CN205329688U

CN205329688U - Resistance -increasing slip casting stock

Info

Publication number: CN205329688U
Application number: CN201620021593.4U
Authority: CN
Inventors: 王国珍; 秦哲; 付厚利
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2016-01-12
Filing date: 2016-01-12
Publication date: 2016-06-22
Anticipated expiration: 2026-01-12

Abstract

The utility model discloses a resistance -increasing slip casting stock belongs to the anchor bolt support field. The utility model discloses a stock body, nut, backing plate, end thick liquid stopper and two kinds of steel hinge body systems. Two kinds of steel hinge body systems are connected by pull rod (4), and the pull rod afterbody is fixed by pull -rod nut (2). With the stock as for boring the intraocular, pulling pull rod (4), under the horizontal effort of pull rod, last connecting rod (10) of steel hinge are circled axle (12) with connecting rod (11) down and are rotated, directly hold up two upper and lower pterygoid lamina (13), the support system is expanded in formation. The steel hinge body system at stock top is under the pull rod effort, and two upper and lower connecting rods along slide removal makes two connecting rods expansions open. The pull rod is fixed the back by the pull -rod nut and is carried out slip casting through central slip casting passageway, and the barb that is equipped with on the pterygoid lamina (9) and connecting rod increase stock and rock mass and cement slurry 's area of contact, provide sufficient withdrawal resistance. The utility model is simple in operation, construction convenience, two kinds of steel hinge body systems have strengthened the condensation to the country rock.

Description

A kind of increasing hinders grouted anchor bar

Technical field

This utility model relates to Geotechnical Engineering supporting construction field, particularly relates to a kind of increasing and hinders grouted anchor bar。

Background technology

In the domain engineering processs of construction such as tunnel, water conservancy, mine working, anchor pole becomes most widely used support apparatus。Traditional grouted anchor bar makes prismatic shape, and withdrawal resistance provides mainly by anchoring body and Rock And Soil, and the damping force of anchor pole is inadequate, and this power is smaller under normal circumstances, it is impossible to meet requirement of engineering。Particularly in the area that geological conditions is poor, anchoring effect is undesirable。

Summary of the invention

For the deficiency that above technology exists, the purpose of this utility model provides a kind of simple, convenient increasing efficiently to hinder grouted anchor bar。

For achieving the above object, this utility model adopts the following technical scheme that and is achieved: a kind of increasing hinders grouted anchor bar, including anchor bar body, nut, backing plate, stop grouting plug and two kinds of steel hinge systems。Described anchor bar body includes central authorities' slip casting passage, and anchor bar body rear end is fastened on backing plate by clamp nut, and on anchor bar body, the position of close backing plate is also equipped with stop grouting plug, on anchor bar body and be provided with the injected hole that multiple and central slip casting passage communicates。Two kinds of steel hinge systems are connected by root pull bar, and by anchor pole as, in jewel hole, applying a horizontal force and pull pull bar, under the drive of pull bar, two connecting rods up and down of steel hinge rotate around the axis, and are directly held up by two upper and lower wing plates, form expandable stent system。Wing plate is provided with barb, can be directly protruding in the soil body, add anchor force。The steel hinge bodies at anchor pole top ties up under the active force of pull bar, and upper and lower two connecting rods move along slideway, makes two connecting rods open, and after concrete perfusion, increases the contact area of anchor pole and rock mass and cement grout, it is provided that sufficiently large withdrawal resistance。

The flexibility of described wing plate is consistent with the flexibility of anchor bar body, and the surface of anchor bar body is close to by wing plate。

Described wing plate is provided with barb, increases anchor rod damping power。

Described anchor pole top steel hinge system, under the active force of pull bar, upper and lower two connecting rods stretch along slideway。

Described pull bar is fixed by afterbody pull-rod nut。

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present utility model。

Fig. 2 is this utility model wing plate and connecting rod cooperation schematic diagram。

Fig. 3 is the steel hinge arrangement schematic diagram at this utility model top。

Fig. 4 is this utility model A-A generalized section。

In figure, the implication of each label is: 1-anchor bar body, 2-pull-rod nut, 3-nut, 4-pull bar, 5-backing plate, 6-stop grouting plug, 7-injected hole, 8-central authorities slip casting passage, 9-barb, the upper connecting rod of 10-, 11-lower link, 12-rotating shaft, 13-wing plate, the upper fixing axle of 14-, fix axle under 15-, 16-sliding way, 17-glide path。

Detailed description of the invention

Below in conjunction with drawings and Examples, particular content of the present utility model is described in more detail。

Embodiment 1:

It is illustrated in figure 1 the overall structure schematic diagram of utility model。The utility model discloses a kind of increasing and hinder grouted anchor bar, this utility model includes anchor bar body, nut, backing plate, stop grouting plug and two kinds of steel hinge systems。Described anchor bar body includes central authorities' slip casting passage 8, and is provided with the injected hole 7 that multiple and central slip casting passage communicates。Two kinds of steel hinge systems are connected by pull bar 4, and pull bar is fixed by afterbody pull-rod nut 2。By anchor pole as, in jewel hole, pulling pull bar 4, under pull bar horizontal applied force, the upper connecting rod 10 of steel hinge and lower link 11 12 rotate around the shaft, are directly held up by two upper and lower wing plates 13, form expandable stent system。The steel hinge bodies at anchor pole top ties up under the active force of pull bar, and upper and lower two connecting rods expand along slideway。Pull bar carries out slip casting by central authorities' slip casting passage after being fixed by pull-rod nut, and on wing plate, barb 9 and connecting rod increase the contact area of anchor pole and rock mass and cement grout, it is provided that enough withdrawal resistances。

Embodiment 2:

It is illustrated in figure 2 this utility model wing plate and connecting rod coordinates schematic diagram。Horizontal pull acts on pull bar 4, and upper and lower two connecting rods 12 rotate around the shaft, and connecting rod is directly connected with wing plate, is directly held up by two upper and lower wing plates 13, form expandable stent system。Wing plate is provided with barb, can directly go deep into, in the soil body, combining closely with country rock, add the contact area with country rock。

Embodiment 3:

It is illustrated in figure 3 the steel hinge arrangement schematic diagram at utility model top。Under the effect of pull bar horizontal pull, upper and lower two connecting rods expand along slideway, increase the contact area of anchor pole and rock mass and cement grout, increase its anti-pulling ability。In round pie outside fixing axle, it is prevented that connecting rod comes off。

Embodiment 4:

It is illustrated in figure 4 utility model A-A generalized section。Horizontal pull acts on pull bar 4, and upper and lower two connecting rods 12 rotate around the shaft, and connecting rod is directly connected with wing plate, is directly held up by two upper and lower wing plates 13。The flexibility of wing plate 13 is consistent with the flexibility of anchor bar body, and the surface of anchor bar body is close to by wing plate。Wing plate is provided with barb, can directly go deep into, in the soil body, combining closely with country rock, add the contact area with country rock, increase its anti-pulling ability。

Claims

1. one kind increases resistance grouted anchor bar, including anchor bar body, nut, backing plate, stop grouting plug and two kinds of steel hinge systems, it is characterized in that two kinds of steel hinge systems are connected by pull bar (4), horizontal force pulls pull bar (4), two connecting rods (12) around the shaft up and down making steel hinge rotate, directly two upper and lower wing plates (13) being held up, wing plate is provided with barb (9)。

2. a kind of increasing according to claim 1 hinders grouted anchor bar, it is characterised in that the flexibility of wing plate (13) is consistent with the flexibility of anchor bar body, and the surface of anchor bar body is close to by wing plate。

3. a kind of increasing according to claim 1 hinders grouted anchor bar, it is characterised in that two connecting rods up and down of top steel hinge system expand along sliding way (16) and glide path (17)。

4. a kind of increasing according to claim 1 hinders grouted anchor bar, it is characterised in that pull bar (4) is fixed by afterbody pull-rod nut (2)。