Flexible support system and construction method of prestressed anchor support plate for pile-slab wall
A prestressed, pile-sheet wall technology, applied in sheet pile wall, excavation, infrastructure engineering, etc., can solve the problems of easy breakage, compaction affecting construction efficiency, etc., and achieve the effect of simple construction process
Inactive Publication Date: 2017-02-22
LANZHOU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
The main disadvantages of this technology are: (1) Once damaged, obvious cracks will appear on the top of the slope, and the external environment (rainfall, freeze-thaw cycles, etc.) will accelerate the destruction of the supporting structure system
(2) The steel tie rods that transmit the pull-out force of the anchor plate are easily broken during the process of collapsible loess and large post-construction settlements in high fill projects
The inability to use large machinery for compaction affects the efficiency of construction
Method used
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[0027] The present invention is a new type of flexible support system of prestressed anchor supporting plate of pile plate wall and its construction method, as shown in the attached figure 1 , attached figure 2 As shown, the entire system is a reinforced concrete structure. The support system consists of seven parts: support pile 1, crown beam 2, soil retaining plate 3, waist beam 4, supporting plate 11, tie rod 6, and anchor head 24. It is a support system for filling engineering, especially suitable for Filling works in collapsible loess areas and high filling works with large post-construction settlements. In this system, the diameter of the support pile 1 is 0.8-1.2m, and the piles are formed by digging holes below the ground, and the pile ends are located in the reliable bearing layer. The crown beam 2 is connected to the top of each support pile 1; the reserved tie rod hole 5 is set at the 4 positions of the waist beam; the drain hole 27 is reserved in the middle of t...
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The invention discloses a flexible supporting system for a prestress anchor supporting plate for a sheet-pile retaining wall and a construction method. The supporting system comprises seven parts, namely supporting piles (1), a roof beam (2), breast boards (3), waist beams (4), supporting plates (11), pulling rods (6) and anchor heads (24). The roof beam (2) is connected with the tops of the supporting piles (1). The supporting piles (1), the roof beam (2), the breast boards (3) and the waist beams (4) are connected through matched bars, and are poured as a whole. The whole is connected with the supporting plates (11) through the pulling rods (6). Anti-corrosion treatment is carried out on the pulling rods (6), and the pulling rods (6) are coated with cement mortar. The soil pressure generated by filling materials (14) is sent to the supporting plates (11) through anchor heads (24). The structural stability can be guaranteed through the passive soil pressure of the supporting piles (1) inserted into the depth range and the anchoring force of the supporting plates (11).
Description
technical field [0001] The patent of the invention relates to a new flexible support system for filling engineering in the field of geotechnical engineering. Background technique [0002] The mountains and ravines in western my country are criss-crossed, and collapsible loess is widely distributed. In order to obtain development space, engineering projects such as pushing mountains and land and building airports have been carried out. In-situ support and anchorage. As a result, numerous collapsible loess filling projects and high fill slope support projects have been produced. [0003] The general support method for fill slope is the anchor plate, which relies on the lateral bearing capacity on the contact surface between the fill and the anchor plate to maintain the balance of the structure. The analysis method is the Kranz method. The main disadvantages of this technology are: (1) Once damaged, obvious cracks will appear on the top of the slope, and the external environm...
Claims
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IPC IPC(8): E02D5/02E02D17/20
Inventor 朱彦鹏朱胜祥叶帅华郑晓静周勇吴意谦李元勋惠趁意李京榜马孝瑞
Owner LANZHOU UNIVERSITY OF TECHNOLOGY