Open caisson foundation soil taking platform

Abstract

The utility model discloses an open caisson foundation soil taking platform which comprises soil taking units, anchoring steel bars and anchor plates, the anchoring steel bars are embedded in the top of an open caisson partition wall, the anchor plates are evenly fixed to the open caisson partition wall through the anchoring steel bars, and the two soil taking units are symmetrically arranged on the two sides of an open caisson through the anchor plates. The soil sampling unit comprises distribution longitudinal beams, distribution cross beams, longitudinal pressure-bearing beams and bridge decks, the two distribution longitudinal beams are arranged on the adjacent open caisson partition walls in the length direction of the open caisson and fixed to the anchor plates, and the multiple distribution cross beams are arranged between the two distribution longitudinal beams in parallel at intervals; the longitudinal pressure-bearing beams extend in the length direction of the distribution longitudinal beams and are fixed to the distribution cross beams, and the bridge deck slabs are laid on the longitudinal pressure-bearing beams and used for containing movable soil sampling equipment. According to the utility model, only two groups of soil sampling units need to be arranged on the top surface of the open caisson wall, the soil sampling range can cover the whole open caisson plane, complicated water pipes, air pipes, mud discharge pipes, cables and the like are avoided, and the occupied construction space is reduced.

Description

Technical Field

[0001] The utility model relates to the field of building construction, and more specifically, to a soil-taking platform for a caisson foundation. Background Art

[0002] Caissons are widely used in underground pump rooms, jacking working wells, water intake structures, bridge foundations and other projects due to their strong stability, good integrity and high bearing capacity. The hydraulic sludge suction method is often used for sinking caissons without drainage. It is necessary to install a soil-taking platform on the entire caisson wall and partition wall. Many water pipes, air pipes, mud pipes and cables are arranged on the soil-taking platform, which often occupies a lot of construction space and even affects the construction efficiency. At the same time, it brings certain safety hazards. In addition, there are many restrictions when using the hydraulic sludge suction method, and the mud suction efficiency is not high in the clay layer. Therefore, there is an urgent need for a quick-construction caisson soil-taking platform to reduce the occupation of construction space and increase the sinking rate of the caisson. Utility Model Content

[0003] The purpose of the utility model is to provide a soil-taking platform for caisson foundation. Only two groups of soil-taking units need to be arranged on the top surface of the well wall. The soil-taking range can cover the entire caisson plane, and there are no complicated water pipes, air pipes, mud discharge pipes and cables, etc., which reduces the occupation of construction space.

[0004] The utility model solves the technical problem by adopting the following technical solution: providing a soil taking platform for a caisson foundation, comprising a soil taking unit, anchoring steel bars and an anchor plate, wherein the anchoring steel bars are pre-buried on the top of the caisson partition wall, the anchor plate is evenly fixed on the caisson partition wall through the anchoring steel bars, and two groups of soil taking units are symmetrically arranged on both sides of the caisson through the anchor plates;

[0005] The earth-excavating unit includes a distribution longitudinal beam, a distribution cross beam, a longitudinal pressure beam and a bridge deck. Two of the distribution longitudinal beams are respectively arranged on adjacent caisson partition walls along the length direction of the caisson and fixed to the anchor plate. Several of the distribution cross beams are arranged in parallel and spaced apart between the two distribution longitudinal beams. The longitudinal pressure beam extends along the length direction of the distribution longitudinal beam and is fixed on the distribution cross beam. The bridge deck is laid on the longitudinal pressure beam and is used to place movable earth-excavating equipment.

[0006] Preferably, the caisson foundation excavation platform has baffles vertically installed on both sides of the bridge deck.

[0007] Preferably, in the caisson foundation excavation platform, the distribution longitudinal beam and the distribution transverse beam are I-beams, and the longitudinal pressure-bearing beam is H-beam.

[0008] Preferably, in the caisson foundation excavation platform, the distribution longitudinal beam and the anchor plate, the distribution longitudinal beam and the distribution cross beam, the distribution cross beam and the longitudinal pressure beam, and the longitudinal pressure beam and the bridge deck are all fixed by welding.

[0009] Preferably, in the caisson foundation excavation platform, each group of excavation units is provided with two groups of longitudinal pressure-bearing beams, each group of longitudinal pressure-bearing beams has two longitudinal pressure-bearing beams, and each group of longitudinal pressure-bearing beams is paved with a bridge deck.

[0010] Preferably, the soil-excavating platform for the caisson foundation, the soil-excavating equipment is a telescopic arm excavator or a long arm excavator.

[0011] The utility model at least has the following beneficial effects:

[0012] 1. The utility model provides a soil-taking platform for caisson foundation, which only needs to set up two platforms on the top surface of the well wall, and soil is taken by soil-taking equipment such as telescopic arm excavators or long arm excavators, without complicated water pipes, air pipes, mud discharge pipes and cables, etc., thus reducing the occupation of construction space.

[0013] 2. The soil-excavation platform can be prefabricated in sections on the ground to facilitate production and installation.

[0014] 3. The earth-taking equipment moves on the earth-taking platform, and the earth-taking range can cover the entire caisson plane, improving construction efficiency and earth-taking quality.

[0015] 4. Soil is taken through earth-taking equipment such as telescopic arm excavators or long arm excavators, which improves the efficiency of earth-taking in clay layers.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view of a soil taking platform for a caisson foundation of the utility model;

[0018] Figure 2 This is a schematic diagram of the soil taking range of a soil taking device in a soil taking platform for a caisson foundation of the utility model;

[0019] Figure 3 It is a schematic elevation view of a soil-taking platform for a caisson foundation of the utility model;

[0020] Figure 4 This is a schematic diagram of an anchor plate in a soil taking platform for a caisson foundation of the utility model;

[0021] Explanation of the accompanying reference numerals: 1. caisson, 2. caisson compartment, 3. caisson partition wall, 4. earth-excavation unit, 5. earth-excavation equipment, 6. earth-excavation range, 7. distribution longitudinal beam, 8. distribution transverse beam, 9. longitudinal pressure-bearing beam, 10. bridge deck, 11. baffle, 12. anchor steel bar, 13. anchor plate. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0023] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0024] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0025] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0026] like Figure 1-4 As shown, a preferred embodiment of the utility model provides a caisson foundation soil excavation platform, including a soil excavation unit 4, anchoring steel bars 12 and anchor plates 13, wherein the anchoring steel bars 12 are pre-buried in the top of the caisson partition wall 3, and the anchor plates 13 are evenly fixed on the caisson partition wall 3 through the anchoring steel bars 12. In this embodiment, a preferred embodiment is that the anchor plates 13 can use 500×500×10mm steel plates, which are arranged at longitudinal intervals of 2m.

[0027] The two groups of soil taking units 4 are symmetrically arranged on both sides of the caisson 1 through the anchor plates 13, ensuring that the soil taking range 6 of the soil taking equipment 5 can cover the entire plane of the caisson 1, thereby improving construction efficiency and soil taking quality.

[0028] The soil-taking unit 4 includes a distribution longitudinal beam 7, a distribution cross beam 8, a longitudinal pressure beam 9 and a bridge deck 10. Two distribution longitudinal beams 7 are respectively arranged on adjacent caisson partition walls 3 along the length direction of the caisson 1 and fixed to the anchor plate 13. Several distribution cross beams 8 are arranged in parallel and spaced apart between the two distribution longitudinal beams 7. According to the spacing arrangement of the caisson compartment 2, the longitudinal pressure beam 9 extends along the length direction of the distribution longitudinal beam 7 and is fixed on the distribution cross beam 8. The bridge deck 10 is laid on the longitudinal pressure beam 9 and is used to place the movable soil-taking equipment 5. The soil-taking unit 4 can be prefabricated in sections on the ground for easy production and installation.

[0029] Furthermore, in the caisson foundation soil excavation platform, baffles 11 are vertically installed on both sides of the bridge deck 10 to protect the soil excavation equipment 5. In this embodiment, a preferred implementation scheme is that the bridge deck 10 is 10 mm thick, and the baffles 11 are 20 mm thick and 220 mm high.

[0030] Furthermore, in the caisson foundation soil taking platform, the distribution longitudinal beam and distribution cross beam are I-beams, and the longitudinal pressure beam is H-beam. In this embodiment, a preferred implementation scheme is that the distribution longitudinal beam 7 and the distribution cross beam 8 can use double-joined I-40a I-beams, and the longitudinal pressure beam 9 can use HM588×300 H-beams.

[0031] Furthermore, the caisson foundation excavation platform, the distribution longitudinal beam 7 and the anchor plate 13, the distribution longitudinal beam 7 and the distribution cross beam 8, the distribution cross beam 8 and the longitudinal pressure beam 9, and the longitudinal pressure beam 9 and the bridge deck 10 are all fixed by welding to ensure that the connection between the components is firm and reliable.

[0032] Furthermore, in the caisson foundation soil-taking platform, each soil-taking unit 4 is provided with two groups of longitudinal pressure-bearing beams 9, the spacing between the two groups of longitudinal pressure-bearing beams 9 is 2600 mm, the number of longitudinal pressure-bearing beams 9 in each group is two, the spacing between the longitudinal pressure-bearing beams 9 in each group is 700 mm, and a bridge deck 10 is laid on each group of longitudinal pressure-bearing beams 9. In this embodiment, a preferred implementation scheme is that each bridge deck 10 is used to place a crawler of the soil-taking equipment 5.

[0033] Furthermore, in the caisson foundation soil-taking platform, the soil-taking equipment 5 is a telescopic arm excavator or a long arm excavator. The telescopic arm excavator or the long arm excavator is used as the soil-taking equipment 5 to take soil, thereby improving the soil-taking efficiency in the clay layer.

[0034] The utility model also provides a construction method for a caisson foundation soil taking platform, comprising the following steps:

[0035] Step 1: First, make a caisson 1 on the ground. The caisson 1 can be made in sections;

[0036] Step 2: pre-embed anchor steel bars 12 on the top of the caisson partition wall 3 to fix the anchor plate 13;

[0037] Step three: Install the soil excavation unit 4. The soil excavation unit 4 consists of a distribution longitudinal beam 7, a distribution cross beam 8, a longitudinal pressure beam 9 and a bridge deck 10. A baffle 11 of a certain height is welded on both sides of the bridge deck 10. The distribution longitudinal beam 7 and the distribution cross beam 8 can use double-jointed 40a I-beams, and the longitudinal pressure beam 9 can use HM588×300 H-beams, 2 in a group, with a spacing of 700mm, and a spacing of 2600mm in each group. The bridge deck 10 is 10mm thick, the baffle 11 is 20mm thick and 220mm high, and the anchor plate 13 can use a 500×500×10mm steel plate with a longitudinal spacing of 2m.

[0038] Step 4: Set up soil taking unit 4 on the top surface of caisson partition wall 3, and set up two soil taking units 4 to ensure that soil taking range 6 can cover the entire caisson 1 plane when soil taking equipment 5 takes soil; a single soil taking unit 4 is made in two or three sections, and a truck crane can be used to hoist soil taking unit 4 to the corresponding position on the top of caisson partition wall 3, and the hoisting point is set at the position of distribution beam 8 at the bottom of longitudinal pressure beam 9. The distribution longitudinal beam 7 in soil taking unit 4 is connected to the bottom anchor plate 13 by welding or other means.

[0039] Step 5: After the soil-taking unit 4 is installed, the soil-taking equipment 5 is lifted onto the bridge deck 10 by a truck crane. To prevent the caisson 1 from tilting during excavation and sinking, a thick chain can be used to tie and fix the excavator crawler when the soil-taking equipment 5 is excavating and sinking.

[0040] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A caisson foundation soil excavation platform, characterized in that: It includes soil taking units, anchoring steel bars and anchor plates, wherein the anchoring steel bars are pre-buried on the top of the caisson partition wall, the anchor plates are evenly fixed on the caisson partition wall through the anchoring steel bars, and two groups of soil taking units are symmetrically arranged on both sides of the caisson through the anchor plates; The earth-excavating unit includes a distribution longitudinal beam, a distribution cross beam, a longitudinal pressure beam and a bridge deck. Two of the distribution longitudinal beams are respectively arranged on adjacent caisson partition walls along the length direction of the caisson and fixed to the anchor plate. Several of the distribution cross beams are arranged in parallel and spaced apart between the two distribution longitudinal beams. The longitudinal pressure beam extends along the length direction of the distribution longitudinal beam and is fixed on the distribution cross beam. The bridge deck is laid on the longitudinal pressure beam and is used to place movable earth-excavating equipment.

2. The caisson foundation soil taking platform according to claim 1, characterized in that: Baffles are vertically installed on both sides of the bridge deck.

3. The caisson foundation soil taking platform according to claim 1, characterized in that: The distribution longitudinal beam and the distribution cross beam are I-beams, and the longitudinal pressure-bearing beam is H-beam.

4. The caisson foundation soil excavation platform according to claim 1, characterized in that: The distribution longitudinal beam and the anchor plate, the distribution longitudinal beam and the distribution cross beam, the distribution cross beam and the longitudinal pressure beam, and the longitudinal pressure beam and the bridge deck are all fixed by welding.

5. The caisson foundation soil-taking platform according to claim 1, characterized in that: Each group of soil-excavating units is provided with two groups of longitudinal pressure-bearing beams, each group of longitudinal pressure-bearing beams has two longitudinal pressure-bearing beams, and each group of longitudinal pressure-bearing beams is provided with a bridge deck.

6. The caisson foundation soil-taking platform according to claim 1, characterized in that: The earth-excavating equipment is a telescopic arm excavator or a long arm excavator.

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