio results of simplified formulas t / t / 工程应用 8 30 m 0 m R c 3 表置信度 1 α=0.95 岩石单轴饱和抗压强度标准值的计算结果 Table Stadard value calculatio results of saturated uiaxial compressive stregth o statistical cofidece level of 95% MPa φ m σ f δ γ s φ k 表 3 置信度 1 α=0.90 岩石单轴饱和抗压强度标准值的计算结果 Table 3 Stadard value calculatio results of saturated uiaxial compressive stregth o statistical cofidece level of 90% MPa φ m σ f δ γ s φ k

4 10 煤田地质与勘探第 44 卷 >50 N(0,1) 表 4 采用服从 N(0,1) 分布服从 N(μ,σ ) 分布计算单轴饱和抗压强度的单侧置信下限 Table 4 Oe-sided cofidece lower limits of ormal distributio ad atadard mormal distributio N(0,1) N(μ,σ ) N(0,1) 0.90 N(μ,σ ) 结论 a. b. c. > 参考文献 [1]. DZ/T 01500[S] []. [J]. 1994() GUANG Yaohua. Cofidece level of egieerig geological exploratio data[j]. Joural of Egieerig Geology1994() [3]. [J] (1) YAN ChufegLIU DogyaZHANG Jiahuiet al. The susceptibility aalysis of reliability for the probability distributio types of parameters i stregth criterio[j]. Chiese Joural of Rock Mechaics ad Egieerig199918(1) [4]. [J] (3)6 14. BAO Cheggag. Some problems of reliability aalysis o geotechical egieerig[j]. Geotechical Egieer1994(3) [5]. [J]. 0007(1)6 7. ZHANG Gaoig. Discussio o research of reliability of geotechical egieerig[j]. Hydrogeology ad Egieerig Geology0007(1)6 7 [6]. MT/T [S] [7]. GB [S]. 00. [8]. [M] [9]. [J]. 0013(1) SU YoghuaHE MachaoSUN Xiaomig. Approach o asymptotic approximatios of polyomials for probability desity fuctio of geotechics radom parameters[j]. Chiese Joural of Geotechical Egieerig0013(1) [10]. [J]. 0056(1) CHEN LihogCHEN ZuyuLIU Jimei. Probability distributio of soil stregth[j]. Rock ad Soil Mechaics0056(1) [11]. φc [J]. 000(1) FAN Migqiao. Probabilistic property of shear stregth parameters φ, c of refilled clay[j]. Joural of Najig Hydraulic Research Istitute000(1) [1]. ctaφ [J] (6) TAN ZhogshegGAO BoGUAN Baoshu. The probabilistic property of shear stregth parameters c ad taφ for rock mass aroud the tuel[j]. Chiese Joural of Geotechical Egieerig19991(6) [13]. [J]. 0019(1)6 67. NI WakuiHAN Qilog. Statistical aalysis of physical ad mechaical idexes of the typical loess[j]. Joural of Egieerig Geology0019(1)6 67. [14].

5 第 5 期李睿 : 煤炭勘查中岩土参数的统计分析 11 [J] (10) YAN ChuligDING DexiTANG Yiquet al. Probability distributio of mechaics parameters ad reliability exploratio of surroudig rock udergroud chamber[j]. Joural of Chia Coal Society01035(10) [15]. [J] (4) YANG YogJIANG GuichuWEN Juet al. Discussio ad applicatio of the statistical method of geotechical parameters ad its simplified calculatio formula[j]. Coal Geology & Exploratio01341(4) [16]. [J]. 009(3) LIU Xuemei. Studies o probability distributio of shear stregth idexes for several stratums i Hagzhou area[j]. Urba Geotechical Ivestigatio & Surveyig009(3) [17]. [J]. 018(3) LI HogyigTAN YuehuZHAO Hui. The statistical aalysis techique research o probability distributio of geotechical parameters of oe ladslide[j]. Chiese Joural of Udergroud Space ad Egieerig018(3) [18]. Mohr-Coulomb [J]. 0133(11)5 34. GONG FegqiagHOU ShagqiaYAN Xiaomig. Probability model deductio method of mohr-coulomb criteria parameters based o ormal iformatio diffusio priciple[j]. Chiese Joural of Rock Mechaics ad Egieerig013 3(11)5 34. [19]. [J] (36) MA JiweiWANG Zhiyi. Probability distributio of rock salt creep parameters based o multivariate ormal distributio[j]. Sciece & Techology Review01331(36) [0]. [J] (3)5 8. GAO Dazhao. Discussio of desig formula of geotechical parameters stadard values[j]. Geotechical Ivestigatio & Surveyig19965(3)5 8. [1]. [J] (3)5 7. WU ChagfuZHU XiagrogLIU XuemeiAalysis o statistical method for geotechical parameters based o curret code for geotechical ivestigatio[j]. Geotechical Ivestigatio & Surveyig00514(3)5 7. []. [J]. 0034(3)50 5. YAN TigsogLIU AiyuDENG Yihag. O reliability test of mechaical parameters of rock mass[j]. Joural of North Chia Istitute of Water Coservacy ad Hydroelectric Power003 4(3)50 5. [3]. [J]. 006(8) ZENG jiquahe RupigWANG JiahogResults processig ad parameters selectio of shear stregth test o rock[j]. Chiese Joural of Udergroud Space ad Egieerig006(8) [4]. GB [S] [5]. [J] ()6 64. HUANG KaPENG JiaguoLIU Baocheet al. The applied research o mathematical statistics i determiig the stadard value of geotechical parameters[j]. Highway Egieerig 01035()6 64. ( 责任编辑张宏 ) ( 上接第 116 页 ) [5] kn m [J] (5)7 31. LIAO TiahuiSHI WeiSHUI Weihouet al. Aalysis ad test o the effect of the deep backfill stregtheed by kn m high eergy level dyamic compactio[j]. Joural of Qigdao Techological Uiversity01031(5)7 31. [6] kn m [J] (11) TANG KeshegGUO Wei. Test o effective reiforcemet depth of collapsible loess foudatio improved by kn m eergy level dyamic compactio[j]. Costructio Techique 01039(11) [7]. JGJ79 01[S]. 01. [8]. [D] [9]. [D] [10]. [J] (10) LUAN ShuaiWANG FeglaiSHUI Weihou. Experimetal study o effective reiforcemet depth of high eergy level dyamic compactio of residual soil backfill foudatio[j]. Joural of Architectural Structure01435(10) [11] kn m [D] [1]. [D] ( 责任编辑张宏 )

01-0982.doc

01-0982.doc 第 32 卷第 7 期岩土工程学报 Vol.32 No.7 2010 年 7 月 Chinese Journal of Geotechnical Engineering July 2010 沿海碎石回填地基上高能级强夯系列试验对比研究年廷凯 1,2, 水伟厚 3, 李鸿江 4, 杨庆 1,2, 王玉立 (1. 大连理工