Arch centring stabilizing device and use method thereof
A technology of stabilizing devices and arches, which is applied in vertical shaft equipment, earthwork drilling, wellbore lining, etc., and can solve problems such as difficulty in empty soil cleaning, void phenomenon, and uncompacted initial lining
Inactive Publication Date: 2020-01-17
GANSU ROAD & BRIDGE CONSTR GROUP +1
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Problems solved by technology
[0006] (3) When the vertical arch frame is lowered, it is difficult to clean up the virtual soil at the connecting plate of the arch foot of the upper step, which may easily cause the initial lining to be not dense, or even voids
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[0025] The following describes exemplary embodiments of the present invention with reference to the accompanying drawings, which include various details of the embodiments of the present invention to facilitate understanding, and should be regarded as merely exemplary. Therefore, those of ordinary skill in the art should realize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Likewise, for clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.
[0026] figure 1 Is a schematic diagram of an arch stabilization device according to the present invention; such as figure 1 Shown:
[0027] The device includes a protective wall 1, a connecting piece 2, a connecting base 3, and a connecting rod 4. The protective wall 1 is a flat plate, which can be connected in sequence by the connecting piece 2, and encloses a closed sp...
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The invention discloses an arch centring stabilizing device and a use method thereof, and relates to the technical field of tunnel construction. The device comprises protection walls 1, connecting parts 2, a bottom plate, a connecting base 3, and a connecting rod 4. The protection walls 1 are in a flat plate type, and are connected in sequence through the connecting parts 2, the protection walls 1are fixedly connected with the connecting base 3, the connecting rod 4 is movably connected with the connecting base 3, angular protection walls 5 are further included, and are in a right angle shapeor round angle shape, and the protection walls 1, the connecting parts 2, the connecting base 3, the connecting rod 4 and the angular protection walls 5 are made of steel, and one or multiple inserting pieces 6 are arranged on the protection walls 1 and the angular protection walls 5. Sedimentation of arch foot virtual soil can be weakened, deforming of an arch foot connecting plate due to damageto an upper step during lower step excavating can be prevented, the tunnel environment complex changeable needs can be met, flexible dismounting and mounting are achieved, and construction difficultyis reduced.
Description
Technical field [0001] The invention relates to the field of tunnel construction, in particular to an arch stabilization device and a method of use thereof. Background technique [0002] In the multi-step tunnel excavation, the step method (up and down steps method) is the most commonly used construction method. The construction process involves multiple arch frame connections, and how to ensure the horizontal position of the arch frame is very important. Keeping the position of the arch frame horizontal will affect the bearing capacity of the arch frame and the risk of future deformation. [0003] Therefore, the connection between the upper and lower steps of the loess tunnel is a difficult and important point in the construction. Irregular and unreasonable connections are prone to uneven force, which leads to uneven settlement of the arch. During the construction of the loess tunnel, there are mainly the following construction difficulties at the upper and lower steps connectio...
Claims
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IPC IPC(8): E21D11/18
CPCE21D11/183
Inventor 李远新田青业张效乾杨永永王海堂
Owner GANSU ROAD & BRIDGE CONSTR GROUP