Combined type steel plate pile enclosure structure and construction method thereof

Abstract

The invention relates to a combined type steel plate pile enclosure structure and discloses the combined type steel plate pile enclosure structure and a construction method thereof. The combined typesteel plate pile enclosure structure comprises H-shaped steel and cap-shaped steel plates, and the H-shaped steel and the cap-shaped steel plates are distributed alternately and connected side by side; each H-shaped steel comprises a web plate, a short-wing margin plate and a long-wing margin plate, and the short-wing margin plates and the long-wing margin plates are perpendicular to the web plates; the two side edges of each long-wing margin plate are provided with a first buckling part and a first locking part correspondingly; each cap-shaped steel plate comprises a center web plate; the twoside edges of each center web plate are inclined to the same side face of the center web plate and extend outwards to form slant shoulder parts; every two slant shoulder parts are symmetrically arranged with the middle axis of the corresponding center web plate as the axis; the edges of every two slant shoulder parts horizontally and outwardly extend to form extending arms; the edges of every twoextending arms are provided with a second buckling part and a second locking part correspondingly; and the second buckling parts and the second locking parts and the first buckling parts and the first locking parts are connected in cooperation. The combined type steel plate pile enclosure structure is large in anti-bending strength, convenient to construct and connect, high in construction accuracy rate and high in construction quality controllability.

Description

technical field [0001] The invention relates to a combined steel sheet pile enclosure structure, in particular to a combined steel sheet pile enclosure structure and a construction method thereof. Background technique [0002] With the increase of building height and the development and utilization of underground space, the depth of foundation pit is also increasing, and the safety and economic rationality of deep foundation pit enclosure are becoming more and more important. In the field of deep foundation pit enclosure structures, traditional reinforced concrete piles or underground diaphragm wall enclosure structures are gradually being replaced by various new enclosure structures due to their disadvantages such as high cost, environmental pollution, and long construction period. At present, the steel pile enclosure technology has been recognized by people because of its reliable quality, reusable pile body, good water resistance, no pollution, and fast construction speed...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved is: the bending stiffness of the existing Larsen steel sheet pile is too small and is not suitable for deep foundation pit support; the combined steel sheet pile of H-shaped steel plate is difficult to drive due to the limitation of the section shape, and the accuracy rate is low. After the first H-shaped steel plate is skewed, all subsequent steel plates are skewed or even unable to be connected, and there is a lack of control measures for construction conditions that occur during the construction process. effective remedy

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