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Preparation method for preformed hole split pouring fender pile

A technology of retaining piles and reserved holes, which is applied to sheet pile walls, manufacturing tools, lubricating compositions, etc., can solve the problems of unsuitable deep base projects, high project cost, and complicated construction, and achieve convenient construction organization and smooth construction. The effect of short cycle time and convenient transportation

Inactive Publication Date: 2011-08-03
SHANGHAI ZHONGJI PILE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method is faster than the underground diaphragm wall and occupies less land, its engineering cost is relatively high compared with the surrounding protection piles, and the amount of steel used is large and the construction is complicated.
The deep-mixed cement-soil enclosure wall generally has no support in the pit, which is convenient for mechanized and rapid excavation, and has the dual functions of retaining soil and water-stopping, but its displacement is relatively large, especially when the length of the foundation pit is large, and the cement-soil mixing pile Pay attention to avoid affecting the surrounding environment during construction
Steel sheet piles are commonly used piles for underground enclosure structures. Although the bearing capacity is high, the pile diameter is small, so it is not suitable for deep base projects, and its construction cost is high, and the engineering quantity is large. No fencing pile is good

Method used

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  • Preparation method for preformed hole split pouring fender pile
  • Preparation method for preformed hole split pouring fender pile
  • Preparation method for preformed hole split pouring fender pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Preserve holes to splice the surrounding protection piles, such as Figure 1 ~ Figure 3 shown.

[0049] The above-mentioned enclosure pile is a solid pile, and its processing method is as follows:

[0050] a, prepare the steel cage skeleton;

[0051] b. Prepare high-performance concrete and prepare matching molds, and apply isolation lubricant on the molds;

[0052] c. Install the reinforcement cage on the mold and tighten the tension device;

[0053] d. According to the flexural performance of the product, pre-tension the steel bar, lock and anchor after meeting the requirements; do not stretch the steel bar if there is no pre-stress requirement;

[0054] e. Feed the prepared high-performance concrete into the steel mold, and start the vibration equipment at the same time to vibrate and compact;

[0055] f. Demoulding after steam curing;

[0056] g. The finished products shall be stacked according to the requirements of cement hardening, and shall be cured naturally...

Embodiment 2

[0063] Preserve holes to splice the surrounding protection piles, such as Figure 4 ~ Figure 6 shown.

[0064] Above-mentioned enclosure pile is hollow pile, and its processing method is:

[0065] a, prepare the steel cage skeleton;

[0066] b. Prepare high-performance concrete and matching molds, and apply isolation lubricant on the molds;

[0067] c. Install the reinforcement cage on the mold and tighten the tension device;

[0068] d. Feed the prepared high-performance concrete into the steel mold, pre-tension the steel bars according to the bending resistance of the product, and lock and anchor after reaching the required value;

[0069] E, put into centrifuge and carry out centrifugation and pour out the remaining pulp;

[0070] f. Demoulding after steam curing;

[0071] g. The finished products shall be stacked according to the requirements of cement hardening, and shall be cured naturally or with water according to the requirements of cement hardening.

[0072] Th...

Embodiment 3

[0078] Preserve holes to splice the surrounding protection piles, such as Figure 7 shown.

[0079] The above-mentioned enclosure pile is a solid pile, and its processing method is as follows:

[0080] a. Prepare high-performance concrete and matching molds, and apply isolation lubricant on the molds;

[0081] b. Feed the prepared high-performance concrete into the steel mold;

[0082] c, put it into the centrifuge and centrifuge and pour out the remaining pulp;

[0083] d. Demoulding after steam curing;

[0084] e. The finished products are stacked according to the requirements of cement hardening, and are naturally cured or water cured according to the requirements of cement hardening.

[0085] The dry weight components of the above-mentioned isolation lubricant are: sodium alginate 10, emulsifier Tween3, emulsifier Spam3, graphite 5 parts, filler talcum powder 80 parts by weight, add water 5 times by weight and mix and stir evenly;

[0086] The above-mentioned steam cu...

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Abstract

The invention provides a preformed hole split pouring fender pile, belongs to the field of building, in particular relate to a fender pile capable of barricading earth and water and applied to deep foundation pit engineering, and discloses a preparation method for the preformed hole split pouring fender pile. The cross section mode of the fender file is a square of which two semi-circles of opposite lateral surfaces are cut off. The fender pile is a preformed pile, has better compactness, permeability resistance, side pressure resistance and shearing resistance capacity, and does not need maintenance. The fender pile has simple construction, saves time and labor, and has short construction period and water retaining function; and the construction is completed by only driving a row of piles.

Description

technical field [0001] The invention relates to a spliced ​​and poured surrounding protection pile with reserved holes, in particular to a preparation method of a spliced ​​and poured surrounding protective pile with reserved holes, belonging to the field of construction. Background technique [0002] With the development of urban underground transportation and high-rise buildings, the construction of deep foundation pit projects is gradually increasing, and it is inevitable to encounter various diseases and accidents during construction, such as water leakage and sand foundry in the foundation pit enclosure structure. In recent years, the construction methods of enclosure structure engineering have made rapid progress, but there has been little improvement in the construction methods of improving the ground, implementing drainage, and stopping water. Some construction methods are difficult to master due to the use conditions, and the risk is very high. lead to disaster. Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28B21/66B28B21/68B28B21/92B28B1/08B28B7/22B28B7/38B28B11/24E02D5/20E02D7/00C10M169/04C10M107/36C10M141/02C10N40/36
Inventor 陈宇朱建舟
Owner SHANGHAI ZHONGJI PILE IND
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