Principle: Layered compaction

explosive ordnance survey (UXO)

The problem solved with the BOROPLAST process:

Borehole filling is the last (UXO drilling) step in invasive ordnance reconnaissance and is usually subject to time and cost pressures.

Due to time and cost pressures, simple backfilling techniques are often used, e.g. pouring bulk materials without compaction. This often results in subsoil damage and problems, especially

Penetration of potentially contaminated surface water into the borehole and thus contamination of the groundwater

Water pathways along the insufficiently compacted borehole filling

subsidence due to gradual compaction

Depressions on the ground surface and thus dangers to traffic safety and the safe operation of traffic routes

The BOROPLAST process was developed, patented and technically tested to prevent this type of subsoil damage.

How does the application work?

Professional borehole filling according to official regulations (BFR-KMR) and BOROPLAST patent processes:

Mixing of expanding clay with hydrogel, ideal compactability at 16-18% H2O

mechanically clearing the drilling channel

Many boreholes are no longer accessible at the time of filling due to lateral swelling

The borehole is pushed free with the tamping piston conveyor and thus prepared for the pouring of sealing material

Pouring of damp sealing material according to the desired layer thickness

Compaction with the mechanical tamping piston conveyor to the desired target density in layers up to GOK

What do I need for the application?

• 2 workers personnel
• wheel loader or excavator
• construction site mixer
• construction power 400 V
• Piston compressor machine (rental)
• Boroplast building material consisting of hydrogel and expanding clay

Suitable for:

All KaMiSo drillings

drilling diameter 80 - 500 mm

Jammy Life GmbH developed the BOROPLAST process, applied for a patent, technically tested it and brought it to series production.

well protection and well closure

The problem solved with the BOROPLAST process:

Former wells emit methane and other harmful gases uncontrollably. And wells usually discharge potentially contaminated surface water directly into the groundwater.

Rigid sealing materials such as concrete become porous and permeable over time due to unpredictable forces caused by rock structure, tectonics and weathering. The subsequent repair of a porous sealing material is extremely complex.

BOROPLAST provides a permanently elastic and at the same time plastic borehole seal right from the start. The high proportion of special swellable clay minerals leads to self-healing sealing elements.

How does the application work?

The backfilling is carried out layer by layer from the deepest point of the borehole to a few meters below ground level, depending on the rock formation being drilled through.

The upper approx. 4.50 m are filled in layers with compacted Boroplast sealing material.

What do I need for the application?

2 workers personnel

wheel loader or excavator

construction site mixer

construction power 400 V

Piston compressor machine (rental)

Boroplast building material consisting of hydrogel and expanding clay

Special advantages:

Simple, systematic installation

long-term stability

Insensitive to freeze-thaw cycles

Gas-tight for CH4 emissions

Exact digital documentation with the process's own GeoLOG app

Suitable for:

All well drillings

drilling diameter 80 - 500 mm

Abandoned Gas Wells (AOG)

The problem solved with the BOROPLAST process:

Abandoned fracking wells (Abandoned Gas Wells, AOG) act like chimneys for methane emissions. Methane flows uncontrollably from fracking wells that are incompletely or not closed at all. Methane is a hundred times more harmful than CO2 and is considered the most dangerous greenhouse gas. Several million open wells emit methane uncontrollably.

The BOROPLAST process is a patented process (US Patent Pending) that provides a reliable, safe and long-term stable borehole closure. Methane and other harmful gases no longer flow out of the borehole in an uncontrolled manner.

How does the application work?

• Multi-layer structure of borehole seal according to local geology
• PLUGWELL Installation Well Plug at specified depth
• Layered construction of the machine-compacted BOROPLAST compaction
• Connection of sealing material to the diffusion-open rock
• Measurement of CH4 and other harmful gases before and after installation of the sealing elements
• storing the borehole on the surface
• Inoculation of methanotrophic bacteria into the diffusion-open environment of the overburden (optional)
• Digital Documentation
• CH4 monitoring

Jammy Life GmbH developed the BOROPLAST process, applied for a patent (US pat. pend), technically tested it and brought it to series production.

ground compaction borehole protection

Goals pursued with the BOROPLAST process:

• load-stable backfill unwanted cavities, especially close to buildings, foundations or sheet piling.

• Complete backfilling. The filling of the boreholes and cavities should be complete, i.e. the filling should extend over the entire drilling section. And the filling should be free of cavities.
• 
  Backfilling in layers. The backfilling should be done in layers and compacted layer by layer.

Technical requirements that are met with the BOROPLAST process:

• Complete borehole or cavity filling.     
• Layered compacted backfill up to the ground level
• Use of a mechanically compactable, swellable mineral building material with a target moisture content of 17 – 22% H2O.
• Addition of 10% water to the swelling clay using precisely dosed hydrogel in a ratio of 12:1 (swelling clay:hydrogel)
• Backfill compacted in layers of 50 cm thickness each.
• Compaction by means of machine-based, systematic mechanical, tamping compaction.
• Vibration-free compaction without mechanical impulse.
• Density of the individual layers 1.65 – 2.1 g/cm³.
• low water permeability
• Settlement < 0.1% based on backfill length after 48h.
• Particularly suitable when the subsoil is subjected to dynamic loads.
• Proof through digital documentation / self-monitoring. 

Requirements

It is not so much the type of drilling but rather the method of backfilling that determines the stability of the subsoil.

This gives rise to requirements for the backfill. Backfilling should no longer simply be called "pouring in", but must be a real sealing element. A technical work, a repeatable process. Backfilling should be done in layers. The filling should be complete. If expanding clay is used, it should be moist from the mountain so that it is easy to form and compact.

Void-free, homogeneous compaction

A sealing element that is homogeneous, complete, void-free and compact from the bottom of the borehole to the top of the ground. Nothing can sink.

No sagging, no giving way

The ideal borehole seal should not give way. It should not sag and must withstand cyclical dynamic loads over the long term.

No water flow

The firm interlocking of the sealing element with the drilled rock is probably the most important property of the filling. It prevents water flow or edge flow

Cyclically dynamic load-bearing

High dynamic loads place high demands on the borehole filling.