Show off your skills! The Sany rotary excavator group will fight in Hangzhou, showing the strength of the pilers

Recently, a number of Sany brand new China IVRotary drilling rigsAppeared in Hangzhou Xiaoshan - G104 National Highway Hangzhou Yaqian Section Viaduct Construction Project, escorting the pile foundation construction.

Project Name:104 National Highway Hangzhou Yaqian Section Viaduct

Construction Overview:The length of this section is 3.9 kilometers, of which the viaduct is 3.8 kilometers long. Tunnel structure through Hangzhou Convention and Exhibition Center ~ Gangcheng Avenue Station. The viaduct is above and the at-grade road section below.

Drilling Information:The pile diameter is divided into 2.2 meters, 2 meters, and 1.8 meters, and the depth is about 80 meters

Stratigraphic characteristics:Moderately weathered sandstone, gravel layer, large caliber, high hardness, poor development of fractures

Construction Method:Drilling in three stages, first at 1.2 meters, then 1.6 meters of reaming, 2.2 meters or 2 meters into holes.

Construction Machinery:SR505、SR435、SR405。 There is a high-voltage line at the construction site, and SR405 is selected for the construction.

The project is mostly weathered strata, with high hardness, large hole deep piles, and difficult construction, which puts forward higher requirements for the construction of rotary drilling rigs. To this end, the contractor visited various construction sites many times, inspected the construction performance of various brands of rotary drilling rigs, listened to the suggestions of the on-site boss and operator, and finally decided to purchase four new Sany National Four rotary drilling rigs, namely one SR505-S, two SR435-S and one SR405-S. The performance of the new equipment after delivery also lives up to the customer's recognition and trust in Sany.

As the main models, Sany SR505-S and SR435-S rotary drilling rigs are large-scale rotary drilling rigs for the construction of large pile foundations in hard strata such as large-scale buildings, high-speed railways and highways, with strong hard rock drilling capacity and large construction capacity.

The person in charge of the project will give a thumbs up every time he sees these "big guys" of Sany. "Sany's equipment really lives up to expectations! It is worthy of the strength of our national brand! ”