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Construction method of bearing platform and basement floor in deep soft soil area

A basement floor and construction method technology, applied in the direction of excavation, artificial island, sheet pile wall, etc., can solve the problems of increased cost, inability to pull out, slow construction speed, etc.

Inactive Publication Date: 2019-02-12
CHINA MCC20 GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the conventional practice, the cap and the basement floor are poured at the same time. In the case of using steel sheet piles for support, if the steel sheet piles are poured at the same time, the steel sheet piles will not be pulled out, and the side of the cap will be difficult to waterproof, which will inevitably increase the cost. , the construction speed is slow

Method used

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  • Construction method of bearing platform and basement floor in deep soft soil area
  • Construction method of bearing platform and basement floor in deep soft soil area
  • Construction method of bearing platform and basement floor in deep soft soil area

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Embodiment Construction

[0021] Example Figure 1 to Figure 4 As shown, the construction method of the cap platform and the basement floor in the deep soft soil region of the present invention comprises the following steps:

[0022] Step 1. Within the scope of the divided construction section, measure and set out the line according to the construction drawing of the cap, determine the position of the sideline of the cap 1, and construct the steel sheet pile 2 at a certain distance outside the sideline of the cap 1;

[0023] Step 2, according to the depth of the foundation pit, set the waist beam 3 along the steel sheet pile 2 through calculation, set the corner braces 4 at the corners of the waist beam 3, and set the opposite brace 5 between the waist beams 3 in the length direction;

[0024] Step 3: Excavate the earthwork of the cap 1 to the elevation of the bottom of the cap 1, and pour the cap cushion 11 at the bottom of the cap 1;

[0025] Step 4: Remove the corner brace 4, the opposite brace 5 a...

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Abstract

The invention discloses a construction method of a bearing platform and a basement floor in a deep soft soil area. The method comprises the steps: excavating the bearing platform by a steel sheet pilesupporting mode; according to the depth of the bearing platform, setting waist beams, angle braces and opposite braces on steel sheet piles through calculation; after excavation is completed, pouringa cushion layer, constructing waterproofing and a waterproofing protection layer, binding a bearing platform reinforcement, and then erecting templates around the bearing platform reinforcement; pouring bearing platform concrete to the bottom level of the basement floor, and constructing waterproofing and a waterproofing protection layer for the side face of the bearing platform; after earth is backfilled and compacted, pulling out the steel sheet piles; and after the bearing platform construction of the designated construction section is completed, pouring a cushion layer for the basement floor, constructing waterproofing and a waterproofing protection layer for the floor, binding a floor reinforcement, pouring floor concrete, and thus completing basement floor construction. The method can be simple, efficient and safe to complete the excavation and support of the bearing platform and the construction of the basement floor in the soft soil area, ensures the safety of construction operation, facilitates the recovery and utilization of the steel sheet piles after being pulled out, and saves cost.

Description

technical field [0001] The invention relates to a construction method for a bearing platform and a basement floor in a deep soft soil area. Background technique [0002] The cap refers to the reinforced concrete platform connected to the top of each pile set on the top of the pile foundation in order to bear and distribute the load transmitted by the pier body. In areas with deep soft soil, especially those with deep silt layers, in order to ensure the safety of foundation pits, foundation pit support is often required for the excavation of the foundation pit. The method of steel sheet pile support can not only ensure the construction speed, but also ensure Safety in the pit. However, according to the conventional practice, the cap and the basement floor are poured at the same time. In the case of using steel sheet piles for support, if the steel sheet piles are poured at the same time, the steel sheet piles will not be pulled out, and the side of the cap will be difficult ...

Claims

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Application Information

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IPC IPC(8): E02D27/14E02D29/045E02D5/04E02D17/04E02D31/02
CPCE02D5/04E02D17/04E02D27/14E02D29/045E02D31/02
Inventor 张健李义轩郑学刚王前朱世超
Owner CHINA MCC20 GRP CORP
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