KR20160144134A - The Construction Method of Continuous soil cement a Pile Walls - Google Patents

The Construction Method of Continuous soil cement a Pile Walls Download PDF

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Publication number
KR20160144134A
KR20160144134A KR1020150080508A KR20150080508A KR20160144134A KR 20160144134 A KR20160144134 A KR 20160144134A KR 1020150080508 A KR1020150080508 A KR 1020150080508A KR 20150080508 A KR20150080508 A KR 20150080508A KR 20160144134 A KR20160144134 A KR 20160144134A
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KR
South Korea
Prior art keywords
ground
stress
wall
type cutter
stress members
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Application number
KR1020150080508A
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Korean (ko)
Inventor
추중팔
Original Assignee
한미기초기술 주식회사
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Priority to KR1020150080508A priority Critical patent/KR20160144134A/en
Publication of KR20160144134A publication Critical patent/KR20160144134A/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/03—Prefabricated parts, e.g. composite sheet piles
    • E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/18—Bulkheads or similar walls made solely of concrete in situ
    • E02D5/187—Bulkheads or similar walls made solely of concrete in situ the bulkheads or walls being made continuously, e.g. excavating and constructing bulkheads or walls in the same process, without joints

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Abstract

The present invention discloses a continuous wall construction method of soil cement using a chain-type cutter. The present invention relates to a method of constructing a continuous wall construction method using a chain type cutter in which stress materials inserted into the ground are connected by a reinforcing material, While securing the structural stability while maintaining a wide width in the lateral direction, reducing the amount of the stress material used, thereby enabling economical construction and shortening the construction period.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous wall construction method and a continuous wall construction method,

The present invention relates to a technique for constructing a continuous wall in a ground using a chain-type cutter, and more particularly, to a method for constructing a continuous wall by using a chain type cutter, In the construction of continuous wall filled with mixed gel type soil cement, by connecting the stressed materials inserted into the ground to the reinforcing material, it is possible to secure the structural stability while widening the gap between the stressed materials. Cement underground continuous wall construction method.

Generally, the continuous wall construction of soil cement using a chain-type cutter is performed by a trench cutting re-mixing deep wall method. Such a TRD method is applied to excavation equipment 200 , The chain type cutter 201 of the construction equipment continuously forms the wall construction space A at a predetermined depth in the ground along the excavated ground, and the wall construction space A (Eg, H-beam) 300 is densely inserted to maintain a gap of about 1.0 m, and then the gap is filled with gel cement mixed with the soil gravel in the site to construct the continuous wall 40 Such a method is disclosed in Patent Publication No. 10-0255488 (filed on Feb. 23, 2000), Patent No. 10-0451962 (filed on September 30, 2004), Patent No. 10-0476871 Patent Registration No. 10-0953324 (registered on Apr. 4, 2010), 10-1360027 (Registration date 2014.02.03), and Published patent publication No. 10-2009-0036746 (Publication date 2009.04.15).

That is, the TRD method as described above can be applied safely because the construction equipment is designed with a low center of gravity and the height of the construction equipment is remarkably low, and it is possible to carry out the construction with high precision, and it is possible to carry out the construction with high accuracy from straightness and verticalness, In addition to economical construction, it is possible to reduce costs by excavating and agitating ability. In addition, it can mix and mix all the vertical direction layers simultaneously. Therefore, The walls can be made up, down, left, and right so that the wall structure can be formed with high continuity and homogeneity.

However, in the conventional continuous wall construction method, when the gap L1 of the stress material 100 is wide as shown in FIG. 3, the center of the wall body 40 is moved while a warp phenomenon B occurs due to the earth pressure , Which causes a problem in terms of structural stability.

Therefore, when the gap of the stress material is narrowly set, it is not only an uneconomical problem that requires a large amount of cost due to the excessive use of the stress material, but also has a disadvantage that the workability is decreased and the disclosure period is prolonged.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the conventional problems as described above, and it is an object of the present invention to provide an apparatus and a method for constructing a structure, The present invention has been made to provide a continuous wall construction method of soil cement underground using a chain type cutter which can reduce the construction period and shorten the construction period.

Another object of the present invention is to provide a method of manufacturing a cement mortar composition which, when applied to a soil having a weak cohesive force such as a clay layer, additionally inserts a predetermined reinforcing aggregate such as sand together with cement through a chain- The present invention provides a continuous wall construction method of soil-cement underground using a chain-type cutter capable of widening a gap between stressed materials without being wasted.

It is still another object of the present invention to provide a slant measuring device on one side of a chain type cutter and form a wall construction space in a state where a chain type cutter is vertically installed when digging the ground using an excavation equipment, The present invention also provides a continuous cement underground continuous wall construction method using a chain type cutter that allows the stress agent to maintain verticality.

In order to accomplish the above object, there is provided a continuous cement floor continuous wall construction method using a chain type cutter, comprising: a first step of vertically excavating a floor using a chain type cutter; A second step of successively constructing a wall installation space having a predetermined depth from the ground along the ground excavated from the first process; A third step of horizontally inserting a stress material into the wall space while maintaining a gap of 1.5 to 2.0 m inside the wall space when the wall space is installed in the ground by the second step; A fourth step of connecting the stressed materials to the reinforcements while maintaining a gap of 1.5 to 2.0 m in the ground from the third step; And a fifth step of filling the wall construction space with the gel-like cement mixed with the soil gypsum in the state where the stress material and the reinforcing material connecting the stress materials are connected to construct a continuous wall; .

In the present invention, in the case where the wall is applied to the ground where the cohesive force of the gypsum is weak, such as the clay layer, the reinforcing aggregate is additionally supplied together with the cement through the chain type cutter in addition to the soil gypsum, So that the gap between the stress members can be widely applied.

The present invention is also characterized in that a slope measuring device is additionally provided on one side of the chain type cutter to form a wall construction space with the chain type cutter vertically installed when excavating the ground using excavation equipment, The stress applied to the space can be maintained in the vertical direction.

Further, the reinforcing member is a mesh net or a grid which is welded and fixed to the inside of the stress members to connect the stress members.

In addition, the stress members connected to each other by the reinforcing member are configured to be maintained at a constant interval (e.g., 1.8M or more) by the spacer for maintaining spacing.

In addition, the connecting member is a reinforcing bar or wire which is connected to one end of the stress members in an X-direction or horizontally.

Further, the reinforcing member is a mesh net or a grid which is welded to the outside of the stress members to connect the stress members and keep the spacing constant.

In addition, the reinforcing material is a mesh net or a grid which is welded and fixed to the inside of the stressed materials to join the stressed materials, and the mesh net or the grid has a multi-layered structure for keeping the spacing of the stressed materials constant.

Further, the connecting material is reinforcing steel or wire.

As described above, according to the present invention, the stress members inserted into the ground are connected by a reinforcing member, thereby securing the structural stability while widening the gap between the stress members, reducing the use of the stress material, , It is expected that the effect of shortening the construction period can be expected.

When the wall is applied to a ground having weak cohesive force, such as a clay layer, a predetermined reinforcing aggregate is added to the ground along with the cement through a chain-type cutter, So that the gap between the stress members can be widely applied.

1 and 2 show a conventional continuous wall construction method.
3 is an enlarged perspective view showing a continuous wall construction method of soil cement using a chain type cutter of a conventional continuous earth wall construction method.
Figure 4 is a schematic cross-sectional view of Figure 3 of a conventional underground continuous wall construction method.
5 is a view showing a warping phenomenon when a gap of a conventional stress material is widened.
6 is an enlarged perspective view showing a continuous wall construction method of soil cement underground using a chain type cutter as a first embodiment of the present invention.
Figure 7 is a schematic cross-sectional view of Figure 4 as a first embodiment of the present invention.
8 is an enlarged perspective view showing a continuous wall construction method of soil cement underground using a chain type cutter according to a second embodiment of the present invention.
Figure 9 is a schematic cross-sectional view of Figure 6 as a second embodiment of the present invention;
10 is an enlarged perspective view showing a continuous wall construction method of soil cement underground using a chain type cutter according to a third embodiment of the present invention.
Fig. 11 is a schematic cross-sectional view of Fig. 8 according to a third embodiment of the present invention; Fig.
FIG. 12 is a conceptual view showing a process of adding a predetermined reinforcing aggregate together with cement through a chain-type cutter in addition to on-site soil in construction of soft ground.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 6 is an enlarged perspective view showing a continuous wall construction method of soil-cement underground using a chain-type cutter as a first embodiment of the present invention, and FIG. 7 is a schematic cross-sectional view of FIG. 6 as a first embodiment of the present invention .

Referring to FIGS. 6 and 7, the method for constructing the continuous wall of the earth according to the embodiment of the present invention includes the first to fifth steps.

The first step is to vertically excavate the ground using a chain-type cutter, and the second step is to continuously construct the wall construction space A having a certain depth from the ground along the ground excavated from the first step will be.

It is preferable to provide a slope measuring device on one side of the chain-type cutter 201 so that the wall-mounted space A can stably maintain the verticality.

The inclination measuring device installed on one side of the chain type cutter 201 forms a wall construction space A in a state where the chain type cutter 201 is vertically installed when excavating the ground using excavation equipment, So that the stress agent 10 inserted into the wall mounting space A is positioned at a stable position and is inserted while maintaining the vertical degree.

In the third step, when the wall construction space A having a predetermined depth is installed in the ground from the second step, the stress material 10 (for example, In the fourth step, the stress members 10 to be installed are connected to each other by the reinforcing member 20 while maintaining a wide gap from the ground to the ground, So that the spacing between them can be maintained constantly.

That is, the reinforcing material 20 is a mesh net or a grid, and the mesh net or grid is welded and fixed to the inside of the stressed materials 10 to connect the stressed materials 10, Reinforced reinforcing bars or wires, which are connected to each other at an outer end of the stress material 10 by X-joints or horizontally.

Next, in the fifth step, in the state where the stress material 10, the reinforcing material 20 connecting them and the connecting material 30 have been applied, the gel cement mixed with the soil is mixed with the wall construction space A, So that the continuous wall 40 can be completed.

That is, according to the present invention, as shown in FIG. 5, in the state where the gap L1 of the stress members is widened in the ground, the stress members 10 are connected to the mesh net or the grid The wall 40 is prevented from being warped by the reinforcing member 20 and the center of the wall 40 is moved by connecting the reinforcing member 20 with the connecting member 30 made of reinforcing steel or wire. Can be prevented.

8 and 9 show a second embodiment of the present invention in which a reinforcing member 20 'made of a mesh net or a grid is welded to the outside of the stress members 10 to weld the reinforcing member 20' And the interval between the stress members 10 is kept constant while connecting the stress members 10. The same parts as those of the first embodiment of the present invention are denoted by the same reference numerals and the duplicated description is omitted.

10 and 11 show a third embodiment of the present invention in which a reinforcing member 20 "made of a mesh net or a grid is welded and fixed to the inside of the stress members 10 while the reinforcing member 20" The reinforcing member 20 'is integrally formed with the connecting members 30' made of reinforcing steel or wires so that the spacing of the stress members 10 is constantly maintained through the reinforcing member 20 ' Hereinafter, the same parts as those of the first and second embodiments of the present invention will be designated by the same reference numerals, and redundant description thereof will be omitted.

Fig. 12 shows a case in which a continuous continuous wall of soil cement using the chain type cutter 201 of the present invention is applied to a soft ground, and in addition to the onsite soil, a predetermined reinforcing aggregate is added together with cement through a chain- Even if the wall 40 is applied to the ground where the cohesive force of the gravel is weak, such as the clay layer, in addition to the gravel supplied from the site, the chain cutter 201 may be used, The reinforcing aggregate is additionally supplied together with the cement supplied from the outside through the reinforcing member 10, so that the insertion gap of the stress members 10 can be widely applied without depending on the field soil.

At this time, when a tilt measuring device (not shown) installed vertically on one side of the chain-type cutter 201 is installed, when the ground is excavated by using the excavation equipment, the chain type cutter 201 is vertically installed It is possible to form the wall mounting space A in the state where the stress applying member 10 is inserted into the wall mounting space A. Thus,

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

Therefore, it is intended that the present invention cover the modifications and variations of this invention that come within the scope of the appended claims. * * * * * Recently Added Patents

10; Stress material
20,20'20 "; stiffener
30,30 '; Connector
40; Wall
201; Chain type coater

Claims (9)

A first step of vertically excavating the paper using a chain-type cutter;
A second step of successively constructing a wall installation space having a predetermined depth from the ground along the ground excavated from the first process;
A third step of horizontally inserting a stress material into the wall space while maintaining a gap of 1.5 to 2.0 m inside the wall space when the wall space is installed in the ground by the second step;
A fourth step of connecting the stressed materials to the reinforcements while maintaining a gap of 1.5 to 2.0 m in the ground from the third step; And
A fifth step of filling the wall construction space with the gel-like cement mixed with the gypsum in the site in the state where the stress material and the reinforcing material connecting them are formed, to construct a continuous wall; Wherein the continuous cement grout continuous wall construction method is carried out using a chain type cutter. 2. The method according to claim 1, wherein when the wall is applied to a ground having weak cohesive force of soil like a clay layer, a predetermined reinforcing aggregate is further added together with cement through a chain- Wherein a gap between the stressed materials can be widely applied without being obtrusive. 2. The apparatus according to claim 1, wherein a slope measuring device is additionally provided on one side of the chain type cutter, and when the digging ground is excavated using the excavation equipment, a chain type cutter is vertically installed to form a wall construction space, Wherein the cement slurry is maintained in a vertical position. The method according to claim 1, wherein the reinforcing member is a mesh net or a grid welded and fixed to the inner side of the stress members to connect the stress members. The method as claimed in claim 4, wherein the stress members connected to each other by the reinforcing member are spaced apart by spacing members. [6] The method of claim 5, wherein the connecting member is a reinforcing bar or wire which is connected to an outer end of the stress members in an X-direction or horizontally. 2. The continuous cement mill according to claim 1, wherein the reinforcing member is a mesh net or a grid which is welded to the outer side of the stress members to connect the stress members and keep the spacing thereof constant. Wall construction method. [2] The method according to claim 1, wherein the reinforcing member is a mesh net or a grid welded and fixed to the inner side of the stress members to join the stress members, and the connecting member for maintaining the spacing of the stress members constant, Wherein the continuous cement grout continuous wall construction method comprises using a chain type cutter. The method as claimed in claim 8, wherein the connecting member is a reinforcing bar or a wire.
KR1020150080508A 2015-06-08 2015-06-08 The Construction Method of Continuous soil cement a Pile Walls KR20160144134A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200487881Y1 (en) * 2018-06-15 2018-11-16 이강호 Earth Retaining Structure
CN112482358A (en) * 2020-11-30 2021-03-12 中铁十一局集团有限公司 Diaphragm wall construction method for diaphragm wall penetrating stratum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200487881Y1 (en) * 2018-06-15 2018-11-16 이강호 Earth Retaining Structure
CN112482358A (en) * 2020-11-30 2021-03-12 中铁十一局集团有限公司 Diaphragm wall construction method for diaphragm wall penetrating stratum

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