Landslide protection works

FIELD: construction industry.

SUBSTANCE: landslide works include rows of support bored piles, combined with foundation frame, arranged across landslide slope and drain system. In order to protect against surface landslides and mud flows, piles are cut, every two of which have, next but one, length which is less than height of landslide part of slope soil and connected above moving soil by means of foundation frames to piles reinforced with frameworks and embedded in non-shifting soils; at that, drain facilities made by means of trenchless method are connected to non-reinforced piles.

EFFECT: reducing labour input, terms of well construction and increasing slope stability factor.

2 dwg

 

The invention relates to the construction and can be used in the development of slopes, which can occur landslides in clayey soil.

It is known that the stationary contact and slipping of the soil water accumulates, there is a layer of grease, in which the angle of internal friction decreases almost to zero.

For drying of this layer have to tear trench drains (see, for example, "Landslide construction on the roads". M.: Transport, 1985, s-129, 4, 7).

As the clay gives bad water, they are not always effective. The work of excavation mechanisms on the slopes complicated.

If you use to strip wells underground trenchless technology, it allows you to get a contact layer with its great depth.

Machine directional drilling MNB-50 on the landslide to pave the number of wells, which will then be filled with a highly porous, filtering concrete (see ad release MEMEX, trenchless technology. Minsk. The representative of the Russian Federation Sankt-Petersburg).

As a prototype used landslide construction including a series of bored piles, combined grillage placed across the landslide slope, and drainage system. This structure does not protect the slopes from the surface of landslides and mud flows. In addition, if the principal about Olsen great and the depth of his large, the horizontal drilling is difficult (Reference engineering design, preparation of the built-up areas, Ed. by Wesneski, Kyiv: Budivelnik, 1983, p.106, .V.12.6).

Technical solution to the problem is to reduce the complexity, the shortening of the device well and the increase of the coefficient of slope stability.

This objective is achieved in that the landslide construction including a series of hard drilled piles, combined grillage placed across the landslide slope, and drainage system to protect against surface landslides and mud flows, piles made split, every two of which through one have a length less than the height of the landslide part of a ground slope, and the joint rolling over the ground by a Foundation with piles, reinforced frames and embedded in nezesaussi soils, while the unreinforced piles summed arranged trenchless drain structures.

The novelty of the proposal is that possible to perform continuous wall of the split piles, controlled directional drilling to lay to unreinforced, without reaching the contact layer underground wells drains and fill their filtering highly porous concrete, drying the surface area of landslides and increasing the angle of internal friction in the zone of possible cm is recorded.

The invention is illustrated by drawings, where figure 1 is a view of the slope at the side of the strip wells on the stationary contact and slipping layer figure 2 - site plan with the location of the slots for directional drilling.

In landslide construction perform a series of persistent bored piles 1 and 2, the combined grillage 3 and placed across the landslide slope 4, and drainage system 5. For protection from superficial landslides and mud flows 6 piles made split and with a height exceeding the height of landslides and mud flows 6. Every two piles 1 through one have a length less than the height polzuemoy part of the soil landslide slope 4. The other 2 piles reinforced and embedded in nezesaussi soils. To unreinforced piles 1 trenchless made drainage system 5 using the machine directional drilling MNB-50.

The sequence of device landslide protection works as follows: first arrange the recess 7, which pass through the hole 8, pushing for a concrete pump 9, and fill the hole 8 filter concrete, in the body of the landslide 4 in the contact zone 10 increases the friction. Then the concrete pump 9 is removed. Split unreinforced piles 1 will not give you together with elevated grillage 3 and embedded in nezesaussi soils reinforced piles 2 to develop over ostim landslides and mud flows 6.

Landslide construction including a series of hard drilled piles, combined grillage placed across the landslide slope, and drainage system, characterized in that for protection from superficial landslides and mud flows piles made split, every two of which through one have a length less than the height of the landslide part of a ground slope, and the joint rolling over the ground by a Foundation with piles, reinforced frames and embedded in nezesaussi soils, however, unreinforced piles summed arranged trenchless drainage.



 

Same patents:

FIELD: construction.

SUBSTANCE: method of foundation construction involves installation of embedded posts, capping beam and junction units for posts and capping beam. Preliminary soil excavation is performed at the planned foundation point to form 'trough' with horizontal bottom covered by sand filling. Then posts are embedded by pressing to a definite depth, and horizontal thermal insulation screen is laid on prepared sand filling in horizontal 'trough' bottom plane by putting the screen on embedded posts from above in the holes for posts made in the screen in advance, with further mounting of capping beam onto embedded posts by junction units. Then sleeper wall of basement element is attached to external side of embedded posts, which in turn carries vertical thermal insulation screen linked to horizontal thermal insulation screen, and water-proof key covering embedded horizontal plate of thermal insulation screen from above is placed in 'trough' onto the space formed by two screens, with thermal insulation screen covered by sand cushion and then by flagged path. Horizontal screen is covered by sand cushion at internal post side, while vertical wall of thermal insulation screen attached at external sleeper wall is rigidly connected to embedded posts.

EFFECT: enhanced operational quality, reduced cost of lodging construction.

12 cl, 3 dwg

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FIELD: construction.

SUBSTANCE: method of foundation construction involves installation of embedded posts, capping beam and junction units for posts and capping beam. Preliminary soil excavation is performed at the planned foundation point to form 'trough' with horizontal bottom covered by sand filling. Then posts are embedded by pressing to a definite depth, and horizontal thermal insulation screen is laid on prepared sand filling in horizontal 'trough' bottom plane by putting the screen on embedded posts from above in the holes for posts made in the screen in advance, with further mounting of capping beam onto embedded posts by junction units. Then sleeper wall of basement element is attached to external side of embedded posts, which in turn carries vertical thermal insulation screen linked to horizontal thermal insulation screen, and water-proof key covering embedded horizontal plate of thermal insulation screen from above is placed in 'trough' onto the space formed by two screens, with thermal insulation screen covered by sand cushion and then by flagged path. Horizontal screen is covered by sand cushion at internal post side, while vertical wall of thermal insulation screen attached at external sleeper wall is rigidly connected to embedded posts.

EFFECT: enhanced operational quality, reduced cost of lodging construction.

12 cl, 3 dwg

FIELD: construction industry.

SUBSTANCE: landslide works include rows of support bored piles, combined with foundation frame, arranged across landslide slope and drain system. In order to protect against surface landslides and mud flows, piles are cut, every two of which have, next but one, length which is less than height of landslide part of slope soil and connected above moving soil by means of foundation frames to piles reinforced with frameworks and embedded in non-shifting soils; at that, drain facilities made by means of trenchless method are connected to non-reinforced piles.

EFFECT: reducing labour input, terms of well construction and increasing slope stability factor.

2 dwg

FIELD: construction.

SUBSTANCE: invention relates to the field of construction, namely for the structure of free-standing foundations, erected on natural basis during construction of buildings and constructions for various purpose. Foundation under the column includes the column footing, slab part. In order to increase the carrying capacity and reduce the draft at the foot portion of foundation, protrusions are made at an angle of 120, at that, the area of protrusions Aprotr is of (0.60-0.90) from the total area of the foot portion A. In the central portion of the foot portion of foundation there is a recess filled with rigid material with height h, not exceeding the value of the maximum permissible draft Su for this type of construction.

EFFECT: technical result consists in the increase of load-bearing capacity to the action of vertical and horizontal loads, reduction of foundation draft.

10 dwg

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