CN1070246A

CN1070246A - The various tunnel shapes and sections shield type driving system

Info

Publication number: CN1070246A
Application number: CN 92108790
Authority: CN
Inventors: 邢念信
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-30
Filing date: 1992-07-30
Publication date: 1993-03-24

Abstract

This invention belongs to underground excavation such as tunnel and underground railway machinery and construction technology field in the soil.Structure of the present invention is by front guide, steel bow member, postnotum, and hydraulic pressure jacking system and the prefabricated pad of excavator etc. assembles.Each member of shield construction system all is the burst assembling, and shape and size are multiple.Can be assembled into various holes shape and different section size, front guide has the three kinds of patterns (guard plate type, honeycomb fashion, pointed cone formula) that are applicable to different soil conditions, thereby applicable various holes shape and different soil properties (cohesive soil, sand, mud and cobble etc.) condition.

Description

The various tunnel shapes and sections shield type driving system

A kind ofly be used to dig up mine and the machinery and the process system of underground driving

Underground railway and mine excavation road heading machinery system have mainly adopted pipe grid formula protection driving and shield type protection driving at present, and it is stronger that the protection of pipe grid formula can only be used for underground soil property independence, and this job practices complexity, construction costs height long in time limit.The shield type structure construction is more advanced, but present shield type structural system only is applicable to the Fixed Sections shape, and because underground soil structure constantly changes, it is inconvenient so promptly to construct with regard to the structure that needs different shield structures, and the cost height.

The objective of the invention is to design a kind of shield construction system different from the past, it can a machine be applicable to that the different soil properties of different holes shape tunnel, and can the reduction of erection time reduce construction costs.

Structural principle of the present invention is such, shield excavation machine is that multistage steel prefabricated component energy is arranged, be assembled into the steel bow member (2) of various cross sectional shapes, the front guide (1) of split blade type is housed at the front end of steel bow member, the postnotum (4) that burst connects is housed at the rear portion, in steel supplies the frame energy, hydraulic jack (3) is housed also, the pad (5) of prefabricated guiding turning usefulness is arranged in the postnotum back.In order to be suitable for different geological conditionss, front guide is made three kinds of forms, be guard plate type, can only the soil property of self-reliance be arranged along the section periphery developing face of being applicable to of arranging, honeycombed sheet type it except that having the guiding along the section periphery, (3) are from laterally also having the multiple tracks guide plate in the section, form cellularly, be applicable to the soil property of excavation face self-defense capability, the pointed cone formula is applicable to the periphery of boulder bed portion, except that select also can to adjust front guide length the front guide form according to different soil properties according to different soil conditions.Postnotum mainly plays protective action, hydraulic jack is the power section that feeds of this mechanism, adjusting backing plate (5) when tunneling need be turned the gulf gets final product, on the steel bow member, also has bolster (6), the pin machine is cut in digging can be installed in the top, be the shield type driving system of main body like this by the steel bow member, just can have exploited the tunnel of various holes tunnel shape and different soil properties, 7 is the excavation face.

Advantage of the present invention:

1, be not subjected to the restriction of excavation section face shape and size, various section configurations and size all can be used in the underground construction;

2, be not subjected to the restriction of soil condition, clay, sand, boulder bed, mud and alternating layers all can be used.

3, shield driving and support construction process are connected as a single entity, and can guarantee construction safety, compare with construction technologies such as managing grid, can simplify working procedure again greatly, quicken construction speed, save pork barrel significantly;

4, member is simple, and is easy to process, but all processing and manufacturings of the machining factory of of certain scale and technical level;

5, there are not heavy big member, transportation, assembling, demolition.Change all very square change of member just;

6, easy to operate, grasp easily, the general technology workman can manipulate through training;

7, compare with spray Wan support construction process, can purify construction environment greatly;

8, owing to little, and there is the shield structure to protect the top, supports in time the soil layer disturbance.Thereby the roof fall accident that can not cave in, even buried depth is very shallow, surface settlement is also very little, can guarantee above ground structure safety surely.

Fig. 1 is a various tunnel shapes and sections shield type driving system flat cutting face schematic diagram.

Fig. 2 is the drawing in side sectional elevation of the development machine of particular hole shape.

The embodiment of the invention is for as shown in Figure 1, 2, steel bow member (2) assembles structure by multistage steel prefabricated component, front end edge periphery at the steel bow member is equipped with multi-disc sharp cone distal front guide (1), along periphery multi-disc postnotum (4) is housed at steel bow member rear portion, the backing plate (5) that hydraulic jack (3) is used to change the gulf is housed in steel bow member and the postnotum is contained in after the steel bow member postnotum, stull (6) can be gone up the dress exploitation and be cut pin machinery.

Claims

1, a kind of multiple hole multistage face shield type driving system, it is by front guide (1), postnotum (4), hydraulic jack formations such as (3), and it is characterized in that: multi-segment structure steel prefabricated component is assembled into steel bow member (2); Front guide (1) postnotum (4) is installed on the steel bow member for burst; Behind postnotum, be useful on the backing plate (5) of guiding; Also have the driving of installation to cut pin machine stull (6) on the steel bow member.

2, various tunnel shapes and sections shield type as claimed in claim 1 becomes driving system, it is characterized in that: front guide (1) has the guard plate type that plate is only arranged along section face periphery, has except that having along section face periphery and also has the honeycomb fashion of guide plate in length and breadth the guide plate; It is the pointed cone formula guide plate of sharp cone distal that front end is arranged, and various shapes and physical dimension are all by selecting for use according to the shape of driving section face and soil condition.

3, various tunnel shapes and sections shield type as claimed in claim 1 system, it is characterized in that: turn to driving for making the shield construction system at curved section, backing plate (5) can work or different size and size.