Precast concrete products. Retaining wall elements

2009 ◽  
Keyword(s):  
Precast Concrete ◽  
Retaining Wall

The Construction Technology of Light Masonry Retaining Structure Used in Fluctuating Belt of the Three Gorges Reservoir Area

2011 ◽  
Vol 255-260 ◽  
pp. 602-606
Author(s):  
Long Fei Cheng ◽  
Lin Yan Li
Keyword(s):  
Precast Concrete ◽  
Retaining Wall ◽  
Coarse Grained ◽  
Three Gorges Reservoir Area ◽  
Construction Technology ◽  
Reservoir Area ◽  
Retaining Structure ◽  
Concrete Blocks ◽  
Coarse Grained Soil

Masonry retaining structure consists of precast concrete blocks, which has good looks and is in harmony with environment. Blocks with proper shape can be used in fluctuating belt of the reservoir area. The construction of masonry structure should conform to the following steps: first, excavate the foundation ditch, lay a cushion and arrange the controlling points, insuring the quality of the first layer of blocks; it would be better to choose inorganic coarse-grained soil as filler and to set a water filtering layer with a height more than 30cm behind the retaining wall; carry on the construction of earth filling behind the wall after the blocks are fixed as requested, and then fix the geotechnical grille when the height of earth filling reaches the elevation of the grille; put Geotechnical Fabric between permeable aggregate and the earth filling behind it to keep the two materials from mixing.

scholarly journals A new concept of precast concrete retaining wall: from laboratory model to the in-situ tests

2018 ◽  
Vol 143 ◽  
pp. 012001
Author(s):  
T T Bui ◽  
H V Tran ◽  
A Limam ◽  
M Bost ◽  
Q B Bui ◽  
...  
Keyword(s):  
Precast Concrete ◽  
Retaining Wall ◽  
Laboratory Model ◽  
In Situ Tests

Precast Concrete Soldier Pile System with Corrugated Section Post for Riverbank Protection

2014 ◽  
Vol 567 ◽  
pp. 457-462
Author(s):  
Nur Akmilah ◽  
Ong Chong Yong
Keyword(s):  
Precast Concrete ◽  
Retaining Wall ◽  
Earth Pressure ◽  
Pilot Project ◽  
Structural Shape ◽  
Structural Capacity ◽  
Wall Structures ◽  
Innovative Solution ◽  
Stone Walls ◽  
Soldier Pile

Gabions, rubble stone walls, L-shape concrete retaining wall and revetments are commonly used for riverbank protection against base scouring and soil slope erosion. These conventional solutions for low retaining wall structures are relatively cheap and easy to execute. However, they are proven not lasting with high maintenance costs. Although steel sheetpile walls are structures with better performance for slope stabilization purpose, they are very expensive to build and maintain against corrosion. To address the problem, a new precast concrete soldier pile wall system was developed to provide a permanent and relatively economical solution with several innovative features. The system is comprised of a series of precast posts driven to the predetermined depth and secondary precast lagging elements secured between posts to support the retained earths. The structural capacity that resists lateral load is derived from passive earth pressure mobilized in front the embedded body to toe of the posts. The lagging elements are installed at 0.5m to 1.0m below the river invert levels to provide protection against base scouring. The precast posts and laggings take the efficient structural shape of corrugated section. They are jointed with a specially designed tongue and groove (T&G) slots to facilitate installation. A pilot project where such innovative solution is presented.

scholarly journals Development and Application of Precast Concrete Double Wall System to Improve Productivity of Retaining Wall Construction

2020 ◽  
Vol 12 (8) ◽  
pp. 3454
Author(s):  
Seungho Kim ◽  
Dong-Eun Lee ◽  
Yonggu Kim ◽  
Sangyong Kim
Keyword(s):  
Reinforced Concrete ◽  
Precast Concrete ◽  
Retaining Wall ◽  
Rc Structures ◽  
Existing Problems ◽  
Concrete Panels ◽  
Wall Construction ◽  
Construction Efficiency ◽  
Double Wall ◽  
Wall System

The construction of most apartment underground parking lots utilizes reinforced concrete (RC) structures composed mainly of rebar work and formwork. RC structures lower construction efficiency and significantly delay the construction because they require a large number of temporary materials and wooden formwork. In this study, a precast concrete double wall (PCDW) system was developed to address the existing problems of RC structures and to improve the productivity of retaining wall construction. PCDW is a precast concrete (PC) wall in which two thin concrete panels are connected parallel to each other with truss-shaped reinforcement between them. PCDW can contribute to securing integrity, reducing the delay in construction, and improving quality. An overall process for the member design and construction stage of the PCDW system was proposed, and its improvement effects were examined regarding various aspects in comparison to the RC method.

scholarly journals Development of Architectural Precast Concrete Retaining Wall

1997 ◽  
Vol 8 (1) ◽  
pp. 243-249
Author(s):  
Tatsuo Okajima ◽  
Shinji Kawabe ◽  
Masaki Muto ◽  
Shigeyoshi Matsuoka
Keyword(s):  
Precast Concrete ◽  
Retaining Wall
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