Huajia Park Renovation

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02 Huajia Lake Park Renovation

The renovation of a university campus to a comprehensive park Time: Sep.2013-Nov. 2013 Type: Academic | Individual Advisor: Yunlan Deng 11

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SITE STUDY

STRATEGY 1 Water Purification

cyanophyta The experimental fields in the campus eutrophycate the original lake, leading to a explosive growth of algea.

2 Bank Reconstruction

SITE

The site is located in the center area of Hangzhou, China. As part of the Hua jiachi campus of Zhejiang UniversityďźŒit covers about 35.6 hactare. According to the city planning, the campus will be renovated as a comprehensive park to serve new residential districts, commercial centers and schools nearby.

Waterside Deck

10 mi n. w alk

Natural Grassy Bank

alk w in. 15 m

The original bank of the lake is monotonous and lacks of waterfront recreation area.

N 3 Site Culture Reappear Test Fields

The department of agriculture was in this campus and there were many test fields in the site.

China

Zhejiang

Hangzhou

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residential areas commercial areas schools greenbelt areas water

Monotonous Bank

Orchard

Build terrace orchard, agricultural museum to reappear this history.

Eutrophic Water

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Master Plan

Circulation

Main Road Sencondary Road Path

Architecture

Vegetation

Arbor Lawn

25.50m

Vertical Design

Legend

1. Shady Plaza 2. Waterfront Plaza 3. Park Service 4. Dry Fountain 5. Wooden Stage

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6. School History Museum 7. Children‘s activity Area 8. Gym Center 9. Cherry Lawn 10. Horticulture Museum

11. Terrace Orchard 12. Waterfront Platform 13. Center Island 14. Marina 15. Waterside Pavilion

16. Lotus Cove 17. Reed Island 18. Library

0.00m

N 0

20

40

120

200m

Sectorization

recreational activities waterfront areas forest areas wetland areas

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WATER SYSTEM Water Drainage

The water system aims at making full use of the existed lake. By purifying the former eutrophic water and reuse it for recreation and irrigation, the lake would turn from a problem to an advantage of the park.

Water for Irrigation

Rainwater Drainage

Water Reuse Programs

Direct Contact Water for recreation

Field

Huajia Lake Terrace Orchard

Water Quality Restoraion

Goal--Virtuous Circle Phase 1

Phase 2

Phase 3

Dam

Wetland Achieve virtuous circle Wetland becomes livable habitats for birds and aquatic creaturesďź›

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Purified water can be used for recreation and irrigationďź›

The whole water system achieves a vitruous circle, the lake will not easily be polluted.

Undirect Contact Water for recreation

Water Quality Restoration

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WATER QUALITY RESTORATION Bifurcation

Physical Purification

Waterfall and aeration stones increase dissolved oxygen in the water, making it more suitable for creatures.

Narrow channels slow down the flow velocity, and hence prolong the water contact time with soil and plants, getting better purification effect.

Plant Purification Reed, lotus, Pontederia, Sagittaria, Scirpus tabernaemontani and some other aquatic plants absorb nitrogen, phosphorus in the water;

wooden trestle

Animal Purification Carnivours fishes eat small fishes to increase the amonut of plakton which could eat cyanobacteria.

Human Participation The wetland provides a good opportunity for environmental protection education, exploration and recreation.

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1 1

3 2

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Animal Habitat Where peole cannot go are habitats for animals. People can see them from far away and would not disturb them.

Wetland Purification Process

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PURIFIED WATER REUSE ACTIVITIES

+ Main waterfront activity spots

+ 5

+

5

+

+

4

+

+

4

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Section 5-5

Section 4-4

Music Dry Fountain

11m Green Belt

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6m Mix-used Road

30m W i l l o w A r r a y G r a s s y Te r r a c e

30m Natural Grassy Bank

11m Wa t e r s i d e A r e a

29m Music Dry Fountain Plaza

7m

6m

Exercise Plaza Mix-used Road

11m Exercise Plaza

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PURIFIED WATER REUSE ACTIVITIES

+ +

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+

Waterfront Deck Terrace Orchard

◆ Irrigated by purified water ◆ Drain rainwater

◆ Fishing ◆ Admiring lake view

Tourists Marina ◆ Boarding

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