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1、桩的极限侧阻力标准值qsk (kPa )表528-1土的名称土的状态混凝土预制桩水下钻(冲)孔桩沉管灌注桩干作业钻孔桩填土20 2818 2615 2218 26淤泥11 1710 1691310 16淤泥质土20 2818 2615 2218 26黏性土Il > 121 2620 3416 2820 340.75 V Il<136 5034 4828 404480.50V Il< 0.7550 6648 6440 5248 620.25V Il< 0.5066 8264 7852 6362 760 V Il< 0.2582 9178 8863 7276 86Il
2、 <091 10188 9872 8086 96红粘土0.7V aw< 1.013 3212 3010 2512 300.5 V aw< 0.732 7430 7025 6830 70粉土e> 0.922 4422 4016 3220 400.75 < e< 0.942 64406032 5040 60ev 0.7564 8560 8050 6760 80细粉砂稍密22 4222 4016 3220 40中 密42 63406032 5040 60密实63 8560 8050 6760 80中砂中 密54 7450 7242 5850 70密实74 9572
3、 9058 7570 90粗砂中 密74 9574 9558 7550 70密实95 11695 11675 9270 90砾砂中密、密实11613811613592 110110130注： 对于尚未完成自重固结的填土和以生活垃圾为主的杂填土，不计算其侧阻力; aw为含水量，aw = 3 / LP；对于预制桩，根据土层埋深h，将qsk乘以下表修正系数土层埋深h ( m)<51020克0修正系数0.81.01.11.2桩的极限端阻力标准值qpk (kPa)表528-2土名称桩型预制桩入土深度(m)水下钻(冲)孔桩入土深度(m)土的状态h<99V h< 1616 V h<
4、30h> 3051015h> 301100 1300 0.75 V Il<12108406301300100150150250250300300 -450170019000.50V840170015001900 2300 200300350-450450550550 -750Il<075210025003200黏性土0.25V1500 23002700 3600 400500700-8008009009001000|L< 0.5023003000360044002500 38005100 5900 1000 1200 1400 0V Il< 0.257508
5、5038005100590068001200140016000.75 V ev840170013001900 2500 250350300-500450650650 -850粉土0.92100270034001500 2100 2700 3600 e< 0.7523003000360044005508006509007501000850100015001900 2100 粉砂稍密8001600210025003000200400350-500450600600 -7001400 2100 3000 3800 中密、密实2200300038004600400500700-800800900
6、90011002500 36004400 5300 1000 1200 细砂中密、密实550650900 “-10003800480057006500120015003600 5100 6300 7000 1300 1600 1700 中砂51006300720080008509501400170019005700 74008400 9500 2000 2300 2300 粗砂7400840095001030014001500220024002500砾砂6300 -105001500 -2500角砾、圆砾中密、密实7400 -116001800 -2800碎石、卵石8400 -12700200
7、0 -3000桩型沉管灌注桩入土深度(m)干作业钻孔桩入土深度(m)土名称土的状态51015> 15510151000 0.75 V Il<1400600600750750100014002004004007007009500.50V670110012001500 1800 4206307409509501200黏性土Il< 0.751500180020000.25V1300 23002700 3000 85011001500 1700 Il< 0.502200270030003500170019002500 35004000 4200 1600 2200 2600 0
8、V Il< 0.2529003900450050001800240028000.75 V ev1200 16001800 2100 60010001000 1400 粉土0.91600180021002600140016001800 22002500 3000 1200 1400 1600 e< 0.75220025003000350017001900210013001800 2000 1000 1500 粉砂稍密800130018002000240050090014001700中密、密实1300 1700180024002400 28002800 360085010001500
9、17001700 19001800 30003500 4000 1200 1900 2200 细砂22003400390049001400210024002800 44005200 5500 1800 2800 3300 中砂中密、密实32005000550070002000300035004500 67007700 8400 2900 4200 4900 粗砂5000720082009000320046005200砾砂5000,74003200 -5300角砾、圆砾中密、密实5900,7200碎石、卵石6700 -10000注： 砂土和碎石类土中桩的极限端阻力取值，要综合考虑土的密实度，桩端进入持力层的深度比hb/d，土愈密实，hb/d愈大，取值愈高表中沉管灌注桩系指带预制桩尖沉管灌注桩