Anti-settlement structure for reconstruction and expansion soft foundation section of expressway

Abstract

The utility model relates to the technical field of civil engineering, and discloses an expressway reconstruction and expansion soft foundation section anti-settlement structure which comprises an expansion connection anchor rod part and a soft foundation bracket part, an anchor rod piece is fixedly connected to the hard foundation side in an expansion foundation pit, a longitudinal connection batten with a transverse supporting batten welded to the lower end is connected to the anchor rod piece, and the soft foundation bracket part is fixedly connected to the expansion connection anchor rod part. When the soft foundation road section is expanded, connection between the expansion road section and the original expressway section is more convenient, meanwhile, the supporting brackets are welded to the transverse supporting plate strips, then concrete is poured into the expansion foundation pit provided with the supporting brackets, and the bottom foundation nets are fixedly welded between the adjacent transverse supporting plate strips. The bottom foundation net can hold and support poured concrete, and meanwhile the transverse supporting battens connected with the longitudinal connecting battens can be pulled by the longitudinal connecting battens, so that the anti-sedimentation effect on the soft foundation road section is better.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, in particular to an anti-settling structure for a soft foundation section of a highway reconstruction and expansion project. Background Art

[0002] Roadbed refers to a strip structure built as the foundation of the road surface according to the route location and certain technical requirements. It is the foundation of railways and highways. The roadbed is a linear structure built with soil or stone. From the material point of view, the roadbed can be divided into three types: soil roadbed, stone roadbed, and earth-stone roadbed. At the same time, the roadbed is also a structure that directly supports the track formed by filling or excavation. It is also called the line substructure. Soft soil roadbed refers to a common roadbed in special areas, which requires special design and treatment. It is mostly distributed in rivers, rivers, ocean coasts, inland lakes, ponds, basins and rainy mountain depressions.

[0003] When a highway is renovated or expanded, a soft foundation section will be encountered in the expansion section. Anti-subsidence treatment is required for expansion in the soft foundation section. The existing anti-subsidence treatment method uses concrete pouring to carry out anti-subsidence treatment on the soft foundation section. However, the concrete pouring method makes it inconvenient to connect the expansion section with the original highway section, and the anti-subsidence effect is general. Utility Model Content

[0004] The utility model provides a soft foundation section anti-settling structure for highway reconstruction and expansion, so as to solve the problems in the prior art.

[0005] The technical problem solved by the utility model is achieved by the following technical solutions:

[0006] An anti-settlement structure for a soft foundation section of a highway reconstruction and expansion, comprising:

[0007] An expansion connection anchor rod portion, the expansion connection anchor rod portion comprising an anchor rod member fixedly connected in the expansion foundation pit and connected to the hard foundation and a longitudinal connection strip connected to the anchor rod member;

[0008] The soft base support portion includes a transverse supporting strip fixedly welded to the lower end of the longitudinal connecting strip and a supporting bracket fixedly welded to the upper end of the transverse supporting strip, and a base net is fixedly welded between adjacent transverse supporting strips.

[0009] In a specific embodiment, the anchor member includes an expansion bolt sleeve and a long screw threadedly connected in the expansion bolt sleeve, and an auxiliary hanging head is welded at one end of the long screw, and the auxiliary hanging head is used to hook the retaining net.

[0010] In a specific embodiment, the longitudinal connecting strips include a strip portion and a connecting hole portion formed on the strip portion.

[0011] In a specific embodiment, the anchor rod members are connected in the connecting hole portion, and the anchor rod members are arranged in at least three groups.

[0012] In a specific embodiment, the transverse supporting strip includes a welding end for connecting to the lower end of the longitudinal connecting strip and a support plate end arranged on the transverse supporting strip for welding the supporting bracket.

[0013] In a specific embodiment, the support bracket includes a reinforcing support pipe column fixedly welded to the end of the support plate and a support plate seat welded to the upper end of the reinforcing support pipe column.

[0014] In a specific embodiment, a first grouting port is provided on the reinforced support pipe column, and a second grouting port is provided on the support plate seat, and the second grouting port is connected to the inner cavity of the reinforced support pipe column.

[0015] In a specific embodiment, the first grouting port is located on the peripheral side of the reinforced support pipe column, and the second grouting port is located directly above the reinforced support pipe column.

[0016] In a specific embodiment, the first grouting port is a long hole, and the length direction of the first grouting port is parallel to the length direction of the reinforced support column.

[0017] In a specific embodiment, the base mesh is a member made of steel mesh material.

[0018] The beneficial effects of the utility model are:

[0019] The anchor rod is fixedly connected to the hard base side in the expansion foundation pit, and the longitudinal connecting strip with a transverse supporting strip welded at the lower end is connected to the anchor rod, so that when the soft foundation section is expanded, the connection between the expanded section and the original expressway section is more convenient. At the same time, the support bracket is welded to the transverse supporting strip, and then the concrete is poured in the expansion foundation pit provided with the support bracket. The base net is fixedly welded between adjacent transverse supporting strips, and the base net can support the poured concrete. At the same time, the transverse supporting strip connected to the longitudinal connecting strip can be pulled by the longitudinal connecting strip, so that the anti-subsidence effect on the soft foundation section is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a side structural schematic diagram of the utility model.

[0023] Figure 3 This is a schematic diagram of the structure of the expansion connection anchor rod part of the utility model.

[0024] Figure 4 It is a schematic diagram of the structure of the soft base support seat of the utility model.

[0025] In the figure: 100, expansion connection anchor rod part; 110, anchor rod; 111, expansion bolt sleeve; 112, long screw; 113, auxiliary hanging head; 120, longitudinal connection slat; 121, slat part; 122, connection hole part; 200, soft base support part; 210, transverse support slat; 211, welding end; 212, support plate end; 220, support bracket; 221, reinforced support pipe column; 222, support plate seat; 201, first grouting port; 202, second grouting port; 230, base mesh. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0027] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0028] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] Reference Figure 1-Figure 4 As shown, the utility model provides an anti-settling structure for a soft foundation section of a highway reconstruction and expansion, comprising:

[0036] The expansion connection anchor rod part 100 includes an anchor rod member 110 fixedly connected in the expansion foundation pit and connected to the hard foundation, and a longitudinal connection strip 120 connected to the anchor rod member 110;

[0037] The soft base support portion 200 includes a transverse support slat 210 fixedly welded to the lower end of the longitudinal connecting slat 120 and a support bracket 220 fixedly welded to the upper end of the transverse support slat 210 , and a base mesh 230 is fixedly welded between adjacent transverse support slats 210 .

[0038] The anchor member 110 is fixedly connected to the hard base side in the expansion foundation pit, and the longitudinal connecting strip 120 with a transverse supporting strip 210 welded at the lower end is connected to the anchor member 110, so that when the soft foundation section is expanded, the connection between the expanded section and the original highway section is more convenient, and the support bracket 220 is welded to the transverse supporting strip 210, and then the concrete is poured in the expansion foundation pit provided with the support bracket 220, and the base mesh 230 is fixedly welded between adjacent transverse supporting strips 210, and the base mesh 230 can support the poured concrete, and the transverse supporting strip 210 connected to the longitudinal connecting strip 120 can be pulled by the longitudinal connecting strip 120, so that the anti-settling effect on the soft foundation section is better.

[0039] As a further preferred embodiment of the above embodiment, the anchor member 110 includes an expansion bolt sleeve 111 and a long screw 112 threadedly connected in the expansion bolt sleeve 111, and an auxiliary hanging head 113 is welded at one end of the long screw 112, and the auxiliary hanging head 113 is used to hook the retaining net. The retaining net is hooked on the auxiliary hanging head 113, so that the retaining net can block the hard bottom foundation side in the expansion foundation pit to prevent the debris from falling.

[0040] As a further preferred embodiment of the above embodiment, the longitudinal connecting slat 120 includes a slat portion 121 and a connecting hole portion 122 opened on the slat portion 121 .

[0041] Furthermore, the anchor members 110 are connected in the connecting hole portions 122, and at least three groups of anchor members 110 are arranged. In conventional settings, the anchor members 110 are connected to the upper, middle and lower positions of the longitudinal connecting slats 120. When reinforcement is required, additional anchor members 110 can be installed in the connecting hole portions 122 at other positions, thereby increasing the number of installed anchor members 110 to achieve the purpose of reinforcing the connection with the hard base side.

[0042] As a further preferred embodiment of the above embodiment, the transverse supporting slat 210 includes a welding end 211 for connecting to the lower end of the longitudinal connecting slat 120 and a support plate end 212 arranged on the transverse supporting slat 210 for welding the support bracket 220.

[0043] As a further preferred embodiment of the above embodiment, the support bracket 220 includes a reinforcing support column 221 fixedly welded to the support plate end 212 and a support plate seat 222 welded to the upper end of the reinforcing support column 221 .

[0044] Furthermore, a first grouting port 201 is provided on the reinforcing support column 221, and a second grouting port 202 is provided on the support plate seat 222. The first grouting port 201 is located on the peripheral side of the reinforcing support column 221, and the second grouting port 202 is located directly above the reinforcing support column 221 and communicates with the inner cavity of the reinforcing support column 221; preferably, the first grouting port 201 is a long hole, and the length direction of the first grouting port 201 is parallel to the length direction of the reinforcing support column 221. The opening of the first grouting port 201 and the second grouting port 202 enables concrete to enter the reinforcing support column 221 when pouring concrete, thereby achieving the purpose of enhancing the firmness of the reinforcing support column 221.

[0045] As a further preferred embodiment of the above embodiment, the base mesh 230 is a member made of a steel mesh material. The base mesh 230 can support the poured concrete.

[0046] In summary, the utility model provides an anti-settlement structure for the soft foundation section of the highway reconstruction and expansion, wherein the anchor member 110 is fixedly connected to the hard base side in the expansion pit, and the longitudinal connecting slats 120 with the transverse supporting slats 210 welded at the lower end are connected to the anchor member 110, so that when the soft foundation section is expanded, the connection between the expanded section and the original highway section is more convenient, and the support bracket 220 is welded to the transverse supporting slats 210, and then concrete is poured in the expansion pit provided with the support bracket 220, and the base mesh 230 is fixedly welded between adjacent transverse supporting slats 210, the base mesh 230 can support the poured concrete, and the transverse supporting slats 210 connected to the longitudinal connecting slats 120 can be pulled by the longitudinal connecting slats 120, so that the anti-settlement effect on the soft foundation section is better.

[0047] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An anti-settlement structure for soft foundation section of expressway reconstruction and expansion, characterized in that: include: An expansion connection anchor rod portion (100), the expansion connection anchor rod portion (100) comprising an anchor rod member (110) fixedly connected in an expansion foundation pit and connected to a hard foundation, and a longitudinal connection strip (120) connected to the anchor rod member (110); A soft base support portion (200), the soft base support portion (200) comprising a transverse support strip (210) fixedly welded to the lower end of the longitudinal connecting strip (120) and a support bracket (220) fixedly welded to the upper end of the transverse support strip (210), and a base mesh (230) fixedly welded between adjacent transverse support strips (210).

2. The anti-settlement structure for soft foundation section of expressway reconstruction and expansion according to claim 1 is characterized by: The anchor rod (110) comprises an expansion bolt sleeve (111) and a long screw rod (112) threadedly connected in the expansion bolt sleeve (111); an auxiliary hanging head (113) is welded to one end of the long screw rod (112); and the auxiliary hanging head (113) is used for hooking the retaining net.

3. The anti-settling structure for soft foundation section of expressway reconstruction and expansion according to claim 2 is characterized by: The longitudinal connecting strip (120) comprises a strip portion (121) and a connecting hole portion (122) formed on the strip portion (121).

4. The anti-settlement structure for soft foundation section of expressway reconstruction and expansion according to claim 3 is characterized by: The anchor rod members (110) are connected in the connection hole portion (122), and at least three groups of the anchor rod members (110) are provided.

5. The anti-settlement structure for soft foundation section of expressway reconstruction and expansion according to claim 3 is characterized by: The transverse supporting strip (210) includes a welding end (211) for connecting to the lower end of the longitudinal connecting strip (120) and a supporting plate end (212) arranged on the transverse supporting strip (210) for welding the supporting bracket (220).

6. The anti-settlement structure for soft foundation section of expressway reconstruction and expansion according to claim 5 is characterized by: The support bracket (220) comprises a reinforced support pipe column (221) fixedly welded to the support plate end (212) and a support plate seat (222) welded to the upper end of the reinforced support pipe column (221).

7. The anti-settlement structure for soft foundation section of expressway reconstruction and expansion according to claim 6 is characterized by: The reinforced support pipe column (221) is provided with a first grouting port (201), and the support plate seat (222) is provided with a second grouting port (202), wherein the second grouting port (202) is connected to the inner cavity of the reinforced support pipe column (221).

8. The anti-settlement structure for soft foundation section of expressway reconstruction and expansion according to claim 7 is characterized by: The first grouting port (201) is located on the peripheral side of the reinforcing support pipe column (221), and the second grouting port (202) is located directly above the reinforcing support pipe column (221).

9. The anti-settlement structure for soft foundation section of expressway reconstruction and expansion according to claim 7 is characterized by: The first grouting port (201) is a long hole, and the length direction of the first grouting port (201) is parallel to the length direction of the reinforced support column (221).

10. The anti-settlement structure for soft foundation section of expressway reconstruction and expansion according to claim 1, characterized in that: The base net (230) is a component made of steel net material.

Images