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A platform for research: civil engineering, architecture and urbanism
Long spiral drilling machine and construction method of aerated CFG pile
The invention relates to the field of drilling machine equipment, in particular to a long spiral drilling machine and a construction method of an aerated CFG pile. The long spiral drilling machine comprises a drilling rod, wherein the drilling rod comprises a hollow shaft and a spiral blade, and the spiral blade is arranged on the circumferential face of the hollow shaft; the long spiral drilling machine comprises a high-pressure ventilation pipe vertically arranged on the hollow shaft and a high-pressure air producing device capable of conveying high-pressure air into the high-pressure ventilation pipe, wherein the high-pressure air producing device communicates with the upper end of the high-pressure ventilation pipe, and the bottom end of the high-pressure ventilation pipe is arranged at the position close to the bottom end of the hollow shaft. The construction method of the aerated CFG pile comprises the following steps that S1, the ground is processed to be flat; S2, the long spiral drilling machine is moved to a lofting area, and a valve at an air outlet of a high-pressure air storage tank is opened till the drilling rod reaches a certain depth when the drilling rod is screwed into an underground hard stratum; and S3, concrete is pumped into a hole through the drilling rod, and the drilling rod is pulled out at a constant speed. The purpose of reducing the possibility that the drilling rod is locked in the operation process is achieved.
本申请涉及钻机设备领域，尤其是涉及一种长螺旋钻机及加气CFG桩的施工方法。一种长螺旋钻机包括钻杆，钻杆包括空心轴和螺旋叶片，螺旋叶片设置在空心轴的周面上，包括竖直设置在空心轴上的高压通气管以及能够向高压通气管内部输送高压空气的高压制气装置，高压制气装置与高压通气管的上端相连通，高压通气管的底端设置在靠近空心轴底端的位置；加气CFG桩的施工方法包括以下步骤：S1、将地面处理平坦；S2、将长螺旋钻机移动至放样区，当钻杆旋入到地下的坚硬地层中时，打开高压储气罐出气口的阀门，直至钻杆到达一定深度；S3、将混凝土通过钻杆泵入孔内，并匀速拔出钻杆；达到了降低钻杆在运行过程中被抱死的可能性的目的。
Long spiral drilling machine and construction method of aerated CFG pile
The invention relates to the field of drilling machine equipment, in particular to a long spiral drilling machine and a construction method of an aerated CFG pile. The long spiral drilling machine comprises a drilling rod, wherein the drilling rod comprises a hollow shaft and a spiral blade, and the spiral blade is arranged on the circumferential face of the hollow shaft; the long spiral drilling machine comprises a high-pressure ventilation pipe vertically arranged on the hollow shaft and a high-pressure air producing device capable of conveying high-pressure air into the high-pressure ventilation pipe, wherein the high-pressure air producing device communicates with the upper end of the high-pressure ventilation pipe, and the bottom end of the high-pressure ventilation pipe is arranged at the position close to the bottom end of the hollow shaft. The construction method of the aerated CFG pile comprises the following steps that S1, the ground is processed to be flat; S2, the long spiral drilling machine is moved to a lofting area, and a valve at an air outlet of a high-pressure air storage tank is opened till the drilling rod reaches a certain depth when the drilling rod is screwed into an underground hard stratum; and S3, concrete is pumped into a hole through the drilling rod, and the drilling rod is pulled out at a constant speed. The purpose of reducing the possibility that the drilling rod is locked in the operation process is achieved.
本申请涉及钻机设备领域，尤其是涉及一种长螺旋钻机及加气CFG桩的施工方法。一种长螺旋钻机包括钻杆，钻杆包括空心轴和螺旋叶片，螺旋叶片设置在空心轴的周面上，包括竖直设置在空心轴上的高压通气管以及能够向高压通气管内部输送高压空气的高压制气装置，高压制气装置与高压通气管的上端相连通，高压通气管的底端设置在靠近空心轴底端的位置；加气CFG桩的施工方法包括以下步骤：S1、将地面处理平坦；S2、将长螺旋钻机移动至放样区，当钻杆旋入到地下的坚硬地层中时，打开高压储气罐出气口的阀门，直至钻杆到达一定深度；S3、将混凝土通过钻杆泵入孔内，并匀速拔出钻杆；达到了降低钻杆在运行过程中被抱死的可能性的目的。
Long spiral drilling machine and construction method of aerated CFG pile
一种长螺旋钻机及加气CFG桩的施工方法
LIU YONG (author) / WANG XIULI (author) / XING HONGXING (author) / ZHU YIJIANG (author) / FU JIANHUA (author) / ZHANG HAIJUN (author) / HAN YONGLIANG (author)
2021-07-23
Patent
Electronic Resource
Chinese
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