CN2233424Y

CN2233424Y - Hand pipe pile structure of prestressed pipe pile structure

Info

Publication number: CN2233424Y
Application number: CN 94222630
Authority: CN
Inventors: 彭高培
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-09-27
Filing date: 1994-09-27
Publication date: 1996-08-21
Anticipated expiration: 2004-09-27

Abstract

The utility model relates to a hand digging pipe pile structure or a prestressed pipe pile structure, which belongs to a pile structure. The utility model is characterized in that a hole digging pipe pile utilizes a converse guide frame and adopts the hole digging forming method to construct. Preformed holes are arranged around a tube wall, and longitudinal bearing bars or pressing coal water slurry are inserted into the preformed holes to form a reinforced concrete pipe pile structure. The pipe pile adopts initial stress, thus forming the prestressed reinforced concrete pipe pile structure. The hole digging pipe pile can be used for a supporting structure and an engineering pile structure. Compared with a manual pile digging pile which is widely used at present, the hand digging pipe pile has reasonable structure, fully exerts the potential of materials, saves materials 40% and 50%, and reduces cost more than 30%.

Description

Manually digging hole tube pile structure or prestressed pipe pilework

The utility model belongs to a kind of pilework.

At present, in China's underground engineering construction, generally adopting diameter is that the REINFORCED CONCRETE ARTIFICIAL hole digging pile (hereinafter to be referred as hole digging pile) of 1500 millimeter is as supporting and protection structure and engineering piles structure, the construction technology of hole digging pile is: excavation of earthwork and breast wall concrete are from top to bottom, both segmentations one by one crossed construction till design elevation; Then, whole reinforcement cage is installed, pouring intermediate structure concrete.No matter be supporting and protection structure, or the engineering piles structure, all do not give full play to the potentiality of material, economic effect is bad.

The purpose of this utility model is to provide a kind of novel pilework system---manually digging hole tube pile structure (hereinafter to be referred as borehole pile tube or pile tube).

The borehole tube pile construction is by the aid of special use---and the contrary leading truck of doing, its structure and construction all have tangible characteristics.Design feature is that the borehole pile tube is prestressing force or non-prestressed tubular structure, and the longitudinal stress muscle is symmetry or asymmetric arrangement of reinforcement; Construction characteristic is the contrary work of concrete segmentation, does not lay the longitudinal stress muscle during pouring, and tube wall is provided with vertical preformed hole, and the longitudinal stress muscle inserts the preformed hole filling or mud jacking forms reinforced concrete pipe pile.Pile tube longitudinal stress muscle waters in the pile tube base, in top stretch-draw, then becomes prestressing force borehole pile tube, or is called for short pile for prestressed pipe.The contrary leading truck of doing partly is made up of guide peg, gate ring, sliding guide etc. three.The leading truck height is about 1600 millimeters, and guide peg is positioned in the middle of the tube wall, and the garden ring spacing is about 300 millimeters.Leading truck constantly sinks with excavation of earthwork, till about 100 millimeters, supports internal mold pouring tube wall concrete in guide peg is stayed preformed hole, and pile tube is executed according to this one by one mutually.The final stage pile tube is not established preformed hole, so that remove leading truck, or the longitudinal stress muscle is provided with prestressing force.The borehole pile tube is executed mutually at soft stratum, can set up the flexible support structure.The flexible support structure, exactly lay screen pack at outer wall, screen pack is supported on the guide peg by horizontal spacer, with vertical pull bar series connection, is fixed on the tube wall concrete not sink with leading truck between the horizontal spacer.Screen pack and horizontal spacer sink to constantly laying with leading truck, and the flexible support structure promptly constantly forms.If, can not establish the flexible support structure in hard soil layer construction.The borehole pile tube is used for supporting and protection structure and engineering piles structure.It is flexural member that the borehole pile tube is used for supporting and protection structure, is designed to cantilevered and anchor rod type.Cantilevered is worked alone by pile tube self, and anchor rod type is by anchor pole and pile tube co-operation.It is compressed member that the borehole pile tube is used for the engineering piles structure, according to pile tube supporting capacity size, is designed to individual layer tube wall and double-layer tube wall.The individual layer tube wall is the contrary tube wall of doing of segmentation, and it is outer wall as tube wall that double-layer tube wall is looked segmentation contrary, and other increases one deck and is just making the inwall of constructing, and pile tube is the composite construction of inside and outside tube wall.Outer wall can not established preformed hole, and the contrary guide peg of making leading truck is along the inboard sinking of outer wall, and structure longitudinal stress muscle is located at inwall; If outer wall is provided with preformed hole, then inwall elder generation placing of concrete is irritated or mud jacking behind the preformed hole.The borehole pile tube is by current Chinese code of practice---and Code for design of concrete structures (GBJ10-89) and Code for design of building (GBJ7-89) design.

The borehole pile tube is no matter be used for supporting and protection structure or engineering piles structure, and all more existing hole digging pile is superior.It is better that the borehole pile tube has architectural characteristic, can give full play to the material potentiality, saves material 40～50%, falls to cost more than 30%; Soft stratums such as the quicksand of complexity, mud can be constructed effectively, do not influence workmanship.

Fig. 1 is the tube pile construction phantom drawing; Fig. 2 is the pile tube plan view; Fig. 3 is the tube pile construction sectional drawing, and wherein, the AB section is that tubular pile concrete waters, and the BC section is that hole of post is molded, waits to support tube wall internal mold placing of concrete.Expression on the figure: 1 is tube wall, and 2 is preformed hole, and 3 is guide peg, and 4 is gate ring, and 5 is sliding guide, and 6 is the flexible support structure, and 7 is horizontal spacer.

Further specify in conjunction with the accompanying drawings.Borehole pile tube key is to make leading truck by means of contrary, can make the tube wall of pile tube form preformed hole effectively, and the longitudinal stress muscle inserts from preformed hole, filling or mud jacking and become reinforced concrete pipe pile structure or prestressed pipe pilework.

Claims

1, a kind of manually digging hole pile tube is characterized in that the borehole pile tube is prestressing force or non-prestressed tubular structure, is applied to supporting and protection structure and engineering piles structure.

2, according to the described borehole tube pile structure of claim 1, it is characterized in that tube pile construction adopts the contrary leading truck of doing, the contrary guide peg of making leading truck is located in the tube wall or tube wall is inboard all can.

3,, it is characterized in that the pile tube outer wall adopts the flexible support structure according to the described borehole tube pile structure of claim 1.

4, according to the described borehole tube pile structure of claim 1, it is characterized in that the horizontal spacer of employing supports between pile tube hole wall soil layer or flexible support structure and the guide peg, with vertical pull bar series connection, be fixed on the concrete between the horizontal spacer.

5,, it is characterized in that the longitudinal stress muscle inserts the preformed hole filling or mud jacking forms according to the described borehole tube pile structure of claim 1.

6,, it is characterized in that the structural pipe wall concrete adopts adverse construction method according to the described borehole tube pile structure of claim 1.