เสียงที่ใช้ร่วมกัน

Excavation & Service Damage “Study and read wayleave conditions… use a GPR scanner before trenching… clearly mark services and train staff. Frogfoot Service Integrity Checklist/Handover must be completed before trenching. Remove grass/plants neatly and replace after work. Pilot holes must be done sufficiently and per wayleave conditions. Avoid picks near underground services. Do not cut tree roots thicker than 70–100 mm — tunnel around roots. Install demarcation netting before excavating; keep