高聚物超薄防渗墙施工设备及工艺改进

针对现行高聚物防渗墙施工中成槽能力有限、槽孔垂度不易控制、连续性和密实性较差等不足,对其设备和工艺进行改进,并对改进后设备及工艺的成墙效果进行了检验。结果表明:双轴测柱式电子水平仪的应用实现了锥头板的精准套孔;在原有的三锥头压槽板基础上,加长引导杆及变固定式锥头为一次性活动式锥头,可提高套孔速度和精度,保证搭接孔垂度及连续性;提升-注浆一体化施工工艺避免了槽孔的坍塌或收缩,保证了墙体的均匀性、连续性和密实性。改进后的高聚物防渗墙施工设备及工艺能够保证高聚物防渗墙的垂度及搭接完整性,提高设备工作效率,加快工程施工进度。

Improvement of construction equipment and technology of super-thin cut-off walls with polymer

Aiming at the shortcomings of existing cut-off walls with polymer during construction, including limited trench capacity, difficult verticality, poor continuity and compactness, the improvement for the construction equipment and technology was carried out and the effects were inspected. The results show that the application of the electronic level instrument of biaxial measuring column realizes the accurate hole sleeve of the cone head plate. Lengthening the guide rod and changing the fixed cone head into one-time movable cone head can improve the speed and accuracy of hole insertion and can ensure the verticality and continuity of the overlapping hole. The integrated construction technology of lifting and injection can avoid collapse or shrinkage of the slot hole, and the uniformity, continuity and compactness of the wall can be ensured. The improvement of the construction equipment and the technology of super-thin cut-off walls with polymer can ensure the verticality and lap integrity of the wall, improve the working efficiency of the equipment, accelerate the construction progress.