Sleeve valve pipe and application to landslide control

A sleeve raft pipe and side slope technology, which is applied to the sleeve raft pipe and the application field in landslide control, can solve the problems of grouting and stringing, low grouting pressure of bolts, etc., and achieves improved occlusal force, simple construction method, The effect of improving overall stability

Inactive Publication Date: 2014-03-26
HUNAN CITY UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In the grouting construction process of strengthening rock and soil slopes, due to the low grouting pressure of ordinary anchor bolts, the possibility of grouting and

Method used

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  • Sleeve valve pipe and application to landslide control
  • Sleeve valve pipe and application to landslide control
  • Sleeve valve pipe and application to landslide control

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Depend on figure 1 It can be seen that a sleeve raft pipe includes a grouting outer pipe 1, and the grouting outer pipe 1 is a steel pipe.

[0027] The outer surface of the grouting outer pipe 1 according to the present invention is provided with threads.

[0028] The outer surface of the grouting outer pipe 1 of the present invention is provided with an outer bracket 2 .

[0029] The application of above-mentioned sleeve raft pipe in landslide control, it comprises the following steps:

[0030] ⑴According to the designed hole diameter, use the mud retaining method to drill the hole to the design depth, the hole depth penetrates the potential sliding surface to 2m~3m in the stable rock and soil body, the drill hole is slightly inclined downward, and the inclination angle is 3°~15°;

[0031] In this embodiment, the construction site is firstly ...

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Abstract

The invention discloses a sleeve valve pipe and application to landslide control. The sleeve valve pipe comprises a grouting outer pipe and is characterized in that the grouting outer pipe is a steel pipe, and the outer surface of the grouting outer pipe is provided with threads and an outer support. The landslide control includes the steps of drilling holes, grouting the sleeve valve pipe, placing a steel strand, pouring cement paste and anchoring the grouting outer pipe and the steel strand. The construction method is simple, operability is high, and economic benefits are obvious; different grouting materials can be adopted according to needs by using the sleeve valve pipe, segmented grouting is achieved, a certain segment in a grouting area can be grouted repeatedly, the steel strand is installed in the reserved grouting outer pipe, the cement paste is injected to the grouting outer pipe which serves as an anchor rod, in this way, a weak intercalated layer in a slope can be reinforced effectively, occlusal force between an anchoring body and a rock-soil body is improved, and overall stability of the slope is improved.

Description

technical field [0001] The invention relates to the technical field of rock and soil anchoring engineering, in particular to a sleeve raft pipe and its application in landslide control. Background technique [0002] The use of bolts to reinforce rock and soil slopes is one of the important methods commonly used in engineering circles. In the grouting construction process of strengthening rock and soil slopes, due to the low grouting pressure of ordinary anchor bolts, the possibility of grouting and grouting during grouting is relatively high. Different grouting materials cannot be used according to different stratum characteristics. Different grouting parameters. [0003] The sleeve raft pipe grouting method was pioneered by the French Soletanche Foundation Engineering Company in the 1950s. The structure of the sleeve valve pipe is mainly composed of a PVC grouting outer pipe, a grouting inner pipe, a rubber sleeve, and a sealing ring. It can be repeated several times in t...

Claims

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Application Information

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IPC IPC(8): E02D5/74E02D17/20
Inventor 孔纲强孙广超顾红伟周立朵孙学谨
Owner HUNAN CITY UNIV
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