營口地區(qū)粉噴樁復(fù)合地基承載力試驗(yàn)研究.pdf

1、沈陽建筑大學(xué)碩士學(xué)位論文營口地區(qū)粉噴樁復(fù)合地基承載力試驗(yàn)研究姓名：王國佐申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：道路與鐵道工程指導(dǎo)教師：趙儉斌2007-01I IA B S T R A C T碩士研究生學(xué)位論文 Experimental Study on bearing capacity of DJM Composite Foundation in YingKou District ABSTRACT With the contin

2、ued expansion of the scale of the construction, engineering geological conditions are bad increased gradually. Especially in the coastal areas, there are lots of soft soil, ground handling of wh

3、at has become the crux of the problem. The dry- cement jet mixing pile composite foundation is one of methods to the foundation improvement, because of its low price, construction high speed

4、,no noise and no pollution, etc. it is widely used in varied projects and has its own comprehensive prospect. But different parts of the soft soil, the foundation bearing DJM composite charac

5、ters have different performance, thus the capacity of DJM Composite Foundation study has important significance in YingKou district. This paper mainly to the DJM composite foundation load test d

6、ata in YingKou district, the consolidation effect on the DJM composite foundation in YingKou district is evaluated. The value standard of reduction coefficient “ ß ”of the soil among piles

7、for the powder- spray pile composite foundation has been presented. The research includes several aspects below: l. The author first introduces the formation、distribution、physical mechanical behavior

8、 and engineering characteristic of soft soil, and the author studies the mechanism of cement power- sprayed piles composite foundation from the chemical reaction between cement particle and soil

9、grain. 2. The geological conditions in YingKou district is introduced and the main ground handling of soft soil in YingKou district is summarized. 3. The design of cement power- sprayed is intr

10、oduced in the thesis ,including composite foundation bearing capacity design, the checking computations of the methods of designing DJM composite foundation. 4. Combining with field test, the fact

11、ors influencing the construction quality of cement power- sprayed piles are analyzed. It has good effect on reinforcing DJM composite foundation from the results of field test. And it also meets the upp

12、er construction request of the strength and deformation of foundation. 5. Based on field test of DJM composite foundation, considering of the different ground soil condition in Yingkou district,