Optimal Design of a High Slope for Ice World & Water Park (IWWP) Built Over an Abandoned Quarry: A Case Study in Cha
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ORIGINAL PAPER
Optimal Design of a High Slope for Ice World & Water Park (IWWP) Built Over an Abandoned Quarry: A Case Study in Changsha of China Chengtang Wang . Hao Wang . Yuyong Jiao . Weimin Qin . Hunan Tian
Received: 21 November 2019 / Accepted: 3 September 2020 Ó Springer Nature Switzerland AG 2020
Abstract The Ice World & Water Park (IWWP) is a huge recreational building that stands on the Dawangshan Pit which is an abandoned limestone quarry in Changsha, China. The effective reinforcement of slope is imperative to ensure the slope stability and the safe operations of IWWP project. In this paper, we present a numerical and field testing study on the optimal design of slope in Zone C. First, a comprehensive comparison and analysis of three different types of retaining structures (anchored sheet pile wall, cantilever and anchored double sheet pile walls) behavior under excavation and earthquake conditions are performed using a finite element model. In the meantime, the uncertainty in strength and deformation parameters are considered in the numerical calculations. On this basis, the parametric study was conducted via varying the row distance, pile diameter, pile spacing, coupling beam section and the number of C. Wang H. Wang W. Qin H. Tian State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, Hubei, People’s Republic of China C. Wang University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China Y. Jiao (&) Faculty of Engineering, China University of Geosciences, Wuhan 430074, Hubei, People’s Republic of China e-mail: [email protected]
anchor cables to obtain the optimum design parameters of the anchored double sheet pile wall structures. The numerical results and measured data show that the supporting structures were in a safe working state. The pile spacing, pile diameter, the number of anchor cables are the primary factors influencing the performance of the retaining system, and can be regarded as several critical parameters for the optimal design of the anchored double sheet pile wall structures. While the row distance and coupling beam section have insignificant effect on the retaining structures behavior. The conclusions of this paper will help professional when designing the anchored double sheet pile walls system of similar projects. Keywords Slope engineering Anchored double sheet pile walls Finite element model (FEM) Optimized design Field monitoring
1 Introduction Sheet pile walls are a popular flexible supporting system and have been widely utilized in cofferdams, slope stabilization and temporary supports in foundation pits (Basha and Babu 2008; Danziger et al. 2006; Degrande et al. 2002; Liu et al. 2017; Ramadan et al. 2013). In the last several decades, various types of retaining walls have been invented to satisfy the requirements of engineering practice, such as
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cantilever, braced, and an
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