在钻孔施工中,“架桥”工作是经常进行的,例如定向钻进或偏斜补取岩矿芯等通常都要先进行“架桥”.根据以往的经验,“架桥”的方法大多用木塞、草把或竹筋草塞等传统方法.但采用这些方法架出来的“桥”强度小、牢固性差,承受不了多大的力量而在施工中往往会发生位移.特别在较软岩层中使用这些方法“架桥”,更不容易 In drilling construction, “bridge” work is often carried out. For example, directional drilling or biasing of rock cores usually involves “bridges.” Based on past experience, the “bridge” method Most of the traditional methods such as cork, straw or bamboo sticks are used. However, the “bridges” constructed by these methods have low strength and poor solidity, they cannot withstand much force and tend to be displaced during construction. Especially in softer constructions. It is even harder to use these methods to bridge the rock formations.