分层加固法对温州淤泥类渣土加固的现场试验研究

doi:10.13722/j.cnki.jrme. 2021.0248

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Abstract To make the resource utilization of sludge，the layered reinforcement of sludge is conducted by consolidation-solidification composite technology to treat the sludge in the test site. During the test，the shallow sludge is reinforced by the solidification technology to forms a overlying crust. For the deep sludge，the vacuum preloading technology is used to reinforce it so as to improve the bearing capacity of the underlying stratum. Field test results show that the solidified agent has obvious solidified effect on the shallow sludge. When the solidified agent content is 2%–8%，the characteristic value of bearing capacity of overlying crust in shallow solidified sludge is 117–200 kPa. The deformation modulus of solidified sludge is between 8.5–14.59 MPa. The sludge after layered reinforcement can be described by a two-layer foundation model. For the two-layered foundation，the overlying crust has a certain stress diffusion effect. The stress diffusion angle of the shallow solidified sludge is between 8.28°–20.57°，which can effectively reduce the additional stress of the soft underlying stratum and the characteristic value of bearing capacity of the two-layered foundation can reach 80–170 kPa.

Key words： soil mechanics sludge consolidation solidification overlying crust characteristic value of bearing capacity stress diffusion

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	Articles by authors
	LUO Jiacheng1
	SHAO Jicheng2
	3
	YUAN Bo1
	3
	WU Yajun4

Cite this article:

LUO Jiacheng1,SHAO Jicheng2,3, et al. Study of field test on reforcement of Wenzhou sludge by layered reinforcement method[J]. , 2021, 40(S2): 3483-3492.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme. 2021.0248 OR https://rockmech.whrsm.ac.cn/EN/Y2021/V40/IS2/3483

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