Vol 4 No 3 (2026)

• Analysis of Construction Technology Challenges and Countermeasures for Supertall Buildings

  Kun Yang

  Supertall buildings are characterized by significant structural height, extended construction periods, and intensive multi-process cross-operation activities. The complexity of construction technologies increases nonlinearly with building height, making supertall buildings among the most challenging engineering projects in the construction industry. This paper systematically analyzes five major technical challenges in supertall building construction, including ultra-high-performance concrete pumping, core tube construction and hydraulic climbing formwork systems, high-altitude steel structure installation, vertical transportation systems, and tower crane selection and arrangement. Drawing upon engineering practices from projects such as Xiamen Egret West Tower and the Landmark Tower of Westlake University, targeted technical solutions are proposed from the perspectives of concrete mix optimization, synchronized staggered construction of core tubes and external frames, segmented lifting of steel structures, and coordinated scheduling of vertical transportation systems. The study aims to provide references for construction organization and technical scheme selection in supertall building projects.

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• Research on the Application of Energy Storage Technology in Wind Power Grid Integration

  Xian-Jun Wang, Chun-Yan Wang

  The integration of wind power into the grid is of great significance for promoting the development of clean energy. However, the intermittency and volatility of wind power pose numerous challenges to grid integration, and energy storage technology serves as a key solution to address these issues. This paper explores the important role of energy storage technology in wind power grid integration, including improving power quality, enhancing stability, smoothing output power, and increasing the absorption capacity of wind power. It introduces the applications of physical, chemical, and electromagnetic energy storage technologies in wind power grid integration and analyzes their advantages and disadvantages. The paper proposes optimization strategies for energy storage technology configuration, highlighting two approaches for capacity configuration: one based on the fluctuation characteristics of wind power and another centered on economic efficiency. Site selection and layout must consider regional wind resources and grid infrastructure comprehensively. Optimization of control strategies requires establishing charge-discharge power management mechanisms and developing dedicated energy management systems to ensure efficient operation of energy storage systems, thereby maximizing their application value and economic performance.

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• Research on Urban Renewal Development and Urban Renewal Management

  Xiu-Zhi Li, Yun Xu

  Urban renewal has become a core approach for spatial optimization and functional restructuring in the era of stock-oriented urban development. It encompasses multiple dimensions, including physical space transformation, improvement of public services, and adjustment of social structures. Focusing on the intrinsic logic and driving factors of urban renewal, this paper reviews the current development trends and the structural contradictions existing in spatial and functional dimensions. It further constructs a management and operational system covering planning, implementation, and maintenance stages, and proposes optimization strategies from four aspects: spatial planning improvement, enhancement of whole-process management, multi-stakeholder collaborative governance, and long-term operational mechanisms. The study aims to provide a systematic framework for promoting the high-quality advancement of urban renewal.

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• Research on the Construction of Protection Corridors for Endangered Species under Urban Green Space System Planning

  Xin Li

  Urban internal green spaces are predominantly distributed as scattered patches, exhibiting significant spatial disparities. The ongoing process of urban construction further fragments the natural environments upon which rare flora and fauna depend. This research focuses on the correlation between urban green spaces and biological habitats, systematically outlining comprehensive implementation methodologies for ecological corridors, encompassing site selection, overall layout, environmental restoration, and routine management. By leveraging spatial structure adjustments, vegetation and micro-habitat modifications, coupled with zonal management and dynamic monitoring approaches, the establishment of a connected ecological network offers a viable technical solution for the conservation and survival of rare species in urban areas.

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• Application of Energy-Saving Optimization Technology for Coal Mine Power Supply Systems

  Shan Huang

  The coal mine power supply system serves as the "lifeblood" of mine production, accounting for 60% to 80% of the mine's total energy consumption. Issues such as equipment oversizing, low power factor, severe harmonic pollution, and irrational peak-valley electricity usage indicate significant energy-saving potential. This paper systematically analyzes the main energy consumption points and their causes in coal mine power supply systems, proposing an integrated energy-saving optimization framework based on reactive power compensation, harmonic mitigation, transformer economic operation, variable-frequency speed regulation, and peak-valley electricity management. Dynamic reactive power compensation can increase the power factor to above 0.95, while variable-frequency speed regulation achieves energy savings of 20% to 35% for fan and pump loads. Comprehensive energy-saving measures can yield an overall energy reduction of 15% to 25% in mine power supply systems.

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