A translational structure for underground structures

Abstract

This utility model relates to the field of building engineering technology, specifically to a translational structure for an underground structure, comprising an underground structure located in a foundation pit below ground level. The foundation pit includes a translational track foundation pit in front of the underground structure and a jacking working pit behind the underground structure. The bottom of the underground structure is the original supporting soil layer, within which a translational track structure is embedded. A concrete slab is provided at the bottom of the translational track foundation pit, and the front end of the translational track structure extends through the original supporting soil layer and rests on the concrete slab. The translational track structure includes a translational track supported at the bottom, and a translational support beam slidably supported at the top of the translational track. The top of the translational support beam abuts against the bottom of the underground structure. Both the translational track and the translational support beam are made of type II steel.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a translational structure for underground structures. Background Technology

[0002] With the maturity of building relocation technology, many existing buildings have been preserved by overall relocation. The traditional method of relocating above-ground buildings involves constructing concrete support beams and concrete tracks at the bottom of the building foundation. However, underground structures are more difficult to relocate than above-ground buildings due to their deep burial. Constructing concrete support beams and concrete tracks at the bottom of underground structures is also more difficult. Traditional methods are costly and time-consuming. Utility Model Content

[0003] To address the problem that traditional methods are not applicable to underground structure relocation projects, this utility model provides an underground structure relocation structure.

[0004] The purpose of this utility model is achieved in the following manner: an underground structure translation structure, including an underground structure 1 located in a foundation pit below the ground plane, the foundation pit including a translation track foundation pit 2 in front of the underground structure 1 and a jacking working pit 3 behind the underground structure 1, the bottom of the underground structure 1 is the original supporting soil layer, the translation track structure is buried in the original supporting soil layer, the bottom of the translation track foundation pit 2 is provided with a concrete slab 4, the front end of the translation track structure passes through the original supporting soil layer and is located on the concrete slab 4. The translation track structure includes a translation track 6 supported at the bottom, a translation support beam 5 slidably supported at the top of the translation track 6, and the top of the translation support beam 5 abutting the bottom of the underground structure 1. Both the translation track 6 and the translation support beam 5 are made of type II steel.

[0005] Furthermore, the bottom plate of the translational support beam 5 has edging structures extending downward and inward on both sides, and the edging structures on both sides of the bottom plate of the translational support beam 5 cover the top plate of the translational track 6.

[0006] Furthermore, the height difference between the top of the concrete slab 4 and the top of the original supporting soil layer is equal to the sum of the heights of the translation track 6 and the translation support beam 5 ± 10 mm.

[0007] Furthermore, an asphalt felt 7 is provided between the bottom of the translation support beam 5 and the top of the translation track 6.

[0008] Furthermore, the translation track 6 is fixedly connected to the jacking bracket, the jacking bracket is fixedly connected to the body of the jack 12, and the output end of the jack 12 abuts against the tail end of the translation support beam 5.

[0009] Furthermore, continuous guardrails 13 are fixed to the ground around the foundation pit.

[0010] Compared with existing technologies, this utility model uses double-layered Type II steel to press into the soil layer at the bottom of the underground structure. The upper Type II steel supports the underground structure, and the lower Type II steel serves as a translation track. The upper Type II steel is then pushed from back to front, and the underground structure moves forward along the lower Type II steel. This method has the advantages of low cost, simple construction, and short cycle, and is suitable for the translation of underground structures. Attached Figure Description

[0011] Figure 1 It is a plan view of the underground structure's translational construction. Figure 2 It is a longitudinal cross-sectional view during the construction preparation for the translation of underground structures; Figure 3 It is a longitudinal cross-sectional view of the underground structure during the translation work; Figure 4 It is a cross-sectional view of the translational structure of the underground structure; Figure 5 This is a detailed drawing of the translation support beam and the translation track.

[0012] Among them, the underground structure 1, the translation track foundation pit 2, the jacking working pit 3, the concrete slab 4, the translation support beam 5, the translation track 6, the asphalt felt 7, the cavity 8, the first section 9, the second section 10, the soil excavation 11, the jack 12, and the guardrail 13. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] In this utility model, unless otherwise explicitly specified and limited, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] As attached Figure 1 , 3As shown in Figure 5, an underground structure translation structure includes an underground structure 1 located in a foundation pit below the ground level. The foundation pit includes a translation track foundation pit 2 in front of the underground structure 1 and a jacking working pit 3 behind the underground structure 1. The translation track foundation pit 2 is continuously excavated from the position of the underground structure 1 along a predetermined translation direction. The jacking working pit 3 is located around the underground structure 1 and behind it in the translation direction, and is used for preliminary construction and reserving jacking positions. The bottom of the underground structure 1 is the original supporting soil layer, and the translation track structure is buried in the original supporting soil layer. The original supporting soil layer is a soil slope structure that is higher than other bottom surfaces in the foundation pit, and is used to bury the translation track structure. A concrete slab 4 is provided at the bottom of the translation track foundation pit 2, and the front end of the translation track structure extends out of the original supporting soil layer and is located on the concrete slab 4. The translation track structure includes a translation track 6 supported at the bottom, a translation support beam 5 slidably supported at the top of the translation track 6, and the top of the translation support beam 5 abutting the bottom of the underground structure 1. Both the translation track 6 and the translation support beam 5 are made of type II steel.

[0016] Type II steel, such as Figure 5 As shown, it includes a top plate, a bottom plate, and two vertical plates between the top plate and the bottom plate. A cavity 8 is formed between the top plate, the bottom plate, and the two vertical plates. Preferably, the bottom plate of the translational support beam 5 has a edging structure extending downward and inward on both sides. The edging structure on both sides of the bottom plate of the translational support beam 5 covers the top plate of the translational track 6, forming a covering and limiting structure to ensure the stability of the sliding fit.

[0017] Furthermore, the height difference between the top of the concrete slab 4 and the top of the original supporting soil layer is equal to the sum of the heights of the translation track 6 and the translation support beam 5 ± 10mm, meaning that the translation track structure extending from the original supporting soil layer can be directly connected and supported to the top of the concrete slab 4.

[0018] The purpose of retaining a sufficient height of the original supporting soil layer is that concrete construction can be carried out in the foundation pit 2 of the translation track to form a concrete slab 4. However, since it is difficult to carry out concrete construction on the underground structure 1, the underground structure 1 lacks reliable support at the starting position. Therefore, the original supporting soil layer and the translation track structure are used together to form support. The translation support beam 5 and the underground structure 1 can also be further fixed by bolts and other anchors.

[0019] Furthermore, an oil felt 7 is provided between the bottom of the translation support beam 5 and the top of the translation track 6. The oil felt 7 can be fixed to either of them, or it can simply be laid between them.

[0020] Furthermore, the translation track 6 is fixedly connected to the jacking support, the jacking support is fixedly connected to the body of the jack 12, and the output end of the jack 12 abuts against the tail end of the translation support beam 5. Preferably, the translation track 6 and the jacking support are bolted together, and the translation track 6 is provided with fixed holes at intervals. Whenever the underground structure 1 is pushed out a certain distance, the position of the jacking support on the translation track 6 is re-disassembled and adjusted.

[0021] Furthermore, continuous guardrails 13 are fixed to the ground around the foundation pit.

[0022] The working process of this utility model is as follows: Step 1: Excavate the soil around the underground structure 1 until the underground structure 1 is completely exposed above the ground. Move the structure forward and excavate the transfer track foundation pit 2 until the new site is reached. Move the structure backward and excavate the jacking working pit 3. Then construct (pour) the concrete slab 4 at the bottom of the transfer track foundation pit 2. If necessary, tie the steel truss first to improve the strength of the concrete slab 4. Step 2: Both the translation support beam 5 and the translation track 6 are type II steel. The lower flange of the translation support beam 5 is fastened to the upper flange of the translation track 6, and an oil felt 7 is placed in between to facilitate the sliding between the translation support beam 5 and the translation track 6 during the translation process. There is a cavity 8 in the middle of the type II steel. Step 3: As Figure 2 As shown, a jacking support and jacks 12 are installed in the pit. The translation support beam 5 and translation track 6 are simultaneously pressed horizontally into the soil layer from the bottom of the rear end of the underground structure 1 according to the design spacing until they are exposed from the other end of the underground structure 1. Step 4: The translation support beam 5 and the translation track 6 can be pressed into the soil layer in sections. After the first section 9 is pressed in, the second section 10 is welded in afterward, and then the pressing into the soil layer continues. In order to reduce the pressing resistance, the soil within the cavity 8 of the type II steel should be emptied first. Step 5: After all the flat II-type steel translation support beams 5 and translation tracks 6 are pressed into the soil layer under the underground structure 1, the translation tracks 6 are laid on the concrete slab 4, with the position corresponding to the translation tracks 6 under the underground structure 1, and welded to the translation tracks 6 at the bottom of the underground structure 1 to form a whole as a complete translation lower track. Step 6: After the translation is completed, the translation track 6 is extended appropriately, and then the jacking support and jack 12 are installed on it. The jack 12 pushes the translation support beam 5, and the translation support beam 5 and the translation track 6 slide horizontally. The underground structure 1 moves forward along the translation track 6. During this process, the jacking support and jack 12 are continuously disassembled and adjusted until the new site is reached. Step 7: Before moving underground structure 1, the soil covering it should be removed, the interior should be cleaned, and reinforcement should be carried out as needed. Equipment, lines and pipes installed on underground structure 1 should be removed. Wall panels with openings should be reinforced and protected in advance. Guardrails 13 should be installed at the edge of the pit.

[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A method for translating an underground structure, comprising an underground structure (1) located in a foundation pit below ground level, the foundation pit comprising a translation track foundation pit (2) in front of the underground structure (1) and a jacking working pit (3) behind the underground structure (1), characterized in that: The bottom of the underground structure (1) is the original supporting soil layer, and a translation track structure is buried in the original supporting soil layer. A concrete slab (4) is set at the bottom of the translation track foundation pit (2). The front end of the translation track structure passes through the original supporting soil layer and is located on the concrete slab (4). The translation track structure includes a translation track (6) supported at the bottom, a translation support beam (5) slidably supported at the top of the translation track (6), and the top of the translation support beam (5) abuts against the bottom of the underground structure (1). Both the translation track (6) and the translation support beam (5) are type II steel.

2. The underground structure translational construction method as described in claim 1, characterized in that: The bottom plate of the translation support beam (5) has a edging structure extending downward and inward on both sides, and the edging structure on both sides of the bottom plate of the translation support beam (5) covers the top plate of the translation track (6).

3. The underground structure translation structure as described in claim 1, characterized in that: The height difference between the top of the concrete slab (4) and the top of the original supporting soil layer is equal to the sum of the heights of the translation track (6) and the translation support beam (5) ± 10 mm.

4. The underground structure translation structure as described in claim 1, characterized in that: A felt (7) is provided between the bottom of the translation support beam (5) and the top of the translation track (6).

5. The underground structure translation structure as described in claim 1, characterized in that: The translation track (6) is fixedly connected to the jacking bracket, which is fixedly connected to the body of the jack (12). The output end of the jack (12) abuts against the tail end of the translation support beam (5).

6. The underground structure translation structure as described in claim 1, characterized in that: A continuous guardrail (13) is fixed on the ground around the foundation pit.

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