KR100710410B1 - Tunnel high speed excavation method - Google Patents

Abstract

The present invention relates to a tunnel excavation, and to a tunnel excavation method that can increase the excavation length and rock damage, excavation and mining of the prospective excavation line while reducing vibration during tunnel excavation.

According to the present invention, in the tunnel high speed excavation method for the excavation of one free surface tunnel, an outer excavation scheduled line 1a is set at the outer side of the tunnel, and the outer excavated line 1a is formed to form the outline of the tunnel. Forming an outer portion formed of a plurality of balls to be drilled at a predetermined interval to be at least one row; Forming a bottom portion consisting of a plurality of bottom holes (1c) perforated at a predetermined interval in the bottom line (1b) of the tunnel so as to be associated with the outer portion; A plurality of at least one armed medicine hole (3) is formed in the central portion of the inner tunnel of the outer portion, and the plurality of at least one quadrangular heart heat to be spaced apart at regular intervals on the outside of the armed medicine hole (3) Forming a heart portion consisting of a heart hole; Forming a plurality of upper and lower enlargement holes (4, 5) at appropriate intervals between the outer portion and the heart portion; It is characterized in that it comprises the step of charging the explosives in each of the balls by a composite charge method consisting of a pre-stored medicine (c) and columnar medicine (b).

According to the present invention, the reduction of the number of holes per cross-sectional area, the prevention of rock damage of the excavation line, the prevention of excavation / fragmentation, the vibration reduction, the increase of the excavation efficiency and the length of the excavation are increased by the mixed charge and the compound technique.

Excavation Schedule, Deep Blasting, Upper Magnifier, Lower Magnifier, Preservative Pill

Description

Tunnel high speed excavation method {TUNNEL HIGH SPEED EXCAVATION METHOD}

1 is a view showing the outer portion disposed in the outgoing excavation line of the tunnel,

Figure 2 is a view showing the heart portion formed in the central portion of the tunnel,

3 is a view showing an upper magnification hole formed between an outer portion and a heart portion;

4 is a view showing a lower magnification hole formed between the outer portion and the heart portion;

5 is a cross-sectional view taken along line A-A 'of the inside of FIG.

6 is a cross-sectional view taken along line B′B ′ of the interior of FIG. 2;

7 is a view showing the explosives charged in each ball,

8 is a view showing a state in which the conductive wire is installed in each ball.

<Description of Symbols for Major Parts of Drawings>

1: outside hole 1c: bottom part

1c: Bottom hole 2: Outer inner hole

3: armed medicine 3 ', 3' ', 3' '': heart hair ball

4: upper magnification hole 5: lower magnification hole

a: full color b: columnar

c: preservative

The present invention relates to a tunnel excavation, and to a tunnel excavation method that can increase the excavation length and rock damage, excavation and mining of the prospective excavation line while reducing vibration during tunnel excavation.

In general, when digging a tunnel, blasting is performed to break the rock. The blasting work using explosives has the advantage of easily removing rocks or other obstacles using the explosive power of the explosives, but has the disadvantage of pollution caused by noise and vibration generated during blasting.

Many methods have been proposed to solve these drawbacks.

As such, there is a Korean Patent Application Publication No. 1996-0004704 (published on Feb. 23, 1996), which is one of the related arts related to the present invention, "a differential multistage blasting method."

The prior art relates to the separation type multi-stage blasting method of straight surface tunnel excavation, which performs an appropriate number of angled bores in either up, down, left, or right directions, and forms an appropriate number of angled bores. A horizontal drilling of the largest fabrication plant capable of drilling in the area of the membrane surface is performed in parallel, and the drilling step of horizontal drilling of the periphery and the outer periphery of the V-hole area, and the V-hole, horizontal drilling and peripheral holes Each of them charges an electrical primer, and the horizontal perforations are charged with a regular width only to the outside of the V-hole range, and an electrical charge is charged to the periphery of the heart, and the entire V-hole is simultaneously blasted to form a hard oil surface. And exploding the cardiac horizontal center hole in the cardiac horizontal perforation into the V-hole and a millisecond or decis second car to form a funnel-shaped secondary free space. Next, by blasting the cardiac horizontal center assistant and the cardiac horizontal periphery of the cardiac horizontal perforation in sequence, to form a space of the cube to secure the free surface, and then blasting the periphery and periphery of the heart sequentially Consists of.

However, in the conventional blasting method, the depth of blasting is limited because the V-hole is difficult to be drilled to more than 4 m, and the blasting order sequentially blasts the periphery and the outer hole, so that the excavation section of the tunnel outline cannot be formed cleanly. There was this.

In addition, a large number of balls takes a long time to refill, there was a problem that the work efficiency is lowered as a result.

The present invention has been made to solve the above problems, the object of the present invention is to increase the blasting efficiency and excavation efficiency to increase the excavation length, while reducing the damage and the occurrence of mining and rock mass, improve the construction properties To provide a tunnel drilling method that can be.

The present invention for realizing the object of the present invention in the tunnel high-speed excavation method for the excavation of one free surface tunnel, the outer excavation scheduled line is set on the outer periphery of the tunnel, the outer excavation to form the outer periphery of the tunnel Forming an outline made up of a plurality of balls to be drilled at regular intervals along the line to be at least one row; Forming a bottom portion formed of a plurality of bottom holes drilled at a predetermined interval on the bottom line of the tunnel so as to be associated with the outer portion; Forming at least one armed medicine hole formed in the center portion of the inner tunnel of the outer portion, and forming a heart-shaped portion made up of a plurality of heart pores so as to have at least one or more quadrangular heart heat spaced at a predetermined interval on the outside of the armed medicine hole; Making a step; Forming a plurality of upper and lower magnification holes appropriately at predetermined intervals between the outer portion and the heart portion; It is characterized in that it comprises the step of charging the explosives in each of the balls by a composite charge method consisting of pre-stored medicine and columnar medicine.

Form an outer periphery spaced apart at a predetermined interval along the perimeter of the tunnel excavation line, and the inner perimeter hole in two rows at the same interval as the interval of the outer perforations so as to be spaced at a predetermined interval inward from the perimeter excavation line Formed to be arranged side by side, the outer outer hole and the inner outer hole is characterized in that formed to be arranged in a zigzag to cross each other.

The space between the outer and inner outer hole is 40 ~ 80cm, the pore diameter of the outer and inner outer hole is 45 ~ 65mm, the depth of the outer outer hole is formed of about 60% of the upper and lower magnification hole , The depth of the inner outer hole is about 10cm deeper than the depth of the upper and lower augmentation hole, the outer and inner outer hole is formed to be inclined about 2 degrees to 5 degrees at the outward angle of the tunnel, the outer outer hole of the Fill the length of 40cm with full length, save 5 ~ 50% of the length except the full length, and use the 32 ~ 50mm diameter medicine to save the medicine, and the length of 95 ~ 50% between the storage and the color length. Use the 22 ~ 42mm medicine to charge the columnar charges, the inner pill is full length of 40cm, the rest of the length of the outer periphery of the outer periphery except the full length Expense from the bottom, M Portion of the length is characterized in that the arm about the state.

The bottom hole has a pore diameter of 45 to 65 mm, a depth of about 10 cm deeper than a depth of upper and lower augmented holes, a space spacing of 0.6 m to 1.2 m, and the bottom hole of the tunnel at an outward angle of the tunnel. It is formed to be inclined at about 2 degrees to 5 degrees, and the medicine of the bottom is made by using a medicine with a diameter of 42 to 50 mm at a length of 5 to 50% in the remaining length except for 0.4 to 1.2 m of the full color in the bottom. And it is characterized by using a 32-42mm caliber medicine in the length of 95-50% between the preservatives and full-color length to charge the columnar charges.

The hole diameter of the armed weak hole is 8.9 ~ 24.9cm, the space spacing of the armed weak hole is the same as the hole diameter, while the armed weak hole is formed horizontally in the direction of the tunnel progression, the depth is formed 10cm deeper than the upper and lower magnification holes, The armed medicine is characterized in that it is formed to be increased at intervals spaced in the up / down direction by the hole diameter of the armed medicine as the excavation area of the tunnel increases.

The cardiac fever is one heart fever with four cardiac cavities arranged in a quadrangular shape around one armed medicinal hole, and when the armed medicinal filament increases one by one in the vertical direction, the cardiac fever increases in the vertical direction and becomes a rectangular shape. One each on each side of the ball is increased, the heart fever is characterized by gradually increasing to the space spacing of the heart ball with the increase in armed medicine.

The advancing direction of the cardiac cavities is formed to be parallel to the tunnel progress direction, the spacing of the cardiac cavities of the cardiac unit is 130 ~ 850mm, the pore diameter of the cardiac cavities is 45mm ~ 65mm, the depth of the cardiac cavities are upper and lower It forms as enlarged holes, the charge of the cardiac cavities, using the medicine of the diameter of 42 ~ 50mm in the length of 5% to 50% of the remaining length except the full color field, and the length of the remaining 95 to 50% It is characterized in that the column drug using a 32-42mm diameter medicine.

The pore size of the upper and lower magnification holes is 45 ~ 65mm, the depth is 2.2 ~ 7m, the space spacing of the upper and lower magnification holes and the outer and inner outer holes is 0.8 ~ 1.7m The spacing of the enlarged holes disposed between the inner circumferential hole and the bottom hole and the cardiac hole is 0.8m to 1.7m, and the charge of the upper and lower enlargement holes forms a full color field by 80 to 170cm. Save the medicine using a caliber of 42-50mm in the length of 5-50% of the remaining length except for the full color, and use the 32-42mm medicament in the length of 95-50% between the storage and the color. It is characterized by a column-type charge.

The explosives charged in the respective balls are explosives charged in the order of outer and inner outer hole, bottom hole, heart hole, lower and upper magnification hole, and the outer and inner outer hole, bottom hole, heart hole, lower hole And the full color, columnar charges and preservatives charged in the upper magnification hole are characterized in that the blasting by the compound detonation method consisting of the regular detonation method and the back detonation method.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

First, the names used in the present invention are briefly defined as follows.

1. A hole is a hole with a certain depth and drilled to a certain depth.

2. Pre-Splitting is applied prior to the main blasting to block the transmission of cracks, hair damage or vibrations before blasting for production or cutting. .

3. Overburden is a phenomenon that is not able to play a role as cracks or fractures due to the blasting on the parts that need to be self-reliant and have the physical properties of the mother rock beyond the excavation schedule.

4. Mining means that there is a part left to be blown off the excavation line as opposed to overhang.

5. Stopping: It is the part that blasts while gradually increasing the size of the free surface by artificially converting it into 2 free surface by the blasting in the free surface state inside the tunnel.

6. Lifters: Located in the lower part of the heart horizontally, the blasting work is performed as if the rock is pushed upward by the blasting shape.

7. Expected excavation line: A virtual space to be excavated in the longitudinal section of the tunnel, which meets the space and the ground.

8. The full color is the packing that blocks the entrance of the ball, and the explosives are the explosives installed at the bottom of the ball.

9. The compound detonation method is a technique of using the inverse detonation method to make a charge by placing a primer at the base of a ball, and using the regular detonation method to make a charge by placing a primer at the entrance of the ball. .

1 is a view showing the outer portion disposed in the outgoing excavation line of the tunnel, Figure 2 is a view showing the heart portion formed in the center portion of the tunnel, Figure 3 is a top magnification hole formed between the outer portion and the heart portion Figure 4 is a view showing a lower magnification hole formed between the outer portion and the heart portion, Figure 5 is a cross-sectional view taken along the line A ~ A 'showing the interior of Figure 2, Figure 6 is a view showing the interior of Figure 2 B A cross-sectional view taken along line B ', and FIG. 7 is a view showing explosives charged in each ball, and FIG. 8 is a view showing a state in which a conductive line is installed in each ball.

As shown in FIGS. 1 to 7, the present invention forms an outer portion by drilling a plurality of balls at regular intervals along an outer side of the straight surface of the tunnel, that is, along the outer edge of the tunnel. At this time, the plurality of balls are arranged in a jig jig so as to be staggered in two rows with each other along the edge of the excavation line, the inner side of the outer excavation line (2) is formed, the outer side of the outer excavation line To form 1).

Here, when the tunnel is excavated to 4m or less, only the inner outer hole 2 is formed, and when the tunnel is excavated to 4m or more, both the outer and inner outer holes 1 and 2 are formed.

In addition, a bottom portion formed of a plurality of bottom holes 1c perforated at a predetermined interval is formed at the bottom line 1b of the tunnel so as to be connected to the outer portion, and at least one armed medicine hole 3 is formed at the center of the inner tunnel of the outer portion. ) Is formed, and the outer side of the armed medicine hole (3) forms a heart hair consisting of a plurality of heart-shaped holes (3 ', 3' ', 3' '') arranged in a square spaced apart at regular intervals, and the outer portion and A plurality of upper and lower magnification holes 4 and 5 are appropriately formed at regular intervals between the cores, and explosive charges are charged in each ball.

The outer portion of the outer periphery hole (1) arranged and spaced apart at regular intervals along the outer perforation excavation line (1a) of the tunnel, and the outer periphery (1) spaced at a predetermined interval inward from the perimeter excavation line (1a) The inner outer hole (2) is arranged to be arranged side by side in two rows arranged in the same interval as the interval of the, the outer outer hole (1) and the inner outer hole (2) are arranged in a jigge to cross each other.

The upper and lower magnification holes 4 and 5 have a pore diameter of 45 to 65 mm, a depth of 2.2 to 7 m, a space spacing of 0.8 m to 1.7 m, and an inner perimeter hole (2), a bottom hole (1c), and a deep pore hole. (3 '' ') of the expansion holes (4, 5) disposed between the resistance line is 0.8 ~ 1.7m, the charge is filled with the remaining length except the full color (a) 80 ~ 170cm ) Use a medicine with a diameter of 42-50mm at a length of 5 to 50%, and a columnar medicine (b) with a length of 95 to 50% at a length of 95-50%. Use

The distance between each of the outer and inner outer holes 1 and 2 is 40 to 80 cm, the pore diameter of the outer and inner outer holes 1 and 2 is 45 to 65 mm, and the depth of the outer outer hole 1 is enlarged (4). , 5) formed about 60% of the depth, the depth of the inner outer hole (2) is formed 10cm deeper than the depth of the enlarged holes (4, 5).

The outer and inner outer holes (1, 2) are formed to be inclined at about 2 degrees to 5 degrees at the outward angle of the tunnel, the charge of the outer outer hole (1) is the remaining storage except the full length (a) 40cm ( c) Use 32 ~ 50mm diameter medicine with 5 ~ 50% length, and use precision explosives or 22 ~ 32mm medicine with length of 95 ~ 50% of the column length between preservative medicine and full color.

The charge of the inner outer hole (2) is charged with the same length and the same method as the outer outer hole (1), the remaining length except the full color (a) 40cm is left in an unloaded state.

The hole diameter of the bottom surface hole 1c of the bottom portion is 45-65mm, the length is formed 10cm deeper than 2.2-7m which is the same depth as the depth of the enlarged holes 4, 5, and the space spacing is 0.6m-1.2m. The bottom hole (1c) is formed to be inclined at about 2 degrees to 5 degrees at the outward angle of the tunnel, and the charge is about 5 to 50% of the length of the preservative (c) at the remaining length except for the full color (a) 40 cm. Use a medicine of 42 ~ 50mm, and use a 32 ~ 42mm diameter medicine with a length of 50% ~ 95% of the columnar medicine (b) between the preservative medicine (c) and the full color (a).

The armhole weakness (3) of the heart hair is 8.9 ~ 24.9cm, the spacing is the same as the gap, the armhole (3) is formed horizontally in the longitudinal direction of the tunnel than the depth of the enlarged holes (4, 5) 10cm deeper can be used as a free surface when blasting to increase the efficiency of drilling and to increase the length of the excavation, armed medicinal (3) as the tunnel's excavation area increases, Incrementally spaced apart downward.

Here, the number of armed weak holes (3) is preferably used selectively from 1 to 4 in consideration of the width of the tunnel, and here, the pore diameter of the armed weak holes (3) is preferably 102mm.

The spacing of the cardiac cavities (3 ', 3' ', 3' '') of the cardiac foot is 130 to 850 mm, and the spacing with the armed medicine (3) is the same as the spacing of the cardiac cavities and parallel to the tunnel progression direction. The cardiac cavities 3 ', 3' ', and 3' '' are formed in parallel with the tunnel traveling direction, and four cardiac cavities 3 'are square around the one armed medicine ball 3, respectively. The first cardiac fever is arranged in a shape, and when the armed medicine hole 3 is increased by one, the number of cardiac holes 3 'is increased by one each on both sides so that the rectangular fever is vertically extended to become rectangular. As the medicine hole 3 increases, the heart fever gradually increases to the spacing of the heart holes 3 ', 3' ', 3' ''.

Here, the gap between the armed medicine hole (3) and the heart hair hole (3 ') is spaced at a distance of 1.5 to 2.5 times the diameter of the armed medicine hole (3), that is, 130 ~ 350mm.

The pore diameters of the cardiac holes 3 'and 3' 'formed on the outer side of the armed medicine hole 3 are 45 to 65 mm, and the depths of the cardiac holes 3', 3 '' and 3 '' 'are enlarged holes. (4, 5), the depth of the heart hole (3 ', 3' ', 3' '') charge is 5% to 50% of the storage agent (c) at the remaining length except the full color (a) A medicine with a diameter of 42 to 50 mm is used for the length of%, and a medicine with a diameter of 32 to 45 (42) mm is used for a length of 50% to 95% between the preservative medicine (c) and the color field (a). Do the charge (b).

The charge of the cardiac cavities is applied with the compound detonation method together with the above compounding method.

Here, the compound detonation method refers to a technique of using the inverse detonation method to charge by placing a primer at the base and to charge by the periodic detonation method to charge by placing a primer at the entrance side of the ball.

As shown in FIG. 8, the explosives charged in the respective balls are detonated and blasted in the order of the outer and inner outer holes, the bottom hole, the deep hole, the lower and upper enlarged holes. At this time, the full color (filled in the outer and inner outer hole (1, 2), the bottom hole (1c), the cardiac hole (3 ', 3' ', 3' ''), the lower and upper magnification holes (4, 5) a), columnar charges (b) and preservatives (c) are simultaneously blasted by the compound detonation method consisting of the periodic detonation method and the back detonation method, so that the root cuttings are neat.

In the present invention as described above, the operation is simplified by significantly reducing the number of balls formed in the tunnel, and the drilling efficiency is increased by the compound charging method consisting of columnar charges and preservatives that are charged for each ball. Can be magnified.

Hereinafter, comparing the experiment of the prior art with the experiment of the present invention.

First, the prior art is a field application experiment using the conventional blasting method commonly used in the field, the size of the tunnel is 8 (width) m × 6 (height) m, one 102mm armed medicine, 3.8m in fabric mills, etc. The balls were designed with a diameter of 45mm and a total of 120 balls with a 3.7m height.

However, the result of blasting is very low, with the excavation rate (drilling site / fabric mill) about 56%. The main reason is that the lack of new free surface development and root cutting were not performed smoothly in the core extraction, and sometimes sand pressure phenomenon, sintering phenomenon, cut-off phenomenon, and iron cloth phenomenon occur. In other words, this site adopts the cylinder cut method, and since the distance between the armed drug and the charge space (denoted by a) is a = 200mm in the first square of the core drawer, it is difficult to precisely drill and the hole diameter is small (45mm). Cleaning and charging was difficult. The reason for drilling at a = 200mm above is that the mill is 3.7m, which is relatively long, while the rock quality is hard to light, so the drilling precision does not come out as planned, so the space penetrates from the bottom of the hole or the space is unexpectedly far away. The case arises.

In particular, when the ball is blocked in the middle of the charge, jumbo drills should always be waited in the situation where the ball should be cleaned because it is inevitable that it is inevitable to draw the expected development stereoscopic view of the new free surface. Due to high pressure water piping, it was difficult to secure a working space.

In addition, as mentioned above, the excavation rate is very low, so after the first blasting, it is necessary to re-perforate the first blasted part.

As described above, in the case of using the conventional 45mm bit, the blasting efficiency is 55.9% because the core 200cm is drilled to advance 111.87cm.

Hereinafter, the present invention will be described using Table 1.

In the explosives of Table 1, EM.32mm is 32mm x 295mm x 250g, EM.50mm is 50mm x 380mm x 800g.

Hereinafter, comparing the effects according to the prior art and the present invention is shown in Table 2 below.

As described above, when the composite charging method and the composite detonation method of the present invention are used, the excavation rate is almost 100% because there are no residual pores.

This drastic improvement in the rate of excavation is due to the increase in the blasting effect due to the increase of the drug diameter / pore ratio in the root clipper and the decrease in the pore / weak diameter ratio (De coupling coefficient). Increasing, utilizing the diameter of residual hole generated by compressive stress as a new free surface, converting arm piece movement at the bottom of the tool from vertical direction to horizontal arming hole due to the preservation agent, increasing the speed of expiration of the preservation agent, etc. Due to the effect of the compound detonation method, the fluid flow of the arm piece near the width of the width of the core at the seam extraction portion is discharged through the opening made in the tool. Therefore, by forming a new free surface continuously to create a free space to move the arm piece of the bottom of the directional direction.

Although the preferred embodiments of the present invention have been described in detail above, those of ordinary skill in the art to which the present invention pertains may implement the present invention by various modifications or design changes without departing from the scope of the claims. In case it is regarded as the scope of the present invention.

According to the present invention, the work is simplified by significantly reducing the number of balls, and the root cutting is neatly carried out by the compound detonation method composed of columnar charges and preservatives, and the detonation method consisting of the periodic detonation method and the back detonation method. As a result, the excavation efficiency is increased, thereby increasing the excavation length.

Claims (9)

In the tunnel high speed excavation method for the excavation of one free surface tunnel, The outer periphery of the tunnel is set at the outer periphery of the tunnel, and the periphery of the plurality of balls is drilled at regular intervals along the periphery of the periphery of the preliminary excavation line 1a to form at least one row. Forming; Forming a bottom portion consisting of a plurality of bottom holes (1c) perforated at a predetermined interval in the bottom line (1b) of the tunnel so as to be associated with the outer portion; A plurality of at least one armed medicine hole (3) is formed in the central portion of the inner tunnel of the outer portion, and the plurality of at least one quadrangular heart heat to be spaced apart at regular intervals on the outside of the armed medicine hole (3) Forming a heart portion consisting of a heart hole; Forming a plurality of upper and lower enlargement holes (4, 5) at appropriate intervals between the outer portion and the heart portion; Tunneling high-speed excavation method comprising the step of charging the explosives in each of the balls by a composite charging method consisting of a preservative (c) and columnar charges (b). The method according to claim 1, wherein the outer periphery hole (1) is formed to be spaced apart at regular intervals along the outer excavation line (1a) of the tunnel, The outer periphery hole (2) is formed to be arranged side by side in two rows at the same interval as the interval of the outer periphery holes (1) to be spaced at a predetermined interval inward from the outer excavation line (1a), the outer periphery hole (1) Tunnel high-speed excavation method, characterized in that the inner periphery (2) is formed to be arranged in a zigzag to cross each other. According to claim 2, wherein the space between the outer and inner outer holes (1, 2) is 40 ~ 80cm, the diameter of the outer and inner outer holes (1, 2) is 45 ~ 65mm, the outer outer The depth of the ball (1) is formed of about 60% of the upper and lower magnification holes (4, 5), the depth of the inner outer hole (2) is about 10cm than the depth of the upper and lower magnification holes (4, 5) To form deeper, the outer and inner outer hole (1, 2) is formed to be inclined about 2 degrees to 5 degrees at the outward angle of the tunnel, The charge of the outer periphery (1) is a full-length (a) 40cm in length, except for the full-length (a) 5-50% of the length in the remaining length using a 32 ~ 50mm diameter medicine medicine ( c) and charge the columnar medicine (b) using a 22-42mm medicine with a length of 95-50% between the preservative medicine (c) and the full color (a), The charge of the inner periphery (2) is a full length (a) of 40cm in length, except for the rest of the full length (a) the preservation drug (c) and columnar medicine (b) of the outer periphery (1) Tunneling from the bottom of the remaining length, and the remaining length portion is tunnel-free, characterized in that the unarmed state. According to claim 1, wherein the bottom diameter of the bottom hole (1c) of the bottom portion is 45 ~ 65mm, the depth is formed about 10cm deeper than the depth of the upper and lower magnification holes (4, 5), the spacing is 0.6m ~ 1.2 Formed to m, the bottom hole (1c) is formed to be inclined about 2 degrees to 5 degrees at the outward angle of the tunnel, The medicine of the bottom hole (1c) is used in the bottom hole (1c), except for the full length (a) 0.4 ~ 1.2m in the length of 5 to 50% in the length of 42 ~ 50mm medicinal medicine (c) Tunneling high-speed excavation method characterized in that to charge the columnar medicine (b) using a 32 ~ 42mm diameter medicine gun in the length of 95-50% between the preservative medicine (c) and full color (a). According to claim 1, wherein the hole diameter of the armed medicine (3) is 8.9 ~ 24.9cm, the space spacing of the armed medicine (3) is the same as the pore diameter, the armed medicine hole (3) is formed horizontally in the advancing direction of the tunnel While the depth is 10 cm deeper than the upper and lower magnification holes (4, 5), The armed medicine hole (3) tunnel high-speed excavation method, characterized in that to form at an interval spaced apart in the vertical / vertical direction by the hole diameter of the armed medicine hole (3) as the excavation area of the tunnel increases. According to claim 1, wherein the heart heat fever is centered around the one armed medicine hole (3) four heart hair holes (3 ') are arranged in one heart-shaped fever, the armed medicine hole (3) 1 in the vertical direction As the number of dogs increases, each one of the cardiac cavities (3 ') is increased by one each, so that the quadrilateral heart fever increases in the vertical direction and becomes rectangular, and the fever is increased according to the increase in the armed medicine (3'). Tunnel high speed excavation method characterized in that the gradually increasing to the space spacing of '', 3 '' '). According to claim 1, wherein the advancing direction of the cardiac holes 3 ', 3' ', 3' '' is formed to be parallel to the tunnel progress direction, the cardiac holes (3 ', 3' 'of the cardiac part) , 3 '' ') spacing is 130 ~ 850mm, the pore diameter of the heart ball (3', 3 '', 3 '' ') is 45mm ~ 65mm, the cardiac holes (3', 3 '', 3 '' ') is formed by the upper and lower magnification holes (4, 5), The charge of the cardiac cavities (3 ', 3' ', 3' '') using the medicine of the diameter of 42 ~ 50mm in the length of 5% to 50% in the remaining length except the full color (a) (c) the tunnel high-speed excavation method characterized in that the column-shaped charge (b) using a 32-42mm diameter medicine for the remaining length of 95-50%. According to claim 1, wherein the pore size of the upper and lower magnification holes (4, 5) is 45 ~ 65mm, the depth is 2.2 ~ 7m, the space between the upper and lower magnification holes (4, 5) and Spatial spacing with the outer and inner outer holes (1, 2) is 0.8 ~ 1.7m, the magnification is disposed between the inner outer hole (2) and the bottom hole (1c) and the cardiac hole (3 '' ') The spacing of the balls (4, 5) is formed from 0.8m to 1.7m, The charge of the upper magnification hole and the lower magnification hole (4, 5) forms a full color length (a) by 80 ~ 170cm, the diameter of 42-50mm in the length of 5-50% from the remaining length except the full color length (a) Save medicine (c) using the medicine of the medicine, and store the medicine (b) using a 32-42mm diameter medicine with a diameter of 95-50% between the storage medicine (c) and the color scheme (a). Tunnel high speed excavation method characterized in that. The method of claim 1, wherein the explosives charged in each of the balls are the outer and inner circumference (1, 2), the bottom hole (1c), the heart ball (3 ', 3' ', 3' ''), lower and Charged explosives in the order of the upper magnification holes (4, 5) are blasted, Full color (a) filled in the outer and inner outer holes (1, 2), the bottom hole (1c), the cardiac hole (3 ', 3' ', 3' ''), the lower and upper magnification holes (4, 5) ), Columnar charge (b) and pre-stored (c) is a tunnel high-speed excavation method, characterized in that the blasting by a compound detonation method consisting of a regular detonation method and a back detonation method.

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