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Caijiapo region Analysis of vibro-treatment soft


Each share of the pile and soil stress ratio using (1) or (3) design calculations to estimate the pile-soil bearing capacity than n, using (2) the design calculations to estimate the pile-soil stress ratio n. Based on the data, is approximately equal to the pile-soil bearing capacity of composite foundation than the pile-soil stress ratio, ie 1 Thus, in practical engineering, and (2) and (3) are equivalent. However,Beats By Dre Headphones, in practice, (2) the pile-soil stress than the acquisition value of n than (3) the pile-soil bearing capacity than n 'acquisition much more difficult. Thus using (3) vibro pile design calculation is more realistic . In fact, piles and piles of soil bearing capacity ratio n ask the physical and mechanical properties of soil and vibro pile construction quality are closely related. For Caijiapo region saturated soft soil, soil pile bearing capacity than the n value of the measured results are shown in Table 2. Table 2 shows examples of the seven projects in the area saturated soft soil using vibro-replacement method treatment, the pile-soil bearing capacity than the average of n changes in 2.41 - 2.91 of the question, the value of red pile, the design of precision will increase. Because the specification of the value of n generally take 2 to 4, fluctuation range. Caijiapo region saturated soft soil strength is generally low, according to the specification,herve leger sale, n value should be whichever is greater, which will result in vibro-pile composite foundation bearing capacity of the standard value f high expectations of design errors and reducing design accuracy,Salvatore Ferragamo outlet, such as Caijiapo region for the soft ground, some impulse pile design n value is relatively high, often taking 3.5 to 4.0,MBTシューズ 販売店, resulting in post-vibro pile composite foundation well below the design value, resulting in unnecessary rework waste . 2.74. Fluctuation. This value, when applied to (3) vibration in the design bearing capacity of soil in Table 2 than n. The measured data, pen vibro-replacement treatment effects in saturated soft soil treatment tables Table 2 Tiao major design parameters of the mouth detection capacity than fI l engineering force replacement ratio f. soil pile diameter -Ira) (%) change in the range n mean n '① elements fill clay 0.9441312.50b2.892.661.6' l ② silt soil 0.940.41311.89 ~ 2.692.41]. 56 ③ move dirt O. 940.41312.43 ~ 3.632,911.74 ④ silt clay O. 85O. 33782.4O ~ 3.282.841.62 @ indigo mixed with silty clay O. 85O. 33782.37 ~ 3.1O2.741.57 @ l saturated loess 0.900.32622.26 ~ 3.082.621.49 ⑦ saturated loess 0.940.41312.6l ~ 3.192.821.75 suggested, For the saturated soft soil areas Caijiapo design formula should take (3), the pile-soil bearing capacity than n. Take 2.40 ~ 2.90, the original low soil strength to take the higher, the lower of the original soil strength to take high values. Third, the construction problems in a reasonable design, if there is no guarantee of the quality of construction, it may cause the failure of reinforcement works, the results of cost and time-consuming,herve leger skirts, resulting in unnecessary losses. Given the current construction Caijiapo region, it is recommended to be a really good job in the following areas of quality supervision. 1. Construction on the console before the meter calibration and pressure gauge i2. In detail, the construction of a true record of the current, pressure, pile length, etc., in case of abnormal quick report technical consultation; 3. Caijiapo region generally too large stone size, usually 5 ~ lOcm, and the general design requirements 2 ~ 7era, for this situation should be in the amount of construction sand mixed with gravel to reduce the gap between the gravel pile, increase density, to increase pile friction angle of the body, improve pile bearing capacity; 4. After construction of the production of mud paddle water should be discharged in a timely manner to prohibit the discharge of people stranded at the construction site or off site; 5. Should strictly follow the standard operation, and effectively control the density of current and stay-up time and the amount of each filler. Fourth, mushrooms language Caijiapo region saturated soft soil in the vibro-replacement treatment should pay attention to the following aspects: - 1. Geological survey should be preceded by careful design, accurate knowledge of geological structure in an effort to deal with vibro pile foundation to provide detailed and accurate geological information. 2. Should choose the right design to catch the pile-soil bearing capacity than the n (similar to the pile-soil stress ratio n), respect for the soil is saturated. The range is 2.40 - 2.90 should continue to accumulate experience, expect to improve (3) design accuracy. 3. Specification of construction should be strictly enforced to improve the pile material (gravel) grading, the real record, the same anti-temple construction issue. More articles related to topics：


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