CN209854698U - Collapsible loess's foundation treatment structure that soaks in advance - Google Patents

Abstract

The utility model discloses a pre-soaking foundation treatment structure of collapsible loess, which comprises a pre-soaking foundation, wherein an outer water injection pipe is inserted in the pre-soaking foundation, a first water injection hole is arranged on the outer water injection pipe, a water injection bumping post is arranged in the first water injection hole, two ends of the water injection bumping post are respectively provided with an anti-blocking block and an arc extrusion head, an inner water injection pipe is inserted in the outer water injection pipe, a second water injection hole is arranged on the inner water injection pipe, a water inlet is arranged at the upper side of the inner water injection pipe, and a water delivery pipe is connected at the upper side of the water inlet. Effectively prevent the emergence of first water injection hole jam phenomenon, be favorable to improving the efficiency of water injection.

Description

Collapsible loess's foundation treatment structure that soaks in advance

Technical Field

The utility model relates to a collapsible loess area ground treatment technical field specifically is a collapsible loess's ground processing structure that soaks in advance.

Background

The distribution area of loess and loess-shaped soil in China is 64 ten thousand square kilometers, which is 6.3 percent of the area of the loess. In the midstream region of the yellow river, haolan, west, east to taihang, north great wall, south to qinling mountains are almost entirely covered with loess. Aiming at large-area collapsible loess, eliminating the collapsible property is a necessary measure for ensuring the safety of buildings. At present, the mature and more applied treatment methods mainly comprise a bedding method, a dynamic compaction method, a pre-soaking method and the like, while for the deep collapsible loess foundation, the treatment depths of the bedding method, the dynamic compaction method and the compaction method are limited, the soaking efficiency of the conventional pre-soaking method is low, and the secondary treatment is needed for the soil body within the range of 6m below the ground.

The prior art has the following disadvantages: the prior art discloses the application numbers as follows: CN201720701173.5 a pre-soaked foundation treatment structure of collapsible loess. The pre-soaking foundation treatment structure comprises a pressure water injection pump, a protective layer paved on the surface of a foundation to be treated, a load layer covered above the protective layer and water injection holes arranged at a plurality of different depths in the foundation area of the foundation to be treated, the periphery of the protective layer is embedded in a soil layer, a water injection pipe is embedded in each water injection hole, the length of the water injection pipe is the same as the depth of the water injection hole, the pipe wall of the water injection pipe is provided with a plurality of flower holes, the bottom surface of each water injection pipe is a sealing surface, and the top end of the water injection pipe is communicated with the pressure water injection pump through a main water pipe. The method can treat the soil body collapsibility within the designed depth range at one time, shorten the collapsibility deformation time, obviously improve the water injection efficiency and save the construction period. However, when the water injection pipe is inserted into loess, the flower holes are easily blocked, so that water is not easy to enter through the flower holes, and the water injection effect is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a collapsible loess's ground processing structure that soaks in advance to solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a collapsible loess's preliminary soaking ground processing structure, includes the preliminary soaking ground, the inside outer filler pipe that is equipped with of inserting of preliminary soaking ground, first water injection hole has been seted up on the outer filler pipe, install the water injection bumping post in the first water injection hole, water injection bumping post both ends are installed respectively and are prevented stifled dog and arc extrusion head, the inside immersion pipe that is equipped with of outer filler pipe inserts, the second water injection hole has been seted up on the interior immersion pipe, the water inlet is installed to interior immersion pipe upside, the water inlet upside is connected with the raceway, and raceway one end passes through water pump and pond intercommunication, outer immersion pipe and interior immersion pipe lower extreme all set to seal structure, and outer immersion pipe bottom is provided with the drill bit.

Furthermore, the outer water injection pipe and the inner water immersion pipe are provided with a plurality of water injection pipes and are arranged in a square block shape transversely and longitudinally.

Furthermore, the outer water injection pipe and the inner soaking pipe are both arranged to be of a hollow stainless steel structure, and the outer diameter of the inner soaking pipe is smaller than the inner diameter of the outer water injection pipe.

Further, the water injection bumping post outside cover is equipped with the spring, and the spring both ends respectively with prevent stifled dog and first water injection hole lateral wall fixed connection, install limit stop between water injection bumping post and the arc extrusion head.

Furthermore, a top seat is welded at the upper end of the inner soaking pipe, and a rotary handle is welded around the top seat.

Furthermore, an impermeable membrane is arranged between the pre-soaking foundation and the collapsible loess layer.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) through being divided into outer water injection pipe and interior dip pipe with the water injection pipe, outer water injection pipe is used for inserting and establishes and get through the water injection passageway in the ground of presoaking, and interior dip pipe inserts and establishes when outer water injection pipe, can strut to make first water injection hole and the ground direct contact of presoaking carry out the water injection with preventing stifled dog, effectively prevents first water injection hole blocking phenomenon's emergence, is favorable to improving the efficiency of water injection.

(2) And outer water injection pipe bottom is provided with the drill bit, and the welding of interior dip pipe upper end has the footstock, the footstock has rotatory handle all around, is convenient for bore into collapsible loess layer with outer water injection pipe inside, and the external diameter of interior dip pipe is less than the internal diameter of outer water injection pipe in addition, with interior dip pipe insert outer water injection intraductal can, the simple to operate of main water pipe is swift, convenient to use.

Drawings

FIG. 1 is a schematic view of the main section structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of the present invention;

FIG. 3 is a top view of the inserting structure of the outer water injection pipe and the inner water immersion pipe of the present invention;

fig. 4 is the structure schematic diagram of the water-immersed tube in the outer water injection tube which is not inserted.

In the figure: 1. collapsible loess layers; 2. pre-soaking the foundation; 3. an impermeable membrane; 4. an external water injection pipe; 5. an inner soaking water pipe; 6. a top seat; 7. a water inlet; 8. a water delivery pipe; 9. a drill bit; 10. rotating the handle; 11. an arc-shaped extrusion head; 12. a first water injection hole; 13. a water injection retaining column; 14. an anti-blocking block; 15. a spring; 16. a second water injection hole; 17. and a limit stop.

Detailed Description

The technical solution in the embodiment of the present invention will be made clear below with reference to the drawings in the embodiment of the present invention; the present invention has been described in considerable detail with reference to certain preferred versions thereof. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in an embodiment of the present invention, a pre-soaked foundation treatment structure for collapsible loess includes a pre-soaked foundation 2, an outer water injection pipe 4 inserted into the pre-soaked foundation 2 for inserting into the pre-soaked foundation 2 to open a water injection passage, a first water injection hole 12 formed on the outer water injection pipe 4 for soaking the pre-soaked foundation 2, a water injection blocking column 13 installed in the first water injection hole 12 and having an outer diameter half of an inner diameter of the first water injection hole 12, an anti-blocking block 14 and an arc extrusion head 11 installed at two ends of the water injection blocking column 13, an outer diameter of the anti-blocking block 14 slightly smaller than an inner diameter of the first water injection hole 12, and an inner water injection pipe 5 capable of extruding the arc extrusion head 11 to move the water injection blocking column 12 outward, the anti-blocking block 14 being outwardly supported to make the first water injection hole 12 directly contact with the pre-soaked foundation 2 for water injection, inside the inserting of outer water injection pipe 4 is equipped with interior dip pipe 5, second water filling hole 16 has been seted up on interior dip pipe 5, water inlet 7 is installed to interior dip pipe 5 upside, water inlet 7 upside is connected with raceway 8, and 8 one ends of raceway pass through water pump and pond intercommunication, outer water injection pipe 4 and interior dip pipe 5 lower extreme all set seal structure to, and outer water injection pipe 4 bottom is provided with drill bit 9, are convenient for bore outer water injection pipe 4 inside 2 of preimpregnation water ground.

Preferably, the outer water injection pipe 4 and the inner water immersion pipe 5 are provided with a plurality of square blocks which are arranged transversely and longitudinally, so that the uniform soaking treatment of the pre-soaking foundation 2 is facilitated.

Preferably, the outer water injection pipe 4 and the inner soaking pipe 5 are both arranged to be of a hollow stainless steel structure, and the outer diameter of the inner soaking pipe 5 is smaller than the inner diameter of the outer water injection pipe 4, so that the inner soaking pipe 5 can be conveniently inserted into the outer water injection pipe 4.

Preferably, the cover is equipped with spring 15 outside water injection bumping post 13, and 15 both ends of spring respectively with prevent stifled dog 14 and first water injection hole 12 lateral wall fixed connection, be convenient for prevent stifled dog 14 and reset to first water injection hole 12 in, install limit stop 17 between water injection bumping post 13 and the arc extrusion head 11, can stretch out and draw back spacing to water injection bumping post 13's length.

Preferably, the welding of 4 upper ends of outer water injection pipe has footstock 6, the welding has rotatory handle 10 around footstock 6 for outer water injection pipe 4 simple to operate is swift, convenient to use.

Preferably, an impermeable film 3 is arranged between the pre-soaking foundation 2 and the collapsible loess layer 1, so that a good water blocking effect can be achieved.

The working principle is as follows: through dividing into outer water injection pipe 4 and interior dip pipe 5 with the water injection pipe, outer water injection pipe 4 has rotatory handle 10 to bore around the welding and inserts and establish and get through the water injection passageway in 2 presoaked foundations, then when inserting interior dip pipe 5 and establishing in outer water injection pipe 4, interior dip pipe 5 sets to most advanced form through the lower part, can extrude arc extrusion head 11, make water injection bumping post 12 move outward, to prevent that stifled dog 14 outwards struts messenger's first water injection hole 12 and presoaked foundation 2 direct contact from carrying out the water injection, effectively prevent the emergence of first water injection hole blocking phenomenon, be favorable to improving the efficiency of water injection, and the simple to operate of water injection pipe is swift, high durability and convenient use.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a collapsible loess's preliminary soaking ground processing structure, includes preliminary soaking ground (2), its characterized in that: the utility model discloses a water injection device, including preimpregnation ground (2), water injection pipe (4) outside inserting, first water injection hole (12) have been seted up on outer water injection pipe (4), install water injection bumping post (13) in first water injection hole (12), water injection bumping post (13) both ends are installed respectively and are prevented stifled dog (14) and arc extrusion head (11), outer water injection pipe (4) inside is inserted and is equipped with interior dip pipe (5), set up second water injection hole (16) on interior dip pipe (5), water inlet (7) are installed to interior dip pipe (5) upside, water inlet (7) upside is connected with raceway (8), and raceway (8) one end passes through water pump and pond intercommunication, outer water injection pipe (4) and interior dip pipe (5) lower extreme all set to seal structure, and outer water injection pipe (4) bottom is provided with drill bit (9).

2. The pre-soaked foundation treatment structure of collapsible loess as set forth in claim 1, wherein: the outer water injection pipe (4) and the inner water immersion pipe (5) are arranged in a plurality of square blocks transversely and longitudinally.

3. The pre-soaked foundation treatment structure of collapsible loess as set forth in claim 1, wherein: the outer water injection pipe (4) and the inner water immersion pipe (5) are both arranged to be of a hollow stainless steel structure, and the outer diameter of the inner water immersion pipe (5) is smaller than the inner diameter of the outer water injection pipe (4).

4. The pre-soaked foundation treatment structure of collapsible loess as set forth in claim 1, wherein: water injection bumping post (13) outside cover is equipped with spring (15), and spring (15) both ends respectively with prevent stifled dog (14) and first water injection hole (12) lateral wall fixed connection, install limit stop (17) between water injection bumping post (13) and arc extrusion head (11).

5. The pre-soaked foundation treatment structure of collapsible loess as set forth in claim 1, wherein: the outer water injection pipe (4) upper end welding has footstock (6), footstock (6) welding has rotatory handle (10) all around.

6. The pre-soaked foundation treatment structure of collapsible loess as set forth in claim 1, wherein: an impermeable membrane (3) is arranged between the pre-soaking foundation (2) and the collapsible loess layer (1).