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Deep hole sleeve valve pipe grouting device and application method thereof

A sleeve valve pipe grouting and sleeve valve pipe technology, which is applied in the field of geotechnical engineering, can solve the problems of damage to the stopper, cannot be lowered to the bottom, low strength, etc. The effect of connection strength

Inactive Publication Date: 2020-08-11
HEBEI CONSTR & INVESTIGATION RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some deficiencies in the grouting process of the sleeve valve pipe, such as the low strength between the joints of the sleeve valve pipe, and the bending phenomenon often occurs during the lowering process, resulting in the stopper not being able to be lowered smoothly, or even lowered to the end In addition, the pressure of the conventional grout stopper is about 1 MPa. When the grouting pressure is higher, the grout stopper may be damaged and leak grout along the pipe wall of the sleeve valve pipe, affecting the grouting effect

Method used

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  • Deep hole sleeve valve pipe grouting device and application method thereof
  • Deep hole sleeve valve pipe grouting device and application method thereof
  • Deep hole sleeve valve pipe grouting device and application method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Such as Figure 1-Figure 7 As shown: this embodiment provides a deep hole sleeve valve tube grouting device, including a grouting device 16, a pressurized sealing mechanism and a number of sleeve valve tubes 18, which are fixedly connected by sleeves 9 in sequence , the connected sleeve valve pipes 18 are used to be placed in the grouting holes 17, the sleeve valve pipes 18 are provided with some slurry outlets 15, each slurry outlet 15 places are provided with rubber valves, along the sleeve valve pipes 18 A grout outlet 15 is arranged every 33cm in the lengthwise direction of the grout, and the grout 16 is placed in the sleeve valve pipe 18. The grout 16 includes a grout delivery pipe and two pressure chambers 10, and the pressure chamber 10 is a concave structure. Preferably, The outer surfaces of the two pressure chambers 10 are spliced ​​into a complete cylinder, and the inner surfaces of the two pressure chambers 10 are spliced ​​into an ellipsoidal surface. After...

Embodiment 2

[0046] This embodiment provides an application method of the deep hole sleeve valve pipe grouting device in Embodiment 1, including the following steps:

[0047] S1: Drilling the grouting hole 17, using an engineering drilling rig to drill the vertical grouting hole 17 through the mud wall drill collar operation; wherein, the engineering drilling rig is any existing equipment that can realize the drilling of the grouting hole 17;

[0048] S2: verticality measurement, using an inclinometer to measure the verticality of the grouting hole 17, wherein the inclinometer is any existing equipment that can measure the verticality of the grouting hole 17;

[0049] S3: Install the sleeve valve tube 18, connect several sections of the sleeve valve tube 18 sequentially with the sleeve 9, lower the sleeve valve tube 18 to a predetermined depth; the specific operation includes installing the ring frame 7 on the outer wall of the sleeve valve tube 18, so that the ring frame 7 is close to the...

Embodiment 3

[0063] This embodiment provides an application method of the deep hole sleeve valve tube grouting device in Embodiment 1. The difference from Embodiment 2 is only that the ratio of the components in the casing material 11 is cement: bentonite : water=1:1.5:1.8, or cement: bentonite: water=1:1.7:1.9, so as to meet the needs of various working conditions.

[0064] It should be noted that this embodiment only optimizes and improves the hardware structure of the deep hole sleeve valve pipe grouting device and its application method, and does not optimize and improve the control system of the remote controller.

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Abstract

The invention discloses a deep hole sleeve valve pipe grouting device which comprises grouting devices, a pressurizing and closing mechanism and a plurality of sleeve valve pipes. The plurality of sleeve valve pipes are fixedly connected in sequence through sleeve pipes. The connected sleeve valve pipes are used for being placed in grouting holes. A plurality of slurry outlets are formed in the sleeve valve pipes correspondingly. A rubber valve is arranged at each slurry outlet. The grouting devices are placed in the sleeve valve pipes. Each grouting device comprises a slurry conveying pipe and two pressure cavities, wherein the two pressure cavities and the inner walls of the sleeve valve pipes form a closing cavity after the pressure cavities swell, the slurry conveying pipes extend intothe closing cavity, the closing cavity can communicate with any slurry outlet, and the slurry conveying pipe is used for communicating with a slurry supply device. The pressurizing and closing mechanism communicates with the pressure cavities, and the pressurizing and closing mechanisms enable the pressure cavities to swell. According to the deep hole sleeve valve pipe grouting device, the sleevevalve pipes can be smoothly placed down to the bottom of the grouting holes, and the phenomena of slurry overflowing and leaking in the grouting process can be prevented.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a deep hole sleeve valve pipe grouting device and an application method thereof. Background technique [0002] The grouting method is a commonly used method in the process of foundation treatment reinforcement, seepage prevention, and deviation correction. At present, from the perspective of grouting methods and effects, sleeve valve pipe grouting is a method with wide applicability, because the sleeve valve Pipe grouting has the characteristics of sequential, segmental, quantitative, intermittent, and repeated grouting. Different grouting parameters can be used to grout loose and dense strata. Engineering has a wide range of applications. However, there are still some deficiencies in the grouting process of the sleeve valve pipe, such as the low strength between the joints of the sleeve valve pipe, and the bending phenomenon often occurs during the lowering pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/12E02D15/00E02B3/16E01C3/00E21D11/10E21B33/13
CPCE02D3/12E02D15/00E02B3/16E01C3/00E21D11/10E21B33/13
Inventor 聂庆科韩立君梁书奇贾向新张义莫艳合茆玉超李晓丹牛云凯纪迎超郭亚光张健允志斌李炜吴云东
Owner HEBEI CONSTR & INVESTIGATION RES INST