Invention Grant
- Patent Title: Top-down method for constructing below-grade structures
- Patent Title (中): 构建低档结构的自上而下的方法
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Application No.: US13330008Application Date: 2011-12-19
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Publication No.: US08635833B2Publication Date: 2014-01-28
- Inventor: Richard Roy Anderson
- Applicant: Richard Roy Anderson
- Agency: Gardner, Groff, Greenwald & Villanueva, PC
- Main IPC: E04B1/00
- IPC: E04B1/00

Abstract:
An earth retention system constructed with a top-down process that can be used for permanent below-grade structures, similar to a “soldier beam and lagging wall,” consists of vertical soldier piles, drainage and waterproofing, and a finished, reinforced concrete facing. The concrete facing is placed pneumatically (i.e., using so-called shotcrete). The system is well-suited to constructing below-grade portions of buildings where excavation lay back is not practical or cost effective and can incorporate permanent lateral support from tieback anchors. The below-grade structure is constructed by excavating down part way, constructing a waterproof “lift” portion of the ultimate structure, excavating down another part way, constructing another waterproof lift portion in a manner to be tied in with the lift portion immediately above, and repeating these steps until the below-grade structure is constructed to the desired depth.
Public/Granted literature
- US20120159893A1 TOP-DOWN METHOD FOR CONSTRUCTING BELOW-GRADE STRUCTURES Public/Granted day:2012-06-28
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