Detachable arc-shaped bracket deviation rectifying support

Abstract

The utility model relates to the technical field of constructional engineering foundations, and discloses a detachable arc-shaped bracket deviation rectifying support device for open caisson construction, which comprises a left-area detachable supporting piece, a right-area detachable supporting piece, a middle-area anchoring piece, a rubber pad, a weighing sensor, a strain sensor, a limiting hole and a balancing weight. Wherein the left-area detachable supporting piece and the right-area detachable supporting piece are vertically inserted and assembled in an open caisson limiting hole through the middle-area anchoring piece, rubber pads are pasted on the contact faces of the left-area supporting piece and the right-area supporting piece and the inner side wall of an open caisson to prevent structural damage, and the top faces of the left-area supporting piece and the right-area supporting piece are each provided with a weighing sensor. A strain sensor is installed on the external slope of the left area supporting piece. The open caisson deviation rectifying support has the advantages of being convenient to disassemble and assemble, high in safety and the like, and the use efficiency of the open caisson deviation rectifying support can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering foundations, in particular to a caisson foundation correction device for construction engineering. Background Art

[0002] Large, deep-buried caissons, as an important underground structure and deep-buried foundation, are widely used in municipal, highway, and railway projects. During construction, caissons are susceptible to construction disturbances due to uneven underground rock and soil properties, leading to engineering problems such as tilting. Traditional methods typically involve excavating the soil at the bottom of the caisson for adjustment or using back-pressure jacks for correction. Existing correction brackets, typically in the form of corbels, have drawbacks such as a small load-bearing area, inability to withstand excessive weight, and susceptibility to damage. Utility Model Content

[0003] Starting from the arc shape, it is better adapted to the circular caisson, and at the same time has the advantages of simple structure, easy disassembly, strong load-bearing capacity and reusability.

[0004] This utility model aims to overcome the shortcomings of the existing technology by providing a detachable curved corbel correction bracket. By applying counterweights of varying weights to the bracket in different directions, the tilt of the caisson structure is corrected based on the bending moment deviation caused by the weight. Incorporating a strain sensor ensures the structural safety of the curved corbel correction bracket.

[0005] The technical solution of this utility model:

[0006] A detachable arc-shaped corbel deviation correction bracket, comprising: a middle area anchor piece, a left area detachable support piece and a right area detachable support piece;

[0007] The left and right detachable support members have connecting portions with a plurality of anchor holes. The number, size, and spacing of the holes in the left and right detachable support members are the same.

[0008] The central anchoring piece has a plurality of anchoring rods, the number of which is the same as the number of anchoring holes of the detachable supporting pieces in the left and right areas;

[0009] The left and right detachable support members are assembled through a connecting part and placed above the caisson wall. The anchor rod of the middle anchor member is vertically inserted into the anchor holes of the left and right detachable support members and the limiting holes opened on the caisson to achieve fixation.

[0010] Furthermore, rubber pads are pasted in the gaps between the left and right detachable supports and the inner and outer walls of the caisson.

[0011] Furthermore, the detachable arc-shaped corbel correction bracket also includes a weighing sensor, which is arranged on the top surface of the detachable support members in the left and right areas to measure the gravity load above.

[0012] Furthermore, the detachable arc-shaped corbel correction bracket also includes a strain sensor, which is arranged on the outer inclined surface of the left area support member, and is used to measure the stress state of the key nodes of the left area support member to ensure the safety of the bracket structure.

[0013] Furthermore, the left-area detachable support member and the right-area detachable support member are made of steel.

[0014] Furthermore, the detachable arc-shaped corbel correction bracket also includes a left-area counterweight block, a middle-area counterweight block and a right-area counterweight block; the left-area counterweight block, the middle-area counterweight block and the right-area counterweight block are respectively placed above the left-area detachable support member, the middle-area anchor member and the right-area detachable support member to adjust the counterweight distribution.

[0015] Furthermore, the angle between the outer inclined surfaces of the left and right area supports and the caisson is 45°.

[0016] Furthermore, the contact surface between the detachable arc-shaped corbel correction bracket and the caisson wall is an arc-shaped structure, and the curvature is set according to the curvature of the caisson; when the curvature is 0, it is suitable for square caissons.

[0017] The beneficial effects of the utility model are:

[0018] The contact surface between the utility model and the caisson wall is an arc-shaped structure, which is more stable and has a certain bending strength. The radial force is more suitable for the circular caisson than the plane force.

[0019] The device of the utility model has a modular structure and is easy to assemble and use.

[0020] The utility model adopts the method of zoning weights in the left, middle and right areas, which is more conducive to accurate configuration of load bearing and deviation correction.

[0021] The utility model adopts strain and weighing sensors, which is beneficial to further protect the caisson wall and structure and avoid damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structural details of the detachable arc-shaped corbel correction bracket of the utility model;

[0023] Figure 2 This is a schematic diagram of the counterweight state of the detachable arc-shaped corbel correction bracket of the utility model;

[0024] Figure 3 This is a schematic diagram of the position of the detachable arc-shaped bracket for correcting deviation of the utility model on the caisson;

[0025] Figure 4It is a schematic diagram of the hoisting and splicing of the detachable arc-shaped corbel correction bracket of the utility model. Description of the drawings:

[0027] Middle area anchor 1, left area detachable support 2, right area detachable support 3, rubber pad 4, weighing sensor 5, strain sensor 6, limit hole 7, caisson 8, left area counterweight block 9, middle area counterweight block 10, right area counterweight block 11, crane 12. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figure 1 、 Figure 2 As shown, the utility model is a detachable arc-shaped bracket correction bracket, which comprises: a middle area anchor 1, a left area detachable support 2, a right area detachable support 3,

[0030] The left-area detachable support member 2 and the right-area detachable support member 3 have connecting parts with a plurality of anchor holes. The number, size and spacing of the holes in the left and right detachable support members are the same and can be used together.

[0031] As an embodiment, the number of openings of the left and right detachable support members is 3.

[0032] The central anchor 1 has a number of anchor rods, the number of which is the same as the number of anchor holes in the left and right detachable support members;

[0033] The specific connection method is: the left area detachable support member 2 and the right area detachable support member 3 are assembled through the connecting part and placed above the caisson wall. The anchor rod of the middle area anchor member 1 is vertically inserted into the anchor holes of the left and right area detachable support members and the limiting hole 7 opened on the caisson 8 to achieve fixation.

[0034] Furthermore, rubber pads 4 are pasted in the gaps between the left and right detachable supports and the inner and outer walls of the caisson;

[0035] Furthermore, the detachable arc-shaped corbel correction bracket also includes a weighing sensor 5, which is arranged on the top surface of the left and right area supports to measure the gravity load above.

[0036] Furthermore, the detachable arc-shaped corbel correction bracket also includes a strain sensor 6, which is arranged on the outer inclined surface of the left area support member and is used to measure the stress state of the key nodes of the left area support member to ensure the safety of the bracket structure.

[0037] Furthermore, the left-area detachable support member 2 and the right-area detachable support member 3 are made of steel, which has good strength and bending rigidity, and has a certain dead weight, and can be used as a counterweight.

[0038] Furthermore, the present invention includes a left-zone counterweight 9, a middle-zone counterweight 10, and a right-zone counterweight 11. During actual construction, as needed, the left-zone counterweight 9, middle-zone counterweight 10, and right-zone counterweight 11 can be placed above the left-zone detachable support 2, the middle-zone anchor 1, and the right-zone detachable support 3, respectively, to adjust the counterweight distribution. The horizontal height deviation of the caisson can be adjusted by adjusting the bending moment deviation caused by the weight of the counterweights, thereby achieving precise control of the corrective counterweights.

[0039] Furthermore, the angle between the outer inclined surfaces of the left and right area supports and the caisson is 45°.

[0040] Furthermore, the contact surface between the detachable arc-shaped corbel correction bracket and the caisson wall is an arc-shaped structure, and the curvature is set according to the curvature of the caisson; the curvature can also be adjusted to 0 and applied to square caissons.

[0041] The utility model is applicable to different caisson wall widths. As an embodiment, the caisson wall width is 1.2m.

[0042] According to the actual engineering needs, multiple devices of the present invention are evenly arranged on the caisson in accordance with symmetry, generally set to an even number; as an embodiment, four detachable arc-shaped brackets are arranged on the caisson, and correspondingly, four groups of limiting holes are set on the caisson, and the number of limiting holes in each group is 3. Figure 3 .

[0043] In actual use scenarios, the use of the detachable arc-shaped bracket correction bracket of the utility model includes the following steps: (refer to Figure 4 )

[0044] a) Site leveling: Before installing the device of this utility model, the site around the caisson should be leveled.

[0045] b) Installing the device of the utility model: Before the caisson is sunk, the device is hoisted and assembled using a crane.

[0046] c) Loading with concrete counterweights: After the installation of the device of the utility model is completed, it should be checked whether it is firmly installed. When the caisson tilts during the sinking process, use a crane to place the counterweights in the corresponding left, middle and right areas to achieve uneven weighting. Determine the weight of the counterweights and the correction effect of the caisson based on the weighing sensor, calculate the weight of the counterweights that need to be applied further, and then complete the precise correction. At the same time, observe the stress state of the correction bracket measured by the strain sensor to ensure the safety of the bracket. The above counterweight calculation and correction methods are all existing technologies and are not the content of the technical solution of the utility model.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A detachable arc-shaped bracket for correcting deviation, characterized in that: include: a middle zone anchor, a left zone removable support, and a right zone removable support; The left and right detachable support members have connecting portions with a plurality of anchor holes. The number, size, and spacing of the holes in the left and right detachable support members are the same. The central anchoring piece has a plurality of anchoring rods, the number of which is the same as the number of anchoring holes of the detachable supporting pieces in the left and right areas; The left and right detachable support members are assembled through a connecting part and placed above the caisson wall. The anchor rod of the middle anchor member is vertically inserted into the anchor holes of the left and right detachable support members and the limiting holes opened on the caisson to achieve fixation.

2. A detachable arc-shaped bracket for correcting deviation according to claim 1, characterized in that: Paste rubber pads in the gaps between the left and right detachable supports and the inner and outer walls of the caisson.

3. A detachable arc-shaped bracket for correcting deviation according to claim 1, characterized in that: The detachable arc-shaped corbel correction bracket also includes a weighing sensor, which is arranged on the top surface of the detachable support members in the left and right areas and is used to measure the gravity load above.

4. A detachable arc-shaped bracket for correcting deviation according to claim 1, characterized in that: The detachable arc-shaped corbel correction bracket also includes a strain sensor, which is arranged on the outer inclined surface of the left area support member and is used to measure the stress state of the key nodes of the left area support member to ensure the safety of the bracket structure.

5. The detachable arc-shaped bracket for correcting deviation according to claim 1, characterized in that: The left-area detachable support member and the right-area detachable support member are made of steel.

6. A detachable arc-shaped bracket for correcting deviation according to claim 1, characterized in that: The detachable arc-shaped corbel correction bracket also includes a left-area counterweight block, a middle-area counterweight block and a right-area counterweight block; the left-area counterweight block, the middle-area counterweight block and the right-area counterweight block are respectively placed above the left-area detachable support member, the middle-area anchor member and the right-area detachable support member to adjust the counterweight distribution.

7. The detachable arc-shaped bracket for correcting deviation according to claim 1, characterized in that: The included angle between the outer inclined surfaces of the left and right zone support members and the caisson is 45°.

8. The detachable arc-shaped bracket for correcting deviation according to claim 1, characterized in that: The contact surface between the detachable arc-shaped corbel correction bracket and the caisson wall is an arc-shaped structure, and the curvature is set according to the curvature of the caisson; when the curvature is 0, it is suitable for square caissons.

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