在天水酒店晚上怎么叫服务

 banner
News Center

High pressure water jet assisted piling equipment

Time: August 29, 2020 15:20 source: unknown author: admin

In order to make the foundation of the building firm, the foundation should be explored at the beginning of the construction. If the geological exploration ground needs to bear a lot of pressure, it is necessary to ensure that the ground has enough strength to resist the pressure, which requires piling.
At present, the common pile body materials are reinforced concrete pile and steel pile. Due to its large bearing capacity, steel piles are easy to be lifted, transported, driven and connected in key projects.
The common pile driving method of Larsen steel plate pile driving is water jetting pile driving method, which is an auxiliary method of hammering method and vibration method.
The high-pressure water jetting pile driving method is to use the water jetting pipe installed on the side of the pile or inside the hollow pile to wash the soil under and around the pile tip with high-pressure water, so as to reduce the friction between the pile body and the soil layer and the resistance when sinking, so that the pile will sink into the soil under the action of self weight or hammer. Generally, when the pile tip sinks to about 1-1.5m away from the design elevation, water injection is stopped. It is suitable for sandy soil, gravel or other hard soil layers, and is very effective for the construction of heavy piles.

 
  
High pressure water jet assisted piling equipment
High pressure water jet assisted pile driving cleaning machine Water source and water pipeline.
Key points of construction
1. When lifting and inserting the pile, install the high-pressure water delivery hose to avoid breaking and falling off of the hose. After the foundation pile is stable, press on the pile cap pile hammer, and use small water pressure to make the pile sink by its own weight.
2. It is not easy to sink too fast during the initial pile sinking, so as to avoid blocking the nozzle of water jet pipe.
3. When the pile is driven to 8-10m, the water pressure can be increased gradually. When the pile is driven to a certain distance of more than 2m from the design elevation, the water jet shall be stopped, and the pile shall be sunk to the design elevation by hammering or vibration.
Equipment configuration
High pressure pump, diesel engine, high pressure hose, nozzle
Equipment advantages
1. High pressure pump head imported from Germany, stainless steel nickel plated alloy plunger, forced water cooling and cooling, splash lubrication and forced lubrication are adopted at the power end. The transmission is stable and reliable, and the service life of the equipment is as long as 10 years.
2. Drive the imported Weichai diesel engine with stable performance and quality guarantee.
3. The original imported pressure regulating valve and three-stage filter are used to filter the impurities in the water.
4. Rich in configuration, it can be used for piling and water injection, dredge the pipeline and clean the mechanical equipment.
5. The equipment is easy to operate and the pressure can be adjusted within the rated pressure range.
Equipment reference parameters
Model: gyb-2 flow rate: 135L / min pressure: 210bar diesel power: 66kw
Model: gyb-2 flow rate: 170L / min pressure: 240bar diesel power: 84kw
  With the application of pile driver in construction, bridge and other fields more and more widely, and the working conditions of pile driver are bad, the pile depth requirements are high, and the traditional pile driving because of the geological conditions, especially in the area with high geological hardness, the wear of drill bit is very serious, and then the problems such as cost increase, delay of construction period, energy waste and so on are produced Questions.