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In underground space, daylighting plays an important role in increasing the spacious sense, improving the ventilation effect, and more importantly, reducing the negative visual and psychological effects brought by the underground space, such as enclosed monotony, unknown direction and isolation. In this paper, the technical means of utilizing natural light in underground space were elaborated from the two aspects of passive daylighting method and active daylighting method, aiming to bring natural light into the underground as much as possible so as to fully satisfy people's longing for nature for those who work and live in the underground space.

Construction Technology and Strategy of Natural Light Environment in Urban Underground Space