The present invention is to provide a multistage hydraulic jack support device and a top-down method using the same, which can reduce construction costs through a simple configuration, greatly shorten construction time, and obtain a cost-saving effect by not using a lowering hydraulic jack with a long hydraulic jack cylinder extension length. The multi-stage hydraulic jack support device of the present invention comprises: a lifting and lowering hydraulic jack support (10) positioned on a vertical support bar (3) installed by having a lower end driven into the ground; a support body support (20) bolted to the vertical support bar (3) so as to be positioned on the lower side of the lifting and lowering hydraulic jack support (10); a lifting and lowering hydraulic jack (30) having a hydraulic jack cylinder (31) with an upper end to be bolted to a lower end of the lifting and lowering hydraulic jack support (10) to be carried in and out; and a plurality of support bodies (40) that support the hydraulic jack cylinder (31) of the lifting and lowering hydraulic jack (30). The present invention supports the lifting and lowering cylinder of a lifting and lowering hydraulic jack by stacking a plurality of support bodies in multiple stages to enable the top-down of a horizontal support bar according to the construction of an underground structure regardless of the withdrawal length of the hydraulic jack cylinder lowered and withdrawn from the lifting and lowering hydraulic jack, thereby greatly improving work convenience and work efficiency and obtaining a cost-saving effect.

    본 발명은 지하구축믈의 슬라브를 시공하기 위해 거푸집슬라브가 설치된 수평지지바를 일정한 간격으로 순차적으로 하강함에 있어서, 간단한 구성인 승하강유압잭과 승하강유압잭을 지지하는 서포트지지체만으로 수평지지바를 지지하여 하강시킬 수 있기 때문에, 간단한 구성에 의해 지하구축물의 시공에 대한 비용절감은 물론 시공시간을 크게 단축할 수 있으며, 복수개 서포트체를 다단으로 적층하여 승하강유압잭의 승하강실린더를 지지하도록 함에 따라, 승하강유압잭으로부터 하강인출되는 유압잭실린더의 인출길이에 관계없이 지하구축물 시공에 따른 수평지지바의 탑다운이 가능하도록 하여, 작업편의성은 물론 작업효율성을 크게 향상시키고, 비용절감 효과를 얻을 수 있으며, 간단하게 승하강유압잭과 다단으로 적층되는 서포트체에 의해 수평지지바가 지지되고 하강됨에 따라, 지하층에 대한 슬라브 구축시에 각 층의 슬라브 구축시공작업이 견고하게 용이하게 이루어질 수 있으며 시공시간의 단축과 시공비용의 절감 효과를 얻을 수 있는 다단식 유압잭 지지장치 및 이를 이용한 탑다운 공법이 개시된다.


    Access

    Download


    Export, share and cite



    Title :

    multistage structured hydraulic jack supporting apparatus and top-down method of construction using the same


    Additional title:

    다단식 유압잭 지지장치 및 이를 이용한 탑다운 공법


    Contributors:

    Publication date :

    2024-05-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    E02D FOUNDATIONS , Gründungen / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



    multistage structured hydraulic jack supporting apparatus

    European Patent Office | 2024

    Free access

    Hydraulic jack with auxiliary supporting function

    LIU JINSHENG | European Patent Office | 2021

    Free access

    Top-down construction method using screw jack

    CHOI JONG BAE | European Patent Office | 2022

    Free access

    MULTISTAGE TELESCOPIC JACK LIFT ASSEMBLY

    SHARIFF MOHAMED ADIBUR RAHAMAN | European Patent Office | 2017

    Free access

    Hydraulic jack construction method for hoisting process

    LIU ZHILIANG / SUI DAPENG / CHU WEIJUN et al. | European Patent Office | 2024

    Free access