How to control the quality of works in the construction of waterways by medium and small suction dredgers
How to better achieve the quality of the project. The author based on some experience and accumulation in the normal work
experience and accumulation, from the technical point of view of the preliminary discussion and discussion, and especially for
The common problems of quality control in actual construction have been analyzed in a more general way.
1 The basic principle of construction of small and medium-sized suction boats
The principle of stranded suction vessel construction is relatively simple, and the principle of its steel pile cross-digging method is generally construction personnel
are better understood, is also their common construction methods, this paper is only from the side of the quality control
This paper only decomposes it into 2 aspects from the side of quality control.
1.1 Downward digging of the reamer in stranded suction construction
The downward force given to the reamer in construction is mainly twofold: one is the reamer's own weight; the other is the
The reamer frame lifts the cylinder's downward pressure transmitted when the downward pressure. The reamer is constantly winching the soil and the mud
The vacuum formed by the pump continuously absorbs the soil through the suction port, and the two kinds of downward pressure keep pushing
The reamer is pushed downwards to reach a certain elevation and the depth of the reamer is reflected by a scale connected to the cutter frame.
The depth of the reamer is reflected by the operator by the readout of the scale connected to the tool holder.
1.2 Lateral movement of the reamer
When the main pile is positioned and the second pile is lifted, the left and right crossing cables are collected and released, allowing the reamer to move from side to side.
The path of movement, i.e. the trenching, is a circle with the main pile as the center and the length of the captain and the reamer projection on the river bottom
The radius of the arc is the sum of the lengths of the captain and the reamer on the river bottom.
