I personally suggest getting rid of the calci sand completely from your dragon's cage. Regular children's playsand is a better loose substrate and you can mix it with vermiculite and/or soil, adding water till it packs down nicely but isn't too wet.
With my female laying eggs this year (all infertile, she was never with a male), I was caught by surprise as she hasn't laid any eggs in the last two years since she was mature enough to have eggs, so didn't expect her to have them this year. I used the bag of children's playsand I had on hand, with some vesiculate in a sterlite container( a 55l (51qt) size). On a whim I decided to put a plastic bowl I had lying around which I used for a ball python hide (paid a buck for it at a dollar store and used a drumel tool to cut out a 'cave entrance' but it had broken wider than I wanted, so I sort of disgarded it but didn't get around to throwing out. I buried this under the sand and pushed sand inside, then started a opening leading into the opening in the side of the bowl. My dragon liked this 'cave' and layed in the hole she dug underneath the bowl. Its one way to ensure the cave doesn't fall in on her and the eggs are easier to find (just remove the sand ontop of the bowl then lift the bowl away).
So far my female has laid 26 eggs in her first clutch and 32 in her second clutch. I am very glad they are infertile...I certainly don't have the room or money to set up bins for 58 babies or more.
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PHLdyPayne