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Tang J.,Shenyuan Geotechnical Engineering Co.
Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | Year: 2012

Based on a project close to sea in Xiamen, the common measures of waterproof curtain are introduced in deep excavation engineering. Under thick sandy layers and underground obstacles, the geological conditions of this project are quite complex, and the interlocking cast-in-situ piles are used. They work well except partial seepage. Experience in the project can be referred for the similar projects. Source


Liu Z.,Shenyuan Geotechnical Engineering Co. | Luo Z.-Q.,Shanghai Pudong Architectural Design and Research Institute Co.
Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | Year: 2012

According to the details of a typical ultra-large deep excavation project, the key points in the design and construction of the semi-top-down construction method and some deformation-control measures in construction are introduced. In addition, the positions of the maximum deformation and the deformation rules are discussed according to the monitoring data. The relatated key points and the results of the design can be referred for similar projects. Source


Shui W.-H.,Shenyuan Geotechnical Engineering Co.
Yantu Lixue/Rock and Soil Mechanics | Year: 2011

Dynamic compaction (DC) and dynamic replacement have become generally accepted ground improvement techniques for their simplicity and cost-effectiveness. But conception of DC and dynamic replacement still have a lot of disagreement. On some foundation treatment specification revision of opportunity, it is necessary to improve the dynamic compaction and dynamic compaction replacement concepts of clarification. The distinctions between DC and dynamic replacement are: with or without filler; with or without grained soil; rammer static grounding pressure is or not greater than 80 kPa and whether formatted replacement piers. Meanwhile according to the measured data of more than 68 projects, this paper proposes the relations of dynamic displacement pier length and the energy level (top achieve 18000 kN·m), for the first time in China. Also it makes form for engineering personnel reference. Source


Li Z.-C.,Shenyuan Geotechnical Engineering Co. | Liang Z.-R.,Shenyuan Geotechnical Engineering Co.
Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | Year: 2010

3D finite element method is adopted to analyze lateral deformation mode of soils in the free field state. On this basis, a computation model is set up to analyze passive piles subjected to adjacent surcharge loads. In the computation model, passive piles are divided into passive parts subjected to soil deformation induced by adjacent surcharge loads and active parts resulted from passive loads. The passive parts of passive piles are calculated according to the Itos soil pressure theory considering the layered soils and the arching effect of lateral displacement soils in passive parts. The active parts of passive piles are calculated according to the traditional method considering soil resistance. The bending moment and deformation of passive piles are solved based on the displacement compatibility differential equation by finite difference method. Finally practical calculation method brought forward is verified by an engineering example, in the paper. Source


Liang Z.-R.,Shenyuan Geotechnical Engineering Co. | Li Z.-C.,Shenyuan Geotechnical Engineering Co.
Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | Year: 2015

Based on the vacuum preloading tests on site formation process of Shanghai Disneyland, the test results of surface settlement, layered sedimentation and pore water pressure are systematically analyzed. The influences on the settlement deformation and lateral displacement of the surrounding environment in the vacuum preloading tests are also analyzed. Some meaningful conclusions are drawn. ©, 2015, Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering. All right reserved. Source

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