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Grouting water stop method and device between fender posts

A technology of water stop device and enclosure pile, applied in excavation, construction, infrastructure engineering and other directions, can solve the problems of shortening grouting time, unable to effectively control the diffusion range of grouting liquid, etc. The effect of reducing usage and increasing utilization efficiency

Active Publication Date: 2019-05-21
北京住总集团有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it cannot effectively control the diffusion range of the grouting fluid during the grouting process, nor can it effectively shorten the grouting time

Method used

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  • Grouting water stop method and device between fender posts
  • Grouting water stop method and device between fender posts
  • Grouting water stop method and device between fender posts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 2 and Figure 4 Shown, the present invention provides a kind of grouting water-stopping method between enclosure piles, at least comprises the following steps:

[0037] S1: Use the drilling device to complete the excavation of several retaining piles 2 . Several surrounding protection piles are arranged with a set distance between them, wherein the set distance between the surrounding protection piles can be flexibly set according to the soil condition of the construction location. For example, when the soil quality at the construction site is silty sandy soil layer, a smaller set spacing can be selected to increase the supporting strength of the surrounding retaining piles to the soil layer. For example, the hole diameter of the enclosure pile can be set to 1000mm, the set spacing can be set to 1.5m, and it can be poured with C30 reinforced concrete. Preferably, the construction of the surrounding protection piles can be carried out by using a drilli...

Embodiment 2

[0051] This embodiment is a further improvement on Embodiment 1, and repeated content will not be repeated here.

[0052] Such as figure 1 As shown, the present invention also provides a grouting and water-stopping device between the surrounding protection piles. The water stop device at least includes a first grouting pipe 4b and a second grouting pipe 4a. At least two second grouting pipes 4a are arranged on the reinforcement cage 3 in a mirror-symmetric manner. For example, if figure 1 As shown, the first side 22 and the second side 23 of the surrounding protection pile are respectively provided with second grouting pipes 4a. exist figure 1 From the angle of view, the first side 22 refers to the left side of the enclosure pile, and the second side 23 refers to the right side of the enclosure pile. The line connecting the second grouting pipes 4 a on the first side and the second side intersects the central axis of the maintenance pile. The extending direction of the s...

Embodiment 3

[0057] This embodiment is a further improvement on Embodiment 1 and Embodiment 2, and repeated content will not be repeated here.

[0058] Preferably, the present invention also provides a grouting method, at least including the following steps:

[0059] S1: The first grouting pipes 4b on the adjacent sides of the surrounding protection pile 2 are arranged in a staggered manner, wherein the grouting area 1 is synchronously grouted according to the first surrounding pile 2a and the second surrounding pile 2b and both Grouting is carried out by retreating grouting.

[0060] Specifically, such as figure 1 As shown, four first grouting pipes 4b are arranged on the second side 23 of the first retaining pile 2a, which are named as the first-level first grouting pipes in sequence from bottom to top in order to facilitate distinction and understanding. , the first grouting pipe of the second stage, the first grouting pipe of the third stage and the first grouting pipe of the fourth ...

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Abstract

The invention relates to a grouting water stopping method and device between fender posts. A plurality of guard posts which are arranged in rows at intervals are used for surrounding a construction area; based on a grouting system at least provided with a first grouting pipe, grouting is conducted on a grouting area defined between the fender posts so that water stopping of the construction area can be completed; the grouting system is configured as follows: a second side of a first fender post and a first side of a second fender post are adjacent to each other; a plurality of first grouting pipes are arranged on the second side and the first side in the depth direction of the fender posts in a staggered mode, wherein a plurality of first grouting sub-areas and a plurality of second grouting sub-areas can be respectively formed on the second side and the first side on the basis of respective first grouting pipes, and the plurality of first grouting sub-areas and the plurality of secondgrouting sub-areas are arranged in a staggered manner along the depth direction of the fender posts.

Description

technical field [0001] The invention belongs to the technical field of construction, and in particular relates to a water-stop method and device for grouting between enclosure piles. Background technique [0002] Foundation pit enclosure is a method for developing and utilizing underground space and constructing various underground buildings such as multi-storey basements, underground railways, and underground commercial streets. Commonly used are gravity mixing pile retaining wall, underground diaphragm wall, pile column retaining wall, etc. Not only the stability of the foundation pit and the safety and convenience of the operation in the pit must be ensured, but also the displacement of the soil at the bottom of the pit and outside the pit must be controlled within a certain range to ensure the normal use of adjacent buildings and municipal facilities. Among them, the bored pile is used as an enclosure structure to withstand water and soil pressure, and is a commonly use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D19/16
Inventor 申庆梦邓彩霞鲁庆涛王青禹庆彬宋贺雨封小艳
Owner 北京住总集团有限责任公司