1、35 3 2004 M6 2v(1 S)J. CENT. SOUTH UNIV. ( SCIENCE AND TECHNOLOGY) Vol. 35 No13June 2004 v8 y 3 !9 Z1, 2, a1(1.中南大学资源与安全工程学院,湖南长沙, 410083;2.中南大学勘测设计研究院,湖南长沙, 410075)K1:针对在山坡上特别是在高差较大的斜山坡这种复杂场地上建造大体量建筑时,结构设计难度大a基础处理困难的问题,分析了在斜山坡上建造大体量建筑时所应选择的基础形式,研究了该基础的设计及施工方法,分析了设计嵌岩桩长度时必需考虑桩端应力扩散在允许范围内,嵌岩桩的分类a埋置深度
2、a嵌岩桩承载力计算方法;此外,研究了人工挖孔嵌岩桩的桩径a扩大头尺寸a护壁a桩帽和地拉梁的设计,对施工及不良地质的处理提出了具体建议b研究结果表明:采用嵌岩桩基础是一种经济合理a切实可行的基础形式;场地a地基a基础与上部结构协调设计a计算a共同工作,形成多层次的空间稳定结构体系b1oM:斜山坡; 大体量建筑; 嵌岩桩; 地基ms |:TU475DS M :AcI|: 1672-7207( 2004)03-0484-06The design and construction of rock-socketed pile of large building on hillsideWANG Fang1
3、, YANG Zhi2, LI X-i bing1(1.School of Resources and Safety Engineering, Central SouthUniversity, Changsha 410083, China;2.Survey and Design Research Institute, Central SouthUniversity, Changsha 410075, China)Abstract:Design large building on the hillside is very special and it usually faces the laby
4、rinthine geologic for-mation, which makes the structure design and foundation treating difficulty, especially in the high-complicatedslope. The authors study the suitable foundation form for constructing large building on the hillside, systemat-ically discusses the foundation. s design and construct
5、ion methods, such as the essential factor of rock-socketedpile length design, the setting depthof the pile on stepground and the calculation method about bearing capac-ity of rock-socketed pile, and researches the structure design of artificial digging rock-socketed pile, construc-tion rules and bad
6、ness geology manipulations. The resultsshow that the rock-socketed pile is a kind of econom-ic, reasonable and feasible foundation form. The ground, subgrade, foundation and upper construction can becorresponded with designing, computing and common work, which makes a stable space structure system i
7、ndifferent levels.Key words:hillside; large building; rock-socketed pile; foundation soil“S gy ! ?Z, v8 yy/| b| y/v8()y H,| ,y t) y/b y/,a #Hq,y# !9 + y,; !9l : 2003- 08- 20 “:SE1 S “(50174056)Te: Z( 1960- ) , o, a , 2v q,p V,B) =,V Yya S !9T “ : Z, o, q;: 0731- 8879612( O) ; E-mail:yzwf mail. csu.
8、edu. cn+yT ,9 y !97 SY#bv8 8yy/ v| ,y !91o $ !9#) 51,2bN,TYV| y/ v8y !9 Ll, !9V$ !95b1 $ T4B f /,| Hq,v8 y v,y ! = V ?i f bv8 y v 7Wav t bW1 p, T O,yYV O.$ b$ Tv/+H54:a. y ? 1 p;b. yM1 p;c. y81 p;d.| |,v H !E !, ?G L $b| Mv,sXV,s r/bv8 y v,E y ( ,$ b f / 0,? $ T( / $),/N , $ M v, 1 7 rZ b$1p,7 7rZ r
9、8,/ Za ,yN, a/ $, H 3 b| , d 3 d M1 a ;c.y ! = r8bv8 y $T, . 8 FqYT Fr : , F !9, T, F ! u I n Tb d .8, s .8/ 12 :P= KsQsin A- ( Qcos Atan U+ CL)b(2)T: P/ !9, kPa; Ksw “ ,Ks= 1. 313 ; Q .r89#F; A . ; tan U y ; Cr8 = , kPa; L . , mbD8,v9 C M“ ;Cm “ ; f t1 F F bY f ,| , F F b| W ! , $8T1n ,4$ FMa FM? b
10、 :, 500 mmb5 d 1 p d 3 d V, H T, G d, b 0 ! , VG d ,YV 9 C , P $8 8, b6 ) | , #487#3 Z,: v8 y 3 !9 r, ira a Ca #, d V,v t Cb) t J, V/ZEba. d,9F “ , S =b S “ C d H,?_/ dbb. ) _ # ,_/() V E H, V ,Fv # , 1p; BS =2 , M , bc.,r , rC,CrA Lbd. l a 9 rA L 9 F rA Lbe. ,v ) , V F% aA F v, ( ) bf. a a F, V rA
11、LaA (A1 H9F ) , , 8 f bF U r:a. Ar, s,0 1. 00 m;b.Tr, L, (8. 30 MPa, (12. 40b, (55. 05 kPa,0. 00 10. 50 m,/ ;c.,T , ,123bN45b, vs V, by ! 23 m,yG, 4 b7. 2 $ !9| vsX V,y d 3 , nm1b P 3 ,; FM ?y. Tb l5 m 3,i P Z_ L e45b=, y$8b W ,F rTb7. 3 $ $ H, n5YVI# 7 | = 7 ,i I F r :b d ,T e d, , L=V H d ,YV9 e,
12、!9/ $,sF ) ,F y b , G, eV 3B S =, a #A r) , !91 pbm1 某体育馆基础平面图Fig. 1 Foundation plain of one gymnasium#488# 2v(1 S) 35 8 a.| |, 3 $ B6 a M L V$ Tbb. !9 3 H, e 1b Z_M H, Z_ |L( ) LM, 8 M; Z_M H,5 KHq Vh bc. s I n a vhaCa # !9ZEbd. !9| v8 y HA I naa$ x !9a9 a T,Q bW8“b ID: 1 Z, .| y !9#$) J . 2, .Y 3
13、3 + s J . F , 2000, 19(3) : 383 386.LIU Xing-yuan, ZHENG Ying-ren. Analysis on the parameters to af-fect behavior of rock-socketed segment of piles J . Chinese Journal ofRock Mechanics and Engineering, 2000, 19( 3) : 383 386. 8 JGJ 94) 94,y / ?S S .JGJ 94) 94, Technical code for building pile founda
14、tion S . 9 Randolph M F, Wroth CP. Analysis of deformation of vertically loadedpiles J . Journal of Geotechnical Engineering Division, SACE, 1978,12:1465 1488. 10 Z.y $ s s D .:yS/vy“, 1995.WANG Fang. Analysis and research of pile foundation under theforces in tall buildings D . Xi. an: Department o
15、f Architectural En-gineering, Xi. an University of Architectureand Technology, 1995. 11 Brahim B. Laboratory investigationof shaft resistance of rock- socketedpiers using the constant normal stiffness direct shear test J . Can-geotech J, 1994, 31: 40 41. 12 5r m6I.r m M .:Sy, 1994.Eiditor Committee
16、of Handbook of Rock and Soil Engineering. Hand-book of rock and soil engineering M . Beijing: Building IndustryPress of China, 1994. 13 GB 50191) 93, F !9?S S .GB 50191) 93, Codefor seismic design of structures S . 14 Pells P JN, TurnerR M. Elastic solutions for thedesign and analysisof rock-socked pilesJ . Can Geotech J, 1979, 16: 481 487.#489#3 Z,: v8 y 3 !9
