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强夯机施工前需要注意的事项

网址:http://www.sddhfjx.cn/   发布日期:2022-04-15 关注次数:0
强夯机在作业情况时,起重臂仰角应置于65°,梯形门架支腿不得前后错位,门架支腿在未支稳垫实前,不得提锤。门架上部应向车身歪斜5°左右,坚持门架和起重臂成三角形状。
During the operation of the dynamic compaction machine, the elevation angle of the jib shall be set at 65 °, and the trapezoidal portal frame legs shall not be staggered back and forth. The portal frame legs shall not lift the hammer before they are firmly supported and padded. The upper part of the gantry shall be inclined about 5 ° to the vehicle body, and the gantry and jib shall be in a triangular shape.
转化夯位后,应从头检查门架支腿,供认安靖牢靠,然后再将锤前进100~300㎜,检查整机的稳定性,供认牢靠后,方可作业。当强夯机夯锤留有相应的通气孔在作业中呈现阻塞现象时,应随时拾掇。但阻挠在锤下进行拾掇。
After the tamping position is changed, the outrigger of the gantry shall be checked from the beginning to admit that it is safe and reliable, and then the hammer shall be advanced by 100 ~ 300 mm to check the stability of the whole machine. The operation can be carried out only after the confirmation is firm. When the corresponding vent hole is reserved for the rammer of the dynamic rammer, which is blocked during operation, it shall be cleaned up at any time. But obstruct the pick-up under the hammer.
当夯坑内有积水或因粘土发生的锤底吸附力加大时,应选用方法清扫,不得强行提锤。拼装门架拆门架时应把吊杆和门架放倒在地面上拼装和拆开,并检查各个联接部位螺栓、钢丝绳磨损情况。钢丝绳按规矩要求应及时替换。
When there is ponding in the tamping pit or the adsorption force of the hammer bottom due to clay increases, the method shall be selected for cleaning, and the hammer shall not be lifted by force. Assemble and disassemble the gantry. When disassembling the gantry, put the suspender and gantry on the ground for assembly and disassembly, and check the wear of bolts and steel wire ropes at each connecting part. The steel wire rope shall be replaced in time according to the requirements of the rules.
1、强夯机地基土的压缩性表现在建筑物的沉降和差异沉降大;
1. The compressibility of foundation soil of dynamic compactor is reflected in the large settlement and differential settlement of buildings;
2、由于有填土或建筑物荷载,使地基产生固结沉降;
2. Consolidation settlement of foundation due to filling or building load;
3、作用于建筑物基础的负摩擦力引起建筑物的沉降;
3. The negative friction acting on the building foundation causes the settlement of the building;
4、大范围地基的沉降和不均匀沉降;
4. Settlement and uneven settlement of large-scale foundation;
5、基坑开挖引起邻近地面沉降;
5. Adjacent ground settlement caused by foundation pit excavation;
由于降水地基产生固结沉降。强夯机地基的压缩性反映在地基土的压缩模量指标的大小。因此,需要采取措施以提高地基土的压缩模量,借以减少地基的沉降或不均匀沉降。
Due to precipitation, the foundation has consolidation settlement. The compressibility of dynamic rammer foundation is reflected in the compressibility modulus index of foundation soil. Therefore, measures need to be taken to improve the compression modulus of foundation soil, so as to reduce the settlement or uneven settlement of foundation.
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