Turnover pile foundation steel casing structure
By designing a reusable pile foundation steel casing structure, including a steel plate construction platform, outer casing, first guide component, and inner casing, the problems of steel cage and concrete waste were solved, achieving cost reduction and material recycling.
Patent Information
- Application Number
- CN202423297171.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing steel casing structures suffer from waste of steel and concrete during construction due to factors such as drilling location and other factors, resulting in high production costs.
The pile foundation steel casing structure is reusable, including a steel plate construction platform, an outer casing, a first guide component, an inner casing, and a second guide component. Through the design of the guide component, the inner diameter of the inner casing is reduced, the amount of steel cage and concrete used is reduced, and the outer casing can be disassembled and reused.
This reduces the amount of steel cage and concrete used, lowers production costs, and the outer casing can be recycled, saving materials.
Smart Images
Figure CN223675317U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pile foundation construction technical field, concretely relates to a recyclable pile foundation steel casing structure. BACKGROUND
[0002] Steel casing is steel casing used to protect hole pile in unstable soil pile foundation construction, prevent hole collapse and affect construction progress and safety.
[0003] The existing steel casing structure includes single steel cylinder, in construction, first lower steel cylinder, lower and complete steel reinforcement cage installation, lower, clean hole, concrete pouring and so on. When the pile cap construction, the steel casing above the pile cap bottom elevation is removed, but, this kind of steel casing structure has the following shortcomings:
[0004] Due to the drilling position and other factors, the steel cylinder inner diameter must be greater than the pile foundation size, then need larger size steel reinforcement cage and concrete, then can cause material waste, further improve production cost. UTILITY MODEL CONTENTS
[0005] In view of the deficiencies of prior art, the utility model solves the technical problem to provide a recyclable pile foundation steel casing structure, can save production material in the pile foundation installation process, thereby saving production cost.
[0006] In order to realize the above-mentioned purpose, the utility model is through the following technical scheme to realize: a recyclable pile foundation steel casing structure, comprising:
[0007] Steel plate construction platform, the steel plate construction platform middle part is equipped with the through hole that passes through up and down, the size of the through hole is greater than the outer diameter of pile foundation;
[0008] Outer casing, the outer diameter of the outer casing is greater than the outer diameter of the pile foundation but less than the diameter of the through hole;
[0009] First guide piece, be provided on the steel plate construction platform, the first guide piece is provided with the first guide hole coaxial with the through hole, the diameter of the first guide hole is equal to the outer diameter of the outer casing;
[0010] Inner casing, the inner casing is inserted in the outer casing, the inner diameter of the inner casing is greater than the outer diameter of the pile foundation;And
[0011] Second guide piece, detachably provided on the steel plate construction platform, the second guide piece is provided with the second guide hole coaxial with the through hole, the diameter of the second guide hole is equal to the outer diameter of the inner casing.
[0012] Further, the first guide piece includes a plurality of first guide rods, and the end portions of the plurality of first guide rods extend into the through hole.
[0013] Further, the first guide rod comprises an I-shaped steel bar and an arc-shaped steel plate, the I-shaped steel bar is welded and fixed on the steel plate construction platform, the arc-shaped steel plate is fixed on the end of the I-shaped steel bar extending into the through hole, and the middle part of the arc-shaped steel plate protrudes towards the center of the through hole.
[0014] Further, the second guide piece has four.
[0015] Further, the second guide piece comprises a plurality of second guide pieces, and the end of the plurality of second guide pieces extends into the through hole.
[0016] Further, a fixing steel plate is further included, and the fixing steel plate is welded between the inner casing and the outer casing.
[0017] The beneficial effects of the utility model are as follows:
[0018] The above-mentioned recyclable pile foundation steel casing structure comprises a steel plate construction platform, an outer casing, a first guide piece, an inner casing and a second guide piece.
[0019] The inner casing is inserted into the outer casing, and the inner diameter of the inner casing is greater than the outer diameter of the pile foundation.
[0020] The above-mentioned recyclable pile foundation steel casing structure has the following advantages:
[0021] 1. Due to the adoption of the inner and outer casings, the inner diameter of the inner casing can be reduced, thereby reducing the occupied space for installing the steel reinforcement cage and pouring concrete, and further reducing the amount of steel and concrete, thereby achieving the effect of reducing the cost.
[0022] 2. After use, the outer casing can be completely removed and recycled, thereby further achieving the purpose of saving materials. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the specific embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the specific embodiments. In all the drawings, the elements or parts are not necessarily drawn according to the actual proportion.
[0024] Figure 1 A top view of the recyclable pile foundation steel casing structure provided by the embodiment of the present application is shown in the figure;
[0025] Figure 2 For Figure 1 A top view of the recyclable pile foundation steel casing structure provided by the embodiment of the present application is shown in the figure;
[0026] Figure 3 For Figure 1 A schematic view of the fixed steel plate arranged between the outer casing and the inner casing in the recyclable pile foundation steel casing structure is shown in the figure;
[0027] Figure 4 For Figure 1 A schematic view of the first guide rod in the recyclable pile foundation steel casing structure is shown in the figure;
[0028] Reference signs:
[0029] 100, steel plate construction platform; 200, outer casing; 300, first guide; 310, first guide rod; 311, I-beam; 312, arc-shaped steel plate; 400, inner casing; 500, second guide; 600, fixed steel plate. DETAILED DESCRIPTION
[0030] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the scope of the present application, so the present application is not limited to the specific embodiments disclosed below.
[0031] Please refer to Figures 1 to 4 The present application provides a recyclable pile foundation steel casing structure, which comprises a steel plate construction platform 100, an outer casing 200, a first guide 300, an inner casing 400 and a second guide 500.
[0032] Specifically, a through hole passing through up and down is formed in the middle of the steel plate construction platform 100. The size of the through hole is greater than the outer diameter of the pile foundation. The outer diameter of the outer casing 200 is greater than the outer diameter of the pile foundation but less than the diameter of the through hole. The outer casing 200 serves as the outer wall of the pile foundation hole drilling process, which plays a role in ensuring the pile foundation hole diameter during construction. In specific implementation, the outer casing 200 is greater than the hole diameter (pile foundation) by 30 cm according to the specification requirements, and the wall thickness is 14 mm.
[0033] The first guide 300 is arranged on the steel plate construction platform 100, and a first guide hole coaxial with the through hole is arranged on the first guide 300. The diameter of the first guide hole is equal to the outer diameter of the outer casing 200.
[0034] In the embodiment, the first guide 300 includes a plurality of first guide rods 310. In the actual construction, the number of the first guide 300 should be greater than two, and preferably four for the convenience of installation and the improvement of positioning accuracy. The end of the plurality of first guide rods 310 extends into the through hole. In the construction, the outer casing 200 is hoisted by the hoisting device, and the outer casing 200 passes through the first guide hole, and the outer wall of the outer casing 200 is tightly attached to the end of the first guide 300. The outer casing 200 plays a role of guiding and limiting.
[0035] In other embodiments, the first guide 300 can also adopt the form of a limiting steel ring. The inner diameter of the limiting steel ring is adapted to the outer diameter of the outer casing 200.
[0036] In the embodiment, the first guide 300 includes an I-beam 311 and an arc-shaped steel plate 312. The ready-made I-beam 311 is convenient to obtain. In general, the I-beam 14 is used. The I-beam 311 is welded and fixed on the steel plate construction platform 100, the arc-shaped steel plate 312 is fixed on the end of the I-beam 311 extending into the through hole, and the middle part of the arc-shaped steel plate 312 protrudes towards the center of the through hole, so that a good guiding effect can be achieved. The thickness of the arc-shaped steel plate 312 can be 1 cm.
[0037] The inner casing 400 is inserted into the outer casing 200, and the inner diameter of the inner casing 400 is greater than the outer diameter of the pile foundation.
[0038] In the actual implementation, the inner casing 400 can be processed from a Q235B steel plate with a wall thickness of 0.4 cm, and the inner diameter is 5 cm larger than the pile diameter.
[0039] The second guide 500 is detachably arranged on the steel plate construction platform 100, and the second guide 500 is provided with a second guide hole coaxial with the through hole, and the diameter of the second guide hole is equal to the outer diameter of the inner casing 400.
[0040] In the embodiment, the second guide 500 plays a role of positioning the inner casing 400 and temporarily fixing the inner casing 400 when the inner casing 400 is lengthened. In the actual implementation, the second guide 500 can also adopt a similar structure to the first guide 300. For example, a plurality of second guides 510 are arranged at intervals in the circumferential direction.
[0041] In order to prevent the inner casing 400 from being deviated during the construction of the pile foundation, in the actual implementation, a fixed steel plate 600 can be used to weld the inner and outer casings into a whole. The fixed steel plate 600 is made of a 1 cm thick steel plate, and the size is 21*10 cm.
[0042] The specific implementation of the above-mentioned recyclable pile foundation steel casing structure:
[0043] First, the steel plate construction platform 100 is constructed, then the center line of the through hole is introduced by the cross method, then the distance between the outer edge of the outer casing 200 and the edge of the hole (i.e. the first guide 300) is calculated, then the first guide 300 is installed on the steel plate construction platform 100 to form the first guide 300, then the outer casing 200 is lifted by the 85t crawler crane + DZJ180 vibration hammer and is lowered along the first guide 300, and the first guide 300 and the outer casing 200 are welded and fixed, then the distance between the outer edge of the inner casing 400 and the edge of the hole (i.e. the second guide 500) is calculated in the same way, then the second guide 500 is installed on the steel plate construction platform 100 to form the second guide 500, then the inner casing 400 is lifted into the second guide 500 by the 85t crawler crane + DZJ180 vibration hammer and is lowered, and the second guide 500 and the inner casing 400 are welded and fixed, and finally the fixed steel plate 600 is welded and fixed between the outer casing 200 and the inner casing 400.
[0044] After the installation of the inner pile foundation steel casing structure is completed, the pile foundation excavation, installation of the steel reinforcement cage and pouring of concrete and the like can be carried out.
[0045] When the removal is carried out, the first guide 300, the second guide 500 and the fixed steel plate 600 are removed first, then the outer casing 200 is pulled out directly by the vibration hammer, this method can remove the outer casing 200 in its entirety, and then the outer casing 200 is transferred to the next destination for water circulation.
[0046] The above-mentioned recyclable pile foundation steel casing structure has the following advantages:
[0047] 1. Due to the adoption of the inner and outer casings 200, the inner diameter of the inner casing 400 can be reduced, thereby reducing the occupied space for installation of the steel reinforcement cage and pouring of concrete, and further reducing the amount of steel and concrete, so as to achieve the effect of reducing the cost.
[0048] 2. After use, the outer casing 200 can be removed in its entirety and recycled, thereby further achieving the purpose of saving materials.
[0049] The above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.
Claims
1. A recyclable pile casing steel structure, characterized in that, The utility model relates to a steel plate construction platform, which comprises: a steel plate construction platform having a through hole in the middle, the size of the through hole being larger than the outer diameter of the pile foundation; an outer casing, the outer diameter of the outer casing being larger than the outer diameter of the pile foundation but smaller than the diameter of the through hole; a first guide arranged on the steel plate construction platform, the first guide being provided with a first guide hole coaxial with the through hole, the diameter of the first guide hole being equal to the outer diameter of the outer casing; an inner casing, the inner casing being inserted into the outer casing, the inner diameter of the inner casing being larger than the outer diameter of the pile foundation; and a second guide detachably arranged on the steel plate construction platform, the second guide being provided with a second guide hole coaxial with the through hole, the diameter of the second guide hole being equal to the outer diameter of the inner casing.
2. A turnkey pile casing structure according to claim 1, characterised in that, The first guide comprises a plurality of first guide rods, the ends of the first guide rods extending into the through hole.
3. A turnkey pile casing structure according to claim 2, characterised in that, The first guide rod comprises an I-shaped steel bar and an arc-shaped steel plate, the I-shaped steel bar being welded and fixed on the steel plate construction platform, the arc-shaped steel plate being fixed on the end of the I-shaped steel bar extending into the through hole, and the middle of the arc-shaped steel plate being convex towards the center of the through hole.
4. A turnkey pile casing structure according to claim 3, characterised in that, The second guide has four second guides.
5. A turnkey pile casing structure according to claim 1, characterised in that, The second guide comprises a plurality of second guide rods, the ends of the second guide rods extending into the through hole.
6. A turnkey pile casing structure according to claim 1, characterised in that, The utility model further comprises a fixing steel plate welded between the inner casing and the outer casing.