我省公路木桥最多,根据事实证明,木桥的腐朽决定了木桥使用寿命,而最易腐朽的部份,就是在桩木靠近低水位及常水位的部份,虽采用防腐缠带包裹了这部份,但由养护中发现缠带易于脱落损坏,尤其是在有排筏飘流物的河流中,更易于受到损坏,难以收到预期效果。因此虽木桥上部构造可以用抽换的办法来加固,而防止这一部份的腐朽迄今无法解决,绝大部份的木桥在这样的情况下被迫重建,成为我省木桥养护上的一个中心问题。经设想用混凝土接桩来代替该极易腐朽的部份,在 According to the facts, the decay of the wooden bridge determines the service life of the wooden bridge, and the most decayed part is the part near the low water level and the regular water level of the stake, This part, however, is found by the conservation that the entrapment is easy to fall off, especially in rivers with raft floats, which are more easily damaged and hard to receive the expected results. So although the upper part of the wooden bridge structure can be used to replace the way to reinforcement, and to prevent this part of the decay so far can not be solved, the vast majority of wooden bridges in such cases were forced to rebuild the province as a wooden bridge conservation A central issue. It is envisaged to replace this perishable part with concrete post