It is a very exciting time for the BDPL5 Cordilleras Micro-Tunnel Project right now! The Contractor is getting the Right of Way ready for micro-tunneling to begin September 20, 2012.
On the Receiving Pit Side (near Woodhue Court and Edgewood Road), the Contractor drilled relief holes through the harder rock of the tunnel shaft. This will allow for easier excavation of the receiving pit when they reach the bedrock. Crews will start digging the tunnel shaft with an excavator on Wednesday of this week. All work will be on the Right of Way and should have minimal impact to traffic on Edgewood Road.
 |
| View of the Receiving Pit Side from Edgewood Road |
 |
| Drilling the relief holes in the harder rock |
 |
| Loo-drill attachment to drill |
The tunnel subcontractor on the Jacking Pit Side (on the Bennett Road median) began mobilizing to the site in preparation to begin micro-tunneling. Another large crane was brought on site to lower the MTBM (micro tunnel boring machine) and other materials into the 40ft deep shaft.
The guide rails were lowered into the shaft last week. This guide rail system will keep the MTBM on line and will guide the 60” water pipeline into 72” bored tunnel. It is estimated that the Contractor will launch the tunnel head this week and begin the micro-tunnel on September 20, 2012. (More on the anatomy of a MTBM later this week- stay tuned!)
We appreciate the community's cooperation with the delivery of the equipment and materials!
**Please remember to follow all traffic controls and flaggers when driving on Cordilleras Road or Bennett Road. Truck deliveries are expected to continue this week as the Contractor sets up the work area.
 |
| Mobilizing the crane onto Bennett Road |
 |
| Lowering the railing into the tunnel shaft |
 |
| Prepping to lower next set of railing |
 |
| Lowering the railing into the tunnel shaft |
 |
| Another view inside the tunnel shaft |
No comments:
Post a Comment