Device for self-balancing measurement of resistance of multiple pile sides and pile ends of expansion piles and method
A technology of pile end resistance and self-balancing, applied in the direction of measuring device, measuring force, test of foundation structure, etc., to achieve the effect of high economic effect, convenient operation and small space occupation
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Embodiment 1
[0056] see Figure 1-3 , a self-balancing device for measuring multiple pile side and pile end resistances of expansion piles, it includes a real simulation box 10, a reaction force frame 1 is fixed on the real simulation box 10, and the inside of the real simulation box 10 is filled with useful For the coral sand filling body measured by simulation, the top of the coral sand filling body is provided with a filling soil cover plate 4, and the central part of the filling soil cover plate 4 is processed with a central hole with the same diameter as the expansion pile, The central hole is provided with an expansion pile cover plate 13, and a plurality of jacks 2 are respectively arranged between the filled soil cover plate 4, the expansion pile cover plate 13 and the top cover of the reaction frame 1; the coral sand filling A video monitoring system is buried inside the body; expansion piles are buried in the center of the coral sand filling body, and a loading device for applyin...
Embodiment 2
[0065] A self-balancing device for measuring the resistance of multiple pile sides and pile ends of an expansion pile. The method for measuring the side resistance of a pile body includes the following steps:
[0066] Step1: Prepare materials: Prepare reaction frame 1, jack 2, first stress sheet 3, soil filling cover 4, micro camera 5, micro camera tube 6, pumping tank 7, vibration table 8, loading box 9, real simulation Box 10, water injection pipe 12, expansion pile cover plate 13, second strain gauge 14, oil pump 15, oil pipe 16 and computer 17;
[0067] Step2: Fill the real simulation box 10 with coral sand, use a hollow drill to drill a hole in the center to the bottom, and suck out the coral sand in the middle hole to form a hole;
[0068] Step3: Place three loading boxes 9 equidistant from bottom to top in the hole, place one loading box 9 and pour a section of concrete as an expansion pile until it is poured to be flush with the coral sand surface, and the lead wire of...
Embodiment 3
[0072] A self-balancing device for measuring the resistance of multiple pile sides and pile ends of expansion piles. The method of measuring pile body end groups includes two different schemes:
[0073] The first scheme is characterized in that it comprises the following steps:
[0074] Step1: Prepare materials: Prepare reaction frame 1, jack 2, first stress sheet 3, soil filling cover 4, micro camera 5, micro camera tube 6, pumping tank 7, vibration table 8, loading box 9, real simulation Box 10, water injection pipe 12, expansion pile cover plate 13, second strain gauge 14, oil pump 15, oil pipe 16 and computer 17;
[0075] Step2: Fill coral sand in the real simulation box 10 sealed with a steel plate at the bottom, drill a hole in the center with a hollow drill, and reserve coral sand at the bottom of the hole with a depth of 16 times the pile diameter to ensure that the boundary effect is met, and pump it out of the middle hole coral sand;
[0076] Step3: Place the loadi...
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