Same-hole layered simultaneous-grouting cement soil condensate generating device

A technology for generating devices and solidified products, which is applied in the fields of earthwork drilling, soil protection, infrastructure engineering, etc., can solve the problems of high repeated drilling rate, uneven grouting, and difficulty in grouting effect to meet the expected design, and achieve Effects that are easy to implement, ingeniously designed, and simple in structure

CN112065319APending Publication Date: 2020-12-11中电建路桥集团有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-12-11

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Abstract

The invention provides a same-hole layered simultaneous-grouting cement soil condensate generating device, and relates to the technical field of underground engineering grouting reinforcement. Grout can be limited in any section for grouting, the purpose of segmented grouting can be achieved, and the device is simple in structure, ingenious in design and easy to implement. The device comprises anelastic grouting outer pipe, a rigid core pipe arranged in the grouting outer pipe in a sleeved mode and a sharp bottom arranged at the bottom of the grouting outer pipe, wherein a plurality of long-strip-shaped openings are formed in the pipe wall of the core pipe, and a plurality of stoppers used for adjusting the grout outlet position are arranged outside each opening; grouting holes are formedin the pipe wall of the grouting outer pipe; each opening corresponds to the corresponding grouting holes; and a one-way expansion ring is arranged outside each grouting hole. In the grouting process, the grouting holes which do not need to be grouted are in sealed connection with the corresponding stoppers, and the positions of the stoppers are changed to seal the grouting holes in different positions to adjust the grouting positions. According to the technical scheme, the device is suitable for the underground grouting reinforcement process.
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Description

Technical field

[0001] The invention relates to the technical field of grouting reinforcement for underground engineering, in particular to a device for generating soil solidified products with the same hole and layered with cement.

Background technique

[0002] In the grouting reinforcement project of underground engineering, loose and weak or water-rich strata are often encountered. When grouting reinforcement of such dungeons, the biggest problem faced is the serious collapse of boreholes and low porosity. The previous grouting methods include forward and backward grouting processes. The forward grouting process is to control the drilling depth from the shallow ground to the deep section for grouting reinforcement until the design grouting depth is reached. The disadvantage is that the repeated drilling rate is high, and the drilling is easy to be repeatedly grouted. Backward grouting mainly includes TSS pipe grouting technology, and it is difficult to realize separa...

Examples

Embodiment Construction

[0024] In order to better understand the technical solutions of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] It should be understood that the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0027] Aiming at the deficiencies of the prior a...