CN202176819U

CN202176819U - Pressure balance pipe jacking device head

Info

Publication number: CN202176819U
Application number: CN201120256586XU
Authority: CN
Inventors: 刘月升; 刘智; 李曲; 彭俊伟
Original assignee: Hunan Wangxin Construction Group Co Ltd
Current assignee: Hunan Wangxin Construction Group Co Ltd
Priority date: 2011-07-20
Filing date: 2011-07-20
Publication date: 2012-03-28
Anticipated expiration: 2021-07-20

Abstract

The utility model relates to a pressure balance pipe jacking device head, which belongs to the technical field of construction machinery and mainly and structurally composed of a front cabin and a rear cabin. The end portion of the front cabin head is a square soil cutting barrier (10) and a soil cutting grating plate (11). A soil cutting steel bar (13) is distributed at the position of a casing (12) at the end portion of the front cabin head. The front cabin and the rear cabin are provided with a front cabin sealing separation wall (14) and a rear cabin sealing separation wall (15). The front cabin sealing separation wall and the rear cabin sealing separation wall are provided with high-pressure air pipe holes (6), sealing doors, observation windows and luminance or telephone cable holes (16), and the bottoms of the front cabin sealing separation wall and the rear cabin sealing separation wall are communicated with dredge pipes (1). A front sealing door (8) is fixed with a water gun (7) through a ball hinge (18). By means of the pressure balance pipe jacking device head, pipe jacking machine operators can directly observe change of soil quality of the top surface so as to avoid blind operation, and further can conveniently solve the problem that when obstacles are encountered during jacking construction, the workers have difficulty in entering an evacuating face to remove the obstacles.

Description

A kind of air pressure balance pipe jacking equipment head

Technical field

The utility model relates to constructional engineering machinery, more particularly, relates to a kind of air pressure balance pipe jacking equipment head.

Background technique

Existing underground pipeline construction adopts the ashamed industry of groove mostly, excavates from the face of land; Worker's reprocessing difficulty before the big worker of earth moving amount. for overcoming groove operation drawback, implement construction by pipeline jacking method, no longer excavating earth surface both at home and abroad the sixth of the twelve Earthly Branches; Existing technology large diameter steel pipe partial pressure balance pipe jacking equipment is to adopt to go in ring to cut native grid, accomplishes with artificial but earthwork is still many in the pipe, in the operation; The conditions such as soil property that can not directly observe end face change; The often operation of blindness causes subsiding of underground installation damage and jacking face, and the repair amount of doing over again is big.Particularly head is when running into obstacle in jacking construction, and it is very big that the staff enters into the excavation surface thing difficulty that removes barriers.

The model utility content

The utility model problem to be solved provides a kind of air pressure balance pipe jacking equipment head, and the push-bench operator not only can directly observe the variation of the soil property situation of end face, has avoided blindly operation and jacking face to produce and has subsided.Can also solve easily when in jacking construction, running into obstacle, the staff enters into the remove barriers difficulty of thing of excavation surface.

The purpose of the utility model is achieved in that a kind of air pressure balance pipe jacking equipment head, is made up of with storehouse, back two-part Qian Cang; The end of preceding storehouse head is that square is cut native barrier, and square is cut native barrier center and is welded with and cuts native waffle slab; The shell place of head end, preceding storehouse evenly is furnished with by the shell circumference and cuts native reinforcing bar; Between Qian Cang and the storehouse, back preceding storehouse pressure bulkhead is housed, back storehouse is led to head and also is provided with storehouse, back pressure bulkhead outward; All establish high pressure air pore and illumination or telephone cable hole on the pressure bulkhead of forward and backward storehouse, the bottom leads to sludge drainage pipe; Described sludge drainage pipe one end connects the mud discharging mouth of bottom, preceding storehouse, and end leads to outside the head through scarfing cinder jar, Jet injector in addition; Lighting cable passes above-mentioned illumination or the telephone cable hole connects the lighting burner in the preceding storehouse; Sealed door and preceding storehouse viewing window before establishing on the pressure bulkhead of described preceding storehouse, wherein, preceding sealed door is with the fixing hydraulic giant of spherical hinge; Establish the back sealed door on the pressure bulkhead of storehouse, described back, storehouse, back viewing window is installed on the door.

Lay high-pressure air pipe in the above-mentioned high pressure air pore, the pressurized gas that high-pressure air pipe is carried can with the water and soil pressure balance in the head, make the excavation face relatively stable all the time.

Above-mentioned hydraulic giant with spherical hinge be fixed on seal up a door on, can three-dimensional rotation, the directed soil body of penetrating in the grid that dashes.

Above-mentioned back storehouse viewing window and preceding storehouse viewing window are the staff is used for observing head working state and the place ahead soil body and infiltration situation in jack-in process windows.

Above-mentioned sludge drainage pipe is evacuated to ground through Jet injector with preceding storehouse mud, and the clear water of mud after the precipitate and separate of ground through raw water service pump blowback Jet injector, recycles again.

Compared with prior art; The utility model is to set up sealed door together at former head Qian Cang and back between the storehouse, and when in jacking construction, running into obstacle, the staff can enter into the excavation surface thing that removes barriers; Because the balanced action of air pressure, jacking face can not produce and subside.To go in ring in addition and cut native grid and change the square native grid of cutting into, the thickening of head master tube steel plate is cut native waffle slab and is widened, encrypts; The head outer wall is assisted and is cut native reinforcing bar encryption, and agents enhance overall rigidity strengthens cutting and breaking capacity to the soil body, easy construction, and work efficiency improves.Changing a social system head simultaneously can carry out at the construction field (site), simple structure, and maintenance is easy, and cost is well below the push pipe head of other kinds.Sealed door and preceding storehouse viewing window before the utility model is established on the pressure bulkhead of preceding storehouse, the conditions such as soil property that the push-bench operator can directly observe end face through the preceding storehouse viewing window of sealing change, and have avoided operation blindly.

Description of drawings

The structural representation of Fig. 1 the utility model;

Fig. 2 is the B-B sectional structure schematic representation of Fig. 1;

Fig. 3 is the A-A sectional structure schematic representation of Fig. 1;

Fig. 4 is the C-C sectional structure schematic representation of Fig. 1.

Label is among the figure: 1 sludge drainage pipe; 2 Jet injectors; 3 scarfing cinder jars; 4 back sealed doors; 5 lighting burners; 6 high pressure air pores; 7 hydraulic giants; Sealed door before 8; 9 mud discharging mouths; 10 squares are cut native barrier; 11 cut native waffle slab; The shell of head end, 12 preceding storehouse; 13 cut native reinforcing bar; 14 preceding storehouse pressure bulkheads; Storehouse, 15 back pressure bulkhead; 16 illumination or telephone cable holes; 17 preceding storehouse viewing windows; 18 spherical hinges; Storehouse, 19 back viewing window.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:

A kind of air pressure balance pipe jacking equipment head of accompanying drawing 1 expression is made up of with storehouse, back two-part Qian Cang; The end of preceding storehouse head is that square is cut native barrier 10.Accompanying drawing 2 expression squares are cut native barrier center and are welded with and cut native waffle slab 11; Shell 12 places of head end, preceding storehouse evenly are furnished with by the shell circumference and cut native reinforcing bar 13; Accompanying drawing 3 has shown Qian Cang and afterwards between the storehouse preceding storehouse pressure bulkhead 14 has been housed; Storehouse, accompanying drawing 4 demonstration back is led to head and also is provided with storehouse, back pressure bulkhead 15 outward; All establish high pressure air pore 6 and illumination or telephone cable hole 16 on the pressure bulkhead of forward and backward storehouse, the bottom leads to sludge drainage pipe 1; Described sludge drainage pipe 1 one ends connect the mud discharging mouth 9 of bottom, preceding storehouse, and end leads to outside the head through scarfing cinder jar 3, Jet injector 2 in addition; Lighting cable passes the lighting burner 5 in above-mentioned illumination or the preceding storehouse of 16 connections, telephone cable hole; Sealed door 8 and preceding storehouse viewing window 17 before establishing on the described preceding storehouse pressure bulkhead 14, wherein, preceding sealed door 8 usefulness spherical hinges 18 fixing hydraulic giants 7; Establish back sealed door 4 on storehouse, the described back pressure bulkhead 15, storehouse, back viewing window 19 is installed on the door.Lay high-pressure air pipe in the above-mentioned high pressure air pore 6.

Claims

1. an air pressure balance pipe jacking equipment head is made up of with storehouse, back two-part Qian Cang; It is characterized in that: the end of preceding storehouse head is that square is cut native barrier (10), and square is cut native barrier center and is welded with and cuts native waffle slab (11); The shell (12) of head end, preceding storehouse is located, and evenly is furnished with by the shell circumference and cuts native reinforcing bar (13); Between Qian Cang and the storehouse, back preceding storehouse pressure bulkhead (14) is housed, back storehouse is led to head and also is provided with back storehouse pressure bulkhead (15) outward; All establish high pressure air pore (6) and illumination or telephone cable hole (16) on the pressure bulkhead of forward and backward storehouse, the bottom leads to sludge drainage pipe (1); Described sludge drainage pipe (1) one end connects the mud discharging mouth (9) of bottom, preceding storehouse, and end leads to outside the head through scarfing cinder jar (3), Jet injector (2) in addition; Lighting cable passes above-mentioned illumination or telephone cable hole (16) connect the lighting burner (5) in the preceding storehouse; Establish preceding sealed door (8) and preceding storehouse viewing window (17) on the described preceding storehouse pressure bulkhead (14), wherein, preceding sealed door (8) is with the fixing hydraulic giant (7) of spherical hinge (18); Establish back sealed door (4) on the described back storehouse pressure bulkhead (15), back storehouse viewing window (19) is installed on the door.

2. a kind of air pressure balance pipe jacking equipment head according to claim 1 is characterized in that: lay high-pressure air pipe in the described high pressure air pore (6).