Innovative prestressed scaffolding system

Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention

Reexamination Certificate

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Details

C405S282000, C405S274000, C405S275000, C405S276000

Reexamination Certificate

active

07144200

ABSTRACT:
Disclosed herein is a support system that is temporarily placed below ground for preventing collapse of the excavated ground when a subway is constructed or a basement of a building is built. The excavated ground or load is supported by means of supporting members, the supporting members being pre-stressed by means of tensioning members and tendon support members serving to support the tensioning members. Consequently, the number of struts for supporting vertical piles and wales is considerably reduced so that obstacles in the under-ground space when it is excavated are removed. Furthermore, the constructional efficiency of the underground space is greatly improved, and the cost of construction is sharply reduced.

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patent: 6616380 (2003-09-01), Russell et al.
patent: 5-118036 (1993-05-01), None
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patent: 2000-0049712 (2000-08-01), None
patent: 20-247053 (2001-09-01), None
patent: 10-0313721 (2001-10-01), None
patent: 20-0258949 (2001-12-01), None

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