CN106351663A - Retrograde brush expansion process for cut construction - Google Patents

Abstract

The present invention provides a kind of cutting hole construction retreat type brush expansion technology, relates to the technical field of cutting hole construction, 1) do the preparation work before the hole cutting guide tunnel; It is necessary to set up canopy supports in the roadway; 3) After the construction of the cut-out guide tunnel is completed, the small section formed by the cut-out guide tunnel is enlarged to the design section; 4) The tail of the belt conveyor is fixed on the cut-out opening; 5 ) The fully-mechanized excavator performs a retreat brushing expansion, the buffer bed of the belt conveyor moves backwards with the fully-mechanized excavator brushing, and the H frame of the belt conveyor is removed and shrinks backwards with the retreating movement of the fully-mechanized excavator; 6) At the same time as the retreating brush expansion, the canopy supports and wooden piles were continued to be installed on the outer sides of the original canopy supports on both sides, and the roof was reinforced. The fully mechanized excavator brushed to the starting position. The technological process of the invention is reasonably designed, and the lane is formed at one time, which avoids rework and greatly improves the construction efficiency of eye cutting.

Description

Retrograde Brush Expanding Technology in Cutting Eye Construction

technical field

The invention relates to the field of eye-cutting construction, in particular to a retreat-type brushing technique for eye-cutting construction.

Background technique

The design section of the working face cutout is large, the pressure is concentrated, the support strength is high, there are many wooden stacks in the canopy, and the labor intensity is high. The traditional construction method is to complete the construction of the pilot tunnel, and the comprehensive excavator will be removed for expansion. During the period, the belt conveyor and the canopy must be removed Etc., there are many reworks and the construction period is long, and the construction efficiency is low.

For this, need to make improvement.

Contents of the invention

The invention provides a receding brush-expansion process for eye-cutting construction that can greatly improve the construction efficiency of eye-cutting.

A kind of eye-cutting construction retreat type brush expansion process is carried out according to the following steps:

1) After the eye-cutting guide tunnel is ready, install the belt conveyor, belt conveyor buffer bed, secondary transport loading device and fully mechanized excavator in sequence, and make preparations before the eye-cutting guide tunnel;

2) The fully mechanized excavator moves forward to cut the hole, and according to the section width and geological conditions, a canopy support is set in the roadway, the buffer bed of the belt conveyor moves forward with the fully mechanized excavator, and the H frame of the belt conveyor follows the Replenish forward with the advance of the comprehensive excavator;

3) After the construction of the cut-out guide tunnel is completed, the small section formed by the cut-out guide tunnel is enlarged to the design section;

4) Fix the tail of the belt conveyor on the cutout, remove the secondary loading device, turn the head of the comprehensive excavator on the spot, and start the brushing and expansion construction. After a certain distance, install the secondary loading device;

5) The fully-mechanized excavator performs backward brush expansion, the buffer bed of the belt conveyor moves backward with the fully-mechanized excavator brushing, and the H frame of the belt conveyor is removed and shrinks backwards with the backward movement of the fully-mechanized excavator;

6) While the fully-mechanized excavator is retreating and brushing, continue to install the canopy supports and wooden stacks on the outer sides of the original two-sided canopy supports respectively, and reinforce the roof. End, the support installation is over, and the lane formation is over.

Further, in step 5), in the process of back-type brushing and expansion of the fully mechanized excavator, it is necessary to set up canopies and wooden piles to strengthen the support of the roof according to the situation of the roof.

Further, in step 5), a certain included angle should be set between the fully mechanized excavator and the second-run transfer device according to the size of the brush expansion.

Further, in the step 6), the canopy support and the wood stack are installed along with the movement of the buffer bed of the belt conveyor.

Further, the canopy support is to first fix the I-beam with iron wires on the wire mesh of the roof of the roadway, and then use the single pillar to inject emulsion to support and elongate to withstand the I-beam.

The advantage of the present invention is that: the present invention adopts the retreat type brush expansion process, that is, after the construction of the eye-cut guide tunnel is completed, the fully-mechanized excavator is directly turned over in situ, the tail of the belt conveyor is fixed on the eye-cut opening, and the buffer bed is brushed with the fully-mechanized excavator. The expansion moves forward to perform brush expansion. At the same time as the brush expansion, install the canopy support and wooden stacks respectively, and reinforce the roof. The comprehensive excavator brushes to the starting position. The retreat-type brush expansion can form a lane at one time, which effectively solves the problems of construction period, safety and rework waste in the construction of eye-cut brush expansion, and greatly improves work efficiency.

Description of drawings

Fig. 1 is a schematic diagram of a retreating brush expansion in an embodiment of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In conjunction with accompanying drawing 1, a kind of eye-cutting construction retreat type brushing technique of the present invention is carried out according to the following steps:

1) After the eye-cutting guide tunnel is ready, install the belt conveyor 1, the belt conveyor buffer bed 2, the secondary transport loading device 3 and the fully mechanized excavator 4 in sequence, and make preparations before the eye-cutting guide tunnel;

2) The fully mechanized excavator 4 moves forward to cut the hole, and according to the width of the section and geological conditions, set up the canopy support 5 in the roadway, the belt conveyor buffer bed 2 moves forward with the mechanized excavator 4, and the belt conveyor The H frame of 1 is supplemented forward along with the advancement of fully mechanized excavator 1;

3) After the construction of the cut-out guide tunnel is completed, the small section formed by the cut-out guide tunnel is enlarged to the design section;

4) Fix the tail of the belt conveyor 1 on the cutout 6, remove the secondary loading device 3, turn the head of the fully mechanized excavator 4 on the spot, and start the brushing and expansion construction. After a certain distance, install the secondary loading device 3 installed;

5) The fully-mechanized excavator 4 carries out the retreat type brushing expansion, the belt conveyor buffer bed 2 moves backward with the fully-mechanized excavator 4 brushing, and the H frame of the belt conveyor 1 shrinks backward along with the retreating movement of the fully-mechanized excavator 4;

6) While the fully mechanized excavator 4 is retreating and brushing, continue to install the canopy support 5 and wooden piles (not shown in the figure) on the outside of the original two sides of the canopy support 5, and reinforce the roof (Fig. Not shown in ), fully mechanized excavator 4 brushes and expands to starting position, and brushes and expands and finishes, and supporting installation finishes, and the lane-forming finishes.

Further, in step 5), in the process of retreating brush expansion of the fully mechanized excavator, a canopy and wooden stacks should be set according to the situation of the roof to strengthen the support of the roof and improve safety;

Further, in step 5), a certain included angle should be set between the fully mechanized excavator 4 and the second-rotation conveying device 3 according to the size of the brush expansion.

Further, in said step 6), the canopy support 5 and the wooden pile are installed along with the movement of the buffer bed 2 of the belt conveyor.

Further, the canopy support 5 is to first fix the I-beam with iron wires on the wire mesh of the roof of the roadway, and then use the single pillar to inject the emulsion to bear the force and elongate to withstand the I-beam.

The advantage of the present invention is that: the present invention adopts the retreat type brush expansion process, that is, after the construction of the eye-cut guide tunnel is completed, the fully-mechanized excavator is directly turned over in situ, the tail of the belt conveyor is fixed on the eye-cut opening, and the buffer bed is brushed with the fully-mechanized excavator. The expansion moves forward to perform brushing, and at the same time of brushing, install the canopy support and wooden stacks respectively, and at the same time reinforce the roof. , The retreat type brush expansion once forms a lane, which effectively solves the problems of construction period, safety and rework waste in the construction of eye cutting brush expansion, and greatly improves the work efficiency.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be described in the foregoing embodiments Modifications are made to the recorded technical solutions, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (5)

1. a kind of incisor canal retrusive brush expands technique it is characterised in that carrying out as follows:

1) cut eye to lead after cave satisfies the requirements, install that belt conveyer, belt feeder be buffer bed successively, two fortune loading attachments and comprehensive pick Machine, carries out and cuts the preparation before eye leads cave；

2) fully-mechanized digging machine moves forward to carry out cutting eye and leads cave, and according to section width and geological conditions, in tunnel, setting marguise props up Shield, belt feeder buffer bed with fully-mechanized digging machine forward movement, and the h frame of belt conveyer is with supplementing before fully-mechanized digging machine and then forward；

3) cut eye lead cave construction terminate after, by cut eye lead cave formation light section be expanded into design section；

4) tail of belt conveyer is fixed on and cuts eye mouth, remove two fortune loading attachments, by the head spot turn of fully-mechanized digging machine, Start brush and expand construction, after a segment distance, then two fortune loading attachments are installed；

5) fully-mechanized digging machine carries out retrusive brush expansion, and buffer bed expansion with fully-mechanized digging machine brush is moved rearwards by belt feeder, and the h frame of belt feeder is with comprehensive The retrusive movement of pick machine is removed to after-contraction；

6) while fully-mechanized digging machine retrusive brush expands, continue to be respectively mounted outside the marguise supporting of original both sides marguise supporting and Grillage, reinforces to top board, and fully-mechanized digging machine brush expands to homeposition, and brush expansion terminates, and supporting is installed and terminated, and becomes lane to terminate.

2. incisor canal retrusive brush according to claim 1 expands technique it is characterised in that in step 5) in after fully-mechanized digging machine During moving back the expansion of formula brush, strengthening supporting to be carried out to top board according to the situation setting marguise of top board and grillage.

3. incisor canal retrusive brush according to claim 1 expands technique it is characterised in that in step 5) in fully-mechanized digging machine and To be arranged at a certain angle between two fortune rehandling facilities according to the size that brush expands.

4. incisor canal retrusive brush according to claim 1 expands technique it is characterised in that in described step 6) in marguise Supporting and grillage are installed with the buffer bed movement of belt feeder.

5. incisor canal retrusive brush according to claim 1 expands technique it is characterised in that described marguise supporting is first will I-steel iron wire is fixed on the wire gauze of back, then withstands work using individual prop injection emulsion load elongation Word steel.