Adjustable cross wire initial phase combined drill bit for deep mixing pile machine
A deep mixing pile, initial phase technology, applied in the direction of drill bits, sheet pile walls, drilling equipment, etc., can solve problems such as blade collision, achieve the effect of ensuring smooth progress and solving collision problems
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[0016] Example 1:
[0017] The invention is used in a certain pouring construction project with a mixing depth of 10m for a deep mixing pile machine, and the specific assembly conditions and requirements are as follows:
[0018] The present invention proposes an adjustable cross-hair initial phase combination drill bit for deep mixing pile machine. Before assembly, the initial phase between the blades of adjacent drill bits in the same layer is determined according to the mixing depth, and the initial phase is obtained according to a certain pouring construction project overview The elastic modulus E of the drill pipe is 206850000kN / m 2 , The moment of inertia of the drill pipe is 0.00003586m 4 , The density of the mixed cement mortar is 1900kg / m 3 , The binding force of cement mortar is 0kPa, the internal friction angle of cement mortar is 35°, and the calculated value of gravity g is 10N / kg. When drilling 10m, the calculated turnover radius is 62.7mm. According to the attached ...
Example Embodiment
[0021] Example 2:
[0022] The present invention is used in a certain pouring construction project with a mixing depth of 11.5m for a deep mixing pile machine. The specific assembly conditions and requirements are as follows: The present invention proposes an adjustable cross-wire initial phase combination drill for deep mixing pile machine application The structure of the deep mixing pile machine is the same as that of Example 1. The calculation parameters of a pouring construction project with a mixing depth of 11.5 m are the same as those in the case of Example 1 except for the mixing depth. When drilling 11.5m, the calculated turnover radius is 109.8mm. According to the attached figure 2 The dotted line shown in the figure represents the trajectory of the drill axis rotation with a radius of 109.8mm. Take the example where the axis distance between adjacent drill bits is 450mm. At this time, the diameter of the drill bit is 350mm, that is, the length of the blade in the sam...
Example Embodiment
[0023] Example 3:
[0024] The present invention is used in a certain pouring construction project with a mixing depth of 13.8m for a deep mixing pile machine. The specific assembly conditions and requirements are as follows: The adjustable cross wire initial phase combination drill for deep mixing pile machine proposed by the present invention is applied to The structure of the deep mixing pile machine is the same as that of Example 1, and the calculation parameters of a pouring construction project with a mixing depth of 13.8m are the same as the calculation parameters of the engineering situation in Example 1, except for the mixing depth. When drilling 13.8m, the calculated turnover radius is 227.6mm. According to the attached figure 2 The dashed line shown in the figure represents the trajectory of the bit axis with a radius of 227.6mm. Take the example where the axis distance between adjacent drill bits is 450mm. At this time, the diameter of the drill bit is 350mm, that i...
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