At first I thought I misread it, but apparently such a barrage existed.
A Chinese Barrage was a barrage fired in order to mislead the enemy into thinking that an attack was coming in its direction when none was planned."
A barrage would commence in preparation for an infantry attack, then it would cease and the infantry would prepare to attack, as normal, but the infantry attack was a feint to get the Germans to man their parapet, once manned the attacking infantry would take cover in their own trenches, and the artillery would open up again on the, now manned, enemy trenches.
Also The 47th London Division used wooden figures in a 'chinese attack' on 25th September at Loos on 25th September 1915 See link: http://1914-1918.invisionzone.com/forums/index.php?/topic/8759-chinese-barrage/
by cyngast moderator
Marie is right. Thanks to her for looking this up.
As she noted, the term Chinese attack was sometimes also used, but both terms refer to operations designed to draw the enemy into the front trenches.