CN210948691U

CN210948691U - Collapsible loess tunnel construction strutting arrangement

Info

Publication number: CN210948691U
Application number: CN201922012169.XU
Authority: CN
Inventors: 王文利; 宋洋; 刘占杰; 罗强; 杨峰
Original assignee: First Engineering Co Ltd of CCCC Third Highway Engineering Co Ltd
Current assignee: First Engineering Co Ltd of CCCC Third Highway Engineering Co Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-07-07
Anticipated expiration: 2029-11-20

Abstract

The utility model discloses a collapsible loess tunnel construction supporting device in the technical field of tunnel construction, which comprises a tunnel groove and peripheral soil, wherein a first protective plate is tightly attached to the side wall of the tunnel groove, a second protective plate is fixedly inserted in the peripheral soil, the horizontal heights of the first protective plate and the second protective plate are the same, corresponding mounting holes are respectively arranged on the first protective plate and the second protective plate, a pile fixing structure is inserted in the corresponding mounting holes on the first protective plate and the second protective plate, the pile fixing structure comprises a fastening structure, the fastening structure is fixedly connected with a threaded rod, a sleeve is sleeved outside the threaded rod, the sleeve is connected with a drill bit structure, and by adding the first protective plate, the second protective plate, the pile fixing structure and other structures, the stability of the whole supporting device is improved, the construction safety is ensured, and by adding the threaded rod, the sleeve, the drill bit structure and other structures, the device can be rapidly installed, the project progress and efficiency are improved, and meanwhile the project quality is guaranteed.

Description

Collapsible loess tunnel construction strutting arrangement

Technical Field

The utility model relates to a tunnel construction technical field specifically is a collapsible loess tunnel construction strutting arrangement.

Background

The collapsible loess refers to soil which undergoes significant additional deformation due to structural damage of soil after being soaked under the action of self-weight stress of an overlying soil layer or under the combined action of the self-weight stress and additional stress, and belongs to special soil. Some miscellaneous fill also has a collapsible nature. Loess widely distributed in northeast, northwest, China and east China has a plurality of collapsibility. (the loess as used herein refers to loess and loess-like soil, collapsible loess is classified into self-weight collapsible loess and non-self-weight collapsible loess, and some old loess does not have collapsibility).

Collapsible loess is soil with special properties, uniform soil quality, loose structure and pore development. Generally, the strength is higher and the compressibility is lower when not wetted by water. When soaked by water under a certain pressure, the soil structure is quickly damaged, large additional subsidence is generated, and the strength is quickly reduced. Therefore, when the construction is carried out on the collapsible loess field, comprehensive measures mainly based on foundation treatment are adopted according to the importance of the building, the size of the possibility that the foundation is soaked by water and the strictness degree of the limitation on uneven settlement during the use, so as to prevent the damage of the collapsible foundation to the building.

The collapsible loess is subjected to significant additional subsidence under certain pressure when being subjected to water, and besides the softening effect of the cementing material at the contact point of the particles when meeting water, the collapsible loess is in an under-pressure dense state of the soil, under the drought climate condition, no matter the loess layer is windage or slope and flood, the evaporation influence depth is larger than the influence depth of atmospheric precipitation, in the forming process, sufficient pressure and proper humidity cannot be simultaneously provided, and the compaction of the soil layer is poor. The soil layer which is 2-3 meters close to the earth surface is influenced by atmospheric precipitation and generally has suitable compaction humidity, but the soil covering weight is very small at the moment, the soil layer cannot be compacted fully, and then the collapsible loess with low humidity and high porosity is formed.

Therefore, when the collapsible loess is constructed on the soil, it is necessary to improve the stability of the supporting device. Avoid landslide and earth to scatter, still need the installation of being convenient for on this basis, for this reason, propose a collapsible loess tunnel construction strutting arrangement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a collapsible loess tunnel construction strutting arrangement to solve and provide the problem among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a collapsible loess tunnel construction strutting arrangement, includes tunnel groove and peripheral soil, the lateral wall in tunnel groove is hugged closely and is had first backplate, peripheral soil internal fixation pegs graft and has the second backplate, the level of first backplate and second backplate is the same, corresponding mounting hole has all been seted up on first backplate and the second backplate, it has the pile fixing structure to peg graft in the mounting hole that corresponds on first backplate and the second backplate, the pile fixing structure is including fastening structure, fastening structure fixedly connected with threaded rod, the sleeve has been cup jointed in the threaded rod outside, the muffjoint has the drill bit structure.

Preferably, the fastening structure includes the carousel, carousel and threaded rod fixed connection, seted up on the carousel and accomodate the groove, the lateral wall of accomodating the groove articulates there is the bull stick, the carousel is close to a plurality of universal wheels of one side fixedly connected with of threaded rod.

Preferably, the drill bit structure includes a drill bit section of thick bamboo, a drill bit section of thick bamboo screw thread cup joints on the threaded rod, the lateral wall of a drill bit section of thick bamboo articulates there are the arc backup pad of two symmetries, the one end of the articulated trace of lateral wall of arc backup pad, the other end and the telescopic lateral wall of trace are articulated.

Preferably, the first guard plate and the second guard plate have the same specification, and the lower end of the first guard plate is abutted against the bottom wall of the tunnel slot.

Preferably, a plurality of universal wheels are annularly arranged on the side wall of the turntable, and the number of the universal wheels is not less than four.

Preferably, the number of the pile fixing structures on the first guard plate in each square meter is not less than four.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through adding first backplate, second backplate and pile fixing structure isotructure, improved whole strutting arrangement's stability, guarantee construction safety.

2. Through adding threaded rod, sleeve and drill bit structure isotructure, can carry out quick installation to the device, improve engineering progress and efficiency, also ensured engineering quality simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the installation structure of the present invention;

FIG. 2 is an enlarged schematic view of a part of the structure of the present invention;

FIG. 3 is a schematic view of the pile fixing structure of the present invention;

fig. 4 is a schematic view of the fastening structure of the present invention;

fig. 5 is a schematic view of the drill according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the device comprises a tunnel groove 1, a peripheral soil 2, a first guard plate 3, a second guard plate 4, a pile fixing structure 5, a fastening structure 51, a rotary table 511, a rotary table 512, a containing groove 513, a rotary rod 514, a universal wheel 52, a threaded rod 52, a sleeve 53, a drill bit structure 54, a drill bit barrel 541, an arc-shaped supporting plate 542 and a linkage rod 543.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a collapsible loess tunnel construction strutting arrangement, including tunnel groove 1 and peripheral soil 2, tunnel groove 1's lateral wall is hugged closely and is had first backplate 3, peripheral soil 2 internal fixation is pegged graft and is had second backplate 4, first backplate 3 is the same with the level of second backplate 4, corresponding mounting hole has all been seted up on first backplate 3 and the second backplate 4, it has pile fixing structure 5 to peg graft in the mounting hole that corresponds on first backplate 3 and the second backplate 4, pile fixing structure 5 includes fastening structure 51, fastening structure 51 fixedly connected with threaded rod 52, sleeve 53 has been cup jointed in the threaded rod 52 outside, sleeve 53 is connected with drill bit structure 54, this structure has improved whole strutting arrangement's stability, guarantee construction safety.

Fastening structure 51 includes carousel 511, carousel 511 and threaded rod 52 fixed connection, it accomodates groove 512 to have seted up on carousel 511, the lateral wall of accomodating groove 512 articulates there is the bull stick 513, a plurality of universal wheels 514 of one side fixedly connected with that carousel 511 is close to threaded rod 52, drill bit structure 54 includes a drill bit section of thick bamboo 541, a drill bit section of thick bamboo 541 screw thread cup joints on threaded rod 52, a drill bit section of thick bamboo 541's lateral wall articulates there is the arc backup pad 542 of two symmetries, the one end of the articulated trace 543 of lateral wall of arc backup pad 542, the other end of trace 543 is articulated with the lateral wall of sleeve 53, the structure can carry out quick installation to the device, improve engineering progress and efficiency, engineering quality has also.

Wherein, the specification of first backplate 3 and second backplate 4 is the same, and the lower extreme of first backplate 3 offsets with the diapire of tunnel groove 1, and a plurality of universal wheels 514 are cyclic annular and arrange on the lateral wall of carousel 511, and the number of universal wheels 514 is no less than four, and the average pile fixing structure 5 figure in per square meter on the first backplate 3 is no less than four.

One specific application of this embodiment is: the second guard plate 4 is inserted into the peripheral soil 2, the first guard plate 3 is placed corresponding to the second guard plate 4 and is tightly attached to the side wall of the tunnel slot 1, in the process, the distance between the first guard plate 3 and the second guard plate 4 is ensured to be suitable for the length of the pile fixing structure 5, the pile fixing structure 5 is nailed into corresponding mounting holes on the first guard plate 3 and the second guard plate 4 until the universal wheel 514 is close to the side wall of the first guard plate 3, the rotating rod 513 is rotated out, the rotating disk 511 is rotated by the rotating rod 513, the rotating disk 511 can drive the threaded rod 52 to rotate, as the threaded rod 52 is in threaded connection with the drill bit barrel 541, the drill bit barrel 541 can be pulled to be close to the sleeve 53 when the threaded rod 52 rotates, so that the arc-shaped support plate 542 is gradually unfolded under the support of the linkage rod 543 until the arc-shaped support plate is completely straightened, at the moment, the pile fixing structure 5 can firmly fix the first guard plate 3 and the second guard plate 4, and ensure, the construction safety is guaranteed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a collapsible loess tunnel construction strutting arrangement, includes tunnel groove (1) and peripheral soil (2), its characterized in that: the side wall of tunnel groove (1) is hugged closely and is had first backplate (3), peripheral soil (2) internal fixation is pegged graft and is had second backplate (4), the level of first backplate (3) and second backplate (4) is the same, corresponding mounting hole has all been seted up on first backplate (3) and second backplate (4), it has pile fixing structure (5) to peg graft in the mounting hole that corresponds on first backplate (3) and second backplate (4), pile fixing structure (5) are including fastening structure (51), fastening structure (51) fixedly connected with threaded rod (52), sleeve (53) have been cup jointed in the threaded rod (52) outside, sleeve (53) are connected with drill bit structure (54).

2. The collapsible loess tunnel construction supporting device as set forth in claim 1, wherein: fastening structure (51) are including carousel (511), carousel (511) and threaded rod (52) fixed connection, seted up on carousel (511) and accomodate groove (512), the lateral wall of accomodating groove (512) articulates there is bull stick (513), carousel (511) are close to a plurality of universal wheels (514) of one side fixedly connected with of threaded rod (52).

3. The collapsible loess tunnel construction supporting device as set forth in claim 1, wherein: drill bit structure (54) include a drill bit section of thick bamboo (541), a drill bit section of thick bamboo (541) screw sleeve connects on threaded rod (52), the lateral wall of a drill bit section of thick bamboo (541) articulates has arc backup pad (542) of two symmetries, the one end of the articulated trace (543) of lateral wall of arc backup pad (542), the other end of trace (543) is articulated with the lateral wall of sleeve (53).

4. The collapsible loess tunnel construction supporting device as set forth in claim 1, wherein: the first protection plate (3) and the second protection plate (4) are identical in specification, and the lower end of the first protection plate (3) is abutted to the bottom wall of the tunnel slot (1).

5. The collapsible loess tunnel construction supporting device as set forth in claim 2, wherein: the universal wheels (514) are annularly arranged on the side wall of the rotary table (511), and the number of the universal wheels (514) is not less than four.

6. The collapsible loess tunnel construction supporting device as set forth in claim 1, wherein: the number of the pile fixing structures (5) on the first guard plate (3) in each square meter is not less than four.