KR101737521B1 - Trench shield apparatus of excavating all surface, and rapid construction method for near-surface ground excavation using the same - Google Patents

Abstract

The present invention provides a low depth excavation rapid construction method using front excavation type trench shield equipment, and front excavation type trench shield equipment improving constructability and rapidly construct a tunnel by using a front excavation type trench shield apparatus where a main frame, an excavation drum, a driving motor, and a hydraulic actuator are coupled to excavate a front surface of the ground in the face direction. Moreover, the front excavation type trench shield equipment connects PC box segments while digging by using the front excavation trench shield apparatus in order to rapidly perform low depth excavation.

Description

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a trench shielding apparatus, and more particularly, to a trench shield apparatus and a low-depth excavation rapid-

The present invention relates to construction of low depth drilling, and more specifically, to a tunnel for continuously installing a PC (Prestressed Concrete or Precast Concrete) box in a low depth drilling system, (Trench Shield Apparatus) capable of excavating the entire surface of a ground, and a low depth-of-excavation quick-setting method using the trench shield appa- ratus.

In general, in the case of large cities, the number of people who live in the city is several hundred thousand, and it is the urban railway that the citizen is most used in the reality that the use of public transportation is encouraged, and the large number of people flow at once.

The evolution of the urban railway system has changed in several stages. The first urban railway began to run on the road, but as the city became more complicated, it served as a stumbling block to other modes of transportation, , Noise and vibration, etc., caused the city to become a hate facility. As a result, trends have changed with subways that can solve problems such as urban congestion, noise and vibration. However, such subways have come up with enormous construction costs, harmful fine dust, and transfer problems.

In addition, although expensive light railway systems are more economical than subways in order to solve the problems of subways, they do not solve all problems such as huge construction cost, inhibition of city aesthetics, noise and vibration compared with transportation demand. For example, underground light rail has a difficulty in business promotion due to the burden of construction cost, and there is a problem that the construction can be delayed due to civil complaints such as city aesthetics, noise problems, privacy invasion at the time of construction of such an expensive light rail.

Specifically, in order to construct an underground structure such as a tunnel for a conventional subway or the like, a large number of large-diameter steel pipes are inserted in the longitudinal direction of the tunnel in the ground, concrete is laid in the steel pipe, And then excavated to an excavable depth. The work space for assembling the reinforcing bars and installing the concrete after installing the formwork in the steel pipe is narrowed, and the working environment is deteriorated. In addition, there are problems such as delay in the construction period and increase in construction cost. Also, the tunnel construction according to the conventional technology has a problem that the construction range is excessively wide, congesting the road traffic around the construction site. Also, in recent years, the cost of construction has been greatly increased due to the tendency to become more sophisticated.

In order to solve the above-mentioned problem, a low-depth urban railway system has recently been developed. Such a low-depth urban railway system is constructed as an underground railway which can be constructed at about 5 to 7 meters below the road surface, It is a new high-efficiency urban railway system which is constructed in the basement at low cost compared with the above-mentioned light rail to improve the city aesthetics, noise and vibration, accessibility, comfort and convenience.

As a prior art related to this, Korean Patent Laid-Open Publication No. 2014-0000434 discloses an invention entitled " Method of constructing a low-depth urban railway tunnel ", which will be described with reference to Fig.

1 is a view for explaining an installation concept of a low-depth urban railway tunnel in a general low depth drilling system.

1, a typical low-depth urban railway tunnel 10 functions as a road on which an urban railway, particularly a light railroad such as a tram, is operated, and is provided with a tunnel 10 ), So that the urban railway, which is a transportation means, is operated underground.

Particularly, when the low-depth urban railway tunnel 10 is installed on the road surface 11 on the ground, it has an advantage that passengers can be easily transferred through a bus stop 13 provided on the inside of the roadway 12 . At this time, in order to facilitate the passengers' convenient transfer, the stairs 16 are installed or an escalator or an elevator is installed in order to smooth the movement between the platform 12 and the platform 15 of the low-depth urban railway tunnel 10 .

Therefore, the passenger can selectively ascend and descend the transportation means traveling in the desired direction at the current position. Particularly, since the low-depth urban railway tunnel 10 is only about 5 to 7 meters vertically downward from the ground, the travel time from the ground to the landing site 15 of the low-depth urban railway tunnel 10 is very short. In addition, the low-depth urban railway tunnel 10 continuously connects structures in which a passage through which a vehicle 14 such as a light railway can move is formed to penetrate in the longitudinal direction.

Such a low-depth urban railway tunnel 10 can use a prefabricated structure for low-depth urban railway tunnel construction, can reduce the construction period because it can be reused repeatedly, By reducing the cross-sectional area of the tunnel, it is possible to minimize the encroachment of roads during construction, thereby alleviating congestion on the ground.

In other words, the low depth excavation system develops the railway car with almost same driving performance and it is constructed with low depth of 5 ~ 7m along the road, so it is about 40% of the subway construction cost, and the construction cost is low, Can be reduced, and the beauty of the city can be ensured.

In the case of the low depth drilling system, it is possible to use the independent wheel type bogie for the curved road running performance, and it is possible to operate the quadric curve having a radius of curvature of about 15 m, and to provide the elastic wheel and the buried orbit for noise and vibration reduction It is possible to realize a low vibration and low noise track system.

Fig. 2 is a diagram showing reduction of the vehicle height through slimming of electrical equipment in a low depth drilling system. Fig. 2 (a) shows a conventional light rail, and Fig. 2 (b) shows a low depth drilling system.

As shown in Fig. 2b), the low depth drilling system can minimize the vehicle height and reduce the tunnel cross-sectional area. 2, the vehicle height can be minimized by reducing the vehicle height from the conventional 3.4 m to 3.0 m by slimming the electrical equipment, and compared with FIG. 2 (a) As the cross-sectional area can be reduced from 32.5m2 to 27.2m2, the construction cost can be reduced by about 5%.

3 is a view for explaining the natural ventilation of the low depth excavation system. Fig. 3 (a) shows a conventional light rail, and Fig. 3 (b) shows a low depth excavation system.

As shown in FIG. 3B, the low depth drilling system can apply a system that naturally ventilates the inside of the tunnel by using the heat wind generated when the train runs.

For example, FIG. 3 (a) shows a conventional forced ventilation system, which can increase historical energy consumption because it uses a forced fan as shown in FIG. On the other hand, FIG. 3B shows a natural ventilation system of the low depth drilling system, and as shown by reference numeral B, it can be said that it is an environmentally friendly natural ventilation system capable of natural ventilation due to the heat wind. Therefore, the low depth drilling system can reduce the construction cost and operating cost by more than 30% compared with the existing forced ventilation system.

In addition, the low depth drilling system can be used for unmanned operation and unmanned history. For example, as an easy history of the bus stop concept, an event type integrated control system for vehicle safe operation and unmanned history operation can be applied, It is possible to make the history slim by the unification of the rooms and to realize the event type integrated smart control system.

4A and 4B are views showing the history of underground light rail and history of a low depth drilling system according to prior art, respectively. FIG. 4A shows a history of a conventional underground light rail and FIG. 4B shows a history of a low depth drilling system.

The low depth excavation system can construct a slim history as shown in FIG. 4B, and also realize the island scale platform at the center of the road, thereby minimizing the historical scale and the copper line by natural light and natural ventilation.

5A and 5B are views for schematically explaining the final tunnel structure and the construction process when the underground light rail is constructed according to the conventional technique.

FIG. 5A shows the final tunnel structure in the underground light rail construction according to the prior art. Further, as shown in FIG. 5B, a complicated construction is used and a complicated construction process is performed. For example, 1.7 days / m, so that the construction period is long.

As described above, the low depth drilling system can reduce the construction cost compared to the conventional underground light rail, and can also improve the convenience of the passenger due to the reduction of the transit time and the access time. In addition, in the case of such a low depth drilling system, a rapid construction method that can solve the problem of a long construction time in the construction of a conventional underground light railway is required. However, a rapid construction method that can shorten a concrete construction period is provided It does not exist. Also, it is necessary to develop excavation equipments that can be applied for the rapid construction method of low depth drilling system.

Korean Patent No. 10-1194102 filed on Mar. 2, 2010, entitled "Method for Excavating Concrete Tunnel Structures" Korean Patent No. 10-926501 filed on May 8, 2009, entitled " Method of constructing non-detachable tunnel structure combining loop and shield, and tunnel structure thereof " Korean Patent Publication No. 2014-0000434 (Published on Jan. 3, 2014), entitled "Method of Construction of Low Depth City Railroad Tunnel" Korean Patent No. 10-805189 filed on Sep. 12, 2006, entitled "Method of constructing an underground structure together with wall construction and excavation" Korean Patent No. 10-383452 filed on June 1, 2000, entitled " Substructure of Underground Tunnel Work Wall Construction " Korean Patent No. 10-322844 filed on Apr. 1, 1999, entitled "Tubular Structure Tunnel Drying Method" Korean Unexamined Patent Publication No. 2007-118828 (Publication Date: December 18, 2007), entitled "Tongue &

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a low depth drilling system in which a trench shield The present invention provides a trench shielding apparatus with a full excavation type which can improve the workability of the excavation and can rapidly construct the excavation site using the apparatus.

It is another object of the present invention to provide a front-excavation-type trench shield apparatus capable of connecting PC box segments while being pivoted by using front excavation-type trench shield equipment, and to provide a low-depth excavation rapid construction method using the same will be.

As a means for achieving the above technical object, there is provided a trench shield appa- ratus for excavating a ground in a horizontal direction so as to connect low-depth excavation by connecting PC box segments, A main frame including a second frame arranged to be spaced apart from the first frame, and a third frame formed to connect the first frame and the second frame; A pair of first excavating drums disposed in front of the first frame and arranged in a direction parallel to the first frame and arranged in a plurality of pairs in parallel with the first frame and cutting bits formed respectively on the outer circumferential surfaces of the second excavating drums, An excavating drum for excavating the entire surface and covering the excavated soil; A hydraulic drive motor driven by hydraulic pressure to simultaneously rotate the first excavation drum and the second excavation drum; A reaction force frame installed in a segment construction section formed at the rear of the main frame and contacting a side surface of the PC box segment to provide a reaction force; Four hydraulic actuators, one side of which is connected to the second frame, the other side of which is fastened to the corner of the reaction force frame and which pushes the excavating drum while being pressurized by hydraulic pressure; An anti-slip barrier wall provided on both sides of the hydraulic actuator in contact with the first and second frames to prevent collapse of surrounding gravel in the segment construction interval; A bucket disposed between two hydraulic actuators positioned below the four hydraulic actuators; And a soil transfer device disposed at a lower portion where the first frame and the second frame are in contact with each other and extending to the bucket to transfer the gravel into the bucket through the drilling drum.

Here, the bucket includes a first bucket adjacent to any one of the two hydraulic actuators, a second bucket adjacent to the first bucket, and a third bucket adjacent to the second bucket, and the gravel And is transferred to the second bucket by the gravel-transfer device.

Here, the first bucket is salvaged by a bucket crane after the gravel is filled with the second bucket, the second bucket and the third bucket move toward the first bucket, And is lowered from the upper portion to the lower portion by the crane and is disposed adjacent to the third bucket.

Here, the excavating drums are excavated while the cutting bits attached to the excavating drums disposed at the front of the main frame are rotated while being propelled by the four hydraulic actuators, and the excavating drums are disposed on the first and second excavating drums And the excavated soil is excavated with the cutting bit in the forward direction while rotating in the opposite direction.

Here, the excavating drums are disposed adjacent to each other, and the gravel excavated between the first and second excavating drums is clogged, wherein at least two or more of the first and second excavating drums are vertically connected .

Here, the excavation drums are disposed to have an inclination of 45 to 60 degrees so as to excavate the entire surface of the ground in the direction of the film surface.

In this case, the shape of the cutting bit formed on the outer circumferential surface of the first and second drilling drums may be a point spiral, an all surface, an overlap, a wide lattice, a wide spiral, A wide vertical, an ascending spiral, and a descending spiral shape.

The space between the main frame and the excavation drum is opened so that movement of the PC box segment is performed through a ground crane, which is a lifting device.

The front-excavation-type trench shield apparatus according to the first embodiment of the present invention may further include an abduction jack for rotating the excavation drum by a predetermined angle in the lateral direction for constructing the curved portion of the low depth excavation.

As another means for achieving the above-mentioned technical object, a low depth-of-field excavation rapid construction method using a front excavation type trench shield apparatus according to a first embodiment of the present invention is characterized by comprising a main frame, excavating drum, a driving motor and a hydraulic actuator A method of constructing a low depth excavation using a front excavated trench shield device comprising: a) installing a front excavated trench shield device for low depth excavation construction in a trench groove; b) operating the excavating drum by driving a drive motor of the front excavation type trench shield device; c) entirely excavating the ground in the direction of the closing direction of the drilling drum of the front excavation type trench shield equipment; d) removing the clay deposited into the front excavation trench shield equipment by the excavating drum; e) propelling the hydraulic actuator of the front excavation type trench shield device to secure a space for installing the PC box segment; f) installing a PC box segment in a vertical direction in the secured segment construction; And g) repeatedly constructing the excavation of the front excavation type trench shield equipment and the installation of the PC box segment to form low deep excavation, wherein the excavation drums of the step c) The excavated soil can be excavated with the cutting bits formed on the outer circumferential surface of the first and second excavating drums forward.

Here, the PC box segment is installed and connected in the step f) at the same time as the digging drum of the step c) is pivoted.

In the step a), a trench groove is formed at a predetermined depth in the lower part of the road, and a reaction force band is provided at the rear end of the trench groove. Then, the front-excavation type trench shield device 100 is inserted into the trench groove .

The front excavation type trench shield device includes a first frame inclined in one direction, a second frame spaced apart from the first frame, and a third frame connected to the first frame and the second frame, Mainframe containing; A pair of first excavating drums disposed in front of the first frame and arranged in a direction parallel to the first frame and arranged in a plurality of pairs in parallel with the first frame and cutting bits formed respectively on the outer circumferential surfaces of the second excavating drums, An excavating drum for excavating the entire surface and covering the excavated soil; A hydraulic drive motor driven by hydraulic pressure to simultaneously rotate the first excavation drum and the second excavation drum; A reaction force frame installed in a segment construction section formed at the rear of the main frame and contacting a side surface of the PC box segment to provide a reaction force; Four hydraulic actuators, one side of which is connected to the second frame, the other side of which is fastened to the corner of the reaction force frame and which pushes the excavating drum while being pressurized by hydraulic pressure; A breakdown jack for rotating the excavation drum at a predetermined angle in the lateral direction for a curved portion of the low depth excavation; An anti-slip barrier wall provided on both sides of the hydraulic actuator in contact with the first and second frames to prevent collapse of surrounding gravel in the segment construction interval; A bucket disposed between two hydraulic actuators positioned below the four hydraulic actuators; And a soil transfer device disposed at a lower portion where the first frame and the second frame are in contact with each other and extending to the bucket to transfer the gravel into the bucket through the drilling drum.

The step d) comprises the steps of: d1) transferring to the second bucket of the bucket by the operation of the soil transfer device after the soil deposited in the front excavation type trench shield device is seated on the soil transfer device; d2) a first one of the first bucket and the third bucket disposed on both sides of the second bucket is lifted by the bucket crane; d3) moving the second bucket and the third bucket where the first bucket is located; d4) placing the first bucket adjacent to the third bucket by the bucket crane after the soil removed into the inside of the third bucket is transferred to the inside of the front excavation type trench shield device; d5) after the second bucket is lifted by the bucket crane, the gravel inside the second bucket is drained out; And d6) repeating the steps d1) to d5).

In this case, the space between the main frame and the excavation drum is opened so that movement of the PC box segment is performed through the PC box segment lifting device.

Here, the PC box segment hoisting device is a ground crane, and the front excavation type trench shield device includes a segment construction section, which is a work space capable of accommodating the PC box segment vertically descending by the overhead crane, And the low-depth excavation is formed by installing and connecting the PC box segments in the segment construction period.

Meanwhile, there is provided a low deep excavation tunnel constructed by the low deep excavation rapid construction method using the front excavation type trench shield equipment.

According to the present invention, in the low depth drilling system, the workability can be improved by using a front trench shield appa- ratus including an excavating drum, an actuator, and a driving motor so as to excavate the entire surface in the direction of the film surface, Excavation can be done rapidly.

According to the present invention, it is possible to rapidly construct the low depth excavation by connecting the PC box segments at the same time as the excavation using the front excavation type trench shield equipment.

1 is a view for explaining an installation concept of a low-depth urban railway tunnel in a general low depth drilling system.
FIG. 2 is a view showing reduction in vehicle height through slimming of electrical equipment in a low depth drilling system. FIG.
3 is a view for explaining natural ventilation of a low depth drilling system.
FIGS. 4A and 4B are views showing the history of underground light rail and history of a low depth drilling system according to the prior art, respectively.
FIGS. 5A and 5B are views for schematically explaining the shape and construction process of a final tunnel structure when a underground light rail is constructed according to a conventional technique.
6 is a perspective view illustrating a front excavation type trench shield apparatus for constructing a low depth excavation according to a first embodiment of the present invention.
FIG. 7 is a view for explaining a front excavation type trench shield apparatus for constructing a low depth excavation according to a first embodiment of the present invention.
8 is a front view of a front excavation type trench shield device for constructing a low depth excavation according to a first embodiment of the present invention.
9A and 9B are views for explaining the drilling drum of FIG. 8 in detail.
10 is a view for explaining the hydraulic drive module of the front excavation type trench shield apparatus for constructing the low depth excavation according to the first embodiment of the present invention.
FIG. 11A is a view showing the direction of moving the soil according to the operation of the front excavation type trench shield apparatus for constructing the low depth excavation according to the first embodiment of the present invention.
11B is a view illustrating a bucket moving direction of a front excavation type trench shield apparatus for constructing low depth drilling according to the first embodiment of the present invention.
FIG. 12 is a view showing that the excavating drum can be detached from the front excavation type trench shield equipment for constructing the low depth excavation according to the first embodiment of the present invention.
13 is a perspective view illustrating a front excavation type trench shield apparatus for constructing a low depth excavation according to a second embodiment of the present invention.
FIG. 14 is a view showing rapid construction of low depth excavation using a front excavation type trench shield equipment according to a second embodiment of the present invention.
15 is a view for explaining a front excavation type trench shield device for constructing a low depth excavation according to a second embodiment of the present invention.
16 is a view for explaining a drilling drum in a front excavation type trench shield apparatus according to a second embodiment of the present invention.
17 is a view illustrating the type of drilling drum in the front excavation type trench shield equipment according to the first and second embodiments of the present invention.
18 is a side cross-sectional view of a front excavation type trench shield apparatus for constructing a low depth excavation according to a second embodiment of the present invention.
19 is a front view of a front excavation type trench shield apparatus for constructing a low depth excavation according to a second embodiment of the present invention.
20 is a plan view of a front excavation type trench shield device for constructing a low depth excavation according to a second embodiment of the present invention.
21 is a view showing a connection between an excavation drum and a drive motor in a front excavation type trench shield apparatus for constructing a low depth excavation according to the first and second embodiments of the present invention.
FIG. 22 is a diagram specifically showing a drive motor connected to a drilling drum denoted by reference numeral E in FIG. 21. FIG.
FIG. 23 is a view specifically showing an excavating drum connecting portion denoted by reference numeral F in FIG. 21. FIG.
FIG. 24 is a view showing the actual large-scale test of the front excavation type trench shield equipment according to the first embodiment of the present invention in order.
25 is an operational flowchart of a low depth drilling rapid construction method using the front excavation type trench shield equipment according to the first and second embodiments of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

[First Embodiment: Front Excavation Trench Shield Equipment (100) for Low Depth Excavation Rapid Construction)

FIG. 6 is a perspective view showing a front excavation type trench shield apparatus for constructing a low depth excavation according to a first embodiment of the present invention, FIG. 7 is a front view 1 is a view for explaining the excavation type trench shield equipment in detail.

The front-excavation-type trench shield apparatus 100 according to the first embodiment of the present invention includes a trench shield appa- ratus for excavating a ground in a horizontal direction so that PC box segments can be connected to construct a low depth excavation The main frame 110, the excavating drum 120, the hydraulic drive module 130, the hydraulic actuator 140, the stopping jack 150, the reaction force frame 160, the anti-slip barrier wall 170, A cutting bit 123 attached to the drilling drum 120 disposed in front of the main frame 110 while being propelled by the four hydraulic actuators 140, The excavating drums 120 are rotated in mutually opposite directions for respective adjacent two cylindrical drums to excavate the front gravels in front of the cutting bits 123. [

The main frame 110 may include a first frame 111, a second frame 112, and a third frame 113, as shown in FIGS.

The first frame 111 is arranged so that the single type of beams are perpendicular to each other to form a lattice structure. The first beams are arranged in parallel to each other and spaced apart from each other by a predetermined distance, and the second beams are arranged parallel to each other and spaced apart from each other by a predetermined distance. However, the first beams and the second beams have a grating structure arranged to be mutually perpendicular.

The first frame 111 is disposed so as to incline in a predetermined direction at a predetermined angle so that the excavating drum 120 for excavating the entire surface of the ground in the direction of the surface corresponding to the front of the first frame 111 is installed (Formed so as to be inclined forward) from the ground 300 so as to have an inclination of 45 to 60 degrees.

The second frame 112 has a lattice structure in which square holes are formed, and the second frame 112 has a shape that is orthogonal to the inside of the frame of 'ㅁ' shape. This second frame 112 is disposed in parallel with the reaction force frame 160 and is positioned at the center of the front-excavation-type trench shield apparatus 100 of the present invention.

The third frame 113 is formed to connect the first frame 111 and the second frame 112 together. More specifically, the third frame 113 is formed to cross one surface of the first frame 111 and one surface of the second frame 112 as shown in FIG. 7, and may be formed as needed to improve structural stability Ribs extending from the third frame 113 at predetermined angles and fixed to one surface of the second frame 112 may be formed.

8 is a front view of a front excavation type trench shield device for constructing a low depth excavation according to a first embodiment of the present invention.

The excavating drums 120 include a pair of first excavating drums 121 disposed in front of the first frame 111 in the film direction and arranged in a plurality of pairs in parallel with the first frames 111, 2 cutting bits 123 respectively formed on the outer circumferential surface of the excavating drum 122 excavate the entire surface of the ground 300 and excavate the excavated soil.

The excavating drums 120 are disposed adjacent to each other and the soil excavated between the first and second excavating drums 121 and 122 is clogged. The first and second excavating drums 121 and 122, Each of which can be connected to at least two cylindrical drums in the vertical direction.

7, the excavating drum 120 is disposed to have an inclination of 45 to 60 degrees to excavate the entire surface of the ground in the direction of the film surface, and the excavating drum 120 includes a first excavating drum 121, A second excavating drum 122 and a cutting bit 123. [

9A and 9B are views for explaining the drilling drum of FIG. 8 in detail.

The first excavating drum 121 may include a cylinder-shaped body having a rectangular through hole and an outer body surrounding the outer circumferential surface of the body. As shown in FIG. 9A, the outer body includes a plurality of outer bodies, They can have a stacked structure surrounded by the body.

Since the second excavating drum 122 has the same shape as the first excavating drum 121, a detailed description thereof is given above.

The cutting bits 123 may be formed on the outer circumferential surface of the outer body. More specifically, the cutting bit 123 is formed in the rotating direction on the outer circumferential surface of the first excavating drum 121 as shown in FIG. 9A. In the present invention, two cutting bits 123 are formed on one outer body However, the number of the cutting bits 123 may be appropriately changed and applied.

In FIG. 9A of the present invention, two cutting bits 123 are formed on one outer body and six outer bodies are formed, so that a total of twelve cutting bits 123 can be formed, Lt; RTI ID = 0.0 > 121 < / RTI > At this time, the angle formed by the pair of cutting bits 123 may be 30 degrees.

The cutting bit 123 is formed on the outer circumferential surface of the second excavating drum 122 as well as the first excavating drum 121 as described above.

17 is a view illustrating the type of drilling drum in the front excavation type trench shield equipment according to the first and second embodiments of the present invention.

The configuration of the cutting bits 123 formed on the outer circumferential surfaces of the first and second drilling drums 121 and 122 may be a point spiral, an all surface, an overlap, a wide lattice, It can be selected from the following types: Wide Spiral, Wide Vertical, Ascending Spiral, Descending Spiral.

FIG. 12 is a view showing that the excavating drum can be detached from the front excavation type trench shield equipment for constructing the low depth excavation according to the first embodiment of the present invention.

Further, wear and damage frequently occur in the excavating drum 120 in the process of excavating the ground 300 located on the front surface. Particularly, in the case of the cutting bit 123, there is a great possibility that abrasion or damage is more likely to occur. As shown in FIG. 12, when the first excavating drum 121 is worn or damaged, a new excavating drum 121 can be installed after the excavating drum 121 is removed, and the second excavating drum 122 is also detached It is possible structure.

The space between the main frame 110 and the excavation drum 120 is opened at the upper part so that the movement of the PC box segment 200 is performed through a ground crane that is a lifting device.

10 is a view for explaining the hydraulic drive module of the front excavation type trench shield apparatus for constructing the low depth excavation according to the first embodiment of the present invention.

The hydraulic drive module 130 may include a support plate 131, a hydraulic drive motor 132, a first rotation shaft 133, a first gear 134, a second rotation shaft 135 and a second gear 136 have.

The support plate 131 is a rectangular plate member, and is composed of a pair of upper and lower plates as shown in Fig. More specifically, the support plate 131 shown in the upper part has holes through which the hydraulic driving motor 132 and the second rotation shaft 135 can be inserted, respectively, and the support plate 131 shown below is provided with a first rotation shaft 133 and the second rotation shaft 135 can be inserted through the holes.

6, the support plate 131 is installed perpendicularly to one surface of the first frame 111. Between the pair of support plates 131, a hydraulic drive motor 132, a first gear 134 And the second gear 136 are positioned.

The hydraulic driving motor 132 is partly inserted into a hole formed in the support plate 131. The hydraulic driving motor 132 is driven by the hydraulic pressure so that the first excavating drum 121 and the second excavating drum 122 are driven at the same time .

The first rotary shaft 133 has a hexagonal column shape and is formed so as to be inserted into a hole passing through the center of the first excavating drum 121. More specifically, as shown in FIG. 10, the first rotating shaft 133 is positioned to pass through the support plate 131 located at the lower side.

The first rotating shaft 133 is integrally formed with the hydraulic driving motor 132 while passing through the center of the hydraulic driving motor 132. The first gear 134 is connected to the first rotating shaft 133 inserted into the center thereof, And when rotated by the hydraulic driving motor 132, rotates together to rotate the second gear 136 engaged with the first gear 134.

The first gear 134 may be a generally used spur gear as shown in FIG. 10, and may extend from the center of the first gear 134 in the form of a circular cylinder. The first gear 134 is located at a lower portion of the hydraulic drive motor 132 and the center of the first gear 134 is formed in a hexahedron shape corresponding to the first rotary shaft 133. The first rotation shaft 133 may be inserted into the center of the first gear 134.

The first gear 134 may be positioned in engagement with the second gear 136 through which the second rotation shaft 135 passes, And rotates the second gear 136 while rotating.

The second rotary shaft 135 has a circular cylinder shape, and one end thereof is formed into a hexagonal columnar shape as shown in FIG. 10 and inserted into the center of the second excavating drum 122.

One side of the second rotation shaft 135 formed in a hexagonal column shape passes through the support plate 131 located at the lower side and the other side of the second rotation shaft 135 formed in a circular shape is inserted into the upper part of the support plate 131 located at the upper side. .

The second rotation shaft 135 passes through the center of the second gear 136 and is formed integrally with the second gear 136. Also. The second rotation shaft 135 rotates as the first gear 134 rotates together with the second gear 136 rotating together.

The second gear 136 may be a generally used spur gear and may be engaged with the first gear 134. More specifically, the second rotation shaft 135 can be integrally inserted into the center of the second gear 136. When the first gear 134 rotates, the second gear 136 can rotate integrally with the first gear 134 And rotates the second rotation shaft 135 while rotating together with the second rotation shaft 135. [

The first excavating drum 121 connected to the first rotary shaft 133 and the second excavating drum 121 connected to the second rotary shaft 135 by the organic coupling and operation of the subcomponents of the hydraulic driving module 130, (122) can be rotated at the same time, so that the ground (300) can be excavated.

The hydraulic actuator 140 is connected to the second frame 112 at one side and the other side is connected to the corner of the reaction force frame 160 and pressurized by hydraulic pressure to advance the excavating drum 120, And four hydraulic actuators 140 as shown in FIG.

The cut-off jack 150 rotates the excavating drum 120 by a predetermined angle in the lateral direction for constructing the curved portion of the low depth excavation.

The reaction force frame 160 is installed in a segment construction zone formed behind the main frame 110 and contacts a side surface of the PC box segment 200 to provide a reaction force.

The soil erosion prevention wall 170 is provided on both sides of the hydraulic actuator 140 in contact with the first and second frames 111 and 112 to prevent collapse of surrounding gravel in the segment construction period.

FIG. 11A is a view showing the direction of moving the soil according to the operation of the front excavation type trench shielding apparatus for constructing the low depth excavation according to the first embodiment of the present invention, and FIG. FIG. 2 is a view showing a bucket moving direction of a front excavation type trench shield device for performing depth excavation.

The bucket 180 is disposed between the two hydraulic actuators 140 located below the four hydraulic actuators 140. The bucket 180 is connected to one of the two hydraulic actuators 140, A second bucket 182 adjacent to the first bucket 181 and a third bucket 183 adjacent to the second bucket 182.

The first bucket 181 is a hollow housing opened only at the top as shown in Figs. 11A and 11B. In addition, the first bucket 181 is disposed adjacent to the hydraulic actuator 140 located at the lower portion.

Since the second bucket 182 has the same shape as the first bucket 181, the second bucket 182 is disposed adjacent to the first bucket 181, And is transferred to the second bucket 182 by the transfer device 190.

Since the third bucket 183 has the same shape as the first and second buckets 181 and 182, a detailed description thereof will be omitted. However, the third bucket 183 is disposed adjacent to the second bucket 182.

The first to third buckets 181, 182, and 183 described above can be changed in position while linearly moving in one direction as shown in FIG. 11B. More specifically, the first bucket 181 is lifted by the bucket crane after the dirt is filled with the second bucket 182, and the second bucket 182 and the third bucket 183 are lifted by the bucket cranes toward the first bucket 181 And the first bucket 181 is lowered from the upper portion to the lower portion by the bucket crane and is disposed adjacent to the third bucket 183.

The above-described circulation process is repeatedly performed until the operation of the present invention is completed, and the gravel excavated by the excavation drum 120 through the circulation process can be disposed outside.

The soil transfer device 190 is disposed at a lower portion where the first frame 111 and the second frame 112 are in contact with each other and extends to the bucket 180 so that the gravel, 180). At this time, the soil transfer device 190 may be a soil conveying conveyor mainly used in civil engineering and construction sites.

[Second embodiment: front excavation type trench shield device 100 'for low deep excavation rapid construction]

FIG. 13 is a perspective view showing a front excavation type trench shield apparatus for constructing a low depth excavation according to an embodiment of the present invention, and FIG. 14 is a perspective view illustrating a bottom excavation type trench shield apparatus using a front excavation type trench shield apparatus according to an embodiment of the present invention. FIG. 15 is a view for explaining a front excavation type trench shield device for constructing a low depth excavation according to an embodiment of the present invention. Referring to FIG.

13, the front excavation type trench shield device 100 'for constructing the low depth excavation according to the embodiment of the present invention includes a ground excavation type trench shield device 100' for connecting the PC box segments and constructing low depth excavation A hydraulic excitation drum 120 ', a hydraulic drive module 130', a hydraulic actuator 140 ', a cut-off jack 150', a trench shield appa- ratus for excavating in the horizontal direction, A reaction force frame 160 ', and an anti-slip barrier wall 170'.

The main frame 110 'is disposed at a central portion to serve as a support, and is formed of, for example, a steel material.

The excavating drum 120 'is disposed in the direction of the film length in front of the main frame 110', and as shown in FIG. 15, cutting bits 123 'formed on the outer circumferential surfaces of the plurality of cylindrical drums arranged in the vertical direction, ) Excavates the entire surface of the ground (300), and excavates the excavated soil. At this time, a plurality of pairs of the first excavating drums 121 'and the second excavating drums 122', which are disposed adjacent to each other, are disposed in pairs, and the excavating drums 120 ' The first and second excavating drums 121 'and 122' are arranged in a vertical direction in a cylindrical shape, and the first and second excavating drums 121 'and 122' It is preferable that at least two drums are connected.

The hydraulic drive motor 132 'is driven by hydraulic pressure to simultaneously rotate the excavation drums 120' of two axes. For example, the hydraulic driving motor 132 'is preferably of a hydraulic type in order to transmit power for driving the excavating drum 120'. By externally connecting a power source to an external HPU (Hydraulic Power Unit) It is possible to secure the self clearance space of the front excavation type trench shield device 100 '.

Four hydraulic actuators 140 'may be disposed on one side of the main frame 110' and four sides of the hydraulic actuator 140 'on the opposite sides of the reaction frame 160'. The hydraulic actuators 140 ' To advance the drum 120 '.

The hinged jack 150 'may rotate the excavating drum 120' in the lateral direction by a predetermined angle for the curved portion construction of the low depth excavation.

The reaction force frame 160 'is installed in a segment construction zone formed behind the main frame 110' and contacts the side surface of the PC box segment 200 to provide a reaction force.

The anti-earths anti-collapse wall 170 'is installed on both sides of the hydraulic actuator 140' to prevent collapse of surrounding soil from the segment construction period.

Therefore, the front excavation type trench shield device 100 'according to the embodiment of the present invention is disposed in front of the main frame 110' while being driven by the four hydraulic actuators 140 'as shown in FIG. 14 The cutting bit 123 'attached to the excavating drum 120' is excavated while the excavating drum 120 'rotates in opposite directions for each adjacent two cylindrical drums, (123 ') excavate the gravel in the front.

16 is a view for explaining an excavating drum in a front excavation type trench shield apparatus according to an embodiment of the present invention. FIG. 17 is a sectional view of the excavating drum in the front excavation type trench shield apparatus according to the embodiment of the present invention. Fig.

In the front excavation type trench shield apparatus according to the embodiment of the present invention, as shown in FIG. 16A, a first excavating drum 121 'and a second excavating drum 122' As shown in FIGS. 16A and 16B, a structure in which the excavated soil is sandwiched between the first and second excavating drums 121 'and 122' is disposed in a plurality of pairs, (120 ') rotate in mutually opposite directions for each adjacent two cylindrical drums, and the cutting bit (123') excavates the gravel in front.

Referring to FIG. 17, in the front excavation type trench shield apparatus according to the embodiment of the present invention, in the case of the excavating drum 120 ', the installation form of the cutting bit 123' formed on the outer circumferential surface of the cylindrical drum is a point spiral Select from among the following: All Surface, Overlap, Wide Lattice, Wide Spiral, Wide Vertical, Ascending Spiral, Descending Spiral But is not limited to,

18 is a side cross-sectional view of a front excavation type trench shield apparatus for constructing low depth excavation according to an embodiment of the present invention, FIG. 19 is a front excavation type apparatus for constructing low depth excavation according to an embodiment of the present invention, 20 is a plan view of a front excavation type trench shield device for constructing a low depth excavation according to an embodiment of the present invention.

18, the front excavation type trench shield device 100 'for excavating the low depth excavation according to the embodiment of the present invention is excavated in a form similar to the TBM according to the conventional technology, The space between the main frame 110 'and the excavating drum 120' is opened at an upper part so that the movement of the excavating drum 200 is performed through a ground crane (not shown) as a segment lifting device.

19, in the front excavation type trench shield apparatus 100 'for constructing the low depth excavation according to the embodiment of the present invention, the excavation drums 120' And a second excavating drum are arranged in pairs, and the excavated soil is sandwiched between the first and second excavating drums, wherein each of the first and second excavating drums has a cylindrical drum Two or more are connected. At this time, as shown by the reference numeral D in FIG. 19, the drilling drum 120 'is connected to the hydraulic drive motor 132' so as to be gear-engaged so as to simultaneously rotate the pair of excavation drums 120 ' . Accordingly, the excavating drums 120 'of two axes can be simultaneously rotated by one hydraulic driving motor 132'.

20, in the front excavation type trench shield apparatus 100 'for constructing the low depth excavation according to the embodiment of the present invention, the reaction force frame 160' is formed on the main frame 110 ' And is provided in the segment construction space formed at the rear of the PC box segment 200 to provide a reaction force in contact with the side surface of the PC box segment 200 and to prevent the surrounding soil from being collapsed in the segment construction period, Are installed on both sides of the hydraulic actuator 140 '.

21 is a view illustrating a connection between a drilling drum and a drive motor in a front excavation type trench shield apparatus for constructing a low depth drilling according to an embodiment of the present invention, and FIG. 22 is a cross- FIG. 23 is a view specifically showing a drive motor connected to a drilling drum, and FIG. 23 is a diagram specifically showing an excavating drum connection portion denoted by reference numeral F in FIG.

21, in the front excavation type trench shield apparatus for constructing the low depth excavation according to the embodiment of the present invention, the excavation drum 120 'is inclined at an angle of 45 to 60 degrees to excavate the entire ground surface in the direction of the film surface Respectively.

FIG. 22 specifically shows the reference symbol E in FIG. 21 and shows that the hydraulic driving motor 132 'is connected to the upper portion of the excavating drum 120'. FIG. 23 is a cross- And an excavating drum connecting portion 124 'is formed so that at least two cylindrical drums of the excavating drums 120' can be connected. Accordingly, the excavating drums 120 'can be connected to each other by splitting without forming them long.

According to the embodiment of the present invention, in the low depth drilling system, the workability can be improved by using a trench shield apparatus comprising a drilling drum, an actuator and a drive motor so as to excavate the entire surface in the direction of the film surface And the tunnel can be constructed rapidly. In addition, PC box segments can be connected and installed at the same time by using front excavation type trench shield equipment.

[Example 1: Large scale test of front excavation type trench shield equipment]

FIG. 24 is a view showing the actual large-scale test of the front excavation type trench shield equipment according to the first embodiment of the present invention in order.

24A, the reaction force band is brought into close contact with the ground 300 and the torsion bar in a state where the torsion bar 300 having the ground 300 is formed as shown in FIG. 24A, To the reaction force platform. At this time, the rear support member and the front excavation type trench shield device 100 are connected by a separate device, and are in a close contact state, and the front excavation type trench shield device 100 is positioned in front of the rear support member.

Next, a low-depth excavation rapid installation method using a front-excavation-type trench shield apparatus according to a first embodiment of the present invention is characterized in that the front excavation-type trench shield apparatus 100 is moved toward the ground 300 You can advance. That is, a separate device operates to separate the front excavation type trench shield device 100 from the rear support. At this time, the excavating drum 120 of the front excavation type trench shield apparatus 100 is operated, and thus the soil excavated in the ground 300 is removed.

To this end, the front excavation type trench shield device 100 may further include a separate device capable of advancing and retracting in a sliding manner.

Then, as shown in FIG. 24C, the rear support is moved toward the front excavation-type trench shield apparatus 100, and is brought into contact with the front excavation-type trench shield apparatus 100.

Next, as shown in FIG. 24D, an H beam support is installed between the reaction force band and the rear support.

24E, the front excavation type trench shield device 100 is advanced toward the ground 300, and then the rear support platform moves toward the front excavation type trench shield device 100, The shielding device 100 is contacted.

When the above process is repeatedly performed, the ground 300 is excavated as shown in FIG. 24F.

[Embodiment 1: Low-depth excavation rapid installation method using front excavation type trench shield equipment]

25 is an operational flowchart of a low depth drilling rapid construction method using a front drilling type trench shield apparatus according to an embodiment of the present invention.

The low depth boring rapid construction method using the front excavation type trench shield apparatus according to the first embodiment of the present invention is characterized in that the main frame 110, the excavating drum 120, the driving motor 130, and the hydraulic actuator 140 are combined A method for constructing a low depth excavation using a front excavation type trench shield device (100) comprising the steps of: (a) installing a front excavation type trench shield device (100) for a low depth excavation installation in a trench groove (S110) b) operating the excavating drum 120 by driving the driving motor 130 of the front excavation type trench shield apparatus 100, c) operating the drilling drum 120 of the front excavation type trench shield apparatus 100, (S130) of excavating the soil in the direction of the surface direction (S130), d) removing the soil removed into the front excavation type trench shield apparatus 100 by the excavation drum 120 (S140), e) The hydraulic actuator 140 of the trench shield device 100 is propelled so that the PC box segment 2 (S150) of installing the PC box segment (200) in a vertical direction in the ensured segment construction period, and g) securing the installation space of the front excavation type trench shield device (100) (S170) repeatedly constructing the excavation and installation of the PC box segment (200) to form a low depth excavation, wherein excavation drums (120) of step c) 122, the cutting bits 123 formed on the outer circumferential surfaces of the first and second excavating drums 121, 122 excavate the gravel in front.

In the step a), trench grooves are formed at a predetermined depth in the lower part of the road, and a reaction force band is provided at a rear end of the trench grooves. Then, the front excavation type trench shield device 100 is inserted into the trench grooves.

The front excavation type trench shield device 100 includes a first frame 111 inclined in one direction, a second frame 112 spaced apart from the first frame 111, a first frame 111, A main frame 110 including a third frame 113 formed so as to connect the first frame 111 and the second frame 112, a main frame 110 arranged in front of the first frame 111 in parallel with the first frame 111, A pair of first excavating drums 121 and a pair of excavating drums 122 and a cutting bit 123 formed on the outer circumferential surfaces of the second excavating drums 122 excavate the entire surface of the ground 300, A hydraulic driving motor 132 that is driven by hydraulic pressure to simultaneously rotate the first excavating drum 121 and the second excavating drum 122, A reaction force frame (16) provided in a construction section and contacting the side surface of the PC box segment (200) 0), four hydraulic actuators 140, one end of which is connected to the second frame 112, the other end of which is connected to the corner of the reaction force frame 160 and which presses the excavating drum 120 by hydraulic pressure, The drilling drum 120 is rotatably supported on both sides of the hydraulic actuator 140 while being in contact with the first and second frames 111 and 112 in order to rotate the drilling drum 120 by a predetermined angle in the lateral direction for the construction of the curved portion of the low depth drilling. A bucket 180 disposed between the two hydraulic actuators 140 located at the bottom of the four hydraulic actuators 140 and a bucket 180 disposed between the two hydraulic actuators 140, A soil transfer device (not shown) disposed at a lower portion where the frame 111 and the second frame 112 are in contact with each other and which extends to the bucket 180 and transfers the soil to the bucket 180 by the drilling drum 120 190).

The space between the main frame 110 and the excavation drum 120 may be formed so that movement of the PC box segment 200 is performed through a PC box segment lifting device, And its upper portion is opened.

The PC box segment hoisting device is a ground crane, and the front excavation type trench shield device 100 includes a work space capable of accommodating the PC box segment 200 descending vertically by the overhead crane, And the PC box segment 200 is installed and connected in the segment construction period to form a low depth excavation.

During the above-mentioned step, the PC box segment 200 is installed and connected in the step f) simultaneously with the excavation of the digging drum 120 of the step c).

The step d) includes the steps of: d1) dredging the inside of the front-excavation type trench shield device 100 into the soil-conveying device 190, D2) the first bucket 181 of the first bucket 181 and the third bucket 183 disposed on both sides of the second bucket 182 are lifted by the bucket crane; d3) moving the second bucket 182 and the third bucket 183 to where the first bucket 181 was located, d4) moving the third bucket 183 to the front excavated trench shield equipment The first bucket 181 is disposed adjacent to the third bucket 183 by the bucket crane after the soil cloaked in the bucket cranes is transported to the bucket cranes 100 and d5) And d6) repeatedly performing the steps d1) to d5. The method according to claim 1, .

Therefore, the space between the main frame 110 and the excavation drum 120 is moved so that the movement of the PC box segment 200 is performed through the PC box segment lifting device, It is desirable that the top is open. For example, the PC box segment lifting device is a ground-based crane, and the front-excavation-type trench shield device 100 includes a work space capable of accommodating the PC box segment 200 descending vertically by the ground- And the PC box segment 200 may be installed and connected to the low-depth excavation in the segment construction period.

In addition, the low depth excavation can be performed by the low depth excavation rapid construction method using the above-mentioned front excavation type trench shield equipment.

[Second embodiment: rapid depth excavation rapid construction method using front excavation type trench shield equipment]

25 is an operational flowchart of a low depth drilling rapid construction method using a front drilling type trench shield apparatus according to an embodiment of the present invention.

Referring to FIG. 25, the low depth drilling rapid construction method using the front excavation type trench shield apparatus according to the embodiment of the present invention includes the main frame 110 ', drilling drum 120' shown in FIGS. 14 and 15 A method of constructing a low depth excavation using a front excavation type trench shield device 100 'in which a driving motor 130' and a hydraulic actuator 140 'are combined, The excavation type trench shield device 100 'is installed in the trench grooves (S110). For example, a trench groove is formed at a predetermined depth below the road, and a reaction force band is provided at the rear end of the trench groove. Then, the front-excavation type trench shield device 100 'is inserted into the trench groove.

15, the front-excavation-type trench shield device 100 'includes a main frame 110' disposed at a central portion to serve as a support, a front wall 110 'disposed in front of the main frame 110' A cutting bit 123 'formed on the outer circumferential surface of each of a plurality of cylindrical drums arranged in the vertical direction excavates the entire surface of the ground 300 and excavates the excavated soil, A hydraulic drive motor 132 'driven by the excavating drum 120' to simultaneously rotate the excavating drums 120 'of the two axes, and a hydraulic drive motor 132' installed at the segment construction space formed at the rear of the main frame 110 ' A reaction force frame 160 'which is in contact with a side surface of the reaction frame 160' to provide a reaction force, one side connected to the main frame 110 'and the other side connected to the edge of the reaction force frame 160' The drilling drum 120 ' A slope prevention wall 170 'provided on both sides of the hydraulic actuator 140' to prevent collapse of surrounding gravel in the segment construction period, and a curve of a low depth excavation And an abduction jack 150 'for rotating the excavation drum 120' in the lateral direction by a predetermined angle in order to perform an auxiliary operation.

Next, the excavating drum 120 'is operated by driving the driving motor 130' of the front excavation type trench shield device 100 '(S120).

Next, the excavating drum 120 'of the front excavation type trench shield device 100' totally excavates the ground in the direction of the closing direction (S130). At this time, the digging drums 120 'are rotated in mutually opposite directions for each adjacent two cylindrical drums, and the cut bits 123' formed on the outer circumferential surface of the cylindrical drums are excavated at the front side.

Subsequently, the excavated drum 120 'removes the clay that has been clogged into the front excavation type trench shield device 100' (S140).

Next, the hydraulic actuator 140 'of the front excavation type trench shield device 100' is propelled to secure a space for installing the PC box segment 200 (S150).

Next, the PC box segment 200 is installed perpendicularly to the ensured segment construction interval (S160).

Subsequently, the excavation of the front excavation type trench shield device 100 'and the installation of the PC box segment 200' are repeatedly performed to form low depth excavation (S170). Accordingly, the PC box segment 200 can be installed and connected at the same time as the digging drum 120 'of the front excavation type trench shield device 100' is pivoted.

Therefore, the front excavation type trench shield device 100 'is installed in the space between the main frame 110 and the excavation drum 120' so that the movement of the PC box segment 200 is performed through the PC box segment lifting device. It is desirable that the top is open. For example, the PC box segment lifting device is a ground-based crane, and the front-excavation-type trench shield device 100 'includes an operation portion capable of accommodating the PC box segment 200 descending vertically by the overhead crane And the PC box segment 200 may be installed and connected in the segment construction period to form a low depth excavation.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100, 100 ': Front drilled trench shield equipment
110, 110 ': Main frame
111: 1st frame
112: second frame
113: third frame
120, 120 ': drilling drum
121, 121 ': first drilling drum
122, 122 ': a second excavation drum
123, 123 ': Cutting bit
130, 130 ': Hydraulic drive module
131: Support plate
132, 132 ': Hydraulic drive motor
133: first rotating shaft
134: first gear
135:
136: Second gear
140, 140 ': Hydraulic actuator
150, 150 ': Jumper jack
160, 160 ': reaction force frame
170, 170 ': a slip-proof wall
180: Bucket
181: First bucket
182: second bucket
183: the third bucket
190: Earth moving device
200: PC box segment
300: ground

Claims (17)

A trench shield apparatus for excavating a ground in a horizontal direction so that a low-depth excavation can be carried out by connecting PC box segments,
A first frame 111 that is inclined in one direction, a second frame 112 that is spaced apart from the first frame 111, and a second frame 112 that is formed to connect the first frame 111 and the second frame 112 A main frame 110 including a third frame 113;
A pair of first excavating drums 121 and second excavating drums 122 arranged in front of the first frame 111 in the film direction and arranged in a plurality of pairs in parallel with the first frame 111, A drilling drum 120 for excavating the entire surface of the ground 200 and cutting off the excavated gravel, a cutting bit 123 formed on an outer circumferential surface of the ground 200,
A hydraulic drive motor 132 driven by hydraulic pressure to simultaneously rotate the first excavating drum 121 and the second excavating drum 122;
A reaction force frame (160) installed in a segment of the segment formed behind the main frame (110) and contacting the side surface of the PC box segment (200) to provide a reaction force;
Four hydraulic actuators 140 that are connected to the second frame 112, respectively, one side of which is connected to the corner of the reaction force frame 160, and which pushes the excavating drum 120 while being pressurized by hydraulic pressure;
An anti-slip barrier wall 170 provided on both sides of the hydraulic actuator 140 in contact with the first and second frames 111 and 112 to prevent collapse of surrounding gravel in the segment construction interval;
A bucket 180 disposed between the two hydraulic actuators 140 positioned below the four hydraulic actuators 140; And
The buckets 180 are disposed at a lower portion where the first frame 111 and the second frame 112 are in contact with each other and extend to the bucket 180 so that the buckets 180, A soil-borne transportation device 190 for transporting the soil-
Wherein the trench shield is formed of a trench. The method according to claim 1,
The bucket 180 includes a first bucket 181 adjacent to any one of the two hydraulic actuators 140 and a second bucket 182 and a second bucket 182 adjacent to the first bucket 181, And a third bucket 183 adjacent to the third bucket 183,
And the gravels flowing into the inside are transferred to the second bucket (182) by the soil transfer device (190). 3. The method of claim 2,
The first bucket 181 is lifted by the bucket crane after the dirt is filled with the second bucket 182,
The second bucket 182 and the third bucket 183 move toward the first bucket 181,
Wherein the first bucket (181) is lowered from the upper portion to the lower portion by the bucket crane and is disposed adjacent to the third bucket (183). The method according to claim 1,
The excavating drum 120 is excavated while the cutting bit 123 attached to the excavating drum 120 disposed at the front of the main frame 110 is driven by the four hydraulic actuators 140, Wherein each of the first and second drilling drums (121, 122) rotates in opposite directions to each other to excavate the gravel with the cutting bit (123) in front of the first and second drilling drums (121, 122). 5. The method of claim 4,
The excavating drums 120 are arranged adjacent to each other and the gravel excavated between the first and second excavating drums 121 and 122 is clogged. The first and second excavating drums 121 and 122 Wherein at least two trenches are connected in the vertical direction. 5. The method of claim 4,
Wherein the excavating drum (120) is disposed to have an inclination of 45 to 60 degrees to excavate the entire ground surface in the direction of the film surface. 5. The method of claim 4,
The form of the cut bits 123 formed on the outer circumferential surfaces of the first and second drilling drums 121 and 122 may be a point spiral, an all surface, an overlap, a wide lattice, Wherein the trench is selected from the group consisting of a wide spiral, a wide vertical, an ascending spiral, and a descending spiral. The method according to claim 1,
Characterized in that the space between the main frame (110) and the excavation drum (120) is open at the top so that movement of the PC box segment (200) is via a ground crane, which is a lifting device. Shield equipment. The method according to claim 1,
Further comprising a break jack (150) that rotates the excavation drum (120) at a predetermined angle in a lateral direction for a curved portion construction of the low depth excavation. There is provided a method of constructing a low depth excavation using a front excavation type trench shield apparatus 100 having a main frame 110, excavation drums 120, a drive motor 130, and a hydraulic actuator 140,
a) installing a front excavation type trench shield device (100) in a trench groove for low depth excavation construction;
b) operating excavation drum 120 by driving drive motor 130 of frontal excavation type trench shield device 100;
c) excavating the ground in the direction of the film surface by the excavation drum 120 of the front excavation type trench shield device 100;
d) removing the clay soil removed into the front excavation trench shield equipment (100) by the excavating drum (120);
e) propelling the hydraulic actuator (140) of the front excavation trench shield device (100) to secure a space for installing the PC box segment (200);
f) installing the PC box segment (200) in a vertical direction in the secured segment construction period; And
g) repeatedly constructing the excavation of the frontal excavation trench shield device 100 and the installation of the PC box segment 200 to form a low depth excavation
, ≪ / RTI &
The excavating drums 120 of the step c) are rotated in opposite directions to each other for the first and second excavating drums 121 and 122 so that the cutting bits formed on the outer circumferential surfaces of the first and second excavating drums 121 and 122 (123) is used to excavate the gravel in the forward direction. 11. The method of claim 10,
Wherein the PC box segment (200) is installed and connected at the same time as the excavation drum (120) of the step (c) is pivoted simultaneously with the step (f). 11. The method of claim 10,
The trench grooves are formed at a predetermined depth in the lower part of the road in step a) and the front excavation type trench shield device 100 is inserted into the trench grooves after the reaction force bar is installed at the rear end of the trench grooves Rapid Construction of Low Deep Excavation Using Front Excavation Trench Shield. 11. The apparatus of claim 10, wherein the front excavation type trench shield device (100)
A first frame 111 that is inclined in one direction, a second frame 112 that is spaced apart from the first frame 111, and a second frame 112 that is formed to connect the first frame 111 and the second frame 112 A main frame 110 including a third frame 113;
A pair of first excavating drums 121 and second excavating drums 122 arranged in front of the first frame 111 in the film direction and arranged in a plurality of pairs in parallel with the first frame 111, A drilling drum 120 for excavating the entire surface of the ground 200 and cutting off the excavated gravel, a cutting bit 123 formed on an outer circumferential surface of the ground 200,
A hydraulic drive motor 132 driven by hydraulic pressure to simultaneously rotate the first excavating drum 121 and the second excavating drum 122;
A reaction force frame (160) installed in a segment of the segment formed behind the main frame (110) and contacting the side surface of the PC box segment (200) to provide a reaction force;
Four hydraulic actuators 140 that are connected to the second frame 112, respectively, one side of which is connected to the corner of the reaction force frame 160, and which pushes the excavating drum 120 while being pressurized by hydraulic pressure;
An overturning jack (150) for rotating the excavation drum (120) in the lateral direction by a predetermined angle to construct a curved portion of the low depth excavation;
An anti-slip barrier wall 170 provided on both sides of the hydraulic actuator 140 in contact with the first and second frames 111 and 112 to prevent collapse of surrounding gravel in the segment construction interval;
A bucket 180 disposed between the two hydraulic actuators 140 positioned below the four hydraulic actuators 140; And
The buckets 180 are disposed at a lower portion where the first frame 111 and the second frame 112 are in contact with each other and extend to the bucket 180 so that the buckets 180, A soil-borne transportation device 190 for transporting the soil-
A method of rapid deep underground excavation using a full excavation trench shield device. 14. The method of claim 13,
The step d)
d1) After the soil deposited in the front excavation type trench shield device 100 is placed on the soil transfer device 190, the operation of the soil transfer device 190 causes the second bucket 182 );
d2) a first bucket 181 of a first bucket 181 and a third bucket 183 disposed on both sides of the second bucket 182 is lifted by a bucket crane;
d3) moving the second bucket (182) and the third bucket (183) to a position where the first bucket (181) is located;
d4) After the soil removed to the inside of the front excavation type trench shield device 100 is transferred into the third bucket 183, the first bucket 181 is moved by the bucket crane to the third bucket 183 ); ≪ / RTI >
d5) removing the soil from the inside of the second bucket (182) after the second bucket (182) is lifted by the bucket crane; And
d6) Repeating the steps d1) to d5). < Desc / Clms Page number 20 > 11. The method of claim 10,
The space between the main frame 110 and the excavating drum 120 is divided into a plurality of sections such that the movement of the PC box segment 200 is performed through the PC box segment lifting device, Wherein the trench shielding device is provided with a plurality of openings. 16. The method of claim 15,
The PC box segment hoisting device is a ground crane, and the front excavation type trench shield device 100 includes a work space capable of accommodating the PC box segment 200 descending vertically by the overhead crane, Wherein the PC box segment (200) is installed and connected to form a low depth excavation in the segment construction period. The low deep excavation rapid construction method as claimed in claim 1, wherein the PC box segment (200) A low depth-of-field tunnel constructed by a low depth drilling rapid construction method using a front drill type trench shield device according to any one of claims 10 to 16.

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