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4:20 "Success" isn't necessarily achieved only at the end. Any machine that improves on the previous iterations without suffering some new crippling flaws can be considered a success. The fact that they're not satisfied with being just one or two incremental steps better than before and keep on pushing for significantly greater improvements is one of the big things separating these companies from the generally accepted way of doing things in the past.
The existing companies are doing the same, development in iterations. Only difference is the TBC are copying what they (Half a dozen TBM manufacturers around the world) progressed through 30 years ago. The difference is they are doing it in a fully commercial environment, meeting client deadlines and making a profit as they go.
shhhhht, don't tell them that they are absurd with the Musk love. Don't tell them that the Musk tunnels are also completely unsafe with no escape space, no escape tunnel, etc...
Seems to me that, unless you had offset pairs operating sequentially, you're still moving in stops and starts like an inchworm (correct me if I'm wrong ;?) To my mind what might work better would be a TRACK DRIVEN system - a quad-track setup with 4 equally spaced tracks could provide constant propulsion without pauses AND should also allow easy forward/reverse movement, which not sure the pusher system allows.
I see what you are saying, and you are right about the stop/start requirement, but is is a much quicker re-set on a main beam side gripper hard rock TBM (5 minutes maybe). Double sets and "tractor track" type propulsion has been experimented with in the past (last 40 years or so). The issue generally is that most people don't appreciate the very large forces involved in producing the forward thrust for a TBM. Side wall grippers require very competent rock, a large contact area, huge forward rams and even larger extension (push out) rams to achieve the huge forces involved. Second to that is the space requirements. Main beam, hard rock, small diameter gripper TBM's are very cramped for space due the the large components involved, pushing the support systems (hydraulics, drive motors, controls, etc etc) further away from the TBM back down the support gantries, this is made worse by the need for more hoses/pipes/cables etc. Which in turn take up more space. It is a law of very quickly diminishing returns trying to fit it all in. (This is why TBC can't just add more motors and power to the cutterhead, the thrust bulkheads and main bearing don't fit, not to mention the cutting discs etc.) It is a fine balancing act which gets optimized for each project depending on spacial constraints and ground conditions. Constant production is of little use as the cutterhead needs to be inspected and some of the tools (cutting discs) changed (4-6 hours work) every day in hard rock.
So it is the same diameter as Prufrock 3, about the same length, the same weight and produces the same forward thrust. Cutterhead configuration looks the same and it appears to be an EPB type machine. To be fair the articulation joint looks longer, so it may be designed to go round tighter curves, of course they will have to greatly reduce the thrust to do that (there is always a trade off).
What’s curious is that European model semi trucks have flat noses for the tight city corners and thin and curvy roads of Europe, while American semi trucks have the more aerodynamic pushed out nose to both improve highway efficiency and improve straight line highway driving. It is interesting to see if Tesla will adjust how the semi looks for the standard reasons.
Imagine you have a car factory, and you need to get cars to the other side of a freeway quickly. Oh, no problem, I'll just have my other company dig a giant tunnel under everything... damn.
You REALLY think that the excavated material is not already being used to make money? And that all companies bidding to make the tunnel don't take the revenue / cost analysis of the material type to make their bidding price?
Where the tailings have a value this value is always realized, usually by the Contractor as it is his risk. In most cases the tailings cost money to dispose of, sometimes they can be used for landfill/reclamation, but someone still has to pay the haulage cost. In rare cases where the tailings are competent high quality rock, they can be upcycled for aggregates, even occasionally used in the concrete manufacture for the tunnel linings and fit-out works, but this is fairly rare. They have never shown any rare earth or valuable mineral component that I am aware of. We did get some nice seabed artifacts from the screening plant of a Variable Density TBM in Hong Kong, I have a metal hook from an ancient sailing vessel sitting in a trophy cabinet right behind me.
Not the best thumbnail; we all know that the SPMT "trailer" isn't a trailer. Unfortunate photo - shades of Nikola... The CT works just fine, obviously. Hopefully that was fan made photoshop rather than a release by Tesla.
TBC's Prufrock series of TBM's are all the same diameter (approximately 14 ft). Hence, if stacked vertically they would fit inside a starship. However, given their weight (Minimum 40T component parts) the starship would struggle to lift them off the launch pad. Even if they could carry the weight, the G-force on lift-off acceleration would cause the main bearing (A 40T, 3m diameter, 1.5m deep donut) to smash through the structure and the fuel tanks, which I assume would be a bad thing. Landing them on another planet would also be a bit of a challenge, but a problem way above my pay grade. Not sure what you would do with them once you get them there? Think of the supporting equipment, segments (need to send a lot of them too) , back-up, cutters, generators, grout plant, conveyors. And a 120T crane. Basically I don't think it is on the priority list for planning the Mars colonization. I could be wrong, after all, Thunderbirds took the "Mole" to the moon. Although I did question some aspects of their TBM design as it did have windows in it.
I'm waiting to see if Tesla go for EMF FUSION drilling to vaparize matter in to ash and just suck up the material vapor to process the dust and see what yeld of metals you can find. I toally think QUAZE need to be invested in if they have a concept that works getting geothermal power is important.
I WAS TOLD I WON A TESLA,AND 50.000.00 IN AMERICAN CASH.THE CAR THEY SHOWED HAS LONDON SIDE STEERING WHEEL,AND AMERICAN CASH.500.00 DOLLOR PAPER WORK FEE.FIRST. IS IT IN WITH YOU,IN THIS PRIZE.THANK YOU.
It's possible that the number of ppl holding reservations are not buying Cybertrucks, and Tesla is opening the doors for others to jump the line because of this. Vehicles parked on lots eat up space and bring in no revenue for the company, so it might just be a bottom line business decision by Tesla.
If they figure out how to build fast affordable tunnels, even if the dream of these being made for transportation doesn’t pan out, Boring Company will be worth an absolute fortune. So many cites would love new tunnels for infrastructure projects. This would be a company without rival.
Jules Verne. "All shall seek shelter under rocks or in caves " From Sodom and Gammorra fire lightning EMP's that flashed from the east and goes to the west. These are just the birthing pains. The mystery of the 7 crossings of our stars ecliptic in one rotation of the galactic bulge Jesus held in his hand not you or co2 is causing these the birthing pains of this the millennium of climate change END TIMES. Earth's increasing axial tilt magnetic north not you is thawing frozen CO2 in the Arctic and will cause the new moon to pull the oceans out and around the planet east to west as in the days of Noah. Repent believe in the word warnings of God our Father and be saved or
what a joke!!!! those other TBM manufacturers can make all sizes of TBM for all kinds of uses around the world! from sewages to utility tunnel to tunnel for both cars and trucks.... the boring tunnel company just makes tiny TBM which other manufacturers have been making for decades lol!!!!
cities around the world uses all kinds of tunnels and sizes there are even square shaped tunnels in Asia which is gaining more popularity. for pumped water hydro plants and many others.
Chesed from Chesed Chicago is pronounced with the ch making the sound like you're clearing your throat, not the traditional ch sound. It's a Hebrew word meaning kindness.
It might be worth pointing out that the reason all the Musk companies (Amazon too) is able to iterate so quickly is because they use an AGILE development model. The rapid change at (Boring, SpaceX, Tesla) is because of teams using AGILE.
FWIW Elon is very clear that his companies are neither Lean nor Agile. The reason for this is because they're not copying what anyone else has done and instead take a first principles approach to solving problems. Truly that's what Lean/Agile are about so I do agree with describing their process as Agile :)
@@carholic-sz3qv NASA ain't do shiet. congress won't aprove of anything they wanna do or give them the money too. congress will also demand they outsource everything to numerous companies across the country. including SpaceX.
I remember couple years ago there was another company called Omaze doing the same thing, after the backlash they seized all their operations in united states. This is a highly illegal subject even Mr beast is under investigation for it.
0:30 Boring really look stupid now, China tests trains at 1000/kmh and Boring still didn't even manage one single project.... No need to have Boring it's already obsolete.
@@billweberx Chinese don't need tunnels for most part, so your right 1000kmh trains and no Boring tunnels... But when China needs holes in the mountains Ill bet you it's done at 1/5 the price of Boring.
@@JoelBergmark You can bet, but you'll lose. Standard infrastructure tunneling costs 10 times what the Boring company charges. China may be able to do it at 5X. It's not magic. The Boring tunnels are much smaller in diameter and the boring machines are much faster than any others in the world.
@@billweberx To you, why does drilling speed matter if the overall product concept is obsolete? There seem to be 0 use case where boring makes sense so far. It was an idea but the overall cost and slow rollout vs high speed train is a serious issue, or should tax payers be paying it just because?
That hitch had the entire weight of the truck dropped onto it , that's like 10x the vertical force that the hitch is rated for (1100 lbs). Break it, then try to yank on it with not even a recovery rope, it's going to fail.
@@billweberx cheaper TBM’s? No evidence of such. Cheaper than a same size tunnel? I don’t think so. Cheaper than a modern metro system moving millions of people a day? Yes, very much so. But my bicycle was even cheaper than a TBC tunnel.
We don’t really know about price as they don’t give out any information on the cost of their (4 so far) machines. EPB TBM’s of this size cost around US$8-12M depending on their complexity. The technology TBC are using is basic Earth Pressure Balance methods, with a couple of whistles and bells added. It is generally 30years behind current TBM technology. They have introduced remote control operations (Japan was doing. This 30 years ago), “porpoising” launch and recovery (used previously but only applicable in certain circumstances. Their machines are not faster (generally slower in fact) than the competitors in reality despite many unsubstantiated claims. Installed power is typical for this size machine etc etc. The Loop concept is only applicable on a very small scale and as yet they have not shown any methods to build on-off ramps needed to scale up the proposed system. The investors must be getting nervous about their $750m angel funding.
@@billweberx I will thanks. But my view of him does not answer the point of TBC building tunnels at a similar cost to similar size tunnels. My Toyota Yaris was a lot cheaper than a Tesla Cybertruck. Does that make it far better? It’s certainly a more direct comparison than a mass transit system to a TBC loop tunnel.