Can we put 4 pipes into one bore? If yes is there minimum diameter given using for example 1 inch pipe?
2) No you cannot put 4 pipes into one vertical borehole. However, it is common to put 4 or even 6 pipes in to one horizontal trench but you must leave between 18″ and 24″ between each pipe. A backhoe generally charges anywhere from 500 – 800 Kc/Hour. When they are using width of the hoe 0.7m. 100m long and 1.5m deep is estimated to take about 9 hours to do. From this you can see that this option is quite cheaper but less popular, efficient and messier to do. If a horizontal trench is cheaper, why is it less popular. Also, can they not get a wider bucket and possible a stronger backhoe. Horizontal loops are the most popular type of loop in North America because it is much less costly.
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