FIELD: construction.
SUBSTANCE: invention relates to excavating equipment and is intended for construction of underground pipelines by horizontal directional drilling method. Method of underground passage by trenchless method consists in the following: when drilling a pilot well in alternating stable soils of 3 categories and higher with falling soil of 1 and 2 categories, casing pipes are pulled simultaneously with the help of a dragging device. Device for pulling has ledges engaged with projections of casing pipe, due to which after reaching the required place, performing rotation, casing pipe is disconnected and fixed along unstable sections, thus allowing to remove drilled rock of next stable section on surface.
EFFECT: technical result is higher efficiency of laying underground passages by trenchless method.
1 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF TRENCHLESS PIPELINING MAINLY UNDER WATER BARRIERS AND PROTECTED AREAS | 2007 |
|
RU2330917C1 |
| METHOD FOR UNDERGROUND TRENCHLESS INSTALLATION OF PIPELINES | 2012 |
|
RU2526474C2 |
| PROCESS OF FORMATION OF HORIZONTAL HOLES | 1998 |
|
RU2156847C2 |
| PIPELINE PULLING METHOD IN HORIZONTAL WELL | 2019 |
|
RU2734198C1 |
| METHOD OF TRENCHLESS LAYING OF PIPELINES | 2023 |
|
RU2818796C1 |
| METHOD FOR BUILDING WELLS WITH REMOTE FACE | 2006 |
|
RU2295024C1 |
| METHOD OF PIPELINE TRENCHLESS LAYING | 2000 |
|
RU2189422C2 |
| TRENCHLESS PIPELINE REPAIR METHOD | 2022 |
|
RU2786612C1 |
| METHOD FOR TRENCHLESS LAYING OF PIPELINES AND DIRECTED DRILLING MACHINE | 1996 |
|
RU2075574C1 |
| METHOD TO PRODUCE WELLS IN SOIL FOR TRENCHLESS INSTALLATION OF UTILITIES (VERSIONS) | 2012 |
|
RU2495198C1 |
