KR101784729B1 - Semi-shield tunnel ling method using the prevention system against the rear slime precipitation - Google Patents
Semi-shield tunnel ling method using the prevention system against the rear slime precipitation Download PDFInfo
- Publication number
- KR101784729B1 KR101784729B1 KR1020150171425A KR20150171425A KR101784729B1 KR 101784729 B1 KR101784729 B1 KR 101784729B1 KR 1020150171425 A KR1020150171425 A KR 1020150171425A KR 20150171425 A KR20150171425 A KR 20150171425A KR 101784729 B1 KR101784729 B1 KR 101784729B1
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- South Korea
- Prior art keywords
- tunnel
- chamber
- water
- branching
- unit
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000002265 prevention Effects 0.000 title claims abstract description 5
- 238000001556 precipitation Methods 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000002245 particle Substances 0.000 claims abstract description 41
- 239000002689 soil Substances 0.000 claims abstract description 28
- 238000009412 basement excavation Methods 0.000 claims abstract description 19
- 238000010276 construction Methods 0.000 claims abstract description 17
- 230000008021 deposition Effects 0.000 claims abstract description 14
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 239000010802 sludge Substances 0.000 claims description 5
- 239000003673 groundwater Substances 0.000 claims description 3
- 241000219470 Mirabilis Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 3
- 238000003971 tillage Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 241000234295 Musa Species 0.000 description 1
- 235000018290 Musa x paradisiaca Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 241000145297 Vanni Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D13/00—Large underground chambers; Methods or apparatus for making them
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0621—Shield advancing devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/13—Devices for removing or hauling away excavated material or spoil; Working or loading platforms using hydraulic or pneumatic conveying means
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
According to the semi-shielded tunnel boring construction for preventing settlement of soil particles on the back surface of a soil, the tunnel excavation method for excavating a tunnel comprises: a cutter head for excavating a tunnel surface; A chamber for collecting the generated ground particles at a rear end of the cutter head during a tunnel excavation operation; A transfer pipe for maintaining water pressure in the chamber constant and supplying water to the inside of the chamber for stable pumping; A bagney tube for sucking the water and the vortexed soil particles and discharging it to the outside; A propelling unit for propelling the cutter head and having a plurality of propelling tubes assembled therein; And a branching portion for branching the intermediate portion between the shunt pipe and the vane pipe and communicating with the outside of the propelling portion, wherein prevention of deposition of the ground particles cut by the cutter head at the bottom portion of the propelling portion through the branching portion, It is possible to excite a long-distance tunnel and to prevent lifting of the propulsion unit.
As described above, the effect of the present invention is that the ground particles cut by the cutter head at the bottom of the propelling unit prevent and remove the deposition by the branching unit, thereby making it possible to advance the tunnel at a long distance, It is possible to provide a semi-shielded tunnel boring construction using the soil backing method of the present invention.
Description
The present invention relates to a semi-shielded tunnel boring construction for preventing the deposition of soil particles on a rear surface of a soil, and more particularly, The present invention relates to a semi-shielded tunnel boring construction for preventing the deposition of soil particles on the backside.
In general, the development of large equipment such as Tunnel Boring Machine (TBM) has made it possible to build tunnels without using explosives. Tunnel construction of TBM is mechanically stable because it is excavated in a circular cross section and it is mechanized excavation with no vibration and no blasting. Therefore it minimizes ground deformation caused by excavation of the ground, thereby maximizing stability during construction due to ground excavation, This is an eco-friendly tunnel excavation method that minimizes environmental damage and maintains a safe and clean work environment.
In such a tunnel drilling apparatus, a disk-shaped drilling head having bits, cuts, and the like attached thereto is rotated to excavate the entire cross-section of the tunnel at once, or a drill having a bit, a cutter or the like attached thereto is freely moved to freely excavate a required cross section. Such tunnel excavators are particularly effective when constructing tunnels on relatively hard ground such as mountainous terrain.
1 and 2 are structural diagrams showing a conventional shield tunnel.
1 and 2, there are shown a
However, when friction force is increased as the clayey soil develops in the rear part or when it meets a hard ground in the middle of excavating with the cutter head, the excavation speed is reduced and excessive propulsion pressure is generated, so that the propulsion tube is lifted, There is a problem in that the slime is deposited.
In addition, as the development and the process are repeated, the thickness of the bottom sediment becomes thick, and finally, the upper part of the propulsion tube touches the half of the fabric. As a result, the propulsion tube is narrowed between the bottom and bottom sediment layers, There was a problem that the thrust suddenly rises and reaching the incapability state.
In addition, there is a problem that the earth particles generated while excavating overflow.
Referring to FIG. 1, as the cutter head rotates, the surface is excavated and a particle is generated. At this time, the ground particles flow into the chamber. The water pressure in the chamber is kept constant and the water is fed into the chamber through the piping for stability of the pumping. The particles entering the chamber are mixed with water and vortexed. Then, the vortexed soil particles and water are sucked into the vane pipe and discharged to the outdoors.
The cause of the overflow of the soil particles in such a situation is that the pressure of the sludge pumped into the chamber is kept at a pressure slightly higher than the groundwater pressure at the excavation surface (+ 0.3 kg / cm 2). Since the water pressure in the chamber is higher than the water pressure on the propeller, the soil particles in the chamber flow through the gap between the equipment body and the excavation surface and flow backward. And the overflowed gravels are deposited on the bottom of the propeller tube, causing a problem of incapability in the end.
It is an object of the present invention, which has been devised to solve the problems as described above, to provide an apparatus and a method for supplying water to a chamber inside a chamber for maintaining a constant water pressure in a chamber, The ground particles cut by the cutter head at the bottom of the propelling unit are prevented from being deposited and removed by the branching unit by communicating with the outside of the propelling unit through the branching unit that branches off the intermediate portion between the shunt pipe and the vane pipe, To provide a semi-shielded tunnel boring construction capable of preventing long-distance tunneling and preventing lifting of the propulsion unit.
In order to accomplish the above object, according to the present invention, there is provided a method of drilling a tunnel by a semi-shielded tunnel boring construction for preventing a deposit of a ground layer on a rear surface, the method comprising: a cutter head for excavating a tunnel surface; A chamber for collecting the generated ground particles at a rear end of the cutter head during a tunnel excavation operation; A transfer pipe for maintaining water pressure in the chamber constant and supplying water to the inside of the chamber for stable pumping; A bagney tube for sucking the water and the vortexed soil particles and discharging it to the outside; A propelling unit for propelling the cutter head and having a plurality of propelling tubes assembled therein; And a branching portion for branching the intermediate portion between the shunt pipe and the vane pipe and communicating with the outside of the propelling portion, wherein prevention of deposition of the ground particles cut by the cutter head at the bottom portion of the propelling portion through the branching portion, It is possible to excite a long-distance tunnel and to prevent lifting of the propulsion unit.
The branching unit may include a tillage engine that communicates the shipment tube and the outside of the propulsion unit so that water moving to the shipment tube is discharged to the outside of the propulsion unit and the outside of the propulsion unit, Wherein the propulsion unit includes a sludge passing hole and a vane through hole through which the tidal neces- sary orifice and the vanes are respectively passed through, .
The water introduced into the space between the bottom portion of the propulsion unit and the excavation surface through the tilling unit is supplied to the chamber side so as to be in conflict with the flow of the water and the groundwater that swirls from the chamber to the rear end of the propelling unit, Is introduced into the chamber, and is sucked together with the particles by the binocular tube as supplied to the banny tube.
Wherein the water piercing hole is formed between the chamber and the vane through hole and is formed 15 to 25 m forward of the vane through hole than the vane through hole, And is supplied to the space between the bottom of the propulsion section and the excavation surface.
The tilling neces- sary tract and the bunk branch tract are arranged in pairs so that a pair of sludge trough holes and a pair of vannee through holes are respectively penetrated through the tilling neces- sary tract and the vanni branch tract, And is formed so as to penetrate at a predetermined angle so as to face the lower portion of the propelling portion.
The pair of pine holes are formed on both sides of a vertical axis connected to the center axis of the propulsion unit, and are formed at 4 o'clock and 6 o'clock and at 6 o'clock and 8 o'clock, respectively And a pair of vane through holes are formed on both sides of a vertical plane connected to a central axis of the propulsion unit, And 6 o'clock and 8 o'clock, respectively.
In addition, the tonnage engine may include a sunny valve provided at an intermediate portion and capable of controlling the discharge of water to be discharged. The binomial branch is provided at an intermediate portion, .
And the branching unit includes a tightening plate that is fixedly coupled to the tiller tube and the vane branching tube, one side of which is closely attached to the inner circumferential surface of the propelling unit, and a fixing plate inserted through the tightening plate, And a fixing member for fixing the fixing member.
As described above, the effect of the present invention is that the ground particles cut by the cutter head at the bottom of the propelling unit prevent and remove the deposition by the branching unit, thereby making it possible to advance the tunnel at a long distance, It is possible to provide a semi-shielded tunnel boring construction structure for preventing the deposition of the soil particles on the back surface.
1 and 2 are structural diagrams showing a conventional shield tunnel.
3 is a structural view illustrating a semi-shielded tunnel boring construction for preventing the deposition of the ground particles on the backside of a ground according to a preferred embodiment of the present invention.
FIG. 4 is a structural view showing a tundra control structure of a semi-shielded tunnel boring construction for preventing soil deposition on a rear surface of a ground according to a preferred embodiment of the present invention.
5 is a cross-sectional view showing AA shown in Fig.
FIG. 6 is a structural view showing a sanitary binrel of a semishield tunnel boring construction for preventing soil deposition on a rear surface of a ground according to a preferred embodiment of the present invention.
7 is a cross-sectional view showing BB shown in Fig.
BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings for explaining a semi-shielded tunnel boring construction for preventing the deposition of soil particles on the backside of a ground according to embodiments of the present invention.
FIG. 3 is a structural view illustrating a semi-shielded tunnel boring construction for preventing the deposition of the ground particles on the rear surface of a ground according to a preferred embodiment of the present invention. FIG. 4 is a cross- FIG. 5 is a cross-sectional view showing AA shown in FIG. 4, and FIG. 6 is a cross-sectional view showing a honeycomb structure of a semi-shield tunnel pre- Fig. 7 is a cross-sectional view showing BB shown in Fig. 6. Fig.
3 to 7, the semi-shielded tunnel boring construction for preventing the deposition of the ground particles on the bottom of the soil according to the present invention includes a
The
The
The
The
The
The branching portions are respectively branched at the
The branching portion includes a
The
At this time, the
Tidal
The
In other words, the
The
At this time, each of the
The
The
The
The
The
The sine through
At this time, the pair of sany through
The pair of vane through
The water discharged through the
That is, by preventing and removing the soil particles cut by the
The water introduced into the space between the bottom of the propelling
On the other hand, the branching portion further includes a
The tightening
The fixing
It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.
10: cutter head 20: chamber
30: Songni pipe 40:
50: propeller tube 100: cutter head
110: chamber 120:
130: banknote tube 140: propulsion unit
141: propulsion pipe 150:
151: a honeycomb valve 152: a honeycomb hole
160: Banana branch body 161: Vanity valve
162: vane through hole 170: close plate
71: Fixing member
Claims (8)
A cutter head for excavating a surface of the tunnel;
A chamber for collecting the generated ground particles at the rear end of the cutter head during a tunnel excavation operation;
A transfer pipe for maintaining water pressure in the chamber constant and supplying water to the inside of the chamber for stable pumping;
A bagney tube for sucking the water and the vortexed soil particles and discharging it to the outside;
A propulsion unit for propelling the cutter head and having a plurality of propulsion tubes assembled therein; And
And a branching portion for branching the intermediate portion between the shunt pipe and the vane pipe and communicating with the outside of the propulsion portion,
Wherein the branching unit comprises:
A tidal distribution engine which communicates the outside of the propulsion section with the shunt tube to allow water to be moved to the shunt tube to be discharged to the outside of the propulsion section,
And a sanitary napkin for communicating the outside of the propulsion unit with the sanitary napkin so that the water discharged into the tramp tube and the soil particles deposited at the bottom of the propulsion unit are sucked,
The water introduced into the space between the bottom portion of the propulsion unit and the excavation surface through the airtight nidual tube is supplied to the chamber side so as to be in conflict with the flow of the water and the groundwater that flows from the chamber to the rear end of the propulsion unit, And is supplied to the banny tube to be sucked into the banny branch together with the ground particles,
Wherein the TNC includes a porthole through hole, the PNT includes a vane through hole,
The sanitary napkin is formed between the chamber and the sanitary napkin, and is formed to be 15 m to 25 m in front of the sanitary napkin through the sanitary napkin,
The water discharged through the sludge through holes is divided into the chamber side and the banknote branch side so as to be supplied between the bottom portion of the propelling portion and the excavation surface,
Wherein the tonnage engine includes a sunny valve provided at an intermediate portion and capable of controlling the discharge of the discharged water,
The above-mentioned sanitary napkin includes a sanitary valve provided at an intermediate portion and capable of controlling inflow of the introduced earth particles and water
The branching unit may include a tightening plate that is fixedly coupled to the tilling nib and the vane branching tube, one side of which is closely attached to the inner circumferential surface of the pushing unit, and a pushing plate inserted through the tightening plate, By further including the fixing member,
In order to keep the water pressure in the chamber of the cutter head constant, and to stabilize the pumping head, the feed pipe supplies water to the inside of the chamber, sucks the water and eddyed particles through the banny tube and discharges it to the outside, The ground particles cut by the cutter head at the bottom portion of the propelling portion are prevented from being deposited and removed by the branching portion so as to be able to advance the tunnel, and at the same time, A semi - shielded tunnel boring construction for the prevention of soil deposit on the back of a building.
Wherein each of the tidal unit and the binomial branching unit is formed as a pair,
The tidal power unit and the vane branching tube are each formed to penetrate through a pair of portholes and a pair of vane through holes so as to penetrate through the pair of portholes and the pair of vane through holes, A semi - shielded tunnel boring construction for the prevention of soil deposition on the back of the soil.
The pair of sine through holes are formed on both sides of a vertical axis connected to the central axis of the propulsion unit. The pair of sine through holes are formed at 4 o'clock and 6 o'clock, 6 o'clock and 8 o'clock, respectively,
The pair of vane through holes are formed on both sides of a vertical plane connected to the central axis of the propulsion unit and are formed on both sides at four o'clock and six o'clock directions And at 6 o'clock and 8 o'clock directions, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150171425A KR101784729B1 (en) | 2015-12-03 | 2015-12-03 | Semi-shield tunnel ling method using the prevention system against the rear slime precipitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150171425A KR101784729B1 (en) | 2015-12-03 | 2015-12-03 | Semi-shield tunnel ling method using the prevention system against the rear slime precipitation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20170065234A KR20170065234A (en) | 2017-06-13 |
| KR101784729B1 true KR101784729B1 (en) | 2017-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150171425A KR101784729B1 (en) | 2015-12-03 | 2015-12-03 | Semi-shield tunnel ling method using the prevention system against the rear slime precipitation |
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| KR (1) | KR101784729B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101953192B1 (en) | 2018-10-22 | 2019-02-28 | 주식회사 진평 | semi-shield method with improved directionality for recycle of casing |
| KR102055124B1 (en) | 2018-10-22 | 2020-02-07 | 주식회사 진평 | Leading pipe propulsion system with improved directionality and propulsion method using thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002256797A (en) * | 2001-03-01 | 2002-09-11 | Kidoh Construction Co Ltd | Cut dust disposal method for bedrock excavator |
-
2015
- 2015-12-03 KR KR1020150171425A patent/KR101784729B1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002256797A (en) * | 2001-03-01 | 2002-09-11 | Kidoh Construction Co Ltd | Cut dust disposal method for bedrock excavator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101953192B1 (en) | 2018-10-22 | 2019-02-28 | 주식회사 진평 | semi-shield method with improved directionality for recycle of casing |
| KR102055124B1 (en) | 2018-10-22 | 2020-02-07 | 주식회사 진평 | Leading pipe propulsion system with improved directionality and propulsion method using thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20170065234A (en) | 2017-06-13 |
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