Construction device for grinding and penetrating group piles of shield tunneling machine

The invention discloses a construction device for a shield tunneling machine to grind and pass through a pile group, which comprises a shield cutterhead, a plurality of water cutting bins are arranged on the cutting surface of the shield cutterhead in an array, and reciprocating water cutting seats are arranged in the water cutting bins; the water cutting base can move in the diameter direction of the shield cutter head and touch the inner walls of the water cutting bins on the two opposite sides to form lateral reciprocating displacement. The reciprocating cutting path is formed, the required cutting path is formed only by pushing the sliding block to move in the radial direction without cooperation of other sensors, control pieces and the like, on one hand, the failure rate is low, on the other hand, execution operation is easy, the pile column is conveniently cut into multiple sections, and follow-up pushing, smashing and deslagging are facilitated. 本发明公开了一种盾构机磨削穿越群桩的施工装置，包括盾构刀盘，盾构刀盘的切削面阵列设置多个水切割仓，水切割仓内设有往