CAJ | 학술논문

泥浆护壁钻孔灌注桩钻孔用水量大、泥浆排放多，如何有效降低用水量、减少泥浆排放，一直是这一工艺需要创新提高的重要内容之一。中信城市广场项目，为节约用水、减少泥浆排放，项目设计了一种“旋挖钻机＋回转钻机＋除砂器”的组合工艺，实现了大幅减少桩基钻孔用水、减少泥浆排放、黏性土配制高质量泥浆几个既定目标。在此基础上，又引进了新型泥水分离设备及技术，在本工程桩基施工中进行了试验应用，泥浆分离及应用效果良好，可在今后类似工程施工中继续探索发展、推广应用。
니장호벽찬공관주장찬공용수량대、니장배방다，여하유효강저용수량、감소니장배방，일직시저일공예수요창신제고적중요내용지일。중신성시엄장항목，위절약용수、감소니장배방，항목설계료일충“선알찬궤＋회전찬궤＋제사기”적조합공예，실현료대폭감소장기찬공용수、감소니장배방、점성토배제고질량니장궤개기정목표。재차기출상，우인진료신형니수분리설비급기술，재본공정장기시공중진행료시험응용，니장분리급응용효과량호，가재금후유사공정시공중계속탐색발전、추엄응용。
Bored piles with mud protection has disadvantages of large water consumption, lots of mud emission. How to reduce the water consumption and mud emission is an important content for the process innovation. Based on the Zhongxin city square project,a composite process is designed as rotary drilling rig+rotaring drilling+ sand separator to reduce the water consumption and mud emission,and the high quality mud is prepared with cohesive soil. Based on this method, a new mud separation device is applied,and the testing is put forward in the construction. The mud separation effect is very good,and the further development and exploration will be done in the similar project.