摘要:
Um ein aus dem Erdreich oder Bauwerk ausbaubares Zugglied (1) herzustellen, wird dessen Zentralglied (2) vollständig durchgetrennt. Wenn das Zugglied (1) weiter geschwächt werden soll, wird nebst dem Zentralglied (2) noch mindestens ein Aussenglied (3) vollständig durchgetrennt. Entweder um die Trennstelle (4) des Zentralgliedes (2) herum oder um die beiden Trennstellen (4, 6) des Zentralgliedes (2) sowie des Aussengliedes (3) wird an das Zugglied (1) ein Stützelement (5) angebracht. Durch Anwendung einer Last wird das Zugglied (1) im Bereich der Trennstelle (4) des Zentralgliedes (2) bzw. im Bereich der beiden Trennstellen (4, 6) des Zentralgliedes (2) sowie des Aussengliedes (3) abgerissen, so dass das Zugglied aus dem Erdreich bzw. Bauwerk grösstenteils herausgezogen und gegebenenfalls wieder verwendet werden kann.
摘要:
An injection unit (10) for injecting consolidating fluid mixtures under pressure into the soil (T), comprising: - an outer cylindrical body (11); - at least one outlet lateral nozzle (12) defining an injection hole (12a) substantially perpendicular to the axis of the central longitudinal outer cylindrical body (11) and - a conduit (13), for connecting the upper inlet (11a) to the outlet nozzle (12); wherein the conduit (13) has along its axial extent a section progressively decreasing from the upper entrance to the nozzle, so that the fluid mixture (M) which flows along the conduit (13) acquires a progressively increasing speed, and wherein the conduit (13) and the injection hole (12a) of the outlet lateral nozzle (12) have one or more stabiliser ridges or fins (14) which are formed and extend along their surface, from the area of the upper entrance to the outlet of the injection hole, and have the function of stabilising and making laminar the flow of the fluid mixture (M) to enable a high efficiency to the injection head (10) and a high power to the jet emitted by the outlet lateral nozzle (12).
摘要:
The invention relates to anchorage assembly (20), comprising a tendon (10) made of strands (12), a first part (C) with the strands (12) passed through individual perforations of an anchor head (30), a second part (B) with an intermediate portion of the tendon (10) placed within a first tubular member (24) able to receive a removable protective product (38). The strands (12) have said end portion passed through on one hand an opening (27) formed in a bearing plate (26) disposed within the structure (42), and on the other hand said individual perforations of said anchor head (30) which is placed outside of the front face (40) of the structure (42), wherein the anchor head (30) has an outside diameter (D5) smaller than the diameter (D4) of said opening (27) of the bearing plate (26), wherein it further comprises a removable locking system (32) interposed between said anchor head (30) and said bearing plate (26), the presence of the locking system (32) preventing thereby the anchor head (30) to enter said opening (27) and said second tubular member (24) outlet.
摘要:
The present invention concerns a cable anchorage comprising at least one axial channel (6) for accommodating an elongated element (5) with a sheathed portion (5a) and an unsheathed end portion (5b), wherein the channel (6) between a first channel end (3), proximal to a running part of the elongated element, and a second channel end (1) equipped with immobilising device (12), a seal element (26) in the channel (6), a stop element (9) having an end facing said seal element (26) which defines a shoulder (9a), so that an axial displacement of the of the elongated element (5) with respect to the stop element (9) in said channel (6) is possible up to the abutment of the end of the sheathed portion (5a) against the shoulder (9a), creating thereby an abutment position of the elongated element (5) in said channel (6).
摘要:
The invention relates to a damping device (100) for damping relative movements between a stay and a structural element of a civil engineering construction, comprising: - a viscoelastic first damping system (110) for damping a first relative movement component, - a second damping system (120) in series with the viscoelastic first damping system and for damping a second relative movement component.