Comments by "Aden Wellsmith" (@adenwellsmith6908) on "Coming TO A STREET Near YOU... (MUD HUT)" video.

  1. Agreed. There as the grand design where the guy built the massive cob home. What's interesting to me is that cob is a composite material. The addition of fibres, such as straw, hair is needed. Just like you put carbon fibre into a plastic matrix, or rebar into concreate. It's clearly fire proof too. In terms of the rain, the bigger issue is ground water. You need the right foundations, to prevent capillary action lifting water destroying the cob from, the base. In terms of ability to last, we have the remains of cob buildings going back 8000 years. Jericho for example. There's a general problem in society that we must have high tech solutions. An example in tunnel boring. Machines costing millions make the holes. But look back at Brunel. To build a vertical shaft they put a cookie cutting ring on the ground. On the inside is a lip. Whilst they were digging out the centre of the shaft, brickies were building a wall on that lip. That increases the weight forcing the cookie cutter into the ground. Dig more out, build the wall, and the cookie cutter sinks. The wall is there and protects the workers against cave in. You can go down a long way. This for example is how Elephant and Castle Tube station was built. You could do the same now. We precast concrete wall sections. a mini digger, and a crane to lift the sections in, the spoil out. Cheap and cheerful. Then at the bottom, the put a cookie cutter in the wall, and started digging. The name for this was the great shield. They bolted metal sections into place to create the tunnel. Then hydraulic rams attached to those sections, pushed the cookie cutter forward. Two men dug out the soil, it was carted away. Then new wall sections added, Cookie cutter advanced, more soil removed. repeat. The numbers I've seen were 20 meters a day. OK. doesn't sound like much does it? But If you want a 1 km tunnel, you start at both ends. Each side needs to do 500 meters. At 20 meters a day, that's under a month. That's nothing. So I think a simple. Just update the method. Conveyor belt to get the spoil out, a small train. You add the rails as you go. Crane is standard to lift the spoil out. At the front a small digger running off compressed air to dig out the material. A small digger modified to lift the wall sections into place. Doesn't take many people and you still get 20 meters a day. So why's it not done? It's because the people running the system get more money by delaying than doing the job. Another example, cross rail. For the cost of cross rail you could have had 150 DLR extensions in London. What effect would that have had on transport in the capital? Could you get 150 in place? No, So you could have had it in Birmingham, Leeds, Manchester, and Liverpool. But they spent it on one line.
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