Counterweight punching-expanding replacement method

A replacement method and heavy hammer technology, applied in soil protection, construction, infrastructure engineering and other directions, can solve the problems of small proportion of hammer bottom area, large impact on surrounding environment, poor foundation bearing capacity, etc., to achieve small impact on surrounding environment, Wide range of applications and the effect of improving the bearing capacity of the foundation

Inactive Publication Date: 2007-01-10
宁夏建筑设计研究院有限公司
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AI Technical Summary

Problems solved by technology

The weight of the hammer used in this method is generally greater than 10T, and the area ratio of the bottom of the hammer is relatively small, so the depth of the rammed pit formed is relatively shallow, which makes the bearing capacity of the foundation poor, and the vibration and noise are large during construction, which also has a great impact on the surrounding environment.
In addition, this construction method has low efficiency, long construction period and high project cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] The specific implementation of the present invention is as follows: first select the tamping point on the foundation to be treated, use the lifting equipment to lift the cylindrical weight of 6-10T to a certain height, ram the pile point with the weight, and ram the pit Then fill the pit hole with broken bricks, coal gangue and other bulk materials, and tamp the bulk materials filled into the pit, so that the tamping filler forms a bulk material with a diameter of 1-1.5m and a depth of 5-7m. At the same time, the soil between the piles is compacted to form a composite foundation. Bulk materials include construction waste mainly broken bricks and tiles and industrial waste mainly gangue, slag and cinder.

[0007] This method not only has the characteristics of reinforcement, compaction, displacement and drainage of bulk materials, but also has the dynamic consolidation effect of hammer ramming reinforcement, which can greatly improve the bearing capacity of the foundatio...

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Abstract

The invention relates to construction groundsill reinforce processing method that using cylindrical weight dropper to from pit hole and filling dispersed material into the pit hole to form dispersing material stake, taking extrusion by using muddy soil, cohesive soil, silt, manmade earth filling and liquefied sandy soil and collapsed loess to the clearance of the stakes to form compound groundsill. The invention has the advantages of high ramming energy, and high effective process depth. It is easy to construct and low cost, and has great social and environment protecting benefits.

Description

technical field [0001] The invention relates to a building foundation reinforcement treatment method, which is suitable for foundation reinforcement treatment of various silt, cohesive soil, muddy soil, liquefied sandy soil and collapsible loess. Background technique [0002] For the foundation reinforcement treatment of soft cohesive soil and loose soil such as saturated sandy soil and silt soil with a tendency to liquefy, the existing foundation treatment method is mainly the method of ramming, expanding and compacting crushed stone piles. A kind of method of tamping and expanding and compacting crushed stone pile introduced by Chinese Patent Office on February 1, 1995 " Gravel Compaction Dynamic Compaction Method " (application number 93108850) is to arrange plum blossom shape or rectangular tamping point on the ground surface, use The heavy hammer rams the ground to form a ramming pit, fills the ramming pit with coarse-grained aggregate, and then rams it several times at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/08
Inventor 潘多俊牛文连王社选杨绍端韩自刚刘毓文王海川张秋林朱少兵
Owner 宁夏建筑设计研究院有限公司
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