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descripción de los principales parámetros que rigen un ensayo de comprension simple
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9. ENSAYO DE COMPRESIN SIMPLEPresentado por:Sebastian Rojas Valencia Profesor:Alejandro QuinteroObjetivo principal del ensayo:Determinar la resistencia a la compresin inconfinada de suelos cohesivos bajo condiciones remoldeadas, aplicando carga axial, usando mtodos como el de deformacin controlada. La resistencia a la compresin inconfinada, es la carga por unidad de rea a la cual una probeta de suelo falla en el ensayo de compresin simple ya sea de forma frgil o dctil.Clculos y resultados:Variables de estado inicial:Altura inicial de la muestra (cm)10,34
Dimetro inicial de la muestra (cm)4,99
rea del espcimen (cm)19,56
Volumen de la muestra (cm)202,21
Peso hmedo de la muestra (gr)359,1
Gravedad especfica de los slidos2,65
Peso unitario hmedo de la muestra (kN/m)17,42
Humedad de la muestraTaraA30A214A65
Peso de la tara (g)24,423,519,7
Peso de la tara ms suelo hmedo (g)41,336,038,2
Peso de la tara ms suelo seco (g)37,0432,8435,65
Peso del suelo seco (g)12,649,3415,95
Peso del agua (g)4,263,162,55
Humedad (%)33,7033,8315,10
Humedad promedio27,84
Peso unitario seco de la muestra (kN/m)13,63
Esfuerzo vs deformacin de la muestra:Lectura NCarga [kN]Deformacin [mm]Deformacin unitaria ()Area corregida (Ac) [m2]Esfuerzo () [kPa]Deformacin unitaria (%)
10,00300,02900,00030,001961,530,028
20,00800,05800,00060,001964,080,056
30,01200,08800,00090,001966,120,085
40,01400,14600,00140,001967,130,141
50,01700,17500,00170,001968,660,169
60,01900,20500,00200,001969,670,198
70,02200,23400,00230,0019611,200,226
80,02500,29200,00280,0019712,720,282
90,02700,29200,00280,0019713,740,282
100,03000,35100,00340,0019715,250,339
110,03300,38000,00370,0019716,770,368
120,03600,40900,00400,0019718,290,396
130,03900,43900,00420,0019719,810,425
140,04100,49700,00480,0019720,820,481
150,04400,52600,00510,0019722,330,509
160,04700,55600,00540,0019723,850,538
170,05000,58500,00570,0019725,370,566
180,05300,61400,00590,0019726,880,594
190,05500,64300,00620,0019727,890,622
200,05800,70200,00680,0019729,390,679
210,06100,73100,00710,0019730,900,707
220,06300,76000,00740,0019731,910,735
230,06500,79000,00760,0019832,910,764
240,06700,84800,00820,0019833,900,820
250,07000,87700,00850,0019835,410,848
260,07200,90700,00880,0019836,410,877
270,07400,93600,00910,0019837,410,905
280,07700,96500,00930,0019838,920,933
290,07900,99400,00960,0019839,920,961
300,08101,05300,01020,0019840,911,018
310,08301,08200,01050,0019841,901,046
320,08601,11100,01070,0019843,411,074
330,08701,14100,01100,0019843,901,103
340,09001,17000,01130,0019845,401,132
350,09201,22800,01190,0019846,381,188
360,09401,25800,01220,0019847,381,217
370,09601,28700,01240,0019848,371,245
380,09801,31600,01270,0019949,361,273
390,10001,34500,01300,0019950,361,301
400,10201,37500,01330,0019951,351,330
410,10401,43300,01390,0019952,331,386
420,10601,46200,01410,0019953,321,414
430,10801,49200,01440,0019954,311,443
440,11001,52100,01470,0019955,301,471
450,11201,55000,01500,0019956,291,499
460,11401,57900,01530,0019957,281,527
470,11601,63800,01580,0019958,251,584
480,11801,66700,01610,0019959,231,612
490,12001,69600,01640,0019960,221,640
500,12201,72600,01670,0019961,211,669
510,12301,75500,01700,0019961,691,697
520,12501,78400,01730,0019962,681,725
530,12701,84200,01780,0020063,641,781
540,12901,87200,01810,0020064,621,810
550,13101,90100,01840,0020065,611,838
560,13201,93000,01870,0020066,091,867
570,13401,95900,01890,0020067,071,895
580,13601,98900,01920,0020068,051,924
590,13802,04700,01980,0020069,011,980
600,14002,04700,01980,0020070,011,980
610,14202,10600,02040,0020070,972,037
620,14402,13500,02060,0020071,952,065
630,14502,16400,02090,0020072,432,093
640,14702,19300,02120,0020073,412,121
650,14902,22300,02150,0020074,392,150
660,15102,28100,02210,0020075,342,206
670,15302,28100,02210,0020076,342,206
680,15502,34000,02260,0020177,292,263
690,15702,36900,02290,0020178,272,291
700,15902,39800,02320,0020179,242,319
710,16002,42700,02350,0020179,722,347
720,16202,45700,02380,0020180,692,376
730,16402,48600,02400,0020181,662,404
740,16602,51500,02430,0020182,632,432
750,16802,54400,02460,0020183,612,460
760,17002,57400,02490,0020184,582,489
770,17102,63200,02550,0020185,022,545
780,17302,63200,02550,0020186,022,545
790,17502,69100,02600,0020186,962,603
800,17702,72000,02630,0020187,932,631
810,17902,74900,02660,0020188,902,659
820,18002,77800,02690,0020189,372,687
830,18302,80800,02720,0020190,832,716
840,18402,83700,02740,0020291,302,744
850,18602,89500,02800,0020292,242,800
860,18702,92500,02830,0020292,712,829
870,18902,95400,02860,0020293,672,857
880,19102,98300,02880,0020294,642,885
890,19303,01200,02910,0020295,602,913
900,19403,07100,02970,0020296,042,970
910,19603,10000,03000,0020297,002,998
920,19803,12900,03030,0020297,963,026
930,20003,15900,03060,0020298,923,055
940,20203,18800,03080,0020299,883,083
950,20303,21700,03110,00202100,353,111
960,20503,24600,03140,00202101,313,139
970,20703,27600,03170,00202102,273,168
980,20903,30500,03200,00202103,223,196
990,21003,33400,03220,00203103,693,224
1000,21203,36300,03250,00203104,653,252
1010,21403,42200,03310,00203105,573,309
1020,21603,45100,03340,00203106,533,338
1030,21703,48000,03370,00203106,993,366
1040,21903,50900,03390,00203107,943,394
1050,22103,53900,03420,00203108,903,423
1060,22303,56800,03450,00203109,853,451
1070,22403,59700,03480,00203110,313,479
1080,22603,62600,03510,00203111,263,507
1090,22703,68500,03560,00203111,693,564
1100,22903,71400,03590,00203112,643,592
1110,23103,74300,03620,00203113,593,620
1120,23303,77300,03650,00203114,543,649
1130,23403,80200,03680,00203115,003,677
1140,23603,83100,03710,00204115,953,705
1150,23803,86000,03730,00204116,903,733
1160,24003,89000,03760,00204117,843,762
1170,24103,94800,03820,00204118,263,818
1180,24203,97700,03850,00204118,723,846
1190,24404,00700,03880,00204119,673,875
1200,24604,03600,03900,00204120,613,903
1210,24804,06500,03930,00204121,563,931
1220,24904,09400,03960,00204122,013,959
1230,25104,12400,03990,00204122,953,988
1240,25204,15300,04020,00204123,414,016
1250,25404,21100,04070,00204124,314,073
1260,25604,21100,04070,00204125,294,073
1270,25804,27000,04130,00204126,204,130
1280,25904,29900,04160,00205126,654,158
1290,26004,32800,04190,00205127,104,186
1300,26304,35800,04210,00205128,534,215
1310,26404,38700,04240,00205128,984,243
1320,26504,44500,04300,00205129,394,299
1330,26704,47500,04330,00205130,334,328
1340,26804,47500,04330,00205130,824,328
1350,27004,53300,04380,00205131,724,384
1360,27204,56200,04410,00205132,654,412
1370,27304,59200,04440,00205133,104,441
1380,27504,62100,04470,00205134,044,469
1390,27604,65000,04500,00205134,484,497
1400,27704,67900,04530,00205134,934,525
1410,27904,70900,04550,00205135,864,554
1420,28004,73800,04580,00205136,314,582
1430,28104,76700,04610,00205136,764,610
1440,28304,79600,04640,00206137,694,638
1450,28504,82600,04670,00206138,624,667
1460,28604,85500,04700,00206139,074,695
1470,28804,88400,04720,00206140,004,723
1480,28904,91300,04750,00206140,444,751
1490,29104,94300,04780,00206141,374,780
1500,29204,97200,04810,00206141,824,809
1510,29305,00100,04840,00206142,264,837
1520,29505,03000,04860,00206143,194,865
1530,29705,06000,04890,00206144,124,894
1540,29805,11800,04950,00206144,524,950
1550,30005,11800,04950,00206145,494,950
1560,30105,17700,05010,00206145,885,007
1570,30205,20600,05030,00206146,325,035
1580,30405,23500,05060,00206147,255,063
1590,30505,26400,05090,00207147,695,091
1600,30605,29300,05120,00207148,135,119
1610,30805,35200,05180,00207149,015,176
1620,30905,38100,05200,00207149,455,204
1630,31105,41000,05230,00207150,375,232
1640,31205,44000,05260,00207150,815,261
1650,31305,46900,05290,00207151,255,289
1660,31405,49800,05320,00207151,695,317
1670,31605,52700,05350,00207152,615,345
1680,31705,58600,05400,00207153,005,402
1690,31905,61500,05430,00207153,925,430
1700,32005,64400,05460,00207154,355,458
1710,32105,67400,05490,00207154,795,487
1720,32205,70300,05520,00207155,225,515
1730,32305,73200,05540,00208155,665,544
1740,32505,79100,05600,00208156,535,601
1750,32605,82000,05630,00208156,965,629
1760,32705,84900,05660,00208157,405,657
1770,32805,87800,05680,00208157,835,685
1780,33005,90800,05710,00208158,755,714
1790,33105,96600,05770,00208159,135,770
1800,33205,99500,05800,00208159,575,798
1810,33306,02500,05830,00208160,005,827
1820,33506,05400,05850,00208160,915,855
1830,33606,08300,05880,00208161,345,883
1840,33706,14200,05940,00208161,735,940
1850,33806,14200,05940,00208162,215,940
1860,33906,20000,06000,00209162,595,996
1870,34106,22900,06020,00209163,506,024
1880,34206,25900,06050,00209163,936,053
1890,34306,28800,06080,00209164,366,081
1900,34406,31700,06110,00209164,796,109
1910,34606,34600,06140,00209165,706,137
1920,34706,40500,06190,00209166,076,194
1930,34806,43400,06220,00209166,506,222
1940,34806,46300,06250,00209166,456,250
1950,35006,49300,06280,00209167,366,279
1960,35106,52200,06310,00209167,796,308
1970,35306,55100,06340,00209168,696,336
1980,35306,61000,06390,00209168,596,393
1990,35406,63900,06420,00209169,026,421
2000,35506,66800,06450,00210169,446,449
2010,35706,69700,06480,00210170,356,477
2020,35706,72700,06510,00210170,296,506
2030,35906,78500,06560,00210171,146,562
2040,36006,81400,06590,00210171,576,590
2050,36106,84400,06620,00210171,996,619
2060,36206,87300,06650,00210172,426,647
2070,36306,90200,06680,00210172,846,675
2080,36406,93100,06700,00210173,276,703
2090,36506,99000,06760,00210173,646,760
2100,36606,99000,06760,00210174,116,760
2110,36707,04800,06820,00210174,486,816
2120,36807,07700,06840,00210174,906,844
2130,36907,10700,06870,00210175,336,873
2140,37007,13600,06900,00211175,756,901
2150,37107,16500,06930,00211176,176,929
2160,37207,19400,06960,00211176,596,957
2170,37307,22400,06990,00211177,016,986
2180,37407,28200,07040,00211177,387,043
2190,37507,31100,07070,00211177,807,071
2200,37607,34100,07100,00211178,227,100
2210,37707,37000,07130,00211178,647,128
2220,37807,39900,07160,00211179,067,156
2230,37907,42800,07180,00211179,487,184
2240,37907,45800,07210,00211179,427,213
2250,38007,51600,07270,00211179,787,269
2260,38107,54500,07300,00211180,207,297
2270,38207,57500,07330,00211180,627,326
2280,38307,60400,07350,00212181,047,354
2290,38407,63300,07380,00212181,467,382
2300,38507,66200,07410,00212181,877,410
2310,38607,72100,07470,00212182,237,467
2320,38607,75000,07500,00212182,187,495
2330,38707,77900,07520,00212182,597,523
2340,38807,80900,07550,00212183,017,552
2350,38907,83800,07580,00212183,427,580
2360,39007,86700,07610,00212183,847,608
2370,39107,89600,07640,00212184,267,636
2380,39107,95500,07690,00212184,147,693
2390,39207,95500,07690,00212184,617,693
2400,39308,01300,07750,00212184,977,750
2410,39408,04300,07780,00213185,387,779
2420,39508,07200,07810,00213185,807,807
2430,39508,10100,07830,00213185,747,835
2440,39608,13000,07860,00213186,167,863
2450,39708,16000,07890,00213186,577,892
2460,39708,18900,07920,00213186,517,920
2470,39808,21800,07950,00213186,927,948
2480,39908,24700,07980,00213187,337,976
2490,40008,30600,08030,00213187,698,033
2500,40108,33500,08060,00213188,108,061
2510,40108,36400,08090,00213188,048,089
2520,40208,39400,08120,00213188,458,118
2530,40308,42300,08150,00213188,868,146
2540,40308,45200,08170,00213188,818,174
2550,40408,48100,08200,00214189,228,202
2560,40408,51100,08230,00214189,168,231
2570,40508,56900,08290,00214189,518,287
2580,40608,56900,08290,00214189,988,287
2590,40708,62800,08340,00214190,338,344
2600,40708,65700,08370,00214190,278,372
2610,40708,68600,08400,00214190,218,400
2620,40808,71500,08430,00214190,628,428
2630,41008,74500,08460,00214191,498,457
2640,41008,77400,08490,00214191,438,485
2650,41008,80300,08510,00214191,378,514
2660,41108,86100,08570,00214191,728,570
2670,41208,89100,08600,00214192,138,599
2680,41208,92000,08630,00215192,078,627
2690,41308,94900,08650,00215192,488,655
2700,41308,97800,08680,00215192,428,683
2710,41409,00800,08710,00215192,828,712
2720,41409,03700,08740,00215192,768,740
2730,41609,06600,08770,00215193,648,768
2740,41609,09500,08800,00215193,588,796
2750,41709,12500,08820,00215193,988,825
2760,41709,15400,08850,00215193,928,853
2770,41809,21200,08910,00215194,278,909
2780,41809,24200,08940,00215194,208,938
2790,41909,27100,08970,00215194,618,966
2800,41909,30000,08990,00215194,558,994
2810,41909,35900,09050,00216194,439,051
2820,42009,35900,09050,00216194,899,051
2830,42109,38800,09080,00216195,299,079
2840,42109,44600,09140,00216195,179,135
2850,42109,47600,09160,00216195,119,164
2860,42209,50500,09190,00216195,519,192
2870,42309,53400,09220,00216195,929,221
2880,42409,56300,09250,00216196,329,249
2890,42409,59300,09280,00216196,269,278
2900,42409,65100,09330,00216196,149,334
2910,42509,68000,09360,00216196,549,362
2920,42509,71000,09390,00216196,479,391
2930,42609,73900,09420,00216196,889,419
2940,42609,76800,09450,00216196,819,447
2950,42609,79700,09470,00217196,759,475
2960,42709,85600,09530,00217197,099,532
2970,42709,88500,09560,00217197,039,560
2980,42809,91400,09590,00217197,439,588
2990,42809,94400,09620,00217197,379,617
3000,42809,97300,09650,00217197,319,645
3010,429010,03100,09700,00217197,649,701
3020,429010,06100,09730,00217197,589,730
3030,429010,09000,09760,00217197,529,758
3040,430010,11900,09790,00217197,929,786
3050,430010,14800,09810,00217197,869,814
3060,430010,17800,09840,00217197,799,843
3070,431010,20700,09870,00217198,199,871
3080,431010,23600,09900,00218198,139,899
3090,432010,26500,09930,00218198,539,927
3100,432010,29500,09960,00218198,469,956
3110,433010,32400,09980,00218198,869,985
3120,433010,35300,10010,00218198,8010,013
3130,433010,38200,10040,00218198,7410,041
3140,434010,41200,10070,00218199,1310,070
3150,434010,44100,10100,00218199,0710,098
3160,435010,49900,10150,00218199,4010,154
3170,435010,49900,10150,00218199,4010,154
3180,435010,55800,10210,00218199,2810,211
3190,435010,58700,10240,00218199,2110,239
3200,436010,61600,10270,00218199,6110,267
3210,436010,64500,10290,00218199,5510,295
3220,436010,67500,10320,00219199,4810,324
3230,436010,70400,10350,00219199,4210,352
3240,437010,73300,10380,00219199,8210,380
3250,437010,76200,10410,00219199,7510,408
3260,438010,79200,10440,00219200,1510,437
3270,438010,85000,10490,00219200,0210,493
3280,438010,87900,10520,00219199,9610,521
3290,439010,90900,10550,00219200,3510,550
3300,439010,93800,10580,00219200,2910,578
3310,440010,96700,10610,00219200,6810,606
3320,440010,99600,10630,00219200,6210,634
3330,440011,05500,10690,00219200,4910,691
3340,440011,08400,10720,00220200,4310,720
3350,441011,11300,10750,00220200,8210,748
3360,441011,14300,10780,00220200,7510,777
3370,440011,20100,10830,00220200,1710,833
3380,441011,20100,10830,00220200,6310,833
3390,441011,26000,10890,00220200,5010,890
3400,441011,28900,10920,00220200,4310,918
3410,441011,31800,10950,00220200,3710,946
3420,441011,34700,10970,00220200,3110,974
3430,442011,37700,11000,00220200,7011,003
3440,442011,43500,11060,00220200,5711,059
3450,442011,46400,11090,00220200,5111,087
3460,442011,49400,11120,00221200,4411,116
3470,442011,52300,11140,00221200,3811,144
3480,442011,55200,11170,00221200,3211,172
3490,443011,58100,11200,00221200,7111,200
3500,443011,64000,11260,00221200,5811,257
3510,443011,66900,11290,00221200,5111,285
3520,443011,69800,11310,00221200,4511,313
3530,443011,72800,11340,00221200,3811,342
3540,443011,75700,11370,00221200,3211,370
3550,443011,78600,11400,00221200,2611,398
3560,443011,81500,11430,00221200,1911,426
3570,443011,87400,11480,00221200,0711,484
3580,443011,90300,11510,00221200,0011,512
3590,443011,93200,11540,00222199,9411,540
3600,443011,96200,11570,00222199,8711,569
3610,443011,99100,11600,00222199,8111,597
3620,442012,04900,11650,00222199,2311,653
3630,443012,07900,11680,00222199,6211,682
3640,442012,10800,11710,00222199,1011,710
3650,442012,13700,11740,00222199,0411,738
3660,442012,16600,11770,00222198,9811,766
3670,442012,19600,11790,00222198,9111,795
3680,442012,22500,11820,00222198,8511,823
3690,442012,25400,11850,00222198,7811,851
3700,442012,31200,11910,00222198,6611,907
3710,442012,34200,11940,00223198,5911,936
3720,442012,37100,11960,00223198,5311,964
3730,442012,40000,11990,00223198,4711,992
3740,442012,42900,12020,00223198,4012,020
3750,442012,45900,12050,00223198,3412,049
3760,441012,51700,12110,00223197,7612,105
3770,442012,54600,12130,00223198,1512,133
3780,442012,57600,12160,00223198,0812,162
3790,442012,60500,12190,00223198,0212,191
3800,442012,63400,12220,00223197,9612,219
3810,442012,66300,12250,00223197,8912,247
3820,442012,69300,12280,00223197,8312,276
3830,442012,72200,12300,00223197,7612,304
3840,442012,75100,12330,00224197,7012,332
3850,442012,78000,12360,00224197,6412,360
3860,442012,81000,12390,00224197,5712,389
3870,442012,86800,12440,00224197,4512,445
3880,442012,89700,12470,00224197,3812,473
3890,442012,92700,12500,00224197,3212,502
3900,442012,95600,12530,00224197,2512,530
3910,442012,98500,12560,00224197,1912,558
3920,442013,01400,12590,00224197,1312,586
3930,442013,04400,12620,00224197,0612,615
3940,442013,07300,12640,00224197,0012,643
3950,442013,13100,12700,00225196,8712,699
3960,442013,16100,12730,00225196,8112,728
3970,443013,19000,12760,00225197,1912,756
3980,442013,21900,12780,00225196,6812,784
3990,442013,24800,12810,00225196,6212,812
4000,442013,27800,12840,00225196,5512,841
4010,443013,33600,12900,00225196,8712,897
4020,443013,36500,12930,00225196,8112,926
4030,442013,39500,12950,00225196,3012,955
4040,442013,42400,12980,00225196,2312,983
4050,442013,45300,13010,00225196,1713,011
4060,443013,48200,13040,00225196,5513,039
4070,443013,51200,13070,00225196,4813,068
4080,442013,57000,13120,00226195,9113,124
4090,442013,59900,13150,00226195,8513,152
4100,443013,62900,13180,00226196,2313,181
4110,443013,65800,13210,00226196,1713,209
4120,442013,68700,13240,00226195,6613,237
4130,442013,71600,13260,00226195,6013,265
4140,442013,74600,13290,00226195,5313,294
4150,442013,80400,13350,00226195,4013,350
4160,442013,83300,13380,00226195,3413,378
4170,441013,86300,13410,00226194,8313,407
4180,441013,89200,13440,00226194,7713,435
4190,441013,92100,13460,00226194,7113,463
4200,441013,98000,13520,00227194,5813,520
4210,441014,00900,13550,00227194,5213,548
4220,440014,03800,13580,00227194,0113,576
4230,440014,06700,13600,00227193,9513,604
4240,440014,09600,13630,00227193,8913,632
4250,439014,12600,13660,00227193,3813,662
4260,438014,15500,13690,00227192,8813,690
4270,437014,21300,13750,00227192,3113,746
Curva esfuerzo vs. deformacin:
Curva region elstica:
Resistencia a la compresin simple:200,82
Mdulo de elasticidad:29,24
Anlisis de resultados:La resistencia a la compresin simple es de 200,82 lo que nos indica el mximo esfuerzo al que puede someterse el suelo antes de llegar a una deformacin plstica y prxima ruptura. El mdulo de elasticidad es de 29,24 esto nos indica que se necesita de poco esfuerzo para crear grandes deformaciones, por lo que descartamos que la muestra es frgil.La muestra presenta un tipo de deformacin dctil debido a que en un determinado tiempo los esfuerzos necesarios para dar distintas deformaciones se empezaron a estabilizar.Dado que la muestra es dctil el ensayo no se detuvo cuando los esfuerzos comenzaron a disminuir drsticamente, sino que se detuvo cuando la muestra llevaba el 20% de su deformacin. Conclusiones: En los ensayos de compresin simple con bajas tensiones de confinamiento (en nuestro caso igual a 0 porque el suelo no est confinado), se suele observar una cada rpida de la resistencia del suelo cuando se sobrepasa la mxima resistencia del mismo. Si tuviramos el caso en que la muestra fuera confinada, la cada de la resistencia del suelo sera ms drstica. La fragilidad del suelo viene dada por la pendiente de la curva esfuerzo vs deformacin a partir del punto de resistencia mximo, es decir, el mdulo de elasticidad (mdulo de Young).
Al aumentar la duracin del ensayo disminuyen los siguientes factores: Resistencia mxima. Fragilidad. Mdulo elstico.
Con el ensayo se pretende someter al suelo a presiones que puede llegar a sufrir en campo.
La resistencia del suelo depende: Del tipo de suelo De las propiedades mecnicas del suelo De los esfuerzos a los que sea sometido
Bibliografa:Compresin inconfinada en muestras de suelos, I.N.VE - 152
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