How much is Zhaoqing cement pile
Principle of pipeline well crossing method: when the cement pipeline meets the crossing of existing pipelines or rainwater and sewage pipes during burial, the pipeline well crossing method is adopted, which can reduce the buried depth of the pipeline and is not easy to block. An inspection well shall be set at the intersection of pipelines to let another pipeline pass through the well. The key is to ensure that the water flowing area in the well (the area of the shadow part in the figure) is greater than or equal to the sectional area of the pipeline to be passed through. The size of the water flowing area in the well can be controlled by the size of the pipe passing inspection well. The principle of pipe passing is small pipe passing through large pipe, and the current pipeline passing through the planned pipeline.
How much is Zhaoqing cement pile
Salt: When the concrete contacts with water with many soluble salt compounds, these salt compounds will seep into the concrete, and the salt will be continuously concentrated in the concrete and become crystalline, and the volume will often become larger during crystallization. Therefore, it will lead to cracking and damage of concrete materials, which will be corroded by sulfate. When cement pipe plants use concrete, the common form of chemical corrosion is sulfate corrosion, and sulfate reacts with vanadite in cement to produce sulphoaluminate. At the same time, it will increase, which will crack the concrete material.
How much is Zhaoqing cement pile
Before the cement pipe is laid in the ground, professionals should check whether the cement pipe is in good condition and whether there are cracks. Small cracks can be repaired on the spot. If large cracks affect the construction safety, return to the factory and replace the qualified cement pipe. The foundation for pipeline laying must be strictly controlled. The cement pipe manufacturer shall be responsible for the construction and the quality department shall supervise the construction. The problems must be checked layer by layer. The problems shall not be buried underground, otherwise, the quality will directly affect the later construction, and further maintenance will consume more human and material resources. When laying the pipeline, the manufacturer's construction team shall strictly follow the construction scheme, and shall not change the construction scheme or cut corners without authorization, otherwise the hidden dangers of engineering quality left after laying will be seriously affected.
How much is Zhaoqing cement pile
The shape of square pile is easier to develop a non welded quick connector, which can truly achieve all-weather construction, and construction is faster, which can avoid cracking of welded pile head in high groundwater level. 1) Positioning, centering and leveling of the pile driver. After the mixing pile position is placed, move the mixing pile driver to the designated pile position, centering and leveling (leveling with a level). 2) Adjust the verticality of the guide frame, and use a theodolite or plumb bob to control the verticality of the guide frame in both directions. According to the design and specification requirements, the verticality is less than 1.0% of the pile length. 3) The slurry is premixed in advance. While the deep mixer is premixing and sinking, the cement slurry is mixed in the background and put into the aggregate hopper before grouting. The cement grade 425 # ordinary silicate cement is used to mix the slurry, the water cement ratio is controlled in the range of 0.45~0.50, and the cement consumption per meter of deep mixing pile is not less than 50Kg according to the design requirements.
How much is Zhaoqing cement pile
Bored cast-in-place pile has strong vitality because of its high bearing capacity and adaptability to complex geology. However, this pile type needs to deal with the mud pumped out during construction, which causes serious environmental pollution. It has been less used in urban construction at home and abroad, and its production cost is quite high, so it is relatively less used in general industrial and civil buildings. The advantages and disadvantages of precast concrete square piles have been described, which will not be repeated, but it is worth mentioning that its construction damage rate is very low, which is also one of the starting points for our development and production of prestressed hollow square piles; At the same time, because it is solid and has a large dead weight, cracks often appear on the pile body during construction, resulting in poor durability of the pile
How much is Zhaoqing cement pile
After the pipeline is laid, the project acceptor will send professionals to carry out re acceptance and testing. If problems occur, they will be repaired in time to eliminate the quality problems of later works. After the construction of Jiaxing cement pipe, the unreasonable design, manufacture, use and maintenance of the cement pipe may cause the natural gas leakage of the pipe, which will lead to an explosion event that will pose a huge threat to people's lives. Therefore, the defect detection of the cement pipe must be carried out at all times. The cement pipe manufacturer will introduce the defects that are easy to occur in the cement pipe, So as to suit the remedy to the case and eliminate potential safety hazards.
