To ensure the hospital's stability and reliability in all adverse conditions, Xiao Yi carefully considered the decision to adopt a semi-underground structure. Standing on the planned land, his gaze fixed on the horizon, his mind racing with various factors that could impact the hospital's safety. He knew that in this uncertain and dangerous apocalyptic world, ordinary structures would struggle to withstand potential natural disasters and man-made sabotage. Designing a semi-underground structure was no easy task, requiring overcoming numerous technical challenges. Undeterred, Xiao Yi diligently researched relevant information, engaged in in-depth discussions with architectural experts, and continuously refined his concept. He considered the semi-underground structure's potential for improved earthquake resistance. When the ground shakes, the deeply buried portion effectively disperses and absorbs the impact, minimizing damage to the hospital's main structure. Furthermore, this structure enhances the hospital's wind resistance. In times of intense wind, the semi-underground portion would act like a solid foundation, stabilizing the entire hospital and preventing it from crumbling in the strong winds. Furthermore, the semi-underground structure offers significant advantages in terms of warmth and insulation. Whether in the scorching heat of summer or the bitter cold of winter, a relatively stable and comfortable indoor environment will be created for patients and medical staff, facilitating the smooth progress of medical work and the recovery of patients. Xiao Yi personally oversaw the construction process, meticulously controlling every detail. He firmly believed that this semi-underground hospital would become a solid shelter for survivors, safeguarding their health and lives.

Under Xiao Yi's command, the construction team began the massive task of deep excavation for the foundation. Large excavators roared, their massive buckets digging deep into the earth, shovel by shovel, breaking away the thick soil. As the excavation progressed, the workers meticulously performed each step, ensuring the foundation's depth and flatness met precise standards. They knew this deep foundation would be the foundation of the hospital's earthquake resistance, and no care was allowed. Once the foundation was complete, the crucial step of constructing the surrounding walls began. Xiao Yi meticulously selected a sturdy new material that was not only strong but also possessed exceptional toughness and durability. The workers worked collaboratively, seamlessly attaching each piece of the new material. Each piece was precisely measured for placement, ensuring impeccable verticality and levelness. Advanced tools and techniques were used to securely fasten the materials together. As the walls were built, the workers added layer after layer, each layer imbued with focus and care. They meticulously filled the gaps with grout, creating a seamless, solid wall. As the walls grew taller and thicker, an impenetrable fortress began to take shape. These thick walls, like a solid barrier, gave people an endless sense of security, making them believe that the hospital would stand firm in any future turmoil.

Inside the thick, sturdy walls, workers methodically carry out a crucial task: adding sound and heat insulation. They begin by meticulously attaching carefully selected soundproofing materials, such as special soundproofing foam and panels, to the inner layer of the wall. Every inch of the fit is meticulously applied, leaving no gaps to ensure maximum sound insulation. These soundproofing materials, with their excellent sound absorption properties, effectively block out the clamor and noise from outside, creating a tranquil atmosphere within the hospital. Simultaneously, the thermal insulation material is being laid. High-efficiency insulating foam and panels are precisely installed on the walls, forming a tight barrier of insulation. These materials effectively block heat intrusion, making it difficult for both the scorching summer heat and the biting winter winds to penetrate this meticulously constructed insulation barrier. During the installation process, the workers collaborated closely and adhered to strict construction standards. They used specialized tools to compact and secure the materials, ensuring their stability and durability. Every corner and every joint was repeatedly checked to ensure optimal thermal and acoustic insulation. Once completed, the walls appear to possess a magical shield, maintaining a consistently comfortable temperature within the hospital while also providing a tranquil and tranquil environment for patients and medical staff to fully immerse themselves in their treatment and work, uninterrupted by external distractions.

The hospital's roof features a unique and ingenious design, cleverly crafted into a curved shape. From a distance, its smooth curve creates a graceful skyline, showcasing not only a unique architectural aesthetic but also crucial seismic performance. This curved roof was not created haphazardly; it was meticulously calculated and simulated. It plays a significant role in earthquake preparedness. When earthquake waves strike and their force is transmitted through the ground to the building, the curved structure cleverly distributes the pressure. The roof's curvature was precisely calculated to ensure that pressure is evenly distributed across its entire surface. Unlike traditional flat roofs, which are prone to cracking or even collapse in areas of concentrated pressure, the curved roof acts as a soft cushion, gradually dissipating the impact of an earthquake. The degree of curvature and radius of each curve were carefully considered and tested. The construction team utilized advanced computer simulations to simulate earthquakes of varying intensities, continuously optimizing the roof's curved design for optimal seismic performance. During construction, the construction team adhered strictly to the design drawings, meticulously cutting and installing each piece of roof material. From the supporting structure to the covering materials, every detail was meticulously considered to ensure the integrity and stability of the curved roof. This curved roof is not only a distinctive feature of the hospital building, but also provides a vital safety net for patients and medical staff, providing them with a relatively safe shelter from possible earthquakes.

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