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Connecting structure for use in piled anchor supporting system and its construction method

A technology for connecting structures and implementing methods, applied in infrastructure engineering, excavation, sheet pile walls, etc., can solve problems such as poor safety, many processes, and long construction periods, and achieve the effects of short construction periods, good integrity, and fewer procedures.

Inactive Publication Date: 2007-05-30
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a connection structure for pile-anchor support system to solve the shortcomings of poor safety, high cost, many processes, and long construction period in the connection of pile-anchor support structures, so as to improve the pile-anchor support structure. To protect the overall safety of the system, reduce the cost, simplify the construction process and shorten the construction period

Method used

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  • Connecting structure for use in piled anchor supporting system and its construction method
  • Connecting structure for use in piled anchor supporting system and its construction method
  • Connecting structure for use in piled anchor supporting system and its construction method

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Embodiment

[0037] For deep foundation pit projects with poor geological conditions, pile-anchor support systems are usually used. As shown in Figures 8, 9, and 10, the depth of the foundation pit in this example is 12.4m, and the wall protection piles used are 15m long, 0.8m in pile diameter, and 1.6m in pile spacing, and two rows of anchor cables are arranged at positions of 5.0m and 7.5m respectively , the inclination angle of the anchor cable is 25°.

[0038] As shown in Figures 1 to 7, the construction of the retaining pile 1 is carried out according to the design drawings, and then the foundation pit is excavated from the ground 10 to 5.0m for the construction of the first row of anchor cables 8; Pull a pass line to accurately determine the elevation of the first row of anchor cables 8 boreholes 2 positions; in Figure 7, the concrete pad wedge size a=125mm, b=208mmmm, the position and reserved length of the reinforcement can be calculated according to the sizes of a and b. Among th...

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Abstract

The invention relates to a connecting structure for pile-anchor supporting system and the implementation method, belonging to base foundation engineering technology. The invention contains three parts that the first part comprises drilling hole, anchorage bars and cement mortar, in which steel bar inserts into the drilling hole on the retaining pile and cement mortar is jetted to anchor the steel bar; the second part comprises concrete and pre-buried steel plate, after support framework the wedge is formed by jetted concrete, steel bar and steel plate; the third part comprises connecting steel plate and stiffener. When it is implemented in detail the first step is locating steel bar, chiseling hole, planting reinforcing bar, jetting cement mortar to anchor; the second step is welding the pre-buried steel plate and anchorage bar, forming wedge by cast-in-place concrete; the final step is welding the connecting steel bar and stiffener on the pre-buried steel plate. The invention is provided with safe and reliable supporting system, low cost, short engineering period. Because steel middle beam is canceled, a mass of steel material is saved so as to decrease engineering cost is greatly, simplify construction procedure and shorten the construction period.

Description

technical field [0001] The invention belongs to the technical field of foundation engineering, and relates to a deep foundation pit project constructed with a pile-anchor support system, in particular to a connection structure used in the pile-anchor support system and an implementation method thereof. Background technique [0002] At present, in deep foundation pit projects constructed with pile-anchor support systems, the connection between wall retaining piles and anchor cables generally uses waist beams made of I-beam or channel steel, and the anchor cables are anchored on the waist beams. , through certain structural measures to connect with wall protection piles, to ensure the overall coordinated stress of the entire pile-anchor support system. Therefore, the waist beam plays an important role in the whole support system as the force transmission structure of the anchor cable (rod) preload. Waist beams are generally welded by section steel. However, the construction a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/74E02D17/20
Inventor 贾金青姜睿郑卫锋
Owner DALIAN UNIV OF TECH
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