JPH06317100A - Elevator device for underground work and underground construction method using the device - Google Patents

Abstract

PURPOSE:To eliminate an extra winch for post splicing or any hazardous under ground works and allow performing the underground works safely and effective ly. CONSTITUTION:An elevator device 1 for underground works is composed of a post 3 capable of being spliced and separated, an elevator 5 mounted on the post 3 and capable of elevating and sinking along the post 3, and a post elevator supporting frame 8 in which an upper bracket 6 capable of supporting the top of the post 3 or releasing and a lower bracket 7 capable of supporting the elevator 5 or releasing are installed, wherein the frame 8 is set upon the ground. The processes of supporting the top of the post 3 by this frame 8 and elevating and sinking the elevator 5 along the post 3, to carry out the underground works, and the processes of splicing an extension post 3'' to the top of the post 3 by the frame 8 part and sinking it to extend the post to underground are repeated alternately, and thereby the underground works are conducted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus for underground construction which can be used easily and safely, and an underground construction method using the same.

[0002]

2. Description of the Related Art At present, the construction elevators used for underground construction are the elevators for construction work on the ground, which are continuously added to the upper floors, and, on the contrary, are added underground as the underground construction progresses. It is used in various ways. That is, as shown in FIG. 11, when constructing a structure underground, as the underground is sequentially dug down from the ground floor a to the first floor b, the second floor c, and the third floor d, the construction elevator e The elevating post f is extended downward. As this extension method, a post that is added from the crane g that is brought to the ground floor a is hung, and this is added to the bottom post. There is. However, there is a problem in that the work of adding a post that is aligned with the post at the lower end in a narrow underground space is dangerous, inefficient, and requires an extra crane g.

[0003]

DISCLOSURE OF THE INVENTION The present invention solves the problem of the elevator used in the conventional underground construction described above, and does not require an extra hoisting machine or dangerous underground work for post addition.
It is an object of the present invention to provide an elevator device for underground construction and a underground construction method using the same, which enables safe and efficient underground construction.

[0004]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a post which is vertically movable by a post guide and which can be freely added and detached, an elevator which can be vertically moved along the post, and a post. A post-elevator support frame of an elevator device for underground construction, which comprises an upper bracket that supports or releases the upper end of the elevator and a post-elevator support frame that incorporates a lower bracket that supports or releases the elevator, is installed on the ground. The upper bracket of the post-elevator support frame supports the upper end of the post, and the elevator is moved up and down along the post to perform underground construction.The elevator is supported by the lower bracket of the post-elevator support frame to support the post-elevator support frame. Release the support on the upper edge of the post of the upper bracket of In addition, the extension post is added to the upper end of the post, and then the elevator lifting motor is driven while the elevator is supported by the lower bracket to lower the post, and the upper bracket of the post elevator support frame supports the upper end of the extension post. At the same time, it is characterized by an underground construction method using an elevator device for underground construction, in which the elevator support of the lower bracket is released and the steps of extending the posts underground are repeated alternately to perform underground construction.

[0005]

As described above, according to the present invention, since the extension post can be replenished by the post elevator support frame portion installed on the ground, an extra lifting machine is not required and the work safety is ensured. The post-stage changeover time is shortened, the elevator work down time is reduced, and work efficiency is improved.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 is a side view of an elevator apparatus for underground work of the present invention, FIG. 2 is a plan view of a post support portion of a post elevator support frame of the elevator apparatus, and FIG. 3 is a plan view of a post guide portion of a post of the elevator apparatus. FIG. 4 is a front view of the post guide part, FIG. 5 is a side view of the post guide part, and FIGS. 6 to 10 are explanatory views sequentially showing a procedure of an underground construction method using the elevator device for underground construction. Figure 1,
In FIG. 2, reference numeral 1 is an elevator apparatus for underground construction of the present invention, and the elevator apparatus 1 for underground construction comprises a unit post 3'that can be added and detached and is supported by a plurality of post guides 2 so as to be movable up and down. Post 3 with the required number of connections
An elevator 5 that is mounted on the post 3 and is mounted on the airframe along the post 3 along the post 3 and is capable of self-elevating and an upper bracket 6 that is installed on the ground and that supports or releases the upper end of the post 3 And a post-elevator support frame 8 to which a lower bracket 7 that supports and releases the elevator 5 is assembled.
As shown in FIGS. 3, 4, and 5, the post guide 2 has three rollers 11 surrounding three vertical frames 10 on the mountain retaining wall 9 side of the post 3 from three sides, which are attached to a roller bracket 12. , Allowing the post 3 to move up and down,
It prevents the swinging in the front, rear, left and right directions.

An underground construction method using the elevator device 1 for underground construction will be described below with reference to FIGS. 6 to 10.
At the time when the first digging of the underground construction is completed, first, the post elevator support frame 8 is installed on the ground of the underground construction site, and the upper bracket 6 of the post elevator support frame 8 is provided with the first underground digging depth. Supporting the upper end of the post 3 connecting the unit posts 3'to a length substantially equal to, the post 3 hangs down to the underground construction site, and the connecting parts of the hanging post 3 and the like are post-guided to the mountain retaining wall 9. 2, the elevator 5 is attached to the post 3, the elevator device 1 for underground construction is assembled, and the elevator 5 is vertically moved to perform underground construction (FIG. 6). When the first stage underground construction is completed, the next stage underground excavation is carried out, and when this is completed, elevator 5
Is raised to the position of the post-elevator support frame 8 and the lower bracket 7 of the retracted post-elevator support frame 8 is pushed to the lower part of the elevator 5 to support the elevator 5 on the lower bracket 7 (FIG. 7). Next, the post support of the upper bracket 6 of the post elevator support frame 8 that supports the upper end of the post 3 is released and the upper bracket 6 is repelled, and the upper end of the post 3 has a length corresponding to the depth of the next step. Extension post 3 ″ of FIG. 8 is added (FIG. 8). At this time, the total weight of the post is reduced by releasing the support of the post 3 of the upper bracket 6 above.
It will be supported by the drive part of the elevator 5 supported by. After that, while the elevator 5 is supported by the lower bracket 7, the lifting motor 4 is driven in the ascending direction of the elevator 5 to lower the post 3, and the upper end of the extended post 3 ″ that has been added up is the post elevator support frame 8. When the position of the upper bracket 6 coincides with the position of the upper bracket 6, the lowering is stopped, the upper bracket 6 is inverted to support the upper end of the extension post 3 ″, and the key points of the extended post 3 are attached to the mountain retaining wall 9 via the post guide 2. It is supported so that it can move up and down (Fig. 9). Next, the lower bracket 7 of the post-elevator support frame 8 that was supporting the elevator 5 is pulled in, the support of the elevator 5 is released, the elevator 5 is resumed to move up and down, and the underground work of the next digging portion is performed (Fig. 1).
0). After that, the above procedure is repeated to extend the post 3 underground to perform underground construction. When all the construction is completed and the elevator apparatus 1 is withdrawn, the above procedure may be reversed.

[0008]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, an elevator mounted on a post of an underground work elevator apparatus is driven up and down along the post to perform underground work, and the post is extended downward as the underground work progresses. If you want to do this, add a post of the required length to the upper end of the post, drive the elevator lifting motor while the elevator is supported by the lower bracket, lower the post, and extend the post underground to proceed with underground construction. Therefore, the post can be extended easily on the ground without the need for extra equipment such as lifting machines or underground work, ensuring the safety of workers and shortening the post extension changeover time. The effect is that the downtime of elevator work is reduced and work efficiency is improved.

[0009]

[Brief description of drawings]

FIG. 1 is a side view of an elevator device for underground construction according to the present invention.

FIG. 2 is a plan view of a post support portion of a post elevator support frame of the elevator apparatus.

FIG. 3 is a plan view of a post guide portion of a post of the elevator apparatus.

FIG. 4 is a front view of the post guide portion.

FIG. 5 is a side view of the post guide portion.

FIG. 6 is a side view showing a state in which the elevator device for underground construction of the present invention is assembled and installed after the first underground digging.

FIG. 7 is a side view showing a state where the elevator is supported by the lower bracket of the post-elevator support frame after the subsequent underground excavation.

FIG. 8 is a side view showing a state in which the upper post support by the upper bracket of the post elevator support frame is released, and the extension post is connected to the upper post.

FIG. 9 is a side view showing a state in which an elevator motor is driven while the elevator is supported by the lower bracket to lower the post, and the upper end of the post is supported by the upper bracket of the post elevator support frame.

FIG. 10 is a side view showing a state where the elevator support of the lower bracket of the post-elevator support frame is released and the elevator ascending / descending is resumed.

FIG. 11 is a schematic explanatory view showing how to assemble a conventional underground construction elevator.

[0010]

[Explanation of symbols]

 1 Elevator device for underground construction 2 Post guide 3 Post 3'Unit post 3 ″ Extension post 4 Elevator lifting motor 5 Elevator 6 Post upper bracket of bracket supporting frame 7 Lower bracket of post elevator supporting frame 8 Post elevator supporting frame 9 Mountain clasp Wall 10 Post vertical frame 11 Post guide roller

Claims (2)

[Claims] 1. A post that can be added and separated freely and is supported by a post guide so as to be movable up and down, an elevator that can move up and down along the post, and an upper bracket and an elevator that can support or release the upper end of the post. An elevator device for underground construction, which comprises a post-elevator support frame incorporating a lower bracket which can be supported or released. 2. A post that can be added and separated freely and is supported by a post guide so as to be movable up and down, an elevator that can be raised and lowered along the post, and an upper bracket and an elevator that can support or release the upper end of the post. A post-elevator support frame for an underground installation elevator system, which is composed of a post-elevator support frame that incorporates a lower bracket that can be supported or unsupported, is installed on the ground, and the upper bracket of the post-elevator support frame supports the upper end of the post. Then, the process of performing underground construction by driving the elevator up and down along the post, and supporting the elevator on the lower bracket of the post elevator support frame, releasing the support of the post upper end of the upper bracket of the post elevator support frame, Add an extension post to the top of the post and While the elevator is supported by the lower bracket, drive the elevator lift motor to lower the post, support the upper end of the extension post on the upper bracket of the post elevator support frame, and release the elevator support of the lower bracket to remove the post. An underground construction method using an elevator device for underground construction, which is characterized in that underground construction is carried out by alternately repeating the process of extending underground.