Novel steel casing special for lake plank road

Abstract

The invention discloses a novel steel casing special for a lake plank road. The novel steel casing comprises an outer-layer steel pipe, a bottom conical drill and a plurality of inner protecting pipesconnected end to end, wherein the outer walls of the inner protecting pipes are sleeved with the outer-layer steel pipe; the bottom conical drill is connected with the tail of the outer-layer steel pipe; the bottom ends of the inner protecting pipes are connected with the bottom conical drill through connecting pipes; a plurality of arc protrusions are arranged at the bottoms of the inner protecting pipes; guide slopes are arranged at the tails of the arc protrusions; arc grooves corresponding to the arc protrusions are formed in the tops of the inner protecting pipes; counter bores are formed in the two ends of each arc protrusion; locking springs and steel balls are arranged in the counter bores; the tails of the steel balls are connected with the locking springs; hemispherical notchesmatched with the steel balls are formed in the two ends of each arc groove; the inner protecting pipes connected in a multi-section manner are positioned in the outer-layer steel pipe; the outer-layersteel pipe can be effectively reinforced; and the phenomenon that the outer-layer steel pipe is extruded and deformed in the sinking process is avoided.

Description

technical field [0001] The invention relates to a novel steel casing specially used for lake walkways. Background technique [0002] The lake trestle is a sightseeing corridor for pedestrians to walk on the lake, especially the lake in the scenic area, which is built with a steel-concrete structure, and its construction requirements are lower than those of bridges. [0003] In the development of scenic spots, lake trestles are often built by pumping out the lake or building temporary cofferdams to create a waterless environment in the lake, and then build trestles. This kind of construction method often requires a large initial investment. Moreover, in lakes with large water areas, the construction time of this construction method in the early stage is too long and unsatisfactory. [0004] Based on the above situation, the construction method of laying steel casings to build lake trestle roads has been gradually adopted. However, the traditional steel casings have low struc...

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Problems solved by technology

[0003] In the development of scenic spots, lake trestles are often built by pumping out the lake or building temporary cofferdams to create a waterless environment in the lake, and then build trestles. This kind of construction method often requires a large initial investment. Moreover, in lakes with large water areas, the early construction time of this construction method is too long and unsatisfactory

[0004] Based on the above situation, the construction method of laying steel casings to build lake trestle roads has been gradually adopted. However, the traditional steel casings have low structural strength and poor waterproof performance of pipe walls, so they cannot be directly used for the construction of lake trestle roads.

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