Everything You Should Know About Deep Hole Drilling - deep hole boring

The site is where Town Hall station will be. Presumably the hole is how they get building materials and equipment into the underground site.

To be pedantic the underground Metro Tunnel stations have actually been built to the full length of a 10-car long train, with the platform screen door system knowing whether a 7- or 10-car HCMT has stopped in the platform and at which end, and only opening the required door that line up with the train.

Taps and dies are used to create screw threads, both internal and external. Most are cutting tools, but some are forming tools. Taps are used to cut the threads of the female portion, such as a nut, for example, and this process is called tapping. On the other hand, a die is used to cut or form the male portion, such as the corresponding bolt, and this is called threading.

I was on YouTube a couple of days ago and they are doing tours of Arden Station now. It looks a lot better than it did on Open Day a few years ago, but back then there was no platform doors, no furnishings, no nothing. But now it is just about finished. Hope they have another Open Day for Arden Station, or any other station.

Where are the photos taken from? The PTUA office – or to be precise, the shared workspace where the PTUA has a desk, on the 3rd floor of Ross House, a building in Flinders Lane that hosts a myriad of community groups.

https://www.lendlease.com/au/projects/town-hall-place/ According to the website above Town Hall Place will have connections to the airport rail link in 2029…

Somewhere down there will also be the underground connecting pedestrian tunnel from Flinders Street Station’s Degraves Street subway to the new Town Hall Station.

One diagram shows the platforms will run almost all of that distance. They need to be long enough to cater for 7-car trains, and with provision for future extension to 10 cars, a length of about 230 metres.

Transport blogger / campaigner and spokesperson for the Public Transport Users Association / professional geek. Bunurong land, Melbourne, Australia. Opinions on this blog are all mine.

Both tools can also be used to clean dirt and debris from their respective products, which is called chasing. However, taps and dies will generally remove some material during use, and so specific tools have been created for the specific purpose of cleaning – these are called chasers. These are made of softer materials so that they do not remove more material from the threads.

St Paul’s is on the left, Flinders Street Station on the right, and the rear of Young & Jackson’s pub in the middle – from the different styles it looks like that building was built in several stages over some time.

Panning over to the left, here’s another clue – reverse angle of a familiar sight for pedestrians in the south of the CBD.

Provided they don’t skimp on train frequencies on this line and the connecting lines, it should be a roaring success. Bring it on!

Presumably once they’re done, there will be some aboveground redevelopment (marked in plans as OSD=Over Site Development), noting that this section of Swanston Street general has a 40 metre height limit. Fishing around found one document about future strategy.

Tap and die sets are typically used in the electrical & industrial sectors, as well as servicing and automotive workshops.

Town Hall Station is a big site. From ground level, there are visible signs of construction as far north as the City Square/Collins Street, and as far south as Federation Square.

Using a simple method of securing the rod of the chosen screw, bolt, or pipe in a vice, apply a little cutting paste before placing the die onto the rod and rotating clockwise with a die handle. Each full turn cuts a new thread onto the rod.

[…] can’t see much at the Town Hall site. I haven’t been past State Library or Parkville recently, but when I last looked, Anzac […]

High level diagrams mark the entire site as “Station building”, though from more detailed architectural plans, it appears the ground level footprint will be a fair bit smaller than the current construction site.