The technology allows using the trenchless method to lay a polyethylene pipe from 100 to 400 mm in diameter.
SET CONTENTS:
- Pneumodrift used for making a leading tunnel;
- Pneumohammer;
- Enlarging head;
- Pneumatic hoisting gear;
- Pneumohammer with an enlarging head with lengthwise channels (when laying a pipeline over 300 mm in diameter).
Well enlargement with partial soil compaction
Operational principle:
Along the route of the pipeline laid, some intermediate assembly wells are arranged. Then, a special pneumodrift of 70 to 90 mm in diameter is used to make a leading well. The hoisting cable is dragged into the leading well, the assembly wells are removed. A slanting tunnel to host a percussion unit with an enlarging head is made to connect to the work well.
Well enlargement with partial soil compaction
Operational principle:
Along the route of the pipeline laid, some intermediate assembly wells are arranged. Then, a special pneumodrift of 70 to 90 mm in diameter is used to make a leading well. The hoisting cable is dragged into the leading well, the assembly wells are removed. A slanting tunnel to host a percussion unit with an enlarging head is made to connect to the work well.
