畢業(yè)論文-朱集礦主井凍結(jié)壁和井壁結(jié)構(gòu)設(shè)計

摘  要

本設(shè)計的主要任務(wù)有兩個，既朱集礦主井的凍結(jié)壁和井壁結(jié)構(gòu)設(shè)計。設(shè)計內(nèi)容一共分為四章，分別為：第一章主要介紹國內(nèi)外凍結(jié)壁和井壁結(jié)構(gòu)設(shè)計的發(fā)展歷程，包括：設(shè)計理念的形成、實踐，在我國的的引進(jìn)發(fā)展，和對更深層次設(shè)計思想的探索等。第二章主要介紹朱集礦的工程概況，水文地質(zhì)概況，和主井的主要技術(shù)參數(shù)，為而后的設(shè)計提供必要的數(shù)據(jù)儲備。第三章是主井的凍結(jié)壁設(shè)計，主要包括：凍結(jié)壁厚度的計算，凍結(jié)壁平均溫度的計算。凍結(jié)壁厚度的計算，主要是從表土段土層中選出三段控制其厚度的土層，然后采用多姆克第三、第四強度理論和經(jīng)驗公式計算結(jié)果的平均值，來比較得到。凍結(jié)壁平均溫度的計算，主要是利用體平均溫度的計算方法，由于體平均溫度計算公式是適用在單排管凍結(jié)下的，而實際主井的凍結(jié)方案是三排管的差異凍結(jié)，因此最后的計算平均溫度與實際設(shè)計平均溫度有出入。第四章是主井的井壁結(jié)構(gòu)設(shè)計。主要設(shè)計理念是采用雙層復(fù)合井壁，內(nèi)層井壁按承受水壓力計算，外層井壁按承受凍結(jié)壓力計算，全井筒按水土壓力校核。確定井壁厚度，主要是根據(jù)井筒地質(zhì)柱狀圖，把表土段土層分成三層，每一層又按內(nèi)外層井壁各自承受的力分別計算出相應(yīng)的井壁厚度。然后是井壁的穩(wěn)定性、強度驗算以及配筋計算等，主要計算內(nèi)容有：井壁環(huán)向穩(wěn)定性的驗算，內(nèi)外層井壁環(huán)向配筋的計算和按吊掛力計算的外層井壁的抗裂驗算和豎向抗拉鋼筋的配筋計算。

關(guān)鍵詞：立井、凍結(jié)壁設(shè)計、內(nèi)層井壁，外層井壁，設(shè)計。

 
A FREEZE ON THE MAIN SHAFT AND THE SHAFT WALL STRUCTURE DESIGN OF ZHUJI COAL MINE
                              
ABSTRACT

This design has two main design task is not only the Chinese set of freeze wells mine shaft wall and the structural design. Chapter I: at home and abroad to introduce a freeze on the main shaft wall and the structural design of the development process, including: the formation of design concepts, practice, in the introduction of China's development, and a deeper exploration of design ideas. Chapter II: mainly mining projects Zhu Overview, hydrological geology, and the main shaft of the main technical parameters for the design and then provide the necessary data on reserves. Chapter III: is the main shaft of the frozen wall design, including: a freeze on the calculation of wall thickness, freezing the calculation of the average temperature of the wall. A freeze on the calculation of wall thickness, mainly from the topsoil layer selected paragraph three of the soil to control its thickness, and then used dome third, fourth strength theory and the empirical formula for calculating the average of the results to be compared. A freeze on the calculation of the average temperature of the wall, the main body is to use the method of calculating the average temperature, average body temperature as a result of the calculation formula is applicable to freeze in a single row under control, but the actual freezing of the main shaft is the difference between the three pipes to freeze, so the final the calculation of average temperature and average temperature is different from the actual design. Chapter IV: is the main shaft of the wall structure design. The main design concept is the use of double-layer composite wall, the inner wall by water pressure to bear, the outer wall by the freezing of the pressure to bear, the whole shaft by checking the pressure of water and soil. Determine the wall thickness, are mainly based on the geological column shaft, the surface soil layer is divided into three paragraphs, each layer of wall and floor in accordance with their respective internal and external forces were calculated under the corresponding wall
 thickness. Then the stability, strength and reinforcement of checking the calculations, are: Central to the stability of wall checked, both inside and outside the ring wall to the reinforcement layer of calculation and calculation by the hanging wall of the outer layer of the anti - Checking and vertical split tensile steel reinforcement of the calculation.

KEYWORDS: shaft, frozen wall design, the inner wall, outer wall design.

 
目錄
摘  要 I
ABSTRACT II
引言 1
第一章 國內(nèi)外凍結(jié)壁和井壁設(shè)計現(xiàn)狀概述 2
1.1 我國建井發(fā)展概況 2
1.2 國外凍結(jié)法鑿井的研究現(xiàn)狀 2
1.3 我國凍結(jié)法立井施工技術(shù)發(fā)展歷程 3
1.4 井壁結(jié)構(gòu)概況 4
1.5 我國井壁結(jié)構(gòu)型式和凍結(jié)井壁的發(fā)展概況 5
1.6 國外凍結(jié)井壁發(fā)展概況 7
1.7 我國現(xiàn)階段井壁設(shè)計方法及工藝 7
1.8 深井施工需要研究的幾個課題 9
1.9 設(shè)計研究中存在的一些問題 10
第二章 朱集礦主井設(shè)計概況 12
2.1 井筒概況 12
2.2 地質(zhì)概況 12
2.2.1水文地質(zhì) 12
2.2.2  環(huán)境地質(zhì) 16
第三章 朱集礦主井凍結(jié)壁設(shè)計 21
3.1 凍結(jié)方案的選擇 22
3.2 凍結(jié)壁厚度的計算 22
3.3 凍結(jié)壁平均溫度的計算 25
3.4 鉆孔施工 26
第四章 朱集礦主井井壁設(shè)計 32
4.1 計算原則 32
4.2 確定井壁厚度 32
4.3 井壁環(huán)向穩(wěn)定性驗算 35
4.4 井壁圓環(huán)受均壓時的強度驗算和內(nèi)外層井壁配計算 36
4.5 按吊掛力計算外層井壁豎向鋼筋及抗裂驗算 40
結(jié)論 44
參考文獻(xiàn) 45
致謝 46