In the last issue, Wittgen SP 15i In the application collection chapter，Xiaowei brought us the Wittgen slipform Paver. SP 15i Collection of Application Cases of Paving Curb and Shoulder Slab（Click to view case details），In this issue, Xiaowei will show his fans. SP 15i Collection of Application Cases of Paving Cement Concrete Crash Barrier Structure。
As one of the common safety facilities on the road，The cement anti-collision wall has the function of blocking、Separation、Function of warning and inducing sight，Its main function is to play a protective role in Vehicle driving.，Avoid accidents of Vehicles and pedestrians during driving。With the increasing awareness of road safety,，The crash barrier is becoming one of the more and more important safety facilities.。
Dealing with the paving work of such large cement structures，The use of traditional manual methods requires a lot of manpower and transportation costs.，Therefore, Wittgen is used SP 15 i The slipform Paver becomes the ideal choice.。It is worth mentioning that，Besides saving a lot of labor costs,，Aiming at the requirements of high compactness and high strength of anti-collision wall，SP 15i The line type can be beautiful、The appearance is regular，And meet that requirement of high construction standard.，And compared to the traditional way.，More efficient construction。
Can ”Seventy-two changes“More than fighting to defeat Buddha.，Wittgen SP 15i Slip-form Paver all possible，Who but myself！Let's take a look at Wittgen with Xiaowei. SP 15i The anti-collision wall structure of the seventy-two changes should be paved.！
Application 1：New Jersey crash barrier
Xiangfen National Highway 108-Qu Wo-Houma Transit Rerouting Project，Total length 67.654 kilometers，Adopt the standard construction of two-way four-lane first-class highway，The design speed is 80 kilometers./Hour。The project needs to be pavedFType central divider concrete isolation pier,Concrete strength C30,Slump is controlled at 20-30 mm。
In the course of construction，SP 15i The slip-form paver spans the pre-bound and fixed reinforcement cage.,The mixed fresh concrete will be delivered to the site by the material delivery tanker.，Transferred by the conveyor belt of the slipform paver to the mold hopper of the crash wall mounted laterally on the machine，The high-frequency vibrating rod is used for vibrating, compacting and pulping the concrete。
Finally,Concrete enters a mould forming cavity to be extruded and formed in one step。With SP 15i Keep moving, A large-size structure is continuously extrude from that back of the die.。
With Wittgen SP 15i Outstanding construction performance,It is also very easy to pave this kind of large anti-collision wall concrete structure.。In case of normal supply of materials,On average, it can easily advance 300 per day. m Above。In this way, the concrete with large section can be vibrated and compacted.，One-time molding，The strong exciting force and vibrating range of Wirtgen vibrating system are also fully verified.。
Application 2：Low-reinforcement anti-collision guardrail
In Guizhou G60 In the construction project of concrete guardrail in the middle of Shanghai-Kunming Expressway,Use Wittgen SP 15i Slip-form test section of New Jersey guardrail with steel cage and innovative concrete guardrail with low reinforcement strand。Through the slip-form test and the study of material mix proportion,，With Wittgen's professional technical support and good machine performance，Finally, the construction party successfully realized the laying of the new low-reinforcement guardrail for the first time in China.。
It is different from the traditional anti-collision guardrail with embedded reinforcement cage.，The low reinforcement concrete guardrail uses several strands of steel strands instead of reinforcement cages.，Therefore, there is less support,Slump of concrete material、Compactness and other performance requirements are higher。The flexible structural design and intelligent and accurate elevation control system of Wittgen slipform paver can meet the needs of special working conditions.。SP 15i Three walking tracks can swing freely,Flexible positioning,When dealing with large-sized concrete structures,The machine can always maintain good stability.。The equipment is also equipped with high-precision leveling sensor and steering sensor for automatic walking.，Ensure that the structure can follow the preset linetypes exactly、Precise paving at the elevation。In case of normal supply of materials，Single equipment can advance 300 per day m Above,Efficient and labor-saving。
Application III：Viaduct crash wall
Yinhe Road in Suzhou, Anhui is the main road of the city.，Including overpass bridge 1 crossing Beijing-Shanghai Railway,427.64 m，Adopted SP 15i Laying of anti-collision guardrail with embedded reinforcement cage on viaduct by mechanized construction method，In continuous feeding，Paving accuracy、Excellent performance in construction stability，Overcome the challenge of continuity of concrete transport supply on viaduct。Anti-collision guardrail height 1.28 m，Base width approx. 60 cm。
More Crash Wall Cases
GHigh-stability anti-collision wall of national highway 230
GAnticollision wall of Lanzhou section of expressway 22
Yancheng City, Jiangsu Province G204 High speed crash wall
Anti-collision guardrail of Leirong high-speed bridge
Wei has something to say
At present，Slipform paving, an automatic mechanical construction method, is replacing the traditional method and becoming the mainstream of small concrete structure construction.。There will be more application scenarios and market opportunities in the future.。And Wittgen SP 15i The stability and reliability of slipform paver have been recognized by many construction projects and users all over the country.，Trusted choice in this field，Help investors improve their competitiveness，Profit in the medium and long term。
Action is better than heart.，For more information on this area of the business，Welcome to contact the local agent of Wittgen in China.，Professionals will provide you with professional advice and answers.。
