MECHANICALLY ANCHORED ROCKBOLTS

BOLTING SYSTEMS FOR TUNNELING AND MINING

VARIOUS EXCAVATION & AUXILIARY METHODS IN TUNNELING

MECÁNICAMENTE FONDEADA PERNOS PARA ROCA

SISTEMAS PARA BOLTING TÚNELES Y MINAS

MÉTODOS EXCAVACIÓN Y AUXILIARES DIVERSAS TUNNELING

LAMANNA LUIGI FRANCO

Independent Technical Consultant

132, via dei Serpenti – 00184 ROMA – ITALY – U.E.

e-mail: lamannaluigifranco @ gmail.com

TYPE OF ANCHORED ROCKBOLTS – SISTEMAS DE ANCLAJE

ADHESION

RESIN INJECTION

CEMENT

“GLOBALSTONE” ORGANO-MINERAL FOAM FOR STRATA CONSOLIDATION - CONVENIENT - SIMPLE - VERY HIGH STR. ANCHOR - PERFECT FOR VERTICAL AND OVERHEAD GROUTING

ROCKBOLTS THESE ARE REINFORCING ELEMENTS WHICH ARE TENSIONED DURING INSTALLATION. THEY CONSIST OF A ROD AND MECHANICAL OF GROUTED ANCHORAGE (RESIN INJECTION) COUPLED WITH SOME MEANS OF APPLYING AND RETAINING THE ROD TENSION. MECHANICAL FIXING ARE SUITABLE FOR HARD ROCK, WHEREAS GROUTED, FIXED LENGTH BOLTS CAN BE USED IN MOST ROCK TYPES. THE LENGTH VARIES BETWEEN 2 TO 8 M FOR RESIN INJECTION BARS, AND 3 TO 20 M FOR AN EXPANDING SHELL FIXING ON A BAR.

PERNOS PARA ROCA (SOSTENIMIENTO CON BULONES) ESTOS SE REFUERZAN ELEMENTOS QUE SE TENSAN DURANTE LA INSTALACIÓN. SE COMPONEN DE UNA VARILLA Y MECÁNICA DE LECHADA ANCHORAGE (INYECCIÓN DE RESINA), CON UNA CIERTA MEDIOS DE APLICAR Y RETENCIÓN DE LA TENSIÓN DE ROD. FIJACIÓN MECÁNICA SON ADECUADOS PARA HARD ROCK, CONSIDERANDO LECHADA, PERNOS LONGITUD FIJA SE PUEDE UTILIZAR EN LA MAYORÍA DE TIPOS ROCA. SU LONGITUD VARÍA ENTRE 2 Y 8 M PARA BARES INYECCIÓN DE RESINA, Y DE 3 A 20 M PARA UNA AMPLIACIÓN DE FIJACIÓN SHELL EN UN BAR.

SILICATE INJECTION “GLOBALSTONE” RESIN

STABILIZED ROOF BEAM

DESIGN METHODS FOR ROOF BOLT SUPPORT - MECHANICALLY ANCHORED ROCKBOLT ROCK STABILIZATION – CONSOLIDATION

BULONAJE EN UN TERRENO INTENSAMENTE PLASTIFICADO INYECCIONS DE CONSOLIDACION Y REFUERZO

PART. “A”

“GLOBALSTONE” and “GLOBALSTONE-LV” resin is a two component injected resin specially designed for rapid stabilization of fractured strata. “ GLOBALSTONE-LV” resin penetrates cracks as small as 0.005 inches and provides

structural strength and flexibility in dry or wet conditions.

PART. “A”

“GLOBALSTONE” ORGANO-MINERAL FOAM FOR STRATA CONSOLIDATION -The product has greater penetration into cracks (0.005 inches); -The product not only anchors iron bars but it also consolidates crumble and unstable rocks; - The product block water inflows.

GLOBALSTONE - NON-FLAMMABLE RESIN CARTRIDGE - FLAMMABLE

YES NO

GLOBALSTONE - NON-FLAMMABLE RESIN CARTRIDGE - FLAMMABLE

YES NO

Rock disaggregation between bolts extends nearly to bolt anchorage

NO

NO

RESIN CARTRIDGE

CEMENT

Rock disaggregation between bolts extends nearly to bolt anchorage

NO NO

SO HERE WHAT CAN HAPPEN WHEN CARTRIDGES ARE USED FOR ANCHORING BARS

NO CARTRIDGES CEMENT

YES INJECTION CHEMICAL GROUTING “GLOBALSTONE”

CONVENTIONAL SOLID BOLT INSTALLATION

THE PNEUMATIC DRIVEN SINGLE PLUNGER PUMP

BOMBA DE INYECCION DE POLIURETANO

INJ ECTION RESIN “GLOBALSTONE”

AIR OUT

NO

EXAMPLE OF ROCK DISAGGREGATION BETWEEN BOLTS EX EXTENDS NEARLY TO BOLT ANCHORAGE

INJECTION CEMENT

NO INJECTION FOAM

NO INJECTION CARTRIDGE

“GLOBALSTONE” AND “GLOBALSTONE-LV” RESIN CURES QUICKLY WITH HIGH ADHESIVE STRENGTH. IT IS UNAFFECTED BY WATER AND WILL NOT ABSORB, SHRINK, EXPAND OR FOAM. “GLOBALSTONE” AND “GLOBALSTONE-LV” RESIN HAS EQUALLY FAST REACTION IN DRY OR UNDERWATER CONDITIONS WITH GOOD ADHESION TO WET AND LOW FRICTION SUBSTRATES.

WATER

UNSTABLE ROCK NO

NO WASHING AWAY OF CEMENT

TREATMENT AND STABILISATION OF THE TUNNEL FACE AND AHEAD OF THE RAVELLING GROUND SECTIONS

TBM - TOPOS

Schematic representation of erroneus procedures sometimes adopted when crossing fault zone. The sketch illustrates a real case in a gneiss rock mass. Tunnel collapse: 1. The TBM is pulled back to remove the gneiss block; 2. the TBM starts and a first collapse occurs; 3. fast ground injections “GLOBALFOAM-SP” are carried out; 4. the TBM restarts and a second collapse occurs with a large water inrush; 5. the TBM is permanentkly stopped.

FAULT GAUGE

SOUND GNEISS

DEEPLY FRACTURED GNEISS

INJ ECTION OF “GLOBALFOAM-SP”

RESIN

BORINGS L= 8,00 M. FOR TREATMENTS AND DRAINAGE LANDSLIDE TREATMENTS

PRE-POST INJECTION DRAINAGE BORING L = 5-10-15-20 M

UMBRELLA PILES L = 15-20 M

FIBERGLASS MICROPILE

INJECTION RESIN FOR TUNNELING AND UNDERGROUND ENGINERING

IMPERMEABILIZACION DE ZONAS PARA EVITAR ASENTAMIENTOS

TBM - TOPOS

WATER BEARING ZONE

INJ ECTION “GLOBALFOAM-WR” RESIN FOAMS UPON CONTACT WITH WATER (One component water sealing injection resin for cracks and fissures in rock)

INJ ECTION “GLOBALFOAM-WR” RESIN FOAMS UPON CONTACT WITH WATER (One component water sealing injection resin for cracks and fissures in rock)

INJ ECTION “GLOBALFOAM-SP” RESIN

PROBE DRILLHOLE

When the most important problem is water the basic principle of pre-ground treatment is to utilized the ground surrounnding the tunnel as a load bearing ring and make it an integral part of the primary support and lining. This conceprt can be reached by creating a tight ground ring around the lining so that the hydrostatic pressure inthe outer permeable ground would act on the grouted ring instead of on the lining.

TEST METHODS FOR POLYMER RESINS FOR TUNNELLING

WATER SEALING - N. PHOTO 1 ÷ 10 SINGLE COMPONENT PERMANENT FLEXIBLE WATER SEALING INJECTION GROUT FOR CRACKS AND FISSURES IN CONCRETE AND ROCK

“GLOBALFOAM-WR”

N. PHOTO 2 N. PHOTO 1

WATER INGRESS

N. PHOTO 3

N. PHOTO 4

FOAM POLYMER RESIN “GLOBALFOAM-WR”

N. PHOTO 6

N. PHOTO 5

FOAM POLYMER RESIN “GLOBALFOAM-WR”

N. PHOTO 7

N. PHOTO 8

N. PHOTO 9

N. PHOTO 10

IN CASE OF WATER INTRUSIONS, TRANSUDATION OR HIGH PRESSURE WATER, THE INJECTED RESIN, WITH ITS ADHESION PROPERTIES EVEN ON WET SURFACES, ASSURES A PERFECT SEALING. PERMANENT STRUCTURAL CRACK SEALING OF UNDERGROUND STRUCTURES-TUNNELS, SHAFTS, UNDERPASSES, ECC. FILLING OF WATER BEARING VOIDS. SEALING OFF FLOWING WATER. PENETRATION OF FISSURES SMALLER THAN 0,05 MM. “GLOBALFOAM-WR” CAN BE INJECTED AS A SIMPLE RESIN, OR HAS THE OPTION TO HAVE A FASTER REACTION IN CASE OF FLOWING WATER BY ADDING A SMALL QUANTITY OF THE ACCELERATOR "CATALYST"

PURPOSE OF TEST:

EN CASO DE INTRUSIONES AGUA, TRANSUDATION O ALTA PRESIÓN DEL AGUA, LA RESINA INYECTADA, CON SUS PROPIEDADES ADHESIÓN INCLUSO EN SUPERFICIE MOJADA, GARANTIZA UNA PERFECTA ESTANQUEIDAD. PERMANENTE ESTRUCTURAL CRACK DE SELLADO DE ESTRUCTURAS SUBTERRÁNEAS-TÚNELES, POZOS, PASOS INFERIORES, ECC. LLENADO DE HUECOS ACUÍFERAS. SEALING DEL AGUA CORRIENTE. PENETRACIÓN DE FISURAS MÁS PEQUEÑO QUE 0,05 MM. "GLOBALFOAM-WR" SE PUEDE INYECTADO COMO UNA RESINA SIMPLE, O TIENE LA OPCIÓN DE TENER UNA REACCIÓN MÁS RÁPIDO EN CASO DE AGUA CORRIENTE POR AGREGAR UNA PEQUEÑA CANTIDAD DE LA "CATALIZADOR" ACELERADOR

PROPOSITO DEL TEST:

“GLOBALFOAM-PU-NF “ RESINS TWO-COMPONENT POLYURETHANE INJECTION RESIN ENSURING HIGH REACTIVITY, EXCELLENT MECHANICAL STRENGTH AND CHEMICAL STABILITY, DESIGNED FOR WATERPROOFING AND CONSOLIDATION OF ROCK, FRIABLE LAND AND STRUCTURES AFFECTED BY HIGH-PRESSURE WATER, AS WELL AS TO CONVEY WATER IN ACQUIFERS AND FILL VOIDS AND CAVITIES

GLOBALFOAM-PU-NF

TUNNEL PRESENCE OF WATER WITH A FAULT ZONE

ROCK INJECTION - Fast setting pre-injection systems - Cavity filling - Ground stabilization ANCHORING - Perfect for vertical and overhead grouting - Rock bolting INJECTION - Pre-injection for water stopping and ground consolidation - Post-injection for strata consolidation, cavity filling and water stopping

FIELDS OF APPLICATION IN TUNNELLING, MINING AND FOUNDATION ENGINEERING - Sealing of cracks, sealing against water, sealing against pressing water, sealing of excavations, sealing against gas, sealing of anchor heads, installation of injection anchors, rock stabilization, injections in unconsolidated ground, rock consolidation, filling of cavities, TBM excavations, .............

INYECCIÓN DE ROCA - sistemas de pre-inyección de ajuste rápido - el relleno de cavidades - estabilización del terreno ANCLAJE - perfecto para inyección vertical y elevado - empernado de roca INYECCIÓN - pre-inyección para parar el agua y la consolidación del suelo - post-inyección para la consolidación de los estratos, relleno de la cavidad y la parada del agua CAMPOS DE APLICACIÓN EN TÚNELES, MINERÍA Y LA FUNDACIÓN DE INGENIERÍA - sellado de grietas, sellado contra el agua, el sellado contra agua a presión, el sellado de las excavaciones, el sellado contra gases, el sellado de las cabezas de anclaje, instalación de anclajes de inyección, la estabilización de la roca, las inyecciones en suelo no consolidado, la consolidación de la roca, el relleno de cavidades, excavaciones TBM (Topos y Escudos),.......

GLOBALFOAM-SP Organic-mineral two components resin foam, characterized by low viscosity, excellent chemical stability, mechanical resistance and good adhesion on rock stabilization, cavity filling, protection and water proofing of reservoirs and aqueducts, water conveyance in water bearing stratum. GLOBALFOAM-WR Polyurethane resin, suited for sealing of cracks, joints, cavity filling, and for consolidation of crushed manufacture made of stone or cement, in presence of dampness. In contact with water starts a chemical reaction that forms a closed-cells consolidating foam, which is waterproof and has a good chemical stability. GLOBALFOAM PU-NF Two-component polyurethane injection foaming-resin, self-extinguishing, ensuring high reactivity, excellent mechanical strength and chemical stability; designed for waterproofing and consolidation of rocks, friable land and structures affected by high-pressure water, as well as to convey water in aquifers and fill voids and cavities. It penetrates into the smaller fissures and seals them even against significant water infiltration. It always hardens, with or without water .It forms a stable, resistant, hard yet flexible foam, characterised by high chemical-mechanical stability.

POLYMERS RESINS FOR TUNNEL ( AND MINING) RESINAS DE IMPERMEABILIZACION

GLOBALSTONE Ideal for water-proofing fractured rock, consolidation of loose land and rock, crack and cavity filling. Also designed for construction, lining and insulating materials, protection and water-proofing of reservoirs and aqueducts, water conveyance in water-bearing stratum. This resin is especially suitable for bonding injection drill bolts because the resin cure within just a few minutes and the bolt can be loaded in a very short time. It is a rapid-hardening and rapid-curing silicate resins. It is free of CFC and halogen. It may be used with overhead boreholes with large diameters as well since it hardens very quickly right after mixing. GLOBALSTONE-LV Organic-mineral two components resin, not expansible, characterized by low viscosity, excellent chemical stability, mechanical resistance and flexibility. Ideal for water-proofing fractured rock, consolidation of loose land and rock, crack and cavity filling. Also designed for construction, lining and insulating materials, protection and water-proofing of reservoirs and aqueducts, water conveyance in water-bearing stratum. Especially suitable for bonding injection drill bolts because the resins cure within just a few minutes and the bolt can be loaded in a very short time. GLOBALFOAM-PH It is a two component injection product, intended for cavity filling, air and gas sealing and the consolidation of highly fractures strata. It is applied using a metering pump and mixing gun. The special properties of GLOBALFOAM-PH (rapid application, high expansion rate, high compressive strength, fire resistance and excellent antistatic properties) produce a cost-effective, quick and safe cavity filling solution. As it is classified as fire resistant, GLOBALFOAM-PH is also suitable for sealing off underground heating, for aiding fire-fighting operation in deep mines and to stop gas leaks.

GLOBALFOAM-3V Organic-mineral two components resin foam, characterized by excellent chemical stability, mechanical resistance and good adhesion on rock, suitable to fill the hollow-spaces behind the ashlars, cavity filling, protection and water proofing of reservoirs and aqueducts, water conveyance in water bearing stratum, gas leaks stopping. Foaming reaction doesn’t suffer from presence of water. It is self extinguishing, absolutely non-toxic and non-pollutant.

FOAM POLYMER RESIN

“GLOBALSTONE” RESIN

GLOBALSTONE Ideal for water-proofing fractured rock, consolidation of loose land and rock, crack and cavity filling. Also designed for construction, lining and insulating materials, protection and water-proofing of reservoirs and aqueducts, water conveyance in water-bearing stratum. This resin is especially suitable for bonding injection drill bolts because the resin cure within just a few minutes and the bolt can be loaded in a very short time It is a rapid-hardening and rapid-curing silicate resins. It is free of CFC and halogen. It may be used with overhead boreholes with large diameters as well since it hardens very quickly right after mixing. GLOBALSTONE- LV Organic-mineral two components resin, not expansible, characterized by low viscosity, excellent chemical stability, mechanical resistance and flexibility. Ideal for water-proofing fractured rock, consolidation of loose land and rock, crack and cavity filling. Also designed for construction, lining and insulating materials, protection and water-proofing of reservoirs and aqueducts, water conveyance in water-bearing stratum. Especially suitable for bonding injection drill bolts because the resins cure within just a few minutes and the bolt can be loaded in a very short time

ROCK BOLTING SYSTEM FOR TUNNEL (AND MINING) RESINAS DE CONSOLIDACION Y REFUERZO

BONDING OF ANCHOR RODS AND GRP BOLTS FOR SECURING OF THE ROOF IN GATEROADS

FOR SECURING THE RIBS

EXPOSURE OF OUR PRODUCTS IN INTERNATIONAL TRADE FAIRS

prof. ing. Luigi Franco, LAMANNA

INDIPENDENT CONSULTANT Tunnelling Consultant Specialized in Mechanized Tunnelling with

Hard Rock TBM and Soft Soil EPB Shields

E-mail: lamannaluigifranco @ gmail.com epc.consulting.italia @ gmail.com

132, via dei Serpenti – 00184 ROME, ITALY, U.E.

INDUSTRIAL FACTORY: GLOBALCHIMICA srl

16-18, via del Boschetto 10040 LOMBARDORE (TORINO) – ITALY - U.E.

E-mail: info @ globalchimica.com

TECHNICAL AND COMMERCIAL DEPARTMENT:

DIVISIONS: - TUNNELLING - MINING - CIVIL ENGINEERING UNDERGROUND ENG. - TBM-EPB (GREASE-SEALANTS, SOIL CONDITIONING FOAMS AND POLIMERS)

E.P.C. CONSULTING srl Prof . Eng. LAMANNA LUIGI FRANCO

132, via dei Serpenti – 00184 ROME – ITALY - U.E.

E-mail: lamannaluigifranco @ gmail.com / epc.consulting.italia @ gmail.com

Technical Sales:

Indipendent Consultant Tunnelling and Mining

Specialized in Mechanized Tunnelling with Hard Rock TBM and Soft Soil EPB Shields

Expert and Consultant in Structural Reinforcement

Prof. Ing. LAMANNA LUIGI FRANCO

132, via dei Serpenti – 00184 ROMA – ITALY – U.E.

E-MAIL: lamannaluigifranco @ gmail.com

Address Factory:

GLOBALCHIMICA

16 – 18, via del Boschetto – 10040 LOMBARDORE (TORINO) – ITALY - U.E.

E-MAIL: info @ globalchimica . com