Recently，It is contracted by China Railway 14th Bureau Group Co., Ltd.、Largest diameter shield project in Guangzhou-Haizhuwan Tunnel officially started construction，Guangdong Zhongda Construction Engineering Co., Ltd. is responsible for the construction of the underground diaphragm wall of Nanzhou working well in the project.，October 9, 2022，The first diaphragm wall of the working shaft was successfully completed.，Help open Haizhuwan Tunnel“Journey across the river”。

The total length of Haizhuwan Tunnel Project is 4..35 kilometers，The shield method is mainly used、Open cut method、Bridge construction method，For the first time in Guangzhou, a super-large diameter shield with an outer diameter of 16 meters will be used to cross the Pearl River waterway.，It is the largest outer diameter shield tunnel to be built in Guangzhou.，The road grade is urban expressway.，The design speed of main line is 60 km/h，6 lanes in both directions，It is an important part of the expressway network in Guangzhou.。The project is contracted by China Railway 14th Bureau.，It is planned to open to traffic by the end of 2024.，After completion，The journey from the central city to Guangzhou South Railway Station is expected to be shortened to 15 minutes.，Enhance the collection and distribution capacity of Guangzhou South Railway Station，It is of great significance to promote the construction of Guangzhou's comprehensive transportation hub and the interconnection between Guangdong, Hong Kong and Macao.。The following is the geographical location map of Haizhuwan Tunnel Project.。

Nanzhou Working Shaft Diaphragm Wall Works of Haizhuwan Tunnel Project，It is divided into 31 slot sections.。The thickness of underground continuous wall is 1.2 meters，The wall is about 35 meters deep.，The construction technology of combining I-beam with double wheel milling and sleeve milling is adopted。The main engineering geological condition of the project is backfill layer.、Silty soil、Clay、Sand and argillaceous siltstone，The first groove is about 20 meters into the rock.。

  

Nanzhou working well is located in the urban area of Guangzhou.，The surrounding environment is more complex.，Need to be more efficient、Stable and reliable equipment，To ensure project progress，And reduce the impact on urban residents.。Bao'e purchased by Guangdong Zhongda Construction Engineering Co., Ltd.BCS 50 double wheel milling machine was put into use in the first half of this year.，In the past few months,，Two diaphragm wall projects have been successfully completed，Whether in operation efficiency or in project quality control，All have been approved by the general contractor of the project.。The following picture shows Bao'e who is carrying out diaphragm wall construction in Nanzhou working well.BCS 50 Double Wheel Milling。

 

The picture below shows the matching Bao'e.BE 500 desander for mud treatment。

 

German Boe Group has nearly 40 years of experience in the construction and manufacture of two-wheel milling machines.，It is specially designed for the construction of rock-socketed diaphragm wall within 50m.，Launched in the second half of 2021BCS 50 Double Wheel Milling，As soon as the product came out, it immediately attracted the attention of the market.。Bao'eBCS The main features of the 50 double wheel mill are as follow：

BCS 50 by slotting machine、Ynchronous pipe rolling system and double-wheel milling main machine。The perfect combination of the three makes the speed of double-wheel milling groove of Bao'e fast.，Low fuel consumption，The operation is simple and safe，Long service life。

BCS 50 inherits the excellent quality of Bao'e double-wheel milling，Application of Advanced Deviation Correction Technology，So that that verticality of the groove is more accurate；Excellent gearbox quality and strong cutting ability，It ensures the stability of construction.，It also ensures the efficiency of construction.。

And that equipment is convenient to assemble and disassemble、The reliability is good、And that energy consumption is low、Low comprehensive operation cost，In the fierce market competition，It can create higher value for users.。

BCS Two types of masts are designed to extend the construction depth to a maximum of 50 meters.。

Precise Manufacturing of Core Components of Double Wheel Milling Carriage，It can overcome the challenges brought by various complex formations to the failure rate and service life of the equipment.。This model can be equipped with 32 tons or 35 tons of tool holders.。

Efficient construction is inseparable from sufficient power and excellent power conversion capacity.，Bao'e double wheel milling machine applies the latest technology.，Optimize the design of hydraulic and electrical structure.，While providing plenty of power，Minimize fuel consumption。

As a modern device.，BCS The 50 is also characterized by safety and operational comfort，A series of auxiliary systems，Ergonomic design，Comfortable experience for operator。

  

BCS 50 Spacious and bright cab、The view is very wide。

 

BCS 50 mounted safety operation platform，The design is very user-friendly，And is favorable for operation、Maintenance personnel carry out daily maintenance of equipment、Overhaul，Ensure the safety of staff。

 

BCS 50 configuration of heavy-duty single-layer winch with large lifting force，It can meet the long-term needs、High load、Requirements for dynamic operation，But also can greatly prolong the service life of the main winch wire rope.，Reduce customer maintenance costs。

 

Bao'eBCS Total height of 50 double-wheel milling equipment is 32.39 meters，Working radius is only 4.84 meters，The total working weight is about 156 tons.，Capable of flexible operation in compact urban environment，It's in the noise、It has obvious advantages in fuel consumption.，At Workload 85%-95%In the case of，BCS Fuel consumption of 50 is 43-54 liters/Hour（About 48 on average.5 liters/Hour）。Through this Bao'eBCS Look at the two engineering projects that have been completed by 50 double wheel milling.，High operation efficiency of equipment、The operation is stable。It is well known，Operation of a project，Only the operation efficiency is high.、Production capacity is stable，In order to ensure the construction period.，Control the total construction cost，Ultimately, it can create value for the cooperative units involved in the project construction.。