A Soil Reinforcement Technology for Pipe-Jacking Well Opening on Soft Ground

A technology for soil reinforcement and soft soil foundation, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of long construction period, low excavation efficiency, high cost, etc., and achieve short construction period, low cost, and reduced ceiling The effect of entry resistance

Active Publication Date: 2022-06-28
广东一新长城建筑集团有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the defects of long construction period, high cost, and low excavation efficiency when the pipe jacking machine goes in and out of the hole, this application provides a soil reinforcement process for the hole of the pipe jacking well on soft soil foundation.

Method used

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  • A Soil Reinforcement Technology for Pipe-Jacking Well Opening on Soft Ground

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Embodiment Construction

[0033] Attached to the following figure 1 This application will be described in further detail.

[0034] The embodiment of the present application discloses a soil reinforcement process for a pipe jacking well hole for soft soil foundation. refer to figure 1 , a soil reinforcement process for a pipe jacking well opening for a soft soil foundation includes the following steps:

[0035] S1. When pouring concrete for the pipe jacking well 1 to construct the enclosure 4, reserve the designed hole 3 of the pipe jacking well and a gap for reinforcement of the soil body 2 around the hole of the pipe jacking well, and pre-embed steel bars along the side wall of the gap;

[0036] S2. Draw a coil out of the hole 3 of the pipe jacking well, and compact the soil 2 around the hole of the pipe jacking in the forward direction of the pipe jacking. The soil body within 3m, within 2-3m on the upper side and from the lower side to the bottom of the well, the soil body is compacted from the p...

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Abstract

This application relates to a soil reinforcement process for pipe jacking well openings on soft soil foundations, and relates to the technical field of pipe jacking construction. Two methods of tamping and compaction grouting are used to reinforce the soil around the opening of pipe jacking wells. The steps of tamping In the process, the soil around the hole of the pipe jacking well is tamped in the direction of the pipe jacking, and then the pit left after the tamping is filled with soil, and then the next round of tamping is carried out, and the cycle of filling and tamping is carried out until the condition of stopping the cycle . The application has the effect of improving the defects of long construction period, high cost and low excavation efficiency when the pipe jacking machine enters and exits the hole for soil reinforcement at the mouth of the pipe jacking well.

Description

technical field [0001] The present application relates to the technical field of pipe jacking construction, and in particular, to a soil reinforcement process for a pipe jacking well hole for soft soil foundations. Background technique [0002] At present, the operation of entering and exiting the hole in the pipe jacking construction is a very important task, and its safety and reliability should be fully considered during the construction, especially when the pipe jacking machine passes through the hole in the pipe jacking well. If the pipe jacking machine can be safely , Reliably and smoothly pass through the hole, then it can be said that the pipe jacking construction has been half successful. In the traditional construction method in which the pipe jacking machine passes through the opening of the pipe jacking well, three-axis stirring piles, high-pressure rotary jetting piles, freezing method and other external soil reinforcement techniques are generally used to ensure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/046E02D3/10E02D3/12E02D31/02
CPCE02D3/046E02D3/10E02D3/12E02D31/02
Inventor 田守伟王涛黎向平李思威吕桥
Owner 广东一新长城建筑集团有限公司
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