 Posted: Sat 9:43, 19 Feb 2011 Post subject: Field test to determine gravel pile composite foun |
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| Field test to determine gravel pile composite foundation: a case study in Chengdu
O ~ Shao-lived dry matter 188443.404.520.780.22250】 Sapporo 80,140 seats per Cao, Chengdu, shopping malls spring 251214.508.5010.600.50.1204502】 5 ways to become a reliable foundation bearing capacity, efficiency and economy 2-l complex calculation of the number of hammering the depth range for the mainland-based soil reinforcement for the homogeneous soil, you can from the pile, the pile Q soil blow count normalized to obtain the arithmetic mean. If the reinforcement layer within a layer of soil, then the pile, Q soil blow count normalized following formula: Police v A pile of soil pile Q:: and bamboo shoots (3) where, H, for the i layer of soil thickness (m); H for the reinforcement layer (m); Ⅳ,belstaff outlet, N. I layer of soil were within the pile, soil hammering number. The number of composite foundation of composite hammer according to the following formula: N: mN + (1 a) N (4) / 'n the area of exchange rates. 2.2 The establishment of statistical relationships collected according to the Chengdu region of the gravel pile typical example of the static load test and heavy dynamic penetration test data (Table 1), rendering the value of bearing capacity, deformation modulus and the scatter diagram, as shown in Figure 3, Figure 4. The statistical 4O Geological Hazards and Environment 1996, Statistics Zhu Ⅳ Figure t diagram of a Fig. 2TheCOrrelationbetweenP Ⅲ and analysis, by the following relationship: (1) intensity regression (unit: kPa) P | = 209.639In (N) a 64.94 (5) a correlation coefficient of r 98.6; residual standard deviation s = 2. 397 (2) The return of the deformation modulus (unit: MPa) E a 11.45In (N) a 6.376 (6) correlation coefficient of r = 91.8; residual standard deviation s = 3.564 in (5) is based on Chengdu dynamic and static test data of Figure 4E a statistical diagram Fig. 4ThecorrelationbetweenE one calculated, and the results compared with existing methods to determine the bearing capacity according to the value of big scores kPa,tory burch shoes, the effect is ideal. introduced this article, hope to play a role in attracting valuable opinions. Finally, it should pointed out: the formula depends on the dynamic and static test data, the main composite soil from the sand foundation class instance made, to move for the soil, may be larger error. DETERMINATIONOFBEARINGCAPACITY0FCOMPOSITEFOUNDATIONWITHST0INE-PILESININ-SITUTESTSZhouJiananYangShubi (ChengduInstituteofTechnology,belstaff italia, Chengdu610059) AbstractBasedoqlthestaticloadingtestsandheavydynamicpenetradontests (HDPT) oncompositefoundatLonwithstonepiles, theauthorsSUggestthemethodtodeterminePubytwokindsofP-Sc ~ resfromstaticloadingtests, andthenproposetheempiricalformulast. determinethestandardbearingcapacityanddeformationmodulusofcompositefoundationfromDPTcompoundblowymeai ~. sofstatisticalanalvs. fthetestresults.KeyWordsCompositefoundationBearingcapacityStaticl ~ dmgtestDynamicpenetratLontestfDPT) (Et collection of lotus root; 19,960,124) of the dielectric cylinder: Zhou Jianan, male graduate in 1992, Xiamen,tory burch reva, Chengdu Institute of Hydrogeology and Engineering Geology, Department of Examination the same year, built with the School of Engineering, Department of Master,asics australia, June 1995 by the School of Engineering who are hard. Now Fuzhou Building Design Institute has published |
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