Open caisson well protecting excavating foundation for transmission line iron towers in desert region and construction method thereof
A technology for transmission line iron towers and excavation of foundations, which is applied in infrastructure engineering, excavation, construction, etc., can solve the problems that it is difficult to make micro-foundations in desert areas, reduce manual workload and working procedures, and improve construction efficiency and quality Guaranteed effect
Pending Publication Date: 2019-05-31
ANHUI ELECTRIC POWER DESIGN INST CEEC
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Problems solved by technology
[0006] The purpose of the present invention is to solve the defect that it is difficult to make micro-foundations in desert areas in the prior art, and to provide a caisson retaining wall excavation foundation for transmission line towers in desert areas and its construction method to solve the above problems
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[0035] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:
[0036] Such as figure 1 As shown, a caisson retaining excavation foundation for transmission line towers in desert areas includes a sandy soil body 1, a bottom retaining cylinder 7, a middle retaining cylinder 6 and an upper retaining cylinder 5, all of which are divided into prefabricated sites according to the design depth of the foundation. The section is prepared in advance, and assembled by self-sinking through on-site excavation, and stands in the sandy soil body 1 . The bottom wall protection cylinder 7 includes a steel bar structure assembly 10 and a bottom concrete pouring body 11 , and the bottom concrete pouring body 11 is poured on the steel bar structure assembly 10 .
[0037] Such as figure 2 , image 3 and Figure ...
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The invention relates to an open caisson well protecting excavating foundation for transmission line iron towers in a desert region and a construction method thereof. Compared with the prior art, thedefect that a minitype foundation is hardly manufactured in the desert region is overcome. A bottom wall protecting barrel comprises a reinforcement structure assembly and a bottom concrete pouring body. The bottom concrete pouring body is poured on the reinforcement structure component. The reinforcement structure assembly comprises round reinforcement net rack hoops, reinforcements and steel pipes are vertically welded to the outer circumferences of the reinforcement net rack hoops, the reinforcements and the steel pipes which are equal in number are distributed on the reinforcement net rackhoops in a halved mode, and the reinforcements and the steel pipes of the bottom wall protecting barrel penetrate out of the top of the bottom concrete pouring body. The problems that in the desert region, field supporting conditions are poor, water resources are insufficient, and site conditions are severe are solved, and the excavating foundation in the desert region is obtained.
Description
technical field [0001] The invention relates to the technical field of construction of iron towers for power transmission lines in desert areas, in particular to an excavation foundation for caisson retaining walls of iron towers for power transmission lines in desert areas and a construction method thereof. Background technique [0002] The desert landforms in western my country are widely distributed. Under the background of power transmission from west to east, all transmission lines need to pass through desert areas. In aeolian desert areas, the base layer has the characteristics of deep distribution thickness, large fluidity, large porosity, no cohesion, and poor overall strength. The natural conditions are relatively harsh, wind erosion and sand burial are serious, construction materials for transmission line tower foundations are scarce, and engineering construction and transportation are difficult. Due to the poor self-stabilization characteristics of aeolian sand a...
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IPC IPC(8): E02D27/42E02D27/18E02D17/08
Inventor 周立国汪岩松张明瑞胡孔飞黄兴怀王良会许庆伟禹峰马克刚朱小丹杨锋张炜
Owner ANHUI ELECTRIC POWER DESIGN INST CEEC