Complete Guide to PV Station Drilling: How to Choose PV Drilling Machines Based on Terrain & Geology?

Q1: What tasks do PV drilling machines undertake in solar power station construction? What challenges do they face?

A : PV drilling machines are mainly used for pilot holes of PV support pile foundations (such as helical piles, cast-in-place piles). Construction faces four major challenges: 1. Complex terrain: Many projects are in mountains and hills, making it difficult for large equipment to access; 2. Variable geology: Often encounters hard soil, frozen soil, and even tuff or granite; 3. Extremely high precision: Support installation requires minimal verticality error in pile holes, otherwise modules cannot connect; 4. Extremely tight schedules: Racing for grid connection deadlines demands strict drilling efficiency.

Q2: For different PV terrains, what PV drilling machine combinations does Leili offer?

A : Leili offers an all-terrain PV drilling matrix:1.0-30° mountains/agrivoltaics: Recommend Bracket PV Drilling Machines (lightweight, single-person pushable, no vegetation damage). 2.Steep slopes over 30°/muddy ground: Recommend Crawler PV Rigs (adjustable wide tracks, strong off-road capability).3.Small/scattered plots/orchards: Recommend Two-Person Hand-Push Drills (extremely portable, high mobility).

Q3: When PV drilling encounters hard rock (like granite, tuff), spiral rigs fail and jam. How to solve this?

A : The drilling process must be switched for hard rock. Leili recommends Pneumatic-Electric DTH Rigs or equipping a DTH impactor. Using high-pressure air to drive the impactor with PDC bits. Compared to pure spiral friction, impact crushing is more efficient and extends bit life. Additionally, the reverse function quickly solves jamming.