Thursday, June 10, 2010

Earth House by BCHO Architects

Earth House by BCHO Architects
BCHO Architects have completed this house buried in the ground in Seoul, Korea.
Earth House by BCHO Architects
Called Earth House, the project was built to honour the late Korean poet Yoon Dong-joo.
Earth House by BCHO Architects
The concrete-lined residence has two courtyards with earth floors, to which all rooms are connected.
Earth House by BCHO Architects
Rammed-earth walls make use of the excavated earth while wood from a pine tree from the site is embedded in the concrete courtyard walls.
Earth House by BCHO Architects
Photographs are by Wooseop Hwang.
Here’s some more information from BCHO Architects:

Earth House – BCHO Architects
Earth House is a house of the sky. It is a house built in honor of Yoon Dong-joo, a Korean poet, who wrote beautiful poems about the sky, the Earth, and the stars.
Earth House by BCHO Architects
It is a house which focuses on the primal relationship between nature and humans. It is built with careful consideration of constructional efficiency and our somatic senses.
Earth House by BCHO Architects
The 14m x 17m concrete box is buried in the ground and contains 6, 1-pyeong, rooms and two earth filled courtyards. The ‘small house’ is open to the courtyard which is open to the sky.
Earth House by BCHO Architects
The one pyeong rooms originated from the size of one kan (6×6 ja; 1 ja = approx. 30cm) which are just large enough for an adult to lie down straight.
Earth House by BCHO Architects
The house has a small kitchen, a study, two resting rooms, a bathroom with a wooden tub and toilet, and a wash room. The rooms are all adjacent to each other and open directly to the earth filled courtyard.
Earth House by BCHO Architects
Connecting rooms can be joined to create a bigger room. The house doors are small, entering the house requires making your body into a smaller shape.
Earth House by BCHO Architects
The lateral pressure from the earth on four sides is resisted by thick concrete retaining wall and a flat roof and base plate. There is also a hidden steel column in the center wall that reinforced the structural plates.
Earth House by BCHO Architects
Rammed Earth walls provide all the interior spatial divisions and the walls facing both courtyards.
Earth House by BCHO Architects
The earth used for the walls is from the site excavation. Even though the viscosity of the existing earth was low, only minimal white cement and lime was used so the earth walls can return to the soil later.
Earth House by BCHO Architects
Four gutters are placed in the corners of the courtyard for drainage. The house uses a geothermal cooling system with a radiant floor heating system under the rammed clay and concrete floor. Off-peak electricity is used at night to heat the small gravel under the floor.
Earth House by BCHO Architects
A combination of passive cooling and geothermal tubes which are buried in the earth around the buildings keep the temperature cool in summer and warm in winter.
Earth House by BCHO Architects
A pine tree which was cut down from the site, was sliced into 80mm thick discs and was cast into the concrete walls of the courtyard so as it decays, it will host small plants and new life will arise with time.
Earth House by BCHO Architects
The wooden canopy protecting the entrance into the small house uses 39mm tensile wires.
Earth House by BCHO Architects
Recycled lumber was cut into 30mm x 50mm wide pieces and joined with flat steel bar, keeping the material to a minimum.
Earth House by BCHO Architects
All of the interior furniture and closets are also recycled wood from old Korean gates.
Earth House by BCHO Architects
As Yoon’s poetry expresses hope for the future from times of great peril, which he tried to achieve through self-restraint and self-reflection, our hope is that this Earth House would be a house where we can reflect on ‘ourselves’ while living in the present era.
Earth House by BCHO Architects
Architect : Byoungsoo Cho
Project Team : Hongjoon Yang, Woohyun Kang, Taehyun Nam
Location : 789-55, Sugok2-ri, Jipyeong-myeon, Yangpyeong-gun,
Gyeonggi-do,korea
Earth House by BCHO Architects
Program : Library, Meditation
Site area : 660.00㎡
Gross floor area : 32.49㎡
Total floor area : 32.49㎡
Building-to-land ratio : 4.92%
Floor area ratio : 4.92%
Earth House by BCHO Architects
Building scope : B1F
Structure : RC flat slab
Exterior finishing : Exposed board form concrete,
Rammed earth wall + non-structural wood wall
Rammed Earth Consultant : Keunsik Shin
Contractor : CPLUS International Co. Ltd.
Earth House by BCHO Architects
Photographs : Wooseop Hwang
Design period : 2007.3 ~ 2009.2
Construction period : 2008.7 ~ 2009.2

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