CN216741525U

CN216741525U - Rich sand bed drainage construction is with simple and easy shield structure device

Info

Publication number: CN216741525U
Application number: CN202123313367.3U
Authority: CN
Inventors: 吴凯; 陈晓丹; 李明; 孟凡胜; 刘占国; 孙艳刚; 韩飞; 姜延柱; 安曙浩; 李菁
Original assignee: Changchun Urban Construction And Maintenance Group Co ltd
Current assignee: Changchun Urban Construction And Maintenance Group Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-14
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a simple shield device for drainage construction of a sand-rich layer, which belongs to the technical field of engineering construction and comprises a vertical grid arranged at the inner end part of a steel sleeve, wherein a top ring adjacent to the vertical grid is also arranged in the steel sleeve, the top ring is connected with the inner wall of the steel sleeve through guide top assemblies uniformly arranged on the periphery of the vertical grid, and the top ring can be matched with the end part of a slurry pipe. The utility model discloses a simple shield device for drainage construction of a sand-rich layer, which can ensure that the construction of sand-layer jacking pipes can be safely finished without a formal large-tonnage shield machine, improve the construction efficiency and reduce the cost.

Description

Rich sand bed drainage construction is with simple and easy shield structure device

Technical Field

The utility model discloses a simple shield device for drainage construction of a sand-rich layer, and belongs to the technical field of engineering construction.

Background

Along with the development of social economy and the improvement of the living standard of people, municipal pipelines under urban roads are increasingly complex. And most municipal pipelines can not be constructed synchronously with roads, so that a plurality of projects are seriously lagged due to the influence of factors such as sign and tear, geological environment, construction capital and the like, and the problem of how to macroscopically control and manage the municipal pipelines is always a problem which puzzles design units and owners. And various underground pipes such as: the requirements of petroleum pipelines, natural gas pipelines, rainwater pipelines and sewage pipelines are increasing day by day, and some existing buildings become necessary places for the pipelines, and in particular, when sand layer geology is crossed, in order to ensure the safety of overground structures, common construction units need to adopt a pipe-jacking shield machine or adopt a manual excavation jacking mode for construction. Both of these two construction methods have insurmountable disadvantages: the pipe jacking shield machine has high construction cost, can not treat obstacles (the shield machine can be stopped due to the stone blocks with the diameter larger than 150 mm) jacked in front, and is not suitable for construction under the geological condition that foreign fillers such as boulders, construction wastes and the like exist below the roadbed of the existing road (newly built); the manual excavation is relatively simple, the cost is lower, but the manual excavation is not suitable for the soil quality of a sand layer, and the roadbed sinks to influence the quality of the existing road or a newly-built road due to the fact that the sand layer is poor in verticality and easy to collapse in the jacking process under serious conditions.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects described in the background technology and provides a simple shield device for drainage construction of a sand-rich layer.

The utility model aims to solve the problems and is realized by the following technical scheme:

the utility model provides a rich sand bed drainage construction is with simple and easy shield structure device, is including setting up the vertical grid in the tip in the steel sleeve, still be provided with the top circle adjacent with vertical grid in the steel sleeve, the top circle is through evenly setting up the top assembly of direction all around at vertical grid and steel sleeve inner wall connection, the top circle can cooperate with the tip of mud pipe.

Preferably, the number of the guide top assemblies is 4-8, the 4-8 guide top assemblies are respectively and uniformly fixed on the inner wall of the steel sleeve, and the execution ends of the 4-8 guide top assemblies are respectively connected with the inner side of the top ring.

Preferably, the top ring includes: the top rings are respectively connected with the execution ends of the 4-8 guide top assemblies, and the extension sleeves of the top rings are provided with sand scraping rings for cleaning the inner wall of the steel sleeve.

Preferably, the cross section of the vertical grid is in a shape like a Chinese character 'mi' or a #.

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

the utility model discloses a simple shield device for drainage construction of a sand-rich layer, which can ensure that the safe construction of a sand-layer pipe jacking can be finished without a formal large-tonnage shield machine, during the construction of the sand-rich layer, the end part of the steel sleeve is provided with a relay pipe, the concrete pipe is arranged in the steel sleeve, the end part of the concrete pipe is matched with the top ring and is arranged on the guide rail, the relay pipe and the steel sleeve are jacked into sand through the matching of the main jack and the other end of the concrete pipe, the sand flows into the concrete pipe along the vertical grating according to the natural landslide gradient, the sand flowing into the concrete pipe is manually cleaned, the top edge of the edge is cleaned in the jacking process, so that the resistance of the whole jacking pipe is reduced, meanwhile, the height and the direction of the steel sleeve and the relay intermediate pipe can be adjusted through the guide top assembly, and the construction is completed without removing noise and environmental pollution, so that the construction efficiency is improved, and the cost is reduced.

Drawings

Fig. 1 is an isometric view of a simple shield device for drainage construction of a sand-rich layer according to the utility model.

FIG. 2 is a front view of a simple shield device for drainage construction of a sand-rich layer according to the present invention.

FIG. 3 is a schematic diagram of the simple shield device for drainage construction of a sand-rich layer.

The device comprises a steel sleeve 1, a vertical grating 2, a guide top assembly 3, a top ring 4, a mud pipe 5, a guide rail 6 and a total jack 7.

Detailed Description

The utility model is further illustrated below with reference to the accompanying figures 1-3:

the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, a first embodiment of the present invention provides a simple shield device for drainage construction of a sand-rich layer based on the prior art, comprising: the steel sleeve 1, the vertical grid 2, the guide roof assembly 3 and the roof ring 4, and the above-mentioned assembly structure and the connection relationship therebetween will be described in detail.

In order to better control the sand collapse, the vertical grating 2 is fixed at the inner end part of the steel sleeve 1 through welding, the vertical grating 2 can adopt a # -shaped grating or a Mi-shaped grating, and the # -shaped grating is adopted in the embodiment, so that the collapsed sand layer can not flow under the grating under the static condition. The guide top assembly 3 comprises 4-8 guide top assemblies, 4 guide top assemblies are arranged in the embodiment, the 4 guide top assemblies 3 are uniformly arranged on the periphery of the vertical grating 2 and fixed on the inner wall of the steel sleeve 1 through bolts, the guide top assembly 3 can adopt a 50t top pickaxe, and the execution ends of the 4 guide top assemblies are respectively connected with the inner sides of the top rings through bolts.

The steel sleeve 1, the vertical grating 2 and the top ring 4 are made of impact-resistant and wear-resistant composite steel plates as base plates, the base plates are made of low-carbon steel or low alloy, the superiority of bimetal is reflected, the wear-resistant layer resists the wear of a wear medium, and the base plates bear the load of the medium, so that the high-impact-resistant and wear-resistant composite steel plate has high impact resistance and wear resistance.

The specific working process is as follows:

when the steel sleeve is used, as shown in fig. 3, a relay pipe is installed at the end part of the steel sleeve 1 in a launching pit, a concrete pipe is installed in the steel sleeve 1, the end part of the steel sleeve is matched with a top ring 4 and is placed on a guide rail 6, the steel sleeve 1 is firstly jacked into sand on the guide rail through matching of a general jack 7 and the other end of the concrete pipe, the sand flows into the concrete pipe 5 along a vertical grid 2 according to a natural collapse gradient, only the sand flowing into the concrete pipe needs to be cleaned manually, the top side of the steel sleeve is cleaned during jacking, so that the resistance of the whole jacking pipe is reduced, when the jacking elevation or the jacking direction is in a problem, four guide jacking assemblies 3 are started to adjust the height and the direction, the concrete pipe 5 is continuously placed to be in butt joint with the previous concrete pipe 5 through a crane, and construction is finished until the steel sleeve 1 completely comes out of a receiving pit. Therefore, the use of large-scale mechanical equipment is saved, a low-cost steel plate is adopted, the purpose of expectation is achieved by the small jack, manpower and material resources are saved, and the construction task can be completed quickly and effectively.

While embodiments of the utility model have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the utility model not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.

Claims

1. The utility model provides a rich sand layer drainage construction is with simple and easy shield structure device which characterized in that, is including setting up vertical grid (2) of tip in steel sleeve (1), still be provided with in steel sleeve (1) and carry ring (4) adjacent with vertical grid (2), carry ring (4) through evenly setting up in vertical grid (2) direction top assembly (3) all around with steel sleeve (1) inner wall connection, carry ring (4) can cooperate with the tip of mud pipe (5).

2. The simple shield device for the drainage construction of the sand-rich layer according to claim 1, wherein the number of the guide roof assemblies (3) is 4-8, 4-8 guide roof assemblies (3) are respectively and uniformly fixed on the inner wall of the steel sleeve (1), and the execution ends of 4-8 guide roof assemblies are respectively connected with the inner side of the top ring (4).

3. The simple shield device for drainage construction of sand-rich layers according to claim 1 or 2, wherein the cross section of the vertical grid (2) is in a shape like a Chinese character 'mi' or a #.