Freezing pipe, frigo, and method of excavating rock-soil by adopting freezing method
A technology of freezing tubes and freezers, which is applied in mining equipment, earthwork drilling, shaft equipment, etc., can solve problems such as picks or excavators not being able to dig, difficulty in excavation, and increased cost of freezing construction, so as to reduce transmission Effect
Active Publication Date: 2015-04-15
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology
[0003] At present, in the construction of the shaft shaft by the freezing method, the rock and soil in the excavation range of the shaft are often frozen, which makes the excavation difficult, and the pick or excavator cannot dig it. If necessary, blasting construction is required; In the case of blasting construction, there is a great risk of freezing the pipe
At the same time, the rock and soil within the barren diameter of the wellbore are frozen, which wastes a lot of cold energy and electricity to some extent, and brings a great increase to the frozen construction cost.
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[0031] A freezing pipe, a freezing device and a method for excavating rock and soil using the freezing method according to the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0032] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0033] see Figure 1 to Figure 3 As shown, a specific embodiment of a freezing tube of the present invention includes a freezing tube body 1 , and a heat insulating material 2 is provided on one side of the freezing tube body 1 . The heat insulating material may be heat insulating reflective paint suitable for low temperature, porous foam material such as polyurethane foam, and the like.
[0034] S...
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The embodiment of the invention discloses a freezing pipe, a frigo, and a method of excavating rock-soil by adopting a freezing method, relates to the technical field of rock-soil excavation, and is invented for controlling the transmitting direction of cold energy and reducing electric power and construction cost. The freezing pipe comprises a freezing pipe body, wherein thermal insulation materials are arranged on one side of the freezing pipe body. The frigo and the method of excavating the rock-soil by adopting the freezing method adopt the freezing pipe to conduct freezing. The freezing pipe, the frigo, and the method of excavating the rock-soil by adopting the freezing method are suitable for the excavation of a vertical shaft and an underground tunnel.
Description
technical field [0001] The invention relates to the technical field of rock and soil excavation, in particular to a freezing pipe for rock and soil excavation, a freezer and a method for rock and soil excavation using a freezing method. Background technique [0002] The method of excavating rock and soil by freezing method is to freeze the rock and soil layer around the excavation project into a closed frozen wall by artificial refrigeration before the excavation of geotechnical engineering, so as to temporarily strengthen the stratum, resist ground pressure, and isolate groundwater. , and then a special construction method for normal construction under the protection of the frozen wall. The construction process is roughly as follows: First, a certain number of freezing holes must be drilled, and freezing pipes or freezers shall be installed in the holes. The low-temperature brine (about -30°C) produced by the freezing station is delivered to the freezer in each hole throug...
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IPC IPC(8): E21D1/12E21D1/14
Inventor 杨仁树杨立云陈骏
Owner CHINA UNIV OF MINING & TECH (BEIJING)