Construction method of sheet pile support structure with water-stop function for foundation pit support

Abstract

The invention discloses a sheet pile supporting structure with a water stopping function and a construction method. The sheet pile supporting structure with the water stopping function and the construction method are used for soil blocking and water stopping of the circumferential wall of a foundation pit. The sheet pile supporting structure with the water stopping function comprises sheet piles which are arranged along a positioning line for supporting of the foundation pit at intervals. Grooves are formed in the two side faces of each sheet pile respectively. A concrete splicing plate used for soil blocking and water stopping is arranged between the grooves of every two adjacent sheet piles. The two ends of each concrete splicing plate are embedded into the corresponding grooves. Rubber waterstops used for water prevention are arranged at the joints of the two ends of each concrete splicing plate and the corresponding grooves. According to the sheet pile supporting structure with the water stopping function and the construction method of the sheet pile supporting structure, assembly type construction is adopted, convenience and rapidness are achieved, the concrete splicing plates have the soil blocking and water stopping functions, and the rubber waterstops have the water preventing and sealing functions; the distance between the sheet piles can be properly increased, so that the pile insertion soil squeezing effect is relieved, the integrity of the supporting structure is guaranteed, the rigidity of the supporting structure is effectively improved, and finally the safety and stability of a foundation pit project are achieved; the sheet pile supporting structure is particularly suitable for relatively regular medium and small foundation pit projects.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a construction method for foundation pit support by a sheet pile support structure with a water-stop function. Background technique [0002] In recent years, with the rise of high-rise buildings, the scale of foundation pit projects has also increased. At the same time, with the rapid development of underground transportation and the continuous construction of underground shopping malls and municipal facilities, simple grading and excavation can no longer meet the actual project, and various forms of enclosure structures have followed. The core issue in foundation pit engineering is the rational design of the enclosure system, which should not only play a role in retaining soil, but also prevent soil and water loss outside the foundation pit, so that the ground settlement and horizontal displacement around the foundation pit can be controlled within the allowable...

AI Technical Summary

Problems solved by technology

At present, prefabricated sheet piles are mostly used for foundation pit support in projects. Due to the soil and water retaining effect of the support structure, the pile spacing is small, the amount of material used is large, and the lifting capacity of a single hoisting is relatively heavy. High standard

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