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Construction method of building pile foundation cushion cap in rock region

A construction method, technology of building piles, applied in the direction of construction, infrastructure engineering, etc.

Inactive Publication Date: 2019-04-16
SHANGHAI BAOYE GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a construction method for building pile caps in rocky areas. This method overcomes the defects of the traditional construction method of pile caps, ensures that the bottom of the caps and surrounding rock formations will not be damaged by vibration, and effectively improves The bearing capacity of the foundation reduces the construction cost

Method used

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  • Construction method of building pile foundation cushion cap in rock region

Examples

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Embodiment Construction

[0016] Example figure 1 Shown, the construction method of building pile cap in rock area of ​​the present invention comprises the steps:

[0017] Step 1. Excavate the foundation pit of building pile cap 1 to the elevation of cap 1 top;

[0018] Step 2: Measure the boundary dimension of cap 1 in the foundation pit and set out the line;

[0019] Step 3, using a water drill drilling machine to drill holes 2 in sequence along the boundary of the cap 1 in the rock layer;

[0020] Step 4. Use a cutting machine to break and remove the rocks in the boundary of cap 1;

[0021] Step 5. The bottom of the platform 1 is constructed with a pick and a cutting machine until the bottom is flat;

[0022] Step 6, use cement mortar to smooth the periphery of cap 1;

[0023] Step 7: Bind steel bars in the excavated cap 1 , pour concrete and perform maintenance to complete the construction of the building pile cap 1 .

[0024] Preferably, the cement mortar in the above step 6 is 1:2.5 cement m...

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Abstract

The invention discloses a construction method of a building pile foundation cushion cap in a rock region, which comprises the following steps of: excavating a foundation pit of the building pile foundation cushion cap to an elevation of a cushion cap top; measuring dimensions of cushion cap boundary in the foundation pit and paying off the cushion cap; drilling holes in a lithosphere along the cushion cap boundary in sequence by adopting a water drill puncher; adopting a cutting machine in the cushion cap boundary to break and remove rock blocks; adopting an air pick and the cutting machine toconstruct the bottom of the cushion cap until the bottom of the cushion cap is flat; plastering the periphery of the cushion cap by adopting cement mortar; and binding steel bars in an excavated cushion cap, and pouring concrete and curing to finish the construction of the building pile foundation cushion cap. By the adoption of the construction method of the building pile foundation cushion capin the rock region, the defect of a construction mode of a traditional building pile foundation cushion cap is overcame, rock layers at the bottom and the periphery of the cushion cap are not damagedby vibration, the bearing capacity of the foundation is effectively improved and the construction cost is reduced.

Description

technical field [0001] The invention relates to a construction method for building pile foundation caps in rocky areas. Background technique [0002] The construction of building pile caps is a key node for structural safety and stability, and it is usually forbidden to disturb the foundation during construction. For the rocky areas with both the overall rock layer and the boulder, the use of a breaker to break the rock layer will vibrate the rock layer, resulting in a decrease in the bearing capacity of the foundation; while using a large excavation method for the construction of the pile foundation cap, the foundation will be damaged. The amount of backfilling in the pit is large, and the cost of construction increases. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a construction method for building pile caps in rocky areas. This method overcomes the defects of the traditional construction method of pile cap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/14
CPCE02D27/14
Inventor 闫勇先王梦圆李万军
Owner SHANGHAI BAOYE GRP CORP
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