Selection Method of Qualified Multifunctional Anchoring Drilling Rig for Foundation Engineering

Selection Method of Qualified Multifunctional Anchoring Drilling Rig for Foundation Engineering

Selecting a qualified multifunctional anchoring drilling rig is crucial to ensure foundation engineering construction quality, efficiency, and safety, and the selection needs to comprehensively consider engineering characteristics, stratum conditions, equipment performance, and qualification standards. 

First, match equipment performance with engineering demands. For conventional foundation pit anchoring and foundation reinforcement projects, select medium-power anchoring drilling rigs with 0–170 r/min adjustable rotating speed and 30–40 kN feeding force, which meet conventional hole-forming and anchoring construction requirements. For deep foundation and hard stratum projects, prioritize high-torque, high-feeding-power equipment with maximum drilling depth exceeding 100 meters and adjustable drilling angle of 0–90° to adapt to complex hole position construction. Second, verify equipment qualification and certification. 

Qualified drilling rigs must pass national construction machinery safety certification and quality inspection, with complete factory test reports, parameter certificates, and safety production qualification documents, eliminating unqualified modified and refurbished equipment. Third, check functional versatility and adaptability. Excellent multifunctional anchoring drilling rigs should integrate drilling, grouting, anchoring, and hole cleaning functions, support switching of multiple construction processes, and adapt to foundation soil, sandy soil, gravel, and weathered rock strata. Fourth, inspect equipment stability and safety configuration. 

Prioritize full-hydraulic transmission structures with stable power output and low failure rate, equipped with perfect safety protection devices such as overload protection, hydraulic pressure limiting protection, and emergency stop devices to avoid construction safety accidents. Fifth, consider site adaptability and after-sales service. Select crawler-type walking structures for complex foundation sites with uneven terrain to ensure flexible movement; confirm complete after-sales maintenance and accessory supply systems to guarantee timely fault handling and equipment maintenance during construction. Comprehensive selection based on the above indicators can screen out high-quality qualified anchoring drilling rigs suitable for foundation engineering.