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| Calculation Study and Engineering Application of Frame Pile - slab Retaining Wall in Deep Cutting |
| LI Kun |
| (Central South University, Changsha, Hunan 410083 , China) |
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Abstract Abstract ： Research purposes ： Based on the impact of the surrounding urban architecture and environment on the road construction and the requirements of the height, safety and reliability of retaining structure, this paper proposed a new structure of 11 frame pile - slab retaining wall in deep cuttingM includes multiple anchor piles and transverse bracings, by which the structure are fixedly connected. Drawing on the experience of calculation on the retaining of sheet - pile wall, this paper uses analytic method and finite element software in 2D and 3D view separately to study the overall stability of frame pile - slab retaining wall, and then the results calculated by different methods are compared and analyzed to ensure the reliability. Research conclusions:(1) By using the pile - slab retaining wall of type Hthe transverse bracings connected by the cast - in - place concrete with piles are set in the lower part of subgrade to increase the integrity and safety of the structure. (2) Using the transverse bracing reduces the burden of pile and limits the horizontal deformation which is from pile - slab structure to cut dues to bearing a part of bending moment, shear force and axial force. The combination of transverse bracing and 11 embedded pile - slab structure in foundation treatment" also effectively controls the settlement of subgrade and improves the bearing capacity of foundation. ( 3 ) Ultra - high retaining under the soil condition is realized by geotechnical engineering application of new structure, which also ensures the engineering stability, and has obvious social and economic benefit.
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Received: 07 March 2016
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2016, Vol. 33 
