Segmented conversion type concrete supporting structure

Abstract

The utility model provides a sectional conversion type concrete supporting structure, which belongs to the technical field of large building supporting systems and comprises an underground connecting wall, a base and a plurality of force transmission supporting mechanisms, each force transmission supporting mechanism comprises a groove arranged on the upper surface of the base, an embedded steel plate and a rear steel plate are arranged in each groove, and the embedded steel plates and the rear steel plates are arranged in the grooves. Intelligent supporting equipment is fixedly arranged on the side wall of the embedded steel plate. According to the utility model, the force transmission supporting mechanism is arranged, further optimization is carried out on the basis of the traditional combined construction technology of the underground diaphragm wall and the concrete inner support, the original supporting system is locally converted through the construction design, and the intelligent axial force servo system is arranged, so that an integrated supporting structure which can be adjusted according to real-time monitoring data is formed; the device is simple in investment and implementation and obvious in action effect, by arranging the soil falling prevention mechanism, the intelligent supporting equipment in the groove can be protected to a certain degree, and meanwhile impurities on the two protection plates can be treated in an edited mode.

Description

Technical Field

[0001] The utility model relates to the technical field of large-scale building support systems, in particular to a segmented conversion type concrete support structure. Background Art

[0002] In order to ensure the construction safety of the adjacent subway tunnel and foundation pit retaining structure, the project added axial force support servo structures to the third and fourth concrete supports to control the horizontal displacement of the underground continuous wall on the subway side during foundation pit excavation, thereby reducing the adverse effects on the deformation of the subway tunnel. For deep and large foundation pits under complex geological environments, the retaining walls are supported along the length of the tunnel adjacent to key facilities such as subway tunnels. The risk points of wall displacement deformation often appear locally, and the potential deformation amounts near the subway side and far from the subway side are very different. Therefore, it is necessary to further optimize the construction technology to form an integrated support structure that can be adjusted according to real-time monitoring data. Compared with traditional technologies, the support action time is intervened in advance to carry out active deformation control, and real-time regulation is carried out according to the monitoring data, so as to reasonably control the deformation risk of the retaining structure.

[0003] The above prior art often has the following problems when used:

[0004] The traditional method is to intensify the concrete internal support system of the foundation pit. This solution has high construction costs, large labor input and construction period delays, and causes waste of resources. In addition, the dense concrete internal support structure greatly affects the vertical transportation and plane layout of the building structure in the foundation pit. The force transmission system of the concrete internal support is affected by the material properties of the concrete itself, and elastic deformation also has a potential impact on the displacement of the retaining wall. At the same time, after the construction of the concrete internal support structure is completed, the axial force can only be adjusted through its own structure, and it cannot cope with the deformation of the foundation pit enclosure caused by environmental influences under special circumstances. Overload or increased deformation rate, etc., and when the traditional support system is in use, dust, construction waste and soil on the construction site can easily enter the pit of the bearing system, requiring certain treatment measures. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a segmented conversion type concrete support structure.

[0006] The embodiment of the utility model provides a segmented conversion type concrete support structure, comprising:

[0007] Underground connecting walls and foundations;

[0008] A plurality of force transmission support mechanisms, wherein the force transmission support mechanism comprises a groove provided on the upper surface of the base, wherein the groove is provided with an embedded steel plate and a rear steel plate, wherein the side wall of the embedded steel plate is fixedly provided with an intelligent support device, wherein a sunken concrete support plate is fixedly provided outside the intelligent support device, wherein the side wall of the sunken concrete support plate is fixedly connected with a surrounding purlin, and the side wall on the other side of the surrounding purlin is fixedly connected with the side wall of the rear steel plate;

[0009] A plurality of soil-falling prevention mechanisms are provided, wherein the soil-falling prevention mechanisms include two symmetrical soil-falling prevention components, and a connecting block is provided between the two soil-falling prevention components.

[0010] Furthermore, the anti-soil falling assembly includes a fixing plate fixed on the side wall of the groove, the top end of the fixing plate is hinged with a protective plate, the side wall of the fixing plate is hinged with a support rod, a No. 1 sleeve is hinged on the outer side of the support rod, the top end of the No. 1 sleeve is hinged to the bottom surface of the protective plate, the side wall of the No. 1 sleeve is hinged with a sliding rod, a No. 2 sleeve is slidably sleeved on the outer side of the sliding rod, and the side wall of the No. 2 sleeve is fixedly connected to the side wall of the connecting block.

[0011] Furthermore, piers are provided between the plurality of force transmission support mechanisms, and a plurality of supporting bars are fixedly connected between the upper surface of the base and the side wall of the underground connecting wall.

[0012] Furthermore, the two anti-soil-falling components are symmetrically arranged about the connecting block, and a handle is fixedly connected to the upper surface of the connecting block.

[0013] Furthermore, the side walls of the two fixing plates are fixedly connected to the bearing plates, and the bottom surfaces of the two protective plates are respectively fitted with the upper surfaces of the two bearing plates.

[0014] Furthermore, the number of the force transmission support mechanisms corresponds to the number of the anti-soil falling mechanisms, and the upper surfaces of the plurality of protection plates are flush with the upper surface of the base.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model further optimizes the combined construction technology of traditional ground-connected wall and concrete inner support by setting a force transmission support mechanism, partially converts the original support system through construction design, sets an intelligent axial force servo system, forms an integrated support structure that can be adjusted according to real-time monitoring data, has high utilization rate of existing foundation pit support system, has low cost of various control adjustments when the original support design scheme does not meet the subsequent risk protection needs, effectively protects the deformation risk of the structure, and the supporting axial force of the intelligent servo system is changed from the original structural system itself to the hydraulic support equipment, so the energy conversion efficiency is improved, and the construction resource recovery rate is improved. Compared with the traditional technology, the support action time is intervened in advance to carry out active deformation control, the investment is simple, and the effect is obvious. By setting the anti-falling soil mechanism, the intelligent support equipment inside the groove can be provided with certain protection, and the impurities on the two protective plates can also be processed in an editable manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structural analysis of a segmented conversion type concrete support structure described in an embodiment of the utility model.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of a segmented conversion type concrete support structure described in an embodiment of the utility model.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of a segmented conversion type concrete support structure anti-soil falling mechanism described in an embodiment of the utility model.

[0020] In the above drawings: 1 underground connecting wall, 2 base, 3 groove, 4 embedded steel plate, 5 post-installed steel plate, 6 intelligent support equipment, 7 sinking concrete support plate, 8 surrounding purlin, 9 connecting block, 10 fixed plate, 11 protective plate, 12 support rod, 13 No. 1 sleeve, 14 sliding rod, 15 No. 2 sleeve, 16 pier, 17 support reinforcement, 18 bearing plate. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] like Figure 1-Figure 3 As shown, the embodiment of the utility model proposes a segmented conversion type concrete support structure, including:

[0023] An underground connecting wall 1, a base 2, and a plurality of force transmission support mechanisms. The force transmission support mechanism comprises a groove 3 arranged on the upper surface of the base 2, wherein a pre-buried steel plate 4 and a rear steel plate 5 are arranged in the groove 3, and an intelligent support device 6 is fixedly arranged on the side wall of the pre-buried steel plate 4. The intelligent support device 6 comprises a hydraulic jack, a displacement measuring and controlling meter, and a safety mechanical lock. The hydraulic jack provides support, and the displacement measuring and controlling meter feeds back the internal deformation, thereby realizing monitoring, and changing the support force that the hydraulic jack can provide through information feedback. A sinking concrete support plate 7 is fixedly arranged outside the intelligent support device 6, and a purlin 8 is fixedly connected to the side wall of the sinking concrete support plate 7, and the side wall of the purlin 8 is fixedly connected to the side wall of the rear steel plate 5. A pier 16 is arranged between the plurality of force transmission support mechanisms, and a plurality of supporting bars 17 are fixedly connected between the upper surface of the base 2 and the side wall of the underground connecting wall 1, and the plurality of supporting bars 17 are used to connect the base 2 and the underground connecting wall 1. When the support system provides support, the underground connecting wall 1 will not tilt under stress.

[0024] Multiple anti-soil falling mechanisms, the anti-soil falling mechanism includes two symmetrical anti-soil falling components, a connecting block 9 is provided between the two anti-soil falling components, the anti-soil falling component includes a fixing plate 10 fixedly arranged on the side wall of the groove 3, the top of the fixing plate 10 is hinged with a protective plate 11, the side wall of the fixing plate 10 is hinged with a support rod 12, the outer surface of the support rod 12 is connected with a No. 1 sleeve 13, the top of the No. 1 sleeve 13 is hinged with the bottom surface of the protective plate 11, the side wall of the No. 1 sleeve 13 is hinged with a sliding rod 14, and the outer sliding sleeve of the sliding rod 14 is connected with a No. 2 sleeve Tube 15, the side wall of the No. 2 sleeve 15 is fixedly connected to the side wall of the connecting block 9, the two anti-soil falling components are symmetrically arranged about the connecting block 9, the upper surface of the connecting block 9 is fixedly connected with a handle, which is convenient for the staff to operate, the side walls of the two fixed plates 10 are fixedly connected with the bearing plates 18, the bottom surfaces of the two protective plates 11 are respectively fitted with the upper surfaces of the two bearing plates 18, the number of force transmission support mechanisms corresponds to the number of anti-soil falling mechanisms, and the upper surfaces of the multiple protective plates 11 are flush with the upper surface of the base 2.

[0025] The detailed working process of the utility model is as follows:

[0026] A self-supporting axial force servo device is attached to the concrete inner support structure, and the servo support points are composed of hydraulic jacks, piers 16, and sunken concrete support plates 7. The purlin 8 structure coordinates each point and cooperates with the intelligent monitoring system to realize the linkage control of multiple points. Then, a reasonable dynamic force transmission system is formed in conjunction with the bracing and other structures to realize the axial force linkage pressure and assembly control of multiple intelligent servo points, which together form an integrated axial force servo system. The support axial force is controlled in real time according to the foundation pit deformation data to reduce displacement deformation, thereby comprehensively ensuring the safety of the foundation pit enclosure and adjacent protection objects;

[0027] The plurality of protective plates 11 are used to provide a certain protection for the interior of the groove. Some impurities, soil or garbage on the edge of the groove 3 will preferentially fall onto the protective plate 11 and accumulate on the protective plate 11, thereby providing a certain protection for the intelligent support device 6 in the groove 3. When the soil or garbage on the protective plate 11 needs to be processed, the connecting block 9 is pulled by the handle, and the connecting block 9 drives the No. 1 sleeve 13 to move through the No. 2 sleeve 15 and the sliding rod 14, and then the No. 1 sleeve 13 slides on the support rod 12, and the No. 1 sleeve 13 and the support rod 12 swing. At this time, the protective plate 11 will also swing, and the two protective plates will swing toward the edge of the groove 3 at the same time, so that the soil and garbage on the surfaces of the two will slide down and will not accumulate on the surface of the protective plate 11. After completion, under the deadweight of the protective plate 11, the anti-soil falling mechanism is reset again, which is convenient for the next operation. In this way, while achieving the protective effect, the garbage on the surfaces of the two protective plates 11 can also be processed at the same time, which has stronger practicality and convenience.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A segmented conversion concrete support structure, characterized in that: include: Underground connecting wall (1), base (2); A plurality of force transmission support mechanisms, the force transmission support mechanisms comprising a groove (3) provided on the upper surface of the base (2), an embedded steel plate (4) and a rear steel plate (5) being provided in the groove (3), an intelligent support device (6) being fixedly provided on the side wall of the embedded steel plate (4), a sunken concrete support plate (7) being fixedly provided on the outside of the intelligent support device (6), a purlin (8) being fixedly connected to the side wall of the sunken concrete support plate (7), and the other side wall of the purlin (8) being fixedly connected to the side wall of the rear steel plate (5); A plurality of soil-falling prevention mechanisms, each of which comprises two symmetrical soil-falling prevention components, with a connecting block (9) being provided between the two soil-falling prevention components.

2. The segmented conversion concrete support structure according to claim 1 is characterized in that: in: The anti-soil falling component comprises a fixing plate (10) fixed on the side wall of the groove (3), the top end of the fixing plate (10) is hingedly connected to a protective plate (11), the side wall of the fixing plate (10) is hingedly connected to a support rod (12), the outer surface of the support rod (12) is hingedly connected to a No. 1 sleeve (13), the top end of the No. 1 sleeve (13) is hingedly connected to the bottom surface of the protective plate (11), the side wall of the No. 1 sleeve (13) is hingedly connected to a sliding rod (14), the outer surface of the sliding rod (14) is slidably connected to a No. 2 sleeve (15), and the side wall of the No. 2 sleeve (15) is fixedly connected to the side wall of the connecting block (9).

3. The segmented conversion concrete support structure according to claim 1 is characterized in that: in: A plurality of buttresses (16) are provided between the plurality of force transmission support mechanisms, and a plurality of supporting ribs (17) are fixedly connected between the upper surface of the base (2) and the side wall of the underground connection wall (1).

4. The segmented conversion concrete support structure according to claim 1 is characterized in that: in: The two soil-fall prevention components are symmetrically arranged about the connection block (9), and a handle is fixedly connected to the upper surface of the connection block (9).

5. The segmented conversion concrete support structure according to claim 2 is characterized in that: in: The side walls of the two fixing plates (10) are fixedly connected to a bearing plate (18), and the bottom surfaces of the two protection plates (11) are respectively fitted with the upper surfaces of the two bearing plates (18).

6. The segmented conversion concrete support structure according to claim 2 is characterized in that: in: The number of the force transmission support mechanisms corresponds to the number of the soil-fall prevention mechanisms, and the upper surfaces of the plurality of protection plates (11) are flush with the upper surface of the base (2).

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