KR20050029332A - Basic bottom permanent drainage structure using trench and drainage member and it's construction method - Google Patents

Basic bottom permanent drainage structure using trench and drainage member and it's construction method Download PDF

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KR20050029332A
KR20050029332A KR1020030065562A KR20030065562A KR20050029332A KR 20050029332 A KR20050029332 A KR 20050029332A KR 1020030065562 A KR1020030065562 A KR 1020030065562A KR 20030065562 A KR20030065562 A KR 20030065562A KR 20050029332 A KR20050029332 A KR 20050029332A
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trench
layer
drainage
gravel
installing
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KR100524136B1 (en
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장혁수
이정영
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시지이엔씨주식회사
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • 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
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0051—Including fibers
    • E02D2300/0054—Including fibers made from plastic
    • E02D2300/0057—PE
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0085—Geotextiles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

A base bottom permanent drainage structure using a trench and a drain member and a construction method thereof are provided to remove uplift pressure acting on an underground floor slab using the drain member and to function the trench as a safety device by primarily collecting infiltrated water to the trench. A base bottom permanent drainage structure using a trench(10) and a drain member(22) is composed of the trench formed by digging out a lower side of a building; a first civil engineering fiber layer(12) formed by primarily paving civil engineering fibers on the bottom surface of the trench; a first pebble layer(14) formed by primarily paving pebbles on the first civil engineering fiber layer; a perforated pipe(16) installed on the first pebble layer; a second pebble layer(18) formed by secondarily paving pebbles on the perforated pipe; a second civil engineering fiber layer(20) formed by secondarily paving civil engineering fibers on the bottom surface of the second pebble layer; the plate-shaped drain member mounted on the second civil engineering fiber layer; and a film layer(24) disposed on the plate-shaped drain member and paved with polyethylene.

Description

트렌치와 배수재를 이용한 기초바닥 영구배수 구조체 및 그의 구축방법{Basic bottom permanent drainage structure using trench and drainage member and it's construction method} Basic bottom permanent drainage structure using trench and drainage member and it's construction method}

본 발명은 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체 및 그의 구축방법에 관한 것으로, 특히 최하층 슬래브의 지하굴착 바닥면에 배수재를 설치하여 지하수압을 제거하고, 지하수압제거시 배수재로 유입된 침투수를 트렌치로 집수하고, 트렌치에 집수된 침투수는 다시 지하구조물내 집수정으로 집수하여 양수하도록 한 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체 및 그의 구축방법에 관한 것이다.The present invention relates to a foundation floor permanent drainage structure using a trench and drainage and its construction method, in particular, by installing a drainage on the underground excavation bottom surface of the lowermost slab to remove the groundwater pressure, when the groundwater pressure to remove the infiltration water introduced into the drainage trench The permeate collected in the trench and collected in the trench relates to a foundation bottom permanent drainage structure using a trench and drainage, which is collected and pumped back to the sump in the underground structure, and a method for constructing the same.

일반적으로 토목 및 지하구조물의 최종 바닥이 지하수위 하부에 설치될 경우에는 하강된 지하수위는 주변부 수위까지 원상 회복되려는 에너지가 발생되며, 이 에너지가 상부 지하구조물에 대하여 양압력으로 작용한다.In general, when the final floor of civil and underground structures is installed below the groundwater level, the lowered groundwater level generates energy to recover to the surrounding level, which acts as a positive pressure on the upper underground structure.

즉, 양압력은 지하구조물의 바닥부와 건물 주변부와의 수두차에 의해 발생되며, 정수압 개념에서의 양압력이란 피압 지하수가 수위면에 접하고 있는 지하구조물을 들어올리는 힘이라 정의할 수 있고, 그 크기는 일반적으로 지하수위 아래로 10M 깊이마다 1Tonf/㎡로 나타낸다.In other words, the positive pressure is generated by the head difference between the bottom of the underground structure and the periphery of the building, and the positive pressure in the hydrostatic pressure concept can be defined as the force that lifts the underground structure in contact with the water surface. The size is typically expressed as 1 Tonf / m2 for every 10M below ground level.

한편, 양압력이 지하 지하구조물에 미치는 영향을 살펴보면, 우선 양압력이 지하구조물의 정하중보다 클 경우(P > Wd){여기서 P=양압력(Tonf/㎡), Wd=건물 정하중(Tonf/㎡)}, 지하수위 하부에 축조된 지하구조물은 한쪽으로 기울던지 아니면 지하구조물에 균열이 발생되어, 최종적으로 파괴에 도달되며, 그 과정에서 지하수가 균열을 통하여 지하구조물 내로 유입됨에 따라 정신적, 물질적으로 막대한 피해를 입히게 된다.On the other hand, the effect of positive pressure on the underground structure, first, if the positive pressure is greater than the static load of the underground structure (P> Wd) {where P = positive pressure (Tonf / ㎡), Wd = static load of the building (Tonf / ㎡) )}, The underground structure built below the groundwater level is inclined to one side or cracks are generated in the underground structure, which finally leads to destruction, and in the process, the groundwater flows into the underground structure through the crack, mentally and physically. Inflicts massive damage.

예컨대, 건물의 단위 사하중이 3.5Tonf/㎡이고 건물 지하층이 자하수위 아래 6M에 설치되었을 경우, 양압력(P)=0.6Tonf/㎡ x 1.0m x 1.0m ÷ 1.0 = 6.0Tonf/㎡ 이고, 사하중(Wd)=3.5Tonf/㎡이므로, P(6.0Tonf/㎡) > Wd(3.5Tonf/㎡) 관계에서 양압력(P)이 건물 단위하중(Wd)보다는 2.5Tonf/㎡ 이 크므로, 균열의 발생 또는 지하수 유입에 따른 피해가 발생된다.For example, if the unit dead weight of the building is 3.5 Tonf / m2 and the basement of the building is installed at 6M below the self-water level, the positive pressure (P) = 0.6 Tonf / m2 x 1.0mx 1.0 m ÷ 1.0 = 6.0 Tonf / m2, and the dead load ( Since Wd) = 3.5Tonf / ㎡, the positive pressure (P) is 2.5Tonf / ㎡ larger than the building unit load (Wd) in the relationship of P (6.0Tonf / ㎡)> Wd (3.5Tonf / ㎡), so that cracking occurs. Or damage caused by the inflow of groundwater.

또한, 양압력이 지하 지하구조물의 정하중보다 작을 경우, 지하구조물의 파괴에 이르는 피해는 없을 것이나 지하수위 하부에 있는 지하구조물의 콘크리트의 열화, 부실 시공부위 또는 시공접합부 등의 약선대를 통해서 지하수 유입에 따른 직, 간접적인 피해가 유발된다.In addition, if the positive pressure is less than the static load of the underground structure, there will be no damage to the destruction of the underground structure, but the groundwater inflow through the weak ships such as the deterioration of the concrete of the underground structure below the groundwater level, the poor construction site or the construction joint. Direct or indirect damage is caused.

따라서, 현재 토목 및 건축현장에서는 양압력을 해소하기 위한 방법으로 지하구조물의 층수 또는 기초두께를 조정하는 상재하중 부과공법을 사용하거나, 건물 기초부에 락앵커(Rock anchor)를 설치하는 락앵커 설치공법 또는 건물 외곽부나 기초하부에 배수관을 설치하여 자연적인 양압력 제거를 유도하는 배수공법 등이 사용되고 있다. Therefore, in the current civil engineering and construction site, a load loading method that adjusts the number of floors or foundation thickness of underground structures as a method of releasing positive pressure, or installs a rock anchor at the foundation of the building A drainage method is used to induce natural positive pressure removal by installing a drainage pipe at the outside of the building or under the foundation.

우선, 상재하중 부과공법은 양압력을 극복하기 위한 수단으로 건물층수를 높이거나 건물 기초의 두께를 정상적인 경우보다 두껍게 축조하여 추가된 하중이 양압력을 억제토록 하였다.First of all, the load loading method is a means to overcome the positive pressure, so that the added load is suppressed by increasing the number of floors or making the thickness of the foundation more thick than normal.

상기한 상재하중 부과공법은 시공이 매우 간편하고 2차적인 문제가 유발되지 않는 장점이 있다.The above-mentioned load loading method has the advantage that the construction is very easy and does not cause secondary problems.

그러나, 상기한 바와 같은 상재하중 부과공법은 시공비가 많이 들고 중층일 경우에는 고도 제한에 따른 층간높이가 축소되며, 시공 후에 주변부의 지하수위가 낮아지면 공법 자체가 유명무실해 지는 것은 물론 지하수위가 예측치 보다 초과하여 상승할 경우에는 전혀 대책이 없고, 아울러 지하구조물 콘크리트의 완전 양생전에 발생되는 지하수압에 의한 지하구조물 파괴가 쉽게 일어나는 단점이 있다.However, in the case of the above-mentioned load imposing method, when the construction cost is high and the middle floor is lower, the height between floors is reduced according to the height restriction.When the groundwater level in the surrounding area is lowered after construction, the construction method itself becomes infamous and the groundwater level is estimated. If it rises more than there is no measure at all, and also there is a disadvantage that the destruction of the underground structure by the groundwater pressure generated before the complete curing of the underground structure concrete.

그리고, 락앵커 설치공법은 부족한 건물 하중만큼 기초부에 락앵커를 설치하여 건물이 뜨지 않도록 앵커방식을 사용하여 지반에 구조물을 고정시키는 공법이다.In addition, the lock anchor installation method is a method of fixing the structure to the ground using an anchor method so that the building does not float by installing the lock anchor on the foundation as much as the insufficient building load.

상기한 락앵커 설치공법은 지하구조물이 기초 암반과 일체화됨으로 부등침하를 방지할 수 있고, 지진 발생시에 건물 전도를 방지할 수 있는 장점이 있다.The above-described rock anchor installation method has an advantage that the structure is integrated with the base rock to prevent unequal settlement, and to prevent building conduction in the event of an earthquake.

그러나, 상기한 락앵커 설치공법은 락앵커의 완벽한 시공이 보장될 수 없고, 락앵커용 앵커설치 홀내 방수문제 및 PC강재가 부식되어 절단될 경우에 연차적으로 끊어짐에 의해 와해될 수 있으며, 아울러 시공비가 많이 들고 높은 지하수압에 의해 유, 무형의 피해가 지속적으로 발생되며, 특히 지하구조물 콘크리트의 수압에 의한 초기 파괴를 막지 못하는 단점이 있다.However, the above-described rock anchor installation method can not be guaranteed by the perfect construction of the lock anchor, it can be broken by the annual break when the PC anchor is corroded and cut waterproof problems in the anchor installation hole for the lock anchor, Construction costs are high and tangible and intangible damage is continuously generated by high groundwater pressure, and in particular, there is a disadvantage in that the initial destruction by the hydraulic pressure of the underground structure concrete cannot be prevented.

또한, 배수관 설치공법은 기초하부로 유입되는 지하수위를 양압력이 형성되지 않도록 일정간격으로 배치된 배수로를 통하여 모아 집수정으로 유도한 후 외부로 펌핑하는 공법이다.In addition, the drainage pipe installation method is a method of pumping the groundwater level flowing into the base bottom through the drainage channels arranged at regular intervals so as not to form a positive pressure, leading to the sump well and pumping it to the outside.

상기한 배수관 설치공법은 초기 투입비가 적게 들고, 지하구조물에 작용하는 침투수를 해소시켜 수압 파괴에 의한 폐해를 줄일 수 있는 장점이 있다.The drainage pipe installation method has a low initial input cost, there is an advantage that can reduce the damage caused by water pressure destruction by eliminating the infiltration water acting on the underground structure.

그러나, 상기한 배수관 설치공법은 상기에 기술한 장점이 있음에도 불구하고, 기초 저면이나 지하 벽체 외부에 설치되는 장치로써, 양압력 처리 미숙에 따른 기존 지하구조물의 파괴 및 전도시 이의 설치가 불가능하다는 단점이 있다.However, although the above-described drain pipe installation method has the advantages described above, it is a device that is installed on the bottom of the foundation or the outside of the basement wall, and it is impossible to destroy the existing underground structure due to immaturity of the positive pressure treatment and its installation is impossible. There is this.

즉, 상기한 바와 같은 종래의 양압력 해소방법들은 과다한 공사비의 추가부담이 있으며 양압력을 필요에 따라 효율적으로 조절하기 어렵고, 인근에서의 지하수위 상승요인이 발생될 경우에 기 설치된 공법이 쓸모 없게 될 뿐만 아니라, 지하수압 변화에 따라 바닥 및 벽체에 균열이 발생된 기존 구조물의 안정성 회복 및 복원은 불가능한 문제점이 있다.In other words, the conventional positive pressure releasing methods as described above have an excessive burden of additional construction cost, and it is difficult to efficiently control the positive pressure as necessary, and the existing method is useless when a factor of groundwater level rise occurs in the vicinity. In addition, there is a problem in that it is impossible to restore and restore the stability of the existing structure in which cracks are generated on the floor and walls according to the groundwater pressure change.

이에, 본 발명은 상기한 바와 같은 제문제점을 해결하기 위해 안출된 것으로써, 기초바닥 아래에 판형배수재 포설 및 트렌치를 형성하고, 트렌치 내에 유공관을 설치하여 건축물 내로 유입되는 지하수를 집수정으로 모아 양수하여 지하수의 유압으로 기초바닥에 작용하는 양압력을 제거하도록 한 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체 및 그의 구축방법을 제공하는데 그 목적이 있다. Therefore, the present invention has been devised to solve the problems described above, and form a plate drainage and trench under the foundation floor, install a perforated pipe in the trench to collect the groundwater flowing into the building into the water collection well pumping The purpose of the present invention is to provide a foundation floor permanent drainage structure using a trench and drainage to remove the positive pressure acting on the foundation floor by hydraulic pressure of the groundwater, and a construction method thereof.

상기한 목적을 달성하기 위한 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체는 건축물내 하부를 굴착하여 형성된 트렌치와; 상기 트렌치 바닥면에 토목섬유가 1차 포설되어 형성된 제1토목섬유층과; 상기 제1토목섬유층상에 자갈이 1차로 포설되어 형성된 제1자갈층과; 상기 제1자갈층상에 설치된 유공관과; 상기 유공관상에 자갈이 2차로 포설되어 형성된 제2자갈층과; 상기 제2자갈층의 바닥면에 토목섬유가 2차로 포설되어 형성된 제2토목섬유층과; 상기 제2토목섬유층상에 설치된 판형배수재와; 상기 판형배수재상에 설치된 폴리에틸렌 필름이 포설되어 형성된 필름층으로 구성됨을 특징으로 한다.A foundation floor permanent drainage structure using a trench and drainage material according to the present invention for achieving the above object is a trench formed by excavating the lower part of the building; A first geotechnical fiber layer formed by first laying geotextiles on the trench bottom surface; A first gravel layer formed by first laying gravel on the first civil fiber layer; A hole tube installed on the first gravel layer; A second gravel layer formed by secondaryly installing gravel on the hole tube; A second geotextile layer formed by secondary installation of geotextiles on the bottom surface of the second gravel layer; A plate drainage material installed on the second civil fiber layer; The polyethylene film is installed on the plate drainage is characterized in that consisting of a film layer formed.

또한, 상기한 목적을 달성하기 위한 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체 구축방법은 건축물내 하부를 굴착하여 트렌치를 형성하는 단계; 상기 트렌치내 바닥면에 토목섬유를 1차로 포설하여 제1토목섬유층을 형성하는 단계; 상기 제1토목섬유층상에 자갈을 1차로 포설하여 제1자갈층을 형성하는 단계; 상기 제1자갈층상에 유공관을 설치하는 단계; 상기 유공관상에 자갈을 2차 포설하여 제2자갈층을 형성하는 단계; 상기 제2자갈층의 바닥면에 토목섬유를 2차로 포설하여 제2토목섬유층을 형성하는 단계; 상기 제2토목섬유층상에 판형배수재를 설치하는 단계; 상기 판형배수재상에 폴리에틸렌 필름을 설치하는 단계를 순차적으로 시행함을 특징으로 한다.In addition, the method for constructing a foundation floor permanent drainage structure using a trench and drainage material according to the present invention for achieving the above object comprises the steps of excavating the lower portion in the building to form a trench; Forming a first geotextile layer by first installing geotextiles on the bottom surface of the trench; Laying gravel on the first geosynthetic fiber layer to form a first gravel layer; Installing a hole on the first gravel layer; Second installation of gravel on the hole tube to form a second gravel layer; Laying geotextiles on the bottom surface of the second gravel layer to form a second geotextile layer; Installing a plate type drainage material on the second civil fiber layer; Characterized in that the step of sequentially installing the polyethylene film on the plate drainage.

이하, 본 발명을 첨부한 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

도 1은 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체를 도시한 대표도이며, 도 2는 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체를 도시한 단면도1이며, 도 3은 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체를 도시한 단면도2이며, 도 4는 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체를 도시한 단면도3이다. 1 is a representative view showing a foundation floor permanent drainage structure using a trench and drainage according to the present invention, Figure 2 is a cross-sectional view 1 showing a foundation floor permanent drainage structure using a trench and drainage according to the present invention, Figure 3 FIG. 2 is a cross-sectional view illustrating the foundation bottom permanent drainage structure using the trench and the drainage according to the present invention, and FIG. 4 is a cross-sectional view illustrating the foundation bottom permanent drainage structure using the trench and the drainage according to the present invention.

이들 도면에 도시된 바와 같이, 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체는 건축물내 하부를 굴착하여 형성된 트렌치(10)와; 상기 트렌치(10) 바닥면에 토목섬유가 1차 포설되어 형성된 제1토목섬유층(12)과; 상기 제1토목섬유층(12)상에 자갈이 1차로 포설되어 형성된 제1자갈층(14)과; 상기 제1자갈층(14)상에 설치된 유공관(16)과; 상기 유공관(16)상에 자갈이 2차로 포설되어 형성된 제2자갈층(18)과; 상기 제2자갈층(18)의 바닥면에 토목섬유가 2차로 포설되어 형성된 제2토목섬유층(20)과; 상기 제2토목섬유층(20)상에 설치된 판형배수재(22)와; 상기 판형배수재(22)상에 설치된 폴리에틸렌 필름이 포설되어 형성된 폴리에틸렌 필름층(24)으로 구성된다.As shown in these figures, the foundation floor permanent drainage structure using a trench and drainage according to the present invention includes a trench 10 formed by excavating the lower part of the building; A first geotextile layer (12) formed by first installing geotextiles on the bottom surface of the trench (10); A first gravel layer 14 formed by first installing gravel on the first geotextile layer 12; A hole tube 16 installed on the first gravel layer 14; A second gravel layer 18 formed by secondaryly installing gravel on the hole tube 16; A second geotextile layer (20) formed by secondary geotextiles laid on the bottom surface of the second gravel layer (18); A plate drainage material 22 disposed on the second geotextile layer 20; It consists of a polyethylene film layer 24 formed by laying a polyethylene film provided on the plate drainage 22.

이하, 상기한 바와 같은 구성으로 이루어진 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체의 구축에 대하여 설명한다. Hereinafter, the construction of the foundation floor permanent drainage structure using the trench and the drainage material according to the present invention having the configuration as described above will be described.

본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체 구축방법은 건축물내 하부를 굴착하여 트렌치(10)를 형성하는 단계; 상기 트렌치(10)내 바닥면에 토목섬유를 1차로 포설하여 제1토목섬유층(12)을 형성하는 단계; 상기 제1토목섬유층(12)상에 자갈을 1차로 포설하여 제1자갈층(14)을 형성하는 단계; 상기 제1자갈층(14)상에 유공관(16)을 설치하는 단계; 상기 유공관(16)상에 자갈을 2차 포설하여 제2자갈층(18)을 형성하는 단계; 상기 제2자갈층(18)의 바닥면에 토목섬유를 2차로 포설하여 제2토목섬유층(20)을 형성하는 단계; 상기 제2토목섬유층(20)상에 판형배수재(22)를 설치하는 단계; 상기 판형배수재(22)상에 폴리에틸렌 필름을 설치하여 폴리에틸렌 필름층(24)을 형성하는 단계를 순차적으로 시행함을 특징으로 한다.Method for constructing a foundation floor permanent drainage structure using a trench and drainage according to the present invention comprises the steps of forming a trench 10 by excavating the lower part in the building; Forming a first geotextile layer (12) by first installing geotextiles on the bottom surface of the trench (10); Laying first gravel on the first geosynthetic fiber layer 12 to form a first gravel layer 14; Installing a hole tube (16) on the first gravel layer (14); Secondary laying gravel on the hole tube 16 to form a second gravel layer 18; Forming a second geotextile layer (20) by secondaryly installing geotextiles on the bottom surface of the second gravel layer (18); Installing a plate drainage material (22) on the second geotextile layer (20); The polyethylene film is installed on the plate drainage 22 to form a polyethylene film layer 24.

이하, 상기한 바와 같은 단계별로 시공하는 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체 구축방법을 단계별로 나누어서 상세히 설명한다.Hereinafter, the method for constructing the foundation floor permanent drainage structure using the trench and the drainage material according to the present invention, which will be constructed in stages as described above, will be described in detail step by step.

트렌치(10) 형성단계는 건축굴착 깊이까지 굴착한 후 트렌치(10) 굴착을 추가로 시행하고, 트렌치(10)의 형상은 기초 시공 기준면까지 굴착 후 트렌치(10)를 굴착하며, 트렌치(10) 굴착은 토공사 공정에 포함된다. The trench 10 forming step is to excavate to the depth of the construction excavation and then additionally excavate the trench 10, and the shape of the trench 10 excavates the trench 10 after excavating to the foundation construction reference plane, and the trench 10 Excavation is involved in the earthworks process.

제1토목섬유층(12) 형성단계는 트렌치(10)내 하부에 굴착 잔여물에 의해 토목섬유가 파단되지 않도록 유의하면서, 토목섬유의 이음길이는 최소 10cm이상 되도록 겹이음 시공한다. In the step of forming the first geosynthetic fiber layer 12, the geosynthetic fiber is constructed so that the joint length of the geosynthetic fiber is at least 10 cm, while not being broken by the excavation residue in the lower portion of the trench 10.

제1자갈층(14) 형성단계는 트렌치(10)내에 포설하는 자갈은 이물질을 제거한 균일하고 깨끗하게 세척된 40mm-2.5mm의 자갈사용을 원칙으로 하고, 제1자갈층(14)은 유공관(16)의 설치를 위한 레벨 조정을 목적으로 하며, 트렌치(10) 바닥에서 약 200mm 정도 인력작업으로 트렌치(10) 내에 포설한다. In the step of forming the first gravel layer 14, the gravel laid in the trench 10 is in principle to use 40 mm-2.5 mm of gravel that is uniformly and cleanly removed from foreign matters, and the first gravel layer 14 is formed of the perforated pipe 16. For the purpose of level adjustment for the installation, it is laid in the trench 10 by a manpower about 200mm from the bottom of the trench 10.

유공관(16) 설치단계는 플라스틱 케이블 타이나 테이프, 비닐끈 등으로 70cm간격으로 유공관(16)을 결속하며 이물질의 유입과 파손에 주의하고, 유공관(16)의 접합은 죠인트 소켓(P.V.C, P.E관)으로 본당(4.5m) 1개 사용하며, 죠인트 소켓은 길이 30cm로서 양쪽에서 유공관(16)의 결속된 다발이 각각 15cm씩 삽입되도록 한다. (죠인트 소켓의 길이는 직경에 따라 결정된다.) The perforated pipe (16) installation step is to bind the perforated pipe (16) at a distance of 70 cm with a plastic cable tie, tape, vinyl string, etc., and pay attention to the inflow and damage of foreign matters. ), One joint hall (4.5m) is used, and the joint socket is 30cm in length so that the bundled bundles of the perforated pipes 16 on each side are inserted by 15cm. (The length of the joint socket is determined by the diameter.)

또한, 상기 유공관(16)을 직경별로 결속시 관 내부에 이물질이 들어가지 않도록 토목섬유로 보호하여야 하며, 최소 이음길이는 10cm 이상 되도록 겹이음 하며, 결속시 부주의로 인해 파손되지 않도록 하며, 유공관 설치시 구배는 무구배를 원칙으로 한다. In addition, when the perforated tube 16 is bound by diameter, it should be protected with civil fiber to prevent foreign matter from entering into the inside of the tube, and the minimum joint length should be overlapped to be 10 cm or more. As a rule, city grades are non-gradient.

죠인트 칼라는 PVC 또는 PE관(내경 150mm)을 사용하고, 죠인트 연결 완료후 죠인트 연결부의 보호를 위해 토목섬유로 결속한다. The joint collar is made of PVC or PE pipe (150mm inside diameter), and after completion of the joint connection, it is bonded with geotextile to protect the joint connection.

제2자갈층(18) 형성단계는 1차로 포설 형성된 제1자갈층(14)의 자갈 규격과 동일한 자갈을 사용하며, 2차 자갈포설시 우선적으로 죠인트와 유공관(16)의 중간 부위에 자갈을 포설하여 유공관(16)이 유동되지 않도록 하고, 유공관(16)의 유동이나 손상에 유의하여 설계높이까지 포설하며, 포설 작업시 유공관(16) 내부에 콘크리트, 토사 등 이물질이 투입되지 않도록 유공관(16)의 선단부 보호에 특별히 주의하여야 한다.In the step of forming the second gravel layer 18, the same gravel as the gravel standard of the first gravel layer 14 formed in the first installation is used, and when the secondary gravel is laid, the gravel is preferentially installed in the middle part of the joint and the perforated pipe 16. To prevent the perforated pipe 16 from flowing, install the design height by paying attention to the flow or damage of the perforated pipe 16, and to prevent foreign substances such as concrete and earth and sand into the perforated pipe 16 during the installation work. Particular attention is to be paid to the protection of the tip.

제2토목섬유층(20) 형성단계는 2차로 토목섬유를 포설하되, 토목섬유 포설은 판형배수재(22) 설치시 거칠은 토공면에 의한 판형배수재(22)의 파손방지 및 세립토의 유입으로 인한 트렌치(10) 및 유공관(16)의 막힘을 방지하는데 목적이 있다.In the forming step of the second civil fiber layer 20, the civil fiber is laid in the second step, but the civil fiber is laid in the trench due to the prevention of breakage of the plate drainage 22 due to the rough earth surface when the plate drainage 22 is installed and the inflow of fine soil. (10) and the purpose of preventing the clogging of the perforated pipe (16).

판형배수재(22) 설치단계는 판형배수재(22)의 설치는 두께1cm, 폭30cm을 표기된 일정 간격으로 설치하고, 구배없이 설치하며 판형배수재(22)를 최소 10cm이상 트렌치(10)내에 근입 하도록 하며, 상기 판형배수재(22) 연결시에는 연결부위를 반드시 보호 처리하여 이물질이 들어가지 않도록 처리한다. The plate drainage 22 installation step is to install the plate drainage 22 at a predetermined interval of 1cm thick, 30cm wide, installed without a gradient, to install the plate drainage 22 in the trench 10 at least 10cm or more. When the plate drainage 22 is connected, the connection part must be protected to prevent foreign substances from entering.

폴리에틸렌 필름층(24) 형성단계는 두께 0.1mm의 폴리에틸렌 필름을 2겹 사용을 원칙으로 하고, 최소 10cm이상 이중 겹이음을 하여 겹이음 부위를 보호(탭핑) 처리하며, 바닥슬래브 타설시 폴리에틸렌 필름층(24)이 파손되어 시멘트 페이스트가 유입되지 않도록 유의하고 폴리에틸렌 필름층(24) 파손시 반드시 보수 후 바닥슬래브를 타설한다.The polyethylene film layer 24 is formed by using two layers of polyethylene film having a thickness of 0.1 mm in principle, and double layering of at least 10 cm to protect (tap) the overlapped portion, and to remove the polyethylene film layer during floor slab casting. Care should be taken to prevent the cement paste from entering due to breakage of the (24), and in case of damage to the polyethylene film layer 24, the bottom slab must be poured after repair.

이상에서 설명한 바와 같이, 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체 및 그의 구축방법은 토사층 및 암반층 모든 지반조건에 대하여 시공이 용이하고, 배수재를 이용하여 지하층 바닥슬래브에 작용하는 양압력을 제거하고, 양압력제거와 동시에 배수재로 유입된 침투수를 트렌치를 설치하여 충분한 단면의 트렌치에 침투수를 1차 집수함으로써 트렌치가 안전장치 역할을 하며, 트렌치로 유도된 침투수는 2차로 지하구조물내 집수정으로 집수하여 양수처리함으로서 경제성 및 안전성 그리고 시공성을 겸비할 수 있는 이점이 있다.As described above, the foundation floor permanent drainage structure using the trench and drainage according to the present invention, and its construction method is easy to construct for all soil conditions of the soil layer and rock layer, the positive pressure acting on the basement floor slab using the drainage The trench acts as a safety device by collecting the infiltration water introduced into the drainage at the same time as the positive pressure is removed and collecting the infiltration water in the trench of sufficient cross-section. By collecting and pumping water into the sump in the structure, there is an advantage that can combine economic feasibility, safety and constructability.

도 1은 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체1 is a foundation bottom permanent drainage structure using a trench and drainage according to the present invention

를 도시한 대표도,Representative, showing

도 2는 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체Figure 2 is a foundation bottom permanent drainage structure using a trench and drain in accordance with the present invention

를 도시한 단면도1,1,

도 3은 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체Figure 3 is a foundation bottom permanent drainage structure using a trench and drain in accordance with the present invention

를 도시한 단면도2,2, showing

도 4는 본 발명에 따른 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체Figure 4 is a foundation bottom permanent drainage structure using a trench and drain in accordance with the present invention

를 도시한 단면도3. Sectional view showing 3.

-도면의 주요부분에 대한 부호의 설명-Explanation of symbols on the main parts of the drawing

10 : 트렌치 12 : 제1토목섬유층10: trench 12: first geotextile layer

14 : 제1자갈층 16 : 유공관14: first gravel floor 16: merit pavilion

18 : 제2자갈층 20 : 제2토목섬유층18: second gravel layer 20: second civil fiber layer

22 : 판형배수재 24 : 폴리에틸렌 필름층22: plate drainage material 24: polyethylene film layer

Claims (3)

건축물내 하부를 굴착하여 형성된 트렌치와;A trench formed by excavating a lower part of the building; 상기 트렌치 바닥면에 토목섬유가 1차 포설되어 형성된 제1토목섬유층과;A first geotechnical fiber layer formed by first laying geotextiles on the trench bottom surface; 상기 제1토목섬유층상에 자갈이 1차로 포설되어 형성된 제1자갈층과;A first gravel layer formed by first laying gravel on the first civil fiber layer; 상기 제1자갈층상에 설치된 유공관과;A hole tube installed on the first gravel layer; 상기 유공관상에 자갈이 2차로 포설되어 형성된 제2자갈층과;A second gravel layer formed by secondaryly installing gravel on the hole tube; 상기 제2자갈층의 바닥면에 토목섬유가 2차로 포설되어 형성된 제2토목섬유층과; A second geotextile layer formed by secondary installation of geotextiles on the bottom surface of the second gravel layer; 상기 제2토목섬유층상에 설치된 판형배수재와;A plate drainage material installed on the second civil fiber layer; 상기 판형배수재상에 설치된 폴리에틸렌 필름이 포설되어 형성된 필름층으로 구성됨을 특징으로 하는 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체.Permanent drainage structure using a trench and drainage, characterized in that consisting of a film layer formed by laying the polyethylene film installed on the plate drainage. 제 1항에 있어서, The method of claim 1, 상기 필름층의 두께 0.1mm의 폴리에틸렌 필름을 2겹으로 하고, 최소 10cm이상 이중 겹이음을 하여 겹이음 부위를 보호(탭핑) 처리함을 특징으로 하는 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체.The base layer permanent drainage structure using a trench and drainage, characterized in that the two layers of polyethylene film of 0.1mm thickness of the film layer, and at least 10cm or more double lap joint to protect (tap) the lap joint. 건축물내 하부를 굴착하여 트렌치를 형성하는 단계;Excavating the lower part of the building to form a trench; 상기 트렌치내 바닥면에 토목섬유를 1차로 포설하여 제1토목섬유층을 형성하는 단계;Forming a first geotextile layer by first installing geotextiles on the bottom surface of the trench; 상기 제1토목섬유층상에 자갈을 1차로 포설하여 제1자갈층을 형성하는 단계;Laying gravel on the first geosynthetic fiber layer to form a first gravel layer; 상기 제1자갈층상에 유공관을 설치하는 단계;Installing a hole on the first gravel layer; 상기 유공관상에 자갈을 2차 포설하여 제2자갈층을 형성하는 단계;Second installation of gravel on the hole tube to form a second gravel layer; 상기 제2자갈층의 바닥면에 토목섬유를 2차로 포설하여 제2토목섬유층을 형성하는 단계;Laying geotextiles on the bottom surface of the second gravel layer to form a second geotextile layer; 상기 제2토목섬유층상에 판형배수재를 설치하는 단계;Installing a plate type drainage material on the second civil fiber layer; 상기 판형배수재상에 폴리에틸렌 필름을 설치하여 폴리에티렌 필름층을 형성하는 단계를 순차적으로 시행함을 특징으로 하는 트렌치와 배수재를 이용한 기초바닥 영구배수 구조체 구축방법.A method of constructing a permanent bottom structure using a trench and a drainage, characterized in that the step of forming a polystyrene film layer by installing a polyethylene film on the plate drainage in sequence.
KR10-2003-0065562A 2003-09-22 2003-09-22 Basic bottom permanent drainage structure using trench and drainage member and it's construction method KR100524136B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100804066B1 (en) * 2007-03-13 2008-02-18 에스케이건설 주식회사 Drainage structure for artificial ground enabling efficient water drain and improving structure strength of the artificial ground
CN107012893A (en) * 2017-05-04 2017-08-04 民族建设集团有限公司 A kind of basement bottom wall board post poured band waterproof construction and its construction method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101039263B1 (en) 2008-08-19 2011-06-07 서울메트로 The transfer canal of the underground water which flows out
KR102373589B1 (en) 2021-09-13 2022-03-14 주식회사 플러스원 Leakage prevention drainage structure and drainage pipe repair method using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100804066B1 (en) * 2007-03-13 2008-02-18 에스케이건설 주식회사 Drainage structure for artificial ground enabling efficient water drain and improving structure strength of the artificial ground
CN107012893A (en) * 2017-05-04 2017-08-04 民族建设集团有限公司 A kind of basement bottom wall board post poured band waterproof construction and its construction method

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