“提钻灌浆”道理浅显易懂，执行起来也并无困难，但在行动上又往往被人们所忽视，而这一措施一经采取，在某些情况下往往能立即改被动局面，收事半功倍之效。下面，试举我队近年来几个成功的或有直接效果的处理实例：例1：C_3异常ZK101孔，钻进至孔深720米，渐觉循环泥浆有增无耗，自然变稀，孔内岩粉增多，又未见孔内涌水，继后深部垮塌加剧，被迫停钻。分析：该孔90—150米内有小溶洞，伴有涌沙外溢，经改用泥浆止住。钻孔继续加深，管柱增多，提钻时因液面降，该段地下水及流砂回串孔内；下部400米处有破碎带，前段泥浆未被稀释，提钻中液面降亦小，可维持地层压力平衡，未诱发塌孔，现因外因条件改变，暴露了地层隐患，引起下钻遇阻、垮孔。 The principle of “drilling and grouting” is easy to understand and has no difficulty in implementation. However, it is often neglected by people. Once this measure is taken, the situation may be changed immediately in some cases, effect. In the following, try my team in recent years, several successful or direct effect of the processing examples: Example 1: C_3 anomalies ZK101 hole, drilling depth of 720 meters, gradual circulation of the mud has increased consumption, natural thinning, holes Within the rock powder increased, no seepage hole, followed by deepening collapsed, was forced to stop drilling. Analysis: The hole 90-150 meters within a small cave, accompanied by flood overflow, after the switch to the mud stopped. Drilling continued to deepen, the string increased, due to liquid level drop when drilling, the section of groundwater and stream sand back to the string hole; the lower 400 meters at the broken belt, before the mud was not diluted, pull the liquid drop is also small, Stratum pressure balance can be maintained, did not induce hole collapse, is due to external conditions change, exposing the formation hidden dangers, causing the drill encountered resistance, collapse hole.