樁身應(yīng)力測試報告

1、樁身應(yīng)力測試報告第一章工程概況一、工程概述工程名稱工程地點委托單位建設(shè)單位勘察單位設(shè)計單位基樁施工單位監(jiān)理單位檢測目的測試樁身軸力與樁側(cè)摩阻力檢測依據(jù)規(guī)范 JGJ106-2003結(jié)構(gòu)類型剪力墻層數(shù)46、32 和 30 層樁型鉆孔灌注樁樁徑（mm）800設(shè)計樁長570m、 670m 和 800m樁端持力層粉質(zhì)粘土、細(xì)砂試樁總數(shù)14棵施工日期2008.1.312.10檢測樁數(shù)9棵檢測日期2010.3.3 3.26砼強度等級C35抽測類型部分檢測單樁豎向抗壓拔承載力特征值6000 kN要求最大加載值12000 kN檢測方法靜載荷慢速維持荷載法過程中測量鋼筋應(yīng)力計備注檢測現(xiàn)場溫度、濕度滿足檢測要求，無

2、強振動、強磁場等干擾；其中 8#11#樓 46 層，13#14#樓 32 層，12#樓 30 層。二、工程地質(zhì)條件（工程地質(zhì)柱狀圖）根據(jù)*院提供的巖土工程勘察報告，該場地工程地質(zhì)條件如下:三、檢測樁位示意圖四、鋼筋應(yīng)力計在樁身埋設(shè)位置示意圖L89.414.370.09.836.539073.69.414.363.536.539.045.71.S9.414.323.330.151.75",036.539.01.S9.414.323.330.151.736.539.0鋼筋應(yīng)力計在各試樁中位置示意圖鋼筋應(yīng)力計布置截面示意圖鋼筋應(yīng)力計埋設(shè)位置表序號123456J2J3J4J5J6789101

3、1J7J8J9J10J11121314J12J13J14土十口.樁號80m樁埋設(shè)深1.89.414.323.367m樁埋設(shè)深1.89.414.323.357m樁埋設(shè)深1.89.414.323.3為標(biāo)定斷30.136.530.136.530.136.5393939各深度均 為樁頂面 往下計算45.745.745.751.757.57051.757.551.75757m樁樁73.677.579.81#、3#、4#63.5676#、7#、8#9#、10#、11#67m樁樁80m樁樁第二章 樁身內(nèi)力測試一、檢測目的本次檢測目的是測定在各級荷載作用下樁身不同位置的軸力和樁 側(cè)摩阻力的分布情況。二、測試設(shè)

4、備及鋼筋測力計的埋設(shè)1、每樁鋼筋應(yīng)力計設(shè)置在各土層交界面處，每一個截面設(shè)2 只鋼筋測力計(基本呈 180°對稱布置) ，各鋼筋應(yīng)力計埋設(shè)截面的平、剖 面圖如前圖；2、JTM-V1000 振弦式鋼筋應(yīng)力計采用焊接法固定在鋼筋籠主筋上， 并與樁身縱軸線平行；3、連接在應(yīng)力計的電纜線用柔性材料保護，綁扎在鋼筋籠內(nèi)側(cè) 并引至地面；4、所有應(yīng)力計均用明顯標(biāo)記編號；5、儀器設(shè)備：檢測儀器設(shè)備采用 JTM-V1000 振弦式鋼筋應(yīng)力計、 JTM-V10B 型頻率讀數(shù)儀、集線箱等組成。三、測試原理1、假定：同一截面鋼筋與混凝土的變形協(xié)調(diào)；樁頂下砼彈性模量 相同； 位于樁頂面以下 1.8m 處的 J1

5、 截面所受軸力與靜載荷試驗的加 載量相同；2、樁身范圍內(nèi)砼彈性模量Ecij 的確定：將 J1 截面作為標(biāo)定截面值，用此推算各載荷等級下鋼筋應(yīng)變£ slj，由于假定砼與鋼筋協(xié)同受力，不出現(xiàn)裂縫，故砼應(yīng)變£ c1j= £ slj，由此可以算出各載荷等級下樁身砼的彈性模量Ecij。利用鋼筋應(yīng)變£ slj與樁身砼的彈性模量Ecij的兩組數(shù)據(jù)可以擬合出關(guān)于兩者之間的相關(guān)關(guān)系，根據(jù)其余各截面在各 載荷等級下鋼筋應(yīng)變£ sij，再通過其相關(guān)關(guān)系可以得到各截面在各載荷等級下的Ecij ；3、某一截面樁身軸力Pzj計算公式為：Pzj =Ecj .Aoj Cj E

6、sj *Asj ；sj =(Ecj *AojEsj * Asj) * ；sj(1)式中:Ej Esj 砼彈性模量、鋼筋彈性模量Es取2.0x 108(kPa)Acj、Asj 同一截面處砼面積、鋼筋總面積。£ cj、£ sj 同一截面處砼與鋼筋的應(yīng)變4、鋼筋應(yīng)力計受力的計算公式:2 2Psij二 k *(Fij - Fi0)= Es SijSijS Asi )式中:Psij 第i量測截面處在j級荷載下應(yīng)力計所受軸向力( kN) Fj 第i量測截面處在j級荷載下應(yīng)力計的實測頻率值 (Hz) Fio i截面處鋼筋應(yīng)力計的初始頻率值( Hz)K應(yīng)力計標(biāo)定系數(shù)Asi' 第 i

7、量測截面應(yīng)力計面積(cm2)5、第i量測截面處在第j級荷載下的樁身軸力：Pij = ECij Ac ；sijEsAsi * ；sij6、樁側(cè)摩阻力計算 fij:Rj - Ri ?。╥=1,14）（4）式中:九一i截面至i+1截面之間在第j級荷載量下的樁側(cè)摩阻力（kPa）Pij i截面在j級荷載量下的軸力（kN）Ai i截面至i+1截面之間的樁側(cè)面積（m2）四、測試步驟1、將弦式鋼筋應(yīng)力計按產(chǎn)品使用要求預(yù)埋在試樁樁身指定位置；2、弦式鋼筋應(yīng)力計宜放在兩種不同性質(zhì)土層的界面處，以測量樁在不同土層中的分層摩阻力。在地面處（或以上）應(yīng)設(shè)置一個測量斷面作為鋼筋 應(yīng)力計傳感器標(biāo)定斷面。鋼筋應(yīng)力計埋設(shè)斷面距

8、樁頂和樁底的距離不宜小 于1倍樁徑。在同一斷面處對稱設(shè)置 2個鋼筋應(yīng)力計。鋼筋計應(yīng)按主筋直 徑大小選擇。儀器的可測頻率范圍應(yīng)大于樁在最大加載時的頻率的1.2倍;3、使用前應(yīng)對鋼筋計逐個標(biāo)定，得出壓力（拉力）與頻率之間的關(guān)系。帶有接長桿弦式鋼筋計可焊接在主筋上；弦式鋼筋計通過與之匹配的頻率 儀進行測量，頻率儀的分辨力應(yīng)優(yōu)于或等于1Hz;五、實測曲線樁身軸力/kN207200 躺00 12000St4050W/#4> 4匸殆w/few8070-2400 *- 3600 -4800 *- 6000 *- 7200 *-840096001080030703040側(cè)摩阻力/kP且20 3050 6

9、0 7080 0 10020501#樁樁身軸力分布圖1#樁樁身側(cè)摩阻力分布圖樁身軸力/kN側(cè)摩阻力/kPa01020 30 4050 60 7060 90 10002400480072009600 12000010506070so24C0-亠 36004800-*- 60CO-*- 720034C0 -+ - 3600 -*-10500120CO樁身軸力/kN2400480072003600 L20CO側(cè)摩阻力/kPn102030 4050 SO 70 SO 90 130ID20304050607081.177777777./; Zz /仃/KW24004#樁樁身軸力分布圖樁身軸力/kN350

10、0430060007200340U9600108001200002400480072009g00 12000010304050607030 1i-. lum |sei*24003600*-48006000 *-7200 6400 9600 - 10SQ0 *-120004#樁樁身側(cè)摩阻力分布圖側(cè)摩阻力心Pa樁身軸力/kN02400 4SOO 72009600 12000側(cè)摩阻力/kPa01020 30 4050 60 70 SO 90 1001020g 30植M 40;/./厶？/+/-WZ/./Z/ jZ/ umia mini/ p ILUIU mi /./-2400 -3600 *-180

11、0 - 6000*- 72031020304050樁身軸力/kND 2400480Q72009600 12000側(cè)摩阻力/kPa0102030 4050 60 70SO 90 100u1020 g 30M 4050SO/特 * 匸火貳 山/ P購/-2400-3600 -*-4300 -*-6000 一 7200S400 -4_ 9600 一*- 10800 -*-120001020304050602鏗M-2400 - 360Q4SD0 - 6000 一* 72008400 船Mi -*- 10330 -*- 12000-2400 -*- 3SOO 4800-*-60007200 -L 840

12、09600 -*-10800 -*-12000側(cè)摩阻力壓P&1020 ：C 4050 60 7030 90 1002呂 君 鋅 貝 口- 2400 - 3600 *-4800- 000 *- 7200 -S400*- 960010800*-12000樁身軸力/kN240048007200 天 00 12000;/. /-!/ /+/ 躺似/鬥 W/三裁 hi/ 二眾. 時 三爲(wèi)9#樁樁身軸力分布圖9#樁樁身側(cè)摩阻力分布圖樁身軸力/kN02400480072009600 12000側(cè)摩阻力/kN01020 30 4050 EC 7080 90 100/7/MW一.一泅-<-3600

13、一4800- 60002 R 啟 E'Mm2400300<4SOO一6000一會一72008400+一960010800音一12000樁身軸力/kN側(cè)摩阻力/kPa30 4050 60 70 BO SO 100沏如 4SOO720096000 10 20 c 一 2400 - 3600 4S00*- 6000t- 7200 *- 8400*- 9600 *-10300#- 12000疋農(nóng)六、檢測成果匯總1#樁身軸力數(shù)據(jù)表（kN）截 面 序 號深度加載等級1234567J11 8240036004800600072008400IQ1.0n a2400on*i 7 %36004800

14、Ar7Q A6000envQ n7 2008400J2J3-IA94A A o14.3no o2017.3A eno Q3052.84078.15078.96225.27457.36523.61593.6nd n o2593.74 004 o3476.342 71.6odnn o5348.8AAA A QJ423.3on <1912.67Q9 Q1831.32547.394 co 73109.34111.65201.2J5J6-1730.1365on a7 3厶31469.3 d A AQ Q2 153.74 74 n q2533.23401.7OQ79 o4392.3QQQ7 Q623

15、.4cqA a1109.31710.3A Wk O2053.228 7 2.3383 7.3oi?|r4 nJ7J8-io39.0AC 7504.3979.6” *1 k 71555.2rec o1857.7*1 H7O 乓2646.5Ao3551.245.7屁*1 7263.7a p/* n415.7796.31072.51721.3a oye a2503.304 4 c oJ9 m n51.7106.270 7306.3a nn d573.6833.5 cu o1375.32115.2J1057.273.718.9122.130.5292.648.6495.872.4943.7229.11

16、478.6378.3J1273 811 419 833 951 275 6102 713(J1377 51 1 .r4 55 3WWb W7 69 7ff Vb V12 1 vr. f15 31 524O 1 OJ14f f bW3.8Vb W4.14.4V f5.71盜.17.81 7.09.4-11#樁身側(cè)壁摩阻力數(shù)據(jù)表(kPa)截面序 號深度范圍加載等級1234511.121 8.9 420 03628 64837 79448 22351 034-4975J1-J212 |31.8-9.49 4.14 320.03634 40528.64837 2803 7.79448 86748.22

17、365 5545 1.03471 16513 |414 3 23 330 10733 705峠0.00 f41 07151 38554 696f u58|4|523 3 30 110 550OO f Vv21 1821 .V ff 123 031V 1 bwOv33 709w'+b V w V41 538477峠w15.16£0.0 OU. 130 1.36 56 770£1.122 38127 566OO f Vw29 842峠 1 aWwO32 913f34J5-J616.1736 5.39 06.7706 22322.38 120 6422 7.56624 6

18、8529.84231 11532.9 13 .35 93734-62-25-308.J6-J717.1836.5.39.039 0.45 76.22319 03920.64233 48824.68545 0683 1.11546 63035.93 754 944J7-J8J8-J919|1039.0.45.745 751719.0395 13933.4887 25545.06814 76846.630-15.84923 16754.94422.94529 60845.7.51.7517 57 55.1397 7187.25512 63614.7 6819 277J9-J10J10-J11Id

19、d M O5I.7.57.5C7 c 7A H7.7184 7AA12.6369 CHA1 9.2ff7 7R723.1674 O 4.7729.60899 7AR57.570.070 H 7Q ft1.744A QOQ2.916A A QO7.7 6 713.47 722. 746A aJII-J12J12-J137 0.07 3.673.677.510.8290.704-1.1831.4791.625 2.6832.3434.23416.9656.4783#樁身軸力數(shù)據(jù)表(kN)加載等級1234567截面深序度號2 324205591622.636003078.22613.94800408

20、633469560005101.24296372 62486 5362.7J423 3962 91855 72553 73136 14132 95232 5630J530 1760 51 OVVb f1482 3盃 WO. f2150 2V 1 V Mb 125613425 34410 3Vv V5461636 5645 3i r o盜.v1122 81733 52071 3Wb V2890 83856 2479J739 0。峠 0.0598 51 1乙乙O1000 21 f 00.01567 8査U ff 1.01875 92662 8007。乙3573 1-449V ff -J8-194耳

21、7282 1AAR o816 51095 62539 845751 7282.1193 4446.3330 28 16.5595 31095.6862 917 43 .7 1390 62539.82133 7J91105 1.757 288 5146 1302 9511 2965 82 133 .71496 9U 1 U|117026 71 峠。.142 9w VJba w80 3U 1 1 乙120 3242 7396 8U 1 1112f u73 8乙。f15 2峠乙D23 438 11 乙 u.o55 680 3118 3JI21137 3.877 55 77 98 955.610 21

22、4 317 1JI3J14ff.5 7985.74.17. 94.58.95.210.27.114.39JIf.l10.13#樁身側(cè)壁摩阻力數(shù)據(jù)表（kPa）截面序 號深度范 圍加載等級12345|1-|21 8.9 418 01527 31837 36547 05549 809-4875|2-I39 4.14 31 Ob V 1 W35 18537 70250 08565 35971 936J2-J3J3-J4|4|51 峠.O14 3.23 335.18529 1653 7.70233 52050.08540 48765.35951 2927 1.93654.369AA A(A7 5 -58

23、4814.323.323 3 30 129.16511 84333.52021 84940.48 723 6105 1.29233 651J4-J5ir23.330. 1 on 4 qa 空11.8432 1.849nn oen23.6 1033.65 1on A AC4 1.40400 non48J5-J61730.136.57.1627 AAR22.350d q cd 925.906or 07930.44533.23036.28754.582noA4-45-26-J6-J736.539.0qq n 4耳 77.448A Q 7QA19.51226.3 7 2A A fi473 1.099

24、ar qqqJ7-J8IQ IQ39.045.77718. 790C OQQ32.8947 OQQ44.617A A AAQ46.339J8-J9 IQ Id A45.751.75.8827 4QA7.699A 9 ROQ14.669OA flEQI5.43I9A *1 9723.4I6J9-J10M A M d5 1.7-57.57.19612.62920.05924.12 729.142no Ad 7J10-J1157.5-70.0n 70 a1.967*1 07*13.2857.08612.44323.017onJ11-J12M O M270.073.61.271t CQC2.1554.

25、6647.15117.949a 700a nJ12-J13J13-J14I73.67 7.577.579.810.9690.2771.5810.5882.9790.6404.6320.5366.7330.9174截面深序度號123456712 31.89.414.323.324002038.91571.4895.6702.736003097.32552.71808.136.5 丨 595.139.0517.272- 7 AV7 7 r 5 51201O4.284007518.36598.55283.71 63772006317.25419.748004151.93445.22521.41315

26、8.314162.760005143.24256.8968727764-7LQO QI "介口 Cl OCOd A4 1 AA7 Ol1492.31 2 108.61 252 1.41 3453.1 I 44 7 3.2155 11195.71025.8402.9289.3135.832.717.51741.5 1531.2819.5 620.7321.345.231.56.8-42040.21821.7 1051.6802.7 467.375.542.78.35.22920.52685.31776.3 1428912.5 212.770.915.19.53867.83596.125

27、87.52168.21515.7 402.3133.719.810.648245132928020146118(-30截面序 號深度范圍加載等級12345M 194 Q a AA 0 nncOR Qd Q00 nonAA QC746.21879 070-46J1-J2IO IQI.8-9.4 Q A A A Q18.90526.3 18a a 99933.93044.85 774 Q77J2-J3io M9.4-14.3A A Q OQ Q3 7.962 9Q 07744.2225 7.385Af 0447 1.97 7 AR 耳Ad7 2.8 7 855.572AAJ3-J414.3-23.

28、32 on 429.87 7A a noy32.9 19a p 7040.84 1 nA d屁彳48.564J4-J5J5-J623.3-30.130.1-36.511.2876.68918.47818.44024.15422.82337.26729.91641.52133.1127l374#樁身側(cè)壁摩阻力數(shù)據(jù)表(kPa)J6736 5 39 012 39827 04033 47034 77537 433-435917 18W V-W W W V39 0 45 716 86636 992oo.r f v42 265。峠.f f V45 733w f .ro。53 98218 19W W V T

29、Wb f45 7 51 75 0207 53313 183f OO16 506vwb wQjk23 097VW27vO V w19 |10ff v 1 ff51 7 57 5vb V6 33210 5301 O 1 Q w20 5391 Vb W V V23 009£O W f35 364z f -44 -3529vJ w v 1 VM A M 4V 1 ffV ff VC7 c 7A A41 V w w V o 909Vb W W W Q 7QQ4 9 47407.0。峠99 97CJI0 -J1I111 |125f. 5-70.070 0 73 61.4321 0283.2821

30、 6808. 7891 51412.47 13 62522.2 7 515 672JII-JI2112 1137U.0-7 3.673 6 77 51.028 0 6941.6801 2751.5142 5203.6253 51015.6/25 6932911JI2-JI3J13-J147 3.6-7 7.577.5-7980.6940.2251.2750.2592.5200.4843.5 100.5365.6930.969II76#樁身軸力數(shù)據(jù)表（kN）截 面 序 號深度加載等級1234567111 8240036004800600072008400J11.8n a2400A QQO 736

31、00QA97 Q480060007 2008400<1J29.4A A Q1993.7A C7R A3027.9OCAQ A3968.15083.66225.27483.1OCQA AJ3 A14.31576.42509.4A Qd d %3 196.342 7 1.65348.84 4 Ad A6590.4J4IC23.3on <1986.21811.3a ocq 72183.2A coo 730 79.34109.45251.2J51730.136.5QQ A7 62.5A” 4643.41359.71683.72473.23492.34422.3ooon 01059.3 QQ

32、Q Q1350.32053.24 QC7 A3066.23980.3J7J8-J-Id A39.0584.3939.81205.21857.6a onn O2853.13ff53.245.7433.7695.7AQCt Ct896.31392.22321.3A noc %3113.351.7296.2486.6ocn a623.91063.3pen 01935.34 A co c2635.2J10Id <15 7.22 13.7a Ad n352.14 on c462.5852.8ACO Q1453.5otrn d2 118.6J1163.5L-67J10 1.959.7180.593.

33、1248.7133.8452.9286.6859.1595.31428.31036.71截面序 號深度范 圍加載等級12345I1J21 8.q 421 27129 95143 55347 97751 034-4872V 1 "V A12 |39 4 14 333 885V W V 1 42 10362 67165 936v 1 .Vwr71 165J2-J3I3J49.4-14.314 3-23 333.88526 09342.10330 86362.6 7 144 78965.93652 7117 1.165 ,54 7947 2s48I4J523 3-30 113 089OU.

34、QOO26 42429 227W. f 1 135 46536 108I5J6乙O.O OU. 130 1-36 57 404乙。峠乙峠18 67620 72726 111OO 1 VQ26 491rO -2736vlw wUI6J7OU. 1 wOb W36 539 09 4061 0.0 f 019 01923 093盜。.III31 131乙。峠n 133 916J6-J717 IQ36.539.0OQ A 4耳 79.406Q CkAA19.0 19A A 40 佇23.0934 0 OAA3 1.13 133.9 1631.5829c CQ736鈕J7-J8io iq39.045.7

35、778.944 Q d d Q14.496A 0 00018.344d Q ARA27.63894 04 4J8-J919 11045.751.751 7 57 59.1185 66013.8669 22718.06411 0722 1.81114 44125.59 733 0523135J9-JI0MA M 151.7-57.5C7 C RO c5.6607 AAA9.22 7 d d OQAII. 072A A -17R14.44 190 cd q33.052OQ 41735JI0-J1IJ11-J12I57.5- 63.563.5 67.04.79711.3809.93614.17 81

36、3.062126.51918.905139.41745M4加載等級7#樁身軸力數(shù)據(jù)表(kN)12 3.8.24002021.31598.7 56.9-718.7603.8555.836003095.32482.31790.21381.21077.5991.348004020.33214.82160.2466821321.51198.572006285.784007508.66 05110.54242.81 5401.81 6611.53101.324968208534232.73538.73097.32891.296 875 783 6435283.74401.8 5483952.73725.

37、9495469截面深序度號7#樁身側(cè)壁摩阻力數(shù)據(jù)表（kPa）截面序 號深度范 圍加載等級12345J1-J21 8.9 419 82626 42340 82046 56947 867,46J2.J39 4.14 31 P.O 盜。34 316E。.TEO49 77765 40870 459*r f Q。f71 774-72 -58 -5197J2-J313|414 3 23 334.3 1628 37449. iff30 59865.408AR R9At 0.4597 1. ff451 686J3-J4 A IC14.3-23.3no o on 428.3 7 430.598 no non46

38、.624OQ 7QQ50.465 qc 0745 1.686Af ftAQJ4-J5IE IR23.3-30.1 on 1耳13.938723.9324 Q QQ428.78894片片d35.3 7 1 oc coo40.60897 J.A9I5-J61730.I-36.57.1437 COG18.88 12 1.55425.5832 7.442on onn27J6-Jr17 IO36.5-39.0OQ A AC 7_7.639 q caA13.7 19d o 47719.57630.23997 arr32.802-3607Jr-J8io in39.0-45.7 AC 7 Cd 78.5461

39、6.17 716.90 727.466nn ocn3 I.04I 07 nnn37 OQJ8-J9in MA45.7-5I.77.04315.59 1a a oen16.2 14A A £*AA20.352A a Q4 Q2 7.20929opJ9-J10M A M d5l.ff-5f.57.44310.359a n 74 a11.60016.3133 1.234-8J10-J11J11-J1257.5- 63.563.5- 67.06.5325.43410.7168.18515.68312.32327.13620.20140.14731.4671-45-44G 1 2114411.

40、9305.7197.298.7509718.9483.8332.8171.299.2913.8669.3500.2263.715531432.81125.9888.1478.9301.22368.51958.21502.9897.5620.73094.52650.32085.91403.71015.8截面深序度號123456712 324002007.91558.3945.836003052.82453.71737.548004011.53195.6 2178.272006305.25406.560005173.54305.83191.314256.384007538.61 8776602.4

41、5305.196785645J7& 01011122,0彳.7.2,5 孔砥32,佃515763,GfOQO 7 dOAgjQ d CQC Q OfZd d QI Qgne al "冃 住匚彳692.71346.31635.9 2511.3 3502.6 4424.555 1511.8394.6305.3207.2105.732"彳匸a1115.61021.8795.3593.8388.3201.3108.21352.41223.7924.8685.3455.6255.9147.32098.61938.7 1454.2 1148.5 805.1 476.3 325.

42、63076.52900.62345.31972.81522.4914.5634.93931.53714.33065.72623.72112.31442.71067.6497472394340281203168#樁身側(cè)壁摩阻力數(shù)據(jù)表（kPa）截面序深度范號J1-J21234520.52828.64841.28143.270M5加載等級圍1.8-9.42 J39 4-14 336 50848 64866 25270 45972 9767613 1414 3 23 3o。. WO27 07831 66344 979f Vw49 272f Jta v f W50 850f V5714 151 T O £OO23 3 30 114 81022 890rlrl W f w31 732TP 乙f乙39 789v VbO v V44 10151u峠w15 16£0.0 OU. 13U 1 36 51峠O 1 V8 63514 34317 62525 658rl rl 1 V 126 4917 i30u wo