岩石坚硬程度及岩体完整程度的划分

1、附录A岩石坚硬程度及岩体完整程度的划分A. 0. 1岩石坚硬程度根据现场观察进行定性划分应符合表A.0.1的规定。表A.0.1岩石坚硬程度的定性划分名称定性鉴定代表性岩石硬质岩坚硬岩锤击声清脆，有回弹，震手，难击碎：基本无吸水反应未风化微风化的花岗岩、闪长岩、辉绿 岩、玄武岩、安山岩、片麻岩、石英岩、硅 质砾岩、石英砂岩、硅质石灰岩等较硬岩锤击声较清脆，有轻微回 弹，稍震手，较难击碎： 有轻微吸水反应1.微风化的坚硬岩；未风化微风化的大理岩、板岩、石灰岩、 钙质砂岩等软质岩较软岩锤击声不清脆，无回弹，较 易击碎；指甲可刻出印痕1 .中风化的坚硬岩和较硬岩：2 .未风化微风化的凝灰岩、千枚岩、砂

2、质 泥岩、泥灰岩等软岩锤击声哑，无回弹，有凹痕， 易击碎；浸水后，可捏成团1 .强风化的坚硬岩和较硬岩：2 .中风化的较软岩：3 .未风化微风化的泥质砂岩、泥岩等极软岩锤击声哑，无回弹，有较深 凹痕，手可捏碎： 浸水后，可捏成团1 .风化的软岩2 .全风化的各种岩石3 .各种半成岩A. 0. 2岩体的完整程度的划分宜按表A.0.2的规定。表A.0.2岩体完整程度的划分名称结构而组数控制性结构而平均间距(m)代表性结构类型完整121.0整状结构较完整230.4-1.0块状结构较破碎30.2-0.4镶嵌状结构破碎3 1.0n wiI不冻胀W1.0i 1.0三1.03.5vn W6III胀冻3 18

3、0.5 1.0n wi1不冻胀 1.0口.03.5 1.023不考虑n 12,特强胀冻粉土3 W19 1.5n Wi1不冻胀W1.5i 1.5W1.53.5n W6III胀冻22 1.5W1.56n 1.5W1.5n!2V特强胀冻3 30不考虑粘性土3 W 3P+22.0n W1I不冻胀W2.0in 0.5II弱胀冻3 p+22.0W2.03.5vn W6III胀冻3 P+5V3 w 3 p+92.0W2.062.0W2.0n12V特强胀冻(owp+15不考虑注：3P一塑限含水量（%）： 3一冻前天然含水量在冻层内的平均值：盐渍化冻土不在表列：塑性指数大于22时.冻胀性降低一级：粒径小于0.0

4、05的颗粒含量大于60%时，为不冻胀土：碎石类上当充填物大于全部质量的40%时，其冻胀性按充填物上的类别判断*G.0. 2基础底面下允许残留冻土层厚度可按表GO.2查取。表G0.2建筑基底允许冻土层最大厚度/max(ni)基底平均压力110130150170190210弱冻胀 1.形础 方基采暖0.900.951.001.101.151.20不采暧0.700.800.951.001.051.10形础 条基采暖2.502.502.502.502.502.50不采暧2.202.502.502.502.502.50冻胀土形础 方基采暖0.650.700.750.800.85不采暧0.550.600.

5、650.700.75形础_ 条基采暖1.551.802.002.202.50不采暧1.151.351.551.751.95注：本表只计算法向冻胀力，如果基侧存在切向冻胀力，应采取防切向力措施。基础宽度小于0.6m时不适用，矩形基础取短边尺寸按方形基础计算。表中数据不适用于淤泥、淤泥质土和欠固结土。诃算基底平均压力时取永久荷载标准值乘以0.9,可以内插。不冻胀土如有地区经验，基础埋深可不受冻胀限制，无地区经验时可按弱冻胀上考虑。附录H岩基载荷试验要点H. 0.1本附录适用于确定完整、较完整岩基作为天然地基或桩基础持力层时的承载力。H. 0.2采用圆形刚性承压板，直径为300mm。当岩石埋藏深度较

6、大时，可采用钢筋混凝上桩, 但桩周需采取措施以消除桩身与土之间的摩擦力。H. 0.3测量系统的初始稳定读数观测：加压前，每隔lOmin读数一次，连续三次读数不变 可开始试验。H. 0.4加载方式：单循环加载，荷载逐级递增直到破坏，然后分级卸载。H. 0.5荷载分级，第一级加载值为预估设计荷载的1/5,以后每级为1/10。H. 0.6沉降量测读：加载后立即读数，以后每lOmin读数一次。H. 0.7稳定标准：连续三次读数之差均不大于0. 01mm。H. 0.8终止加载条件：当出现下述现象之一时，即可终止加载：1沉降量读数不断变化，在24小时内，沉降速率有增大的趋势：2压力加不上或勉强加上而不能保

7、持稳定。注：若限于加载能力，荷载也应增加到不少于设计要求的两倍。H. 0.9卸载观测：每级卸载为加载时的两倍，如为奇数，第一级可为三倍。每级卸载后， 隔lOmin测读一次，测读三次后可卸下一级荷载。全部卸载后，当测读到半小时回弹量小 于0.01mm时，即认为稳定。H. 0. 10岩石地基承载力的确定1对应于Ps曲线上起始直线段的终点为比例界限。符合终止加载条件的前一级荷 载为极限荷载,将极限荷载除以3的安全系数，所得值与对应于比例界限的荷载相比较， 取小值；2每个场地载荷试验的数量不应少于3个，取最小值作为岩石地基承载力特征值。3岩石地基承载力不进行深宽修正。108附录J岩石单轴抗压强度试验要

8、点J. 0.1试料可用钻孔的岩心或坑、槽探中采取的岩块。J.0.2岩样尺寸一般为OSOmmXIOOmm,数量不应少于六个，进行饱和处理。J. 0.3在压力机上以每秒500800kPa的加载速度加荷，直到试样破坏为止，记下最大加 载，做好试验前后的试样描述。J. 0. 4根据参加统计的一组试样的试验值计算其平均值、标准差、变异系数，取岩石饱和 单轴抗压强度的标准值为： 备二办/(J. 0. 4-1)一 1.7044.678、，,T 八，ip-1- ( + )3(J. 0. 4-2)y/n n-式中：Q岩石饱和单轴抗压强度平均值； %岩石饱和单轴抗压强度标准值； 敏一一统计修正系数：A一试样个数；

9、6变异系数。108附录K附加应力系数a、平均附加应力系数dK.0.1矩形面积上均布荷载作用下角点的附加应力系数a、平的附加应力系数次表K.0.1)8表K.0.1-1矩形面积上均布荷载作用下角点附加应力系数Q1.01.21.41.6182.03.04.05.06010.0条形0.00.2500.2500.2500.2500.2500.2500.2500.2500.2500.25C0.2500.2500.20.2490.2490.2490.24?0.2490.2490.2490.2490.2490.2490.2490.2490.40.2400.2420.2450.2430.2440.2440.24

10、40.2440.2440.2440.2440.2440.60.2230.2280.2300.2320.2320.2330.2340.2340.2340.2340.2340.2340.80.2000.2070.2120.2150.2160.2180.2200.220Q2200.2200.2200.2201.00.17501850.1910.1950.1980.2000.2030.2040.2040.2040.2050.2051.20.1520.1630.1710.1760.1790.1820.1870.1880.1890.1890.1890.1891.40.1J101420.1510.1570.

11、1610.1640.1710.1730.1740.1740.1740.1741.60.11201240.1330.1400.1450.1480.1570.1590.1600.1600.1600.1601.S0.0970.1080.1170.1240.1290.1330.1430.1优0.1470.1480.14S0.1482.00.0840.0950.1030.1100.1160.1200.1310.1350.1360.1370.1370.1372.20.0730.0830.0920.0980.1040.1080.1210.1250.1250.1270.1250.1282.40.0640.07

12、30.0810.0880.0930.0980.1110.1160.1180.1180.1190.1192.60.0570.0650.0720.0790.0840.0890.1020.1070.1100.1110.1120.1122.80.0500.0580.0650.0710.0760.0800.0940.1000.1020.1040.1050.1053.00.0450.0520.0580.0640.0690.0730.0870.0930.0960.0970.0990.0993 20.0400.0470.0530.0580.0630.0670.0810.0870.0900.0920.0930.

13、0943 40.0360.0420.0480.0530.0570.0610.0750.0810.0850.0860.0880.0893.60.0330.0380.0430.0480.0520.0560.0690.0760.0800.0820.0840.0843.80.0300.0550.0400.0440.0490.0520.0050.0720.0750.0770.0800.0803 / b/ / b1.01.21.41.6L8203.04f506.010.0条形4.00.0270.0320.0369.0400.0440.0480.0600.0670.0710 0730.0760.0764.2

14、0.0250.0290.0330.0370.0410.0440 0560.0630.0670.0700.0720.0754.40.0230.0270.0310.0340.03 S0.0410.0530.0600.0640.0660.0690.0704.60.0210.0250.02S0 0320.0350.05S0 0490.0560.0610.0630.0660.Q674.S0.0190.0230.0260.0290.0320.(050 0460.0550.0580.0600.0640.0645.00.01S0.0210.024a. 0270.0300.0330 0430.0500.0550

15、.0570.060.0626.00.0130.0150.0170.0200.0220.0240 0330.0390.0430.0460.0510.0527.00.0090.0110.0130.0150.0160.0180.0250.0310.0350.03S0.0430.045S.00.0070.0090.0100.0110.01 S0.0140.0200.0250.0280310.0370.0399.00.0060.0070.0080.0090.0100.0110.0160.0200.02400260.0320.03510.00.0050.0060.0070.007O.OOS(LOW0.01

16、30.0170.0200.0220.02S0.05212.00.0030.0040.0050.0050.0060.0060.0090.0120.0140.0170.0220.02614.00.0020.0030.0030.0040.0040.0050.0070.0090.0110130.0150.02316.00.0020.0020.0030.0030.0050,M40.0050.0070.M900100.0140.0201S.00.0010.0020.0020.0020.0050.M30.0040.0060.M7O.OOS0.0120.0 IS20.00.0010.0010.0029.002

17、0.0020.0020.0040.0050.CKJ60.00700100.01625.0a.ooi0.0010.0019.0010.0010.0020.0020.0030.M40.0040.0070.01530.0O.OT0.0010.0010.0010.000.0010.0020.0020.0030.002O.(W50.01135.00.0000.0000.0010.0010.0010.0010.0010.0020.0020.0020.0040.00940.00.0000.0000.000a. ooo0.001O.CKll0.0010.0010.0010.0020.003O.&OS注：T础长

18、度（m）；占一基础宽度30；1计算点离基础底面垂直宛离（m）.K.0.2矩形面积上三角形分布荷载作用下的附加威力系数a,平均附加应力系数G （表 K.0.2）,K.03圆形面积上均布荷曩作用下中点的附加应力系数a、平均附加应力系数片（表K.0.3）,K.0.4圆形面积上三角形分布荷载作用下边点的附加应力系数a、平均附加应力系 数 （表 R0.4）,表k.0.1-2 矩形面积上均布荷载作用下角点的平均附加应力系数a1.01.21.41.61.82.02.42.83.23.64.05.010.00.00.25000.25000.25000.25000.25000.25000.25000.25000

19、.25000.25000.25000.25000.25000.20.24960.24970.24970.24980.24980.24980.249$0.24980.24980.24930.249S0.24980.249S0.40 24740.24790.24810.24830.24830.24840.24850.24850.2485024850.24850.24850.24850.60.24230.24370.24440.24480.24510.24520.24540.24550.2455024550.24550.24550J4560.80.23460.23720.23870.23950.24

20、000.24030.24070.240S0.24090.24090.24100.24100.24101.00.22520.22910.23130.23260.23350.23400.23460.2349023510.2352023520.23530.23531.20.21490.21990.22290.22480.22600.22680.22780.22820.22850.22860.22870.22880J2S91.40.20430.21020.21400.21640.21800.21910.22040.22110.22150.22170.221S0.22200.22211.60.19390

21、.20060.20490.20790.20990.21130.21300.21380.2143021460.214S0.21500.21521.80.18400.19120.19600.19940.20180.20340.20550.20660.20730.20770.20790.20820.20342.00.17460.18220.18750.19120.19380.19580.19820.19960.20040.20090.20120.20150.20182.20.16590.17370.17930.18330.18620.18830.19110.1927019370.19430.1947

22、0.19520.19552.40.15780.16570.17150.17570.17890.18120.18430.18620.18730.18800.18850.18900.18952.60.15030.15S30.16420.16860.17190.17450.17790.17990.1812O.L82O0.18250.18320.18382.80.14330.15140.15740.16190.16540.16800.17170.17390.1753”7630.17690.17770.17843.00.13690.14490.15100.15560.15920.161?0.16580.

23、16820.16980.170S0.17150.17250.17333.20.13100.13900.14500.14970.15350.15620.16020.16280.16450.16570.16640.16750.16853.40.12560.13340.13940.14410.14780.15080.15500.15770.1595016070.16160.16280.16393.60.12050.12820.13420.13890.14270.14560.15000.15280.15480.15610.15700.15830.15953.80.11580.12340.12930.1

24、3400.13780.14080.14520.14820.15020.15160.15260.15410.1554续表z/1.01.21.41.61.82.02.42.83.23.64.05.010.04.00.11140.11890.12480.12940.13320.13620.14080.14380.14590.14740.14850J50O0.15164.20.10730.11470.12050.12510.12890.13190.13650.13960.141S0.14340.14450.14620.14794.40.10350.11070.11640.12100.12480.127

25、90.13250.13570.13790.13960.14070.14250.14444.60.10000.10700.11270.11720.12090.12400.12870.13190.13420.13590.13710.13900.14104.80.09670.10360.10910.11360.11730.12040.12500.12830.13070.13240.13370.13570.13795.00.09350.10030.10570.11020.11390.11690.12160.12490.12730.12910.13040.13250.134g5.20.09060.097

26、20.10260.10700.11060.11360.11830.12170.12410.12590.12730.12950.13205.40.0S780.09430.09960.10390.10750.11050.11520.11860J2110.12290.1243012650.12925.60.08520.09160.09680.10100.10460.10760.11220.11560.11810.12000.12150J23S0.H665.80.08280.08900.09410.09830.10180.10470.10940.11280J1530.11720.11870.12110

27、.12406.00.08050.08660.09160.09570.09910.10210.10670.11010.11260.11460.11610.11850.12166.20.07830.08420.0S910.09320.09660.09950.10410.10750_11010.11200.11360.11610.119S6.40.07620.08200.08690.09090.09420.09710.10160.10500JO760.10960.11110J1370.11716.60.07420.07990.08470.08860.09190.09480.09930.10270.1

28、0530.10750.10880.11140.11496.80.07230.07790.0S260.08650.08980.09260.09700.10040.10300.10500.1066040920.11297.00.07050.07610.08060.08440.08770.09040.09490.0982OJOOS0.10280.10440JO710.11097.20.06880.07420.07870.08250.08570.08840.09280.09620.09870.100S0.10230.10510.10907.40.06720.07250.07690.OS060.0838

29、0.08650.09080.09420 09670.09880.10040.10310.10717.60.06560.07090.07520.07890.08200.0S460.08890.09220 09480.09680.09S40.10120.10”7.80.06420.06930.07360.07710.08020.08280.08710.09040.09290.09500.09660 09940.1036:1.0L21.4L61.82.02.42.83.23.64.05.010.08.00.06270.06780.07200.07550.07850.08110.08530.08S60

30、.09120.09320.09480.09760J0208.20.06U0.06650.07050.07390.07690.07950.08370.08690.08940.09140.09310.09590.10048.40.06010.06490.06900.07240.07540.07790.08200.08520.08780.08930.09140.09430 093S8.60.05880.06360.06760.07100.07390.07640.08050.08360.08620.08S20.08980.09270.09738.80.05760.06230.06630.06960.0

31、724.0X17490.07900.08210.08460.08660.09820.09120.09599.20.05540.05990.06370.060.06970.07210.07610.07920.08170.08370.08530.08S20.09319.60.05350.0?770.06140.06450.06720.06960.07340.07650.07390.08090.08250.08550.090510.00.05U0.05560.05920.06220.06490.06720.07100.07390.07630.0 7S30.07990.08290 OSSO10.40.

32、04960.05370.05720.06010.06270.06490.06860.07160.07390.07590.07750.08040 08j710.80.04790.05190.05580.05810.06060.06280.06640.06930.07170.07360.07510.07810 0S3411.20.04630.05020.05350.05650.05870.06090.0/4006720.06950.07140.07300.0759色081311.60.04480.04S60.05180.05450.05690.05900.06250.06520.06750.069

33、40.07090.07380 079312.00.04350.04710.05020.05290.05520.05750.06060.06340.06560.06740.06900.07190 0-7412.80.04090.044-：0.04740.04990.05210.05410.05730.05990.06210.06390.06540.06920 073913.60.03870.042C：0.04480.04720.04930.05120.05430.05680.05890.06070.06210.06490 0-071440.03670.03980.04250.04480.0468

34、0.04860.05160.05400.05610.05770.05920.06190.067715.20.03490.03790.04040.04260.04460.04630.04920.0515005350.05510.05650.05920.06:016.00.03320.03610.03850.040-0.04250.04420.04690.04920.05110.05270.05400.05670.062518.00.02970.03230.03450.03640.03810.03960.04220.04420.04600.04750.CW0.05120.057020.00.026

35、90.02920.03120.03300.03450.03590.0383.0.04020.04.80.04320.4440.04620.0524矩形面积上三角形分布特或 作用下的附加应力廉微。与 平均附加应力豪敷公108表 K.0.2J0.20.40.6iZ/&121212/aaa7anaflana工/0.00.00000.00000.23000.25000.00000.00000.25000.25000.00000.00000.25000.25000.00.20.02230.01120.1S210.21610.02800.01400.21150.23080.02960.01480.2165

36、0.23330.20.40.02690.01790.10940.18100.04200.02450.16040.20840.04870.02700.17810.21530.40.60.02590.02070.07000.15050.04480.030g0.11650.18510.05600.03550.14050.19660.60口0.02320.02170.04800.12770.04210.03400.08530.16400.05530.04050.10950.17870.8LO0.02010.02170.03460.11040.03750.03510.06380.14610.05080.

37、04300.08520.16241.0L20.01710.02120.02600.09700.03240.03510.04910.13120.04500.04390.06730.14801.2L40.01450.02040.02020.02650.02780.03440.03860.11870.03920.04360.05400.13561.4L60.01230.01950.01600.07790.02380.03330.03100.10820.03390.0427O.044G0.12471.6L80.01050.01860.01300.07090.02040.03210.02540.09930.02940.04150.03630.11531.82.00.00900.01780.01080.06500.01760.03080.02110.09170.02550.04010.03040.10712.02.50.00630.01570.00720.05380.01250.02760.01400.07690.01830.03650.02050.09082.53.00.00460.01400.00510.04580.00920.02480.01000.06610.01350.03300.014S0.07863.