阅读说明：本技术 地铁明挖车站盾构始发接收方法 (Shield starting and receiving method for subway open cut station ) 是由 齐明山 徐正良 王春凯 黄爱军 于 2020-04-29 设计创作，主要内容包括：本发明公开了地铁明挖车站盾构始发接收方法；盾构由地铁车站本体外侧进行吊装,不占用现状道路；在吊装过程中,根据地铁车站本体的车站风亭的设置,将盾构的吊装孔置于地铁车站本体侧方、道路红线以外；在施工吊装孔时,需要对车站风亭的结构局部加深至与地铁车站本体的端头井底板标高平齐；始发时,盾构通过盾构吊装孔下吊后,沿设计路径方向到达端头井,再进行平移转动90度；之后,进入正常始发程序；接收时,盾构与始发时的运输路径方向相反,并通过所述盾构吊装孔将所述盾构吊出。本发明的应用能够有效解决了施工中的一系列问题,且经济可行,在地铁工程中有广阔的应用前景。(The invention discloses a shield launching and receiving method for an open cut station of a subway; the shield is hoisted from the outer side of the subway station body, so that the shield does not occupy the current road; in the hoisting process, according to the arrangement of a station wind pavilion of the subway station body, hoisting holes of the shield are arranged on the side of the subway station body and outside a red line of a road; when a hoisting hole is constructed, the structure of the station wind box needs to be locally deepened to be flush with the elevation of the end well bottom plate of the subway station body; when starting, the shield is hung downwards through the shield hoisting hole, reaches the end well along the designed path direction, and then is translated and rotated by 90 degrees; then, entering a normal starting program; and during receiving, the direction of the transportation path of the shield during starting is opposite to that of the transportation path of the shield during starting, and the shield is hoisted out through the shield hoisting hole. The application of the invention can effectively solve a series of problems in construction, is economical and feasible, and has wide application prospect in subway engineering.)

1. A shield starting receiving method of an open cut station of a subway; the shield is hoisted from the outer side of the subway station body, so that the shield does not occupy the current road;

in the hoisting process, according to the arrangement of a station wind pavilion of the subway station body, the hoisting hole of the shield is arranged on the side of the subway station body and outside a red road;

when the hoisting hole is constructed, the structure of the station wind box needs to be locally deepened to be flush with the elevation of the end well bottom plate of the subway station body;

when starting, the shield is hung downwards through the shield hoisting hole, reaches the end well along the direction of the designed path, and then is translated and rotated by 90 degrees;

then, entering a normal starting program;

and during receiving, the direction of the transportation path of the shield during starting is opposite to that of the transportation path of the shield during starting, and the shield is hoisted out through the shield hoisting hole.

2. The shield launching and receiving method for the subway open cut station as claimed in claim 1, wherein both the segments and the dregs are hoisted and transported outside the subway station body without occupying the current road;

in the hoisting process, according to the arrangement of the entrance and the exit of the subway station body, the unearthed holes are arranged on the side of the subway station body and outside the red line of the road;

when the soil outlet hole is constructed, the access structure needs to be locally deepened to be flush with the elevation of the bottom plate of the subway station body;

when the soil is excavated, the flat trolley is transported to the position of the soil-excavating hole along the direction of the designed path, and the residue soil is lifted out through the soil-excavating hole;

the segments are lifted to the flat trolley through the soil outlet and then transported to the shield position along the designed path direction for assembly;

the design path meets the turning radius requirement of the flat-bed trolley.

3. The shield starting and receiving method for the subway open cut station as claimed in claim 2, wherein a temporary upright post is provided at a position where the subway station body collides with the designed path, and a station structural post is provided at the position of the collision after the shield construction is completed; and the corresponding temporary upright post is removed after the stress conversion is finished.

4. The shield launching and receiving method for the subway open cut station as claimed in claim 3, wherein the temporary columns are steel pipe columns or section steel columns.

Technical Field

The invention relates to the technical field of subway construction, in particular to a shield starting and receiving method for an open cut station of a subway.

Background

With the rapid development of urban rail transit, a large number of subway stations and regional tunnels are arranged below urban trunk roads, and more regional tunnels are constructed by adopting a shield method.

The traditional shield starting and receiving method comprises the following steps: after the subway station structure is completed, shield hoisting holes are reserved in the positions of a station top plate and a middle plate end well, soil holes are reserved in the middle of the station, starting and receiving of a shield tunneling machine are carried out through the hoisting holes, slag and duct piece hoisting in the shield tunneling process is carried out through the soil holes, and duct pieces and materials are stacked in the space above the completed station top plate.

The problems with this approach are: in the whole process of interval tunnel construction, hoisting holes, unearthing holes and material yards need to occupy the road surface all the time, and the interval tunnel construction period is long, thereby having great influence on road surface traffic and normal life of people.

In view of the above factors, how to provide the construction efficiency of the shield, and improve the application prospect of the shield in the subway engineering become technical problems to be solved urgently by technical personnel in the field.

Disclosure of Invention

In view of the defects in the prior art, the invention provides a shield launching and receiving method for an open cut station of a subway, which aims to effectively solve a series of problems in construction, is economical and feasible and has wide application prospect in subway engineering.

In order to achieve the purpose, the invention discloses a shield starting and receiving method for an open cut station of a subway; the shield is hoisted from the outer side of the subway station body, so that the shield does not occupy the current road;

in the hoisting process, according to the arrangement of a station wind pavilion of the subway station body, the hoisting hole of the shield is arranged on the side of the subway station body and outside a red road;

when the hoisting hole is constructed, the structure of the station wind box needs to be locally deepened to be flush with the elevation of the end well bottom plate of the subway station body;

when starting, the shield is hung downwards through the shield hoisting hole, reaches the end well along the direction of the designed path, and then is translated and rotated by 90 degrees;

then, entering a normal starting program;

and during receiving, the direction of the transportation path of the shield during starting is opposite to that of the transportation path of the shield during starting, and the shield is hoisted out through the shield hoisting hole.

Preferably, the duct pieces and the muck are hoisted and transported outside the subway station body, so that the existing road is not occupied;

in the hoisting process, according to the arrangement of the entrance and the exit of the subway station body, the unearthed holes are arranged on the side of the subway station body and outside the red line of the road;

when the soil outlet hole is constructed, the access structure needs to be locally deepened to be flush with the elevation of the bottom plate of the subway station body;

when the soil is excavated, the flat trolley is transported to the position of the soil-excavating hole along the direction of the designed path, and the residue soil is lifted out through the soil-excavating hole;

the segments are lifted to the flat trolley through the soil outlet and then transported to the shield position along the designed path direction for assembly;

the design path meets the turning radius requirement of the flat-bed trolley.

Preferably, a temporary upright post is arranged at the position where the subway station body conflicts with the designed path, and a station structural post is arranged at the conflict position after the shield construction is finished; and the corresponding temporary upright post is removed after the stress conversion is finished.

Preferably, the temporary upright column is in a steel pipe column or section steel column type.

The invention has the beneficial effects that:

the application of the invention can effectively solve a series of problems in construction, is economical and feasible, and has wide application prospect in subway engineering.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Drawings

Fig. 1 shows the arrangement of shield hoisting holes and shield transport paths in an embodiment of the present invention.

Fig. 2 shows an arrangement of the soil outlet holes, the segments and the muck transport path in an embodiment of the invention.

Fig. 3 is a schematic diagram illustrating the processing of the collision between the transportation path and the position of the structural column of the station according to an embodiment of the present invention.

Detailed Description