CN202039365U

CN202039365U - Prestressed centrifugal square pipe pile sinking device using central digging hydraulic method

Info

Publication number: CN202039365U
Application number: CN2011200553529U
Authority: CN
Inventors: 谢晓东; 卢寿根
Original assignee: SHANGHAI CHENGDI CONSTRUCTION DEVELOPMENT Co Ltd
Current assignee: Shanghai Chengdi Construction Co., Ltd.
Priority date: 2011-03-04
Filing date: 2011-03-04
Publication date: 2011-11-16
Anticipated expiration: 2021-03-04

Abstract

The utility model discloses a prestressed centrifugal square pipe pile sinking device using a central digging hydraulic method, which comprises a host, a hoist, a support, a reaction frame, a power head, a soil taking box and steel wire ropes. The hoist and the support are mounted on the host; the reaction frame, the power head, the soil taking box and the steel wire ropes are mounted on the support; the power head is mounted inside the support; the lower side of the power head is connected with a soil taking drill rod; and the soil taking drill rod penetrates through the soil taking box, a piston rod and a centrifugal square pipe pile and arrives at the bottom of the device. The prestressed centrifugal square pipe pile sinking device has the advantages of safety, reliability, low cost, high benefit, no noise, no pollution, no soil extrusion, no mud, environmental protection and the like.

Description

Middle pick hydraulic method prestressed centrifugally square pipe pile pile sinking device

Technical field

Pick hydraulic method prestressed centrifugally square pipe pile pile sinking device was mainly used in civilian and during industrial infrastructure builds during the utility model related to.

Background technology

The pile sinking device majority of existing prestressed centrifugally square pipe pile is to be applicable to hammering method and silent piling method, secondly is boring extracting soil plunging and bored pile method.1, hammering method: when the stake diameter is bigger, can adopt hammering method during the no resident of periphery, but exist noise big, black smoke has vibration again during hammering, is a kind of pile-sinking method of high pollution.A lot of cities have forbidden in the center to use, and the hammer of present domestic maximum has only 10T simultaneously, and impact force is 1100 tons to the maximum.When bearing capacity can only change bored pile into greater than 1100 ton hours, so present high ferro and bridge pile foundation all are to select bored pile for use; 2, static pressure method: to be the deadweight that utilizes equipment be pressed into a kind of method in the soil to stake to static pressure method, but because equipment self-weight is bigger, higher to site requirements, it is limited to be pressed into power, the hydraulic pressure pile press of present domestic maximum is 800 tons, bearing capacity of single pile also can only be selected bored pile for use greater than just not adopting this method more than 400 tons.More than two kinds of pile-sinking method exist a kind of insurmountable problem, a large amount of stakes are beaten during (pressures) bury, and the soil body is outwards expanded, a large amount of soil compactions influence peripheral building, road and subway, tunnel and pipeline etc. can both produce cracking, displacement or the like.Can only adopt bored pile so can not beat (pressure) prestressed centrifugally square pipe pile in urban centre and subway limit, limit, tunnel and building compact district.3, boring extracting soil plunging: promptly on former terrace, beat a hole with borrow equipment earlier, again stake is pressed in the hole, this method can adopt at northern area, because moisture content less in the soil, the hole can be shaped, but in southern Yangtze River Delta Area, water content is higher in the soil, draw the hole and just can't be shaped, stake just can't be beaten (pressure) and be gone into the also easy off normal of stake simultaneously.When stake was longer, boring extracting soil just was difficult to carry out, and the darkest at present fetching earth also can only be arrived about 30 meters; 4, another kind of pile foundation is the bored pile method: this method is a stake machine subdrilling hole on the ground, in the hole, irritate the steel bar concrete "forming column again, has the cost height, long in time limit, quality is difficult to not only guarantee and drilled pile but also have a large amount of mud to produce, mud is disposed and is difficult to, a large amount of mud all is disposed in the river, in the lake, in the sea, in the sewer, the size creek, sewer is stopped up by mud, government's annual cleaning sewer and creek mud expense are huge, cause great pollution, but at present on subway limit, urban centre, the river levee limit, the limit, tunnel, super highrise building, the high ferro foundation pile does not have soil compaction when promptly bearing capacity is big and can only adopt the bored pile method.

Summary of the invention

The utility model overcomes the deficiency of above several pile-sinking method, can replace the present employed device of bored pile pile-sinking method fully, make the middle pick hydraulic method prestressed centrifugally square pipe pile pile sinking device that to press centrifugal square pipe pile in the urban centre, this device has changed the structure of several devices in the past, not directly stake to be beaten during (pressure) bury, but directly take out soil with the drilling rod that fetches earth at the center in stake when stake is pressed in the soil, the soil that will take out reclaims by collection box simultaneously, the method is: with centrifugal square pipe pile hydraulic pressure down, make the method that centrifugal square pipe pile sinks with the hydraulic way that is installed in fetch earth case and piston rod on the reaction frame.

The utility model is to realize like this, pick hydraulic method prestressed centrifugally square pipe pile pile sinking device in a kind of, comprise main frame, be installed in hoist engine and support on the main frame, rack-mount reaction frame, unit head, case fetches earth, wire rope, described unit head is installed in internal stent, described unit head upper end is connected with wire rope, described wire rope is connected with hoist engine by a top of the trellis, described unit head below is connected with the drilling rod that fetches earth, the described drilling rod that fetches earth passes the case that fetches earth, piston rod and centrifugal square pipe pile arrive bottom of device, the described case inside of fetching earth is equipped with piston rod, described piston-rod lower end is connected with pile cover, and centrifugal square pipe pile is laid in described pile cover lower end.

The described case both sides of fetching earth are separately installed with tongue, tongue hole on the corresponding reaction frame of described tongue, described tongue is connected with the tongue piece, on the described tongue piece wire rope is installed, described wire rope is connected with hoist engine by a top of the trellis, and described reaction frame is provided with many row's tongues hole.

The utlity model has following remarkable advantages and beneficial effect:

1) has low cost, high benefit, noiselessness, free of contamination characteristics;

2) by the case that fetches earth soil is collected, embodied the civilization degree of construction, guarantee safety of construction, the feature of environmental protection;

3) with centrifugal square pipe pile, no soil compaction, no mud have been realized in the time of by digging.

Description of drawings

Fig. 1 is the side schematic view of pick hydraulic method prestressed centrifugally square pipe pile pile sinking device in the utility model;

Fig. 2 is the support front schematic view of pick hydraulic method prestressed centrifugally square pipe pile pile sinking device in the utility model.

Fig. 3 is the reaction frame front schematic view of pick hydraulic method prestressed centrifugally square pipe pile pile sinking device in the utility model.

Wherein: the 1-main frame; The 2-hoist engine; The 3-unit head; The 4-case that fetches earth; The 5-piston rod; The 6-pile cover; The 7-support; The centrifugal square pipe pile of 8-; The 9-drilling rod that fetches earth; 10-tongue hole; The 11-tongue; 12-tongue piece; The 13-reaction frame; 14,16-wire rope.

The specific embodiment

A kind of middle pick hydraulic method prestressed centrifugally square pipe pile pile sinking device shown in Fig. 1-2, comprise main frame 1, be installed in hoist engine 2 and support 7 on the main frame 1, be installed in the reaction frame 13 on the support 7, unit head 3, case 4 fetches earth, wire rope 14,16, described unit head 3 is installed in support 7 inside, described unit head 3 upper ends are connected with wire rope 14, described wire rope 14 is connected with hoist engine 2 by support 7 tops, described unit head 3 belows are connected with the drilling rod 9 that fetches earth, the described drilling rod 9 that fetches earth passes the case 4 that fetches earth, piston rod 5 and centrifugal square pipe pile 8 arrive bottom of device, described case 4 inside of fetching earth are equipped with piston rod 5, described piston rod 5 lower ends are connected with pile cover 6, and centrifugal square pipe pile 8 is laid in described pile cover 6 lower ends.

Described case 4 both sides of fetching earth are separately installed with tongue 11, tongue hole 10 on the described tongue 11 corresponding reaction frames 13, described tongue 11 is connected with tongue piece 12, on the described tongue piece 12 wire rope 16 is installed, described wire rope 16 is connected with hoist engine 2 by support 7 tops, and described reaction frame 12 is provided with many row's tongues hole 10.

The utility model is to implement like this: the drilling rod 9 that fetches earth that is connected with unit head 3 is inserted in the stake hole of centrifugal square pipe pile 8, centrifugal square pipe pile 8 is withstood on the pile cover; Driving the drilling rod 9 that fetches earth by unit head 3 rotates, drilling rod 9 fetches earth by fetching earth, the drilling rod 9 that fetches earth down rotates, the case 4 that fetches earth this moment is followed and is moved down, piston rod 5 shrinks simultaneously, when piston rod 5 is retracted to certain position, tongue 11 on the case 4 that fetches earth is stretched out, withstand in the tongue hole 10 on the reaction frame 13, start piston rod 5 hydraulic pressure, piston rod 5 elongations, because tongue 11 assigns in the tongue hole 10, fetch earth case 4 can't on move, piston rod 5 forms the piling action, make to finish down piling of pile cover 6 when piston rod 5 extends, the wire rope 16 that connects by tongue piece 12 spurs tongue pieces 12, tongue 11 is shunk, carry out unit head 3 once more and rotate 9 rotations of drive geotome bar, the unit head 3 and the case 4 that fetches earth move down, and piston rod 5 shrinks simultaneously, when being retracted to certain position, loosen wire rope 16, tongue piece 12 stretches out tongue 11, and tongue 11 puts in 13 times rows of reaction frame tongue hole 10, once more by top piling action, after the piling for several times centrifugal square pipe pile 8 is depressed into ground, in the case 4 that fetches earth, takes out the soil that takes out by the drilling rod 9 that fetches earth then, stack extremely on one side or the car outward transport; The unit head 3 and the drilling rod 9 that fetches earth are broken away from, drive unit head 3 upper end wire rope 14 by hoist engine 2, driving unit head 3 up moves, with the crawler belt loop wheel machine sling second the joint centrifugal square pipe pile 8, second joint is installed with second joint drilling rod 9 that fetches earth in the centrifugal square pipe pile 8, and second joint drilling rod 9 that fetches earth is connected on 3 of the power; Centrifugal square pipe pile 8 of first segment and the centrifugal square pipe pile 8 of second joint are connect by being weldingly connected; Weld full, the imporosity, the compliant requirement, passed examination continues the step 6 flow process, with this, the 3rd centrifugal square pipe pile 8 of joint or the centrifugal square pipe pile 8 of the 4th joint can take above action to continue to implement;

It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this manual has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. middle pick hydraulic method prestressed centrifugally square pipe pile pile sinking device, comprise main frame, be installed in hoist engine and support on the main frame, rack-mount reaction frame, unit head, case fetches earth, wire rope, it is characterized in that: described unit head is installed in internal stent, described unit head upper end is connected with wire rope, described wire rope is connected with hoist engine by a top of the trellis, described unit head below is connected with the drilling rod that fetches earth, the described drilling rod that fetches earth passes the case that fetches earth, piston rod and centrifugal square pipe pile arrive bottom of device, the described case inside of fetching earth is equipped with piston rod, described piston-rod lower end is connected with pile cover, and centrifugal square pipe pile is laid in described pile cover lower end.

2. pick hydraulic method prestressed centrifugally square pipe pile pile sinking device in according to claim 1, it is characterized in that: the described case both sides of fetching earth are separately installed with tongue, tongue hole on the corresponding reaction frame of described tongue, described tongue is connected with the tongue piece, on the described tongue piece wire rope is installed, described reaction frame is provided with many row's tongues hole.