Revitalizing Ancient Underground Homes in Henan: A Blend of Tradition and Innovation
In a groundbreaking endeavor, an interdisciplinary team has breathed new life into the centuries-old 'dikengyuan' underground dwellings on China's Loess Plateau. This innovative project not only reimagines traditional architecture for a changing climate but also strengthens community bonds, demonstrating a powerful fusion of heritage and modernity.
A Modern Revival of Henan's Subterranean Legacy
In the picturesque Zhangbian Township, nestled within the vast Loess Plateau of Henan Province, China, a visionary project spearheaded by a team from the University of Hong Kong has redefined the ancient practice of subterranean living. Professors John Lin, Olivier Ottevaere, and Lidia Ratoi, alongside a dedicated cohort of student volunteers and skilled local masons, embarked on a mission to modernize the 'dikengyuan' – traditional underground courtyard houses carved directly into the loess soil. This initiative, known as the 'Underground House of the Future,' seamlessly integrates traditional construction methods with cutting-edge technologies like large-scale 3D printing. The primary goal is to empower these unique architectural systems to withstand evolving climate patterns while simultaneously enriching the social fabric of rural communities. The project highlights the enduring relevance of underground homes, which, despite the rise of modern concrete structures, continue to offer stable indoor temperatures, effectively mitigating both summer heat and winter cold. Following the severe floods of 2021, which devastated many traditional underground dwellings, the focus shifted from mere preservation to adaptive innovation. A key figure in this transformation was Miss Zhu, the owner of the selected dwelling, who actively participates in documenting underground life through social media. Her collaboration with the design team led to the inspired decision to convert her private residence into a vibrant community gathering space. The central courtyard has been ingeniously redesigned as a stepped amphitheater, featuring terraced seating that doubles as pathways and guides rainwater into an advanced drainage system. This stepped surface was crafted using robotic 3D printing with earth-based materials, a technique collaboratively tested during construction workshops. Above the courtyard, a lightweight, translucent tensile canopy, conceived by Ottevaere, filters sunlight while preserving an open-air feel. An aperture in the canopy allows for a newly planted tree, honoring local feng shui traditions and restoring greenery lost to flooding. The surrounding rooms, reinforced with brick vaults by local artisans using traditional bamboo branch guides, now benefit from enhanced natural light and ventilation through new skylights and openings. This collaborative process not only infused new structural techniques but also created local employment, bolstering existing community skills.
This pioneering project serves as a compelling testament to how architectural heritage can be thoughtfully adapted to address contemporary challenges, fostering both environmental resilience and community cohesion. It reminds us that innovation is not always about discarding the old, but often about ingeniously weaving it with the new to create sustainable and vibrant futures. The transformation of a traditional home into a community hub offers a powerful model for rural development worldwide, emphasizing the importance of local wisdom, collaborative effort, and environmental consciousness in shaping our built environments.