CN101575857B - Landslide inflatable drainage treatment method - Google Patents
Landslide inflatable drainage treatment method Download PDFInfo
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- CN101575857B CN101575857B CN2009100996030A CN200910099603A CN101575857B CN 101575857 B CN101575857 B CN 101575857B CN 2009100996030 A CN2009100996030 A CN 2009100996030A CN 200910099603 A CN200910099603 A CN 200910099603A CN 101575857 B CN101575857 B CN 101575857B
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- air
- landslide
- borehole wall
- boring
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- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 2
- 239000003673 groundwater Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009412 basement excavation Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000004575 stone Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a landslide inflatable drainage treatment method which comprises the flowing steps of: firstly, arranging boreholes, inside which air pipes are inserted, wherein the air pipes inserted in the boreholes are divided into two segments, namely, a closed borehole wall segment and an open borehole wall segment; connecting the air pipes and cross joint valves with an air compressor and the air pipes inserted in the boreholes; then pressing air into all the boreholes and inflating potential landslide mass, and squeezing out groundwater in the potential landslide mass by air pressure so as to achieve air-water displacement. When the pressed-in air bursts from the earth surface, the pressing of the air into the potential landslide mass is stopped. After a 1 to 2-day interval,inflation is conducted again for 3 to 5 times to achieve the aim of improving the stability of the potential landslide mass. By applying the invention, the landslide control project cost is low, the control project implementation process is simple and convenient, and the governance process does not involve earth and stone excavation works, thus quickly producing reinforcing effects, with especially obvious effects in landslide rescue disposal.
Description
Technical field
The present invention relates to a kind of method of administering the landslide, relate in particular to a kind of landslide inflatable drainage treatment method.
Background technology
The landslide is common geological disaster, and particularly in mountain area, the hills engineering construction process, landslide disaster usually causes great loss to engineering construction.Most landslides are closely connected with rainfall, are the generations that causes coming down because rainfall causes the groundwater table of sloping body to rise.The great majority landslide shows as: slide during rainy season, be in metastable state during dry season again.Particularly contain rubble cohesive soil side slope, they mostly are residual clinosol, ancient avalanche or ancient slide and pile up, and its stability and WATER LEVEL CHANGES relation is very close.It is the accumulation of a rainfall that slope body groundwater table rises, synchronous monitoring result to rainfall and sloping body groundwater table and Landslide Deformation destruction shows, to fairly large landslide, one time the heavy showers process can not cause sloping body groundwater table significantly to rise, can not cause that the landslide starts yet, but when having the rainfall in early stage to accumulate, the heavy showers process will cause sloping body groundwater table significantly to rise and cause the sliding failure on landslide.Therefore, if can cross the Cheng Qian in next heavy showers, the mode of taking the initiative drainage slope body underground water just can effectively prevent the startup of coming down.
Landslide disaster is disposed and is adopted antislide pile, anchor cable, the face of land and engineering measures such as underdrainage, unloading usually at present, and there is huge difference in the use cost of various measures.Generally speaking, the expense of administering the landslide with antiskid engineering measures such as antislide pile and anchor cables is higher, and lower with the expense on drainage works measure improvement landslide.The drainage measure on current landslide has: underdrainage hole, horizontal drainage channel, collecting well, surface drainage ditch and weeper drain etc., these drainage measures all are the gravitational potential characteristics of utilizing water, and the surface water of sloping body and underground water are drained to the low water stage district.The subject matter of landslide drainage measure existence has at present: (1) drainage measure is higher to the draining environmental requirement of sloping body, and many side slopes often lack favourable geomorphological environment, causes the validity of drainage measure to be difficult to guarantee; (2) not initiatively water discharge technology measure so far.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of landslide inflatable drainage treatment method is provided.
The objective of the invention is to be achieved through the following technical solutions: a kind of landslide inflatable drainage treatment method, this method may further comprise the steps:
(1) by horizontal 10～20 meters intervals, vertical 20～30 meters layout borings at interval, drilling depth is 100～110% of a potential sliding mass thickness; Insert appendix in the boring, the appendix that inserts boring is divided into borehole wall closed section and the ventilative section of borehole wall two parts, and the length of the ventilative section of borehole wall closed section and borehole wall was than 4: 1; Be connected air compressor with the four-way air valve and insert the appendix of boring with appendix.
(2) be pressed into air to each boring, potential sliding mass is inflated, the blowing pressure is ascending; Extrude underground water in the potential sliding mass by air pressure, realize air-water displacement, when being pressed into gas and emerging on the face of land, stop to be pressed into air, after 1～2 day, carry out gas replenishment process once more at interval to potential sliding mass, inflate 3～5 times, reach the purpose of improving potential sliding mass stability.
The invention has the beneficial effects as follows: use the present invention, the construction costs of landslide control is low, and the improvement project implementing process is easy and simple to handle, and governance process does not relate to the earthwork evacuation engineering, can produce consolidation effect fast, and is particularly evident in the effect of speedily carrying out rescue work in disposing in the landslide.
Description of drawings
Fig. 1 is the implementation schematic diagram of landslide inflatable drainage treatment method of the present invention.
Among the figure: air compressor machine 1, appendix 2, boring 3, borehole wall closed section 4, the ventilative section 5 of borehole wall, sloping body groundwater table 6, the slide plane 7 on potential landslide.
The specific embodiment
Principle of the present invention is the mode of action at the influence on groundwater Landslide Stability, utilizes the gases at high pressure extruding that is pressed into sloping body to discharge underground water, reduces sloping body groundwater table and ground saturation ratio, thereby realizes improving the stability of sloping body.Specifically, probing forms a series of borings on sloping body, and appendix is inserted below the potential sliding surface of sloping body, adopts air compressor machine to be pressed into gases at high pressure to each boring, extrudes the underground water of sloping body, makes the slope ground groundwater table decreasing or is in unsaturated state.
Describe the present invention below with reference to the accompanying drawings in detail, it is more obvious that purpose of the present invention and effect will become.
According to the slope project geological conditions, by horizontal 10～20 meters intervals, vertical 20～30 meters layout borings 3 at interval, determine boring 3 degree of depth according to potential sliding mass thickness, hole depth is generally 100～110% of potential sliding mass thickness.Insert appendix 2 in the boring 3, the appendix 2 that inserts boring 3 is divided into borehole wall closed section 5 and the ventilative section of borehole wall 6 two parts, and the length ratio of the ventilative section 6 of borehole wall closed section 5 and borehole wall was generally 4: 1.Be connected air compressor 1 with four-way air valve 3 and insert the appendix 2 of boring 3 with appendix 2.
During use, be pressed into air to each boring, potential sliding mass is inflated, the blowing pressure is ascending.Extrude underground water in the potential sliding mass by air pressure, realize air-water displacement, when being pressed into gas and emerging on the face of land, stop to be pressed into air, after 1～2 day, carry out gas replenishment process once more at interval to potential sliding mass, inflate 3～5 times, reach the purpose of improving potential sliding mass stability.
In being pressed into air event, should note monitoring, so that reach the assay of consolidation effect to slope deforming and sloping body groundwater table.Open four-way air valve 3 overhead-valves stopping to be pressed into the air stage, can monitor the WATER LEVEL CHANGES process.
Claims (1)
1. a landslide inflatable drainage treatment method is characterized in that, this method may further comprise the steps:
(1) by horizontal 10～20 meters intervals, vertical 20～30 meters layout borings at interval, drilling depth is 100～110% of a potential sliding mass thickness; Insert appendix in the boring, the appendix that inserts boring is divided into borehole wall closed section and the ventilative section of borehole wall two parts from top to bottom, and the length ratio of the ventilative section of borehole wall closed section and borehole wall is 4: 1; Be connected air compressor with the four-way air valve and insert the appendix of boring with appendix;
(2) be pressed into air to each boring, potential sliding mass is inflated, the blowing pressure is ascending; Extrude underground water in the potential sliding mass by air pressure, realize air-water displacement, when being pressed into gas and emerging on the face of land, stop to be pressed into air, after 1～2 day, carry out gas replenishment process once more at interval to potential sliding mass, inflate 3～5 times, reach the purpose of improving potential sliding mass stability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100996030A CN101575857B (en) | 2009-06-11 | 2009-06-11 | Landslide inflatable drainage treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100996030A CN101575857B (en) | 2009-06-11 | 2009-06-11 | Landslide inflatable drainage treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101575857A CN101575857A (en) | 2009-11-11 |
| CN101575857B true CN101575857B (en) | 2010-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100996030A Expired - Fee Related CN101575857B (en) | 2009-06-11 | 2009-06-11 | Landslide inflatable drainage treatment method |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635121A (en) * | 2012-05-10 | 2012-08-15 | 浙江大学 | High-pressure charging intercepting method for landslide rescue control |
| CN107727830A (en) * | 2017-09-27 | 2018-02-23 | 三峡大学 | A kind of device and method for simulating air-cushion type landslide |
| CN109469075B (en) * | 2018-10-26 | 2021-02-19 | 中铁二院成都勘察设计研究院有限责任公司 | Landslide control method |
| CN110306569B (en) * | 2019-06-26 | 2021-05-04 | 东华理工大学 | Controllable artificial induced landslide system |
| CN110306567B (en) * | 2019-06-26 | 2021-04-16 | 东华理工大学 | System and method for inducing and controlling landslide by using compressed air |
| CN111074914B (en) * | 2019-12-31 | 2021-04-02 | 三峡大学 | Device and method for actively promoting landslide collapse |
| CN112095646A (en) * | 2020-08-29 | 2020-12-18 | 山成栋 | Construction method of air curtain wall |
| CN117385860B (en) * | 2023-12-07 | 2024-02-23 | 石家庄铁道大学 | Deep soil layer gas-water exchange equipment |
-
2009
- 2009-06-11 CN CN2009100996030A patent/CN101575857B/en not_active Expired - Fee Related
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| CN101575857A (en) | 2009-11-11 |
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Granted publication date: 20101201 Termination date: 20130611 |