Browse Forums Building A New House 1 Nov 16, 2014 7:43 am Hi All,
Our land slopes left to right with the left side ~1m higher than the right side's natural ground level. The site was cut yesterday morning brought the building area to the level of the the right hand side NGL and therefore the left hand side is around 1m cut. Our suburb in Melbourne's outer east has had 40+mm of rain in the last 24 hours. I haven't been back to the block yet and am fearing that I'll see a pool. Our site is classed as P so lots of clay, especially the deeper the cut. How bad is this situation? Will this affect the slab in the long term especially after reading about slab heave and now the clay would be expanded? Engineering has only required metal screw piles around the perimeter of the slab and internally only for the garage. There isn't really warm weather coming up in Melbourne so it won't dry up any time soon... Re: How Bad is Site Cut then LOTS of Rain? 2Nov 16, 2014 8:14 am 40 mm of rain might sound like a lot to a Melbournite but it isn't. The 'rain' has been more of a soaking shower but certainly nothing that the soil matrix cannot absorb plus subsoil hydraulic conductivity is a slow process. If you dig a hole a couple of hundred mm deep, you will find that the soil is still dry and the surface will soon dry off over the next few days as there will only be the occasional isolated light shower from now on. I would look on the current 'rain' event as a positive but asking the question shows that you have an awareness of current building matters which is admirable. All the best with your build. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: How Bad is Site Cut then LOTS of Rain? 4Nov 16, 2014 9:39 am Thanks SaveH20 and mgilla. It's reassuring to think of it as a positive. I'm going off to see my 'pool' soon. SaveH2O If you dig a hole a couple of hundred mm deep, you will find that the soil is still dry and the surface will soon dry off over the next few days as there will only be the occasional isolated light shower from now on. It's now been cut 'flat' so would you still expect pooled water to dry off? Even with a clay bed? mgilla Its actually a very good thing, helps with the compaction of the fill. There's no fill as it's a straight cut but I can still see how it will help. Re: How Bad is Site Cut then LOTS of Rain? 5Nov 16, 2014 9:46 am noisuf It's now been cut 'flat' so would you still expect pooled water to dry off? Even with a clay bed? Yes. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: How Bad is Site Cut then LOTS of Rain? 7Nov 16, 2014 4:07 pm Went out to have a look today and it's not as bad as I'd imagined. There are pools but I can see it's receding even so slightly. SaveH2O Yes. Thanks! JB1 As above, it won't hurt long term but it will just be very soggy for the concreters. Couldn't be much worst than my site 2 years ago in eastern Melbourne too. Wow, they do work in all conditions. What time of year was your build? I guess they have to work all year round. After the slab is poured and set for 24 hours, I'll be chanting for the rain gods to bring in the rain.......I'm hard to satisfy....haha... Re: How Bad is Site Cut then LOTS of Rain? 8Nov 17, 2014 8:25 pm I'm very happy to say they came back today to cut it a bit more and the site is basically dry!!! I can see they dug a small channel to drain the water out to the street. I guess they experience this all the time. Thanks all! PM me your email. I have a build excavation calculator you can use based on your plans to double check what your builder is telling you. Cheers Simeon 1 10243 Can someone please offer some advice? Im DESPERATE. Because I'm completely and utterly exhausted. How long are variations taking with other companies at the moment? We… 0 18470 My land is 260m2 (10m x 26m) located in claymore NSW. Under campbelltown council. I know in general the following setbacks would apply ground floor side setback =… 0 6927 |