KR-20260065435-A - PRECAST CONCRETE BLOCK FOR FOUNDATION OF PILE

KR20260065435AKR 20260065435 AKR20260065435 AKR 20260065435AKR-20260065435-A

Abstract

A precast concrete (PC) block for a sound barrier foundation is provided. The provided precast concrete (PC) block has at least one multifunctional through-hole formed in the block body that penetrates in the thickness direction of the block body, wherein the multifunctional through-hole is provided at the front center of the block body and at one side and the other side of the front center of the block body, and is used for connecting a lifting means and for installing a sight-guiding device or a photovoltaic power generation module.

Inventors

박 희민
정진용
김광일

Assignees

주식회사 태산

Dates

Publication Date: 20260508
Application Date: 20241101

Claims (7)

A precast concrete (PC) block for a sound barrier foundation, characterized by having at least one multifunctional through-hole formed in the block body in the thickness direction, wherein the multifunctional through-hole is provided in the front center portion of the block body and on one side and the other side of the front center portion of the block body.
In Article 1, A precast concrete (PC) block for a sound barrier foundation, characterized in that the block body having the above-described multi-functional through-hole is provided with at least one pile installation groove in which at least one pile is inserted and installed on a bottom surface installed on the ground, and an insertion fixing part and a protrusion part having mutually corresponding uneven structures are provided on one side and the other side of the block body, and at least one steel wire installation hole is provided in the block body for installing at least one tension steel wire through the longitudinal direction of the block body.
In either Article 1 or Article 2, A precast concrete (PC) block for a sound barrier foundation, characterized in that the above-mentioned multifunctional through-hole is provided with a diameter capable of penetrating and installing a lifting means, and is formed in the shape of a rectangular through-hole, a square through-hole, or a circular through-hole.
In either Article 1 or Article 2, A precast concrete (PC) block for a sound barrier foundation, characterized in that the above-mentioned multi-functional through-hole is configured to allow a lifting means to pass through, and the position at which the lifting means is coupled to the multi-functional through-hole is changed so as to change the center of gravity of the block body.
In either Article 1 or Article 2, A precast concrete (PC) block for a sound barrier foundation, characterized in that the multifunctional through-holes are formed in a horizontal structure, a zigzag structure, or a curved structure in the block body.
In either Article 1 or Article 2, A precast concrete (PC) block for a sound barrier foundation, characterized in that the above-mentioned multifunctional through-hole is provided with a fixing jaw at the front inlet end or the rear inlet end to install either a sight-guiding device or a photovoltaic power generation module.
In Article 6, The above-mentioned visual guidance device is a precast concrete (PC) block for sound barrier foundations characterized by the application of either an LED delineator or a film-type delineator.

Description

Precast Concrete (PC) Block for Foundation of Pile The present invention relates to a precast concrete (PC) block, and more specifically, to a precast concrete (PC) block for soundproof wall foundations. Generally, sound barriers are installed to provide overall noise reduction in areas where excessive traffic noise is generated due to increased traffic volume on general roads near densely populated residential areas, highways, railways, high-speed railways, or existing roads exposed above ground. Conventionally, to form a foundation for a sound barrier, a hole is formed by excavating to a certain depth, and after embedding a pile (H-Pile) in the hole, a formwork is installed to form a concrete (PC) retaining wall, and the concrete (PC) is poured on-site to complete the foundation. After that, sound barrier posts are assembled to anchors pre-embedded in the foundation, and sound barrier panels are installed between the sound barrier posts to complete the sound barrier structure. However, when forming the foundation of a sound barrier using the aforementioned on-site casting method, construction errors may occur during the curing process, and since space must be secured for construction to pour concrete (PC), traffic flow on the road is obstructed during this process, causing traffic congestion, and there are additional problems such as delays in construction time due to the process of installing and then dismantling the formwork. Accordingly, in order to solve the aforementioned problems, a method has been proposed to eliminate a series of processes, including formwork installation, delivery, pouring, curing, and formwork removal, for on-site pouring of concrete (PC) by using precast concrete (PC) blocks produced in a factory with the same specifications through a standardized process. A prior art document using precast concrete (PC) blocks as a foundation for a sound barrier is disclosed in Korean Published Patent No. 10-2012-0062184, titled "Foundation for a sound barrier with a rigidity-reinforcing structure using micro piles and method of construction thereof" (published June 14, 2012). The above Published Patent No. 10-2012-0062184 describes a construction method in which a hole is formed, micro piles are embedded in the hole, a plurality of the head portions of the micro piles are provided in a space formed on the lower inner side of a precast foundation block, and grouting is injected into the space. However, the aforementioned published patent No. 10-2012-0062184 has a problem in that the load is concentrated on the head of the micropile, but the space formed in the precast foundation block occupies most of the volume, so the bearing capacity of the sound barrier foundation is determined by the quality of the grouting, and if quality control is not effectively carried out, a problem of repair due to reduced bearing capacity occurs. In addition, the precast foundation block is manufactured as a vertically long vertical wall while mounted on the excavated surface of the ground, so it is difficult to transport and is relatively vulnerable to lateral loads. Furthermore, since all loads applied to the sound barrier are transferred to the head of the micropile through grouting filled separately from the foundation block, there is a structural weakness in that the precast foundation block practically cannot behave as one with the micropile. Another prior art document is Korean Registered Patent No. 10-2100416, "PC block for sound barrier pile foundation and method for constructing a sound barrier pile foundation using the same" (published on April 13, 2020). Registered Patent No. 10-2100416 addresses the problems of conventional precast concrete (PC) blocks, such as the difficulty in achieving a tight connection between the pile and the foundation block because the filling area between the pile insertion groove and the top of the pile is difficult to construct tightly when filled with a filler material like mortar, and the difficulty in achieving a tight connection between the foundation blocks when multiple foundation blocks are used. To solve these problems, the PC block provides a tension member insertion hole and installs a tension member to tightly construct the filling area, thereby enabling a tight connection between the pile and the PC block. In other words, the aforementioned registered patent No. 10-2100416 does not merely stop at the pouring and curing of the filler material as in the past, but rather ensures that the filled part becomes airtight by introducing tension force through the release of the temporary anchorage of the tensioning member after the pouring and curing of the filler material (PRE-TENSION method). However, regarding the aforementioned registered patent No. 10-2100416, when constructing a sound barrier foundation by installing multiple PC blocks in close contact in succession, there is a significant difficulty in installing the front and rear sides of each PC block side by si