Autumn September，At the construction site of Shaanxi Linfa Expressway，OneWuxin single crank drilling jumboBlasting hole operation is being carried out in the tunnel.。

Five new single-arm drilling jumbo can be applied toBench method and full face bore holeHomework、Inverted arch blast holeOperation andAdvance small catheter、Anchor rod operation。Since the listing，Because of itSmall size、Fully functional、Be flexibleBe favored by customers。

01

DomesticThe first crank arm boomStructure，Meet the construction of bench method，Pecially for two steps、Three-step construction，Can meet the requirements of upper, middle and lower bench operation。

02

The operation range is large，One-time positioning，High-speed railway or high-speed full-section bolt hole can be completed without moving vehicles、Advance small conduit hole construction。

03

The whole vehicle is short in length.，Be flexible，Convenient access to trestles, etc.。

04

Remote control operation，Easy to learn，You can get started quickly，The drilling conditions can be observed closely.。

Linfa ExpresswayIt starts from Chengmingyao Village, Jiuchenggong Town, Linyou County in the north and connects with Xunfeng Expressway.，South to Anban Village, Chengguan Town, Fufeng County, to connect with Fajiang Expressway，Total length 46.225 kilometers，The design speed is 100 kilometers per hour.。The tunnel where the five new single-arm rock drilling jumbos are located isThe only extra-long tunnel，Key and difficult control works of the whole line。

The tunnel is designed toCurvilinear split type，HaveThe stability of surrounding rock is poor、High security risk、High requirements for environmental protection and water and soil conservationAnd other difficulties。In view of the broken state of tunnel surrounding rock，China Railway No.20 Engineering Group Co., Ltd. purchased a five-new single-crank drilling jumbo to assist construction，At present, the drilling depth of equipment is 4 meters.，It only takes 1 minute and 40 seconds to dig a single hole.，Compared with similar equipment, the construction efficiency is about 1 minute faster.。

▲On-site construction of equipment

In the Shenzhen-Shantou Special Cooperation Zone，Another oneFiveNew orderCrank arm drill jumboPositive boostTonggang Avenue ProjectConstruction。

The project of Tonggang Avenue is built by Shenzhen Expressway, a municipal state-owned enterprise.，Located on the west side of Shenzhen-Shantou Eco-environmental Science and Technology Industrial Park，It starts from the Red Sea Avenue，The terminal is connected to Shenshan Avenue.，The total length is about 10.Six kilometers，Constructed according to the standard of two-way 8 lanes，Design speed 60 km，The total investment is about 3.7 billion yuan.。

At present, Wuxin single crank drilling jumbo is mainly used for slope protection blasthole construction and anchor construction.。The equipment is small in size，The operation is convenient，The boom is flexible，It can meet the requirements of multi-process tunnel construction.，It takes only 1 minute and 30 seconds for a single hole to dig 4 meters.。

 

▲On-site construction of equipment 

The recognition of customers is a great driving force for the continuous innovation of Wuxin.，Five New Will Continue to Work Hard in the Future，To create greater value for customers with high-quality products and professional services！