Gravel Pile of Dry Mixed Cement Trial Research in Reinforcing Subgrade

Abstract:

Article Preview

According to the Beijing-Zhuhai Expressway K421+642~K421+975 Subgrade disease problems, it is reinforced by dry mixed of cement rubble pile. In order to study the reinforcement effect, the test site is divided into 5 sections and each section has six piles, the length of pile is 6.0m, the diameter of pile is 150mm, the pile spacing is 1m×1m and the weight of hammer is 120Kg. The packing height of pile and the compaction number of pile per layer is different on each section. By analyzing the results of the loading tests and the dynamic penetration test, when the packing height is less than 40cm and the compaction number is more than 7, the pile body is closely dense state and bearing capacity characteristic value is 340Kpa, and meet the design requirements; The variation is comparative analyzed by the results of the CPT, Rayleigh wave test and laboratory tests of the reinforcement of subgrade before and after, the water content of reinforced subgrade is decreased, the subgrade bearing capacity and settlement is improved. Subgrade diseases have not been detected after they were treated one year. The analysis and control methods provide references for similar projects treatment.

Info:

Periodical:

Advanced Materials Research (Volumes 243-249)

Edited by:

Chaohe Chen, Yong Huang and Guangfan Li

Pages:

2958-2964

DOI:

10.4028/www.scientific.net/AMR.243-249.2958

Citation:

M. Zhou et al., "Gravel Pile of Dry Mixed Cement Trial Research in Reinforcing Subgrade", Advanced Materials Research, Vols. 243-249, pp. 2958-2964, 2011

Online since:

May 2011

Export:

Price:

$38.00

[1] Xueling Liu, Yingpu Liu:J. ShanxiArchitecture. Vol. 11(2010), p.274.

[2] Zeqing Yi: J. Fujian Building Materials. Vol. 2 (2010), p . 49.

[3] Dongxin Zhang, Hanhui Wei:J. Communications Science and Technology Heilongjiang . Vol. 6(2009), p.129.

[4] Donghong Han :J. China Investigation & Design. Vol. 4(2009), p.51.

[5] Hong Tao, Zongqin Jiang, Zhong Rao, Diancang Tai: J. Highway. Vol. 7(2008), p.88.

[6] Hong Zhao, tuo Xu, Hequan Lu: J. Compaction Machinery and Construction Technology. Vol. 6(2005), p.56.

[7] Siwei Wang, Zhongfu Wang, Handong Liu: J. Rock and Soil Mechanics. Vol. 5 (2009), p.1421.

[8] Technical code for testing of building foundation piles(2003). JGJ. p.106.

In order to see related information, you need to Login.