A device and construction method for shallow buried soft soil reinforcement comprehensive pipe trench
A technology that integrates pipe trenches and construction methods. It is applied in artificial islands, water conservancy projects, soil protection and other directions. It can solve problems such as hidden dangers of integrated pipe trenches that cannot be ignored, and achieve uneven settlement, reduce unit surface load, and improve stiffness. Effect
Active Publication Date: 2017-06-16
NORTHEASTERN UNIV LIAONING
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As the underground lifeline of the city, the construction of the comprehensive pipe trench has brought great vitality to the city's traffic and economy, but at the same time, the huge safety hazards brought by the comprehensive pipe trench cannot be ignored
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[0030] 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.
[0031] see Figure 1~3 , in an embodiment of the present invention, a shallow buried soft soil reinforcement integrated trench device includes a geogrid 2 arranged in the foundation pit, an integrated trench main body 8, a connecting steel plate 12 and a pre-embedded screw 15, and the geogrid 2 is set At the bottom and top of the foundation pit, the integrated pipe ditch main body 8 is arranged between the geogrids 2, and the pre-embedded screw 15 is longitudi...
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The invention discloses a shallow-buried soft soil reinforcement comprehensive pipe ditch device and a construction method. Firstly, the foundation pit is sloped and excavated, and drainage ditches are arranged outside the pit, and then a geogrid and a trapezoidal reciprocating layered layer are laid on the bottom of the pit from bottom to top. The gravel layer is backfilled with soil, the gravel sand layer is laid, the concrete cushion is poured, the main body of the integrated pipe trench, pre-embedded screws and water-stop steel plates are installed, and horizontal and vertical I-beams and steel pipe columns are installed inside the main body of the integrated pipe trench , Install cable-stayed angle steel and vertical steel plate on the outer surface of the main side wall of the comprehensive pipe ditch. The cable-stayed angle steel is fixed on the pre-embedded screw through the connecting steel plate and nut, and the second layer of soil is backfilled, and the geogrid and crushed Stone layer, and finally carry out the third layer of soil backfill. The construction method of the invention adopts the indirect reinforcement of the composite layered structure of the geogrid and the crushed stone layer and the direct reinforcement of installation and reinforcement components inside and outside the ditch, thereby greatly improving the stability of the construction process and operation period of the comprehensive pipe ditch.
Description
technical field [0001] The invention relates to the technical field of underground cavern excavation in geotechnical engineering, in particular to a shallow-buried soft soil reinforcement comprehensive pipe ditch device and a construction method. Background technique [0002] Urban comprehensive pipe ditch (corridor), also known as common ditch, is a municipal public tunnel space built underground in the city, and municipal public pipelines such as power, communication, and water supply are laid in one structure according to planning requirements, and unified planning and design are implemented. , construction and management. As the underground lifeline of the city, the construction of the comprehensive pipe trench has brought great vitality to the city's traffic and economy, but at the same time, the huge safety hazards brought by the comprehensive pipe trench cannot be ignored. Important urban pipelines such as heating pipelines, water supply and drainage pipelines, gas p...
Claims
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IPC IPC(8): E02D29/045E02D3/00
Inventor 王述红蔡智王鹏宇邢民黄立夫
Owner NORTHEASTERN UNIV LIAONING