At the construction site of the Guangbei Reservoir reinforcement project and the water diversion project, key water conservancy projects in Shandong Province, multiple CSM dual-wheel mixing machines independently developed by Shanghai Jintai Engineering Machinery Co., Ltd. are efficiently advancing cutoff wall construction through multi-machine coordinated operation. Following the "Yellow River Water Diversion to the East" emergency project (Dongying section) sedimentation and storage project, Jintai's CSM method drilling rigs have once again demonstrated their technical strength in writing a new chapter for water conservancy construction, injecting strong momentum into Shandong's water resource security. 
   

 Technical Cluster Demonstrates Power, Complex Strata Overcome with Ease
    In this operation, Jintai's CSM method drilling rigs consist of 2 SC30 units, 1 SC35 unit, and 2 SC45 units, forming a multi-model coordinated operation system. The equipment demonstrates outstanding adaptability to the stratigraphic characteristics of Guangbei Reservoir—geological conditions featuring alternating distribution of soil layers, sand layers, and silt layers. The SC series drilling rigs possess the advantage of ultra-deep equal-thickness cement-soil mixing construction, forcibly mixing in-situ soil with curing agent through specially designed milling wheels to form continuous cutoff walls. Under the construction requirement of an average depth of 18-20 meters, the equipment maintains an efficient pace of completing one wall panel in 2 hours, improving work efficiency by over 30% compared to traditional methods. 
   
 

 CSM Method Safeguards the Project, Achieving Both Ecological and Economic Benefits
    As a core technology product independently developed by Shanghai Jintai, the CSM method series products play a key role in this project. Through the technical integration of equal-thickness cement-soil deep mixing technology, it breaks through the limitations of traditional methods on geological conditions. When dealing with silt layers, the equipment adopts a dual-grouting mode: injecting bentonite slurry during the downward process for wall protection, and spraying cement slurry during lifting to strengthen the wall, effectively solving the risk of hole collapse in soft soil strata. Meanwhile, the entire construction process achieves zero spoil disposal, with an in-situ soil utilization rate of 95%, in line with the concept of green water conservancy construction.

 
   Technological Iteration, Outstanding Track Record     The continuous breakthroughs of Jintai's CSM method drilling rigs benefit from their strong technological iteration capability. From the initial SC35 rotary drilling rig-type platform to today's coverage of 20-65 meter depths, after more than a decade of continuous innovation and upgrading, the main machine platforms can adapt to construction under various working conditions, such as walking electro-hydraulic, crawler electro-hydraulic, crawler oil-hydraulic, and oil-electric hybrid power, and have gained widespread recognition in the industry. Shanghai Jintai's CSM method products excel in technical performance, construction efficiency, and application scope, making them the leader in the domestic CSM method field. In the Guangbei Reservoir project, these technological achievements have been translated into stable output of several hundred cubic meters of cutoff wall per day, providing solid guarantees for the project's on-schedule completion. 
 

     The Guangbei Reservoir project is not the first large-scale water conservancy construction appearance of Jintai's CSM method drilling rigs in Shandong. As early as the "Yellow River Water Diversion to the East" emergency project, 11 Jintai SC series drilling rigs set a record for a 25-kilometer ultra-long cutoff wall construction. And at the Shandong Tongyu Heavy Industry project, they set a record of 53.5 meters as the "deepest in North China." In the Guangbei Reservoir project, the SC45 drilling rig achieved a new industry benchmark of completing 12 wall panels per day at a depth of 20 meters, far exceeding construction expectations.