Solve the settlement problem! XCMG Rectangular Pipe Jacking Machine Opens "Urban Meridians"
March 21, 2023
Rail transit is like urban meridians.，And the Trenchless machinery that runs through all kinds of nerve endings is like“Underground swimming dragon”，Build up strength for urban construction。Recently，At the construction site of Yaoyuan Road Station of Hefei Rail Transit Line 8，XugongXDT46*69 Rectangular pipe jacking machine successfully breaks the ground，In order to get through the meridians and collaterals in the north and south of the city, all the way forward。
Yaoyuan Road Station is the third station of the first phase of Line 8.，1、2、Entrance/Exit 5，Elevated road across Fuyang North Road，No.1 entrance and exit is the rectangular pipe jacking construction section.。The paragraphThe thickness of covering soil is about 5.7m，Length approx. 43.67m，Through 36 holes 10 along the waykVPower duct bank andφ1200 water supply pipe，The minimum clear distance is only 1.8m，It has extremely high requirements for land subsidence control.。
High requirements for settlement control，XugongXDT46*69 ushered in the double test of geological conditions and construction speed.。XugongXDT49×69 Pipe Jacking Machine with Compact Structure，The fuselage is short in length，It meets the construction requirements of this small working well.，The whole adopts an upper and lower assembly structure.，Brin great convenience for equipment transportation and field assembly。
In view of the difficult problem of high requirements for settlement control of the project，XDT46*The rectangular pipe jacking machine is optimized in the grouting and soil improvement channel，UseHigh precision earth pressure sensorReal-time monitoring of pressure changes at multiple parts of the soil bin，Accurately control the balance between the jacking speed and the amount of excavated soil，While ensuring smooth jacking,，And that settlement of the soil lay is reduced，Keep the ground stable。
Broken masonry on the jacking section，Is another in the jacking process of the project.“Obstacles”，For this reason, XCMG has optimized the designLiquid drive screw conveyor。Compared to motor drive，ItsMore than double the torque，At the same time, the shell is reservedManhole access，It is convenient for personnel to remove obstacles that are difficult to remove from the equipment.，SufficientAnd that construction safety is ensure。
Heavy and difficult projects，There must beEquipment with sufficient hard gas，More importantlyHigh quality service guarantee。Talking about the services provided by XCMG Foundation for the project，The project side praised it：“Since equipment mobilization，XCMG Foundation has provided technology for the project construction.、Dual support on services，From assembly、From commissioning to emergency maintenance，Field service personnelWhole process tracking guarantee，Provide efficient support for the efficient progress of the project！”
Implementation of XCMG Pipe Jacking Machine for Sewage Interception and Diversion of Paihe River in Hefei Water Diversion Project from Yangtze River to Huaihe River2.4mDiameter 1187.5mVery long distanceSuccessful penetration，For the first time in China；XugongXDT50*Rectangular Pipe Jacking Machine in Zhengzhou Railway ProjectThe excavated volume of construction efficiency is 40 cubic meters/Hour；In the Diversion Project in Central Yunnan，XCMG pipe jacking machine is inHighest daily advance achieved in long distance hard rock work15mConstruction records……Buried again and again、Breaking through the ground，The reliability and advancement of XCMG pipe jacking machine have been constantly confirmed.！
With the continuous accumulation of run-through distances，XCMG Pipe Jacking Machine Continues to Accelerate the Construction of Urban Rail Transit，Let the city meridians and collaterals be accessible，A burst of vitality！
