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桩的极限侧阻力标准值qsk(kPa)表5.2.8-1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2028182615221826淤 泥111710169131016淤泥质土2028182615221826黏性土IL121262034162820340.75IL13650344828404480.50IL0.7550664864405248620.25IL0.5066826478526362760IL0.258291788863727686IL091101889872808696红粘土0.7W1.013321230102512300.5W0.73274307025683070粉 土e0.922442240163220400.75e0.94264406032504060e0.756485608050676080细粉砂稍 密2242224016322040中 密4263406032504060密 实6385608050676080中 砂中 密5474507242585070密 实7495729058757090粗 砂中 密7495749558755070密 实951169511675927090砾 砂中密、密实11613811613592110110130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; W为含水量,W/L; 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)5102030修正系数0.81.01.11.2桩的极限端阻力标准值qpk(kPa)表5.2.8-2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h99h1616h30h3051015h30黏性土0.75IL1210840630130011001700130019001001501502502503003004500.50IL0.7584017001500210019002500230032002003003504504505505507500.25IL0.501500230023003000270036003600440040050070080080090090010000IL0.2525003800380051005100590059006800750850100012001200140014001600粉 土0.75e0.98401700130021001900270025003400250350300500450650650850e0.751500230021003000270036003600440055080065090075010008501000粉 砂稍 密8001600150021001900250021003000200400350500450600600700中密、密实140022002100300030003800380046004005007008008009009001100细 砂中密、密实2500380036004800440057005300650055065090010001000120012001500中 砂36005100510063006300720070008000850950130014001600170017001900粗 砂57007400740084008400950095001030014001500200022002300240023002500砾 砂中密、密实63001050015002500角砾、圆砾74001160018002800碎石、卵石84001270020003000土名称桩型沉管灌注桩入土深度 (m)干作业钻孔桩入土深度 (m)土的状态510151551015黏性土0.75IL14006006007507501000100014002004004007007009500.50IL0.75670110012001500150018001800200042063074095095012000.25IL0.5013002200230027002700300030003500850110015001700170019000IL0.2525002900350039004000450042005000160018002200240026002800粉 土0.75e0.91200160016001800180021002100260060010001000140014001600e0.7518002200220025002500300030003500120017001400190016002100粉 砂稍 密80013001300180018002000200024005009001000140015001700中密、密实1300170018002400240028002800360085010001500170017001900细 砂中密、密实18002200300034003500390040004900120014001900210022002400中 砂28003200440050005200550055007000180020002800300033003500粗 砂45005000670072007700820084009000290032004200460049005200砾 砂中密、密实5000840032005300角砾、圆砾59009200碎石、卵石670010000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。
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