Construction method of foundation pit digging system
A construction method and system technology, applied in excavation, infrastructure engineering, soil protection, etc., to achieve the effect of improving stress properties, reducing difficulty, and connecting firmly
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[0032] The present invention will be further described below in conjunction with the examples. The description of the following examples is provided only to aid the understanding of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
[0033] refer to Figure 2 to Figure 8 As shown, in the excavation system of the foundation pit, the main blast hole 2, the buffer hole 3 and the pre-split hole 4 are successively arranged in the soil layer 1 to be excavated, and the hydraulic combined blasting construction technology is used for blasting construction; 10 and the bearing platform 12 are provided with a platform buttress 13 and a platform runner 14, so that the bearing platform 12 is firmly connect...
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