Study, Publicize and Implement the Spirit of the 20th National Congress of the CPC

The report of the 20th National Congress of the Communist Party of China，Adhering to the Core Position of Innovation in the Overall Modernization Construction of Our Country。

In order to solve the problem that the traditional rectangular anti-slide pile needs to enter the pile hole manually，The construction efficiency is low，High security risks and other issues.，Railway Construction Heavy Industry and Sichuan Intelligent Construction Technology Co., Ltd.、Sichuan Yanjiang Expressway Co., Ltd. builds rectangular pile pore-forming equipment，At present, it has been on the expressway along the Yangtze River in Sichuan.（It is called Yanjiang Expressway for short.）Jinyang construction site、Successful Application in Huili Construction Site。

Current period《“Special Forces on the move.”Of⒀：Mechanical pore-forming equipment for rectangular pilot，Anti-slide pile pore-forming tool》Let's focus on the expressway along the Yangtze River in Sichuan.，Pay attention to the story of rectangular pile pore-forming tool service project site of China Railway Construction Heavy Industry Co., Ltd.。

JXZ3020-DRectangular pile pore-forming equipment

Drilling in hard rock formation at Jinyang construction site

The expressway along the Yangtze River is the main artery of economic development in Liangshan Yi Autonomous Prefecture.，The whole project is faced with complex geology.、The formation is broken、The hardness of the rock formation is high、The mountain is steep、It is prone to landslides and many other problems.，A large number of rectangular anti-slide piles need to be constructed in many bid sections.。The rectangular pile pore-forming equipment of China Railway Construction Heavy Industry Co., Ltd. has successfully achieved drilling and pore-forming in the stratum with compressive strength above 110 MPa at Jinyang construction site of Bid 6 of Jinning Section of Riverside Expressway.，Construction efficiency 0 per hour.1-0.6 meters，Is the traditional manual construction of 2-8 times，There is no need to enter the pile hole manually.，Safe construction is guaranteed！

← Jinyang construction site

↓ Hole forming effect

Core sample

Fficient pore-forming in soft rock stratum of Huili construction sit

Huili Construction Site of Bid Section 19 of Ningpan Section of Expressway along the Yangtze River，Site geology is soft rock，Strength approx. 26-30 MPa，The drilling speed of rectangular pile drilling equipment in this stratum is up to 0..6-0.7 meters，Construction efficiency is 8% of traditional manual construction-12 times。Owner of Yanjiang Expressway、Design、Expert of construction unit、The leader observed on the spot.、Communication，Rock-entering capacity of equipment、The efficiency of hole formation has won unanimous praise from leading experts.。

Huili construction site

Experts observe and exchange

Hole guiding effect

Hole forming effect

The maximum hole-forming depth of rectangular pile hole-forming equipment of Railway Construction Heavy Industry is 35 meters.，Hole size: 3m×2 meters（±3%），Designed maximum rock breaking hardness of 120 MPa。Lailuo triangular square hole forming principle is adopted，Equipped with support shoe to support shock absorption、Deviation rectification by inclinometer、Drill bit cooling、Cable bundling follow-up、Dust removal and other systems；Through the modular combination of different numbers of square hole drill bits and different frame structures，Can realize various rectangular hole with different cross section；During construction, the rotary drilling rig shall be used to guide the hole.，Rectangular pile mechanical pore-forming equipment is connected for rectangular pore-forming after pore-guiding，After that, the rotary drilling and slag-cleaning drill bit is replaced for slagging.，A complete set of new mechanical construction methods for rectangular piles has been formed.、New equipment。

The complete set of construction method equipment for rectangular pile mechanical construction，Has low construction safety risk、Strong rock penetration capability、And that construction efficiency is high、And that for effect is good、High pore-forming precision、The construction dust is small、And that construction vibration is small、Simple operation and other advantages，It can meet the requirements of rectangular pile pore-forming construction under different geological conditions.，Achieve security、Efficient、Mechanization、Construction with fewer people，Help the national highway、Steady progress has been made in the construction of railways and other projects.！