Fidic - who is liable for multiple rework due to rain

Hi Guys We are on a piping job using fidic and we are suffering huge delays due to reworking the pipe bedding up to 7 times sometimes due to rain.Ripping it all out etc.Our contract states rain EOT will be calculated using annual rainfall figures and extreme rainfall will be compensated using the usual formula which Is pretty straight fwd Have any of you worked on a piping project using fidic, who is liable for the rework of bedding we are losing weeks at a time even with small sections Thanks in advance