  Coloured Alexander polynomials form a sequence of non-semisimple quantum
invariants coming from the representation theory of the quantum group
$U_q(sl(2))$ at roots of unity. This sequence recovers the original Alexander
polynomial as the first term. We give a topological model for this invariants,
showing that they can be obtained as graded intersection pairings between
homology classes in a covering of the configuration space in the punctured
disc.
