Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for strutting brace legs in an earth-retaining structure of an excavation support system and system of elements used for purposes of this method
The method is used for strutting brace legs in a quadrangular setup of a rim of brace legs. The method consists in that a spreader (3) is attached to one end of each brace leg (2), while an extendable tensioning unit (4) is attached to the other end of the same brace leg (2). Next, the brace legs (2) are set inside the excavation in such a manner that, in the excavation corners, the ends of the brace legs (2) terminated with spreaders (3) become coupled with the ends of the subsequent brace legs (2) terminated with tensioning units. Once all the brace legs (2) have been coupled with each other, the ends of the brace legs (2), with the spreaders (3) attached to them, are pressed against the sheet piles (1) in the excavation corners by means of tensioning units (4) attached to subsequent brace legs (2). In the setup according to the invention, the spreader (3) is attached to one end of each brace leg (2) forming a rim of brace legs supporting the excavation sheet piles (1), while the tensioning unit (4) is attached to the other end of the same brace leg (2). The tensioning unit (4) comprises an l-section (41) to which an axially arranged lug (42) is mounted at one end, and a retaining block (43) is rigidly mounted on the opposite side. Between the axially arranged lug (42) and the retaining block (43), there is a sliding panel (5) composed of a base plate (51), protruding beyond the l-section (41) outline, spacing plates (52) and limiting plates (53), which altogether embrace the l-section (41) flanges. Welded to the base plate (51), there is a transverse retaining element (55) and two lateral lugs (57). There is also a block hole (44) and a tensioning hole (56), both penetrated by a tensioning stud (7). In each corner of the rim of brace legs (2), the spreader (3) attached to the brace leg (2) of the first pair of brace legs is coupled with the tensioning unit (4) of the brace leg (2) comprising the second pair of brace legs by means of pins (8).
Method for strutting brace legs in an earth-retaining structure of an excavation support system and system of elements used for purposes of this method
The method is used for strutting brace legs in a quadrangular setup of a rim of brace legs. The method consists in that a spreader (3) is attached to one end of each brace leg (2), while an extendable tensioning unit (4) is attached to the other end of the same brace leg (2). Next, the brace legs (2) are set inside the excavation in such a manner that, in the excavation corners, the ends of the brace legs (2) terminated with spreaders (3) become coupled with the ends of the subsequent brace legs (2) terminated with tensioning units. Once all the brace legs (2) have been coupled with each other, the ends of the brace legs (2), with the spreaders (3) attached to them, are pressed against the sheet piles (1) in the excavation corners by means of tensioning units (4) attached to subsequent brace legs (2). In the setup according to the invention, the spreader (3) is attached to one end of each brace leg (2) forming a rim of brace legs supporting the excavation sheet piles (1), while the tensioning unit (4) is attached to the other end of the same brace leg (2). The tensioning unit (4) comprises an l-section (41) to which an axially arranged lug (42) is mounted at one end, and a retaining block (43) is rigidly mounted on the opposite side. Between the axially arranged lug (42) and the retaining block (43), there is a sliding panel (5) composed of a base plate (51), protruding beyond the l-section (41) outline, spacing plates (52) and limiting plates (53), which altogether embrace the l-section (41) flanges. Welded to the base plate (51), there is a transverse retaining element (55) and two lateral lugs (57). There is also a block hole (44) and a tensioning hole (56), both penetrated by a tensioning stud (7). In each corner of the rim of brace legs (2), the spreader (3) attached to the brace leg (2) of the first pair of brace legs is coupled with the tensioning unit (4) of the brace leg (2) comprising the second pair of brace legs by means of pins (8).
Method for strutting brace legs in an earth-retaining structure of an excavation support system and system of elements used for purposes of this method
KWARCIŃSKI PAWEŁ (Autor:in)
02.09.2021
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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