Steel pile casing positioning device and method for steel sheet pile hole guiding construction

Abstract

The invention provides a steel pile casing positioning device and method for steel sheet pile hole guiding construction. The device comprises a positioning guide frame (1), a steel pipe positioning pile (2), a steel pile casing (3), an anchoring pin device (4), a positioning buckle (5) and a steel sheet pile inserting and punching clamping groove frame (6). The positioning guide frame is fixed to the positioning pile, and the positioning buckle is arranged on I-shaped steel of the positioning guide frame and connected with the steel pile casing through the anchoring pin device; the anchoring pin device is formed by connecting a fixing rod (41) capable of freely rotating and a fixing anchor block (42); and the steel pile casing is connected to the positioning buckle through the fixing rod of the anchoring pin device, and stepless adjustment of the transverse position of the positioning buckle on the I-shaped steel is achieved through loosening and tightening of a top and lateral loosening and tightening rotary knob handle. According to the steel pile casing positioning device and method for steel sheet pile hole guiding construction, the problem that for a long time, in the steel sheet pile inserting and punching construction process, correct positioning and perpendicularity control cannot be achieved is solved, the quality and efficiency of steel sheet pile cofferdam construction are greatly improved, construction operation is convenient, the number of matched devices is small, and the construction cost can be greatly reduced.

Description

technical field [0001] The invention relates to a steel casing positioning device and method for steel sheet pile lead hole construction, belonging to the technical field of civil engineering. Background technique [0002] The steel sheet pile is a kind of steel structure with linkages on the edge, and the linkages can be freely combined to form a continuous and compact retaining wall or retaining wall. [0003] With the development of my country's traffic engineering construction, the design of bridges must not only meet the traffic requirements across rivers, lakes and seas. But also need to meet the environment, landscape and geographical location requirements. In design, in order to ensure the safety of navigation and the maximum flow during flood discharge, the pier foundation in water is designed as a low pile cap, so that the cap is completely buried under the river bed, and the foundation groove of the cap cannot be formed by sucking mud. Vertical excavation is req...

AI Technical Summary

Problems solved by technology

[0007] ②When the driving force of the steel sheet pile exceeds a certain value, it may be slow to drive or cannot be driven;

[0009] ④ However, since the ground where the project is located is often not on the same plane, there is usually no construction guide frame on site, but steel casings are used for positioning

In weak strata, the positioning ability of the steel casing is poor, and it tends to displace along with the vibration of the drilling machinery during the construction of the drilling, and this displacement is difficult to be found and even more difficult to control, resulting in The deviation of the lead hole brings difficulties to the insertion and driving of the steel sheet pile. The failed lead holes are as follows: figure 2 shown

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