Open type TBM with segment installation function
An open type, segment assembling machine technology, applied in shaft equipment, shaft lining, tunnel lining, etc., can solve problems such as low efficiency, corroded equipment, polluted environment, etc., to reduce construction personnel and auxiliary equipment, reduce construction costs, The effect of improving construction efficiency
Active Publication Date: 2015-07-01
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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Problems solved by technology
When the traditional open TBM breaks the surrounding rock, it is necessary to install segments, bolts, steel arches, and sprayed concrete. It is necessary to install the anchors to drive rivets to the tunnel, and the concrete layer is sprayed into the tunnel by a concrete shotcrete machine. The construction personnel cooperate at the same time, and it is equipped with a variety of material transportation systems. The operation is complex and inefficient, which limits the tunneling speed of the TBM
In addition, concrete and its additives seriously pollute the environment and corrode the entire equipment, thus greatly restricting the application of traditional open TBM in the field of tunnel construction
Method used
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[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] An open TBM with segment installation function, such as figure 1 As shown, it includes cutter head 1, main drive 2 and shield 3. The cutterhead 1 is a rock-breaking disk body, which is located at the front end of the TBM and is used for breaking surrounding rock. The cutter head 1 is fixed on the front end of the shield 3 , the rear end of the cutter head 1 is fixedly connected with the main drive 2 , and the middle part of the main drive 2 is fixed on the shield 3 . The main drive 2 can drive the cutter head 1 to rotate, so that the cutter head 1 can rotate clockwise or counterclockwise with variable speed, thereby braking the cutter head 1 .
[0018] The shield 3 is provided with a main beam 5 , and the front end of the main beam 5 is fixed on the middle part of the shield 3 . The cross-sectional area of the main beam 5 is a rectangle, s...
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The invention discloses an open type TBM with a segment installation function. The open type TBM comprises a cutter head, a main drive and a shield. The cutter head is fixed to the foremost end of the shield, the main drive is fixed to the shield, and the rear end of the cutter head is fixedly connected with the main drive. A main beam is fixedly arranged in the middle of the shield, a segment erector, propulsion oil cylinders and supporting shoes are arranged on the main beam in sequence, piston rods of the propulsion oil cylinders are hinged to the supporting shoes, the supporting shoes are arranged on the main beam in a sliding mode, and grooves are formed in the supporting shoes. The supporting shoes arranged on the main beam support the two sides of a tunnel, the propulsion oil cylinders enable the cutter head to perform tunneling under the propulsion of the main drive, the segment erector splices prefabricated segments, and then tunnel supporting is achieved. In this way, the quality of tunnel supporting is greatly improved, the multiple construction processes of anchor rod driving and guniting construction are omitted, the construction efficiency and the construction environment inside the tunnel are improved, accordingly, the number of constructors and auxiliary devices is decreased, and the construction cost is lowered.
Description
technical field [0001] The invention relates to the technical field of tunneling equipment, in particular to an open TBM with the segment installation function. Background technique [0002] The full-face tunnel boring machine (TBM) integrates the parallel and continuous operations of the construction procedures such as excavation, support, and slag discharge, and is often used for excavating hard rock geology. The TBM uses the hob on the rotary cutterhead at the front end to squeeze and shear the broken rock, and then conveys the gravel through the belt conveyor. When the traditional open TBM breaks the surrounding rock, it is necessary to install segments, bolts, install steel arches, and shotcrete. It is necessary to install anchors to drive rivets to the tunnel, and use a concrete shotcrete to spray the concrete layer into the tunnel. The construction personnel cooperate at the same time and are equipped with a variety of material transportation systems. The operation i...
Claims
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IPC IPC(8): E21D9/08E21D11/00
CPCE21D9/0607E21D11/08
Inventor 李建斌王杜鹃高渐宝张世展翟国强张啸张玉峰
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD