Recently，Dalian Donglian Road Maintenance Project Completed，Resume traffic ahead of schedule，It has played a positive role in alleviating local traffic pressure.。The project starts from the north end of Lianhe Road.，The terminal point is near Dalian North Station, North China Road.，11310 meters in length，Including Zhonghua West Road Interchange，Songjiang Road、Shugang Road、Xi'an Road、Chunliu and other ramps，It is an important elevated expressway in the north-south direction of Dalian.。

The overhaul of Donglian Road，It is also the largest single road and bridge in Dalian in recent years.。It is an important elevated expressway in the north-south entrance and exit of Dalian.，The traffic flow of Donglian Road is relatively large.，Ensure the construction progress on the premise of ensuring the construction quality，Reducing the impact on urban traffic has become an important challenge for the construction side.。According to media reports，Dalian Municipal Facilities Construction Co., Ltd. Donglian Road Maintenance Project Manager Introduction，Closed construction from May 9，Milling and planing all the original asphalt pavement and then paving a modified asphalt surface layer;，After 12 days of intense work.，Complete the whole section 27.60000 square meters of asphalt concrete paving。

Construction site of Donglian Road

 

Medium-sized milling machine and large and small milling machine，More efficient construction organization

Wittgen China，Zan 12

As the first process of road maintenance，Pavement milling is particularly important，To ensure subsequent paving、Smooth development of compaction and other work，In the early stage of milling，The project side has invested in the joint operation of several Wittgen 2-meter large milling machines and one half-meter small milling machine。And Wittgen W 155 CFi Addition of medium milling machine，Make the field fleet configuration more perfect，More smooth and efficient construction organization。

Application of Wirtgen medium mil machine and large milling machine in construction of Donglian road

Wittgen W 155 CFi Equipped with 294 kW A powerful engine，1.5 m Milling drum，Up to 330 mm The milling depth of，Make the medium-sized milling machine enough to meet the production requirements of rapid maintenance of municipal roads。Compared with large milling machine，More compact shape and lighter body weight（Operating weight：20.9 tons），Under complex and space-limited working conditions，Uch as elevated ramps，Height-limited road section，Side road edge milling and other scenes，It is safer and more convenient than the large milling machine.。

Wittgen W 155 CFi Flexible work at the ramp

Especially at the beginning of the design.，Wittgen medium milling machine takes into account the working conditions of municipal road maintenance.，There are many details and highlights.。For example，The medium milling machine is designed with a mid-mounted milling drum，The milling drum is externally arranged on the right side machine body 10 cm, AndCeiling with vertical lift，The function of traversing left and right，Can be effectively avoid as street tree、Disturbance of obstacles such as arc soundproof wall to construction，Therefore, the welt milling is safer and more convenient.。

Adjacent sound insulation wall welt construction

Hydraulically foldable front conveyor belt，Feeding height up to 4.8 m, Left and right swing angle up to 120°，Easily fits all types of material trucks，Deal with various complex construction conditions。

Wasp-waisted fuselage design，It provides a good control vision for the operator.，It is easy to observe the edge condition of the walking track and the milling drum。In addition, the display screen is located right in front of the operator's field of vision.Dual-camera image monitor system，For the operator，When dealing with the relatively complex working conditions of municipal road maintenance，And that construction safety is further increase.。

The Wirtgen medium milling machine is designed with the concept of one-man operation.，The latest intelligent fuselage attitude control system is applied.-PTS And four limb floating technique，The posture of the machine body can be set and memorized according to the application scenario of the actual milling operation，For example, the upper and lower approach bridges of urban viaduct、Sections with frequent vertical and horizontal slope changes such as sharp bends，The machine can automatically adjust the outrigger height according to the preset body attitude.，No need for human adjustment and intervention，The working stability of the machine and the convenience of loading and unloading the milling materials are better ensured.，The operation process of the machine is simplified, and the safety of machine operation is improved.，Greatly reduce the operating costs of users。

In addition，Wirtgen medium milling machine W 155 CFi Large milling machine for on-site construction W 215 also equipped with LEVEL PRO PLUS Millimeter-level automatic leveling system，And realize high planeness of that milling surface.，It has laid a good foundation for the subsequent paving operation.。

“Foma”Combine and join hands，High efficiency construction shows strength

 

It is reported that，From entering the construction site to the completion of the paving of the main surface of the whole bridge，Just 12 days，Complete the entire road section 27.60000 square meters of work，Praised by the media as construction“Dalian speed”。

During construction，More than 70 large-scale equipment and more than 300 workers are guaranteed to work on site every day.，Set up multiple working faces at the same time through reasonable layout，Additional personnel、Equipment 24-hour shift，In careful construction organization，With the efficient cooperation of all links and the hard work of the builders,，Finally, the traffic was opened earlier than planned.。At the hot construction site.，Paver is the core equipment to determine the construction schedule.，VÖGELE Vogler and the Compacted HAMM Hummer has become a bright presence.，Demonstrated excellent collaborative construction capability。

Released in Dalian，Praise 299

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Wei has something to say

With W 155 CFi As the representative of the fourth medium-sized milling machine.，Powerful milling capability，Good handling comfort and milling economy，It is not only a handy tool for the rapid maintenance of municipal roads and bridges.，It is also suitable for deep digging and filling of pits and grooves.，Medium-scale milling construction projects, etc.，The application range is quite wide.。

Efficiency of Wirtgen Group equipment、Reliability has been fully verified in many large-scale municipal road and bridge maintenance projects.，The advantages of integrated construction also provide guarantee for the high-quality and efficient completion of the project.。High-quality equipment to create high-quality projects。Future，Wittgen Group will continue to focus on customer demand and market demand.，Provide more efficiency for road construction、Solutions for sustainability。

Source of project information：Peninsula Morning Post；The surging news；Released in Dalian