| 摘要 |
A device (10) for digging diaphragms, comprising a framework (12) and a half-shell support body (38; 138), fixed in the lower part of the framework (12), which supports a first pair of half-shells (30, 32; 130, 132) moved to open and close by a first actuation system (18, 20, 22, 24). The device (10) also comprises a reservoir (52, 54; 174) operatively connected to the first pair of half-shells (30, 32; 130, 132) to contain the soil dug by such half-shells (30, 32; 130, 132). The reservoir (52, 54; 174) is normally positioned between the framework (12) and the half-shells (30, 32; 130, 132) and has a volume configured to contain an amount of soil substantially corresponding to the amount of soil dug by such half-shells (30, 32; 130, 132) during a single operating cycle of the device (10). The device (10) can also comprise separation means (57, 59; 168, 170) actuated for isolating the soil contained in the reservoir (52, 54; 174). |
