Kajima corporationArchitectural Design Department2020 Sep 29（Tue）

Non‐space business goes to the Moon

Space Architecture Creating 1G Field

in a Lunar Lava Tube

Takuya ONO Japan

In the future

where human beings live in space ,

there will be not only astronauts ,

but also their family members .

Naturally they will give

birth and raise

their child in space .

Humans, who grown up under

low gravity conditions

will not be able to stand

on their own feet

on the earth .

And another

problem is that

whether we can

raise our children

without earth’s gravity .

Osteoporosis Stone formation Inadequate blood flowto the heart muscle Dizziness Muscle atrophy 

I‘m going back to Mars!!

After a long period spent on Mars.

I hate the earth!!

On the earth

When we live in space, we will spend our daily lifeat rotating artificial gravity facilities .

While only for business and leisure time ,we will stand on the surface of the moon or Mars .

I’m going to Mars today.

Spacearchitecture

Mars Orbit around Mars

The artificial gravity network will alsopromote the unity of humankind .

Well, then how do wecreate the 1G –same gravity 

conditionas the earth‐ ? Wow, it doesn’t spill!

First, as you can imagine ,rotational cylinder . 

I show you an lounge design using this method .

I'm dreaming of listening to a wonderful concert viewing the beautiful earth there

The combination of acceleration of Moon gravity and that based on centrifugal force has to be 1G . 

Swirling wine rises along the glass surface . You can apply this principle . 

The gravity there is about 1/6 times as much as the earth’s.You need to increase the gravity a little more by rotation.

Centrifugal force to be required is fixed (constant). Angle between wine surface and ground is fixed (constant).

Lunar PointLunar Angle

Centrifugal Force

Lunar GravityResultant Force

Arbitrary Radius = r

Lunar Curve

Lunar Point

Lunar Glass

Cross section curve equation to assume a bottom point as the origin:

Beautiful!

Y = XR3 2

Bonding the floor panels accordingly to “Lunar Curves” forms “Lunar Glass”architecture.

Architecture on the moon ： Lunar glass

“Lunaｒ residences” cutaway section

Lunaｒ Ocean, spending time on a boat

We want to create delightful spaces on the Moon

After Lunar Glass built, there should be built the transportation systems between the Glasses.

Mass driver. Exchanging of potential energy and kinetic energy. Side rails guided tracks which is not disturbing the ground surface. And their trajectory must be designed based on the comfortable jerks.

On the moon, other than low gravity (1/6G),

there is another problem.

Sheltering.

◆Radiation exposureSolar flare causes serious disaster.

◆Meteorites impactDirectly crash without air friction.

◆AirtightnessDifficult to keep 1 atmosphere inside the

residential area.

◆Temperature changeFrom -100℃ at nighttime to +200℃ at daytime.

We set the construction site inside the lava hole and tube, which are found at Mare Tranquillitatis by Japanese orbiting satellite Kaguya (SELENE).

＠JAXA

the Marius Hills Hole（HH/MMH） Mare Tranquillitatis Hole（HH/MTH） Mare Ingenii Hole（HH/MIH）

Front side of the moon. Back side of the moon.

大野　琢也

名倉　真紀子 名倉　真紀子

Slide 17

大野　琢也1 大野　琢也, 05/10/2018

名倉　真紀子 [2]8 マリウスヒルこちらでは？名倉　真紀子, 25/11/2019

名倉　真紀子 [2]9 静かの海でした。失礼しました。名倉　真紀子, 29/11/2019

Airlock dome. Filled with water and it will block space radiation.

大野　琢也

Slide 18

大野　琢也1 大野　琢也, 05/10/2018

Viewing rotating architecture –Lunar Glass-, under the airlock dome.

大野　琢也

Slide 19

大野　琢也1 大野　琢也, 05/10/2018

Lunar Glass interior. Residential area for daily life.

大野　琢也

Slide 20

大野　琢也1 大野　琢也, 05/10/2018

Total image of the moon village. Cutaway section)

大野　琢也

名倉　真紀子

Slide 21

大野　琢也1 大野　琢也, 05/10/2018

名倉　真紀子 [2]4 施設全体＝moon　Villageで良い？名倉　真紀子, 25/11/2019

We propose safe and delightful places on the moon.

大野　琢也

名倉　真紀子

Slide 22

大野　琢也1 大野　琢也, 05/10/2018

名倉　真紀子 [2]13 Our objective →we proposeに修正名倉　真紀子, 01/12/2019

The next field is in the space.

Thank you very much for kind attention.Ｔａｋｕｙａ ＯＮＯ

takutaku@kajima.comKajima corporationArchitectural Design Department

名倉　真紀

Slide 23

名倉　真紀子 [2]7 もう少し良い英訳ないか？英語版とかないのかな？名倉　真紀子, 25/11/2019