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