CN203334300U

CN203334300U - Root pile supporting structure

Info

Publication number: CN203334300U
Application number: CN2013204039340U
Authority: CN
Inventors: 叶春林; 周革; 何文春; 黄太武; 王卫国; 蒋和平; 江培兵; 马四清; 王亚飞; 刘勇; 代云山
Original assignee: China Railway Siyuan Survey and Design Group Co Ltd
Current assignee: China Railway Siyuan Survey and Design Group Co Ltd
Priority date: 2013-07-08
Filing date: 2013-07-08
Publication date: 2013-12-11
Anticipated expiration: 2023-07-08

Abstract

The utility model discloses a root pile supporting structure which is arranged between the lower portion of one side of a railroad bed and one side of a mountain front abrupt slope. The root pile supporting structure comprises multiple rows of root piles arranged underground, bearing platforms are arranged on the root piles, retaining walls inclined towards the railroad bed are arranged in the centers of the bearing platforms, and the other ends of the retaining walls are connected with the railroad bed. The root piles used in the root pile supporting structure are small-diameter drilling perfusion type reinforced concrete piles, the pile diameter of the root piles is small, the depth is large, mud or clear water is adopted to protect walls in the drilling process, drivepipes can also be arranged on the hole walls, various macadam layers, dimension stone layers and rock strata can be penetrated through conveniently, and even any slope can be achieved. Meanwhile, the construction of the root piles is not influenced by underground water, hole forming and concrete pouring below an underground water level are not influenced.

Description

The root pile retaining structure

Technical field

The utility model relates to retaining structure, specifically refers to a kind of railway, highway, water conservancy and civilian construction equivalent-load power is not enough, underground water is grown steep slope foundation and both root pile retaining structures of wired Disease Treatment of being applicable to.

Background technology

Location, abrupt slope landform is steep in front of the mountains, and construction plant is narrow and small, and broken, the piece stone tumbled is rich on the top layer, stratum more, and the underground water growth, and bearing capacity of foundation soil is relatively low.When gear preventive works are set under this topographic and geologic condition, to vertical, the Its ultimate bearing capacity of ground, require high.Current steep hill road bed branch block reinforcing technique or be to adopt the large-scale supporters such as anchor pile+baffle arrangement, anchor pile+anchor cable+baffle arrangement system.To adopt drilled pile, rotary churning pile, cement mixing method stratum, then the barricade of constructing.

Because underground water is grown, be unfavorable for manual digging pile construction, narrow orographic condition has limited the operating efficiency of the large-scale ground treatment facilities such as drilled pile, the equipment such as rotary churning pile, agitation pile can't penetrate broken, the block stone layer that be rich on top layer, must could construct to designing pile length by drawing hole equipment, operating efficiency and construction quality are difficult to guarantee.

Summary of the invention

The purpose of this utility model is to provide a kind of root pile retaining structure, it is met under the steep slope foundation condition requirement of shelves engineering is set, and guarantees construction quality.

For achieving the above object, the designed a kind of root pile retaining structure of the utility model, it be arranged on railway bed one side-lower and in front of the mountains abrupt slope one side between, it comprises and pierces underground many rows root pile, be provided with cushion cap, described cushion cap central authorities on described root pile and be provided with the barricade that tilts to railway bed, the other end of described barricade is connecting railway bed.

Further, the joint of described cushion cap and barricade is provided with the slabstone tooth.

Again further, be provided with top mat and lower floor's steel mesh reinforcement in described cushion cap.

Again further, described root pile comprises outer field concrete pile body and inner main muscle from outside to inside, described concrete pile body is built to cushion cap and is provided with lower floor's steel mesh reinforcement, be provided with the stirrup of a plurality of fastening main muscle in described concrete pile body, described main muscle stretches into the interior anchoring of cushion cap and does not exceed top mat.

Again further, the stake footpath of described root pile is 120 ~ 180mm, and stake is long is 10 ~ 15m, its spacing 0.5 ~ 1.0m, described concrete pile body stretches in cushion cap and is no more than 0.3m, and described main muscle is comprised of three Φ 28mm reinforcing bars, and described main muscle stretches into anchoring segment length in cushion cap and is not less than 0.56m.

Again further, described cushion cap length and width and height are 5 ~ 10m, 3 ~ 3.5m and 1.0 ~ 1.3m.

Again further, the height of described barricade is 5 ~ 10m, and its angle of inclination is 60 ~ 75 degree.

The beneficial effects of the utility model:

(1) can penetrate in the ground of top layer broken, the block stone layer be rich in, in construction, be subject to the impact of underground water little.

The root pile used in the utility model is a kind of slim hole filling type reinforced concrete pile, its footpath is less, can reach the very large degree of depth, adopt mud or clear water retaining wall during boring, also can be equipped with sleeve pipe at hole wall, be convenient to penetrate various broken, block stone layers and rock stratum, even can accomplish any gradient.Simultaneously, be not subject to the impact of underground water in the root pile construction, the following pore-forming of groundwater table and concrete perfusion are all unaffected.

(2) vertical, the horizontal bearing capacity of the ground after reinforcing significantly improves, and the supporter formed with cushion cap, barricade is good integrity.

The utility model forms compound base after adopting Solidified Foundation Using Tree-root Piles, the elongated arrangement of reinforcement of while root pile, and vertical, the horizontal bearing capacity of ground improve, reinforcing cage in root pile is together with the cushion cap reinforcing bar binding, cushion cap pushes up pre-buried slabstone tooth, with the barricade on it, links into an integrated entity, and good integrity.

(3) the construction plant requirement is little, and work efficiency is high, and both in wired Disease Treatment, interference on the road was little.

The utility model root pile stake footpath is less, and boring machine is simple and easy, light, is not subject to place and spatial limitation, and can under difficult condition, be installed; Pore-forming, pile-forming speed are fast, in the situation that narrow field, come in and go out difficulty, environment and condition of work is poor, the duration is nervous have its superiority.Cushion cap excavation, reinforcing bar binding, concreting, barricade formwork erection the operation such as are built and all can be utilized small mechanical equipment or manually complete, and whole working procedure requires low to construction plant.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is cushion cap and barricade connection diagram in the utility model;

Fig. 3 is cushion cap and root pile connection diagram in the utility model;

Fig. 4 is cushion cap and root pile joint detail schematic diagram in the utility model

In figure, 1. railway bed, 2. abrupt slope, 3. root pile (31. concrete pile bodies, 32. main muscle, 33. stirrups), 4. cushion cap (41. top mats, 42. lower floor's steel mesh reinforcements), 5. barricade, 6. slabstone tooth in front of the mountains.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, so that those skilled in the art understand.

Embodiment 1

A kind of root pile retaining structure in Fig. 1, it be arranged on railway bed 1 one side-lowers and in front of the mountains abrupt slope 2 one sides between, it comprises and pierces underground many rows root pile 3, be provided with cushion cap 4, cushion cap 4 central authorities on root pile 3 and be provided with the barricade 5 that tilts to railway bed 1, the other end of barricade 5 is connecting railway bed 1.The height of barricade 5 is 5 ~ 10m, and its angle of inclination is 60 degree.Its thickness is according to calculating.

Cushion cap 4 is provided with slabstone tooth 6 with the joint of barricade 5.Be provided with top mat 41 and lower floor's steel mesh reinforcement 42 in cushion cap 5.Cushion cap 5 length and widths and height are 10m, 3.5m and 1.3m.

Root pile 3 comprises outer field concrete pile body 31 and inner main muscle 32 from outside to inside, concrete pile body 31 is built to cushion cap 5 and is provided with lower floor's steel mesh reinforcement 42, be provided with the stirrup 33 of a plurality of fastening main muscle 32 in concrete pile body 31, described main muscle 32 stretches into the interior anchoring of cushion cap 5 and does not exceed top mat 41.

The stake footpath of root pile 3 is 150mm, and stake is long is 15m, its spacing 0.5m, and concrete pile body 31 stretches into the interior 0.2m of cushion cap 5, and described main muscle 32 is comprised of three Φ 28mm reinforcing bars, and main muscle 32 stretches into the interior anchoring segment length of cushion cap 5 and is not less than 0.96m.

Work progress:

(1) clear table, setting-out:

Arrange excavation machinery or manually along the circuit direction, excavate the root pile job platform, for guaranteeing pile quality, cutting depth should be controlled at 1m place on the design of pile top absolute altitude.Scope of operation arrangement personnel after excavation carry out artificial leveling and process, survey crew on excavation face, accurately emit root pile the stake position so that the equipment contraposition spud in.

(2) working procedure:

Rig is in place → clear hole → descending reinforcing cage → lower Grouting Pipe → secondary pile hole cleaning of boring (mud off) → pore-forming inspection → once → fill out filling aggregate → clear water hole flushing (see and return clear water) → once grouting → 28 day after pile quality detection → construction bearing platform → construction barricade.

Although above-described embodiment has been made detailed description to the utility model; but it is only the utility model part embodiment; rather than whole embodiment; people can also obtain other embodiment according to the present embodiment under without creative prerequisite, and these embodiment belong to the utility model protection domain.

Claims

1. root pile retaining structure, it be arranged on railway bed (1) one side-lower and in front of the mountains abrupt slope (2) one sides between, it is characterized in that: it comprises and pierces underground many rows root pile (3), be provided with cushion cap (4), described cushion cap (4) central authorities on described root pile (3) and be provided with the barricade (5) that tilts to railway bed (1), the other end of described barricade (5) is connecting railway bed (1).

2. root pile retaining structure according to claim 1 is characterized in that: described cushion cap (4) is provided with slabstone tooth (6) with the joint of barricade (5).

3. root pile retaining structure according to claim 1 and 2, is characterized in that: be provided with top mat (41) and lower floor's steel mesh reinforcement (42) in described cushion cap (5).

4. root pile retaining structure according to claim 3, it is characterized in that: described root pile (3) comprises outer field concrete pile body (31) and inner main muscle (32) from outside to inside, described concrete pile body (31) is built to cushion cap (5) and is provided with lower floor's steel mesh reinforcement (42), be provided with the stirrup (33) of a plurality of fastening main muscle (32) in described concrete pile body (31), described main muscle (32) stretches into the interior anchoring of cushion cap (5) and does not exceed top mat (41).

5. root pile retaining structure according to claim 4, it is characterized in that: the stake footpath of described root pile (3) is 120 ~ 180mm, stake is long is 10 ~ 15m, its spacing 0.5 ~ 1.0m, described concrete pile body (31) stretches in cushion cap (5) and is no more than 0.3m, described main muscle (32) is comprised of three Φ 28mm reinforcing bars, and described main muscle (32) stretches into the interior anchoring segment length of cushion cap (5) and is not less than 0.56m.

6. root pile retaining structure according to claim 1 and 2, it is characterized in that: described cushion cap (5) length and width and height are 5 ~ 10m, 3 ~ 3.5m and 1.0 ~ 1.3m.

7. root pile retaining structure according to claim 1 and 2, it is characterized in that: the height of described barricade (5) is 5 ~ 10m, its angle of inclination is 60 ~ 75 degree.