Introduction to the construction equipment model of drilling piles
The foundation of drilling piles has the advantages of strong stability, high load capacity, relatively simple equipment, and fast construction efficiency, and is widely used in major geotechnical projects in my country. For different geological conditions, different drilling equipment is required to bring better economic and social benefits.
There are mainly the following types of drilling pile equipment.
1. Inspeal rig
A mechanical machine that uses the impact of the drill bit to the rock layer is a relatively common rhinestone equipment that can adapt to various geological conditions, especially in the pebble layer more adaptability.
Low cost, have a wide range of construction strata adaptability, fast construction rate, and small requirements for the construction site environment;
The work labor intensity is relatively large. The mud cycle needs to be set up with a mud backflow pool. The area is large. The mud generated cannot be directly transported. During the construction process, large vibration and sound will occur, and the environmental impact on the surrounding area will be obvious.
2. Spiral rig (rotary rig)
A spiral blade drilling machine relies on the mechanical of drilling by hydraulic motor output power. It is suitable for the filling layer, clay layer, powder soil layer, sand layer and gravel layer above the groundwater level.
Simple equipment, fast drilling speed, small mechanical vibration, low noise, low cost, no mud pollution, good concrete irrigation quality, etc.
Single pile bearing capacity is lower than the prefabricated piles, and the pile end has virtual land, and the scope of applications is large.
3. Rotary rig
A rotation of a drill rotation device from the power device, so as to drive the drill rod to rotate the drilling mechanical machine, it is applicable to the soil layer such as filling, silt, sticky soil, pink soil, sand soil, etc. There are some difficulty in layer drilling.
The wall protection effect is obvious, the quality of hole formation is higher, and there are no obvious vibration, noise and other problems during the construction process. It has the advantages of simpler operation and low cost.
In complex strata -layer holes, the overall work efficiency is relatively low and economic consumption is large. The water consumption at the construction site is large, and a large amount of mud is required. At the same time, the pore expansion rate cannot be effectively controlled. It is difficult to construct on the surface of pebble stones and rock layers.
4. Subsidal rig
A waterproof motor gear mechanism and drill bit directly connected together, and at the same time do a good job of external sealing treatment. After the drill rod is positioned, the drill is directly sneaked into the bottom of the water. A variety of floors such as layers and weathered shale are especially suitable for soil layers with high groundwater levels.
Low cost, light self -heavy, the foundation of the foundation is small, the drilling does not need to lift diamonds, high efficacy, and high pore accuracy;
The non -homogeneous layers are poorly adaptable, and it is not suitable for drilling in the base rock.
5. A full -set rig
A kind of hug, dangling tube, and pipe pipe with hydraulic driver, sway the tube side into the soil, and cooperate with the overall equipment of the soil into the pores with a hammer -type grip, which is suitable for removing Any soil layer outside the rock layer.
The quality of the piles into piles is high, the discharge of mud without polluting mud, good environmental protection, low noise, and small vibration. With various types of grasping heads, construction can be constructed in various soil layers and rock formations;
The equipment is huge, the construction site demand is large, the entire set of equipment has high investment costs, and the construction cycle is long.
Product Recommendation: sleeve setting machine