常用巖石力學(xué)參數(shù)

1、巖石名稱天然容重（Y）巖石名稱天然容重（Y）巖石名稱/KNin3/KNin3花崗巖23.0-28.0礫巖24.0-26.6新鮮花崗片麻巖閃長巖25.2-29.6石英砂巖26.1-27.0角閃片麻巖輝長巖25.5-29.8硅質(zhì)膠結(jié)砂巖25.0混合片麻巖斑巖27.0-27.4砂巖22.0-27.1片麻巖坊巖24.0-28.6堅(jiān)固的頁巖2&0片巖輝綠巖25.3-29.7砂質(zhì)頁巖26.0特別堅(jiān)硬的石英巖粗面巖23.0-26.7頁巖23.0-29.0片狀石英巖安山巖23.0-27.0硅質(zhì)灰?guī)r28.1-29.0大理巖玄武巖25.0-31.0白云質(zhì)灰?guī)r2&0白云巖凝灰?guī)r22.9-25.0泥質(zhì)灰?guī)r23.0板巖

2、凝灰角礫巖22.0-29.0灰?guī)r23.0-27.71蛇紋巖部分巖石的天然容重注：本表引自巖石力學(xué)與工程蔡美峰主編科學(xué)出版社出版巖石力學(xué)單軸壓縮彈模（E）/Gpa泊松比（V）單軸抗壓強(qiáng)度（oC）/Mpa單軸抗拉強(qiáng)度（0t）/Mpa主焦煤0.29-2.450.1-0.54.9-490.24-5.79無煙煤2.45-6.379.81-15.71.47-2.45頁巖8.83-22.60.09-0354.5-78.50.98-39.619.6-491.96-9.81砂質(zhì)頁巖15.7-23.70.15-0.2519.6-8831.96-17.739.2-68.62.94-11.8軟砂巖9.81-13.90

3、.05-03619.6-2942.94-19.6致密砂巖30.458.8-9&13.92-12.7石英砂巖59.8泥灰質(zhì)9.81-25.50.18-0359.81-2550.98-24.5石砂巖78.5-1374.9-12.7石灰?guī)r23.5-68.6白云巖44.1-83.40.20-035392245981111.4-153花崗巖30.4-82.80.17-03649-2453.92-28.498.1-147了81147玄武巖39.2-98.10.10-035147-2947.61-39.2196-245大理巖9.81-6730.2-0.3529.4-1864.90-19.678.5-1183

4、.92-12.7片麻巖15.5-5730.2-0.3549-2754.90-19.6157-1969.81-14.2石英巖40.2-1470.12-0.27883-491&33-39.4167-3438.83-343注：1、帶有橫線的格子中，橫線上方代表“范圍”,下方代表“一般.2、本表引自李世平編巖石力學(xué)簡明教程中國礦業(yè)大學(xué)出天然容重(y)/KNin329.0-33.027.6-30.524.0-26.323.0-30.029.0-29.230.0-33.028.0-29.026.0-27.021.0-27.023.1-27.526.0圍巖分類及巷道支護(hù)形式表圉巖分類用巖松動(dòng)圈/cm分類名稱

5、錨噴支護(hù)方式I0-40穩(wěn)定圍巖噴混凝上、短錨桿II40100較穩(wěn)定圍巖噴混凝上、短錨桿III100150一般圍巖錨桿、噴混凝土IV150-200軟巖密錨網(wǎng)、噴混凝土V200-300較軟巖常規(guī)方法較難支護(hù)VI300極軟巖常規(guī)方法較難支護(hù)夾層物質(zhì)成分對結(jié)構(gòu)而抗剪強(qiáng)度的影響軟弱夾層物質(zhì)成分摩擦系數(shù)粘結(jié)力/Mpa泥化夾層和夾泥層0.15-0.250.005-0.02破碎加泥層0.3-0.40.02-0.04破碎夾層0.5-0.60-0.1含鐵鐳質(zhì)角礫破碎夾層0.65-0.850.03-0.15粘聚力(c)內(nèi)摩擦角(O)抗彎強(qiáng)度0.98-9.8116-404.71-5.961.96-3.9228-353

6、.63-9.8111-601962943.92-5.8835-454.90-14.76.86462.45-44.19.81-15.24.12-70.632-704.12-58.89.81-2.7545-529.81-15.7E3(12u)E2(1+u)v=c+antan(p力學(xué)參數(shù)巖石名稱花崗巖粗玄武巖砂巖煤砂巖頁巖石灰?guī)r3.43-46.635-584.12-27.612.6-34.345-529.81-19.619.6-49.030-507.65-39.8448011.7-19.613.7-25551-5812.7-16.727.35014.7-74.552-58層面兩側(cè)巖石石灰?guī)r與煤層煤層

7、與頁巖交互層頁巖交互層與砂LU石中國煤礦錨固材幣備注整體性好可不支護(hù)料石腿亦可支護(hù)剛性支護(hù)輕微破壞剛性支護(hù)破壞很犬砸變瞬穩(wěn)走期圍君變形無穩(wěn)定期100-2507-2514-50100-35015-3525-6020-1704-258404-490.2-64-620-1704-258405-1002-1033030-2505-2510-50抗壓強(qiáng)度抗拉強(qiáng)度抗剪強(qiáng)度表1:錨桿常用材奉鋼筋類別材質(zhì)部標(biāo)代號直徑(mm)鋼號代號I3號Q235YB171-696-40II16猛16MnYB171-696-4028-40III25猛25MnSiYB171-696-40III5節(jié)A5YB171-656-40參巖

8、學(xué)文十SU婁設(shè)考體老GB50218-94容重y/kN/1113粘聚力c/MPa內(nèi)摩擦角(Pr彈模E/GPa泊松比P27303855250.225281.23455515250.20.2523250.41.235454150.250.321250.1-0.425350.830.30.420240.1300.4一些煤系地層層面力學(xué)參數(shù)的參考值粘聚力C/MPa內(nèi)摩擦角(Pr切向剛度系數(shù)KS/MPa法向剛度系數(shù)KN/MPa0.23024.59810.12514.75880.12514.75881及其性能屈服強(qiáng)度/Mpa極限強(qiáng)度/Mpa延伸率(%)5510240380252132052050016400580142805001915I基本性能桿體直徑mm毛截面積mm21620118254.520314.222380.124452.428615.8表2:錨桿常用圓鋼端而承載能力單位:kN3號鋼5號鋼16Mn鋼25MnSi鋼屈服載荷破斷載荷屈服載荷破斷載荷屈服載荷破斷載荷屈服載荷破斷載荷48.276.456.3100.168.3104.576.4116.661.196.771.3127.386.5132.396.7147.675.4119.48815