April 19，The three-day 26th China International Trenchless Technology Symposium and Exhibition officially opened in Suzhou International Expo Center.。National Trenchless high-end brand、Innovative products and technologies、Trenchless Industry Leading Enterprises Gather at the Exhibition。

▲Figure 1：Site of the 26th China International Trenchless Technology Symposium and Exhibition

“Work for a hundred years，Made with ingenuity！”Shanggong Machinery CarrierPJRSeries micro pipe jacking drilling rig、PITSeries of Press-in Shaft Pipe Rubbing Machines Appeared at the 26th China International Trenchless Technology Seminar and Exhibition，Once again, it is shown to the global users.“Leading technology、Aims to create value for customers”The pursuit of determination，Demonstrates the century-old commitment of Shanggong“The overall solution provider and leader of underground foundation construction”Mission and responsibility。

▲Figure 2：Exhibition area of Shanggong MachinerySince it was introduced to the market，Shanggong Machinery CarrierPJRSeries micro pipe jacking drilling rig、PITSeries press-in shaft pipe rubbing machine relies on controllability、Reliability、Security、Comprehensive competitive advantages such as high efficiency will soon stand out in the market.，It has won the general favor of users everywhere.。At this Trenchless exhibition，PJRSeries、PITSeries products, as star products, once again become the focus of the exhibition.，Visit Shanggong booth for product details，There is an endless stream of users exchanging and discussing technical solutions.，The atmosphere was warm and harmonious.。

▲Figure 3-Figure 6：In-depth conversation with customers in Shanggong Machinery Exhibition Area

 

“With the continuous improvement of engineering construction requirements,，The technology is backward、Inefficient manual excavation is being phased out，Trenchless technology has been first popularized in large and medium-sized cities.，It will further open up more market space in the future.。Future，Shanggong Machinery will, as always, insist on going deep into the market.，Close fit to customer needs，Continuous technological innovation，Take advantage of the prosperity of the industry，Seek common development with everyone！ 

PJRSeries micro pipe jacking drilling rig：

Miniature pipe jacking in water supply and drainage pipelines、A branch of a gas pipe、Electricity、It is widely used in communication and other pipelines.。The pipe jacking construction method is to install a pipe jacking rig in the working well first.，The spiral drill rod is firstly drilled into the soil along the central axis of the pipeline to determine the direction of the pipeline,，Reaming to the designed pipe diameter with a spiral reaming bit，The pipe to be laid follows the auger bit，Under the action of the thrust of the main oil cylinder, the tool pipe digs into the soil layer，The excavated soil is discharged by a soil pump or a screw conveyor or in the form of slurry through a pipeline by a slurry pump.，After pushing one section of pipeline，Main Jack Retracted，Hoist another section of pipe，Keep jacking。And so on，Until the pipeline is laid。After the pipeline is laid，The tool pipe is hoisted to the surface from the receiving well。

 

Performance characteristics：■ Small construction area、Do not destroy the existing road，The impact on traffic is small；■ The construction noise is low，Less sludge discharge，Little impact on the environment，High degree of safe construction；■ And that construction precision is high，Advanced technology，The construction speed is fast，Low comprehensive construction cost。

 

Host parameters

 

Hydraulic cabinet parameters

 

 

▲PJRSeries micro pipe jacking drilling rig

▲Beijing project case

▲Shanghai Jiading District Project Case

▲Shanghai Baoshan District Project Case

 

PITSeries press-in shaft pipe rubbing machine：

PITShaking press-in shaft pipe rubbing machine is used in the construction method，Through a special outer sleeve（Steel cylinder）The way of pressing in while shaking to the ground，By excavating the section in the retaining steel casing，To build the foundation pit，There is no vibration、Low noise、Energy-saving and environment-friendly construction method，Compared with other steel sheet pile support engineering，More prominent security、Economy、Excellent process with high efficiency。

 

 PITSeries press-in shaft pipe rubbing machine is introduced by Shanggong Machinery Co., Ltd、Digestion、On the basis of absorbing foreign advanced technology, a new type of casing drilling rig is independently developed, which integrates mechanical, electrical and hydraulic control.。This machine has comprehensive functions，Smart and light, covering the functions of various models at home and abroad，Multiple speed and torque control、Automatic vertical adjustment、Tool bit stress control、Remote wire control and other features，The operation is convenient，No noise、Low vibration、Superior and reliable performance。

Scope of application：
■ Subway foundation、Bite pile for enclosure of deep foundation pit、Pile-pulling and obstacle-removing pile for urban reconstruction，Railway、Port、Road and bridge、Rivers、Lake、High-rise building、Bored cast-in-place pile for hydropower and water conservancy construction，Bored piles for special purposes；■ Full casing is used，Construction can also be carried out when approaching existing buildings.，And is particularly suitable for operation in urban area.。

 

Performance characteristics：The construction is safe and efficient■ Personnel do not need to work in the foundation pit，All operations take place on the ground.，Effectively ensure personnel safety；The steel casing can effectively retain soil and protect the wall during construction.，Effectively prevent ground collapse、Hidden danger of foundation subsidence；■ The equipment is smart and light, and it can work normally even in the narrow space of the road.，Even on foundations that lack self-reliance.，And auxiliary process such as material injection and that like are not needed.，Suitable for construction on different types of foundation。No vibration 、Low noisePress in and pull out the steel casing by operating the hydraulic cylinder，No vibration can be achieved.、Low noise。Superior operability ensures construction accuracy■ Intelligent operating system，Help the construction personnel to quickly master the equipment operation mode；■ The equipment can ensure the verticality of steel casing through advanced control system.，Stable press-in force shall be provided for different formation，Ensure high precision construction。

Performance parameters

 

 

▲PITSeries press-in shaft pipe rubbing machine

 

▲Zhejiang Jiaxing Project Case▲Zhejiang Jiaxing Project Case