I am not sure if this is what you want, but here's something - You can use hold on to plot each section at a time.
Note that this is just an example. You should store all the sections in an array and use a for loop to plot all the surfaces on the same figure.
If you need more help, please attach your data (or a sample of the data if it is too large to upload), provide relevant information and ask a specific question.
%Example to show a simple idea
[X1,Y1] = meshgrid(1:5,1:20);
Z1 = sin(X1) + cos(Y1);
[X2,Y2] = meshgrid(8:10,1:20);
Z2 = sin(X2) + cos(Y2);
%Gap in the x data in the range (5,8)
figure
%plot first part
surf(X1,Y1,Z1)
%plot second part
hold on
surf(X2,Y2,Z2)
xticks(0:10)
