By using the inverted beam method,the reinforcement of the surface layer of the prefabricated field panel is obtained.By simplifying the stress model through the phenomenon of void at the bottom of the panel,the reinforcement of the bottom layer of the prefabricated field panel is obtained.Through multiple practical applications in pre-drilling engi-neering,it has been shown that the prefabricated field panel meets the design specifications and actual usage requirements of the pre drilling engineering site.Taking into account factors such as panel assembly time and construction difficulty,bearing capacity requirements of the site structure,turnover transportation,and material costs,it is recommended that the size of the prefabricated field panel be 3 m×1.5 m× 0.15 m,and the reinforcement area of the surface layer be 302 mm2.The reinforcement area of the bottom layer of the board is 1 278 mm2,Maximize the usability and applicability of prefabri-cated field panels for pre-drilling engineering.
shale gaspre-drilling engineeringprefabricated field panelstheoretical calculationsinverted beam method
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