3. Drain or waste pipes are laid
SLOPE REINFORCEMENT
Applicability
Professor Vladimir Krupoderov, Doctor of Geological and Mineralogical Sciences
"There is annual increase of dangerous geological process development - earthquakes, landslides, mudflows, karsts, erosion, abrasion - in Russia. They cause huge damage, accompanied by fatalities and material losses. In the meantime, this problem is solved on the principle of "a fire brigade": once disaster strikes, we arrive, bury dead, distribute money - and wait till the next time".
Work stages
- Geodesic survey
- Installation of soil anchors or spikes
- Laying of drain and waste pipes
- Fastening of metal or composite grid
- Shotcreting (fibrous concrete) up to designed thickness.
2. Soil anchors are installed
1. Geodesic survey
4. Metal grid is fastened
Shotcreting
A type of concreting where concrete mixture is applied to a work surface using compressed air. Shotcreting advantage over other methods lies within complete mechanization of processes incorporated into a single working operation - concrete transportation, laying and compaction. As a result of shotcreting a soil stabilizing coating possesses unique properties:
- increased mechanical strength (В 60-80 / Btb 3,6-6,0)
- frost resistance F 400-1000
- waterproofing > W 12
- working surface adhesion > 2.0 MPa
- increased crack resistance
This method allows to complete the following tasks:
- soil stabilization
- excavation protection
- slope and rock wall protection
- primary support in underground and
mining development - repair of tunnel coatings and linings
- onshore flood protection
Advantages
- Minimum amount of time for shotcrete soil protection preparation
- Equipment mobility and independence
- Space-saving equipment enables work execution in hard-to-reach spots
- Effective robotized work equipment is able to execute considerable scope of work
- Quick shotcrete strength gain effectively stabilizes soil in a very short time
