In the heart of Yunwan Garden, Ji’nan, China, a remarkable community park has emerged, seamlessly blending ancient geological forms with cutting-edge fabrication. Boulder Park, a 13,000-square-meter haven designed by XISUI Design, reimagines the playground experience, using massive stones – symbols of eternity – alongside pioneering 3D concrete printing technology to create an environment fostering intergenerational interaction and deep connection with nature.
The park’s core concept revolves around integrating natural boulders directly into play and leisure. Stones strategically placed over sandpits become climbing challenges and resting spots. Rocks within a meandering shallow creek invite interaction, transforming into elements of a dynamic water play installation. The most striking manifestation of this fusion, however, is the creation of a captivating rock cave adventure space – not carved, but additively manufactured using advanced robotic 3D concrete printing.
XISUI Design masterfully zoned the expansive site into distinct yet harmonious areas, focusing on the All-Age Boulder Playground, Water Garden, and Forest Garden. The Playground and Forest Garden buzz with activity, featuring swings, slides, trampolines, climbing tunnels, and speaking tubes. Crucially, these elements aren’t merely placed within the landscape; they are formed by and integrated into large natural stones and the park’s signature 3D printed concrete caves. This design encourages physical development and stimulates cognitive skills related to nature recognition and balance.
Adjacent to the Playground, the Water Garden offers a sensory-rich experience. Shallow streams babble naturally, incorporating boulders that children can clamber over. Interactive features like fountains, jumping springs, winding creeks, and a water turntable invite exploration. Simple water pumps and pressure devices add layers of discovery, fostering an intuitive understanding and appreciation of water’s properties and gentle power.
The true technological marvel lies in the park’s monolithic structures. XISUI Design employed robotic 3D concrete printing to construct complex, free-form cave and boulder-like formations impossible with traditional formwork. A computer-controlled robotic arm precisely extrudes concrete layer by layer, solidifying into incredibly strong, seamless shapes. This additive manufacturing process offers unparalleled freedom, creating organic landscape installations with unique layered textures that visually echo natural canyons and rock strata.
“Landscape structures and installations are often small scale with clear functional needs,” explains Hu Yihao, Lead Designer at XISUI Design. “3D printing technology excels here, offering significant advantages in achieving organic shapes, outdoor durability, ease of installation, and labor cost savings.” The 3D printed concrete used boasts an average strength of 50MPA, exceeding traditional C40 concrete standards, ensuring robust safety for play structures.
Safety and enjoyment were paramount. All 3D printed concrete elements feature smooth edges and rounded corners, eliminating hazardous points. The caves, slides, tunnels, and tubes are designed to be inherently safe while maximizing exploratory fun. The layered textures naturally form steps, handrails, and seating, blurring the line between artificial structure and natural feature.
Boulder Park stands as a compelling testament to the potential of 3D concrete printing in public space design. XISUI Design has created more than just a playground; they’ve crafted an experiential landscape where technology respectfully enhances nature. The result is a vibrant community park in Jinan China that invites exploration, fosters connection, and offers a glimpse into the future of sculpting our shared environments – one innovative layer at a time.