31 rotary drill: I'm harder than you

"No diamond drill doesn't work for porcelain." In Guangzhou Luogang District a hillside residential construction site, where the geology is granite in the construction are not many, only 31 types of rotary drilling, rotary drilling rig without fear.

According to the person in charge of the project department, the pile diameter of the site works is 1.2 and 2 meters, two kinds, and the pile depth is 28 meters. Because the rock surface is bare on the surface, drilling is going to enter the rock. The granite here is all slightly wind, and the intensity is above 120MP, so the construction difficulty is very high.

Up to now, only 6 sets of 31 large scale rotary drilling rig, including 3 SR360, 1 SR365, 1 SR380, 1 SR420.

Carrying 4 sets of 31 large number of rotary drilling rig into the site, the boss said, this is really a hard row to hoe". And he dare to take this project, by the hands of strong performance, quality stability of the rotary drilling rig and 31 full range of technical support.

"In the beginning, the construction was not smooth." In the early stage of entry, facing the granite of 120MP, Luo boss didn't have the heart. He tried many kinds of "fashionable" rock entry methods, such as DTH hammer and vibrating hammer construction, but with little effect, he completed 1 piles in more than 20 days. "Low efficiency is not said, the construction cost is high".

Later, the engineering construction problem was solved by the engineers of the 31 heavy machine Engineering Research Institute in Beijing. The Institute of engineering and law sent a team of engineering and law support, led by the Dean, and was stationed on the site for more than 10 days. After they arrived at the construction site, on-site construction conditions of geological structure, has done a lot of research, and the adaptive adjustment of the equipment, tools, and ultimately determine the construction with a relatively traditional rotary drilling rig with cone, also to adjust the welding cone angle, and make some other improvements, the project carried out smoothly.

In the field of equipment support, Beijing 31 heavy machine Southern China branch sent professional service engineers to maintain on-site equipment. For equipment parts, 31 has opened up the "green channel" for accessories, and made every effort to deliver the necessary parts to customers in the first time, so as to ensure the smooth construction ahead.

In just 20 days, the equipment of Luo boss completed the construction of 15 piles, the efficiency was 15 times higher than before, and he and the project department were very satisfied.

31 strong rotary drilling and thoughtful service is a powerful guarantee for the efficient construction of the equipment in 31 help, as in the construction, and soon completed.