In recent years, urban infrastructure, rail transit, and water conservancy bridge projects have continuously extended to complex geological areas, with prominent pain points in the construction of prone to collapse formations such as quicksand, pebbles, caves, and silt layers. The traditional mud wall protection technology has obvious drawbacks. SINOVO's casing oscillator, as the core category of full casing drilling rigs, has become the main equipment in the field of special pile foundation construction with its unique casing drive structure and strong adaptability to working conditions, providing reliable solutions for various difficult pile foundation projects.

It is understood that the SINOVO tube casing oscillator belongs to a specialized casing drive device. The core working principle is to rely on a clamping mechanism to drive the casing to perform forward and reverse reciprocating twisting, greatly reducing the frictional resistance of the soil layer during the sinking and lifting process of the casing, and cooperating with a dedicated oil cylinder to complete the entire operation of casing sinking and lifting. The equipment can clamp a super large specification casing with a maximum diameter of 3300 millimeters, which can drive the casing to rotate clockwise and counterclockwise, and can also drive the casing to move up and down along the axis of the pile hole; By combining grab buckets and spiral drilling tools, the entire process of pipe following drilling can be achieved, avoiding problems such as hole collapse and diameter reduction from the root, and greatly improving the stability of borehole formation.

At the level of geological adaptation, this pipe casing oscillator specifically solves the construction difficulties of loose geological layers such as soft soil layers, gravel layers, and gravel containing soil layers. It is particularly suitable for extreme working conditions such as gravel, silt, quicksand, fine sand, fractured rock layers, karst cave development layers, miscellaneous filling soil layers, and river and lake swamps where mud wall protection fails. Its application scenarios cover a wide range. In the implementation of engineering projects, the equipment is widely used for urban subway foundation reinforcement, deep foundation pit interlocking pile support, old pile removal, and site clearing and renovation. At the same time, it is suitable for drilling and grouting pile construction in railways, ports, roads and bridges, high-rise buildings, river management, water conservancy and hydropower projects, and its usage rate continues to increase in municipal renewal and underground space development projects.

Targeted optimization of the hydraulic system configuration of the product, equipped with a dedicated integrated valve group, with high flow output and lower operating heat, can simultaneously balance the tube rolling action and auxiliary mechanism operation, and achieve better energy utilization efficiency; Add an auxiliary clamping system with sufficient clamping torque to effectively avoid eccentric stress on the casing, improve the verticality of construction and the service life of the casing. In terms of performance parameters, the equipment is compatible with a casing diameter range of 2000-3000 millimeters, and the output torque range can reach 5800-19900KN · m. The bearing capacity of large-diameter and deep pile construction is sufficient to meet the strict requirements of ultra deep and ultra large diameter full casing construction.

Industry insiders have stated that with the tightening of environmental control measures in domestic construction and the increasing proportion of complex geological projects, the market demand for full casing pipe rolling construction technology continues to expand. SINOVO pipe casing oscillator, with its solid structural design, wide geological adaptability, and strong power reserve, effectively fills the gaps in traditional hole forming technology. In the future, it will continue to assist in the efficient and safe promotion of major infrastructure projects, and promote the iterative upgrading of pile foundation construction equipment towards large-scale and high reliability.