Grouting reinforcement test device and method for simulating shield underground butt joint

The invention provides a grouting reinforcement test device and method for simulating shield underground butt joint. The grouting reinforcement test device comprises a first shield tunneling machine, a second shield tunneling machine, a first grouting system and a second grouting system, wherein each of the first shield tunneling machine and the second shield tunneling machine sequentially comprises a shield tail, a middle shield, a front shield, an air brake and a cutterhead; and the first shield tunneling machine and the second shield tunneling machine are coaxially arranged, and the cutterhead of the first shield tunneling machine and the cutterhead of the second shield tunneling machine are oppositely arranged at an interval. By means of the technical scheme, grouting reinforcement of shield butt joint under the complex seepage condition can be achieved, and the effect is remarkable. 本发明提供了一种模拟盾构地下对接的注浆加固试验装置及试验方法，包括第一盾构机、第二盾构机、第一注浆系统及第二注浆系统；所述第一盾构机及第二盾构机均依次包括盾尾、中盾、前盾、气闸及刀盘；所述第一盾构机与第二盾构机同轴设置，且所述第一盾构机的刀盘与所