KR20110020888A - The c/g filter composite and the construction method for collapse prevention and defect prevention of retaining wall therewith - Google Patents

The c/g filter composite and the construction method for collapse prevention and defect prevention of retaining wall therewith Download PDF

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KR20110020888A
KR20110020888A KR1020110011742A KR20110011742A KR20110020888A KR 20110020888 A KR20110020888 A KR 20110020888A KR 1020110011742 A KR1020110011742 A KR 1020110011742A KR 20110011742 A KR20110011742 A KR 20110011742A KR 20110020888 A KR20110020888 A KR 20110020888A
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retaining wall
filter
filter composition
aggregate
prevention
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KR1020110011742A
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Korean (ko)
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KR101070012B1 (en
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최봉훈
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최봉훈
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B11/00—Drainage of soil, e.g. for agricultural purposes
    • E02B11/005—Drainage conduits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines

Abstract

PURPOSE: C/G filter composite and a construction method for collapse prevention and defect prevention of a retaining wall using the same are provided to prevent the collapse or defect of a retaining wall by reduction in earth pressure and water pressure and increase the safety and stability of the retaining wall. CONSTITUTION: A construction method for collapse prevention and defect prevention of a retaining wall using C/G filter composite comprises following steps. A drainpipe(200) is installed behind a built retaining wall(600), and a form is installed. C/G filter composite is mixed. The mixture of C/G filter composite is placed between the retaining wall and the form. The placed C/G filter composite is cured for a fixed time, and the installed form and the support are removed, so a drainage zone(100) is formed. A non-woven fabric is installed in the exposed portion of the drainage zone. Back-filling soil(500) is placed on the rear side of the drainage zone.

Description

씨지 필터 조성물 및 그 씨지 필터 조성물을 이용한 옹벽의 붕괴 방지와 하자 방지 시공 방법{the C/G filter composite and the construction method for collapse prevention and defect prevention of retaining wall therewith}The C / G filter composite and the construction method for collapse prevention and defect prevention of retaining wall therewith}

일반적인 건설 현장의 옹벽 시공에서, 옹벽 붕괴 및 하자 발생의 원인의 많은 부분이 옹벽 배면의 토압 증가, 즉, 배수 불량 및 다짐 불량과, 이의 복합적 요인으로 인한 토압 증가와 물의 흐름(침투수)으로 인한 기초 지반의 연약화 및 침하 등이 주원인이며, 그리하여 본 발명에서는 필터(filter)재의 성능을 향상시켜 배수를 원활하게 하고, 효과적인 다짐으로 지반 강도를 높이며, 배수 응력을 향상시켜 토압(수압)를 감소시키고, 시공성을 높여 옹벽 시공에서 붕괴 및 하자의 주된 요인을 감소시키고, 경제적이고 효율적이며, 안전성과 안정성을 높이는 시공 방법을 제공한다.
In retaining wall construction in a typical construction site, a large part of the causes of retaining wall collapse and defects are caused by increased earth pressure on the back of the retaining wall, that is, poor drainage and compaction, and a combination of increased earth pressure and water flow (infiltration). In the present invention, the soft ground and settlement of the foundation ground are the main reasons. Therefore, in the present invention, the performance of the filter material is improved to smooth the drainage, the effective compaction increases the ground strength, and the drainage stress is improved to reduce the earth pressure (water pressure). The present invention provides a construction method that improves workability, reduces major factors of collapse and defects in retaining wall construction, and is economical and efficient, and increases safety and stability.

통상 옹벽은 토압에 저항하는 가장 일반적인 구조물로써, 도로, 철도, 항만, 방조제, 교대, 아파트 등 용지의 제한에 따른 토지의 최적 이용을 목적으로 사용하며, 주위에서 자주 볼 수 있는 옹벽 구조물로는 도로와 경계를 이루는 주택부지, 산기슭 등의 경사면에 설치되어, 지형 및 지질 조건을 극복하고, 토압 및 우수 등의 자연 조건에 의해 이들이 붕괴를 막는 기능을 담당한다.
Generally, the retaining wall is the most common structure that resists earth pressure. It is used for the optimal use of land due to the limitations of the land such as roads, railways, ports, embankments, shifts, apartments, and the like. It is installed on the slopes of residential sites and foothills bordering the hills, and overcomes the topographical and geological conditions, and is responsible for preventing them from collapsing by natural conditions such as earth pressure and storm water.

일반적인 옹벽 시공 방법을 살펴 보면, 설치 높이 만큼 거푸집을 설치하고, 철근을 배근한 다음, 콘크리트를 타설·양생하는 공법과, 단위 크기로 제조된 콘크리트 옹벽블록을 일정 높이로 쌓는 조립식(또는, 조적식) 공법이 있다.
In general, the retaining wall construction method is to install the formwork as much as the installation height, reinforce the reinforcing bar, then pour and cure concrete, and the prefabricated (or masonry) stacking the concrete retaining wall blocks manufactured to unit size to a certain height. ) There is a construction method.

또한, 상기 옹벽 시공 공법으로 일정 높이의 옹벽을 시공한 다음에는, 도6에 도시한 바와 같이, 옹벽(1) 배면에 뒤채움용 흙(3)을 채워 다지는 뒤채움을 하여 마무리하는데, 뒤채움시 흙(3)으로만 채우기보다는, 옹벽(1)과 뒤채움용 흙(3) 사이에 자갈이나, 골재를 일정 폭(단면 폭)으로 적재한 필터(filter) 배수대(2)와, 그 필터 배수대(2) 하부에 유공관(2´)을 추가하여, 유공관(2´)과 옹벽(1)의 배수공(1´)으로의 배수가 용이하게 이루어지도록 하는 구조가 있으며, 이렇게 배수대를 가지는 옹벽 구조는 국내특허공개 제 2000-0006620호, 국내특허공개 제 2008-0014176호, 국내특허공개 제 2010-0030726호, 국내특허등록 제 0981258호에 게시되어 있다.
In addition, after constructing the retaining wall of a predetermined height by the retaining wall construction method, as shown in Figure 6, the back of the retaining wall (1) is filled with the back filling soil (3) to finish the back filling, finish Filter drains (2) loaded with gravel or aggregate at a constant width (cross section width) between retaining wall (1) and backfilling soil (3), rather than filling only with soil (3), and A hole hole 2 'is added to the lower portion of the filter drain 2 so that the water hole 2' and the retaining wall 1 can be easily drained to the drain hole 1 '. Retaining wall structure has been published in Korean Patent Publication No. 2000-0006620, Domestic Patent Publication No. 2008-0014176, Domestic Patent Publication No. 2010-0030726, and Domestic Patent Registration No. 0981258.

이외에도, 국내특허공개 제2005-0012870호에는 전후면 철망 사이를 수평와이어로 결속하며 내부에 석재가 담긴 돌망태를 구비하고, 옹벽의 후면에 후방으로 돌출 후면에는 다수개의 걸고리에 상기 돌망태가 걸리도록 설치한 옹벽의 뒤채움 구조에 대한 내용이 게시되어 있다.
In addition, Korean Patent Laid-Open Publication No. 2005-0012870 is provided with a gabion containing stone therein, which is bounded by horizontal wires between the front and rear wire meshes, and protrudes rearward to the rear of the retaining wall. A post about the backfill structure of a retaining wall is posted.

그러나 앞서 예시한 옹벽 뒤채움 구조 중에서, 옹벽(1) 배면에 필터 배수대(2)를 가지는 시공에서는, 도6에 도시한 바와 같이, 배면 배수를 위해 위의 골재로 균일한 단면 폭을 가지는 필터 배수대(2)를 설계하여, 그 설계대로 현장에서 시공하려 하나, 첫 번째 층으로 골재(필터재) 채움과 성토(다짐)을 하고, 두 번째 층으로 골재 채움과 성토(다짐)을 하며, 이렇게 골재 채움과 배면 성토(다짐)를 층별로 반복적으로 시공하게 되므로, 작업의 상호 간섭으로 인해 반복 작업이 비효율적이고, 필터 배수대(2)는 골재로 구성하므로, 종, 횡으로 높이를 따라 규정된 단면 폭으로 설계된 단면으로로의 형성이 어렵다.In the retaining wall backfill structure exemplified above, however, in the construction having the filter drainage basin 2 on the back wall of the retaining wall 1, as shown in FIG. 6, the filter having a uniform cross-sectional width with the above aggregate for back drainage is shown. Design the drainage basin (2) and install it on site according to the design, but fill and fill the aggregate (filter material) with the first layer, and fill and fill the aggregate with the second layer, Since aggregate filling and back fill (composition) are repeatedly constructed by floors, repetitive work is inefficient due to mutual interference of the work, and the filter drainage basin (2) is composed of aggregate. It is difficult to form a cross section with a designed cross section width.

다시 말하면, 기존 옹벽의 필터 배수대 및 뒤채움 시공에서는, 골재 채움과 배면 성토의 과정을 시공 옹벽(1)의 높이까지 반복하기 때문에, 골재와 뒤채움용 흙(3)의 상호 간섭으로 작업이 비효율적이고, 필터 배수대(2)는 골재로 이루어지므로, 종, 횡으로 높이를 따라 규정된 단면 폭으로 시공하기 어려워, 실제로는 도7과 같이, 필터 배수대(2)의 단면 폭은 균일하지 못하게 시공이 이루어지고, 단절이 되며, 반복 작업의 비효율성과 경제성 문제 등으로 뒤채움용 흙의 포설에도 다짐 불균형이나 다짐 부족이 발생한다.In other words, in the existing filter drainage and backfilling of the existing retaining wall, the process of filling the aggregate and backfilling is repeated to the height of the retaining wall 1, so that the work is prevented by mutual interference between the aggregate and the backfilling soil 3. Since it is inefficient and the filter basin 2 is made of aggregate, it is difficult to install with a cross-sectional width defined longitudinally and horizontally along the height. In reality, as shown in FIG. Unstable construction, disconnection, compaction imbalance or lack of compaction occurs in the backfilling soil due to inefficiency and economical problems of repetitive work.

즉, 경제성을 고려한 절토 및 성토의 최소화로 작업 공간 부족, 골재층의 부실 및 흙 다짐의 효율 저하 등으로, 필터 배수대의 단면 형상이 설계처럼 되지 않고, 도7에 도시한 바와 같이, 필터 배수대의 단면 부족(필터재 부족) 및 변형, 이상 단면 형성과 필터재의 단절(도7의 B 부분), 흙의 다짐 불균형 및 다짐 부족이 된다.That is, the cross-sectional shape of the filter basin does not look like a design due to lack of work space due to the economical efficiency and minimization of fill and poor efficiency of aggregate layer and compaction of soil, and as shown in FIG. Insufficient cross section (lack of filter material) and deformation, abnormal cross section formation and disconnection of filter material (part B in Fig. 7), compaction imbalance and lack of compaction of soil.

따라서, 균일하지 못한 필터 배수대의 단면 폭과 단절로 인해서, 옹벽 배면의 배수 불량으로 인한 토압(수압) 증가로 옹벽 붕괴 및 하자가 발생하는 주된 원인이 되고, 또한, 뒤채움용 흙이 불균일하거나, 다짐이 불량하여, 배면토내 물이 옹벽 기초 저면 및 측면에 침투, 지반 약화로 인한 침하(도7), 용수 등이 옹벽의 하자 및 옹벽의 붕괴의 원인이 될 수 있다.
Therefore, due to the non-uniform cross-sectional width and disconnection of the filter basin, the earth pressure (hydraulic pressure) increase due to the poor drainage on the back wall of the retaining wall causes the retaining wall collapse and defects, and the backfilling soil is uneven, Poor compaction may cause water in the backing soil to penetrate the bottom and sides of the retaining wall foundation, settle due to ground weakness (FIG. 7), water and the like, which may cause defects in the retaining wall and collapse of the retaining wall.

아울러, 앞서 돌망태를 옹벽 후면에 걸어 설치하는 예시의 경우에는, 돌망태를 옹벽에 종속하기 위해 옹벽에 걸고리를 구성해야하므로, 일반적인 옹벽에 적용하기 어려운 문제점이 있으며, 또한, 돌망태 제조 비용으로 인해서, 옹벽 시공 비용이 기존보다 높은 문제점이 있었다.
In addition, in the case of installing the gabion hanging on the rear of the retaining wall, the hooks must be formed on the retaining wall in order to subordinate the retaining wall to the retaining wall, and thus it is difficult to apply to the general retaining wall. There was a problem that the construction cost is higher than the existing.

따라서 본 발명은 상기의 문제점을 해결하기 위해서, 시멘트, 골재, 물로 구성하는 씨지 필터(C/G filter) 조성물이 구비되어, 통상 구조의 옹벽 뒤쪽 하부에 배수관을 설치하고, 그 배수관을 포함하여 필요 및 설계 높이로 거푸집을 설치하며, 구비한 씨지 필터 조성물을 혼합하고, 그 씨지 필터 조성물의 혼합물을 거푸집과 옹벽 사이에 타설하며, 상기 타설된 씨지 필터 조성물의 혼합물을 양생하고, 거푸집이 제거되어, 씨지 필터 조성물이 배수대를 구성하며, 상기 배수대 후면에 일괄 다짐하도록 뒤채움용 흙을 포설하고, 다짐하면 시공을 용이하게 완료하며, 이렇게 적정 단면을 유지하는 배수대에 의해서, 배수를 용이하게 하고, 뒤채움 흙의 다짐으로 인해서 침투수의 유입을 최소화하며, 토압 및 수압이 감소하여 옹벽의 붕괴나 하자를 방지하며, 옹벽의 안전성 및 안정성을 높이도록 한다.Accordingly, in order to solve the above problems, the present invention is provided with a C / G filter composition composed of cement, aggregate, and water, and installs a drain pipe at a lower portion behind the retaining wall of the structure, and includes the drain pipe. And installing the formwork at the design height, mixing the sewage filter composition provided therein, pouring the mixture of the seeding filter composition between the formwork and the retaining wall, curing the mixture of the poured sage filter composition, and removing the formwork, The seed filter composition constitutes the drainage basin, and the backfilling soil is laid on the rear of the drainage basin, and when the compaction is completed, construction is easily completed. Minimize inflow of infiltrated water due to backfilling of soil, and reduce earth pressure and water pressure to prevent retaining wall collapse and defects, and retaining wall To increase safety and stability.

또한, 상기 뒤채움용 흙의 종류나 필요에 따라, 배수대와 뒤채움용 흙 사이에는 부직포를 더 설치하여, 뒤채움용 흙이 배수대로 유입되어 배수 능력이 감소하는 것을 방지하도록 한다.
In addition, according to the type or need of the backfilling soil, a nonwoven fabric is further installed between the drainage pad and the backfilling soil to prevent the backfilling soil from flowing into the drainage and reducing the drainage capacity.

이와 같이 본 발명은, 시멘트, 골재, 물로 구성하는 씨지 필터(C/G filter) 조성물이 구비되어, 통상 구조의 옹벽 뒤쪽 하부에 배수관을 설치하고, 그 배수관을 포함하여 필요 및 설계 높이로 거푸집을 설치하며, 구비한 씨지 필터 조성물을 혼합하고, 그 씨지 필터 조성물의 혼합물을 거푸집과 옹벽 사이에 타설하며, 상기 타설된 씨지 필터 조성물의 혼합물을 양생하고, 거푸집이 제거되어, 씨지 필터 조성물이 배수대를 구성하며, 상기 배수대 후면에 일괄 다짐하도록 뒤채움용 흙을 포설하고, 다짐하면 시공을 용이하게 완료하며, 이렇게 적정 단면을 유지하는 배수대에 의해서, 배수를 용이하게 하고, 뒤채움 흙의 다짐으로 인해서 침투수의 유입을 최소화하며, 토압 및 수압의 감소하여 옹벽의 붕괴나 하자를 방지하며, 옹벽의 안전성 및 안정성이 높은 효과가 있다.Thus, this invention is equipped with the C / G filter composition which consists of cement, aggregate, and water, and installs a drain pipe in the lower part behind the retaining wall of a structure normally, and forms a formwork at the required and design height including the drain pipe. Install, mix the provided sage filter composition, pour a mixture of the sage filter composition between the formwork and the retaining wall, cure the mixture of the poured sage filter composition, remove the formwork, To construct a backfilling soil to compact the rear of the sump, and to complete the construction easily when compacted, by a drainage to maintain the proper cross-section, to facilitate drainage, Minimizes the inflow of infiltration water through compaction, prevents the collapse of the retaining wall and the defect by reducing the earth pressure and water pressure, and the high safety and stability of the retaining wall A.

아울러, 시공시에 옹벽의 배면과 거푸집 사이에 씨지 필터 조성물의 혼합물을 타설할 때에는, 씨지 필터 조성물의 혼합물은 자유 낙하로 쏟아 부으면 되므로, 다짐이 불필요하며(vibrating 불필요), 이렇게 씨지 필터 조성물의 혼합물을 다짐 없이 쏟아 부어 시공하더라도, 잔골재가 없는 엉긴 콘크리트(concrete)의 일종이므로 거푸집과 서포트에 작용 하중이 적은 효과가 있다.In addition, when pouring the mixture of the seed filter composition between the back surface of the retaining wall and the formwork during construction, the mixture of the filter filter composition can be poured by free fall, so no compaction is necessary (no vibrating), and thus the mixture of the filter filter composition Even if the construction is poured without compaction, it is a kind of concrete without fine aggregate (concrete), so there is less effect on the formwork and support load.

그리고 거푸집 및 서포트의 작은 변형으로 타설면 상태를 염려하지 않아도 되고, 씨지 필터 조성물의 혼합물의 일괄 타설이 아닌, 현장 여건에 맞게 여러 회 이어치기를 하더라도, 종, 횡으로의 이음의 발생(joint 발생)에 대한 염려가 없으며, 또, 배수대(filter재)의 강도가 다짐된 뒤채움용 흙 강도보다 강하므로 배수대의 변형에 대한 염려가 없고, 또, 그러한 배수대의 강도에 의해 옹벽 배면 및 상부에 구조물을 설치할 수 있다.The small deformation of the formwork and the support does not have to be concerned about the condition of the pour surface, and even if the plunging of the mixture of the sieving filter composition is carried out several times depending on the site conditions, it is possible to generate joints horizontally and horizontally (joint generation). There is no concern about), and since the strength of the filter material is stronger than the backfilled soil strength, there is no concern about the deformation of the drainage material. The structure can be installed.

또한, 이러한 시공 방법은, 기존의 뒤채움용 흙(성토 다짐재)과 필터재(골재)의 교대 반복 작업이 아니며, 작업 공간 확보로 뒤채움용 흙의 종 방향으로 다짐이 가능하고, 횡 방향 다짐보다 다짐 장비의 대형화와 시공성이 높으므로, 시공성 및 경제성의 증대와 균질하고 높은 다짐도를 얻을 수 있으며, 작업 시간의 단축과 기사용(중, 고재)의 거푸집 및 서포트 자재를 사용할 수 있어 경제적이다.In addition, such a construction method is not an existing repetitive work of alternating backfilling soil (fill compaction material) and filter material (aggregate), it is possible to compact in the longitudinal direction of the backfilling soil by securing the working space, the transverse direction Since the size and construction of compaction equipment is higher than compaction, it is possible to increase workability and economic feasibility, to obtain a homogeneous and high compaction degree, and it is economical because it can shorten working time and use formwork and support materials for technicians. .

아울러, 배수대의 균일한 단면과 설계요구 배수 능력으로, 배면 토압(수압)증가 요인을 제거하고, 다짐된 뒤채움용 흙(배면토) 하부로 침투수가 유입되는 것이 방지되어, 옹벽의 안정성을 확보할 수 있다.
In addition, the uniform cross-section of the basin and the design drainage capacity eliminate the factor of increasing the back ground pressure and prevent the infiltration water from entering the compacted backfill soil to ensure the stability of the retaining wall. can do.

또한, 상기 뒤채움용 흙의 종류나 필요에 따라, 배수대와 뒤채움용 흙 사이에는 부직포를 더 설치하여, 뒤채움용 흙이 배수대로 유입되어 배수 능력이 감소하는 것을 방지하는 효과가 있다.
In addition, according to the type or need of the backfilling soil, a non-woven fabric is further installed between the drainage pad and the backfilling soil, thereby preventing the backfilling soil from flowing into the drainage and reducing the drainage capacity.

도 1은 본 발명에 따라 시공된 옹벽과 그 뒤채움 구조를 보여주는 단면도.
도 2는 도 1의 A 부분에 따른 확대 단면도.
도 3은 도 1의 A 부분의 또 다른 공정 예시에 따른 확대 단면도.
도 4는 본 발명에 따라 옹벽 배면에 배수관과 거푸집이 설치된 구조를 보여주는 측단면도.
도 5는 본 발명의 시공 방법에 따른 공정도.
도 6은 종래 일반적인 옹벽의 뒤채움 설계 및 시공에 따른 구조를 보여주는 단면도.
도 7은 종래 일반적인 옹벽의 뒤채움 시공에 따른 문제점을 보여주는 단면도.1 is a cross-sectional view showing a retaining wall and its backfill structure constructed in accordance with the present invention.
2 is an enlarged cross-sectional view taken along the portion A of FIG.
3 is an enlarged cross-sectional view according to still another process example of the portion A of FIG.
Figure 4 is a side cross-sectional view showing a structure in which the drain pipe and the formwork is installed on the back wall retaining wall according to the present invention.
5 is a process chart according to the construction method of the present invention.
Figure 6 is a cross-sectional view showing a structure according to the backfill design and construction of a conventional general retaining wall.
Figure 7 is a cross-sectional view showing a problem according to the backfill construction of a conventional general retaining wall.

본 발명은 씨지 필터 조성물 및 그 씨지 필터 조성물을 이용한 옹벽의 붕괴 방지와 하자 방지 시공 방법에 관한 것으로, 시멘트, 골재, 물로 구성하는 씨지 필터(C/G filter) 조성물이 구비되어, 통상 구조의 옹벽 뒤쪽 하부에 배수관을 설치하고, 그 배수관을 포함하여 필요 및 설계 높이로 거푸집을 설치하며, 구비한 씨지 필터 조성물을 혼합하고, 그 씨지 필터 조성물의 혼합물을 거푸집과 옹벽 사이에 타설하며, 상기 타설된 씨지 필터 조성물의 혼합물을 양생하고, 거푸집이 제거되어, 씨지 필터 조성물이 배수대를 구성하며, 상기 배수대 후면에 일괄 다짐하도록 뒤채움용 흙을 포설하고, 다짐하면 시공을 용이하게 완료하며, 이렇게 적정 단면을 유지하는 배수대에 의해서, 배수를 용이하게 하고, 뒤채움 흙의 다짐으로 인해서 침투수의 유입을 최소화하며, 토압 및 수압의 감소로 옹벽의 붕괴나 하자를 방지하며, 옹벽의 안전성 및 안정성을 높은 것이다.
The present invention relates to a cage filter composition and a method for preventing collapse and retaining of the retaining wall using the cage filter composition, comprising a cage filter (C / G filter) composition composed of cement, aggregate, and water, and having a retaining wall of a general structure. Install a drain pipe at the rear lower part, install the formwork to the required and design height including the drain pipe, mix the provided sage filter composition, pour the mixture of the sage filter composition between the formwork and the retaining wall, The mixture of the sage filter composition is cured, the formwork is removed, the sage filter composition constitutes the sump, and the backfilling soil is laid on the rear of the sump, and the compaction is easily completed when it is compacted. The drainage basin maintains the proper cross section to facilitate drainage and minimize the ingress of water due to backfilling compaction. , The earth pressure and decrease in pressure, and prevent the collapse and let the retaining wall, is the high safety and stability of the retaining wall.

본 발명에 따른 씨지 필터 조성물과 그 씨지 필터 조성물을 이용한 옹벽의 붕괴 방지와 하자 방지 시공 방법을 순차로 설명하면 다음과 같다.When the sage filter composition according to the present invention and the method of preventing the collapse of the retaining wall and the defect prevention construction method using the sieving filter composition are described in order.

우선, 씨지 필터(C/G filter)(cement and gravel filter) 조성물은 시멘트(Cement), 골재, 물로 구성하고, 그 구성비에 따라 두 가지 실시예를 가지며, 씨지 필터 조성물의 첫 번째 실시예는 시멘트 1 중량부와 골재 6 중량부로 구성하고, w/c(물 시멘트 비)는 25 내지 35%로 구성하며, 첫 번째 실시예에서 바람직한 w/c는 30%이며, 그 혼합에 따른 씨지 필터 조성물을 혼합하여 양생하면, 약 90㎏／㎠ 의 강도를 가진다 First, the C / G filter (cement and gravel filter) composition is composed of cement, aggregate, and water, and has two embodiments depending on the composition ratio. The first embodiment of the sage filter composition is cement. 1 part by weight and 6 parts by weight of aggregate, w / c (water cement ratio) of 25 to 35%, the preferred w / c in the first embodiment is 30%, the sage filter composition according to the mixing When mixed and cured, it has an intensity of about 90 kg / cm 2.

그리고 씨지 필터 조성물의 두 번째 실시예는 시멘트 1 중량부와 골재 8 중량부로 구성하고, w/c(물 시멘트 비)는 35 내지 45%로 구성하며, 첫 번째 실시예에서 바람직한 w/c는 40%이며, 그 혼합에 따른 씨지 필터 조성물을 혼합하여 양생하면, 약 70㎏／㎠ 의 강도를 가진다.And the second embodiment of the seed filter composition is composed of 1 part by weight of cement and 8 parts by weight of aggregate, w / c (water cement ratio) is composed of 35 to 45%, the preferred w / c in the first embodiment is 40 %, When the seed filter composition according to the mixture is mixed and cured, it has a strength of about 70 kg / cm 2.

또한, 씨지 필터 조성물에 포함하는 골재는, 일반적인 골재로, 자갈, 쇄석, 순환 골재 중에서 구성하고, 그 크기는 25cm 내외를 가지는 것이 적절하다.In addition, the aggregate included in the sieving filter composition is a general aggregate, and is comprised among gravel, crushed stone, and circulating aggregate, and it is appropriate that the aggregate has a size of about 25 cm.

이렇게 두 가지 실시예로 구성하는 씨지 필터 조성물은 혼합되어, 골재 사이에 다공의 공극이 존재하고, 이 공극에 의해서 물을 거의 100％ 배수하는 구조를 가진다.
Thus, the filter filter composition constituted by the two embodiments is mixed, there is a pore of pores between the aggregate, and has a structure that drains water almost 100% by this pore.

이러한 씨지 필터 조성물을 이용한 옹벽의 붕괴 방지와 하자 방지 시공 방법을 설명하면 다음과 같다.
Referring to the construction method of preventing the collapse of the retaining wall and the defect prevention using such a seed filter composition as follows.

우선, 본 발명에 따른 시공에 앞서, 도4에 도시한 옹벽과 같이, 통상의 옹벽이 시공된 구조를 가지고, 이러한 옹벽은 콘크리트 타설 방법으로 시공된 옹벽이나, 단위 크기를 가지는 블록식 옹벽으로 시공된 옹벽이나, 또는 기타 방법으로 시공된 옹벽에 모두 적용할 수 있으며, 아울러, 본 발명에서 예시한 옹벽의 구조는 바닥에 대해 수직으로 형성된 수직 구조 옹벽이고, 그외에도, 상부로 갈수록 경사를 형성하는 경사 구조의 옹벽에도 적용할 수 있으며, 배수가 불량한 기존의 옹벽의 보수 및 보강 방법으로 사용할 수 있다.First, prior to the construction according to the present invention, as in the retaining wall shown in Figure 4, it has a structure in which a conventional retaining wall is constructed, such a retaining wall is constructed as a retaining wall constructed by a concrete placing method, or a block retaining wall having a unit size It can be applied to both retained walls or retained walls constructed by other methods, and the structure of the retaining walls exemplified in the present invention is a vertical structural retaining wall formed perpendicular to the floor, and in addition, to form a slope toward the top. It can be applied to retaining walls of inclined structure and can be used as a method of repairing and reinforcing existing retaining walls with poor drainage.

참고로, 도4에 도시한 바와 같이, 기존 옹벽 구조는 지면보다 하부에 위치한 기초부(610)와 지면 상부로 드러나는 옹벽(600)으로 구성한다.
For reference, as shown in FIG. 4, the existing retaining wall structure includes a base 610 positioned below the ground and a retaining wall 600 exposed to the upper portion of the ground.

그래서 본 발명에 따른 옹벽의 붕괴 방지와 하자 방지 시공 방법을, 도5의 공정도를 참고하여 순차로 설명하면, 먼저, 배수관 및 거푸집 설치 공정(S1)은, 도4에 도시한 바와 같이, 시공된 옹벽(600) 뒤쪽에, 배수관(200)을 위치하고, 그 배수관(200)을 포함하여 거푸집(300)을 필요 및 설계된 높이로 설치하는 공정으로, 배수관(200)은 유공관을 사용하고, 배수관(200)의 위치는 일반적인 옹벽(600) 뒤채움 구조에서의 위치와 대동소이하다.Thus, when the retaining wall collapse prevention and defect prevention construction method according to the present invention will be described in sequence with reference to the process diagram of Figure 5, first, the drain pipe and formwork installation step (S1), as shown in FIG. Located behind the retaining wall 600, the drain pipe 200 is located, and the formwork 300 is installed to the required and designed height including the drain pipe 200, the drain pipe 200 uses a perforated pipe, the drain pipe 200 The position of) is substantially the same as the position in the general retaining wall 600 backfill structure.

한편, 상기 배수관(200)이 기초부(610) 위에 놓이거나, 또는, 기초부(610)보다 높은 위치에 배수관(200)을 위치할 경우에는, 도4에 도시한 바와 같이, 기초부(610)에 콘크리트로 구성하는 추가기초부(611)를 별도로 더 구성하여 배수관(200)을 설치한다.On the other hand, when the drain pipe 200 is placed on the base portion 610, or when the drain pipe 200 is positioned at a position higher than the base portion 610, as shown in Figure 4, the base portion 610 ) Additional foundation portion 611 consisting of concrete is further configured to install a drain pipe (200).

그리고 도4에 도시한 바와 같이, 앞서 설치된 배수관(200)을 포함하여 거푸집(300)을 설치하되, 거푸집(300)은 옹벽(600)을 뒤쪽을 따라 필요 및 설계된 높이로 설치하고, 추가로, 거푸집(300)은 서포트(310)(동바리)로 지지하여, 안전성을 높이도록 하며, 거푸집(300)은 설치된 옹벽(600) 종류 및 구조, 환경 등을 고려하여 적절하게 설치한다.
And, as shown in Figure 4, the formwork 300 is installed, including the previously installed drainage pipe 200, the formwork 300 is installed in the retaining wall 600 to the required and designed height along the rear, further, The formwork 300 is supported by the support 310 (circle) to enhance safety, and the formwork 300 is appropriately installed in consideration of the installed retaining wall 600 type, structure, environment, and the like.

다음으로, 씨지 필터 조성물 혼합 및 타설 공정(S2)은, 앞서 설명한 씨지 필터 조성물을 혼합하고, 도4에 도시한 바와 같이, 그 씨지 필터 조성물의 혼합물(110)을 앞서 설치한 옹벽(600)과 거푸집(300) 사이로 타설하는 공정으로, 타설한 다음에는 별도로 다짐할 필요는 없다.
Next, the sieving filter composition mixing and placing step (S2), the sieving filter composition described above is mixed, and as shown in Figure 4, the retaining wall 600 and the mixture 110 of the sieving filter composition previously installed and In the process of pouring between the formwork 300, it is not necessary to squeeze separately after pouring.

이어지는, 양생 및 거푸집 탈형 공정(S3)은 앞서 타설된 씨지 필터 조성물을 일정 시간 양생한 다음, 설치된 거푸집(300)과 서포트(310)를 제거하는 공정이며, 이 과정으로, 도1 및 도2에 도시한 바와 같이, 거푸집(300)에 따른 단면을 유지하면서, 다공의 공극의 형성으로 배수 능력이 우수한 배수대(100)를 구성한다.
Subsequently, the curing and die demolding process (S3) is a process of curing the previously installed sieved filter composition for a predetermined time, and then removing the installed formwork 300 and the support 310, this process, in Figures 1 and 2 As shown in the figure, while maintaining the cross section along the formwork 300, the drainage table 100 excellent in the drainage capacity is formed by formation of porous voids.

그리고 부직포 설치 공정(S4)은, 도3에 도시한 바와 같이, 배수대(100)의 노출된 부분에 부직포(400)를 설치하는 공정으로, 배수대(100)를 따라 배수대(100) 상부에서 하부까지 부직포(400)를 늘어뜨려 부직포(400)를 설치하며, 이러한 부직포(400) 설치 여부는 뒤채움용 흙(500)의 종류에 따라 달라지는데, 뒤채움용 흙(500)이 세립토인 경우에는 부직포(400)를 설치하는 것이 좋으며, 부직포(400)에 의해 배수대(100)의 수명 연장과 성능을 유지할 수 있고, 뒤채움용 흙(500)이 다소 굵은 입자이거나, 조립토인 경우에는 도2에 도시한 바와 같이, 부직포(400)를 설치하지 않아도 무방하다.
In addition, as shown in FIG. 3, the nonwoven fabric installation step S4 is a step of installing the nonwoven fabric 400 in an exposed portion of the drainage basin 100, and the upper part of the drainage ramp 100 along the drainage basin 100. The nonwoven fabric 400 is laid down from the bottom to the nonwoven fabric 400, and whether the nonwoven fabric 400 is installed depends on the type of the backfilling soil 500, and the backfilling soil 500 is fine grained soil. It is preferable to install the nonwoven fabric 400, the nonwoven fabric 400 can maintain the life and extend the life of the drainage 100, the backfilling soil 500 is somewhat coarse particles, or in the case of granulated soil As shown in 2, the nonwoven fabric 400 may not be provided.

마지막으로, 뒤채움용 흙 포설 및 다짐 공정(S5)은, 도1에 도시한 바와 같이, 배수대(100) 후면에 뒤채움용 흙(500)을 포설하고, 뒤채움용 흙(500)을 규정대로 다짐하는 공정으로, 배수대(100) 후면에 뒤채움용 흙(500)을 설계된 높이로 포설하고, 뒤채움용 흙(500)을 규정대로 일괄 다짐하며, 이때, 배수대(100)는 높은 강도로 일정한 형태를 유지하고 있으므로, 뒤채움용 흙(500)을 다짐할 때는 일반적인 소형 장비는 물론, 장비의 대형화가 가능하다.Finally, the backfilling soil laying and compacting process (S5), as shown in Figure 1, the backfilling soil 500 is installed on the back of the drain 100, and the backfilling soil 500 In the process of compacting according to the regulations, the backfilling soil 500 is installed at the designed height at the rear of the drain 100, and the compaction of the backfilling soil 500 is prescribed according to the regulations. Since maintaining a constant form at a high strength, when compacting the backfilling soil 500, as well as general small equipment, it is possible to increase the size of the equipment.

그래서 기존 시공에서는 배수재(골재)의 설치와 흙 포설의 반복 교대 작업에 따른 간섭에 의한 시공성 저하와 품질 저하가 발생하였지만, 본 발명에 따른 시공 방법에서는 그러한 시공성 저하와 품질 저하가 발생하지 않으며, 경제적이고 적정 규격을 가지며, 고품질의 배수대(100)를 시공할 수 있으며, 또, 그러한 배수대(100) 구조에 의해서 옹벽(600)의 배면 배수가 매우 우수하다.Therefore, in the existing construction, the workability and quality deterioration due to the interference due to the installation of drainage (aggregate) and the repeated alternating work of the soil are generated, but in the construction method according to the present invention, such workability and quality deterioration do not occur, It is possible to construct a high-quality drainage basin 100 having a proper and proper standard, and the drainage of the retaining wall 600 is very excellent by the structure of the drainage basin 100.

또한, 옹벽(600)과 거푸집(300) 사이에 씨지 필터 조성물의 혼합물(110)을 타설한 다음, 양생을 거쳐 필요한 높이로 배수대(100)를 조성할 수 있으므로, 배수대(100)의 우수한 강도와, 균일한 단면을 유지하며, 뒤채움용 흙(500)을 타설, 다짐할 때에는, 기존과 달리 뒤채움용 흙(500)과 골재(10)를 같이 시공하지 않아도 되므로, 시공성이 우수하고, 기존의 시공 방법보다 침투수가 하부까지 유입될 우려가 적으므로, 옹벽(600)의 붕괴나 하자를 방지하고, 안전하고, 안전한 배수대(100)가 시공된다.In addition, since the mixture 110 of the siege filter composition is poured between the retaining wall 600 and the formwork 300, and the curing basin 100 can be formed at a required height after curing, Maintaining strength and uniform cross-section, and when pouring and compacting the backfilling soil 500, unlike the existing, it is not necessary to construct the backfilling soil 500 and the aggregate 10 together, and excellent workability Since the infiltration water is less likely to enter the lower part than the existing construction method, the retaining wall 600 is prevented from collapsing and defects, and a safe and safe drain 100 is constructed.

또, 배수대(100)와 뒤채움용 흙(500) 사이에 부직포(400)를 설치하면, 뒤채움용 흙(500)이 배수대(100)로 유입하여, 배수 능력이 감소하는 것을 방지하고, 또, 배수대(100) 수명을 단축하는 것을 방지한다.
In addition, if the non-woven fabric 400 is installed between the drain 100 and the backfilling soil 500, the backfilling soil 500 is introduced into the drainage 100, to prevent the drainage capacity is reduced In addition, the life of the drain 100 is prevented from being shortened.

아울러, 본 발명에 따른 몇 가지의 장점 및 효과를 정리하면 다음과 같다.In addition, the following are some of the advantages and effects of the present invention.

먼저, 시공 과정 중에 옹벽(600)과 서포트(310) 사이에 씨지 필터 조성물의 혼합물을 타설할 때, 자유 낙하로 쏟아 붓게 되므로, 다짐이 불필요하며(vibrating 불필요), 이렇게 다짐 없이 쏟아 부어도 잔골재가 없는 엉긴 콘크리트(concrete)의 일종이므로 서포트(310)과 서포트(310)에 작용하는 하중이 적으며, 또, 그 배수대(100)(filter재)의 강도가 뒤채움용 흙(500) 강도보다 강하므로 변형의 염려가 없고, 따라서, 도1에 도시한 바와 같이, 옹벽(600) 배면 및 상부에 별도의 구조물(620) 설치할 수 있다.First, when pouring the mixture of the filter filter composition between the retaining wall 600 and the support 310 during the construction process, since it is poured into free fall, compaction is unnecessary (vibrating unnecessary), fine aggregates are poured even if poured without compaction Since it is a kind of concrete without concrete, the load acting on the support 310 and the support 310 is less, and the strength of the sump 100 (filter material) is higher than that of the backfilling soil 500. Since it is strong, there is no fear of deformation, and therefore, as shown in FIG. 1, a separate structure 620 may be installed on the back and top of the retaining wall 600.

두 번째, 서포트(310) 및 서포트(310)의 작은 변형으로 타설면 상태를 염려하지 않아도 되며, 씨지 필터 조성물의 혼합물 타설이 일괄 타설이 아니고, 현장 여건에 맞게 여러 회 이어치기를 하더라도, 종, 횡으로의 이음의 발생(joint 발생)에 염려가 없다.Second, the support 310 and the small modification of the support 310 do not have to be concerned about the state of the pour surface, even if the pour mixture of the sieving filter composition is not a batch pour, but connected several times according to the site conditions, There is no concern about the generation of joints (joint generation) laterally.

세 번째, 기존 시공과 같은 뒤채움재(성토 다짐재)와 골재(filter재)의 교대 반복 작업이 아니며, 작업 공간 확보로 뒤채움용 흙의 종 방향으로 다짐이 가능하고, 횡 방향 다짐보다 다짐 장비의 대형화와 시공성이 높으므로, 시공성 및 경제성의 증대와 균질하고 높은 다짐도를 얻을 수 있다.Third, it is not a repetitive work of alternating backfill material (fill compaction material) and aggregate (filter material) like the existing construction, and it is possible to compact in the longitudinal direction of backfilling soil by securing working space, and compaction equipment rather than lateral compaction As the size and construction of the structure are high, the workability and economic efficiency can be increased, and a homogeneous and high compaction degree can be obtained.

네 번째, 작업 시간의 단축과 기사용(중, 고재)의 서포트(310) 및 서포트(310) 자재를 사용할 수 있어 경제적이다.Fourth, it is economical because the work time can be shortened and the support 310 and the support 310 materials for the driver (heavy and solid) can be used.

마지막으로, 배수대(100)의 균일한 단면과 설계 요구 배수 능력으로, 배면 토압(수압)증가 요인을 제거하고, 다짐된 뒤채움용 흙(배면토)의 하부로 침투수가 유입하는 것을 방지하여 옹벽(600)의 안정성이 확보된다.
Finally, the uniform cross section of the drainage basin 100 and the required drainage capacity of the design eliminate the factor of increasing the back ground pressure (hydraulic pressure) and prevent the infiltration water from flowing into the bottom of the compacted backfill soil (back soil). The stability of the retaining wall 600 is secured.

10 : 골재 100 : 배수대
200 : 배수관 300 : 거푸집
310 : 서포트 400 : 부직포
500 : 뒤채움용 흙 600 : 옹벽10: aggregate 100: drain
200: drain pipe 300: formwork
310: support 400: nonwoven fabric
500: backfilling soil 600: retaining wall

Claims (4)

옹벽과 뒤채움용 흙 사이에 물을 배수하기 위해 골재를 주재료로 하는 씨지 필터 조성물에 있어서,
상기 씨지 필터 조성물은 시멘트, 골재, 물로 구성하되,
시멘트 1 중량부와 골재 6 중량부로 구성하고, w/c는 25∼35%로 구성함을 특징으로 하는 씨지 필터 조성물.
In the sage filter composition whose aggregate is the main material for draining water between the retaining wall and the backfilling soil,
The filter filter composition is composed of cement, aggregate, water,
A cage filter composition, comprising 1 part by weight of cement and 6 parts by weight of aggregate, and comprising w / c of 25 to 35%.
옹벽과 뒤채움용 흙 사이에 물을 배수하기 위해 골재를 주재료로 하는 씨지 필터 조성물에 있어서,
상기 씨지 필터 조성물은 시멘트, 골재, 물로 구성하되,
시멘트 1 중량부와 골재 8 중량부로 구성하고, w/c는 35∼45%로 구성함을 특징으로 하는 씨지 필터 조성물.
In the sage filter composition whose aggregate is the main material for draining water between the retaining wall and the backfilling soil,
The filter filter composition is composed of cement, aggregate, water,
A cage filter composition, comprising 1 part by weight of cement and 8 parts by weight of aggregate, and comprising w / c of 35 to 45%.
통상 구조의 옹벽에 있어서,
청구항 1 또는 청구항2의 씨지 필터 조성물이 구비되어,
옹벽 뒤쪽 하부에 배수관을 설치하고, 그 배수관을 포함하는 거푸집을 설치하는 배수관 및 거푸집 설치 공정(S1);
앞서 구비한 씨지 필터 조성물을 혼합하고, 그 씨지 필터 조성물의 혼합물을 거푸집과 옹벽 사이에 타설하는 씨지 필터 조성물 혼합 및 타설 공정(S2);
앞서 타설된 씨지 필터 조성물의 혼합물을 양생하고, 거푸집을 제거하여, 씨지 필터 조성물이 배수대를 구성하는 양생 및 거푸집 탈형 공정(S3);
상기 배수대 후면에 뒤채움용 흙을 포설하고, 다짐하는 뒤채움용 흙 포설 및 다짐 공정(S5)으로 시공이 완료됨을 특징으로 하는 씨지 필터 조성물을 이용한 옹벽의 붕괴 방지와 하자 방지 시공 방법.
In the retaining wall of the normal structure,
Claim 1 or claim 2 is provided with the filter filter composition,
A drain pipe and a mold installation step of installing a drain pipe at a lower portion behind the retaining wall, and installing a formwork including the drain pipe;
A stage filter composition mixing and pouring process (S2) of mixing the above stage filter composition and pouring the mixture of the stage filter composition between the mold and the retaining wall;
Curing the mixture of the previously poured sage filter composition and removing the formwork, the curing and form demolding process (S3) in which the sieving filter composition constitutes the sump;
Installing the backfilling soil on the rear of the drainage, and the construction of the backfilling soil compaction and compaction process (S5) to the construction of the retaining wall using the sage filter composition, characterized in that the construction of the prevention and failure prevention construction method.
제 2항에 있어서,
상기 양생 및 거푸집 탈형 공정(S3) 후에는,
구성된 배수대의 상부에서 하부까지 부직포를 설치하는 부직포 설치 공정(S4)이 추가되어,
부직포에 의해 뒤채움용 흙이 배수대로의 유입을 방지함을 특징으로 하는 씨지 필터 조성물을 이용한 옹벽의 붕괴 방지와 하자 방지 시공 방법.The method of claim 2,
After the curing and die demolding process (S3),
Non-woven fabric installation process (S4) for installing the nonwoven fabric from the top to the bottom of the configured drainage is added,
A method of preventing collapse of a retaining wall and a defect prevention construction method using a sage filter composition, wherein the backfilling soil is prevented from flowing into a drain by a nonwoven fabric.
KR1020110011742A 2011-02-10 2011-02-10 the C/G filter composite and the construction method for collapse prevention and defect prevention of retaining wall therewith KR101070012B1 (en)

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CN102817366A (en) * 2012-08-13 2012-12-12 大同煤矿集团有限责任公司 Prevention and treatment method for full-mechanized caving mining collapse trap area water disaster for shallow-buried ultra-thick coal seam
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KR102249603B1 (en) * 2020-10-28 2021-05-10 주식회사 삼화켐 Retaining wall construction method

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KR101216801B1 (en) * 2012-01-10 2012-12-28 최봉훈 The concrete composition with filter performance
CN106761914B (en) * 2016-12-09 2017-11-03 西安科技大学 A kind of routed water water damage prevention and controls of shallow buried coal seam mine raceway groove flood

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CN102817366B (en) * 2012-08-13 2014-04-16 大同煤矿集团有限责任公司 Prevention and treatment method for full-mechanized caving mining collapse trap area water disaster for shallow-buried ultra-thick coal seam
CN104452780A (en) * 2014-09-18 2015-03-25 林连山 Prevention and treatment method for flash flood debris flow
KR102249603B1 (en) * 2020-10-28 2021-05-10 주식회사 삼화켐 Retaining wall construction method

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