Cross aisle ingate breaking-down construction and breaking-down method
A technology of horse head gate and horizontal passage, which is used in tunnels, earthwork drilling, mining equipment, etc., to achieve the effect of high construction efficiency and shortened construction period.
Inactive Publication Date: 2018-07-27
BEIJING MUNICIPAL CONSTR
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Problems solved by technology
At present, there is a lack of safe and efficient construction and removal methods for the horse head gate in the cross passage
Method used
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] In the embodiment of the present invention, a method for demolition of the Matou gate of the cross passage, the surrounding protection piles at the Matou gate of the horizontal passage and the unearthed tunnel are demolished by water drilling, and the grids at the demolished parts of the surrounding protection piles stand in a row. During the demolition process , The core soil position should be reserved for the upper steps, and it is strictly forbidden ...
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The invention discloses a cross aisle ingate breaking-down construction and breaking-down method. Fender posts of a cross aisle and an inagte of a soil-coming channel are broken down by water drilling, three grinds of the breaking-down position of the fender posts stand side by side, and in the process of breaking down, a core soil position is reserved on an upper step and is prohibited to break down; the braking down of the fender posts is carried out according to construction sequence of pilot tunnels, and the grinds are erected and enters the cross aisle to be subjected to excavation afterbreaking down; a cross aisle of a shield shaft is divided into a south side cross aisle and a north side soil-coming channel, firstly, the fender posts of a north soil-coming tunnel are broken down insequence, after the excavation of the soil-coming tunnel is completed by 15m, the fender posts of a southern shield starting transverse tunnel are broken down in sequence, and cross aisle construction is carried out; and the fender posts of the cross aisle and the inagte of the soil-coming channel are broken down by the water drilling, the three grinds of the breaking-down position of the fenderposts stand side by side, the braking-down process is safe and efficient, the construction efficiency is high, the construction period is shortened, and the safe and efficient operation of the cross aisle ingate breaking-down is ensured.
Description
technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a construction and method for removing horse head gates in a horizontal passage. Background technique [0002] Subway underground excavation stations are buried shallowly under urban roads, and shafts need to be excavated under the ground to create a working face to organize construction. However, the location of the road does not meet the conditions for excavating shafts, so shafts must be excavated on the side of the subway station according to the conditions of the project. , and then excavate a horizontal passage from the vertical shaft to the station, and open up the working face into the subway station from the horizontal passage. [0003] Among them, for the breaking operation of the protective piles at the Matoumen of the cross passage and the unearthed tunnel, after the construction of the shield shaft structure is completed, the structural construction suppo...
Claims
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IPC IPC(8): E21D9/00
CPCE21D9/00
Inventor 蔡志勇杨祥亮郭玉海张亮薛春苗李海峰王涛杨海健王牧月张晟源陈雪峰李星晨吕金彪张涛王英波苏世宗石文正王越张建珍李文新庞梦月姜宁宁李丹丹
Owner BEIJING MUNICIPAL CONSTR