Underground diaphragm wall dismantling device and method based on microwave cracking concrete technology
An underground continuous wall and concrete wall technology, applied in building maintenance, construction, building construction, etc., can solve the problems of complicated equipment, high labor intensity, and high use requirements, and achieve improved demolition efficiency, high degree of automation, and high cost. low investment
Inactive Publication Date: 2020-12-15
SOUTHEAST UNIV
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Problems solved by technology
[0003] The invention provides an underground diaphragm wall demolition device based on microwave cracking concrete technology. Compared with the existing methods, the method proposed by the invention effectively solves the problems of high labor intensity and complicated equipment required for manual demolition, and at the same time It solves the problems of high requirements and inconvenient use in blasting demolition, and effectively improves the demolition efficiency of reinforced concrete underground diaphragm walls
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Embodiment 1
[0039] Based on the principle of microwave cracking concrete technology above, this program provides an underground diaphragm wall demolition equipment based on microwave cracking concrete technology, which is used for the demolition of underground diaphragm walls, such as figure 1 and figure 2 As shown, the demolition equipment of this solution includes a lifting propulsion device 10 , a shielding box 9 , a microwave system and a microwave power supply 1 . The lifting propulsion device 10 is placed on the ground, and the supporting device of the lifting propulsion device 10 is retractable, so that the dismantling equipment can be lifted and lowered. It can move back and forth, left and right, and the moving device can adopt universal wheels. The shielding box 9 is arranged on the top of the lifting propulsion device 10 , and the shielding box 9 can move horizontally on the top of the lifting propulsion device 10 . The microwave system is encapsulated in the shielding box 9...
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The invention relates to an underground diaphragm wall dismantling device and method based on a microwave cracking concrete technology. The device comprises a dismantling device body, wherein the dismantling device body comprises a microwave power supply, a microwave system, a shielding box body, a lifting propulsion device, a microwave focusing antenna, a twisted waveguide, a laser displacement sensor and a steel bar cutting machine. The method comprises the steps that the laser displacement sensor is used for measuring the distance between the microwave focusing antenna and an underground diaphragm wall, the distance between the dismantling device and the underground diaphragm wall is kept within 1cm through the lifting propulsion device, the underground diaphragm wall is irradiated by utilizing appropriate microwave power until thermal spalling occurs, after concrete spalling is completed, steel bars are cut off by using the steel bar cutting machine, and concrete blocks are removedby using a crane. According to the device and method, the characteristic that high-power density microwaves are used for selectively heating mortar or high-loss reinforcing ribs is utilized, so thatthe concrete is cracked, and controllable non-blasting dismantling of the underground diaphragm wall is realized.
Description
technical field [0001] The invention belongs to the technical field of dismantling an underground diaphragm wall, and in particular relates to a device and method for dismantling an underground diaphragm wall based on microwave cracking concrete technology. Background technique [0002] At present, in the process of rail transit construction in soft soil areas, the underground diaphragm wall is the most common form of deep foundation pit support structure due to its advantages of high degree of mechanization, less disturbance to the surrounding environment, good waterproof performance, and high structural rigidity. In the process of shield machine access and exit, wind pavilion construction, station transfer and reconstruction and expansion, it is often necessary to dismantle the underground diaphragm wall. The underground diaphragm wall is a typical reinforced concrete structure, and its demolition methods mainly include manual demolition and controlled blasting demolition....
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Login to View More IPC IPC(8): E04G23/08
CPCE04G23/08E04G23/082
Inventor 郑彦龙马中骏傅环宇李建春
Owner SOUTHEAST UNIV