Water milling construction method for manual digging pile

Abstract

The invention belongs to the technical field of bridge engineering construction, and relates to a water milling construction method for a manual digging pile of a bridge pile foundation engineering. The method comprises the following steps that 1 ) after the hole digging position and the diameter of a pile foundation are determined, drilling operation is continuously carried out along the circumference edge of the pile foundation hole through th water milling drill, the depth of each drilling hole is determined by the length of a drill cylinder, each drilling hole is sequentially tangent or intersected, and the water milling drill is transported out of a rock core after the drilling is finished; 2 ) the central part of the pile foundation hole is crushed and removed by using an air pick, the crushed rock slag is transported away, and the hole digging operation of a section of depth is completed; 3 ) the step 1 to the step 2 are repeated for a plurality of times, and the hole digging operation of the next section of depth is completed until the design depth of the pile foundation hole is reached. According to the method, the drilling process of the method is flexible in operation, the maintenance is simple and convenient, the construction is safe, and the pollution is small; and meanwhile, the vibration and the noise are small, and great advantages are achieved in the area construction which is not suitable for blasting.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering construction, and relates to a water mill drilling construction method for manual hole-digging piles used in bridge pile foundation engineering. Background technique [0002] At present, in the construction of bridge pile foundations in mountainous areas, emulsion explosive blasting is generally used after artificially digging holes into the rock formation. However, this method has a relatively large safety hazard. The personal safety of the residents is unfavorable, and the nuisance is serious. At the same time, during blasting, it is difficult to control the aperture of the hole, resulting in the phenomenon that the aperture is too large and the concrete is super square. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a water mill drilling construction method for manual hole-digging piles with good construction safety, lo...

AI Technical Summary

Problems solved by technology

[0002] At present, in the construction of bridge pile foundations in mountainous areas, emulsion explosive blasting is generally used after artificially digging holes into the rock formation. However, this method has a relatively large safety hazard. The personal safety of residents is not good, and the disturbance is serious

At the same time, during blasting, it is difficult to control the aperture of the hole, resulting in the phenomenon that the aperture is too large and the concrete is oversquare.

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