Student(s): Tianchi Zhang
Instructor(s): Katherine Jenkins Matthew Seibert
Course: LARCH 6910: Design 01: Site Matters
Term: Autumn 2016

1. I’m Tianchi Zhang, this is my redesign of the life of Marble Cliff Quarry Site.

2. My strategy of excavation is to create a Seed Bank of which the form of the quarry can help the seeds come via the wind and mature in the site. According to the wind rose in Columbus and the distribution of plant communities, it is acknowledged that the source of the seeds will be at the south-west of the site. So as you can see in my Site Analysis and the illustration of my excavation strategy, my form of excavation is like this. The quarries are like ravines parallel to the Scioto River, and the south-west side of each “Ravine” is more gentle than the other side. In this way, the seeds can come via wind and subsequently fall into the “Ravines” as the wind goes down and up. In addition, the narrow shape is beneficial for seeds to disperse on the lowest layer.

3. Now, please look at my plans and sections in three phases.

First, it was at the phase as an active quarry in 1955. There was only one “Ravine” under excavation. And the plants in the site are mainly the existing species.

Second, it came to the phase when the excavation ceased. In this phase, the second and third were just under excavation, while the first one was maintained as a Seed Bank and regrew gradually with pioneer species and mulch.

Third, it was the phase in 2010, 35 years after decommission. In 35 years, the first quarry ravine had grown into a forest ravine. What is more, the second and third were in the same process in which the vegetation had grown back. In this phase, the neighborhood species play an important role in the site because of the dispersal of seeds from the south-west. And one thing I would like to mention, the second and third ravines reach the water table level, but the first one does not, which is design on purpose to create a variety of moisture condition in the site.

            4. Apart from these presentation boards, I model the quarry site with laser-cut chipboards as a foundation, acrylic as water feature, plaster as texture in the quarry, and pins as canopies or vegetation. I have pins in black and white to show a color variation. And the white pins look better on the plaster and black ones are better on the chipboards.

            5. Last but not the least, although the redesign of the quarry site serves as a seed bank, the ravines, with the help of maintenance, have the paths for walkers, and maybe cyclists as well. As is shown in the phase 3, the quarry site is expected to become green again to attract people to come, even after all the excavation.


            6. In a word, in my strategy, the quarry site is in the form of a seed bank, which facilitates the top soil and vegetation to come back.