2results about How to "Improve pore forming efficiency" patented technology

This invention discloses a construction control method for large-diameter bored piles in hillside soil-rock mixture strata, including the construction of a data monitoring module, the deployment of an initial parameter module, the deployment of a real-time control module, preliminary control of the construction process, dynamic prediction of the construction process, dynamic control of the construction process, and continuous model optimization. The method involves real-time acquisition of drilling parameters, mud properties, vibration signals, and slurry return parameters; deployment of an initial parameter module to generate initial construction parameters based on geological feature vectors; deployment of a real-time control module employing a two-stage hybrid intelligent model architecture to sequentially perform real-time condition diagnosis and intelligent parameter control; implementation of a construction process encompassing preliminary control, dynamic prediction, and dynamic control; and finally, system self-learning through continuous model optimization. This method transforms the construction process from static experience-based dependence to dynamic intelligent control, effectively preventing problems such as borehole collapse and deviation, and significantly improving borehole quality, construction efficiency, and safety.

This invention relates to the field of pile foundation construction technology and discloses a construction method for improving the bearing capacity and durability of mixed-pile foundations in hard strata. The method includes driving a first set of drill rods to drive a soil-breaking drill bit into the strata while simultaneously injecting fluid for cooling. After reaching the target elevation, the drill is lifted upwards, and cement grout, curing agent grout, or water is injected into the hole during the lifting stage. A second set of drill rods is then used to drive a multi-directional mixing drill bit downwards while simultaneously injecting grout, performing multi-dimensional cross-shearing and mixing of the in-situ fractured rock and soil with the grout. The multi-directional mixing drill bit is controlled to rotate in the opposite direction and lifted out of the hole; grouting can be performed or stopped during the lifting stage. Before the mixed medium in the hole initially sets, the precast pile is implanted to the target elevation. This invention employs an in-situ soil-breaking process without slag removal combined with an alternating blade reverse mixing technology using inner and outer pipes. This overcomes the excessive cutting resistance in hard strata and the phenomenon of mud clumps trapping at the bottom of the hole, achieving uniform forced mixing of the medium in the hole, reducing the pile penetration resistance, and improving the overall bearing capacity of the composite pile.