What is the primary purpose of a tremie pipe?

The primary purpose of a tremie pipe is to carry grout or other materials to the bottom of a borehole. This specialized pipe is typically used in construction and drilling applications where it is important to place materials such as concrete or grout at the desired depth without premature setting or contamination from the surrounding environment. The tremie method ensures that the material is delivered in a controlled manner, minimizing the risk of segregation or other issues that may arise from conventional pouring techniques.

Additionally, the design of the tremie pipe allows for effective delivery under water or through slurry, making it especially useful in underwater construction or in situations where the borehole isn't dry. By maintaining a constant flow of material through the pipe, the process ensures that the grout or concrete can fill the space accurately and efficiently, which enhances the integrity of the construction work being performed.