Archivi tag: no-dig engineering

HYBRID PIPE JACKING/DTH CONCENTRIC AIR POWERED HAMMER TECHNIQUE

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Client: AC Srl Unipersonale – SIEMENS Spa – Italy

Year: 2011

What I did: I made the detailed design and work supervision of the installation, by hybrid  pipe jacking/down-the-hole concentric air hammer technique, of three DN300 (12”) steel casings and the installation, by slip-lining, inside the 12″ steel casings, of three HDPE DN280 (11″) pipes, for the crossing of a rocky hill – Length of each crossing: 106,0 meters. The HDPE DN280 pipes, installed inside the 12″ steel casings, were used by SIEMENS to lay hi-tension electrical cables. A MITSUBISHI ULTRA MAXBIT 12″ were used to perform the boreholes.

HYBRID PIPE JACKING/DTH CONCENTRIC AIR POWERED HAMMER TECHNIQUE
Longitudinal section of the crossing - the limestone was deeply fractured (RQD = 20%)
Topographic survey of the rocky hill to cross.
The down the hole air powered concentric hammer - provided by MITSUBISHI
Scheme of the the down-the-hole concentric air powered drilling head, provided by MITSUBISHI.
Customized pulling head, to pullback HDPE DN280 pipes inside the 12
Detail of the pulling head before the assembling.
The crown (DN300 - 12

 

 

LARGE DIAMETER DYNAMIC PIPE BURSTING FOR SEWER REPLACEMENT

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Client: EUROSCAVI Srl – Italy

Year: 2016

What I did: I made the detailed design of the replacement by dynamic pipe bursting of a DN600 (24″) sewer concrete pipe with a DN800 (32″) HDPE pipe; I coordinated all the geological/geotechnical preliminary survey and I also made the detailed design of the bursting-expanding head, tailored shaped to work with a Tracto Technik TAURUS rammer (24″). The expander has an outside diameter of 1000 mm. The soil was sand with coarse to very coarse gravel.

LARGE DIAMETER DYNAMIC PIPE BURSTING FOR SEWER REPLACEMENT
Plan view of the pipe replaced by dynamic pipe bursting.
Longitudinal section of the pipe replaced by dynamic pipe bursting.
The soil was sand with coarse to very coarse gravel.
Longitudinal section and plan view of the insertion pit.
The tailored-shaped bursting-expanding head.
The insertion stage.
Close-up of the connection between the tail of the expander and the new HDPE pipe
The insertion stage.

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SEWER MAINS AND HOUSE CONNECTIONS BY HDD

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Client: SE.T.A. Srl (today ETRA Spa) – Italy

Year: 2003-2004

What I did: I made the detailed design of the installation of pressure and gravity sewer pipes by directional drilling; I carried on the training of the technical personnel (engineers, supervisors and operators). I developed a dedicated and complete HDD pit launched installation system for the connection of houses to the sewer mains. I also wrote two technical standards: the first for preliminary underground mapping and the second for the construction of house connections by using pit launched HDD machines.

SEWER MAINS AND HOUSE CONNECTIONS BY HDD
longitudinal section of an HDD installation.
longitudinal section of an HDD installation.
longitudinal section of an HDD installation.
longitudinal section of an HDD installation.
longitudinal section of an HDD installation.
longitudinal section of an HDD installation.
plan view of an HDD installation.
plan view of an HDD installation.
plan view of an HDD installation.
Detail of the connection between a concrete shaft and the newly installed culvert.
Pit launched HDD system for the connection of houses to the sewer main.

RD07-13

click on the image to see the index of the standard norm (language: Italian)

RD07-14

click on the image to see the index of the standard norm (language: Italian)

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HDD IN CHALLENGING ROCK CONDITIONS AND COMPENSATION GROUTING BY HDD

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Client: SERREMAR Srl – Italy

Year: 2006-2008

What I did: I made the detailed design of the installation of underground pipes, ranging from 100 mm (4″) to 500 mm (20″), by Horizontal Directional Drilling, in hard to very hard rock; HDD at sharp radius in rock and application of HDD to pre-tunneling compensation grouting and directional underground injections for insulation and treatment.

HDD IN CHALLENGING ROCK CONDITIONS AND COMPENSATION GROUTING BY HDD
Aulla (Italy) - a rocky hill to be crossed
Aulla (Italy) - the job site at the start point - the rig
Aulla (Italy) - the start point - drilling through abrasive sandstone.
Marina del Cantone (Italy) - tracking diagram of the pilot bore.
Marina del Cantone (Italy) - the job site at the start point.
Marina del Cantone (Italy) - Guiding the drilling head.
Marina del Cantone (Italy) - A conventional rig equipped with a directional down-the-hole assembly.
Marina del Cantone (Italy) - a rock reamer ready to be inserted into the pilot bore.
Arenzano (Italy) - drilling path (longitudinal section).
Arenzano (Italy) - plan view of the installation.
Arenzano (Italy) - the reamed borehole, ready for the pullback of the product pipe.
Prissiano (Italy) - the job site at the start point.
Prissiano (Italy) - the DTH directional water powered hammer.
Prissiano (Italy) - a rock reamer ready to ream the pilot bore.
Prissiano (Italy) - The assembled pipe ready to be pulled back into the reamed borehole.
Sevilla (Spain) - feasibility study of the use of HDD for a pre-tunneling compensation grouting
Sevilla (Spain) - feasibility study of the use of HDD for a pre-tunneling compensation grouting
Sevilla (Spain) - feasibility study of the use of HDD for a pre-tunneling compensation grouting
Bologna (Italy) - Design of the compensation grouting by HDD, before the passage of two TBMs (High Speed Train)

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REHABILITATION OF INTERNAL PIPES IN BUILDINGS

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Client: IN.TEC. Srl – Italy

Year: 2008-2010

What I did: I performed the development of proprietary technology applications; strategic marketing & technical-commercial communication.

REHABILITATION OF INTERNAL PIPES IN BUILDINGS
Simulation of the inversion process - the liner used in this process has a very high flexibility to perfectly follow multiple curves of the pipe.
Air inversion of the liner impregnated with an epoxy ambient curing resin, for the rehabilitation of a vertical stormwater pipe.
Simulation of the inversion process - the liner used in this process has a very high flexibility to perfectly follow multiple curves of the pipe.
The AD page of IN.TEC. is just a sample of the wide communication campaign carried out during this collaboration.

RD28-04

click the image above to open a technical note about IN.TEC. peculiar technologies.

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INSTALLATION IN VERY HARD AND ABRASIVE ROCK OF A DN700 CAST IRON WATER PRESSURE PIPE

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Client: KLAPFER BAU Srl – SANTATO MARCO TRIVELLAZIONI – Italy

Year: 2011

What I did: I made the detailed design and supervision of the installation by microtunneling and HDD, in very hard and abrasive quartzite-diorite rock, of a DN700 mm (28″) cast iron water pressure pipe – the work was split in two section, each one 80 m (265 ft) long. The borehole diameter was 800 mm (32″). A very challenging job for the extreme hardness and abrasivity of the rock. The water pressure pipe is part of a mini hydro-power plant in the Alps (Italy).

INSTALLATION IN VERY HARD AND ABRASIVE ROCK OF A DN700 CAST IRON WATER PRESSURE PIPE
The rig while drilling the pilot bore.
Down-the-hole air hammer ready to drill the pilot bore.
The double stage DN800 -600 back-reamer used for the final reaming
The borehole after intermediate reaming.
The borehole after the final reaming.
The auger boring machine (ABM).
A 32
The borehole after retracting the SBU, at 40 m of bore length.
Close-up of the two-rows TCI disk cutter used to complete the bore.
The borehole after retracting the SBU, at 62 m of bore length.
The borehole after retracting the SBU, at 62 m of bore length.

 

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PROJECT OF A DN900 GAS PIPELINE INSTALLATION BY HDD

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Client: GHIZZONI Spa – Italy

Year: 2007

What I did: I made the design of 6 crossings by HDD for the installation of a DN900 gas pipeline, for a total length of 3.536 m (11.600 ft).

PROJECT OF A DN900 GAS PIPELINE INSTALLATION BY HDD
Plan view and longitudinal section of an HDD crossing - DN900 steel pipe, 484,0 m long.
Plan view and longitudinal section of an HDD crossing - DN900 steel pipe, 503,0 m long.
Plan view and longitudinal section of an HDD crossing - DN900 steel pipe, 533,0 m long.
Plan view and longitudinal section of an HDD crossing - DN900 steel pipe, 686,0 m long.
Plan view and longitudinal section of an HDD crossing - DN900 steel pipe, 686,0 m long.
Plan view and longitudinal section of an HDD crossing - DN900 steel pipe, 464,0 m long.

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DESIGN OF THE REHABILITATION OF LARGE DIAMETER SEWER MAINS BY CIPP

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Client: ROTECH Srl – Italy

Year: 2010

What I did: I made the detailed design of the rehabilitation, by thermal and UV CIPP, of DN1200 and DN1000 (48 and 40 in) sewer mains for a total length of 220m, at the Petrochemical Plant of Porto Marghera, Italy; detailed design of the rehabilitation, by thermal CIPP, of DN1200 (48″) sewer mains for a total length of 1.250 m, in the cities of Scafati, Pompei e Sant’Antonio Abate, Italy.

DESIGN OF THE REHABILITATION OF LARGE DIAMETER SEWER MAINS BY CIPP
Comprensorio Medio Sarno (Italy) - longitudinal section of the sewer system to be rehabilitated.
Comprensorio Medio Sarno (Italy) - plan view of the sewer system to be rehabilitated.
Petrochemical Plant of Porto Marghera (Italy) - Plan view of the sewer line to be rehabilitated.

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UV-CIPP AT THE INTERNATIONAL AIRPORT OF ROME FIUMICINO

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Client: Blueco Srl – Italy

Year: 2010

What I did: I made the detailed design and project management of the rehabilitation, by UV-CIPP, of air-conditioning pipes DN350, laid under runways, at the international airport of Fiumicino Leonardo da Vinci (Rome, Italy).

UV-CIPP AT THE INTERNATIONAL AIRPORT OF ROME FIUMICINO
Longitudinal section of the pipe to be rehabilitated - the host pipe present a 90deg curve and a vertical section.
Preparing the access to the host pipe.
Video inspection of the host pipe.
Preparation of the UV-CIPP liner.
Insertion of the liner into the host pipe.
The capstan winch while pulling the liner into the host pipe.
The UV light core used to polymerize the foto-polymerizing resin.
Inserting the UV light core into the liner.
Inflating the liner before starting the UV polymerization of the resin.
The diagram of the final air pressure test.
The final result: the liner perfectly fits the host pipe.

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RADAR SYSTEMS FOR CIVIL ENGINEERING

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Client: IDS Spa – Italy

Year: 1999-2000

What I did: I made the feasibility study for the application of radar systems in the Detection While Tunneling (DWT), in the mapping of reinforced concrete structures and in the massive surveying of road pavement.

I also studied the marketing strategies for the diffusion of radar system for underground utilities detection and mapping.

RADAR SYSTEMS FOR CIVIL ENGINEERING
marketing strategies for radar system for utilities detection and mapping.
marketing strategies for radar system for utilities detection and mapping.
marketing strategies for radar system for utilities detection and mapping.
Reinforced Concrete Structures Mapping by radar system - feasibility study.
DWT - Detecting While Tunneling.

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